At present, the proportion of hard capsules in the pharmaceutical and health care products market is increasing. Capsule filling machines, as their production infrastructure, will also be more widely used, and people's application requirements will also increase. Although the manufacture and technology of domestic capsule filling machines are basically mature, the shortcoming in the United States is the way of loading. The Chinese also respond to them through a variety of feeding methods. In the face of various feeding methods and actual conditions, people will choose how to load. What about?
Since the beginning of the 1980s, the large-scale application of capsule filling machines in the production of hard capsules in the country has gone through several processes: from the original artificial ladder to the conveyor belt, from the barrel to the positive Pressure delivery, from vacuum delivery to automatic vacuum delivery, in addition to cross-layer air control self-weight delivery. The development of these processes shows the progress made by the way of loading and unloading.
At present, in the production of solid preparations in the country, except for a few, the capsule filling machine is still extended by manual ladders or other methods of feeding, and the automatic vacuum feeding machine and the barrel lifting machine are mainly used for feeding, and the two methods are different. With the maturity of the automatic vacuum feeder technology and the structural limitations of the workshop under construction, the automatic vacuum feeder will show a practical side. However, the purpose of these two feeding methods is to overcome the imperfections in the manual ladder dumping method: (1) Since the mixed powder needs to be placed in a rotating drum and transported to the capsule filling process, The original artificial ladder dumping method, such as the process of loading and unloading, will cause dust to fly, polluting the site, equipment, operators, etc., which is also extremely detrimental to air purification, environmental sanitation, and personnel health. At the same time, the production site and production equipment are not easy to clean, and the filtration system of the purification system is easily blocked or damaged, resulting in poor filtration effect and reduced purification level. (2) In the manual ladder dumping method, the labor intensity of the operator engaged in transportation and ladder dumping is also great.
This article will use Rui'an Feiyun Machinery Factory (hereinafter referred to as Feiyun Factory) to launch the automatic vacuum feeder matched with the capsule filling machine, starting from the basic overview of the filling of the capsule filling machine, and the automatic vacuum loading machine. The structure and principle are described, and the automatic vacuum feeder is practically and economically applied in the capsule filling machine by comparing the automatic vacuum feeding with other loading forms.
1 Structure and principle of automatic vacuum feeder 1.1 Structure of automatic vacuum feeder The Feiyun plant configures the filling method of capsule filling machine as automatic vacuum feeder (as shown in Figure 1), which is host and level It consists of sensors, feeders, ducts, connecting plates, connecting pipes, poles and controls. Among them, the host will assume the function of the transfer path of the powder or other materials input into the silo, the occurrence of the vacuum source and the intermittent cleaning of the built-in filter bag; the level sensor will control the amount of feed for automatic feeding and make the capsule The level of the filling machine hopper is kept within the required range.
1.2 Principle of automatic vacuum feeder When the automatic vacuum feeder is working, the main working chamber generates high-speed flowing air under the negative pressure of 0.03MPa, and the material in the turnover drum is sucked into the working chamber of the main machine through the conveying pipe, and then inhaled. The material is spirally dropped into the hopper of the capsule filling machine by its own weight. The imported filter cloth is placed on the vacuum gas source and the material passage for clean filtration, and along with the loading process, the fine powder adhering to the filter cloth is cleaned by mechanical automatic shaking to prevent the vacuum passage from being blocked.
The automatic control process: there is a lower sensor in the middle and lower position of the hopper of the capsule filling machine (the position can be determined according to the size of the hopper and the production speed), and the other upper sensor is fixed on the bottom of the automatic vacuum loading machine. When the material level in the hopper of the capsule filling machine drops to the lowering level, the sensor sends a signal to the controller, so that the main vacuum airflow of the automatic vacuum loading machine works, the material is sucked into the working chamber of the host, and the control system automatically stops according to the set time. The material in the working chamber of the main machine is pressed into the hopper of the capsule filling machine to complete the automatic feeding process. In this way, the cycle is repeated, and the automatic vacuum feeder will complete the whole process of inputting the material in the turnover drum into the hopper of the capsule filling machine.
2Comparison of automatic vacuum feeder and other feeding methods For the filling of capsule filling machine, mostly loose granules or powdery materials (also small tablets) are transported, although capsule filling machines can be used in a variety of ways. However, with the development of the modernization of the pharmaceutical industry, the shortcomings of traditional artificial ladders showing the labor intensity and serious dust pollution will tend to be eliminated. However, the rest of the feeding methods are often filled with constant positive pressure, automatic vacuum feeding and material lifting, etc. These methods can basically achieve the purpose of reducing labor intensity, reducing dust pollution and protecting drugs, but each Pros and cons, the following comprehensive comparison 2 (as shown in Table 1):
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The comprehensive comparison of the above table shows that the automatic vacuum feeding machine is preferred in the filling method of the capsule filling machine, and it can also be matched with the whole machine of the capsule filling machine.
3 automatic vacuum feeder in the capsule filling machine application characteristics 3.1 automatic vacuum feeder in the capsule filling machine application of the domestic automatic vacuum feeder manufacturers and varieties are many, can be described as different. In many automatic vacuum feeders, Feiyun Factory recently launched an automatic vacuum feeder matched with capsule filling machine, which is based on the advanced technology of Germany, Sweden and other countries, combined with national conditions to optimize and transform, and other products. Compared to (of course there are better products in China) has the following characteristics:
(1) The hopper is integrated with the vacuum source, compact and compact, no dust pollution and low noise;
(2) Simple installation, can be installed anywhere, only need 220V power supply;
(3) It is easy to operate, the automatic vacuum feeding device is fast, and the conveying capacity can be adapted to the filling capacity of the capsule filling machine. This can be confirmed by experimental data 3 (as shown in Table 2). At the same time, the control has reached an intelligent, automatic loading operation;
(5) The vacuum loading can basically reach the delamination problem of the mixture-free material, which can be confirmed by experimental data 3 (as shown in Table 3);
3.2 The economical application of automatic vacuum feeder in capsule filling machine At present, the common form of filling of capsule filling machine is automatic vacuum feeding machine and bucket elevator lifting, which have their own advantages, and are designed for common solid preparation workshops (that is, using non-hopper mixing). Machine production process, due to the use of two-dimensional or multi-directional mixing, Zui still needs to transfer the barrel.) On the basis of the need for turnover of the barrel, through the comparison of the economic operation costs of the two can be seen: automatic vacuum feeder Delivery is a good choice for Zui.
Calculate the total operating cost of each of the two working days by 600kg per working day (as shown in Table 4):
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From the above calculations, it can be known that the total operating cost of the automatic filling machine of the capsule filling device is 2.091-1.751=0.34 million compared with the total running cost of the filling machine of the filling machine. Yuan, the cost savings can be recovered within 6 years of the automatic vacuum feeder investment, it can be seen that the operating cost of the automatic vacuum feeder of the capsule filling machine is low.
4Overview This paper starts with the basic overview of the filling of the capsule filling machine, describes the structure and principle of the automatic vacuum loading machine, and comprehensively analyzes the Ruiyun Feiyun Machinery by comparing the automatic vacuum feeding with other loading forms. The automatic vacuum feeder of the factory has practical and economical features in the application of capsule filling machine. The conclusions are as follows:
The application of automatic vacuum feeder on the capsule filling machine has the comprehensive features that other feeding mechanisms can't replace, both practical and economical. It is also the first plan usually built in the workshop.
Since the beginning of the 1980s, the large-scale application of capsule filling machines in the production of hard capsules in the country has gone through several processes: from the original artificial ladder to the conveyor belt, from the barrel to the positive Pressure delivery, from vacuum delivery to automatic vacuum delivery, in addition to cross-layer air control self-weight delivery. The development of these processes shows the progress made by the way of loading and unloading.
At present, in the production of solid preparations in the country, except for a few, the capsule filling machine is still extended by manual ladders or other methods of feeding, and the automatic vacuum feeding machine and the barrel lifting machine are mainly used for feeding, and the two methods are different. With the maturity of the automatic vacuum feeder technology and the structural limitations of the workshop under construction, the automatic vacuum feeder will show a practical side. However, the purpose of these two feeding methods is to overcome the imperfections in the manual ladder dumping method: (1) Since the mixed powder needs to be placed in a rotating drum and transported to the capsule filling process, The original artificial ladder dumping method, such as the process of loading and unloading, will cause dust to fly, polluting the site, equipment, operators, etc., which is also extremely detrimental to air purification, environmental sanitation, and personnel health. At the same time, the production site and production equipment are not easy to clean, and the filtration system of the purification system is easily blocked or damaged, resulting in poor filtration effect and reduced purification level. (2) In the manual ladder dumping method, the labor intensity of the operator engaged in transportation and ladder dumping is also great.
This article will use Rui'an Feiyun Machinery Factory (hereinafter referred to as Feiyun Factory) to launch the automatic vacuum feeder matched with the capsule filling machine, starting from the basic overview of the filling of the capsule filling machine, and the automatic vacuum loading machine. The structure and principle are described, and the automatic vacuum feeder is practically and economically applied in the capsule filling machine by comparing the automatic vacuum feeding with other loading forms.
1 Structure and principle of automatic vacuum feeder 1.1 Structure of automatic vacuum feeder The Feiyun plant configures the filling method of capsule filling machine as automatic vacuum feeder (as shown in Figure 1), which is host and level It consists of sensors, feeders, ducts, connecting plates, connecting pipes, poles and controls. Among them, the host will assume the function of the transfer path of the powder or other materials input into the silo, the occurrence of the vacuum source and the intermittent cleaning of the built-in filter bag; the level sensor will control the amount of feed for automatic feeding and make the capsule The level of the filling machine hopper is kept within the required range.
1.2 Principle of automatic vacuum feeder When the automatic vacuum feeder is working, the main working chamber generates high-speed flowing air under the negative pressure of 0.03MPa, and the material in the turnover drum is sucked into the working chamber of the main machine through the conveying pipe, and then inhaled. The material is spirally dropped into the hopper of the capsule filling machine by its own weight. The imported filter cloth is placed on the vacuum gas source and the material passage for clean filtration, and along with the loading process, the fine powder adhering to the filter cloth is cleaned by mechanical automatic shaking to prevent the vacuum passage from being blocked.
The automatic control process: there is a lower sensor in the middle and lower position of the hopper of the capsule filling machine (the position can be determined according to the size of the hopper and the production speed), and the other upper sensor is fixed on the bottom of the automatic vacuum loading machine. When the material level in the hopper of the capsule filling machine drops to the lowering level, the sensor sends a signal to the controller, so that the main vacuum airflow of the automatic vacuum loading machine works, the material is sucked into the working chamber of the host, and the control system automatically stops according to the set time. The material in the working chamber of the main machine is pressed into the hopper of the capsule filling machine to complete the automatic feeding process. In this way, the cycle is repeated, and the automatic vacuum feeder will complete the whole process of inputting the material in the turnover drum into the hopper of the capsule filling machine.
2Comparison of automatic vacuum feeder and other feeding methods For the filling of capsule filling machine, mostly loose granules or powdery materials (also small tablets) are transported, although capsule filling machines can be used in a variety of ways. However, with the development of the modernization of the pharmaceutical industry, the shortcomings of traditional artificial ladders showing the labor intensity and serious dust pollution will tend to be eliminated. However, the rest of the feeding methods are often filled with constant positive pressure, automatic vacuum feeding and material lifting, etc. These methods can basically achieve the purpose of reducing labor intensity, reducing dust pollution and protecting drugs, but each Pros and cons, the following comprehensive comparison 2 (as shown in Table 1):
The comprehensive comparison of the above table shows that the automatic vacuum feeding machine is preferred in the filling method of the capsule filling machine, and it can also be matched with the whole machine of the capsule filling machine.
3 automatic vacuum feeder in the capsule filling machine application characteristics 3.1 automatic vacuum feeder in the capsule filling machine application of the domestic automatic vacuum feeder manufacturers and varieties are many, can be described as different. In many automatic vacuum feeders, Feiyun Factory recently launched an automatic vacuum feeder matched with capsule filling machine, which is based on the advanced technology of Germany, Sweden and other countries, combined with national conditions to optimize and transform, and other products. Compared to (of course there are better products in China) has the following characteristics:
(1) The hopper is integrated with the vacuum source, compact and compact, no dust pollution and low noise;
(2) Simple installation, can be installed anywhere, only need 220V power supply;
(3) It is easy to operate, the automatic vacuum feeding device is fast, and the conveying capacity can be adapted to the filling capacity of the capsule filling machine. This can be confirmed by experimental data 3 (as shown in Table 2). At the same time, the control has reached an intelligent, automatic loading operation;
Table 2 Experimental data 1
(4) The mechanical cleaning method is adopted on the cleaning of the adsorbent of the filter medium, instead of the compressed air backflushing method commonly used in similar equipment, thereby avoiding the contamination of the compressed air which may contain oil or water stains due to drug contact, because the medicine There are specific requirements for compressed air (such as oil content less than 0.3%, dust particles less than 0.01μm), while also eliminating the installation and operation costs of compressed air pipelines; materials | Transport length | Feeding time | Cleaning time | Single delivery | transfer speed |
16 mesh particles | 4m | 10sec | 1min | 5-7kg | 300kg/h |
(5) The vacuum loading can basically reach the delamination problem of the mixture-free material, which can be confirmed by experimental data 3 (as shown in Table 3);
Table 3 experimental data 2
(6) It can be applied to the clean workshop with a height of 2.7m. The automatic vacuum feeder only needs to be installed on the frame of the capsule filling machine. The total height of the machine with the vacuum loading device is about 2.37m (ie the machine height + 500mm), can be easily applied to most workshop applications. The feeding of the drum hoist is difficult to apply to the 2.7m high-rise workshop. In terms of the 100kg loading specification of the fixed lifting feeder, the height of the column is 2715mm, so there is a certain requirement for the height of the workshop using the lifting feeder. Material (mixture) | Mixing degree before loading | Mixing after loading | Transport length |
Blank grain / jade powder | 50% | 50% (no change) | 4m |
Rice/millet | 50% | 50% (no change) | 4m |
3.2 The economical application of automatic vacuum feeder in capsule filling machine At present, the common form of filling of capsule filling machine is automatic vacuum feeding machine and bucket elevator lifting, which have their own advantages, and are designed for common solid preparation workshops (that is, using non-hopper mixing). Machine production process, due to the use of two-dimensional or multi-directional mixing, Zui still needs to transfer the barrel.) On the basis of the need for turnover of the barrel, through the comparison of the economic operation costs of the two can be seen: automatic vacuum feeder Delivery is a good choice for Zui.
Calculate the total operating cost of each of the two working days by 600kg per working day (as shown in Table 4):
From the above calculations, it can be known that the total operating cost of the automatic filling machine of the capsule filling device is 2.091-1.751=0.34 million compared with the total running cost of the filling machine of the filling machine. Yuan, the cost savings can be recovered within 6 years of the automatic vacuum feeder investment, it can be seen that the operating cost of the automatic vacuum feeder of the capsule filling machine is low.
4Overview This paper starts with the basic overview of the filling of the capsule filling machine, describes the structure and principle of the automatic vacuum loading machine, and comprehensively analyzes the Ruiyun Feiyun Machinery by comparing the automatic vacuum feeding with other loading forms. The automatic vacuum feeder of the factory has practical and economical features in the application of capsule filling machine. The conclusions are as follows:
The application of automatic vacuum feeder on the capsule filling machine has the comprehensive features that other feeding mechanisms can't replace, both practical and economical. It is also the first plan usually built in the workshop.
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