A PCR tube forming mold

Abstract

The application relates to the technical field of injection molds, and discloses a PCR tube forming mold, which comprises an upper mold and a plurality of mold core assemblies, and a group of distributed installation grooves are arranged at the bottom of the upper mold. The PCR tube forming mold is characterized in that the mold core assemblies are slidably connected with the installation grooves, and the sealing sliding connection of the high-temperature-resistant silicone rubber sealing ring is achieved, so that the mold core assemblies can be quickly disassembled and sealed and transmitted, the modular maintenance purpose is achieved, the maintenance difficulty problem caused by the traditional mold core fixation is solved, the one-way gas conveying of the air inlet pipe and the third one-way valve is achieved, the high-pressure gas enters the top end of the mold cavity after the upper mold and the external lower mold are separated, the flexible demolding of the molded product in the mold cavity is realized, the gas can be stripped through the gap between the product and the mold cavity, the effects of avoiding mold sticking and pulling and uniformly applying force for demolding are achieved, and the problem that the traditional mechanical demolding is prone to causing product deformation or surface scratches is solved.

Claims

1. A PCR tube forming mold, comprising an upper mold (1) and multiple mold core assemblies (2), characterized in that: The bottom of the upper mold (1) is provided with a set of distributed mounting slots (101), and the inner top wall of each mounting slot (101) is fixedly connected to an injection tube (102) extending to the top of the upper mold (1). The mold core assembly (2) includes a mounting block (201), a mold cavity (202) is provided inside the mounting block (201), the mounting block (201) is slidably inserted into the adjacent mounting groove (101), the top of the mounting block (201) is provided with a connecting pipe (203) coaxial with the mold cavity (202), the bottom end of the connecting pipe (203) is fixedly connected to the mold cavity (202), and a sealing element (204) is fixedly connected to the outer surface of the other end of the connecting pipe (203), and the sealing element (204) is slidably inserted into the adjacent injection tube (102); Each of the injection tubes (102) has an air inlet pipe (205) fixedly connected to its surface, perpendicular to its axis.

2. The PCR tube forming mold according to claim 1, characterized in that: The bottom of each mounting block (201) is at the same level as the bottom of the upper mold (1).

3. The PCR tube forming mold according to claim 1, characterized in that: Each mounting groove (101) has a connecting rod (3) fixedly connected to its inner top wall along the height direction of the upper mold (1). Each mounting block (201) has a countersunk hole (4) at its bottom along its height direction. Each connecting rod (3) is inserted into its adjacent countersunk hole (4). Each connecting rod (3) has a nut (5) threaded to its bottom end.

4. A PCR tube forming mold according to claim 1, characterized in that: Each injection tube (102) is equipped with a first check valve (6) at its top end, each connecting tube (203) is equipped with a second check valve (7) inside, each air inlet tube (205) is located between adjacent first check valves (6) and second check valves (7), and each air inlet tube (205) is equipped with a third check valve (8) inside.

5. A PCR tube forming mold according to claim 1, characterized in that: The sealing element (204) is a rubber sealing ring.

6. A PCR tube forming mold according to claim 4, characterized in that: The injection tube (102) has a cavity inside, and a heater (9) is installed inside the cavity.

7. A PCR tube forming mold according to claim 6, characterized in that: The heater (9) is an electric heating wire module.

Images