Vacuum packaging device for material packaging bag

Abstract

The utility model discloses a vacuum packaging device of a material packaging bag, which relates to the technical field of grain packaging, and comprises a U-shaped frame, the inner wall of the U-shaped frame is fixedly connected with a conveying mechanism, a vacuum packaging mechanism is arranged in the U-shaped frame, the vacuum packaging mechanism comprises an L-shaped frame, the inner wall of the L-shaped frame is fixedly connected with a lifting electric pole, and the lifting electric pole is fixedly connected with the conveying mechanism. The telescopic end of the lifting electric pole is fixedly connected with a lifting frame, the inner wall of the lifting frame is fixedly connected with two first pushing electric poles, the telescopic end of each first pushing electric pole is fixedly connected with a movable plate, and the inner wall of each movable plate is fixedly connected with a flat pulling plate. After a packaging bag filled with grain materials is conveyed to the position under the lifting frame through the conveying mechanism, the conveying mechanism stops conveying, and meanwhile the lifting electric pole extends to enable the two flat pulling plates and the flat air exhaust head to go deep into the packaging bag.

Description

Technical Field

[0001] The utility model relates to the technical field of grain packaging, in particular to a vacuum packaging device for material packaging bags. Background Art

[0002] Grain packaging refers to putting grain into suitable packaging bags or containers and performing sealing treatment to ensure the quality and safety of grain during storage, transportation and sales. In order to increase the storage time of grains such as rice, wheat and corn and improve the moisture and pest prevention effects, material packaging bags are often used to vacuum package grains, and at this time, corresponding vacuum packaging devices are needed.

[0003] The utility model disclosed in the utility model patent with the authorization announcement number CN214777016U is a packaging device for garment packaging bags with an exhaust function. There is also an exhaust cylinder in front of the heat-sealing cylinder of this packaging device. The lower end of the exhaust cylinder is connected to an exhaust pressing plate. The exhaust pressing plate can press down the packaging bag before packaging the bag to press out the air inside it. And there is also an elastic cushion layer below the exhaust pressing plate. There is also an elastic cushion plate on the packaging table of the packaging device. The elastic cushion layer and the elastic cushion plate can prevent the ready-to-wear clothes in the clothing bag from being damaged due to the excessive pressure of the exhaust cylinder. The surfaces of the upper heat-sealing plate and the lower heat-sealing plate of this packaging device are both coated with a layer of insulating paint, and the insulating paint can prevent the phenomenon of mutual conduction and short circuit between the upper heat-sealing plate and the lower heat-sealing plate when they are closed.

[0004] Although this device can discharge the air in the packaging bag to a certain extent, this device only discharges the air in the packaging bag by extrusion. When used to store grain, the air is likely to cause the growth of microorganisms in the grain and accelerate the oxidation and deterioration of the grain. There is a lack of a vacuum packaging structure that can extract the air in the packaging bag as much as possible, resulting in the grain being difficult to store for a long time due to the residual air in the packaging bag.

[0005] Therefore, a vacuum packaging device for material packaging bags is needed to solve the above technical problems. Content of the Utility Model

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a vacuum packaging device for material packaging bags.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A vacuum packaging device for material packaging bags, including a U-shaped frame, the inner wall of the U-shaped frame is fixedly connected with a conveying mechanism, and a vacuum packaging mechanism is arranged inside the U-shaped frame;

[0008] The vacuum packaging mechanism includes an L-shaped frame. The inner wall of the L-shaped frame is fixedly connected with a lifting electric rod. The telescopic end of the lifting electric rod is fixedly connected with a lifting frame. The inner wall of the lifting frame is fixedly connected with two first propulsion electric rods. The telescopic end of each first propulsion electric rod is fixedly connected with a movable plate. The inner wall of each movable plate is fixedly connected with a flat pulling plate. The inner top wall of the lifting frame is fixedly connected with a negative pressure pump. The input end of the negative pressure pump is fixedly communicated with a flat air extraction head. The output end of the negative pressure pump is fixedly communicated with an exhaust pipe. The front surface of the U-shaped frame is fixedly connected with a key controller. The U-shaped frame is fixedly connected with a first insulating heat sealing plate and a second propulsion electric rod. The telescopic end of the second propulsion electric rod is fixedly connected with a pressing plate. The back surface of the pressing plate is fixedly connected with a second insulating heat sealing plate.

[0009] Preferably, the front surface of the L-shaped frame is fixedly connected with the back surface of the U-shaped frame. The conveying mechanism, the lifting electric rod, the two first propulsion electric rods, the negative pressure pump, the second propulsion electric rod, the first insulating heat sealing plate and the second insulating heat sealing plate are all electrically connected to the key controller through wires. The bottom surface of the U-shaped frame is fixedly connected with two bases. The bottom surface of each base is fixedly connected with an anti-slip pad.

[0010] Preferably, the telescopic end of the lifting electric rod is fixedly connected with a first reinforcing ring. The bottom surface of the first reinforcing ring is fixedly connected with the upper surface of the lifting frame.

[0011] Preferably, the upper surface of each movable plate is fixedly connected with a limiting slider. The outer surface of each limiting slider is slidably connected with the inside of the lifting frame.

[0012] Preferably, the outer surfaces of the output end and the input end of the negative pressure pump are both fixedly connected with second reinforcing rings. The inner wall of one of the second reinforcing rings is fixedly connected with the outer surface of the flat air extraction head. The inner wall of the other second reinforcing ring is fixedly connected with the outer surface of the exhaust pipe.

[0013] Preferably, two handle supports are fixedly connected to both the front surface and the back surface of the U-shaped frame. The inner wall of each handle support is fixedly connected with a pull rod.

[0014] Preferably, each handle support is internally provided with a grip. The inner wall of each grip is rotatably connected with the outer surface of the pull rod.

[0015] Beneficial effects:

[0016] Compared with the prior art, the vacuum packaging device for the material packaging bag has the following beneficial effects:

[0017] The utility model transports the packaging bag filled with grain materials to directly below the lifting frame through a conveying mechanism, and then the conveying mechanism stops transporting. At the same time, the lifting electric pole extends, enabling the two flat pulling plates and the flat air extraction head to penetrate into the interior of the packaging bag. Subsequently, the two first propulsion electric poles shorten simultaneously, and the two flat pulling plates can expand the packaging bag into a flat state. Moreover, the flat packaging bag opening clamps the flat air extraction head. At this time, when the negative pressure pump is powered on, it can extract the air inside the packaging bag through the flat air extraction head. Then, the second propulsion electric pole is powered on to drive the pressing plate and the second insulating heat-sealing plate towards the first insulating heat-sealing plate. The second insulating heat-sealing plate and the first insulating heat-sealing plate heat-seal the air-extracted packaging bag opening below the flat air extraction head, exhausting as much air as possible from the grain packaging bag to ensure the storage time of the grain materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is a three-dimensional structure schematic diagram of the L-shaped frame of the utility model;

[0020] Figure 3 is a three-dimensional structure schematic diagram of the lifting frame of the utility model;

[0021] Figure 4 is a schematic diagram of the connection structure of the flat air extraction head of the utility model;

[0022] Figure 5 is a three-dimensional structure schematic diagram of the second propulsion electric pole of the utility model;

[0023] Figure 6 is a three-dimensional structure schematic diagram of the U-shaped frame of the utility model.

[0024] In the figure: 1. U-shaped frame; 2. Conveying mechanism; 3. Vacuum packaging mechanism; 301. L-shaped frame; 302. Lifting electric pole; 303. Lifting frame; 304. First propulsion electric pole; 305. Movable plate; 306. Flat pulling plate; 307. Negative pressure pump; 308. Flat air extraction head; 309. Exhaust pipe; 310. Button controller; 311. First insulating heat-sealing plate; 312. Second propulsion electric pole; 313. Pressing plate; 314. Second insulating heat-sealing plate; 4. Base; 5. Anti-slip pad; 6. First reinforcing ring; 7. Limit slider; 8. Second reinforcing ring; 9. Handle support; 10. Pull rod; 11. Grip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The principles and features of the present utility model are described below with reference to the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0026] See Figure 1 、 Figure 2 、Figure 3 and Figure 6 , a vacuum packaging device for a material packaging bag, comprising a U-shaped frame 1, and a conveying mechanism 2 is fixedly connected to the inner wall of the U-shaped frame 1. A vacuum packaging mechanism 3 is arranged inside the U-shaped frame 1. The vacuum packaging mechanism 3 includes an L-shaped frame 301, a lifting electric rod 302 is fixedly connected to the inner wall of the L-shaped frame 301, and a lifting frame 303 is fixedly connected to the telescopic end of the lifting electric rod 302. The front surface of the L-shaped frame 301 is fixedly connected to the back surface of the U-shaped frame 1. Two bases 4 are fixedly connected to the bottom surface of the U-shaped frame 1, and an anti-slip pad 5 is fixedly connected to the bottom surface of each base 4. By providing the bases 4, the U-shaped frame 1 can be lifted, and thus a space is left at the bottom of the U-shaped frame 1 for convenient handling by external handling mechanisms such as forklifts. By providing the anti-slip pads 5, the anti-slip property of the bottom surface of the bases 4 can be increased.

[0027] See Figure 1 , Figure 2 and Figure 3 , two first propulsion electric rods 304 are fixedly connected to the inner wall of the lifting frame 303, and a movable plate 305 is fixedly connected to the telescopic end of each first propulsion electric rod 304. A flat pulling plate 306 is fixedly connected to the inner wall of each movable plate 305. A first reinforcing ring 6 is fixedly connected to the telescopic end of the lifting electric rod 302, and the bottom surface of the first reinforcing ring 6 is fixedly connected to the upper surface of the lifting frame 303. By providing the first reinforcing ring 6, the connection between the telescopic end of the lifting electric rod 302 and the lifting frame 303 can be strengthened, and thus the breakage between the two can be effectively prevented.

[0028] See Figure 2 , Figure 3 and Figure 4 , a negative pressure pump 307 is fixedly connected to the inner top wall of the lifting frame 303, an input end of the negative pressure pump 307 is fixedly communicated with a flat air extraction head 308, and a limiting slider 7 is fixedly connected to the upper surface of each movable plate 305. The outer surface of each limiting slider 7 is slidably connected to the inside of the lifting frame 303. By providing the limiting sliders 7, they can slide left and right inside the lifting frame 303, and thus the stability of the movable plate 305 during left and right movement can be increased.

[0029] See Figure 1 , Figure 3 and Figure 4, the output end of the negative pressure pump 307 is fixedly connected to an exhaust pipe 309, and a button controller 310 is fixedly connected to the front surface of the U-shaped frame 1. Second reinforcement rings 8 are fixedly connected to the outer surfaces of both the output end and the input end of the negative pressure pump 307. The inner wall of one of the second reinforcement rings 8 is fixedly connected to the outer surface of the flat air extraction head 308, and the inner wall of the other second reinforcement ring 8 is fixedly connected to the outer surface of the exhaust pipe 309. By providing the second reinforcement rings 8, the connections between the output end of the negative pressure pump 307 and the exhaust pipe 309, and between the input end of the negative pressure pump 307 and the flat air extraction head 308 can be respectively reinforced, thereby preventing air leakage at the above-mentioned connection points.

[0030] See Figure 1 , Figure 5 and Figure 6 , a first insulating heat-sealing plate 311 is fixedly connected to the inner wall of one side of the U-shaped frame 1, and a second pushing electric rod 312 is fixedly connected to the inner wall of the U-shaped frame 1. Two handle supports 9 are fixedly connected to both the front surface and the back surface of the U-shaped frame 1, and a pull rod 10 is fixedly connected to the inner wall of each handle support 9. By providing the pull rod 10, a rotation base surface can be provided for the hand-held structure within the handle support 9, thereby increasing the flexibility of use of the hand-held structure. By providing the handle support 9 and the pull rod 10, they can cooperate with the above-mentioned hand-held structure to manually lift and slightly move the entire device.

[0031] See Figure 1 and Figure 5 , the telescopic end of the second pushing electric rod 312 is fixedly connected to a pressing plate 313, and a second insulating heat-sealing plate 314 is fixedly connected to the back surface of the pressing plate 313. The conveying mechanism 2, the lifting electric rod 302, the two first pushing electric rods 304, the negative pressure pump 307, the second pushing electric rod 312, the first insulating heat-sealing plate 311, and the second insulating heat-sealing plate 314 are all electrically connected to the button controller 310 through wires. A grip 11 is provided inside each handle support 9, and the inner wall of each grip 11 is rotatably connected to the outer surface of the pull rod 10. By providing the grip 11, it can rotate around the outer surface of the pull rod 10 inside the handle support 9, and thus it is convenient to manually lift and slightly move the entire device after being held by hand.

[0032] Working principle: First, place the entire device on the grain packaging production line. Then, communicate the button controller 310 with the front and rear production lines. When the conveyor mechanism 2 transports the packaging bag filled with grain materials to directly below the lifting frame 303, the conveyor mechanism 2 stops transporting. At the same time, the lifting electric rod 302 extends, and the two flat pulling plates 306 and the flat air extraction head 308 are inserted into the interior of the packaging bag. Then, the two first propulsion electric rods 304 shorten simultaneously, and the two flat pulling plates 306 expand the packaging bag into a flat state, and the flat packaging bag opening clamps the flat air extraction head 308. At this time, after the negative pressure pump 307 is powered on, the air in the packaging bag is exhausted through the flat air extraction head 308. Then, the second propulsion electric rod 312 is powered on to drive the pressing plate 313 and the second insulating heat-sealing plate 314 to approach the first insulating heat-sealing plate 311. The second insulating heat-sealing plate 314 and the first insulating heat-sealing plate 311 heat-seal the air-exhausted packaging bag opening below the flat air extraction head 308, exhausting the air in the grain packaging bag and ensuring good storage of the grain.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A vacuum packaging device for a material packaging bag, comprising a U-shaped frame (1), characterized in that: The inner wall of the U-shaped frame (1) is fixedly connected to a transmission mechanism (2), and a vacuum packaging mechanism (3) is arranged inside the U-shaped frame (1); The vacuum packaging mechanism (3) includes an L-shaped frame (301). The inner wall of the L-shaped frame (301) is fixedly connected to a lifting electric rod (302). The telescopic end of the lifting electric rod (302) is fixedly connected to a lifting frame (303). The inner wall of the lifting frame (303) is fixedly connected to two first propulsion electric rods (304). The telescopic end of each first propulsion electric rod (304) is fixedly connected to a movable plate (305). The inner wall of each movable plate (305) is fixedly connected to a flat pulling plate (306). The inner top wall of the lifting frame (303) is fixedly connected to a negative pressure pump (307). The input end of the negative pressure pump (307) is fixedly communicated with a flat air extraction head (308). The output end of the negative pressure pump (307) is fixedly communicated with an exhaust pipe (309).

2. The vacuum packaging device for a material packaging bag according to claim 1, characterized in that: A key controller (310), a first insulating heat-sealing plate (311), and a second propulsion electric rod (312) are fixedly connected to the U-shaped frame (1). The telescopic end of the second propulsion electric rod (312) is fixedly connected to a pressing plate (313). The back surface of the pressing plate (313) is fixedly connected to a second insulating heat-sealing plate (314).

3. The vacuum packaging device for a material packaging bag according to claim 2, characterized in that: The front surface of the L-shaped frame (301) is fixedly connected to the back surface of the U-shaped frame (1). Two bases (4) are fixedly connected to the bottom surface of the U-shaped frame (1). The bottom surface of each base (4) is fixedly connected to an anti-slip pad (5).

4. A vacuum packaging device for a material packaging bag according to claim 2, characterized in that: The telescopic end of the lifting electric rod (302) is fixedly connected to a first reinforcing ring (6). The bottom surface of the first reinforcing ring (6) is fixedly connected to the upper surface of the lifting frame (303).

5. The vacuum packaging device for a material packaging bag according to claim 2, characterized in that: A limiting slider (7) is fixedly connected to the upper surface of each movable plate (305). The outer surface of each limiting slider (7) is slidably connected to the inside of the lifting frame (303).

6. The vacuum packaging device for a material packaging bag according to claim 2, wherein: Second reinforcing rings (8) are fixedly connected to the outer surfaces of both the output end and the input end of the negative pressure pump (307). The inner wall of one of the second reinforcing rings (8) is fixedly connected to the outer surface of the flat air extraction head (308), and the inner wall of the other second reinforcing ring (8) is fixedly connected to the outer surface of the exhaust pipe (309).

7. The vacuum packaging device for a material packaging bag according to claim 2, characterized in that: Two handle supports (9) are fixedly connected to both the front surface and the back surface of the U-shaped frame (1). A pull rod (10) is fixedly connected to the inner wall of each handle support (9).

8. The vacuum packaging device for a material packaging bag according to claim 7, wherein: A handle (11) is arranged inside each handle support (9). The inner wall of each handle (11) is rotatably connected to the outer surface of the pull rod (10).

Images