Production process of controlled injection bottle
Low borosilicate (medium borosilicate) glass control injection bottle is a secondary processing product of glass, the production process is semi-automatic production line molding, the production process is as follows:
Collar tube → intubation → fixed length → initial forming of bottle mouth → forming of bottle mouth → bottom cutting → back sealing → polishing correction → annealing → bag checking → inspection → storage
Low borosilicate (medium borosilicate) glass controlled injection bottle and soda-lime glass controlled oral liquid bottle are produced by similar machines and equipment with the same production process. The bottle making machine is a semi-automated special equipment. The machine is used to manufacture medicinal vials with various specifications such as smooth port, cone port and threaded port. The machine requires high stability of energy supply. The three gases supplied need multi-stage pressure regulation and multi-stage pressure stabilization to ensure stable thermal value during flame combustion, it is conducive to the requirement of small size deviation of this kind of medicine bottle, and at the same time, it also requires high technical level of operators. No matter the advanced high-grade bottle making equipment abroad, or the two independent transmission systems with two motors as the power supply are generally used in the domestic manufacturing equipment. One is the rotation system of the chuck (including neck making and bottom making). In this system, the power of the motor is driven by a speed regulating motor, a gear reduction box and a sprocket, and then driven by a bevel gear and a cylindrical gear. The neck chuck rotates by itself, and the bottom chuck is driven by a universal joint coupling, bevel gear and cylindrical gear transmission. The system is controlled by a frequency converter to control the speed of the chuck.
The second is the working step movement system (including neck making and bottom making). In this system, the power of the motor passes through the speed regulating motor, chain drive, worm and worm gear gearbox, and then makes the neck making twelve equal parts through the large gap cam. The disc does intermittent movement, so that the glass tube can reach and pass through the twelve stations of the neck making. At the same time, the small cams control the automatic operation of fixed length and neck making; through the small gap cam, the bottom six sub-discs are intermittently moved, so that the glass bottles can reach and pass through the six stations at the bottom. At the same time, each small cam controls the automatic operation of the bottom part, and drives the conveyor belt to run through a small conical gear at the end of a shaft.
The neck of the machine is divided into twelve sets of identical jigs and twelve workstations. The neck is formed twice, and the forming mechanism consists of three parts: height adjustment of the flaring sleeve, height adjustment of the press roll and center distance adjustment of the press roll. At the bottom of the system, there are six workstations and six sets of the same fixture. Each set of fixture has two states of relaxation and clamping. The rise and fall of the fixture are controlled by the rack at the lower part. The height of the bottom part of the whole system can be adjusted by the hand wheel at the bottom to meet the requirements of different height bottles. The whole process of forming bottles with glass tubes is completed at one time on the bottle making machine without intermediate processes. The fully formed bottles are transported to the annealing furnace for annealing through a conveyor belt to eliminate the thermal stress caused by local heating during molding and quantitatively control the stress within 20nm/mm according to the requirements of the national standard, thus forming a technological process from raw materials to finished products.
The fuel of the machine is natural gas, oxygen is used as auxiliary gas, and air is added to adjust the temperature and support combustion. The position and flame strength of each spray fire can be adjusted as required. Because the nozzle has different requirements for the pressure of natural gas, oxygen and low pressure air, various pressures are completed by the pressure relief valve on each pipeline.