Crankshaft pulley aluminum casting die for vehicle

Abstract

The utility model belongs to the technical field of dies, and discloses a vehicle crankshaft pulley aluminum casting die which comprises an upper die and a lower die, a left side die and a right side die are arranged between the upper die and the lower die, the left side die and the right side die are closed to form a main runner and a product forming cavity, an insert is arranged in the product forming cavity, and a dead head connected with the product forming cavity is arranged on the upper die. And a cross gate is arranged on the lower die, is respectively connected with the bottom of the main runner and the bottom of the product forming cavity, and is of a symmetrical structure. The aluminum casting mold for the crankshaft pulley for the vehicle is provided with the cross gate with a symmetrical structure, the cross gate is used for feeding from the bottom of a product, the feeding consistency, the slag shielding property and the symmetry of the product are better, and the dynamic balance requirement of the product is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to an aluminum casting mold for a crankshaft pulley for a vehicle. Background Art

[0002] like Figure 1 The product 100 shown is an aluminum casting for a crankshaft pulley for a vehicle. The product is roughly annular and has a belt groove on the outer circumference. The product has high requirements for dynamic balance and requires that there should not be any slag pore defects inside the belt groove of the aluminum casting. The existing mold has defects in the dynamic balance control and slag pore control of the product, so a new mold needs to be designed. 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 crankshaft pulley aluminum casting mold for a vehicle.

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

[0005] A vehicle crankshaft pulley aluminum casting mold comprises an upper mold and a lower mold, a left mold and a right mold are arranged between the upper mold and the lower mold, the left mold and the right mold are closed to form a main flow channel and a product molding cavity, an insert is arranged in the product molding cavity, a riser connected to the product molding cavity is arranged on the upper mold, and a cross runner is arranged on the lower mold, the cross runners respectively connect the bottom of the main flow channel and the bottom of the product molding cavity, and the cross runners are symmetrical structures.

[0006] Preferably, the runner is arc-shaped, and is connected to the bottom of the product molding cavity through a plurality of connecting ports.

[0007] Preferably, the top surface of the left mold contacts the bottom surface of the upper mold, the bottom surface of the left mold contacts the top surface of the lower mold, the top surface of the right mold contacts the bottom surface of the upper mold, and the bottom surface of the right mold contacts the top surface of the lower mold.

[0008] Preferably, the left mold and the right mold are symmetrically arranged.

[0009] Preferably, the left mold and the right mold are provided with a feeding cylinder connected to the main channel.

[0010] Preferably, a riser tube connected to the riser is provided on the upper die.

[0011] The beneficial effects of the utility model are:

[0012] The automotive crankshaft pulley aluminum casting mold provided by the utility model has a symmetrically structured cross runner, the cross runner is fed from the bottom of the product, the product feeding consistency, slag shielding and symmetry are relatively good, and the dynamic balance requirements of the product are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the utility model product.

[0014] Figure 2 It is a stereoscopic diagram of a crankshaft pulley aluminum casting mold for a vehicle of the utility model.

[0015] Figure 3 It is a cross-sectional view of a crankshaft pulley aluminum casting mold for a vehicle of the utility model.

[0016] Figure 4 It is a schematic diagram of the horizontal runner of the utility model.

[0017] Figure 5 It is a schematic diagram of the product blank of the utility model.

[0018] In the figure: 1-upper mold; 2-lower mold; 3-left mold; 4-right mold; 5-main channel; 6-insert; 7-riser; 8-cross runner; 9-connecting port; 10-feeding barrel; 11-feeding port; 12-riser barrel; 100-product. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] like Figures 2 to 4 As shown, a vehicle crankshaft pulley aluminum casting mold of the present embodiment mainly includes an upper mold 1, a lower mold 2, a left mold 3 and a right mold 4, wherein the upper mold 1 and the lower mold 2 are arranged in parallel, the left mold 3 and the right mold 4 are both arranged between the upper mold 1 and the lower mold 2, and the top surface of the left mold 3 contacts the bottom surface of the upper mold 1, the bottom surface of the left mold 3 contacts the top surface of the lower mold 2, the top surface of the right mold 4 contacts the bottom surface of the upper mold 1, and the bottom surface of the right mold 4 contacts the top surface of the lower mold 2.

[0023] The left mold 3 and the right mold 4 are symmetrically arranged. The left mold 3 and the right mold 4 are closed to form a main channel 5 and a product molding cavity. A feed barrel 10 connected to the main channel 5 is provided on the left mold 3 and the right mold 4. A feed port 11 penetrating through the feed barrel 10 is connected to the main channel 5.

[0024] An insert 6 is provided in the product forming cavity, the bottom of the insert 6 is connected to the lower mold 2, a riser 7 connected to the product forming cavity is provided on the upper mold 1, a riser tube 12 connected to the riser 7 is provided on the upper mold 1, and a through hole penetrating the riser tube 12 is connected to the riser 7.

[0025] The lower mold 2 is provided with a runner 8, which connects the bottom of the main channel 5 and the bottom of the product molding cavity respectively. The runner 8 is a symmetrical structure, forming a "Haff-type" branch channel. Figure 4 As shown, the runner 8 is arc-shaped and is connected to the bottom of the product molding cavity through multiple connecting ports 9.

[0026] When the aluminum casting mold for the crankshaft pulley for a vehicle is used, the molten aluminum alloy is poured into the main flow channel 5 from the feed port 11, passes through the runner 8, enters the product molding cavity and the riser, and finally forms a product blank such as Figure 5 As shown. The feed port is convenient for distributing the feed, the feed is consistent, the runner is symmetrical, the internal structure of the formed product is symmetrical, and it can fully meet the initial requirements of the dynamic balance of the blank. The runner is a bottom-injection feeder with obvious slag shielding effect, ensuring the quality requirements of the product processing surface.

[0027] 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 crankshaft pulley aluminum casting mold for a vehicle, characterized in that: The invention comprises an upper die (1) and a lower die (2), wherein a left die (3) and a right die (4) are arranged between the upper die (1) and the lower die (2), wherein the left die (3) and the right die (4) are closed to form a main channel (5) and a product forming cavity, wherein an insert (6) is arranged in the product forming cavity, wherein a riser (7) connected to the product forming cavity is arranged on the upper die (1), and a runner (8) is arranged on the lower die (2), wherein the runner (8) respectively connects the bottom of the main channel (5) and the bottom of the product forming cavity, and the runner (8) is a symmetrical structure.

2. The aluminum casting mold for a crankshaft pulley for a vehicle according to claim 1, characterized in that: The runner (8) is arc-shaped and is connected to the bottom of the product molding cavity via a plurality of connection ports (9).

3. The aluminum casting mold for a crankshaft pulley for a vehicle according to claim 1 or 2, characterized in that: The top surface of the left mold (3) contacts the bottom surface of the upper mold (1), the bottom surface of the left mold (3) contacts the top surface of the lower mold (2), the top surface of the right mold (4) contacts the bottom surface of the upper mold (1), and the bottom surface of the right mold (4) contacts the top surface of the lower mold (2).

4. The aluminum casting mold for a crankshaft pulley for a vehicle according to claim 1 or 2, characterized in that: The left mold (3) and the right mold (4) are symmetrically arranged.

5. The aluminum casting mold for a crankshaft pulley for a vehicle according to claim 1, characterized in that: The left mold (3) and the right mold (4) are provided with a feeding cylinder (10) connected to the main channel (5).

6. The aluminum casting mold for a crankshaft pulley for a vehicle according to claim 1, characterized in that: The upper die (1) is provided with a riser tube (12) connected to the riser (7).

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