Carbon powder extruding and filling method

By using a built-in air bag in the buffer bag during the toner filling process, the toner is tightly squeezed into the packaging container, solving the problems of dust mixing and looseness, and improving the toner filling efficiency and product quality.

CN120621780APending Publication Date: 2025-09-12SUZHOU HENGJIU IMAGING TECH CO LTD
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Patent Information

Application Number
CN202510913316.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-03
Publication Date
2025-09-12

AI Technical Summary

Technical Problem

During the existing toner filling process, dust and impurities in the air are easily mixed in, and the toner is loose, resulting in loose filling, which affects printing quality and environmental hygiene, and also causes waste of packaging containers and degraded product performance.

Method used

The cache bag has a built-in airbag, which expands and compresses the inner cavity of the cache bag, tightly squeezing the carbon powder and then discharging it into the packaging container. The gas is transferred between the cache bag and the inner cavity of the airbag to prevent carbon powder from flying and external contamination.

Benefits of technology

The carbon powder is densely packed in the packaging container, which increases the filling volume and utilization rate, improves the working environment, and enhances product quality and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120621780A_ABST
Patent Text Reader

Abstract

The invention discloses a carbon powder extruding and filling method which comprises the following steps: before filling a packaging container with carbon powder, inputting the carbon powder into an inner cavity of a buffer bag, reducing the space of the inner cavity of the buffer bag through compression, discharging gas in the inner cavity of the buffer bag, and extruding the carbon powder in the inner cavity of the buffer bag more tightly; and then the carbon powder which is more tightly extruded in the inner cavity of the temporary storage bag is discharged into a packaging container. According to the carbon powder filling device, carbon powder can be extruded more tightly in the filling process, then the carbon powder can be more tightly stacked in a packaging container, the filling amount of the packaging container can be increased, and the utilization rate of the packaging container is increased; the carbon powder can be prevented from flying and diffusing to the external environment in the extrusion process, so that the working environment can be improved; and external environment gas, external dust, impurities and the like can be prevented from being mixed into the carbon powder, so that the product quality of the carbon powder can be improved.
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Description

Technical Field

[0001] The invention relates to a carbon powder extrusion filling method. Background Art

[0002] Toner, also known as carbon powder, is a powdered substance used in laser printers to fix images on paper; black toner is composed of binder resin, carbon black, charge control agent, external additives and other ingredients; color toner also needs to add other colors of pigments.

[0003] After toner production is complete, it needs to be filled and placed into packaging containers. However, in the current toner filling process, dust and impurities in the air can easily mix into the toner, ultimately affecting print quality. Furthermore, during the filling process, toner is relatively loose, making it difficult to pack tightly into the packaging container. This can result in insufficient toner in the container or expansion of the toner volume after filling, leading to waste of packaging containers and compromising product performance. Furthermore, due to its looseness, toner easily flies during the filling process, contaminating the production environment and posing a hazard to workers. Summary of the Invention

[0004] In order to solve the defects of the prior art, the present invention provides a carbon powder extrusion filling method, comprising: before filling the carbon powder into a packaging container, first inputting the carbon powder into the inner cavity of a cache bag, reducing the inner cavity space of the cache bag by compression, expelling the gas in the inner cavity of the cache bag, and squeezing the carbon powder in the inner cavity of the cache bag more tightly; then discharging the carbon powder squeezed more tightly in the inner cavity of the cache bag into the packaging container.

[0005] The specific content of the carbon powder extrusion filling method of the present invention is detailed in the specific implementation manner.

[0006] The advantages and beneficial effects of the present invention are: providing a carbon powder extrusion filling method, which can squeeze the carbon powder more tightly during the filling process, thereby making the carbon powder more densely accumulated in the packaging container, thereby increasing the filling volume of the packaging container and improving the utilization rate of the packaging container; it can also prevent the carbon powder from flying and diffusing into the external environment during the extrusion process, thereby improving the working environment; it can also prevent the external environmental gas and external dust, impurities, etc. from mixing into the carbon powder, thereby improving the product quality of the carbon powder.

[0007] The present invention also has the following characteristics: The present invention compresses and reduces the inner cavity space of the cache bag by inflating a pair of air bags built into the cache bag, thereby squeezing the carbon powder in the inner cavity of the cache bag, so that the carbon powder in the inner cavity of the cache bag is squeezed more tightly; in this way, the carbon powder in the inner cavity of the cache bag can be squeezed more tightly more conveniently.

[0008] The present invention also achieves inflation of a pair of airbags by pumping the gas in the inner cavity of the cache bag into the pair of airbags; this can be more conducive to compressing and reducing the inner cavity space of the cache bag, and thus can more efficiently and quickly squeeze the carbon powder in the inner cavity of the cache bag more tightly.

[0009] The present invention also inflates the inner cavity of the buffer bag during the toner discharge process (controlling the airflow rate of inflating the buffer bag so that the airflow rate does not loosen the toner that is squeezed more tightly), which is more conducive to the discharge of the toner.

[0010] The present invention also achieves inflation of the cache bag cavity by pumping gas from the inner cavities of a pair of airbags into the inner cavity of the cache bag, thereby achieving the retraction of the pair of airbags while inflating the inner cavity of the cache bag; this can further facilitate the discharge of carbon powder.

[0011] The present invention can discharge the carbon powder remaining on the filter screen and in the inner cavity of the cache bag into the packaging container as much as possible by inflating the inner cavity of the cache bag, so that the amount of carbon powder filled into the packaging container is more accurate.

[0012] The present invention evacuates and inflates the inner cavity of the cache bag and the inner cavities of the pair of airbags, but only transfers gas back and forth between the inner cavity of the cache bag and the inner cavities of the pair of airbags. The gas in the inner cavity of the cache bag and the inner cavities of the pair of airbags is not discharged into the external environment, nor is the gas in the external environment introduced into the inner cavity of the cache bag and the inner cavities of the pair of airbags. Therefore, it can prevent carbon powder from flying and diffusing into the external environment during the extrusion process, thereby improving the working environment. It can also prevent external environmental gas, external dust, impurities, etc. from mixing into the carbon powder, thereby improving the product quality of the carbon powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the present invention. DETAILED DESCRIPTION

[0014] The following embodiments are further described in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0015] The present invention provides a carbon powder extrusion filling method, comprising: before filling the carbon powder into a packaging container, first inputting the carbon powder into the inner cavity of a buffer bag, reducing the inner cavity space of the buffer bag by compression, expelling the gas in the inner cavity of the buffer bag, and squeezing the carbon powder in the inner cavity of the buffer bag more tightly; then discharging the carbon powder squeezed more tightly in the inner cavity of the buffer bag into the packaging container.

[0016] like Figure 1 As shown, the specific embodiments of the present invention are as follows: Example

[0017] A method for extruding and filling carbon powder, which uses a buffer bag to implement extrusion filling of carbon powder; A pair of air bags are arranged in the inner cavity of the cache bag, so that the pair of air bags are respectively fixed on the left and right inner walls of the cache bag; a pair of air pipes are connected to the left and right side walls of the cache bag, so that the pair of air pipes correspond to the pair of air bags one by one, one end of each air pipe is connected to the inner cavity of the corresponding air bag, and the other end of each air pipe is connected to the top of the cache bag and connected to the inner cavity of the cache bag, and an air pump is respectively arranged on each air pipe; a filter is respectively arranged at the junction of each air pipe and the top of the cache bag; a feed pipe connected to the inner cavity of the cache bag is connected to the top of the cache bag, and a feed valve is arranged on the feed pipe, and the feed valve is located at the junction of the feed pipe and the cache bag; a discharge pipe connected to the inner cavity of the cache bag is connected to the bottom of the cache bag, and a discharge valve is arranged on the discharge pipe, and the discharge valve is located at the junction of the discharge pipe and the cache bag; The extrusion filling of carbon powder using a buffer bag includes the following specific steps: Seal the packaging container and the output end of the discharge pipe in a sealed manner; close the discharge valve and open the feed valve, and before filling the carbon powder into the packaging container, first input the carbon powder into the inner cavity of the cache bag through the feed pipe; after the carbon powder is input, close the feed valve; then start the air pumps on a pair of air pipes to extract the gas in the inner cavity of the cache bag and inflate a pair of air bags, and the filter at the junction of the air pipe and the top of the cache bag can prevent the carbon powder from entering the air pipe; after the pair of air bags are inflated, they expand, compress and reduce the inner cavity space of the cache bag, and squeeze the carbon powder in the inner cavity of the cache bag, so that the carbon powder in the inner cavity of the cache bag is squeezed more tightly; after the carbon powder is squeezed, close the air pumps on the pair of air pipes, open the discharge valve, and discharge the carbon powder that is squeezed more tightly in the inner cavity of the cache bag into the packaging container through the discharge pipe. Example

[0018] A method for extruding and filling carbon powder, which uses a buffer bag to implement extrusion filling of carbon powder; A pair of air bags are arranged in the inner cavity of the cache bag, so that the pair of air bags are respectively fixed on the left and right inner walls of the cache bag; a pair of air pipes are connected to the left and right side walls of the cache bag, so that the pair of air pipes correspond to the pair of air bags one by one, one end of each air pipe is connected to the inner cavity of the corresponding air bag, and the other end of each air pipe is connected to the top of the cache bag and connected to the inner cavity of the cache bag, and an air pump is respectively arranged on each air pipe; a filter is respectively arranged at the junction of each air pipe and the top of the cache bag; a feed pipe connected to the inner cavity of the cache bag is connected to the top of the cache bag, and a feed valve is arranged on the feed pipe, and the feed valve is located at the junction of the feed pipe and the cache bag; a discharge pipe connected to the inner cavity of the cache bag is connected to the bottom of the cache bag, and a discharge valve is arranged on the discharge pipe, and the discharge valve is located at the junction of the discharge pipe and the cache bag; The extrusion filling of carbon powder using a buffer bag includes the following specific steps: The packaging container is sealed and connected with the output end of the discharge pipe; the discharge valve is closed, and the feed valve is opened. Before the carbon powder is filled into the packaging container, the carbon powder is first fed into the inner cavity of the buffer bag through the feed pipe; after the carbon powder is fed, the feed valve is closed; then the air pumps on the pair of air pipes extract the gas in the inner cavity of the buffer bag and inflate the pair of air bags, and the filter screen at the junction of the air pipe and the top of the buffer bag can prevent the carbon powder from entering the air pipe; after the pair of air bags are inflated, they expand, compress and reduce the inner cavity space of the buffer bag, and squeeze the carbon powder in the inner cavity of the buffer bag, so that the carbon powder in the inner cavity of the buffer bag is squeezed more tightly; the carbon powder extrusion is completed Finally, the discharge valve is opened to discharge the carbon powder that is squeezed more tightly in the inner cavity of the cache bag into the packaging container through the discharge pipe; during the carbon powder discharge process, the air pumps on a pair of air pipes extract the gas in the inner cavities of the pair of air bags and inflate the inner cavity of the cache bag, causing the pair of air bags to retract, which is more conducive to the discharge of carbon powder (the air flow rate for inflating the cache bag is controlled so that the air flow rate will not blow loose the carbon powder that is squeezed more tightly); and by inflating the inner cavity of the cache bag, the carbon powder remaining on the filter screen and in the inner cavity of the cache bag can be discharged into the packaging container as much as possible, so that the amount of carbon powder filled into the packaging container is more accurate.

[0019] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A carbon powder extrusion filling method, characterized in that: include: Before filling the carbon powder into the packaging container, the carbon powder is first input into the inner cavity of the cache bag, and the inner cavity space of the cache bag is reduced by compression, the gas in the inner cavity of the cache bag is discharged, and the carbon powder in the inner cavity of the cache bag is squeezed more tightly; then the carbon powder squeezed more tightly in the inner cavity of the cache bag is discharged into the packaging container.

2. The carbon powder extrusion filling method according to claim 1, characterized in that: A pair of air bags are arranged in the inner cavity of the cache bag, and the pair of air bags are respectively fixed on the left and right inner walls of the cache bag; a pair of air pipes are connected to the left and right side walls of the cache bag, and the pair of air pipes correspond to the pair of air bags one by one, one end of each air pipe is connected to the inner cavity of the corresponding air bag, and the other end of each air pipe is connected to the top of the cache bag and connected to the inner cavity of the cache bag, and an air pump is respectively provided on each air pipe.

3. The carbon powder extrusion filling method according to claim 2, characterized in that: Filters are respectively arranged at the junction of each gas transmission pipe and the top of the buffer bag.

4. The carbon powder extrusion filling method according to claim 3, characterized in that: A feed pipe connected to the inner cavity of the cache bag is externally connected to the top of the cache bag, and a feed valve is arranged on the feed pipe.

5. The carbon powder extrusion filling method according to claim 4, characterized in that: A discharge pipe communicating with the inner cavity of the cache bag is externally connected to the bottom of the cache bag, and a discharge valve is provided on the discharge pipe.

6. The carbon powder extrusion filling method according to claim 5, characterized in that: Place the feed valve at the junction of the feed tube and the buffer bag.

7. The carbon powder extrusion filling method according to claim 6, characterized in that: Place the discharge valve at the junction of the discharge pipe and the buffer bag.

8. The carbon powder extrusion filling method according to claim 7, characterized in that: The specific steps include: Close the discharge valve and open the feed valve. Before filling the carbon powder into the packaging container, first input the carbon powder into the inner cavity of the cache bag through the feed pipe; after the carbon powder input is completed, close the feed valve; then start the air pumps on a pair of air pipes to extract the gas in the inner cavity of the cache bag and inflate a pair of air bags, and the filter at the junction of the air pipe and the top of the cache bag can prevent the carbon powder from entering the air pipe; after the pair of air bags are inflated, they expand, compress and reduce the inner cavity space of the cache bag, and squeeze the carbon powder in the inner cavity of the cache bag, so that the carbon powder in the inner cavity of the cache bag is squeezed more tightly; after the carbon powder is squeezed, close the air pumps on the pair of air pipes, open the discharge valve, and discharge the carbon powder that is squeezed more tightly in the inner cavity of the cache bag into the packaging container through the discharge pipe.

9. The carbon powder extrusion filling method according to claim 7, characterized in that: The specific steps include: Close the discharge valve and open the feed valve. Before filling the carbon powder into the packaging container, first input the carbon powder into the inner cavity of the buffer bag through the feed pipe; after the carbon powder input is completed, close the feed valve; then the air pumps on the pair of air pipes extract the gas in the inner cavity of the buffer bag and inflate the pair of air bags, and the filter at the junction of the air pipe and the top of the buffer bag can prevent the carbon powder from entering the air pipe; after the pair of air bags are inflated, they expand, compress and reduce the inner cavity space of the buffer bag, and squeeze the carbon powder in the inner cavity of the buffer bag, so that the carbon powder in the inner cavity of the buffer bag is squeezed out. More compact; after the carbon powder is squeezed, the discharge valve is opened, and the carbon powder squeezed more compactly in the inner cavity of the cache bag is discharged into the packaging container through the discharge pipe; during the carbon powder discharge process, the air pumps on a pair of air pipes extract the gas in the inner cavities of a pair of air bags and inflate the inner cavity of the cache bag, so that the pair of air bags retract, which is more conducive to the discharge of carbon powder; and by inflating the inner cavity of the cache bag, the carbon powder remaining on the filter screen and in the inner cavity of the cache bag can be discharged into the packaging container as much as possible, so that the amount of carbon powder filled into the packaging container is more accurate.

10. The carbon powder extrusion filling method according to claim 8 or 9, characterized in that: During the filling process, the discharge pipe is sealed and connected to the packaging container.