Centrifugal pump impeller casting machining equipment

Abstract

The utility model discloses centrifugal pump impeller casting processing equipment which comprises a pressing block and a mold, the lower end of the pressing block is an inclined plane and is used for pushing molding sand in the pressing block and enabling the molding sand to approach the edge of the mold after the pressing block enters the mold, and a frame-shaped pressing block is sleeved on the outer side wall of the pressing block and is used for compacting the molding sand between the pressing block and the mold. Through the arranged pressing block and the inclined surface of the pressing block, molding sand placed in the mold can be driven to downwards push the molding sand when the first telescopic component extends, so that the molding sand moves towards the edge of the mold, the molding sand is limited through the pressing block, and then through the extension of the second telescopic component, the frame-shaped pressing block compacts the formation between the pressing block and the mold; and in the compaction process of the molding sand, the molding sand moves between the pressing block and the mold, so that the compaction surface of the edge is smoother.

Description

TECHNICAL FIELD

[0001] The utility model relates to foundry technology field, and the specific field is a centrifugal pump impeller foundry processing equipment. BACKGROUND

[0002] Centrifugal pump is the pump that transports liquid by centrifugal force produced when impeller rotates, and the impeller is complex in shape and is usually made by casting, and the impeller is made by pouring molten metal into the cavity of the sand mold prepared first, and then hardening after the molten metal cools.

[0003] Through the search, the centrifugal pump impeller foundry processing equipment of patent No. CN117600416B, wherein the sand in the four corners of the mold is pre-compacted by the pressing block, and the sand inside the mold is compacted by the pressing plate and the pressing block, which is beneficial to improve the structural stability of the four corners of the sand block and greatly reduce the risk of cracking of the sand block corner, and at the same time, the sand in the four corners of the mold is horizontally compacted by the pushing block, and the sand is vertically compacted by the downward movement of the pressing block, which is beneficial to improve the pre-compaction effect of the sand in the four corners of the mold;

[0004] But the overall structure is more complicated, and the sand will move without being limited during the four-corner compaction, so the compaction effect is not obvious, and therefore a centrifugal pump impeller foundry processing equipment is proposed, which pre-compacts the sand near the edge of the mold. Utility model content

[0005] The utility model aims at providing a centrifugal pump impeller foundry processing equipment to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a centrifugal pump impeller foundry processing equipment, comprising a pressing block and a mold, the lower end of the pressing block is an inclined surface, which is used to push the sand inside the mold and move close to the edge of the mold after the pressing block enters the mold, the outer wall of the pressing block is provided with a frame-shaped pressing block, which is used to compact the sand between the pressing block and the mold, the pressing block is driven by the first telescopic part installed on its upper end, and the frame-shaped pressing block is driven by the second telescopic part installed on the pressing block.

[0007] Preferably, the upper end of the pressing block is provided with a support plate, and a plurality of second telescopic parts are uniformly installed on the bottom of the support plate, so that the extension end of the second telescopic part is connected with the frame-shaped pressing block vertically.

[0008] Preferably, the angle of the inclined surface at the lower end of the pressing block is 45°.

[0009] Compared with the prior art, the centrifugal pump impeller casting processing equipment has the advantages that the sand in the mold is pushed down by the pressing block to move to the edge of the mold when the first telescopic part is elongated, the sand is compacted by the frame-shaped pressing block between the pressing block and the mold when the second telescopic part is elongated, and the compacting surface of the edge is more flat. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is a whole structure schematic view of the utility model;

[0011] Fig. 2 It is a pressing block and frame-shaped pressing block to sand compacting state structure sectional view of the utility model.

[0012] In the drawing: 1-pressing block, 2-mold, 3-inclined surface, 4-frame-shaped pressing block, 5-first telescopic part, 6-second telescopic part, 7-supporting plate. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0014] Please refer to Figs. 1-2 The utility model provides a technical scheme: a centrifugal pump impeller casting processing equipment, including pressing block 1 and mold 2, the lower end of pressing block 1 is inclined surface 3, for pushing the sand in its inside and moving to the edge of mold 2 after pressing block 1 enters into mold 2, the outer wall of pressing block 1 is equipped with frame-shaped pressing block 4, for the sand between pressing block 1 and mold 2 is compacted, pressing block 1 is driven by the first telescopic part 5 installed on its upper end, frame-shaped pressing block 4 is driven by the second telescopic part 6 installed on pressing block 1.

[0015] The upper end of pressing block 1 is installed with supporting plate 7, and a plurality of second telescopic parts 6 are evenly installed on the bottom of supporting plate 7, so that the extension end of second telescopic part 6 is connected with frame-shaped pressing block 4 perpendicularly.

[0016] The angle of the inclined surface at the lower end of pressing block 1 is 45 °.

[0017] Working principle: first, the sand from the upper end of the mold 2 into its first start first telescopic component 5, the first telescopic component 5 push block 1 to move into the mold 2, the lower end of the block 1 inclined surface 3 when the touch sand, push it to move around, so that the sand is extruded between the block 1 and the mold 2, through the block 1 on the sand limit, then start the second telescopic component 6, multiple second telescopic component 6 start at the same time, push the frame-shaped block 4 on the sand between the block 1 and the mold 2 compaction operation, the sand in the block 1 and the mold 2 between the movement, so as to the edge of the mold compaction.

[0018] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifugal pump impeller casting and processing equipment, comprising a pressing block and a mold, characterized in that: The lower end of the pressure block is inclined, which is used to push the molding sand inside the mold and move it closer to the edge of the mold after the pressure block enters the mold. A frame-shaped pressure block is sleeved on the outer wall of the pressure block, which is used to compact the molding sand between the pressure block and the mold. The pressure block is driven by a first telescopic component installed at its upper end, and the frame-shaped pressure block is driven by a second telescopic component installed on the pressure block.

2. The centrifugal pump impeller casting and processing equipment according to claim 1, characterized in that: A support plate is installed on the upper end of the pressure block, and multiple second telescopic components are evenly installed on the bottom of the support plate, so that the protruding end of the second telescopic component is perpendicularly connected to the frame-shaped pressure block.

3. The centrifugal pump impeller casting and processing equipment according to claim 1, characterized in that: The angle of the inclined surface at the lower end of the pressure block is 45°.

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