Powder feeding mechanism for preventing pollution to cefodizime sodium used for injection

A technology for cefodizime sodium and injection, which is applied in the field of powder feeding mechanism to prevent the pollution of cefodizime sodium for injection, and can solve the problems of affecting the quality of the finished drug powder, pollution of clean drug powder, and blockage of the transmission mechanism by the drug powder

Active Publication Date: 2015-01-07
SICHUAN PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the existing powder feeding mechanism transfers the powder to the packaging mechanism, since the powder cylinder and the transmission mechanism are in direct contact, the powder easily enters the transmission mechanism from the contact part of the powder cylinder and the transmission mechanism. On the one hand, it will cause the powder to The blockage of the transmission mechanism, on the other hand, the powder will also be driven back and forth from the transmission mechanism, which will pollute the clean powder that has been placed in the powder cartridge and affect the quality of the finished product

Method used

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  • Powder feeding mechanism for preventing pollution to cefodizime sodium used for injection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, a powder feeding mechanism for preventing contamination of cefodizime sodium for injection includes a powder feeding hopper 2, a powder feeding cylinder 9, a powder outlet 10 and a transmission part; The top of the cylinder 9 is connected with the powder feeding cylinder 9; the left side of the powder feeding cylinder 9 is connected with the powder outlet 10, and the powder outlet 10 is a conical cylinder with the left opening smaller than the right opening; the powder feeding The right side of the cylinder 9 is provided with a transmission part, and the powder feeding cylinder 9 is provided with a powder feeding screw 1, and the right side of the powder feeding screw 1 is connected with the transmission part; there is also a flexible connection between the powder feeding cylinder 9 and the transmission part A support device 3 with an internal cavity to prevent powder from intruding into the transmission part. The support device 3 includes a s...

Embodiment 2

[0029] Such as figure 1 As shown, similar to Embodiment 1, a powder metallurgy oil-impregnated bearing 7 is also provided at the gap between the support base 32 and the transmission shaft. The thermal expansion coefficients of porous materials and lubricating oil are different, so the oil is squeezed into the friction surface from the pores when it is working, and the oil is sucked back into the pores as the temperature drops when it stops working. Powder metallurgy oil-impregnated bearing 7 has the characteristics of low cost, vibration absorption, low noise, and no need to add lubricating oil during a long working time. It is especially suitable for working environments that are not easy to lubricate or do not allow oil to be dirty.

[0030] An annular sheet 8 is also arranged between the powder feeding screw 1 and the support base 32 to prevent the powder from entering the support device 3 . The arrangement of the powder metallurgy oil bearing 7 and the annular piece 8 can...

Embodiment 3

[0032] Such as figure 2 As shown, similar to Example 1, a stirring paddle is also provided in the powder feeding hopper, and the stirring paddle is driven by a motor. The stirring paddle is set in the powder feeding hopper, the purpose is to make the powder not easy to agglomerate.

[0033] The transmission shaft 5 is also provided with an electromagnetic clutch to control the movement of the powder feeding screw 1 and then control the powder level.

[0034] The support cylinder 31 is also provided with a powder discharge hole 6 penetrating through the support cylinder 31 for discharging the powder reaching the inner cavity of the support device 3 .

[0035] The powder leaking hole 6 is arranged near the support base 32, and the powder leaking hole 6 is funnel-shaped. The setting of the powder discharge hole 6 can discharge the powder without dismantling the support device 3 , preventing excessive powder accumulation in the support device 3 and causing possible pollution. ...

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PUM

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Abstract

The invention discloses a powder feeding mechanism for preventing pollution to cefodizime sodium used for injection. The powder feeding mechanism is provided with a powder cylinder; a transmission part is provided with a support device with an inner cavity; the support device can collect medicine powder possibly remaining in the inner cavity, so that the medicine powder is prevented from directly invading into the transmission mechanism to lead to blockage of the transmission mechanism and pollution to dry medicine powder, the transmission mechanism can be protected, and the quality of the medicine powder can be ensured.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to a powder feeding mechanism for preventing contamination of cefodizime sodium for injection. Background technique [0002] The screw filling machine adopts single-head continuous powder loading, and the specially designed large-diameter screw is used to load the powder accurately. The plug pressing mechanism adopts a disc type plug unscrambler, which is accurate and reliable. It is controlled by computer, with Chinese menu display on the touch screen, and numerically controlled. The motor control circuit is stable and reliable, and it has the functions of automatic powder filling, plugging, automatic discharge of inverted bottles, and no powder filling when there is no bottle. The cleaning, loading and unloading, and adjustment of each part are simple, and the maintenance is convenient. [0003] The feeding and powder feeding mechanism of the screw packing machine is respo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G33/32B65G33/24B65B1/12
CPCB65B1/12B65G33/24B65G33/32
Inventor 包莹刘萍陈继源
Owner SICHUAN PHARMA
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