CN2063920U - Vacuum gas filling packaging machine - Google Patents

Abstract

The utility model relates to a vacuum gas filling packaging machine, which is provided with a sealable vacuum chamber, and the vacuum chamber can be vacuumized through a vacuum pump. The vacuum chamber is internally provided with a heat sealing element for inflating and sealing the packaging bag filled with articles. The vacuum chamber is internally provided with a plurality of groups of inflation tubes in an extending mode, the pipeline of each group of inflation tubes is provided with an air storage cylinder, the inlet end and the outlet end of each air storage cylinder are provided with a control valve, and each air storage cylinder is pre-stored with gas enough for filling one packaging bag before the vacuum chamber is vacuumized, so that after the packaging bags are vacuumized, the filling of a plurality of packaging bags with uniform gas can be instantly completed at the same time, and the packaging bags are sealed in a hot melting mode.

Description

The utility model relates to a vacuum gas filling and packaging machine, and further relates to a vacuum gas filling and packaging machine capable of simultaneously filling and sealing a plurality of packaging bags (or containers) containing food (or other items to be kept fresh) with nitrogen. .

A common vacuum gas filling packaging machine includes a vacuum chamber that can be evacuated, and a heat-sealing element is arranged at an appropriate position in the vacuum chamber to seal the packaging bag containing food or other articles. The inflatable tube filled with gas, when the vacuum chamber is evacuated, the inflatable tube is filled with gas in an instant, and the heat sealing element completes the sealing, because the gas and sealing must be completed in an instant, otherwise the gas will be trapped by the vacuum chamber. If the pressure is too low, it overflows. Therefore, in the case of the same gas source, only one set of inflatable tubes can be used. The pressure and flow rate of the inflation pipeline are insufficient to complete the gas filling of the container in a very short time, so that the bag mouth cannot be closed in time before the gas overflows, or when the bag mouth is closed, the container has not been filled with enough gas, or The amount of gas in the bag is not uniform, which affects the appearance, and only one set of inflation tubes is provided, so the production speed is too slow.

The purpose of this utility model is to provide a vacuum gas filling and sealing machine, which is equipped with multiple sets of gas tubes, and through the setting of the gas storage cylinders of each gas tube, the gas filling of several containers can be completed simultaneously at the same time.

According to the above purpose of the present utility model, a vacuum gas filling and packaging machine is provided with a sealable vacuum chamber, which can be evacuated by a vacuum pump, and a heat-sealing element is provided at an appropriate position in the vacuum chamber for installation. The main features of this utility model are:

Multiple groups of gas-filling tubes for filling the packaging bag (or container) with gas extend into the vacuum chamber, and each group of gas-filling tubes is equipped with an air storage tank, and the inlet and outlet ends of the gas storage tank are controlled by a The valve is used to control the air intake and exhaust, so that each air storage cylinder stores enough gas to fill a packaging bag (or container) before the vacuum chamber is evacuated, so that the air in the packaging bag (container) can be pumped. After being vacuumed, it can simultaneously fill multiple packaging bags (containers) with an equal amount of gas and heat them to seal them.

Describe the utility model in detail below in conjunction with accompanying drawing and embodiment:

Fig. 1 is a three-dimensional schematic diagram of a preferred embodiment of the present invention.

Fig. 2 is a schematic diagram of the arrangement of the inflatable tube in a preferred embodiment of the present invention.

Fig. 3 is a schematic diagram of the use of a preferred embodiment of the utility model.

Fig. 4 is a schematic perspective view of a preferred embodiment of the present invention, wherein the air outlet of the inflatable tube is flat.

Fig. 5 is a schematic view of a preferred embodiment of the present invention, wherein the air outlet of the inflatable tube is flat.

As shown in the figures, the vacuum gas filling packaging machine 10 of the present invention is provided with a sealable vacuum chamber 11 above it, and the bottom side of the vacuum chamber 11 is provided with a pipeline and connected with a vacuum pump 12. After the cover is closed, , can be evacuated by vacuum pump 12. As shown in Figure 3, predetermined number of inflatable tubes 20 are arranged on the side of vacuum chamber 11, and inflatable tubes 20 extend to the bottom side position of vacuum chamber 11, and at vacuum chamber 11 bottom side positions, each inflatable tube 20 is far from the exit position Gas storage tanks 21 are arranged at approximately equal distances, the inlet end of the gas storage tank 21 is provided with a solenoid valve 22, and the outlet end is provided with a solenoid valve 23, and the inlet end of each gas storage tank 21 is connected to a gas source outside the body 24 on. The gas source 24 is a high-pressure gas storage cylinder, which is connected to the electromagnetic valve 22 at the inlet end of each gas storage cylinder 21 through a pipeline. The control valve at the inlet of the air storage tank can also be a pressure valve controlled by the pressure in the air storage tank. The air storage cylinders 21 are arranged in the space at the bottom of the vacuum chamber 11, and keep approximately equal distances from the vacuum chamber 11, and the solenoid valves 22, 23 are respectively located near the lower and upper outlets of the air storage cylinders. The two sides of the vacuum chamber 11 are provided with heat-sealing elements 14 for heat-melt sealing of packaging bags containing food or other items to be kept fresh. The main difference between the utility model and ordinary packaging machines is that the vacuum chamber 11 stretches into a plurality of groups of inflation tubes 20 for filling gas in packaging bags or containers, and as shown in Figure 2 and Figure 3, each group of inflation tubes 20 is provided with an air storage tank 21 on the pipeline, the gas storage tank The inlet and outlet ports of 21 all use an electromagnetic control valve 22, 23 to control the intake and exhaust, and the inlet port of each gas storage tank 21 is connected to the main line 241 of the same gas source 24.

According to the above structure, when the vacuum gas filling packaging machine 10 is placing the processed product or vacuuming it, the electromagnetic control valve 22 at the inlet end of each air storage cylinder 21 is first opened, and there is enough time for each air storage cylinder 21 to store enough Fill a packaging bag 30 (see Figure 3) with gas, and then close the electromagnetic control valve 22. After the vacuum chamber 11 is evacuated, each electromagnetic control valve 23 opens at the same time receiving the signal, and completes multiple packaging bags at the same time in an instant. 30 (container) is filled with equal amount of gas, and it is heat-melted and sealed. Because the utility model adopts each gas storage cylinder 21 to store enough gas for filling in advance, after the vacuum is drawn out, each gas filling tube 21 has an equal amount of sufficient pressure (higher than the pressure in the vacuum chamber) and flow rate of gas for filling, so that the machine's The benefit is higher.

In addition, the air outlet 25 of the inflatable tube 20 shown in Figures 1 and 2 is in the shape of a round hole, this structure is suitable for gas filling of general solid or larger particle food or other items, but if the contents of the packaging bag 30 are in powder form At this time, the round hole-shaped air outlet 25 is filled with gas from the center of the mouth of the packaging bag 30, which will easily cause the vortex air flow to blow and scatter the powder, and scatter on the heat-melting surface of the mouth of the bag, making the sealing effect poor. Therefore, the structure shown in Fig. 4 and Fig. 5 is aimed at powdered food or other articles, and the air outlet 26 of its inflation tube 20 is designed into a flat shape of appropriate width, so that the flat air outlet 26 is opened by the packaging bag 30 The entire length of the bag is filled with gas of appropriate pressure, so that the powdery articles in the packaging bag 30 will not overflow to the mouth of the bag.

Claims (5)

1, a kind of vacuum gas filling and packaging machine, it is provided with a sealable vacuum chamber, and vacuum chamber communicates by pipeline with a pump housing, is provided with the heat seal elements that is used for sealing bags in this vacuum chamber, it is characterized in that:

Stretch into many groups in this vacuum chamber and charge the appendix that gas is used for packaging bag, appendix is located at the side of vacuum chamber and extends to the position, bottom side of vacuum chamber, be equipped with an air receiver on the pipeline of each group appendix of position, vacuum chamber bottom side, the arrival end of this air receiver and exit end are equipped with a valve.

2, vacuum gas filling and packaging machine as claimed in claim 1 is characterized in that each air receiver arrival end and exit end are equipped with a solenoid electric valve.

3, vacuum gas filling and packaging machine as claimed in claim 2 is characterized in that the control cock of this air receiver arrival end also can be a pressure control valve.

4, vacuum gas filling and packaging machine as claimed in claim 1, the air extractor duct that it is characterized in that the appendix of described inflation usefulness is a flats.

5, vacuum gas filling and packaging machine as claimed in claim 1, the air extractor duct that it is characterized in that the appendix of described inflation usefulness are circular.

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