The automatic molding and filling machine for oral liquid plastic bottles includes an organic rack, a feeding device, and a control system. Its feature is that the rack is sequentially equipped with connected plastic bottle molding device, filling device, tail sealing device, punching device, and indentation device. The feeding device, plastic bottle molding device, filling device, tail sealing device, punching device, and indentation device are all connected to the control system. The utility model has a compact structure, realizes automated operation, low manufacturing cost, and high production efficiency.


2.3.1 The feeding device comprises a feeding roller 6, an upper track 7, a lower track 8, a rear track 9, a pushing cylinder 10, a front traction mechanism 11, and a rear traction mechanism 12. The front traction mechanism 11 is arranged on the upper and lower tracks 8, and the rear traction mechanism 12 is arranged on the rear track 9. Both the front traction mechanism 11 and the rear traction mechanism 12 are driven by the pushing cylinder 10 through a connecting rod for traction, and the traction path terminals of the front traction mechanism 11 and the rear traction mechanism 12 are respectively provided with a front traction locator and a rear traction locator. The feeding device realizes the transfer of two parallel and opposite mold materials on the track by the traction mechanism.
2.3.2 The upper track 7 and the lower track 8 can move up and down and are set on the bracket, so that the distance between the upper track 7, the distance between the lower track 8, and the distance between the upper track 7 and the lower track 8 can be adjusted to adapt to oral liquid plastic bottles of different heights and widths.
2.3.3 The end of the pushing path of cylinder 10 is equipped with a buffer device 13 and a stroke adjustment device. Buffer device 13 is a spring. The push path terminal of the push cylinder is equipped with a buffer device and a stroke adjustment device.
2.3.4 The material device also includes an elastic tension roller 14, which cooperates with the discharge roller 6 to discharge the material, avoiding excessive or insufficient tension of the film material during transportation. The elastic tension roller 14 is a conveying roller set on the swing arm, and the free end of the swing arm is pulled by a spring.
2.3.5 The plastic bottle forming device 1 includes a heating roller 15, a forming mold, and a forming blowing machine 16. The forming mold is connected after the heating roller 15, and a material partition plate is provided between the forming mold and the heating roller. The forming blowing machine 16 cooperates with the forming mold, and a cooling device is also provided on the forming mold for rapid cooling of the mold. The two layers of film material that are attached to each other are softened by a heating roller. The softened film material enters the molding mold through a material partition plate, and is blown between the two layers of film material by a molding blower to form an inverted plastic bottle in the molding mold, with a filling hole reserved at the tail of the plastic bottle. The two molds that cooperate with each other are driven by cam mechanisms to achieve opening and closing actions; The setting of the material partition plate prevents the film material from sticking together after being softened by heating and before forming, which affects the subsequent forming.
2.3.6 The filling device 2 includes a connected filling head 17 and a filling pump 18, and the filling head is equipped with an electromagnetic valve; There are multiple filling heads arranged side by side, corresponding to the filling holes at the tail of the plastic bottles being transported, to accelerate the filling efficiency.
2.3.7 Tail sealing device 3 is driven by a cam mechanism that cooperates with a heat sealing knife and a heat sealing pad.
2.3.8 The punching device 4 is a cam mechanism driven punching knife and punching pad that cooperate with each other, and the waste generated by punching is blown into the waste outlet through the corresponding waste blowing port.
2.3.9 The indentation device 5 consists of an indentation knife and an indentation pad that are driven by a cam mechanism and cooperate with each other; The cam mechanism of the tail sealing device 3, the cam mechanism of the punching device 4, the cam mechanism of the indentation device 5, and the cam mechanism of the forming mold share two parallel rotating shafts 19, which are driven by connected motors and reducers.