Resin sand curing device for resin sand casting

Abstract

The utility model provides a resin sand curing device for resin sand casting, which comprises a resin sand curing kettle, an external circulating heater, a mixing shaft, a driving part, a heating piece and a material injection pipe orifice, the external circulating heater is fixedly arranged outside the resin sand curing kettle, and the external circulating heater and the resin sand curing kettle are communicated with each other; the mixing shaft rotationally mounted in the resin sand curing kettle is fixed with the output end of the driving part fixedly mounted outside the mixing shaft; the heating piece is mounted in the resin sand curing kettle, and the injection pipe orifice is fixedly mounted outside the resin sand curing kettle; the resin sand is efficiently mixed through the built-in mixing shaft and the external driver, uniform components are ensured, the baffling heating plates of the external circulating heater are arranged in a U shape and in a staggered mirror image mode, a serpentine channel is formed, the heat transfer efficiency is improved, the resin sand is uniformly heated, the temperature gradient is avoided, and the curing quality is improved. Design optimization reduces energy consumption, and tight connection promotes efficient operation of the system.

Description

Technical Field

[0001] The utility model belongs to the technical field of resin solidification, in particular to a resin sand solidification device for resin sand casting. Background Art

[0002] In the resin sand curing process, traditional curing equipment often suffers from uneven heating, low curing efficiency, high energy consumption, and inadequate mixing of the resin raw materials. These issues not only affect product quality and performance, but also increase production costs and energy consumption. Specifically, traditional curing equipment typically relies on a single heating source, resulting in large temperature gradients within the resin sand and inconsistent curing results. Furthermore, mixing devices are often inefficient, leading to uneven distribution of components within the resin sand, further affecting the uniformity and strength of the cured product. Furthermore, traditional curing equipment lacks an effective collaborative working mechanism, resulting in low heat transfer efficiency and difficulty in finely controlling the resin sand.

[0003] Therefore, it is very necessary to invent a kind of resin sand casting resin sand curing device. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a resin sand curing device for resin sand casting, comprising a resin sand curing kettle, an external circulation heater, a mixing shaft, a driving component, a heating element, and an injection nozzle, wherein the external circulation heater is fixedly installed on the outside of the resin sand curing kettle, and the two are interconnected; the mixing shaft is rotatably installed inside the resin sand curing kettle and is fixed to the output end of the driving component fixedly installed on the outside; the heating element is installed inside the resin sand curing kettle, and the injection nozzle is fixedly installed on the outside of the resin sand curing kettle;

[0005] The external circulation heater includes an insulating shell, a fixed base, a mounting frame, a pumping device, a pumping device and a baffle heating plate. The insulating shell is fixedly mounted on the outside of the resin sand curing kettle through the fixed base; the mounting frame is fixedly mounted on the fixed base, and the pumping device and the pumping device are fixedly mounted on the mounting frame respectively. The insulating shell is connected to the resin sand curing kettle through the pumping device and the pumping device; a plurality of baffle heating plates are fixedly mounted inside the insulating shell.

[0006] Preferably, the fixed base is an I-shaped structure, and the two arc-shaped surfaces of the fixed base respectively fit with the heat-insulating shell and the resin sand curing kettle.

[0007] Preferably, the mounting frame is a "T"-shaped structure, and the pumping device and pumping device fixedly installed on the mounting frame are peristaltic pumps, and are respectively located above or below the thermal insulation shell, and the pumping inlet and pumping outlet of the pumping device and the pumping out device are respectively connected to the thermal insulation shell and the thermal insulation shell.

[0008] Preferably, the plurality of baffle heating plates fixedly installed inside the heat-insulating shell are arranged in staggered mirror images, the baffle heating plates are of a "U"-shaped structure, heating wire assemblies are installed on the baffle heating plates, and the plurality of baffle heating plates form a serpentine channel for the resin raw material.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The utility model achieves sufficient mixing of the resin sand in the curing kettle through the coordination of the built-in mixing shaft and the external drive, ensuring the uniform distribution of the raw material components. At the same time, the baffle heating plate inside the external circulation heater is arranged in a "U"-shaped structure and in a mirror-image manner, forming a serpentine channel for the resin raw material, which not only increases the heating area, but also allows heat to be evenly transferred in the resin sand, effectively avoiding the temperature gradient problem and improving the curing quality. The design of the baffle heating plate enables heat to be transferred to the resin sand more efficiently, reducing energy waste. At the same time, the close connection and coordinated work between the external circulation heater and the resin sand curing kettle enable the entire system to operate more efficiently. By optimizing the heat transfer path and mixing method, not only the curing efficiency and quality are improved, but also the service life of the equipment is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a half-section structural schematic diagram of the utility model.

[0013] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the external circulation heater of the utility model.

[0014] In the picture:

[0015] Resin sand curing kettle 1, external circulation heater 2, heat-insulating shell 21, fixed base 22, mounting frame 23, pumping device 24, pumping device 25, baffle heating plate 26, mixing shaft 3, driving component 4, heating element 5, injection nozzle 6. DETAILED DESCRIPTION

[0016] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0017] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0018] As attached Figure 1 To the attached Figure 3 As shown:

[0019] The utility model provides a resin sand curing device for resin sand casting, which includes a resin sand curing kettle 1, an external circulation heater 2, a mixing shaft 3, a driving component 4, a heating element 5 and an injection nozzle 6. The external circulation heater 2 is fixedly installed on the outside of the resin sand curing kettle 1, and the two are connected to each other; the mixing shaft 3 is rotatably installed inside the resin sand curing kettle 1 and is fixed to the output end of the driving component 4 fixedly installed on the outside; the heating element 5 is installed inside the resin sand curing kettle 1, and the injection nozzle 6 is fixedly installed on the outside of the resin sand curing kettle 1.

[0020] The external circulation heater 2 includes an insulating shell 21, a fixed base 22, a mounting frame 23, a pumping device 24, a pumping device 25, and a baffle heating plate 26. The insulating shell 21 is fixedly mounted on the outside of the resin sand curing kettle 1 via the fixed base 22; the mounting frame 23 is fixedly mounted on the fixed base 22, and the pumping device 24 and the pumping device 25 are fixedly mounted on the mounting frame 23. The insulating shell 21 is connected to the resin sand curing kettle 1 via the pumping device 24 and the pumping device 25; a plurality of baffle heating plates 26 are fixedly mounted inside the insulating shell 21. The close connection and coordinated operation between the external circulation heater 2 and the resin sand curing kettle 1 enable the entire system to operate more efficiently. By optimizing the heat transfer path and mixing method, not only the curing efficiency and quality are improved, but also the service life of the equipment is extended. Example 1:

[0021] Specifically, the fixed base 22 adopts an I-shaped structure. This structure not only provides excellent stability and support, but also ensures a tight fit between the thermal insulation shell 21 and the resin sand curing kettle 1. The two curved surfaces of the fixed base 22 respectively match the outer surfaces of the thermal insulation shell 21 and the resin sand curing kettle 1, and are firmly connected by bolts or other fastening methods to form a single integrated structure. This design not only simplifies the installation process but also improves the system's sealing and thermal efficiency.

[0022] Specifically, the mounting frame 23 is designed as a "T"-shaped structure and is firmly fixed on the fixed base 22. On the mounting frame 23, a pumping device 24 and a pumping device 25 are respectively installed, both of which are peristaltic pumps. Peristaltic pumps are widely used in situations where precise flow control is required due to their stability, reliability and easy maintenance. In this embodiment, the pumping device 24 is located above the thermal insulation shell 21, and is responsible for pumping the resin sand raw materials inside the thermal insulation shell 21 into the resin sand curing kettle 1; while the pumping device 25 is located below the thermal insulation shell 21, and is responsible for pumping the resin sand raw materials out of the resin sand curing kettle 1 and pumping them into the thermal insulation shell 21. The pumping inlet and the pumping outlet are respectively connected to the internal space of the thermal insulation shell 21 and the resin sand curing kettle 1 to ensure that the resin sand can flow smoothly.

[0023] Specifically, a number of baffle heating plates 26 are fixedly installed inside the heat-insulating shell 21. These heating plates are arranged in staggered mirror images, that is, two adjacent heating plates are in a mirror-symmetrical relationship on the horizontal plane. The baffle heating plates 26 adopt a "U"-shaped structural design, which helps to increase the heating area and guide the resin sand to form a serpentine channel during the heating process. A heating wire assembly is installed on the baffle heating plate 26. By controlling the power and working time of the heating wire assembly, precise heating of the resin sand can be achieved. Several baffle heating plates 26 cooperate with each other to form a complex heating network, so that the resin sand can be evenly heated in the process of flowing through the entire heat-insulating shell 21, thereby improving the curing effect and quality. Example 2:

[0024] First, resin sand is injected into the resin sand curing kettle 1 through the injection nozzle 6. During the injection process, the resin sand raw material first contacts the heating element 5 inside the resin sand curing kettle 1, starting a preliminary heating process to improve the fluidity and mixability of the resin sand.

[0025] Then, the driving component 4 is started, driving the mixing shaft 3 to rotate inside the resin sand curing kettle 1. The rotation of the mixing shaft 3 causes the resin sand to be strongly stirred and mixed in the kettle, ensuring that the various components in the resin sand are evenly distributed, thereby improving the quality of the cured product.

[0026] At the same time, the external circulation heater 2 starts working. The pumping device 25 starts to pump the resin sand that has been preliminarily mixed and heated in the resin sand curing kettle 1 into the interior of the heat-insulating shell 21. When the resin sand flows through the heat-insulating shell 21, it will encounter several baffle heating plates 26 arranged in mirror images. These baffle heating plates 26 adopt a "U"-shaped structure design, which not only increases the heating area, but also guides the resin sand to form a serpentine channel, so that the resin sand can be fully and evenly heated during the flow process. The heating wire assembly controls the heating power and working time according to the preset program to ensure that the resin sand reaches the optimal curing temperature while avoiding quality problems caused by overheating.

[0027] After the resin sand is heated and further mixed in the heat-insulating shell 21, the pumping device 24 is started to pump the treated resin sand back into the resin sand curing kettle 1. At this time, the resin sand has better fluidity and higher temperature, which is conducive to the subsequent curing reaction.

[0028] Finally, the resin sand continues to cure in the resin sand curing kettle 1. Due to the thorough mixing and uniform heating in the early stages, the various components of the resin sand are able to crosslink and cure more effectively, thereby improving the strength and stability of the product. After the entire curing process is completed, the product is discharged through the discharge port of the resin sand curing kettle 1 for subsequent processing and treatment.

[0029] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the scope of protection of the utility model.

Claims

1. A resin sand curing device for resin sand casting, characterized in that: The invention comprises a resin sand curing kettle (1), an external circulation heater (2), a mixing shaft (3), a driving component (4), a heating element (5) and an injection nozzle (6); the external circulation heater (2) is fixedly installed on the outside of the resin sand curing kettle (1), and the two are interconnected; the mixing shaft (3) is rotatably installed inside the resin sand curing kettle (1) and is fixed to the output end of the driving component (4) fixedly installed on the outside; the heating element (5) is installed inside the resin sand curing kettle (1), and the injection nozzle (6) is fixedly installed on the outside of the resin sand curing kettle (1); The external circulation heater (2) comprises a heat-insulating shell (21), a fixed base (22), a mounting frame (23), a pumping device (24), a pumping device (25) and a baffle heating plate (26); the heat-insulating shell (21) is fixedly mounted on the outside of the resin sand curing kettle (1) via the fixed base (22); the mounting frame (23) is fixedly mounted on the fixed base (22); the pumping device (24) and the pumping device (25) are fixedly mounted on the mounting frame (23); the heat-insulating shell (21) is connected to the resin sand curing kettle (1) via the pumping device (24) and the pumping device (25); and a plurality of the baffle heating plates (26) are fixedly mounted inside the heat-insulating shell (21).

2. The resin sand solidifying device for resin sand casting according to claim 1, wherein: The fixed base (22) is an "I"-shaped structure, and two arc-shaped surfaces of the fixed base (22) respectively fit with the heat-insulating shell (21) and the resin sand curing kettle (1).

3. The resin sand solidifying device for resin sand casting according to claim 2, characterized in that: The mounting frame (23) is a "T"-shaped structure. The pumping device (24) and the pumping device (25) fixedly mounted on the mounting frame (23) are peristaltic pumps and are respectively located above or below the heat-insulating shell (21). The pumping pipe openings and the pumping pipe openings of the pumping device (24) and the pumping device (25) are respectively connected to the heat-insulating shell (21) and the heat-insulating shell (21).

4. The resin sand solidifying device for resin sand casting according to claim 3, wherein: The plurality of baffle heating plates (26) fixedly mounted inside the heat-insulating housing (21) are arranged in a mirror-image arrangement. The baffle heating plates (26) are U-shaped structures. A heating wire assembly is mounted on the baffle heating plates (26). The plurality of baffle heating plates (26) form a serpentine channel for the resin raw material.

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