Injection mold for automobile P-gear button

Abstract

The utility model relates to an automobile P-gear button injection mold which comprises a first-color injection molding module capable of carrying out injection molding on a base shell and a second-color injection molding module capable of carrying out injection molding on a panel, and the first-color injection molding module comprises a first upper mold and a first lower mold which are oppositely arranged; the second color injection molding module comprises a second upper mold and a second lower mold which are oppositely arranged, a first upper mold core is arranged on the first upper mold, a second upper mold core is arranged on the second upper mold, the second upper mold core is further provided with a detachable P-shaped insert, and the first lower mold and the second lower mold are the same in structure; a lower mold core matched with the first upper mold core to form a base shell forming cavity is arranged on each of the first upper mold and the second upper mold, and the first lower mold with the injection molding base shell is matched with the second upper mold core of the second upper mold to form a panel forming cavity after being interchanged with the vacant second lower mold; and the P-shaped insert also abuts against the surface of the injection molding base shell below and is used for forming a hollow P-shaped character on the injection molding panel. And the 'P' character is directly molded in the injection molding process.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to an injection mold for a P gear button of an automobile. Background Art

[0002] The electronic shift control mechanism assembly is an indispensable part of automobile driving, and the P gear button is an important part of the electronic shift control mechanism assembly. The P gear button has a base shell 1' and a panel 2' on the surface of the base shell 1'. The base shell and the panel are separately injection molded by two sets of molds and then assembled, and then the character P is electroplated on the panel. This product is high-light electroplating, and the processing steps are relatively complicated. Utility Model Content

[0003] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides an injection mold for a P gear button of an automobile, which can directly mold a "P" character during the injection molding process.

[0004] The technical solution of the utility model is: an injection mold for a P gear button of an automobile, comprising a first color injection mold group that can be used for injection molding of a base shell, and a second color injection mold group that can be used for injection molding of a panel, the first color injection mold group comprising a first upper mold group and a first lower mold group that are relatively arranged, the second color injection mold group comprising a second upper mold group and a second lower mold group that are relatively arranged, the first upper mold group and the second upper mold group can synchronously open / close the mold, and the first lower mold group and the second lower mold group can realize position conversion,

[0005] The first upper mold is provided with a first upper mold core, the second upper mold is provided with a second upper mold core, the second upper mold core also has a detachable "P"-shaped insert, the first lower mold and the second lower mold have the same structure, and are both provided with a lower mold core that cooperates with the first upper mold core to form a base shell molding cavity. After the first lower mold with the injection molded base shell is interchanged with the vacant second lower mold, the panel molding cavity is formed by cooperating with the second upper mold core of the second upper mold, and the "P"-shaped insert also contacts the surface of the injection molded base shell below to form a hollow "P" character on the injection molded panel.

[0006] By adopting the above technical solution, a hollow "P" character can be directly formed on the panel during the injection molding process using an injection mold, eliminating the need for laser engraving.

[0007] The mold is designed so that the one-color base shell and the two-color panel are in close contact, and the "P"-shaped inserts can be removed and the trapped air is discharged through the gaps between the inserts, thus avoiding the inability to completely eliminate the weld line between the one-color base shell and the two-color panel due to trapped air.

[0008] Preferably, the mold is also provided with a second color drainage rib, and the second color drainage rib also extends to the corner of the "P" insert. By adding the drainage rib structure, the material flows to the corner of the "P", which promotes better fusion of the two colors, thereby improving the quality of the weld line between the two and improving the efficiency of the early review.

[0009] Preferably, the lower mold core includes a mother seat and child seats on both sides. The child seats are slidably arranged on the lower mold core. After mold closing, the child seats on both sides can be driven to move closer to the mother seat and cooperate with the mother seat to form the lower part of the base shell molding cavity; after mold opening, the child seats on both sides can be driven to move away from the mother seat. The mother seat and the child seat are separated, and the gap between them can facilitate exhaust; and after mold opening, the child seat moves away from the mother seat, which can facilitate the subsequent demolding operation.

[0010] Preferably, a sub-base driving structure is provided between an upper mold and a lower mold, the sub-base driving structure comprising a driving seat located on the upper mold and a matching seat located on the lower mold, the sub-base being connected to the matching seat, the driving seat being provided with an inclined guide block, the first inclined guide surface and the second inclined guide surface on the inclined guide block being inclined from top to bottom away from the mother seat, the matching seat having an inclined guide cavity for inserting the inclined guide block, the inclined guide cavity having a contact surface that cooperates with the first inclined guide surface, and a convex column that cooperates with the second inclined guide surface, when the mold is closed, the inclined guide block is inserted downward into the inclined guide cavity and the first inclined guide surface cooperates with the contact surface, which can drive the matching seat to drive the sub-base to move closer to the mother seat, so that the sub-base and the mother seat cooperate to form the lower part of the base shell molding cavity; when the mold is opened, the inclined guide block slides out of the inclined guide cavity upward and the second inclined guide surface cooperates with the convex column, which can drive the matching seat to drive the sub-base to move away from the mother seat.

[0011] Preferably, the injection mold can simultaneously mold two sets of P gear buttons, and has two pairs of sub-seats on the lower mold core, and a pair of sub-seats cooperate with a mother seat to mold the lower part of a base shell molding cavity, and the sub-seats on the same side are connected to a matching seat. Two sets of P gear buttons can be molded simultaneously, and the injection molding process efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of a switch button in the background technology of the utility model;

[0013] Figure 2 This is a structural diagram of the injection mold of the utility model;

[0014] Figure 3 This is the internal structure diagram of the injection mold of the utility model;

[0015] Figure 4 This is a structural diagram of the first lower mold in the utility model;

[0016] Figure 5 This is a structural diagram of the lower mold core of the utility model without injection molding of the base shell;

[0017] Figure 6 This is a structural diagram of the lower mold core with a base shell injection molded in the utility model;

[0018] Figure 7 This is a structural diagram of the lower mold core in which the "P"-shaped insert in the utility model is against the injection molding base shell;

[0019] Figure 8 This is the distribution diagram of the second color drainage ribs in the utility model;

[0020] Fig. 9 This is a structural diagram of the matching seat in the utility model;

[0021] Fig.10 This is a structural diagram of the drive seat in the utility model.

[0022] In the figure: first color injection module 1, second color injection module 2, first upper mold 11, first lower mold 12, second upper mold 21, second lower mold 22, first upper mold core 111, second upper mold core 211, "P"-shaped insert 21a, lower mold core 23, second color guide rib 3, mother seat 231, child seat 232, child seat driving structure 4, driving seat 41, inclined guide block 411, first inclined guide surface 411a, second inclined guide surface 411b, matching seat 42, inclined guide cavity 421, contact surface 4211, and boss 4212. DETAILED DESCRIPTION

[0023] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 2-10 As shown, the utility model is an injection mold for a P gear button of an automobile, comprising a first color injection mold 1 for injection molding a base shell, and a second color injection mold 2 for injection molding a panel, wherein the first color injection mold 1 comprises a first upper mold 11 and a first lower mold 12 which are arranged oppositely, and the second color injection mold 2 comprises a second upper mold 21 and a second lower mold 22 which are arranged oppositely, the first upper mold 11 and the second upper mold 21 can perform synchronous opening / closing actions, and the first lower mold 12 and the second lower mold 22 can realize position conversion,

[0025] The first upper mold 11 is provided with a first upper mold core 111, and the second upper mold 21 is provided with a second upper mold core 211. The second upper mold core 211 also has a detachable "P"-shaped insert 21a. The first lower mold 12 and the second lower mold 22 have the same structure, and are both provided with a lower mold core 23 for cooperating with the first upper mold core 111 to form a base shell molding cavity. After the first lower mold 12 with the injection molded base shell is interchanged with the vacant second lower mold 22, the panel molding cavity is formed by cooperating with the second upper mold core 211 of the second upper mold 21, and the "P"-shaped insert 21a also contacts the surface of the injection molded base shell below to form a hollow "P" character on the injection molded panel.

[0026] Specifically, the mold is further provided with a second color drainage rib 3, and the second color drainage rib 3 also extends to the corner A of the "P"-shaped insert 21a.

[0027] Specifically, the lower mold core 23 includes a mother seat 231 and child seats 232 located on both sides. The child seats 232 are slidably arranged on the lower mold core (23). After the mold is closed, the child seats 232 on both sides can be driven to move closer to the mother seat 231 and cooperate with the mother seat 231 to form the lower part of the base shell molding cavity; after the mold is opened, the child seats 232 on both sides can be driven to move away from the mother seat 231.

[0028] Specifically, a sub-base driving structure 4 is provided between a set of upper molds and lower molds, and the sub-base driving structure 4 includes a driving seat 41 located on the upper mold, and a matching seat 42 located on the lower mold, the sub-base 232 is connected to the matching seat 42, and an inclined guide block 411 is provided on the driving seat 41, and a first inclined guide surface 411a and a second inclined guide surface 411b on the inclined guide block 411 are inclined from top to bottom away from the mother seat 231 side, and the matching seat 42 has an inclined guide cavity 421 for the inclined guide block 411 to be inserted, and the inclined guide cavity 421 has a contact surface 4211 that is in conflict with the first inclined guide surface 411a. , and a convex column 4212 that contacts and cooperates with the second inclined guide surface 411b. When the mold is closed, the inclined guide block 411 is inserted downward into the inclined guide cavity 421 and the first inclined guide surface 411a cooperates with the contact surface 4211, which can drive the matching seat 42 to drive the sub-seat 232 to move closer to the mother seat 231, so that the sub-seat 232 and the mother seat 231 cooperate to form the lower part of the base shell molding cavity; when the mold is opened, the inclined guide block 411 slides upward out of the inclined guide cavity 421 and the second inclined guide surface 411b cooperates with the convex column 4212, which can drive the matching seat 42 to drive the sub-seat 232 to move away from the mother seat 231.

[0029] Specifically, the injection mold can inject two sets of P gear buttons together, and has two pairs of sub-seats 232 on the lower mold core 23. A pair of sub-seats 232 cooperate with the mother seat 231 to form the lower part of a base shell molding cavity, and the sub-seats 232 located on the same side are connected to a matching seat 42.

[0030] The injection mold of the utility model can simultaneously mold two sets of P gear buttons, and the injection molding process is highly efficient. During the injection molding process, the injection mold can directly mold a hollow "P" character on the panel, and the base color of the base shell below can be seen through the hollow "P" character, eliminating the need for laser engraving.

[0031] During injection molding, the simulation software Moldflow is used to analyze and select a reasonable gate position. In terms of product structure: the product wall thickness is optimized, the melt convergence angle is increased, and the weld line is located at the corner of the "P" character; the "P"-shaped inserts can be disassembled and trapped air can be discharged through the gaps between the inserts to avoid the weld line between the one-color base shell and the two-color panel being unable to be completely eliminated due to trapped air, and the weld line is further diluted to obtain a product with good appearance.

[0032] The mother seat and the child seat are separated, and the gap between them is convenient for exhaust; and after the mold is opened, the child seat moves away from the mother seat, which can facilitate the subsequent demoulding operation.

[0033] In injection molding technology: adopt high material temperature, high mold temperature and other process strategies to weaken the weld line on the product surface.

[0034] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "couple", "connect", and "fix" 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, it can be the internal connection of two elements or the 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 specific circumstances.

Claims

1. An injection mold for a car P gear button, characterized by: The invention comprises a first color injection molding module (1) capable of injection molding a base shell, and a second color injection molding module (2) capable of injection molding a panel, wherein the first color injection molding module (1) comprises a first upper mold (11) and a first lower mold (12) arranged opposite to each other, and the second color injection molding module (2) comprises a second upper mold (21) and a second lower mold (22) arranged opposite to each other, the first upper mold (11) and the second upper mold (21) can perform synchronous opening / closing actions, and the first lower mold (12) and the second lower mold (22) can realize position conversion. The first upper mold (11) is provided with a first upper mold core (111), the second upper mold (21) is provided with a second upper mold core (211), the second upper mold core (211) also having a detachable "P"-shaped insert (21a), the first lower mold (12) and the second lower mold (22) having the same structure, both being provided with a lower mold core (23) for cooperating with the first upper mold core (111) to form a base shell molding cavity, the first lower mold (12) with the injection molded base shell being interchanged with the vacant second lower mold (22) to form a panel molding cavity in cooperation with the second upper mold core (211) of the second upper mold (21), and the "P"-shaped insert (21a) also abuts against the surface of the injection molded base shell below to form a hollow "P" character on the injection molded panel.

2. The automobile P gear button injection mold according to claim 1, characterized in that: The second color injection molding module (2) is also provided with a second color drainage rib (3), and the second color drainage rib (3) also extends to the corner (A) of the "P"-shaped insert (21a).

3. The automobile P gear button injection mold according to claim 1, characterized in that: The lower mold core (23) comprises a mother seat (231) and child seats (232) located on both sides. The child seats (232) are slidably arranged on the lower mold core (23). After mold closing, the child seats (232) on both sides can be driven to move closer to the mother seat (231) and cooperate with the mother seat (231) to form the lower part of the base shell molding cavity; after mold opening, the child seats (232) on both sides can be driven to move away from the mother seat (231).

4. The automobile P gear button injection mold according to claim 3, characterized in that: A sub-base driving structure (4) is provided between an upper die and a lower die, the sub-base driving structure (4) comprising a driving seat (41) located on the upper die, and a matching seat (42) located on the lower die, the sub-base (232) being connected to the matching seat (42), an inclined guide block (411) being provided on the driving seat (41), a first inclined guide surface (411a) and a second inclined guide surface (411b) on the inclined guide block (411) being inclined from top to bottom away from the mother seat (231), the matching seat (42) having an inclined guide cavity (421) for inserting the inclined guide block (411), a contact surface (4211) on the inclined guide cavity (421) being in contact with the first inclined guide surface (411a), and a contact surface (4211) for contacting with the first inclined guide surface (411a). and a convex column (4212) that contacts and cooperates with the second inclined guide surface (411b). When the mold is closed, the inclined guide block (411) is inserted downward into the inclined guide cavity (421) and the first inclined guide surface (411a) cooperates with the contact surface (4211), so that the matching seat (42) can drive the sub-seat (232) to move closer to the mother seat (231), so that the sub-seat (232) and the mother seat (231) cooperate to form the lower part of the base shell molding cavity; when the mold is opened, the inclined guide block (411) slides upward out of the inclined guide cavity (421) and the second inclined guide surface (411b) cooperates with the convex column (4212), so that the matching seat (42) can drive the sub-seat (232) to move away from the mother seat (231).

5. The automobile P gear button injection mold according to claim 4, characterized in that: The injection mold can simultaneously mold two sets of P-shift buttons, and has two pairs of sub-seats (232) on the lower mold core (23), wherein a pair of sub-seats (232) cooperate with a female seat (231) to mold the lower portion of a base shell molding cavity, and the sub-seats (232) located on the same side are connected to a matching seat (42).

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