Pouring gate structure of double-color injection mold for wireless charging panel of auxiliary instrument panel

Abstract

The sprue structure of the double-shot injection mold for the wireless charging panel of the auxiliary instrument panel comprises a first shot outer frame structure, and a second shot inner frame structure is arranged in the first shot outer frame structure; first injection sprues are arranged on any two opposite sides of the first injection outer frame structure and a connecting side between any two opposite sides, second injection sprues are arranged on all sides of the second injection inner frame structure, and the first injection sprues and the second injection sprues are arranged in a staggered manner; according to the invention, the synchronous and uniform injection molding of the glue solution can be ensured, and the weld line formed by gathering the glue solution is positioned at the corner of the structure, so that the weld line is shortest and hidden, and the aesthetic property of the whole wireless charging panel of the auxiliary instrument panel is further ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile injection molding structural parts and relates to a gate structure of a two-color injection molding mold for a wireless charging panel of a secondary instrument panel. Background Art

[0002] At present, with the popularization of new energy vehicles, on-board wireless charging design has become standard. In order to improve the aesthetics and meet performance requirements, wireless charging panels are mostly formed by two-color injection molding. Two-color injection molding is the process of injecting two different injection molding materials into the same set of molds, thereby realizing a process with two materials and two structures on one product.

[0003] The wireless charging panel of the auxiliary instrument panel is composed of a first shot structure and a second shot structure, wherein the second shot structure is directly exposed to the field of vision of the passengers in the vehicle. Therefore, in order to ensure the aesthetics of the second shot structure, the weld line generated by the collection of glue on the second shot structure needs to be as short and hidden as possible. In the prior art, when performing two-color injection molding, the reasonable arrangement of the gates of the first shot structure and the second shot structure is not reasonably considered, which leads to obvious weld line marks on the second shot structure, affecting the aesthetics of the wireless charging panel of the auxiliary instrument panel.

[0004] Aiming at the problem that obvious weld line marks exist on the second shot structure of the existing wireless charging panel of the auxiliary instrument panel, the present invention discloses a gate structure of a two-color injection mold for the wireless charging panel of the auxiliary instrument panel. Summary of the invention

[0005] The purpose of the present invention is to provide a two-color injection mold gate structure for a wireless charging panel of a sub-instrument panel, which can ensure the synchronous and uniform injection molding of the glue liquid, and make the weld line formed by the glue liquid converge at the corner of the structure, so that the weld line is the shortest and most hidden, thereby ensuring the aesthetics of the overall wireless charging panel of the sub-instrument panel.

[0006] The present invention is achieved through the following technical solutions: A two-color injection mold gate structure for a wireless charging panel of a sub-instrument panel includes a first shot outer frame structure, a second shot inner frame structure is arranged inside the first shot outer frame structure, a first shot gate is arranged on any two opposite sides of the first shot outer frame structure and on the connecting side between any two opposite sides, a second shot gate is arranged on all sides of the second shot inner frame structure, and the first shot gate and the second shot gate are arranged alternately.

[0007] The hard glue material is synchronously injected into the mold through all the first shot gates to obtain the first shot outer frame structure, and then the second shot gates are opened at intervals to inject the soft glue material into the mold at intervals, so that the soft glue material enters different second shot gates at intervals and the weld line formed by the convergence is located in the corner area of ​​the second shot inner frame structure, thereby ensuring that the weld line on the second shot inner frame structure serving as the appearance layer is the shortest.

[0008] In order to better realize the present invention, further, the first shot gate includes a first side gate, a second side gate, and a third side gate. The first side gate and the second side gate are symmetrically arranged on any two opposite sides of the first shot outer frame structure, and the third side gate is arranged on the connecting edge between any two opposite sides of the first shot outer frame structure.

[0009] In order to better realize the present invention, further, the second shot gate includes a first auxiliary gate, a second auxiliary gate, a third auxiliary gate, and a main gate. The main gate is arranged on the opposite side of the second shot inner frame structure and the third side gate, and the third auxiliary gate is arranged on the same side of the second shot inner frame structure and the third side gate. The first auxiliary gate and the second auxiliary gate are arranged on the connecting edge between the opposite side and the same side of the second shot inner frame structure.

[0010] In order to better implement the present invention, further, the first auxiliary gate, the second auxiliary gate, the third auxiliary gate, and the main gate are all arranged at the central position of the side where they are located.

[0011] In order to better implement the present invention, further, a rubber feeding plate is provided on a side of the first auxiliary gate close to the main gate and a side of the second auxiliary gate close to the main gate.

[0012] In order to better implement the present invention, further, the second inner frame structure is made of soft rubber material, and the thickness of each side of the second inner frame structure is greater than or equal to 1.5 mm.

[0013] In order to better implement the present invention, further, a weld line area is provided on the second inner frame structure, and the weld line area is located at the junction of the connecting edge and the same side edge of the second inner frame structure.

[0014] In order to better implement the present invention, further, the first shooting outer frame structure is made of hard plastic material, and the thickness of each side of the first shooting outer frame structure is greater than or equal to 2 mm.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention reasonably arranges the first shot gate on the first shot outer frame structure, reasonably arranges the second shot gate on the second shot inner frame structure, and controls the flow rate and time of glue injection, so that when the second shot inner frame structure is formed, the weld line formed by the glue liquid gathering can be controlled at the corner of the second shot inner frame structure, so that the weld line is the shortest and most hidden, thereby ensuring the aesthetics of the wireless charging panel of the auxiliary instrument panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the gate structure of a two-color injection mold; Figure 2 It is a schematic diagram of the gate on the first shot outer frame structure; Figure 3 Schematic diagram of the gate on the inner frame structure of the second shot.

[0017] Among them: 1-first shot outer frame structure; 2-second shot inner frame structure; 3-first shot gate; 4-second shot gate; 5-weld line area; 31-first side gate; 32-second side gate; 33-third side gate; 41-first auxiliary gate; 42-second auxiliary gate; 43-third auxiliary gate; 44-main gate; A1-first side of outer frame; A2-second side of outer frame; A3-third side of outer frame; A4-fourth side of outer frame; B1-first side of inner frame; B2-second side of inner frame; B3-third side of inner frame; B4-fourth side of inner frame. DETAILED DESCRIPTION

[0018] The following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the present invention explicitly states otherwise, singular forms are also intended to include plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0021] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and the like in the present invention should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0022] Embodiment 1: A two-color injection mold gate structure of a wireless charging panel of a sub-instrument panel of the present embodiment, as shown in Figure 1, includes a first shot outer frame structure 1, a second shot inner frame structure 2 is arranged inside the first shot outer frame structure 1, a first shot gate 3 is arranged on any two opposite sides of the first shot outer frame structure 1, and a connecting side between any two opposite sides, a second shot gate 4 is arranged on all sides of the second shot inner frame structure 2, and the first shot gate 3 and the second shot gate 4 are arranged alternately.

[0023] After the first shot outer frame structure 1 is assembled to the instrument area, it is hidden inside the interior surface, so there is no need to consider the aesthetics of the first shot outer frame structure 1. After the second shot inner frame structure 2 is assembled to the instrument area, it serves as an appearance part, so the aesthetics of the second shot inner frame structure 2 needs to be considered.

[0024] The first shot outer frame structure 1 is a square frame with four sides. First shot gates 3 are provided on any two opposite sides of the first shot outer frame structure 1 and on any two opposite sides connecting sides. The diameters of all first shot gates 3 are the same. An avoidance gap is provided on each side of the first shot outer frame structure 1, and the avoidance gap is used to set the second shot gate 4. Glue is injected into the mold through all the first shot gates 3 synchronously to form the first shot outer frame structure 1. After the first shot outer frame structure 1 is formed, an avoidance gap is opened on each side of the first shot outer frame structure 1, and a second shot gate 4 is set at the avoidance gap.

[0025] The second injection gate 4 is opened at intervals to inject glue into the mold, so that the dissolution line formed by the glue reflux in the mold is located at the corner of the second injection inner frame structure 2 to ensure that the length of the weld line is the shortest.

[0026] Furthermore, the first shooting frame structure 1 is made of hard plastic material, and the thickness of each side of the first shooting frame structure 1 is greater than or equal to 2 mm. Preferably, the first shooting frame structure 1 is made of PC+ABS hard plastic material.

[0027] Furthermore, the second inner frame structure 2 is made of soft rubber material, and the thickness of each side of the second inner frame structure 2 is greater than or equal to 1.5 mm. Preferably, the second inner frame structure 2 is made of TPE soft rubber material.

[0028] Embodiment 2: A dual-color injection mold gate structure for a wireless charging panel of a sub-instrument panel, such as Figure 2 As shown, based on the improvement of Example 1, the first shot gate 3 includes a first side gate 31, a second side gate 32, and a third side gate 33, the first side gate 31 and the second side gate 32 are symmetrically arranged on any two opposite sides of the first shot outer frame structure 1, and the third side gate 33 is arranged on the connecting edge between any two opposite sides of the first shot outer frame structure 1.

[0029] like Figure 2 As shown, the first shot outer frame structure 1 is a square frame structure composed of four sides. For the convenience of explanation, the four sides are named as the first outer frame side A1, the second outer frame side A2, the third outer frame side A3, and the fourth outer frame side A4, wherein the first outer frame side A1 is arranged opposite to the second outer frame side A2, and the third outer frame side A3 is arranged opposite to the fourth outer frame side A4. The first side gate 31 and the second side gate 32 are symmetrically arranged on the first outer frame side A1 and the second outer frame side A2, and the third side gate 33 is arranged on the third outer frame side A3 or the fourth outer frame side A4.

[0030] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0031] Embodiment 3: A dual-color injection mold gate structure for a wireless charging panel of a sub-instrument panel is improved on the basis of Embodiment 1 or 2, such as Figure 3 As shown, the second shot gate 4 includes a first auxiliary gate 41, a second auxiliary gate 42, a third auxiliary gate 43, and a main gate 44. The main gate 44 is arranged on the opposite side of the second shot inner frame structure 2 and the third side gate 33. The third auxiliary gate 43 is arranged on the same side of the second shot inner frame structure 2 and the third side gate 33. The first auxiliary gate 41 and the second auxiliary gate 42 are arranged on the connecting edge between the opposite side and the same side of the second shot inner frame structure 2.

[0032] like Figure 3As shown, the second shot inner frame structure 2 is a square frame structure composed of four sides. For the convenience of explanation, the four sides are named as the first inner frame side B1, the second inner frame side B2, the third inner frame side B3, and the fourth inner frame side B4, wherein the first inner frame side B1 is arranged opposite to the second inner frame side B2, and the third inner frame side B3 is arranged opposite to the fourth inner frame side B4. The first auxiliary gate 41 and the second auxiliary gate 42 are respectively arranged on the first inner frame side B1 and the second inner frame side B2, the third auxiliary gate 43 is arranged on the third inner frame side B3, and the main gate 44 is arranged on the fourth inner frame side B4.

[0033] When performing the second injection molding of the inner frame structure 2, glue is first injected through the main gate 44. When the glue flows through the first auxiliary gate 41 and the second auxiliary gate 42, glue is injected synchronously through the first auxiliary gate 41, the second auxiliary gate 42 and the third auxiliary gate 43. By controlling the injection speed and injection time of the first auxiliary gate 41, the second auxiliary gate 42 and the third auxiliary gate 43, the weld line where the glue from the first auxiliary gate 41 converges is located at the intersection corner of the first side B1 of the inner frame and the third side B3 of the inner frame, and the weld line where the glue from the second auxiliary gate 42 converges is located at the intersection corner of the second side B2 of the inner frame and the third side B3 of the inner frame.

[0034] Furthermore, the first auxiliary gate 41, the second auxiliary gate 42, the third auxiliary gate 43, and the main gate 44 are all arranged at the center of the sides where they are located, thereby ensuring the symmetry of the flow of the glue.

[0035] Furthermore, a glue feeding plate is provided on the side of the first auxiliary gate 41 close to the main gate 44 and on the side of the second auxiliary gate 42 close to the main gate 44. By providing the glue feeding plate, it can be determined whether the glue from the main gate 44 passes through the first auxiliary gate 41 and the second auxiliary gate 42.

[0036] The other parts of this embodiment are the same as those of Embodiment 1 or 2, and thus will not be described in detail.

[0037] Embodiment 4: A dual-color injection mold gate structure for a wireless charging panel of a sub-instrument panel is improved on the basis of any one of embodiments 1-3, such as Figure 1 As shown, a weld line region 5 is provided on the second inner frame structure 2 , and the weld line region 5 is located at the junction of the connecting edge and the same side edge of the second inner frame structure 2 .

[0038] As shown in the figure, the weld line areas 5 on both sides are respectively located at the junction of the first side B1 of the inner frame and the third side B3 of the inner frame, and at the junction of the second side B2 of the inner frame and the third side B3 of the inner frame. This can ensure that the weld line formed in the weld line area 5 is the shortest, and the weld line is located at the corner and is not easily noticeable, thereby ensuring the aesthetics of the second shot inner frame structure 2.

[0039] The other parts of this embodiment are the same as any one of Embodiments 1-3, so they are not described again.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A dual-color injection mold gate structure for a wireless charging panel of a sub-instrument panel, characterized in that: The invention comprises a first shot outer frame structure (1), a second shot inner frame structure (2) is arranged inside the first shot outer frame structure (1), first shot gates (3) are arranged on any two opposite sides of the first shot outer frame structure (1) and on the connecting side between any two opposite sides, second shot gates (4) are arranged on all sides of the second shot inner frame structure (2), and the first shot gates (3) and the second shot gates (4) are arranged alternately.

2. The gate structure of a two-color injection mold for a wireless charging panel of a sub-instrument panel according to claim 1 is characterized in that: The first shot gate (3) comprises a first side gate (31), a second side gate (32), and a third side gate (33); the first side gate (31) and the second side gate (32) are symmetrically arranged on any two opposite sides of the first shot outer frame structure (1); and the third side gate (33) is arranged on a connecting edge between any two opposite sides of the first shot outer frame structure (1).

3. The gate structure of a two-color injection mold for a wireless charging panel of a sub-instrument panel according to claim 2, characterized in that: The second shot gate (4) comprises a first auxiliary gate (41), a second auxiliary gate (42), a third auxiliary gate (43), and a main gate (44); the main gate (44) is arranged on the opposite side of the second shot inner frame structure (2) and the third side gate (33); the third auxiliary gate (43) is arranged on the same side of the second shot inner frame structure (2) and the third side gate (33); the first auxiliary gate (41) and the second auxiliary gate (42) are arranged on the connecting edge between the opposite side and the same side of the second shot inner frame structure (2).

4. The gate structure of a two-color injection mold for a wireless charging panel of a sub-instrument panel according to claim 3 is characterized in that: The first auxiliary gate (41), the second auxiliary gate (42), the third auxiliary gate (43), and the main gate (44) are all arranged at the central position of the side on which they are located.

5. The gate structure of a two-color injection mold for a wireless charging panel of a sub-instrument panel according to claim 4, characterized in that: A rubber feeding plate is provided on a side of the first auxiliary gate (41) close to the main gate (44) and a side of the second auxiliary gate (42) close to the main gate (44).

6. The gate structure of a two-color injection mold for a wireless charging panel of a sub-instrument panel according to claim 5, characterized in that: A weld line area (5) is provided on the second shot inner frame structure (2), and the weld line area (5) is located at the junction of the connecting edge and the same side edge of the second shot inner frame structure (2).

7. A dual-color injection mold gate structure for a wireless charging panel of a sub-instrument panel according to any one of claims 1 to 6, characterized in that: The second inner frame structure (2) is made of soft rubber material, and the thickness of each side of the second inner frame structure (2) is greater than or equal to 1.5 mm.

8. A dual-color injection mold gate structure for a wireless charging panel of a sub-instrument panel according to any one of claims 1 to 6, characterized in that: The first shooting outer frame structure (1) is made of hard plastic material, and the thickness of each side of the first shooting outer frame structure (1) is greater than or equal to 2 mm.

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