Powder material discharge transmission system for batch-type packaging machine and control method thereof

Abstract

The invention relates to a powder material discharge transmission system for a batch-type packaging machine and a control method thereof. The powder material discharging transmission system comprises a powder material stirring transmission mechanism, a discharge filling transmission mechanism, a discharge driving stepping motor and a discharge stepping motor driver. The discharge filling transmission mechanism adopts a discharge filling storage pump, so that the discharge filling time is greatly shortened, and the general packaging speed is increased; by the powder material stirring transmission mechanism, the loose degree of powder materials in a powder material storage bin can be effectively guaranteed, a system controller finishes the operation of pulling bags to feed paper and transverse and longitudinal sealing, and automatically drives the discharge filling storage pump to execute discharge filling operation on the stored powder materials, and in the operating process, the next bag of the required powder materials is stored in the powder material storage bin in the discharge filling storage pump. By the cycle, the discharge filling execution time is greatly shortened, and the discharge filling speed is effectively increased.

Description

technical field [0001] The invention belongs to the field of packaging machinery, and relates to a transmission system for unloading powder materials of an intermittent packaging machine and a control method thereof. Background technique [0002] The technical status of the domestic feeding machine: the intermittent automatic packaging machine is a major mainstream in the world's packaging machine industry. Compared with the continuous automatic packaging machine, it has the advantages of good material packaging finished bag forming effect, simple mechanical structure, and low installation and maintenance costs. Low characteristic, so it is widely used, especially in the pharmaceutical industry. At present, intermittent packaging machines are classified by packaging materials into three categories: granule packaging machines, powder packaging machines and sauce packaging machines, and the market share of powder material packaging machines accounts for a large part of both me...

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Problems solved by technology

2. Existing problems 1) The feeding method of the pusher screw is related to the properties of powder materials: powder materials include medicinal powder and various food powders, and the physical properties of each powder are different, among which viscosity, specific gravity, looseness, The fluidity directly affects the feeding effect, and the looseness of the materials in the bag cannot be guaranteed

For example, camellia noodles with relatively large specific gravity and viscosity, black sesame paste with relatively high oiliness, and lotus root powder with relatively small specific gravity have become obstacles to the screw pushing method, and are also difficult problems to be solved by the current blanking and filling method.

2) The feeding method of the pusher screw is related to the stirring movement mode: the stirring movement link of the powder material is directly related to the feeding effect of the powder material. The size and installation space is limited; the second is the driving method of the stirring motor, which cannot guarantee the looseness of the powder material in the silo, and it is more difficult to ensure the filling effect of the material with a relatively large viscosity, relatively large oiliness, and relatively high specific gravity.

[0003] 3) The feeding and filling speed of the pusher screw is related to the screw rotation movement mode: the screw rotation process depends on the step size and rotation speed of the stepper motor. For example, to push 40g powder material, generally the 30mm diameter screw needs to rotate 4-5 times, about Running for 1S, the packaging speed of the intermittent packaging machine can only meet the speed requirement of 60 bags / min

In severe cases, it will damage the motor (stepping motor and stirring motor) and transmission gear

5) The powder material blanking and filling mechanical structure is complex and the driving power is large: the powder material blanking and filling mechanical structure includes a hopper, a high-torque stepping motor, a high-power stirring mechanism, and a screw rotation mechanism, etc., which all bring high cost blanking and filling Transmission mechanism, complex installation and commissioning process and huge energy consumption

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