High-voltage power transmission open-circuit conductor core box mold

Abstract

The utility model belongs to the technical field of core box molds, and discloses a high-voltage power transmission open circuit conductor core box mold which comprises an upper mold and a lower mold, a positioning column is arranged on the lower mold, a positioning hole matched with the positioning column is formed in the upper mold, the upper mold and the lower mold are closed to form a cavity and a sand inlet communicated with the cavity, an upper heating pipe is arranged in the upper mold, and a lower heating pipe is arranged in the lower mold. A lower heating pipe is arranged in the lower die, the upper heating pipe is located above the cavity, the lower heating pipe is located below the cavity, an ejector rod is arranged on the lower die in a sliding mode, and the ejector rod is connected with an ejector plate. According to the high-voltage power transmission open-circuit conductor core box mold provided by the utility model, precoated sand is injected into the cavity of the core box mold through a core shooter, and then the mold is heated through the upper heating pipe and the lower heating pipe, so that the heating efficiency is high, and the heating is uniform.

Description

Technical Field

[0001] The utility model belongs to the technical field of core box molds, and in particular relates to a core box mold for a high-voltage power transmission circuit breaker conductor. Background Art

[0002] Before producing a high-voltage power transmission circuit breaker conductor, it is necessary to manufacture a sand core through a core box mold, and then use the manufactured sand core to manufacture a high-voltage power transmission circuit breaker conductor through an external mold. When the core box mold is working, the coated sand is injected into the cavity of the core box mold through a core shooter, and heated to form after filling. In the process of realizing the utility model, the inventor found that there are at least the following problems in the prior art: the prior art uses a jet head to ignite and then heat the core box mold, and the heating effect is uneven, which affects the quality of the sand core. Utility Model Content

[0003] The utility model aims to solve the above technical problems at least to a certain extent. To this end, the utility model aims to provide a high-voltage power transmission circuit breaker conductor core box mold.

[0004] The technical solution adopted by the utility model is:

[0005] A high-voltage power transmission circuit breaker conductor core box mold comprises an upper mold and a lower mold, the lower mold is provided with a positioning column, the upper mold is provided with a positioning hole matching the positioning column, the upper mold and the lower mold are closed to form a cavity and a sand inlet connected to the cavity, an upper heating tube is provided inside the upper mold, and a lower heating tube is provided inside the lower mold, the upper heating tube is located above the cavity, and the lower heating tube is located below the cavity, and an ejector rod is slidably provided on the lower mold, and the ejector rod is connected to an ejection plate.

[0006] Preferably, the upper mold is provided with an upper mold cavity and an upper sand inlet channel connected to the upper mold cavity, the lower mold is provided with a lower mold cavity and a lower sand inlet channel connected to the lower mold cavity, the upper mold cavity and the lower mold cavity are closed to form a mold cavity, and the upper sand inlet channel and the lower sand inlet channel are closed to form a sand inlet. The upper mold cavity and the lower mold cavity are symmetrically arranged, and the upper sand inlet channel and the lower sand inlet channel are symmetrically arranged. The ejector includes a plurality of ejector rods, and a part of the ejector rods is arranged through the lower mold cavity.

[0007] Preferably, two lower support plates are provided at the bottom of the lower mold, a lower pressing plate is provided at the bottom of each lower support plate, and the ejection plate is located between the two lower support plates.

[0008] Preferably, two upper support plates are provided on the top of the upper mold, and an upper pressing plate is provided on the top of each upper support plate.

[0009] Preferably, the upper heating tube and the lower heating tube are both arranged along the length direction of the cavity, at least two upper heating tubes arranged in parallel are arranged in the upper mold, and at least three lower heating tubes arranged in parallel are arranged in the lower mold.

[0010] The beneficial effects of the utility model are:

[0011] The high-voltage power transmission circuit breaker conductor core box mold provided by the utility model injects coated sand into the cavity of the core box mold through a core shooter, and then heats the mold through an upper heating tube and a lower heating tube. The heating efficiency is high and the heating is uniform, so that the quality of the sand core after the coated sand is solidified and formed meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a high voltage power transmission circuit breaker conductor core box mold of the utility model.

[0013] Figure 2 It is a schematic diagram of the upper die of the utility model.

[0014] Figure 3 It is a schematic diagram of the lower die of the utility model.

[0015] In the figure: 1-upper mold; 2-lower mold; 3-positioning column; 4-positioning hole; 5-sand inlet; 6-upper heating tube; 7-lower heating tube; 8-ejector rod; 9-ejector plate; 10-upper cavity; 11-upper sand inlet channel; 12-lower cavity; 13-lower sand inlet channel; 14-lower support plate; 15-lower pressure plate; 16-upper support plate; 17-upper pressure plate. DETAILED DESCRIPTION

[0016] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. The components of the embodiments of the present invention generally described and shown in the accompanying drawings herein can be arranged and designed in a variety of different configurations.

[0017] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it 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 or an indirect connection through an intermediate medium, or it can be the internal connection of two elements.

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] like Figures 1 to 3As shown, the high-voltage power transmission circuit breaker conductor core box mold of this embodiment includes an upper mold 1 and a lower mold 2, the lower mold 2 is provided with two cylindrical positioning columns 3, the upper mold 1 is provided with two circular positioning holes 4 matching the positioning columns 3, the upper mold 1 is provided with an upper cavity 10 and an upper sand inlet channel 11 connected to the upper cavity 10, the lower mold 2 is provided with a lower cavity 12 and a lower sand inlet channel 13 connected to the lower cavity 12, the upper cavity 10 and the lower cavity 12 are symmetrically arranged, the upper sand inlet channel 11 and the lower sand inlet channel 13 are symmetrically arranged, after the upper mold 1 and the lower mold 2 are closed, the positioning columns 3 are located in the positioning holes 4, at the same time, the upper cavity 10 and the lower cavity 12 are closed to form a cavity, the upper sand inlet channel 11 and the lower sand inlet channel 13 are closed to form a sand inlet port 5, and the core shooting machine can inject coated sand into the cavity through the sand inlet port 5.

[0020] An upper heating tube 6 is provided inside the upper mold 1, and a lower heating tube 7 is provided inside the lower mold 2. The upper heating tube 6 is located above the cavity, and the lower heating tube 7 is located below the cavity. The upper heating tube 6 and the lower heating tube 7 are both arranged along the length direction of the cavity. Two parallel upper heating tubes 6 are provided in the upper mold 1, and three parallel lower heating tubes 7 are provided in the lower mold 2. The mold is heated simultaneously by the upper heating tube 6 and the lower heating tube 7, and the heating is uniform.

[0021] A push rod 8 is slidably provided on the lower mold 2, and the push rod 8 is connected to the ejection plate 9. The push rod 8 includes multiple rods, and a part of the push rods 8 is arranged through the lower mold cavity 12. After the coated sand is solidified and formed, the push plate 9 is pushed to drive the push rod 8 to move, so that the upper mold 1 can be pushed and the sand core can be pushed out.

[0022] Two lower support plates 14 are provided at the bottom of the lower mold 2, a lower pressing plate 15 is provided at the bottom of each lower support plate 14, and the ejector plate 9 is located between the two lower support plates 14. Two upper support plates 16 are provided at the top of the upper mold 1, and an upper pressing plate 17 is provided at the top of each upper support plate 16.

[0023] The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. A high voltage power transmission circuit breaker conductor core box mold, characterized in that: The invention comprises an upper die (1) and a lower die (2), wherein a positioning column (3) is provided on the lower die (2), and a positioning hole (4) matching the positioning column (3) is provided on the upper die (1). The upper die (1) and the lower die (2) are closed to form a cavity and a sand inlet (5) connected to the cavity. An upper heating tube (6) is provided inside the upper die (1), and a lower heating tube (7) is provided inside the lower die (2). The upper heating tube (6) is located above the cavity, and the lower heating tube (7) is located below the cavity. A push rod (8) is slidably provided on the lower die (2), and the push rod (8) is connected to an ejection plate (9).

2. The high voltage power transmission circuit breaker conductor core box mold according to claim 1, characterized in that: The upper mold (1) is provided with an upper mold cavity (10) and an upper sand inlet channel (11) connected to the upper mold cavity (10); the lower mold (2) is provided with a lower mold cavity (12) and a lower sand inlet channel (13) connected to the lower mold cavity (12); the upper mold cavity (10) and the lower mold cavity (12) are closed to form a mold cavity; the upper sand inlet channel (11) and the lower sand inlet channel (13) are closed to form a sand inlet port (5).

3. The high voltage power transmission circuit breaker conductor core box mold according to claim 2, characterized in that: The upper mold cavity (10) and the lower mold cavity (12) are symmetrically arranged, and the upper sand feeding channel (11) and the lower sand feeding channel (13) are symmetrically arranged.

4. The high voltage transmission circuit breaker conductor core box mold according to claim 2, characterized in that: The ejector rods (8) include a plurality of ejector rods, and a portion of the ejector rods (8) are disposed through the lower mold cavity (12).

5. The high voltage power transmission circuit breaker conductor core box mold according to claim 1, characterized in that: Two lower support plates (14) are provided at the bottom of the lower mold (2), a lower pressing plate (15) is provided at the bottom of each lower support plate (14), and the ejection plate (9) is located between the two lower support plates (14).

6. The high voltage power transmission circuit breaker conductor core box mold according to claim 1, characterized in that: Two upper support plates (16) are provided on the top of the upper mold (1), and an upper pressing plate (17) is provided on the top of each upper support plate (16).

7. The high voltage power transmission circuit breaker conductor core box mold according to claim 1, characterized in that: Said The upper heating tube (6) and the lower heating tube (7) are both arranged along the length direction of the cavity; at least two upper heating tubes (6) arranged in parallel are arranged in the upper mold (1), and at least three lower heating tubes (7) arranged in parallel are arranged in the lower mold (2).

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