Constant-temperature air supply device

Abstract

The utility model discloses a constant-temperature air supply device which comprises an air supply structure and a filling structure, the air supply structure is sleeved on the outer side of the filling structure, the air supply structure and the filling structure are mutually combined to play a role, and the air supply structure supplies constant-temperature, constant-pressure and constant-flow clean air into a strip-shaped bag in an active mode and exhausts normal-temperature cold air in the original strip-shaped bag. And then the filling structure is filled with materials, so that the poor sealing caused by condensed water vapor generated at the sealing position during high-temperature filling of the strip package can be prevented.

Description

Technical Field

[0001] The utility model relates to the field of bag material filling, in particular to a constant temperature air replenishing device. Background Art

[0002] At present, when liquid stick packs are filled at high temperatures, the material temperature is much higher than the workshop ambient temperature. When the high-temperature material is filled into the stick pack, it encounters cold and liquefies on the inner wall of the stick pack to form small water droplets. After the horizontal seal is pressed, the small water droplets are sealed in the seal, resulting in poor sealing of the stick pack.

[0003] For example, the Chinese patent with the announcement number CN220948727U discloses a milk powder filling tube used in a box line filling machine, comprising a lower powder tube, an outer sleeve sleeved on the outside of the lower powder tube, and a nitrogen filling tube with an air outlet extending to the interlayer space formed by the lower powder tube and the outer sleeve; the nitrogen filling tube has an end face sealed at the air outlet end, and radial air outlet holes are opened on the side wall; the openings of the air outlet holes are located on the circumference of the lower powder tube. The utility model changes the nitrogen filling method by adjusting the position of the air outlet hole of the nitrogen filling tube, and improves the original nitrogen filling method of pulsed downward straight rush to a nitrogen filling method of rotary air intake filling, thereby reducing the instantaneous downward filling flow rate of nitrogen. The nitrogen filling airflow has no direct impact force on the milk powder, greatly reducing the generation of floating powder, and thus avoiding the phenomenon of powder trapped in the horizontal seal. The utility model is suitable for use as a filling tube when nitrogen-filling milk powder for packaging.

[0004] For example, the Chinese patent with publication number CN106439481A discloses a filling process for refrigerant gas cylinders with a capacity of less than 1 liter. The purpose is to provide a method that can ensure that the gas filled in the gas cylinder meets the requirements, and has the characteristics of simple process and low loss. The technical solution is: a method for filling refrigerant gas cylinders with a capacity of less than 1 liter, which is carried out according to the following steps: 1) first evacuate the gas cylinder, and then fill it with a small amount of refrigerant gas to be filled to eliminate the vacuum; 2) then evacuate the gas cylinder again, and then fill it with the refrigerant gas to be filled to eliminate the vacuum; 3) repeat step 2) at least once; and then fill it with refrigerant liquid; the purity, moisture, and non-condensable gas requirements of the refrigerant gas in the gas cylinder can be met. The vacuum in step 1) and step 2) refers to the air pressure in the gas cylinder being less than or equal to 80Pa.

[0005] In summary, although there are gas filling devices in the existing technology, they cannot solve the filling and sealing problems of liquid stick packs during high-temperature filling. If the material is cooled, it will liquefy and form small water droplets on the inner wall of the stick pack. After the horizontal seal is pressed, the small water droplets will be sealed in the seal, resulting in poor sealing of the stick pack. Utility Model Content

[0006] In view of the deficiencies in the prior art, the present invention provides a constant temperature air replenishing device to solve the above problems.

[0007] In order to achieve the above object, the utility model discloses a kind of constant temperature air supplement device, including air supplement structure, filling structure, the air supplement structure is set in filling structure outside,

[0008] A constant temperature air supplement device, comprising an air supplement structure and a filling structure, the air supplement structure is set outside the filling structure,

[0009] The air supplement structure comprises an air supplement port and an air supplement pipe, and the air supplement port is arranged on the air supplement pipe,

[0010] The filling structure comprises a filling port and a filling pipe, the filling port is connected with the filling pipe, and the filling pipe is coaxially arranged in the air supplement pipe.

[0011] Preferably, the air supplement port is arranged on the side of the air supplement pipe.

[0012] Preferably, the filling port is arranged on the top of the filling pipe and is connected with the inside of the filling pipe.

[0013] Preferably, a gap is left between the air supplement pipe and the filling pipe.

[0014] Preferably, the air supplement pipe is provided with a constant temperature air source device on one side.

[0015] Preferably, the constant temperature air source device comprises a gas supply device, a filter device, a heating device and a flow valve.

[0016] Preferably, the gas supply device is connected with the filter device and the heating device in sequence.

[0017] Preferably, one end of the flow valve is connected with the heating device, and the other end is connected with the air supplement port.

[0018] Compared with the prior art, the utility model discloses a kind of constant temperature air supplement device, including air supplement structure, filling structure, the air supplement structure is set in filling structure outside, both mutually combined use play a role, air supplement structure is supplemented with constant temperature, constant pressure, constant flow clean gas in the active form to strip bag, the cold air of normal temperature in the original strip bag is discharged, and then filling structure fills in material, can prevent strip bag when high-temperature filling to produce condensation water vapor at sealing place, leading to poor sealing. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic view of the utility model constant temperature air supplement device;

[0020] Figure 2 It is the structure schematic view of the utility model constant temperature air supplement device;

[0021] Figure 3 It is the structure schematic view of constant temperature air supplement device of the utility model;

[0022] Figure 4 It is the working state view of constant temperature air supplement device of the utility model;

[0023] Figure 5 It is the working state view of constant temperature air supplement device of the utility model;

[0024] Figure 6 It is the working state view of constant temperature air supplement device of the utility model;

[0025] Figure 7 It is the composition schematic view of constant temperature air source equipment of the utility model. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0027] A constant temperature air supplement device, comprising air supplement structure 1, filling structure 2, the air supplement structure 1 is set outside filling structure 2, the air supplement structure 1 includes air supplement port 11, air supplement pipe 12, the air supplement port 11 is opened on air supplement pipe 12, the filling structure 2 includes filling port 21, filling pipe 22, the filling port 21 is connected with filling pipe 22, the filling pipe 22 is coaxially arranged in air supplement pipe 12.

[0028] The air supplement port 11 is opened in the side of air supplement pipe 12, the filling port 21 is opened in the top of filling pipe 22, and is connected with the inside of filling pipe 22, the gap is left between air supplement pipe 12 and filling pipe 22, and the size of the gap, that is, the diameter ratio of air supplement pipe 12 and filling pipe 22, can be changed according to actual work requirements, one side of air supplement pipe 12 is provided with constant temperature air source equipment, the constant temperature air source equipment includes gas supply device, filter device, heating device, flow valve, the gas supply device is connected with filter device and heating device in turn, one end of the flow valve is connected with heating device, and the other end is connected with air supplement port 11.

[0029] It is worth noting that the gas supply device is the gas supply end of the gas source, the filter device is responsible for filtering the gas source to make the gas source clean, the heating device can control the temperature of heating, so that the temperature of the gas source reaches the appropriate degree Celsius, the flow valve controls the gas source flow pressure supplied to air supplement pipe 12, the four devices of the gas supply device, the filter device, the heating device and the flow valve are all prior art, but the combination of the four devices with air supplement pipe 12 is the core point, therefore, in the present scheme, it is not described again, and only the device meeting the above functions can be used.

[0030] Working mode: constant temperature clean gas enters into the air supplement pipe 12 through the air supplement port 11, the normal temperature cold air in the strip bag is discharged through the air supplement pipe 12, and then the constant temperature clean air is flushed into the air supplement pipe 12, the material enters into the filling pipe 22 through the filling port 21, and is filled into the strip bag, the filling work is completed, and the condensed water vapor is prevented from being generated at the sealing portion during high-temperature filling, so that the sealing of the strip bag is not poor.

[0031] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments consistent with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0032] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments consistent with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0033] The preferred embodiments of the present application have been described above with the preferred embodiments; the present application is not limited to the above examples, and for those skilled in the art, various modifications and changes can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A constant temperature air supply device, characterized in that: It comprises an air-infusing structure (1) and a filling structure (2), wherein the air-infusing structure (1) is sleeved on the outside of the filling structure (2). The air supply structure (1) comprises an air supply port (11) and an air supply pipe (12), wherein the air supply port (11) is provided on the air supply pipe (12). The filling structure (2) comprises a filling port (21) and a filling pipe (22); the filling port (21) is connected to the filling pipe (22); and the filling pipe (22) is coaxially arranged in the air supply pipe (12).

2. The constant temperature air supply device according to claim 1, characterized in that: The air supply port (11) is opened on the side of the air supply pipe (12).

3. The constant temperature air supply device according to claim 1, characterized in that: The filling port (21) is opened at the top of the filling tube (22) and is connected to the inside of the filling tube (22).

4. The constant temperature air supply device according to claim 1, characterized in that: A gap is left between the air supply pipe (12) and the filling pipe (22).

5. The constant temperature air supply device according to claim 1, characterized in that: A constant temperature air source device is provided on one side of the air supply pipe (12).

6. The constant temperature air supply device according to claim 5, characterized in that: The constant temperature gas source equipment includes a gas supply device, a filtering device, a heating device, and a flow valve.

7. The constant temperature air supply device according to claim 6, characterized in that: The air supply device is connected to the filtering device and the heating device in sequence.

8. The constant temperature air supply device according to claim 7, characterized in that: One end of the flow valve is connected to the heating device, and the other end is connected to the air supply port (11).

Images