Core pulling mechanism for automobile light bar injection mold

Abstract

The utility model relates to injection mold technical field especially involves the core pulling mechanism for automobile light bar injection mold, including base, lower mould of installation on the base, the upper mould of detachable type installation on the lower mould, the mould core of detachable type installation between the lower mould and the upper mould, the double groove mould cavity is constituted between the mould core and the lower mould and the upper mould, install the locking piece on the mould core, when the injection mold closes, the locking piece is used for spacing the upper mould, install the core pulling assembly on the base, the core pulling assembly is used for driving the mould core to move, when the mould core moves and enters between the lower mould and the upper mould, the injection mold closes, the utility model discloses through the linkage of the pneumatic drive of one power unit and second power unit, makes one side mould core and second side mould core synchronous reverse movement, the core pulling action and the stripping process separate, significantly reduce the contact friction of side mould core and light bar, avoid hole and groove deformation or surface scratch.

Claims

1. A core-pulling mechanism for automotive light strip injection molds, comprising a base (1); characterized in that: It also includes a lower mold (201) mounted on the base (1), an upper mold (202) detachably mounted on the lower mold (201), and a mold core detachably mounted between the lower mold (201) and the upper mold (202). The mold core, the lower mold (201), and the upper mold (202) form a double-groove mold cavity (5). A locking element is installed on the mold core. When the injection mold is closed, the locking element is used to limit the upper mold (202). A core-pulling assembly is installed on the base (1). The core-pulling assembly is used to drive the mold core to move. When the mold core moves into the space between the lower mold (201) and the upper mold (202), the injection mold is closed.

2. The core-pulling mechanism for automotive light strip injection molds according to claim 1, characterized in that: The mold core includes a first side mold core (301), a flange portion (302) fixedly connected to the first side mold core (301), a second side mold core (401), and a hole portion (402) fixedly connected to the second side mold core (401). The first side mold core (301) and the second side mold core (401) are both installed on the output end of the core pulling assembly. The core pulling assembly is used to drive the first side mold core (301) and the second side mold core (401) closer to or further away from each other.

3. The core-pulling mechanism for automotive light strip injection molds according to claim 2, characterized in that: The upper mold (202) has slots (6) on both sides. The locking component includes a locking block (7) fixedly connected to the first side mold core (301) and the second side mold core (401). When the first side mold core (301) and the second side mold core (401) approach each other until the locking block (7) enters the corresponding slot (6), the upper mold (202) is limited.

4. The core-pulling mechanism for automotive light strip injection molds according to claim 3, characterized in that: The core-pulling assembly includes an air supply unit, a first power unit, and a second power unit mounted on a base (1). A connecting pipe (1102) connects the first power unit and the second power unit. The air supply unit is used to control the flow of gas into or out of the first power unit. The gas flows between the first power unit and the second power unit through the connecting pipe (1102). The first side mold core (301) is mounted on the output end of the first power unit, and the second side mold core (401) is mounted on the output end of the second power unit.

5. The core-pulling mechanism for automotive light strip injection molds according to claim 4, characterized in that: The gas delivery unit includes an airbag (801) mounted on a base (1) and an air delivery pipe (802) connected at one end to the airbag (801). Gas flows between the airbag (801) and the No. 1 power unit through the air delivery pipe (802).

6. The core-pulling mechanism for automotive light strip injection molds according to claim 5, characterized in that: The No. 1 power unit includes a No. 1 air cylinder (901) mounted on the base (1), a No. 1 plunger (902) movably connected inside the No. 1 air cylinder (901), and an elastic element (1101) installed inside the No. 1 air cylinder (901). The other end of the air supply pipe (802) is connected to one side of the No. 1 air cylinder (901), and one end of the connecting pipe (1102) is connected to the other side of the No. 1 air cylinder (901). The gas in the air bag (801) flows into the No. 1 air cylinder (901) through the air supply pipe (802).

7. The core-pulling mechanism for automotive light strip injection molds according to claim 6, characterized in that: The second power unit includes a second air cylinder (1001) mounted on the base (1), a second plunger (1002) movably connected in the second air cylinder (1001), and another elastic element (1101) mounted in the second air cylinder (1001). The other end of the connecting pipe (1102) is connected to the second air cylinder (1001). When the gas in the air bag (801) flows into the first air cylinder (901), the gas originally in the first air cylinder (901) flows into the second air cylinder (1001) through the connecting pipe (1102).

8. The core-pulling mechanism for automotive light strip injection molds according to claim 7, characterized in that: The first side mold core (301) is fixedly connected to the first plunger (902), and the second side mold core (401) is fixedly connected to the second plunger (1002). When the gas in the airbag (801) flows into the first air cylinder (901) through the air delivery pipe (802), the first plunger (902) drives the first side mold core (301) away from the second side mold core (401). When the gas in the first air cylinder (901) flows into the second air cylinder (1001) through the connecting pipe (1102), the second plunger (1002) drives the second side mold core (401) away from the first side mold core (301).

Images