Inlet fixing device for hot air duct in casting

Abstract

This utility model belongs to the field of casting technology and relates to a fixing device for the air inlet of a hot air duct for casting. It includes a base plate, with a guide cylinder welded to one side surface of the base plate. The guide cylinder is coaxially arranged with a through hole in the base plate. A sealing ring is installed in a groove on the inner wall of the guide cylinder. Positioning pins are respectively installed on the bottom surface of both ends of the base plate along its length. The positioning pins at either end of the base plate along its length are evenly distributed along the width direction of the base plate. The diameter of the positioning pins is 5-8 mm, and the length is 20-30 mm. This utility model has a reasonable and ingenious structure, specifically addressing the problem of hot air overflow during mold preheating to reduce the temperature difference between the casting and the mold before pouring. By fixing the hot air duct with a fixing device, it ensures that the hot air duct will not fall off when hot air is blown into the mold cavity, and that the air inlet of the hot air duct will not overflow, thus ensuring reliable and efficient drying of the mold cavity.

Description

Technical Field

[0001] This utility model belongs to the field of casting technology and relates to a fixing device for the air inlet of a hot air pipe for casting. Background Technology

[0002] Before pouring, the mold needs to be preheated to a certain temperature to reduce the temperature difference between the casting and the mold, and to prevent defects such as cracks or shrinkage cavities from forming in the casting.

[0003] Because hot air is blown into the cavity, and the air inlet has no fixed point, it is easy for the hot air to escape. The hot air cannot be completely blown into the cavity (hot air overflow), which may cause the cavity to not dry and cause defects on the product surface. Summary of the Invention

[0004] To address the aforementioned problems, this utility model provides a hot air inlet fixing device for casting hot air pipes. When in use, this fixing device can ensure that hot air is completely blown into the mold cavity, effectively preventing hot air from overflowing.

[0005] According to the technical solution of this utility model: a hot air pipe inlet fixing device for casting, characterized in that: it includes a base plate, a guide cylinder is welded to one side surface of the base plate, and the guide cylinder is coaxially arranged with the through hole of the base plate; A sealing ring is installed in the groove on the inner wall of the guide tube, and positioning pins are installed on the bottom surface at both ends of the base plate along the length direction.

[0006] As a further improvement of this utility model, the positioning pins at any end of the base plate along the length direction are evenly distributed along the width direction of the base plate.

[0007] As a further improvement of this utility model, the positioning pin has a diameter of 5-8mm and a length of 20-30mm.

[0008] As a further improvement of this utility model, handles are symmetrically arranged on both sides of the base plate corresponding to the guide cylinder.

[0009] As a further improvement of this utility model, the through hole of the base plate is a round hole.

[0010] As a further improvement of this utility model, a rubber pad is provided on the bottom surface of the base plate.

[0011] The technical advantages of this invention are as follows: This invention features a reasonable and ingenious structure, specifically addressing the problem of hot air overflow during mold preheating to reduce the temperature difference between the casting and the mold before pouring. By setting a fixing device to secure the hot air pipe, it ensures that the hot air pipe will not detach when blowing hot air into the mold cavity, and that the incoming air from the hot air pipe will not overflow, thus ensuring reliable and efficient drying of the mold cavity. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0013] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0014] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0015] Figure 1 The components include a base plate 1, a handle 2, a guide tube 3, a hot air duct 4, a sealing ring 5, a positioning pin 6, and a rubber pad 7.

[0016] like Figure 1 As shown, this utility model is a fixing device for the air inlet of a hot air duct for casting, including a base plate 1. A guide cylinder 3 is welded to one side surface of the base plate 1, and the guide cylinder 3 is coaxially arranged with the through hole of the base plate 1. The guide cylinder 3 is used to pass through the hot air duct 4 to position the hot air duct 4.

[0017] Furthermore, in order to ensure that no hot air leakage occurs during the hot air duct 4, a sealing ring 5 is provided in the groove of the inner wall of the guide cylinder 3, and positioning pins 6 are respectively provided on the bottom surface of both ends of the base plate 1 along the length direction.

[0018] It is understandable that, in order to fix the position of the base plate 1 during use, the positioning pins 6 at either end of the base plate 1 along the length direction are evenly distributed along the width direction of the base plate 1.

[0019] In practice, the positioning pin 6 has a diameter of 5-8mm and a length of 20-30mm. The positioning pin 6 of the above specifications can reliably position the base plate 1 without damaging the coating on the sand mold surface, thus preventing hot air from blowing slag into the mold cavity.

[0020] Furthermore, handles 2 are symmetrically arranged on both sides of the base plate 1 corresponding to the guide cylinder 3, so as to facilitate and smoothly move the base plate 1 reliably.

[0021] Understandably, in order to ensure a reliable sealing effect, the through hole of the base plate 1 is a round hole. When the hot air pipe is installed in the hot air pipe 4 and passes through the through hole of the base plate 1, it can effectively ventilate and fix the pipe.

[0022] A rubber pad 7 is provided on the bottom surface of the base plate 1. The rubber pad 7 ensures that the present invention makes flat and reliable contact with the surface of the sand mold. The rubber pad 7 surrounds the outside of the through hole of the base plate 1.

[0023] like Figure 1 As shown, the structure of this utility model is reasonable and ingenious. It is specifically designed to address the problem that hot air blowing into the mold cavity can easily escape from the air inlet, causing hot air to overflow and potentially resulting in incomplete drying inside the mold cavity and defects on the product surface. Using this utility model can effectively overcome the above-mentioned technical problems.

[0024] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fixing device for the air inlet of a hot air duct used in casting, characterized in that: Includes a base plate (1), and a guide cylinder (3) is welded to one side surface of the base plate (1). The guide cylinder (3) is coaxially arranged with the through hole of the base plate (1). A sealing ring (5) is provided in the groove of the inner wall of the guide tube (3), and positioning pins (6) are provided on the bottom surfaces of both ends of the base plate (1) along the length direction.

2. The hot air duct inlet fixing device for casting as described in claim 1, characterized in that: The positioning pins (6) at any end of the base plate (1) along the length direction are evenly distributed along the width direction of the base plate (1).

3. The hot air duct inlet fixing device for casting as described in claim 1 or 2, characterized in that: The positioning pin (6) has a diameter of 5-8 mm and a length of 20-30 mm.

4. The hot air duct inlet fixing device for casting as described in claim 1, characterized in that: Handles (2) are symmetrically arranged on both sides of the base plate (1) corresponding to the guide cylinder (3).

5. The hot air duct inlet fixing device for casting as described in claim 1, characterized in that: The through hole of the base plate (1) is a round hole.

6. The hot air duct inlet fixing device for casting as described in claim 1, characterized in that: A rubber pad (7) is provided on the bottom surface of the base plate (1).

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