Pressing device for plastic product production

The utility model discloses a hold-down device for plastic product production, which comprises a hold-down rack body, an operation table is arranged above the inside of the hold-down rack body, dustproof protective covers are arranged on two sides above the operation table, a hold-down machine is arranged at the top end inside the dustproof protective covers, an air cylinder is arranged below the hold-down machine, and the air cylinder is arranged below the hold-down machine. A telescopic rod is arranged in the air cylinder. The adjustable positioning seat is arranged above the telescopic bottom plate, the adjustable positioning seat is pulled out or pushed in through a sliding telescopic adjusting mode, after an internal plastic product is pressed, the telescopic bottom plate can be pulled out, the plastic product which is not pressed tightly can be replaced, operation below a pressing plate is avoided, and the operation efficiency is improved. And in addition, the sliding wheels are arranged at the bottom o