CN2536498Y - Powder vacuum packaging machine - Google Patents

Abstract

The utility model discloses a powder vacuum packaging machine, which comprises a bracket, a feeding device, a vacuum packaging chamber and a dust collecting device, wherein the vacuum packaging chamber is provided with a vacuum tube connected to a vacuum pump, a vacuum release tube communicated with the atmosphere and a feeding nozzle, valves are arranged in the vacuum tube and the vacuum release tube, a feeding valve is arranged in a feeding tube in the feeding device, and the feeding tube is connected with the feeding nozzle; the dust collecting device is composed of a dust removing pipe and a dust removing cover which are connected with the air suction pump, the dust removing pipe is provided with a valve, the dust removing pipe is positioned at the bottom of the vacuum packaging chamber and extends into the vacuum packaging chamber, and the dust removing cover is positioned right above the top of the vacuum packaging chamber. The utility model discloses utilize the pressure differential between vacuum packaging room and the feedway to inhale the powder product and arrange the packaging bag of vacuum packaging room in, realize packing the powder under inclosed vacuum state, it is little to have overcome traditional packagine machine's packing weight, the serious shortcoming of dust pollution.

Description

Powder vacuum packaging machine

technical field

The utility model relates to a vacuum packaging machine, in particular to a vacuum packaging machine for vacuum packaging powder.

Background technique

Existing vacuum packaging machines are mainly used for vacuum packaging of food in order to preserve the quality and freshness; the packaging process is to vacuumize the packaging bag after the product is filled in the packaging bag, remove the residual gas in the packaging bag and then seal the packaging bag; Or put the packaging bag in the packaging room, then vacuum the packaging room to open the packaging bag, and heat and seal the packaging bag after the product is filled; the vacuum packaging room of this food vacuum packaging machine is small and cannot be adjusted at will. The weight is limited by the packaging room; not suitable for vacuum packaging of powders. Existing powder materials are not packaged in vacuum, and the packaging of powder materials is generally open-top packaging; or it is packaged in pockets with screw rotary feed valves. During the packaging process, the dust pollution is serious, the measurement is not accurate, and the product packaging is not dense.

Utility model content

The purpose of the utility model is to provide a vacuum packaging machine suitable for vacuum packaging powder.

The purpose of this utility model can be achieved through the following technical measures: it includes a support and a feeding device composed of a feed bin and a feeding pipe, the feeding device is solid on the support, and is characterized in that it also includes a vacuum packaging chamber and dust collection device, the vacuum packaging chamber is provided with a vacuum tube connected to the vacuum pump, a vacuum release tube and a feeding nozzle connected to the atmosphere, and a valve is arranged in the vacuum tube and the vacuum release tube, and the feed tube in the feeding device There is a feed valve in the center, and the feed pipe is connected to the feed nozzle; the dust collection device is composed of a dust removal pipe and a dust removal cover that are connected to the air pump, and the dust removal pipe is provided with a valve, and the dust removal pipe is located at the bottom of the vacuum packaging room And extend into the vacuum packaging room, the dust cover is located directly above the top of the vacuum packaging room.

The vacuum packaging chamber described in the utility model is an openable sealed cavity. The top wall, side wall and front wall of the vacuum packaging chamber are respectively provided with an upper baffle, a side baffle and a front baffle fixed by an adjustable screw. The bottom of the rear wall in the vacuum packaging chamber is provided with a plug-in fixed grid-shaped support frame, and the upper baffle, side baffle, front baffle and bottom support frame form a quadrilateral in the vacuum packaging chamber.

In the feeding device described in the utility model, a nozzle purification valve connected with compressed air is provided on the feeding pipe; the feeding valve on the feeding pipe includes a primary feeding valve and a secondary feeding valve.

As a further improvement to the utility model, it also includes a weighing device. The weighing device is composed of a load sensor that can sense the weight of the vacuum packaging chamber and a control circuit. The load sensor is connected to the input end of the control circuit, and the output signal of the control circuit is used to control The opening and closing of the primary feed valve and the secondary feed valve.

The feeding pipe described in the utility model is connected with the feeding nozzle through a rubber sleeve.

Use the pressure difference between the vacuum packaging room and the silo to suck the powder product into the packaging bag of the vacuum packaging room, so as to realize the packaging of the powder in a closed vacuum state. The baffle in the packaging room can be adjusted according to the size of the packaging bag. Adjustment, in the later stage of packaging, the dust is removed by the dust collection device, and the packaging weight can also be controlled by the weighing device during the entire packaging process, so the packaging and weighing are completed at the same time, overcoming the small packaging weight and serious dust pollution of traditional packaging machines The disadvantages are that the packaging efficiency and measurement accuracy are high, and the product packaging is dense.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the utility model vacuum packaging chamber;

Fig. 3 is a schematic structural view of the middle feed nozzle shown in Fig. 2 .

Detailed ways

As shown in Figures 1 and 2, this embodiment consists of a support, a feeding device, a vacuum packaging chamber, a dust collecting device and a weighing device. A vacuum tube 2, a vacuum release tube 3 and a feed nozzle 25 are installed on the vacuum packaging chamber 1, and the vacuum tube is connected to a vacuum pump. A valve 13 is installed on the vacuum tube 2. When the packaging machine is working, the valve 13 is opened, and the vacuum packaging Chamber 1 is vacuumed; vacuum release pipe 3 communicates with the atmosphere and a valve 12 is also installed in the pipe. The vacuum release pipe is used to ensure the stability of the vacuum degree in the vacuum packaging chamber. When the vacuum in the vacuum packaging chamber is too high When the vacuum is low, the valve 12 is opened to reduce the vacuum in the vacuum packaging chamber 1, and it is closed when the vacuum is low, so as to ensure the stability of the pressure in the vacuum packaging chamber.

The vacuum packaging chamber 1 is a sealed cavity formed by closing two openable doors 18, each door has a rubber ring 19 for sealing; the upper baffle 21, the side baffle 22 and the front baffle 23 respectively The adjustable screw rod is fixed on the top wall, side wall and front wall of the vacuum packaging chamber, the grid support frame 24 is plugged and fixed on the row of holes at the bottom of the rear wall in the vacuum packaging chamber, the upper baffle 21, the side baffle 22, the front The baffle plate 23 and the bottom support frame 24 form a quadrilateral in the vacuum packaging chamber, which can make the packaging bags in the cavity form a regular shape during packaging, and can be adapted to different sizes by adjusting the positions of the baffle plate and the support frame. packaging bags with different weights; the upper baffle 21 and the side baffles 22 are provided with through holes, which can allow the gas to pass through smoothly, so that the gas brought into the packaging bag by the product during the packaging process can be removed in time to ensure The speed of the product entering the bag is uniform and stable. A pressure gauge 17 is installed on the top of the sealed cavity, which can show the vacuum pressure in the vacuum packaging chamber 1, and the top has an air extraction port 20 for installing an evacuation tube and a vacuum release tube.

The feeding nozzle 25 is located on the upper part of the quadrilateral surrounded by the baffle plate and the support frame and is fixed on the sealed cavity. The end of the feed nozzle located in the vacuum packaging chamber is the entrance for the powder to enter the packaging bag and is used to hang the packaging bag. When placing the packaging bag, just put the valve port of the valve port packaging bag into the feeding nozzle. As shown in Figure 3, the middle part of the feed nozzle is provided with an expandable rubber ring 26, and the nozzle barrel wrapped by the rubber ring 26 has a small hole 27, which can be connected with the compressed air inlet 29 through a connecting thin tube 28. When the packaging machine is working, the compressed air inlet enters the compressed air, and the rubber ring expands to fix and seal the packaging bag and prevent the powder from leaking from the valve port of the packaging bag; after packaging, it does not enter the compressed air and is separated from the atmosphere. Connected, at this time the rubber ring shrinks, and the bag can be removed from the feeding nozzle.

The dust collection device is composed of a dust removal pipe 14 and a dust removal cover 10, both of which are connected to an air pump, and a valve 15 is installed on the dust removal pipe 14, and the dust removal pipe is located at the bottom of the vacuum packaging room and extends into the vacuum packaging room, and the dust removal cover 10 Located directly above the top of the vacuum packing chamber. During the packaging process, the dust removal pipe valve 15 is closed, and after the feeding is stopped, the dust removal pipe valve 15 is opened to remove the dust in the vacuum packaging chamber. The dust cover on the top is used to remove the flying dust when the door of the vacuum packaging room is opened, so as to prevent the dust from polluting the workshop. The powder extracted from the dust collection device can be recycled to avoid waste.

The feeding device consists of a feed pipe 4 and a feed bin 5, the feed bin 5 is fixed on the bracket 9, and the feed pipe 4 is equipped with a primary feed valve 6, a secondary feed valve 7 and a nozzle purge valve 8. Both the feed valve 6 and the secondary feed valve 7 are butterfly valves, and the nozzle purge valve 8 is connected with compressed air. When packaging starts, the two feeding valves are opened, and the nozzle purge valve is closed. When the packaging weight reaches the set target weight, the first-stage feeding valve is closed, and the feeding speed is reduced for precise feeding; When the target weight is reached, close the secondary feed valve to stop feeding, then open the nozzle purge valve for 0.1-0.5 seconds, and the compressed air will blow the product remaining in the nozzle into the packaging bag to ensure the accuracy of the packaging weight. The feed pipe 4 is connected with the feed nozzle 25 through the rubber sleeve 16, which is used to prevent the vibration of the feed bin from being transmitted to the vacuum packaging chamber when the packaging machine is working and affecting the weighing device.

The weighing device can be an elastic scale with a scale, and the vacuum packaging chamber is hung on the support frame 9 by a stay to form a "weighing plate" of the weighing device, and the feed valve is manually opened and closed according to the weight displayed by the elastic scale; Heavy device also can be made up of load sensor 11 and control circuit, and load sensor is fixed on the support frame, and the weight of induction is transmitted to control circuit, and the output signal of control circuit is used for controlling the start-up of primary feed valve and secondary feed valve. closed; the control circuit can also display the packaging weight, average feeding rate, etc. during the working process of the packaging machine, so as to realize the automatic monitoring of the packaging process.

The packaging bag used by the vacuum packaging machine is a multi-layer kraft paper or stretch paper valve bag. The middle layer of the packaging bag can be a perforated or non-transferable film or a non-porous structure, and the innermost layer is a non-porous structure. The perforated structure of the membrane makes the packaging bag have a certain degree of air permeability and moisture resistance. Due to the air permeability of the packaging bag, the gas in the packaging bag can be extracted to prevent the product from being extracted, and the product packaging is dense, which is very suitable for the packaging of powder.

Claims (5)

1. A powder vacuum packaging machine, comprising a support and a feeding device composed of a feed bin and a feeding pipe, the feeding device is solid on the support, and it is characterized in that: it also includes a vacuum packaging chamber and a dust collection device. The vacuum packaging chamber is provided with a vacuum tube connected to the vacuum pump, a vacuum release tube connected to the atmosphere, and a feeding nozzle, the vacuum tube and the vacuum release tube are provided with valves, and the feed tube in the feeding device is provided with Feed valve, the feed pipe is connected with the feed nozzle; the dust collection device is composed of a dust removal pipe and a dust removal cover connected with the air pump, the dust removal pipe is provided with a valve, the dust removal pipe is located at the bottom of the vacuum packaging room and extends into In the vacuum packaging room, the dust removal cover is located directly above the top of the vacuum packaging room. 2. The powder vacuum packaging machine according to claim 1, characterized in that: the vacuum packaging chamber is an openable sealed cavity, and the top wall, side wall and front wall of the vacuum packaging chamber are respectively equipped with The upper baffle, side baffle and front baffle fixed by the adjusting screw, the bottom of the rear wall in the vacuum packaging chamber is equipped with a plug-in fixed grid support frame, the upper baffle, side baffle, front baffle and bottom support frame Form a quadrilateral in the vacuum packaging chamber. 3. The powder vacuum packaging machine according to claim 1, characterized in that: the feeding pipe in the feeding device is provided with a nozzle cleaning valve communicating with compressed air; the feeding valve on the feeding pipe includes a The first-stage feed valve and the second-stage feed valve are used to control the amount of feed in stages. 4. The powder vacuum packaging machine according to claim 1, further comprising a weighing device, the weighing device is composed of a load sensor and a control circuit that can sense the weight of the vacuum packaging chamber, and the input of the load sensor and the control circuit The output signal of the control circuit is used to control the opening and closing of the first-stage feed valve and the second-stage feed valve on the feed pipe. 5. The powder vacuum packaging machine according to claim 1, 3 or 4, characterized in that: the feed pipe described in the utility model is connected to the feed nozzle through a rubber sleeve.

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