Powder packaging line rapid and accurate feeding and weighing method and device

A packaging line and material weighing technology, which is applied in the direction of packaging, transportation and packaging, and the type of packaged items, can solve the problem of increasing the complexity of the system structure, the packaging line is not suitable for automatic weighing packaging of fine air-entrained powder materials, and the transfer of packaging material bags Increase difficulty and other issues to achieve fast and high-precision feeding and weighing, improve efficiency, and improve feeding efficiency

Inactive Publication Date: 2015-04-22
陈亘涛 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] 4. In addition to the problem of weighing control accuracy, the existing packaging line is completely unsuitable for automatic weighing and packaging of fine air-entrained powder materials. The following uses calcium hydrogen as an example to illustrate
Some people in the industry have tried a variety of vibration exhaust solutions, most of which are designed to solve the exhaust problem, which not only increases the complexity of the system structure, but also increases the difficulty of the transfer of packaging bags on the packaging line
[0019] To sum up, there is currently no feeding and weighing system that can fully solve the above problems and is suitable for fine air-entrained powders.

Method used

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  • Powder packaging line rapid and accurate feeding and weighing method and device
  • Powder packaging line rapid and accurate feeding and weighing method and device
  • Powder packaging line rapid and accurate feeding and weighing method and device

Examples

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Effect test

Embodiment 1

[0066] The structural frame diagram of the initial feeding weighing station and the replenishing weighing station related to the method and device provided by the present invention in the first embodiment is as follows: figure 2 Shown.

[0067] Initial feeding and weighing station:

[0068] The initial feeding and weighing station is composed of a combined feeder arranged above and a weighing device arranged below the station. With the cooperation of the adjustable partition, the cavity volume of the combined feeder can be adjusted between 45-50 liters. The volume of the cavity is adjusted according to the maximum specific gravity that may occur on the production line, so that it can accommodate the maximum specific gravity. The powder weight does not exceed the nominal weight of 50 kg; the diameter of the screw feeder is 240mm, the maximum feeding speed is 5 liters / sec; the weighing device is composed of 3 SWB8 load cells with a rated capacity of 50 kg, and 3 weighing The sensor...

Embodiment 2

[0075] In the second embodiment, the structural frame diagram of the initial feeding weighing station and the replenishing weighing station related to the method and device provided by the present invention are as follows: image 3 Shown.

[0076] The initial feeding station of the second embodiment is exactly the same as that of the first embodiment; except that the feeding device is different from the initial feeding station, the rest of the replenishing station is also exactly the same as the initial feeding station.

[0077] The replenishing weighing station of the second embodiment uses the same rotary grid feeder as the first embodiment to directly replenish the packaging material bag that has completed the initial feeding and weighing step. The weighing system with the same weight measures the replenishment process. Since the replenishment weighing work in the second embodiment is directly performed on the packaging material bag that has completed the initial feeding and wei...

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Abstract

The invention discloses a powder packaging line rapid and accurate feeding and weighing method and device. The method includes the initial feeding and weighing step and the powder supplementing and weighing step. In the initial feeding and weighing step, an initial feeding amount set value is determined, and then powder is added through a dynamic weighing control method according to the set value; in the powder supplementing and weighing step, the weight of power, having already been added, in a package powder bag is obtained first, the difference between the known powder weight and the standard weight is obtained through comparison so that powder can be supplemented and added and powder in the power bag can reach the given accuracy. The device is composed of an initial feeding and weighing station, a powder supplementing and weighing station and a powder bag hanging frame. The initial feeding and weighing station comprises an initial feeding device and an initial weighing device. The powder supplementing and weighing station comprises a powder supplementing device and a supplemented powder weighing device. The initial feeding device is composed of a quantitative bin and a spiral feeder. The powder packaging line rapid and accurate feeding and weighing method and device can be widely used for powder of various types, for example, air-containing powder and super-fine power, and the feeding and weighing efficiency and accuracy are greatly improved.

Description

technical field [0001] The invention belongs to the field of industrial automation and relates to a method and device for feeding and weighing powdery materials. Background technique [0002] The production line that can realize the functions of automatic feeding, weighing, packaging, and transportation of powder is referred to as "packaging line"; the system on the "packaging line" that can realize automatic feeding and weighing functions is called "feeding and weighing system"; The device for loading cards and hanging packing bags is called "packing bag fixing device". [0003] At present, the powder automatic feeding weighing system that has been widely used is only suitable for powders with large particles, good fluidity, low powder value, and low requirements for weighing accuracy; in China, except for imported, In addition to the feeding and weighing system based on the high-cost valve pocket, most of the weighing and packaging of high-value fine powder and serious ai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65B1/32B65B1/04
CPCB65B1/34B65B1/04
Inventor 王富元陈亘涛
Owner 陈亘涛
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