Compensator linkage mechanism of die-casting die

Abstract

The utility model discloses a die-casting die compensator linkage mechanism which is characterized by comprising an upper die forming part, an upper die ejection part, two compensators and a pre-pressing device. The upper die forming part consists of an upper die core, an upper die core seat and an upper die ejection part on the upper die core seat; the two compensators are oppositely arranged above the compensator connecting block, and a prepressing device is further arranged on the compensator connecting block between the two compensators.

Description

Technical Field

[0001] This utility model relates to a linkage mechanism for a die-casting mold compensator. Background Technology

[0002] Currently, die-casting machines use a single compensator structure during the die-casting process. However, the single compensator in the die-casting machine has the problem of insufficient force supply, which causes uneven force on the end face of the iron core. This can lead to aluminum overflow from the end face of the iron core during the die-casting process, increasing the chance of product scrap and resulting in high production costs. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a die-casting mold compensator linkage mechanism that eliminates aluminum overflow at the iron core end face.

[0004] The technical solution for realizing this utility model is as follows:

[0005] A die-casting mold compensator linkage mechanism includes an upper mold forming part, an upper mold ejection part, two compensators, and a pre-pressing device; the upper mold forming part consists of an upper mold core, an upper mold core seat, and an upper mold ejection part on the upper mold core seat; the two compensators are arranged opposite each other above the compensator connecting block, and the compensator connecting block between the two compensators is also provided with a pre-pressing device.

[0006] The upper mold ejection section includes a push rod rear plate and a push rod front plate mounted on the upper mold core seat; the push rod rear plate is equipped with a push rod and a push tube.

[0007] The pre-compression device includes a lifting elastic element installed on the compensator telescopic head, a pre-compression block fitted on the top of the lifting elastic element, and a pre-compression spring fitted on the lifting elastic element between the pre-compression block and the compensator telescopic head.

[0008] The lifting elastic element is located on the perpendicular bisector of the line connecting the two compensators.

[0009] The compensator telescopic head is in the shape of an isosceles trapezoid, and all four corners are rounded.

[0010] The compensator telescopic head has outwardly protruding semi-circular arcs at both sides where the compensating connecting parts are installed.

[0011] The above technical solutions solve the problem of insufficient power supply from a single compensator in the die-casting machine; eliminate aluminum overflow from the iron core end face, greatly reducing product scrap; the cavity sleeve assembly and the upper and lower mold assembly adopt conical precision positioning to ensure mold accuracy; product handling is convenient, and production efficiency is increased by 30%. Attached Figure Description

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

[0013] Figure 2This is a three-dimensional structural diagram of the present invention;

[0014] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 4 This is a top view of the compensator structure of this utility model;

[0016] In the attached diagram, 1 is the upper mold core, 2 is the upper mold core seat, 3 is the pre-compression block, 4 is the pre-compression spring, 5 is the lifting elastic element, 6 is the compensator telescopic head, 7 is the push tube, 8 is the push rod rear plate, 9 is the compensator connecting block, 10 is the push rod, 11 is the push rod front plate, 12 is the upper mold seat, 13 is the external machine compensator body, and 14 is the compensator pad block. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] See Figure 1 The schematic diagram of this application shows a die-casting mold compensator linkage mechanism, including an upper mold forming part, an upper mold ejection part, two compensators 14, and a pre-pressing device. The upper mold forming part consists of an upper mold core 1, an upper mold core seat 2, and an upper mold ejection part on the upper mold core seat. The two compensators are arranged opposite each other above the compensator connecting block 9, and a pre-pressing device is also provided on the compensator connecting block between the two compensators. The two compensators of the machine are connected to the upper mold part of the mold through compensator pads. The pre-pressing device compensates for the eccentricity of the compensators when the mold is closed. The compensator ejection telescopic head is inserted into the ejection piston countersunk hole and rests on the compensator pad, and is connected to the ejection structure through the compensator connecting block and drives it to move downward.

[0019] The upper mold ejection section includes an upper mold base mounted on an upper mold core seat, which has a ejector rod rear plate 8 and an ejector rod front plate 11; the ejector rod 10 and a push tube are installed inside the ejector rod rear plate. The compensator telescopic head drives the compensator connecting block to move downward through the compensator pad block, thereby causing the ejector rod and push tube 7 to move together to the top surface of the upper mold core pressing down on the workpiece (iron core).

[0020] The pre-compression device includes a lifting elastic element 5 installed on the compensator telescopic head, a pre-compression block 3 fitted on the top of the lifting elastic element, and a pre-compression spring 4 fitted on the lifting elastic element between the pre-compression block and the compensator telescopic head. When the upper die core is pressed down onto the workpiece, the upper die core will move upward due to the upward force of the workpiece. During the upward movement of the ejector rod and the ejector rod front plate, the pre-compression block of the pre-compression device is compressed due to its upward contact with the external machine. At the same time, the compensator telescopic head of the external machine also exerts a downward force. Since the pre-compression device and the two compensator pads are in a triangular distribution structure, the downward force on the compensator connecting block is also a relatively stable triangular force structure, thereby achieving eccentric compensation of the compensator.

[0021] The lifting elastic element is located on the vertical bisector of the line connecting the two compensators. This ensures that the preload device and the two compensating connecting parts are triangularly distributed, and also provides good eccentric compensation on the vertical bisector.

[0022] The compensator telescopic head is in the shape of an isosceles trapezoid, and all four corners are rounded.

[0023] The compensator's telescopic head has outward-protruding semi-circular arc-shaped components on both sides where the compensating connection parts are installed. This outward-protruding semi-circular arc-shaped structure provides greater stability.

[0024] A rotor die-casting machine includes an upper mold, a lower mold, and a die-casting mold cavity splitting mechanism, the die-casting mold cavity splitting mechanism being located between the upper mold and the lower mold; two die-casting mold compensator linkage mechanisms are arranged opposite to each other inside the upper mold. The die-casting mold cavity splitting mechanism has been disclosed in patent No. ZL201920433030.X, and will not be elaborated further here.

Claims

1. A linkage mechanism for a die-casting mold compensator, characterized in that, It includes an upper mold forming part, an upper mold ejection part, two compensators, and a pre-pressing device; the upper mold forming part consists of an upper mold core, an upper mold core seat, and an upper mold ejection part on the upper mold core seat; the two compensators are arranged opposite each other above the compensator connecting block, and a pre-pressing device is also provided on the compensator connecting block between the two compensators.

2. The linkage mechanism of a die-casting mold compensator according to claim 1, characterized in that, The upper mold ejection section includes a push rod rear plate and a push rod front plate mounted on the upper mold core seat; the push rod rear plate is equipped with a push rod and a push tube.

3. The linkage mechanism of a die-casting mold compensator according to claim 1, characterized in that, The pre-compression device includes a lifting elastic element installed on the compensator telescopic head, a pre-compression block fitted on the top of the lifting elastic element, and a pre-compression spring fitted on the lifting elastic element between the pre-compression block and the compensator telescopic head.

4. The linkage mechanism of a die-casting mold compensator according to claim 3, characterized in that, The lifting elastic element is located on the perpendicular bisector of the line connecting the two compensators.

5. The linkage mechanism of a die-casting mold compensator according to claim 3, characterized in that, The compensator telescopic head is in the shape of an isosceles trapezoid, and all four corners are rounded.

6. The linkage mechanism of a die-casting mold compensator according to claim 3, characterized in that, The compensator telescopic head has outwardly protruding semi-circular arcs at both sides where the compensating connecting parts are installed.

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