Double-row feed system and method of freeze dryer

Abstract

The invention discloses a double-row feed system of a freeze dryer. The system comprises a conveying belt, and a push rod rail in butt joint with the conveying belt, wherein the conveying belt comprises a first conveying belt and a second conveying belt operated in parallel; a first star wheel is arranged in the butt joint place of the first conveying belt and the push rod rail; a second star wheel is arranged in the butt joint place of the second conveying belt and the push rod rail; the first star wheel is opposite to the second star wheel; and small bottles on the first conveying belt and the second conveying belt are conveyed onto the push rod rail one by one under the rotation of the first star wheel and the second star wheel. The invention further discloses a double-row feed method of the freeze dryer; and double rows of small bottles are pushed into a plate layer or a buffer area after being arranged through the rotating number of the double star wheels and the rotating offset of push rods. The feed system and method greatly accelerate the feed speed, and has a measure of multilayer elimination of falling bottles.

Description

technical field [0001] The invention mainly relates to the field of packaging machinery for medicine, food, etc., and particularly refers to a feeding system and method for a freeze dryer with two rows of feeding. Background technique [0002] The automatic loading and unloading of the freeze dryer sends the semi-stoppered vials to the shelf of the freeze dryer through the feeding integration device and bottle unscrambling device combined with the feeding push rod. After the freeze-drying process cycle is completed, the discharge push rod is combined with the discharge The integrated device sends the vials out of the shelf and transfers them to the capping machine and subsequent processes. The entire feeding and discharging process is completely controlled by the control system without manual intervention, avoiding manual contact with the product, thereby preventing the product from being damaged during the transfer process to the greatest extent. pollution, so the use of au...

AI Technical Summary

Problems solved by technology

At present, the existing automatic feeding and discharging equipment is generally single-line feeding. By increasing the running speed of the conveyor belt and star wheel, the overall feeding speed of small bottles can be increased within a certain range, but the range is limited. Generally speaking, 400 bottles / min is It is difficult to increase the limit speed of this type of single-line feeding and discharging equipment.

Moreover, with the unilateral increase in the speed of the conveyor belt, the probability of dumping the vials in the track is correspondingly increased. The resulting consequences are: 1. The dumped vials are stuck at the corners of the track, causing blockage, and subsequent vial transmission is blocked. , if there is no timely intervention by the operator on site, it will remain stagnant, affecting the speed of the entire production cycle; 2. If the dumped vials smoothly enter the track close to the front end of the star wheel, it will cause the rotating star wheel and the vial to squeeze, seriously Damage the edges and corners of the star wheel and damage the automatic feeding and discharging equipment

On the other hand, with the acceleration of the speed of the star wheel, according to a large number of experiments, it has been found that it will also lead to the following problems: 1. If the front end fails to transfer the vial continuously at a high speed due to bottle blockage or lack of bottle, it will cause the star wheel to frequently Start and stop, and for the star wheel in the high-speed running state, the frequent start and stop increases the risk of positioning deviation; 2. The star wheel is in the high-speed running state, and it will form a certain positioning deviation after running for a period of time , as the cumulative time increases, the deviation will increase accordingly, which not only leads to inaccurate positioning, irregular arrangement of vials, and imprecise control, but also increases the failure of the first and last vials in the vial line to enter the push rod track area normally This creates a fatal risk of being crushed by the feed ram, which is unacceptable for the pharmaceutical industry

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