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Powder body packing machine valve

A packaging machine and valve technology, applied in the direction of packaging, transportation and packaging, and the type of packaged items, can solve the problems of multi-maintenance time, shortened cylinder life, slow action speed, etc., and achieve obvious economic benefits, high powder delivery speed, and reputation The effect of increasing

Inactive Publication Date: 2012-10-03
廉明辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary pinch valves also have the following disadvantages: 1. It can only be opened or closed, and the opening of the valve cannot be controlled. The flow of powder cannot be precisely controlled by the opening of the valve, and it is difficult to accurately control the packaging accuracy.
2. It takes a long time to open and close the valve. When the powder feeding speed of the packaging machine is very fast, when the instrument measures the target weight, the cylinder starts to move. Due to the long stroke of the valve cylinder, the movement speed is slow. When the valve is completely closed, the weight of the package has been packed. Tend to exceed target weight value
3. In order to increase the speed of cylinder action, the working air pressure of the cylinder is often increased. The life of the cylinder working under high air pressure is greatly shortened, and the failure rate is high. In addition, the excessive cylinder pressure will quickly pinch the valve hose, resulting in excessively high pressure. Costs and excessive repair time
4. In order to ensure accurate packaging, the powder feeding speed of the packaging machine is made very low, because once the speed is high, when the target value is reached, the valve cannot be closed in time, and the packaging weight often exceeds the target weight value
Therefore, high-speed packaging cannot be achieved

Method used

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  • Powder body packing machine valve
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  • Powder body packing machine valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] This example is a powder packaging machine valve with a fixed valve structure, including a front cylinder 1, a rear cylinder 2, a rubber hose 3, a valve frame 5, and a rubber hose clamping rod 6. The front-stage cylinder 1 is connected with the rear-stage cylinder 2 to form a double-stage cylinder. Two identical double-stage cylinders are arranged on the left and right sides of the valve frame 5 respectively. The end pipe joints are respectively fixed on the upper end and the lower end of the valve frame 5 . The left and right sides of the valve frame 5 are double-stage cylinders composed of the front cylinder 1 and the rear cylinder 2. The rubber hose clamp rod 6 is connected to the rubber hose clamp rod 6 through the piston rod. The rubber hose clamp rod 6 moves left and right under the drive of the cylinder, so that the cross-sectional area of ​​the rubber hose 3 It becomes larger or smaller, and the valve is opened or closed at the same time, forming a fixed valve s...

Embodiment 2

[0017] This example is a powder packaging machine valve with an adjustable valve structure. Embodiment 2 is basically the same as Embodiment 1. The difference is that one side of the valve frame 5 is provided with a front cylinder 1 and a rear cylinder 2. The double-stage cylinder has an adjustable stroke cylinder 7 on the other side to form an adjustable valve structure.

[0018] working principle

[0019] When the packaging starts, the cylinder 2 drives the rubber hose clamp rod 6 to run outwards to the end, the valves are fully opened, the rubber hose 3 has the largest cross-sectional area, and a relatively high conveying speed can be obtained, such as figure 1 shown;

[0020] When the packaging weight is close to the target weight value, the cylinder 1 drives the clamp rod to move inward, so that the valve is closed and the cross-sectional area of ​​the rubber hose 3 becomes smaller, which greatly limits the conveying speed of the powder material 4 in the rubber hose, an...

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Abstract

The invention relates to a powder body packing machine valve, which comprises front section air cylinders, back section air cylinders, a rubber pipe, a valve frame and a rubber pipe clamping rod, wherein the front section air cylinders are connected with the back section air cylinders for forming double-section air cylinders, the two identical double-section air cylinders are respectively arranged at the left side and the right side of the valve frame, the center position of the valve frame is provided with the rubber pipe, the rubber pipe is respectively and fixedly arranged at the upper end and the lower end of the valve frame through an upper end pipe joint and a lower end pipe joint, the double-section air cylinders arranged at the left side and the right side of the valve frame are connected with the rubber pipe clamping rod through a piston rod, the rubber pipe clamping rod moves leftwards and rightwards through being driven by the air cylinders so that the cross area of the rubber pipe is increased or decreased, meanwhile, the valve is opened or closed, and a fixed valve structure of the left double-section air cylinder and the right double-section air cylinder is formed. The double-section air cylinder can also be arranged at one side of the valve frame, an adjustable stoke air cylinder is arranged at the other side of the valve frame, and an adjustable valve structure is formed. The powder body packing machine valve has the advantages that the packing speed is greatly accelerated, the package weight precision is greatly improved, the service lives of each part of the rubber pipe and the valve air cylinders are prolonged, the maintenance cost is reduced, and the maintenance time is saved.

Description

technical field [0001] The invention relates to a valve, in particular to a valve for a powder packaging machine. Background technique [0002] At present, there are two main types of conventional powder packaging machine valves, gate valves and pinch valves. Gate valves have basically been eliminated because they are prone to powder leakage and wear. Ordinary pinch valves also have the following deficiencies: 1. It can only be opened or closed, and the opening of the valve cannot be controlled. The flow of powder cannot be precisely controlled by the opening of the valve, and it is difficult to accurately control the packaging accuracy. 2. It takes a long time to open and close the valve. When the powder feeding speed of the packaging machine is very fast, when the instrument measures the target weight, the cylinder starts to move. Due to the long stroke of the valve cylinder, the movement speed is slow. When the valve is completely closed, the weight of the package has be...

Claims

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Application Information

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IPC IPC(8): B65B1/04B65B1/34
Inventor 廉明辉高广曹威
Owner 廉明辉
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