Double vacuum degassing valve pocket weighing and packaging machine

Abstract

The utility model discloses a double vacuum degassing valve bag weighing packaging machine which comprises a machine frame and a valve bag, a material conveying pipe is fixed in the machine frame through a mounting frame, a rotating rod is rotatably connected in the material conveying pipe, a plurality of spiral blades are arranged on the surface of the rotating rod, a weighing plate is connected to the surface of the machine frame, and a bottom plate is connected to the top of the weighing plate. The vacuum pump pumps air in the valve bag through a pipeline, powder raw materials needing to be packaged are added into the feeding port, the motor is started to work, an output shaft of the motor is in transmission connection with the speed reducer, and the output shaft of the speed reducer drives the rotating rod to rotate. The rotating rod drives the spiral blade to convey the powder raw materials in the conveying pipe into the vacuumized valve bag, the falling powder raw materials generally have certain bulkiness and contain a large amount of air, after vacuumizing, the air in the valve bag is exhausted, the powder raw materials can be tightly compressed and are not prone to loosening, and therefore the powder raw materials are not prone to loosening. Therefore, the vacuumized valve bag can effectively reduce flying of powder.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder packaging, and in particular relates to a double vacuum degassing valve bag weighing packaging machine. Background Art

[0002] In the production process of powder products, such as when packaging ultrafine powders such as graphene, a weighing packaging machine is used to package ultrafine powders such as graphene, so as to ensure that the weight of the powder in each ton bag is consistent and meet the needs of quantitative packaging;

[0003] There are many types of weighing packaging machines. Weighing packaging machines can weigh and convey goods during the packaging process. After weighing and conveying, the powder is fed into the valve bag. The valve bag is open, and when the powder product falls into the ton bag, there is a certain height difference between the discharge port of the weighing packaging machine and the valve bag. When the powder product falls from a higher position, the powder will produce a strong impact and rebound, causing the powder particles to splash into the air, forming dust and causing dust to fly, thereby causing dust pollution in the workshop and affecting the packaging of the powder. Summary of the Invention

[0004] The purpose of the utility model is to provide a double vacuum degassing valve bag weighing packaging machine to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a double vacuum degassing valve bag weighing packaging machine, comprising:

[0006] A frame, wherein a material delivery pipe is fixed in the frame through a mounting frame and a rotating rod is rotatably connected in the material delivery pipe, a surface of the rotating rod is provided with a plurality of spiral blades for delivering materials, a weighing plate for weighing materials is connected to the surface of the frame, and a bottom plate is connected to the top of the weighing plate;

[0007] A valve bag is arranged on the top of the base plate and one end of the top of the valve bag is connected to the feed pipe. Two groups of fixed rods are slidably connected to one side of the frame and the surfaces of the two groups of fixed rods are connected to a vacuum box. The valve bag is arranged in the vacuum box and is used to vacuum the valve bag.

[0008] Preferably, the vacuum box includes a first closed box and a second closed box, the first closed box and the second closed box are respectively connected to the surfaces of two groups of fixed rods, and the upper and lower ends of the two groups of fixed rods are slidably connected to the slide rail surface provided on the frame through sliders.

[0009] Preferably, two groups of cylinders are provided in the frame and the piston rods of the two groups of cylinders are respectively connected to the fixed blocks on the surfaces of the two groups of fixed rods, so that when the two groups of fixed rods slide through the cylinders, they drive the first closing box and the second closing box to close or open, and a vacuum interface is provided on the surface of the first closing box.

[0010] Preferably, an air bag is provided at the connection between the valve bag and the feed pipe, and a plurality of rollers are rollingly connected to the surface of the bottom plate.

[0011] Preferably, a weighing sensor is provided on the surface of the weighing plate, and a feed port is provided on the top of the feeding pipe.

[0012] Preferably, a motor is provided in the frame and at one end of the feed pipe, the output shaft of the motor is transmission-connected to a reducer, and the output shaft of the reducer is transmission-connected to the rotating rod.

[0013] Compared with the prior art, the beneficial effect of the present invention is that: the pipeline is connected to the interface on the surface of the valve bag in the vacuum box through the vacuum interface, and the other end of the pipeline is connected to the external vacuum pump for vacuuming. The vacuum pump draws the air in the valve bag through the pipeline to vacuum the valve bag, and then adds the powder raw materials to be packaged into the feed port, and starts the motor. The output shaft of the motor is connected to the reducer, and the output shaft of the reducer drives the rotating rod to rotate. The rotating rod drives the spiral blade to transport the powder raw materials in the feed pipe into the valve bag after vacuuming. The falling powder raw materials usually have a certain fluffiness and contain a large amount of air. After vacuuming, the air in the valve bag is discharged, and the powder raw materials can be tightly compressed and not easy to loosen, so that the valve bag after vacuuming can effectively reduce the flying of powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model after the frame is disassembled;

[0016] Figure 3 This is a structural diagram of the valve bag, the first closed box, and the second closed box of the utility model.

[0017] In the figure: 1. Frame; 2. Mounting frame; 3. Feed pipe; 4. Rotating rod; 5. Spiral blade; 6. Fixed rod; 7. Weighing plate; 8. Bottom plate; 9. Valve bag; 10. Vacuum box; 11. Air bag; 12. Roller; 13. First closing box; 14. Second closing box; 15. Slide rail; 16. Cylinder; 17. Fixed block; 18. Vacuum interface; 19. Weighing sensor; 20. Feed port; 21. Motor; 22. Reducer; 23. Shaping plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The utility model provides Figure 1-3 A double vacuum degassing valve bag weighing packaging machine is shown, comprising:

[0020] A frame 1, a material delivery pipe 3 is fixed in the frame 1 through a mounting frame 2, and a rotating rod 4 is rotatably connected to the material delivery pipe 3. The surface of the rotating rod 4 is provided with a plurality of spiral blades 5 for feeding the material. A weighing plate 7 for weighing the material is connected to the surface of the frame 1, and a bottom plate 8 is connected to the top of the weighing plate 7;

[0021] The valve bag 9 is arranged on the top of the base plate 8 and one end of the top of the valve bag 9 is connected to the feed pipe 3. Two groups of fixed rods 6 are slidably connected to one side of the frame 1 and the surfaces of the two groups of fixed rods 6 are connected to a vacuum box 10. The valve bag 9 is arranged in the vacuum box 10 and is used to vacuum the valve bag 9.

[0022] The vacuum box 10 includes a first closed box 13 and a second closed box 14, which are respectively connected to the surfaces of two groups of fixed rods 6. The upper and lower ends of the two groups of fixed rods 6 are slidably connected to the surfaces of slide rails 15 provided on the frame 1 through sliders. When the first closed box 13 and the second closed box 14 move, the sliders on the surfaces of the fixed rods 6 slide on the slide rails 15 on the surface of the frame 1, and the slide rails 15 enhance the stability of the movement of the first closed box 13 and the second closed box 14.

[0023] Two groups of cylinders 16 are provided in the frame 1 and the piston rods of the two groups of cylinders 16 are respectively connected to the fixed blocks 17 on the surfaces of the two groups of fixed rods 6, so that when the two groups of fixed rods 6 slide through the cylinders 16, they drive the first closed box 13 and the second closed box 14 to close or open. A vacuum interface 18 is provided on the surface of the first closed box 13, and a shaping plate 23 is provided in the first closed box 13 and the second closed box 14. When the valve bag 9 is placed in the vacuum box 10 for vacuuming, the powder raw material may be unevenly stacked due to various reasons when it is filled into the valve bag 9, causing the valve bag 9 to deform. The shaping plate can squeeze and adjust the two sides of the valve bag 9 to prevent the valve bag 9 from deforming, thereby making the appearance of the valve bag 9 more regular.

[0024] An air bag 11 is provided at the connection between the valve bag 9 and the feed pipe 3. During the process of filling the powder raw material into the valve bag 9, the air bag 11 can assist the flow of the material. When the powder raw material enters the valve bag 9 from the feed pipe 3, the air bag 11 can generate a certain pressure fluctuation through slight expansion and contraction, helping the material to flow into the bag more smoothly, thereby preventing the powder raw material from being blocked during filling. A number of rollers 12 are connected to the surface of the bottom plate 8 in a rolling manner. When the valve bag 9 is taken out of the vacuum box 10, the bottom of the valve bag 9 contacts the roller 12, and can move on the surface of the roller 12 when the valve bag 9 is pulled out, thereby assisting the movement of the valve bag 9 through the roller 12.

[0025] A weighing sensor 19 is provided on the surface of the weighing plate 7 , and the powder raw material fed into the valve bag 9 can be weighed by the weighing sensor 19 . A feed port 20 is provided on the top of the feeding pipe 3 .

[0026] A motor 21 is provided in the frame 1 and at one end of the feed pipe 3. The output shaft of the motor 21 is connected to the reducer 22, and the output shaft of the reducer 22 is connected to the rotating rod 4. The output shaft of the motor 21 is connected to the reducer 22, and the rotating rod 4 is driven to rotate by the output shaft of the reducer 22. The rotating rod 4 drives the spiral blade 5 to transport the powder raw material in the feed pipe 3 into the vacuumed valve bag 9.

[0027] The double vacuum degassing valve bag weighing packaging machine connects a pipeline through a vacuum interface 18 to an interface on the surface of the valve bag 9 in the vacuum box 10, and the other end of the pipeline is connected to an external vacuum pump for vacuuming. The vacuum pump draws the air in the valve bag 9 through the pipeline to vacuumize the valve bag 9, and then adds the powder raw material to be packaged into the feed port 20, and starts the motor 21 to work. The output shaft of the motor 21 is connected to the reducer 22 for transmission, and the output shaft of the reducer 22 drives the rotating rod 4 to rotate. The rotating rod 4 drives the spiral blade 5 to transport the powder raw material in the feeding pipe 3 into the valve bag 9 after vacuuming. The falling powder raw material usually has a certain fluffiness and contains a large amount of air. After vacuuming, the air in the valve bag 9 is discharged, and the powder raw material can be tightly compressed and not easy to loosen, so that the valve bag 9 after vacuuming can effectively reduce the flying of powder;

[0028] After the powder raw materials transported into the valve bag 9 are stored in the valve bag 9, during continuous transportation, the powder raw materials transported into the valve bag 9 are weighed by the weighing sensor 19 on the surface of the weighing plate 7. When the weighed weight reaches the weight required for packaging, the motor 21 stops working, thereby stopping the transportation of the powder raw materials. At this time, the two groups of cylinders 16 can be started to work, and the piston rods of the two groups of cylinders 16 respectively push the two groups of first closed boxes 13 and second closed boxes 14 to move in opposite directions, and when the first closed box 13 and the second closed box 14 move, the slider on the surface of the fixed rod 6 slides on the slide rail 15 on the surface of the frame 1, so that the first closed box 13 and the second closed box 14 move away from each other and open. At this time, one end of the valve bag 9 can be detached from the flange connection with the feed pipe 3, thereby taking the valve bag 9 out of the vacuum box 10.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double vacuum degassing valve bag weighing packaging machine, characterized in that: include: A frame (1), wherein a material delivery pipe (3) is fixed in the frame (1) via a mounting frame (2), and a rotating rod (4) is rotatably connected in the material delivery pipe (3), a surface of the rotating rod (4) is provided with a plurality of spiral blades (5) for delivering materials, a weighing plate (7) for weighing materials is connected to the surface of the frame (1), and a bottom plate (8) is connected to the top of the weighing plate (7); A valve bag (9), wherein the valve bag (9) is arranged on the top of the bottom plate (8) and one end of the top of the valve bag (9) is connected to the feed pipe (3); two groups of fixed rods (6) are slidably connected to one side of the frame (1) and the surfaces of the two groups of fixed rods (6) are connected to a vacuum box (10); the valve bag (9) is arranged in the vacuum box (10) and is used to evacuate the valve bag (9).

2. The double vacuum degassing valve bag weighing packaging machine according to claim 1, characterized in that: The vacuum box (10) comprises a first closed box (13) and a second closed box (14), wherein the first closed box (13) and the second closed box (14) are respectively connected to the surfaces of two groups of fixed rods (6), and the upper and lower ends of the two groups of fixed rods (6) are slidably connected to the surfaces of slide rails (15) provided on the frame (1) through sliders.

3. The double vacuum degassing valve bag weighing packaging machine according to claim 1, characterized in that: Two groups of cylinders (16) are provided in the frame (1), and the piston rods of the two groups of cylinders (16) are respectively connected to the fixed blocks (17) on the surfaces of the two groups of fixed rods (6), so that when the two groups of fixed rods (6) slide through the cylinders (16), they drive the first closing box (13) and the second closing box (14) to close or open, and the surface of the first closing box (13) is provided with a vacuum interface (18).

4. The double vacuum degassing valve bag weighing packaging machine according to claim 1, characterized in that: An air bag (11) is provided at the connection between the valve bag (9) and the material delivery pipe (3), and a plurality of rollers (12) are rollingly connected to the surface of the bottom plate (8).

5. The double vacuum degassing valve bag weighing packaging machine according to claim 1, characterized in that: A weighing sensor (19) is provided on the surface of the weighing plate (7), and a feeding port (20) is provided on the top of the feeding pipe (3).

6. The double vacuum degassing valve bag weighing packaging machine according to claim 1, characterized in that: A motor (21) is provided in the frame (1) and at one end of the feed pipe (3). The output shaft of the motor (21) is transmission-connected to a reducer (22), and the output shaft of the reducer (22) is transmission-connected to the rotating rod (4).

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