Injection mold for improving single-face injection molding of aluminum bar

Abstract

An injection mold for improving single-face injection molding of an aluminum bar comprises a lower mold, a lower mold groove is formed in the top side of the lower mold, the groove bottom of the lower mold groove is of a structure with the high middle and the two low sides, and the lower mold groove is used for containing the aluminum bar; an upper mold groove is formed in the bottom side of the upper mold, pressing blocks are arranged in the upper mold groove and on the two sides of the upper mold groove, the pressing blocks are configured to be capable of bending the two sides of the aluminum row in the mold closing state, and the upper mold is further provided with an injection molding hole communicated with the upper mold groove. According to the injection mold for improving single-face injection molding of the aluminum row, the pressing blocks are arranged in the upper mold groove, the two sides of the aluminum row are bent through the pressing blocks during mold closing, then the top side of a plate is wrapped with a plastic part through the injection molding technology, plastic can shrink in the cooling process, the two sides of the aluminum row are pulled upwards, and the aluminum row is formed. The state before deformation is recovered; the mold can avoid the problem of damage and cracking of plastic in the subsequent shaping step, improves the product yield, and is suitable for popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of single-sided injection molding of aluminum bars, in particular to an injection mold for improving the single-sided injection molding of aluminum bars. Background Art

[0002] New energy battery packs require single-sided plastic-coated conductive busbars, typically formed by single-sided injection molding of sheet metal. The plastic shrinks upon cooling, causing the two sides of the sheet metal to bend toward the center. Due to the high flatness requirements of the busbars, they often require shaping, using a pressurized shaping mechanism. This pressure process can easily cause cracks between the plastic and the sheet metal, or even break the plastic, reducing the busbar's production yield and efficiency.

[0003] Therefore, in view of the shortcomings of the existing technology, it is necessary to design an injection mold that improves the single-sided injection molding of the aluminum bar to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the present invention aims to provide an injection mold for improving the single-sided injection molding of aluminum bars.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a technical solution: an injection mold for improving the single-sided injection molding of aluminum bars, comprising:

[0006] A lower die, wherein a lower die groove is provided on the top side of the lower die, and the bottom of the lower die groove is formed into a structure with a high middle and low sides, and the lower die groove is used to place the aluminum bar;

[0007] The upper mold has an upper mold groove on its bottom side, and pressure blocks are provided on both sides of the upper mold groove. The pressure blocks are configured to bend both sides of the aluminum bar in the mold closing state, and the upper mold is also provided with an injection hole connected to the upper mold groove.

[0008] The preferred technical solution is that the pressing block is formed into a strip structure and is arranged corresponding to the non-injection molding area of ​​the edge of the aluminum row.

[0009] The preferred technical solution is: a circulation cavity is provided in the upper mold, and the circulation cavity is connected to an external cooling water circulation system.

[0010] The preferred technical solution is that the height difference between the middle and both sides of the bottom of the lower die groove is 1-2 mm.

[0011] Due to the application of the above technical solution, the utility model has the following beneficial effects:

[0012] The utility model proposes an injection mold for improving the single-sided injection molding of aluminum bars. A pressing block is arranged in the upper mold groove. When the mold is closed, the two sides of the aluminum bar are bent by the pressing block. Then, a plastic part is wrapped on the top side of the plate through the injection molding process. The plastic shrinks during the cooling process, causing the two sides of the aluminum bar to be pulled upward and then restored to the state before deformation. The mold can avoid the problem of damage and cracking of the plastic in the subsequent shaping steps, improve the product yield, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic cross-sectional view of the mold involved in the present utility model. DETAILED DESCRIPTION

[0014] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0015] See also Figure 1 . It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0016] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, indirect connections via an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0017] Example:

[0018] like Figure 1As shown, according to an overall technical concept of the utility model, an injection mold for improving the single-sided injection molding of aluminum bars is provided, comprising:

[0019] The lower die 1 has a lower die groove 11 on the top side. The bottom of the lower die groove 11 is formed into a structure with a high middle and low sides. The lower die groove 11 is used to place the aluminum bar;

[0020] The upper mold 2 has an upper mold groove 21 on its bottom side, and pressure blocks 22 are provided on both sides of the upper mold groove 21. The pressure blocks 22 are configured to bend both sides of the aluminum bar 100 in the mold closing state. The upper mold 2 is also provided with an injection hole 23 connected to the upper mold groove.

[0021] like Figure 1 As shown, in an exemplary embodiment of the present invention, the pressing block 22 is configured as a strip structure and is disposed corresponding to the edge non-injection area of ​​the aluminum bar 100 .

[0022] like Figure 1 As shown, in an exemplary embodiment of the present invention, a circulation cavity (not shown) is provided in the upper mold 2, and the circulation cavity is connected to an external cooling water circulation system.

[0023] like Figure 1 As shown, in an exemplary embodiment of the present invention, the height difference between the middle and both sides of the bottom of the lower die groove 11 is 1-2 mm.

[0024] Therefore, the utility model has the following advantages:

[0025] The utility model proposes an injection mold for improving the single-sided injection molding of aluminum bars. A pressing block is arranged in the upper mold groove. When the mold is closed, the two sides of the aluminum bar are bent by the pressing block. Then, a plastic part is wrapped on the top side of the plate through the injection molding process. The plastic shrinks during the cooling process, causing the two sides of the aluminum bar to be pulled upward and then restored to the state before deformation. The mold can avoid the problem of damage and cracking of the plastic in the subsequent shaping steps, improve the product yield, and is suitable for popularization and use.

[0026] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical concepts disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. An injection mold for improving single-sided injection molding of aluminum bars, characterized in that: include: A lower die, wherein a lower die groove is provided on the top side of the lower die, and the bottom of the lower die groove is formed into a structure with a high middle and low sides, and the lower die groove is used to place the aluminum bar; The upper mold has an upper mold groove on its bottom side, and pressure blocks are provided on both sides of the upper mold groove. The pressure blocks are configured to bend both sides of the aluminum bar in the mold closing state. The upper mold is also provided with an injection hole connected to the upper mold groove.

2. The injection mold for improving single-sided injection molding of aluminum bars according to claim 1, characterized in that: The pressing block is formed into a strip structure and is arranged corresponding to the non-injection molding area of ​​the edge of the aluminum row.

3. The injection mold for improving single-sided injection molding of aluminum bars according to claim 1, characterized in that: A circulation cavity is provided in the upper mold, and the circulation cavity is connected to an external cooling water circulation system.

4. The injection mold for improving single-sided injection molding of aluminum bars according to claim 1, characterized in that: The height difference between the middle and both sides of the bottom of the lower die groove is 1-2 mm.

Images