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Pneumatic transmission system, speed control method and transmission control method

A technology of pneumatic transmission and transmission speed, applied in conveyors, transportation and packaging, etc., can solve problems such as shocks in starting and stopping acceleration, setting different speeds, etc., to ensure accuracy and improve work efficiency.

Pending Publication Date: 2022-05-13
QINGDAO SANWEI HAIRONG ELECTROMECHANICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current pneumatic conveying system usually operates at a constant speed. Some systems will set high and low speeds, which are also constant speeds. Different speeds cannot be set according to different items to be conveyed. At the same time, there will be shocks when the start and stop acceleration is too large

Method used

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  • Pneumatic transmission system, speed control method and transmission control method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, a pneumatic transmission system includes a fan 1, a vertical pipeline, a main horizontal pipeline 15 and a sub-horizontal pipeline, and the main horizontal pipeline 15 and the sub-horizontal pipeline are arranged along the horizontal direction and are located in the same building Workstations 11 on different floors in the center are connected sequentially through vertical pipelines, and the bottom of the vertical pipelines communicates with sub-horizontal pipelines.

[0033] The fan 1 is located on the main horizontal pipeline 15. Specifically, the fan 1 communicates with the main horizontal pipeline 15 through a three-way valve 2, and the three-way valve 2 can be switched to blowing mode, suction mode and no-load mode. In blowing mode, the fan 1 blows air into the system; in suction mode, the fan 1 sucks air into the system; in no-load mode, the fan 1 neither blows into the system nor blows into the system Inhale the wind.

[0034] Meanwhil...

Embodiment 2

[0039] Such as figure 1 As shown, the same parts of this embodiment and Embodiment 1 will not be repeated, the difference is: a speed control method for a pneumatic transmission system, comprising the following steps:

[0040] S100. In order to achieve a certain set transmission speed, the control terminal sends a control signal to the electric actuator of the regulating valve 4 according to the pre-calibrated value, adjusts the opening of the regulating valve 4, and collects the arrival signals of the transmission bottles through the speed photoelectric sensor 8 and the departure signal, and calculate the real-time transmission speed according to the time difference between the arrival signal and the departure signal.

[0041] S200. The control terminal compares the real-time transmission speed with the set transmission speed to correct the opening of the regulating valve 4. Specifically, when the real-time transmission speed is lower than the set transmission speed, increase...

Embodiment 3

[0045] Such as figure 1 As shown, the same parts of this embodiment as those of Embodiment 1 and Embodiment 2 will not be repeated, but the difference is:

[0046] When the transfer bottle is transferred between different workstations 11 in the same vertical pipeline, adjust the opening of the regulating valve 4, and when the pressure in the system reaches the set pressure corresponding to the set transmission speed, the opening of the regulating valve 4 remains unchanged , the transfer bottle is directly transferred to the target workstation in the vertical pipeline at the set transfer speed.

[0047] When the transport bottle is transported from top to bottom in the same vertical pipeline, the fan 1 is not working, and the transport bottle falls from the originating station in the vertical pipeline by its own gravity. Since the fan 1 does not start and the pipeline is sealed, the pipeline The air in the bottle can only flow out from the gap between the transfer bottle and t...

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Abstract

The invention relates to a pneumatic transmission system, a speed control method and a transmission control method, and belongs to the technical field of pneumatic transmission systems.The pneumatic transmission system comprises a fan, a vertical pipeline, a main horizontal pipeline and a sub horizontal pipeline, the fan is located on the main horizontal pipeline, and an adjusting valve is arranged on the main horizontal pipeline; the workstations located on different floors in the same building are sequentially communicated through vertical pipelines, the bottoms of the vertical pipelines are communicated with the sub horizontal pipelines, the number of the vertical pipelines is at least one, the vertical pipelines and the sub horizontal pipelines are arranged in a one-to-one mode, and the sub horizontal pipelines are communicated with the main horizontal pipeline through reversers. According to the conveying device, a plurality of different set conveying speeds can be preset, different conveying requirements can be met, meanwhile, the conveying bottles are gradually accelerated or decelerated during conveying, the conveying bottles are gentle and free of impact, adverse effects on samples sensitive to vibration are avoided, and the accuracy of detection results is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of pneumatic transmission systems, and in particular relates to a pneumatic transmission system, a speed control method and a transmission control method. Background technique [0002] Pneumatic transmission system is a modern rapid logistics transmission tool, which is used in hospitals, banks, office buildings, supermarkets, production workshops, laboratories and other places where a large number of items need to be transported every day, and is used to transmit medical records, medical certificates, medicines, and laboratory tests. bills, bills, cash, documents, etc. of any appropriate size. The items are placed in the transport carrier during transport, such as a special transport bottle, which ensures that the items are not damaged during the transport process. The pneumatic conveying system uses the conveying bottle as the carrier and the high-pressure air as the power to carry out point-to-point item...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G51/36B65G51/16B65G51/24B65G51/28
CPCB65G51/36B65G51/16B65G51/24B65G51/28
Inventor 刘鹏赵起超梁德利蒋再伟高建峰孙平陶新宇孙晓阳史本政
Owner QINGDAO SANWEI HAIRONG ELECTROMECHANICAL CO LTD
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