Exhaust type decoction packaging machine

Abstract

The utility model relates to an exhaust type decoction packaging machine which effectively solves the problem that air remains in a liquid packaging bag. According to the technical scheme, the device comprises a liquid medicine tank and an evaporation tank, a filling pipe is connected to the lower end of the liquid medicine tank, a first electromagnetic switch valve is installed on the filling pipe, an electric heater is installed in the evaporation tank and can boil water in the evaporation tank into steam, a steam pipe is connected to the top of the evaporation tank, and the lower end of the steam pipe and the filling pipe are inserted into a packaging bag together. The lower end of the steam pipe is higher than that of the filling pipe; in the filling process, water vapor homologous with medicine decocting is used for discharging air in the packaging bag, other foreign matter cannot be introduced into the packaging bag, inert gas does not need to be prepared, the situation that the quality guarantee period is shortened due to the fact that a large amount of air is sealed in the packaging bag can be avoided, on the other hand, the water vapor can be condensed to enable the packaging bag to be shrunken back, occupied space can be reduced, and cost is reduced. And the risk that the packaging bag is broken can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical packaging, specifically a vented decoction packaging machine. Background Technology

[0002] Currently, traditional Chinese medicine decoctions are generally packaged and sealed in bags. During the filling process, some air remains above the liquid level inside the bag and is sealed inside. This shortens the shelf life of the decoction and increases the risk of the bag breaking. Utility model patent application number CN202022153693.1 discloses a vertical liquid packaging machine with a venting function. After filling and before sealing, it uses two clamps to squeeze the bag to expel the air. However, this method is prone to incomplete air removal or liquid overflow. Moreover, because it uses mechanical compression, the size, position, and stroke of the compression plates are fixed, making it impossible to flexibly adjust according to the bag specifications and filling volume.

[0003] In addition, packaging bags are often filled with inert gases such as nitrogen to purge the air. Packaging bags using this method are in an expanded state, resulting in a large packaging volume during storage and transportation, and are very prone to bursting. Summary of the Invention

[0004] This invention provides a venting-type decoction packaging machine, the purpose of which is to solve the problem of residual air inside liquid packaging bags.

[0005] The technical solution includes a liquid medicine tank and an evaporator. The lower end of the liquid medicine tank is connected to a filling pipe, and a first electromagnetic switch valve is installed on the filling pipe. An electric heater is installed inside the evaporator, which can boil the water in the evaporator into steam. A steam pipe is connected to the top of the evaporator. The lower end of the steam pipe is inserted into the packaging bag together with the filling pipe, and the lower end of the steam pipe is higher than the lower end of the filling pipe.

[0006] The lower end of the steam pipe is connected to a diffuser cover, which is covered with a number of steam holes.

[0007] The diffusion shroud is coaxially sleeved at the lower end of the filling tube.

[0008] Both the diffuser and the steam pipe are flat tubes.

[0009] The evaporator is equipped with a liquid level sensor and a replenishment pipe, and the replenishment pipe is equipped with a second electromagnetic switch valve.

[0010] During the filling process, this invention uses water vapor, which is of the same origin as the decoction, to expel the air from the packaging bag. This prevents the introduction of other foreign objects into the packaging bag and eliminates the need to prepare inert gas. It avoids the problem of sealing a large amount of air into the packaging bag, which shortens the shelf life. On the other hand, the water vapor will condense and cause the packaging bag to collapse, which reduces the space occupied and the risk of the packaging bag breaking. Attached Figure Description

[0011] Figure 1 This is the front sectional view of the present invention.

[0012] Figure 2 for Figure 1 A magnified view of position A in the middle.

[0013] Figure 3 A three-dimensional view of the filling tube and diffuser. Detailed Implementation

[0014] Referring to the accompanying drawings, this utility model includes a medicine liquid tank 1 and an evaporator 2. The lower end of the medicine liquid tank 1 is connected to a filling pipe 3, and a first electromagnetic switch valve 4 is installed on the filling pipe 3. The decocted medicine is poured into the medicine liquid tank 1 and then filled into a packaging bag through the filling pipe 3. The evaporator 2 is equipped with an electric heater 5, which can boil the water in the evaporator 2 into steam. The top of the evaporator 2 is connected to a steam pipe 6, and the lower end of the steam pipe 6 is inserted into the packaging bag together with the filling pipe 3. The lower end of the steam pipe 6 is higher than the lower end of the filling pipe 3. When the filling pipe 3 fills the packaging bag with medicine liquid, the steam enters the packaging bag through the steam pipe 6, expelling the air at the top of the packaging bag. This avoids a large amount of air remaining in the packaging bag when it is sealed. After sealing, the steam gradually condenses into water droplets, so that the packaging bag will not be in a bulging state, which can save storage space and also avoid crushing and breaking.

[0015] The lower end of the steam pipe 6 is connected to a diffuser 7, which is densely covered with a number of steam holes 8. Steam enters the diffuser 7 through the steam pipe 6 and then diffuses to the surrounding area through the steam holes 8.

[0016] The diffuser 7 is coaxially sleeved on the lower end of the filling tube 3 and inserted into the packaging bag together with the filling tube 3.

[0017] Both the diffuser 7 and the steam pipe 6 are flat tubes, which makes them easier to insert into the packaging bag.

[0018] The evaporator 2 is equipped with a liquid level sensor 9 and a replenishment pipe 10. The replenishment pipe 10 is equipped with a second electromagnetic switch valve 11. The liquid level sensor 9 monitors the liquid level in the evaporator 2. When the liquid level in the evaporator 2 is lower than the set liquid level, the second electromagnetic switch is turned on, and the replenishment pipe 10 replenishes liquid into the evaporator 2.

[0019] In use, the prepared decoction is placed into the medicine tank 1, and water from the same source as the decoction is added to the evaporator 2. The electric heater 5 boils the water in the evaporator 2 to continuously generate steam. The lower end of the filling pipe 3 and the diffuser 7 are inserted into the packaging bag together. The decoction in the medicine tank 1 is poured into the packaging bag through the filling pipe 3. At the same time, the steam enters the diffuser 7 through the steam pipe 6, and then is blown into the packaging bag through the steam holes 8 on the diffuser 7 to expel the air above the liquid level in the packaging bag. When the sealing roller seals the packaging bag, it can prevent a large amount of air from being sealed into the packaging bag. After sealing, the steam in the packaging bag gradually condenses, and the bulging packaging bag gradually deflates.

[0020] This invention utilizes water vapor to effectively expel air from the packaging bag. The condensation of the water vapor causes the packaging bag to deflate, reducing the space occupied and the risk of the packaging bag breaking.

Claims

1. A vented decoction packaging machine, characterized in that, It includes a liquid medicine tank (1) and an evaporator (2). The lower end of the liquid medicine tank (1) is connected to a filling pipe (3). The filling pipe (3) is equipped with a first electromagnetic switch valve (4). The evaporator (2) is equipped with an electric heater (5) that can boil the water in the evaporator (2) into steam. The top of the evaporator (2) is connected to a steam pipe (6). The lower end of the steam pipe (6) is inserted into the packaging bag together with the filling pipe (3). The lower end of the steam pipe (6) is higher than the lower end of the filling pipe (3).

2. The exhaust-type decoction packaging machine according to claim 1, characterized in that, The lower end of the steam pipe (6) is connected to a diffuser (7), and the diffuser (7) is densely covered with a number of steam holes (8).

3. The exhaust-type decoction packaging machine according to claim 2, characterized in that, The diffusion hood (7) is coaxially sleeved at the lower end of the filling tube (3).

4. A vented decoction packaging machine according to claim 2 or 3, characterized in that, Both the diffuser hood (7) and the steam pipe (6) are flat tubes.

5. A degassing type decoction packaging machine according to claim 1, characterized in that, The evaporator (2) is equipped with a liquid level sensor (9) and a replenishment pipe (10), and the replenishment pipe (10) is equipped with a second electromagnetic switch valve (11).

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