Single-bucket degassing packaging machine

Abstract

The utility model relates to the technical field of degassing packaging machines, in particular to a single-bucket degassing packaging machine which is characterized in that a scale bucket is connected to a rack, a weighing sensor for weighing is connected to the scale bucket, a scale bucket outlet valve is connected to the bottom end of the scale bucket, a vacuum tank is connected to the rack, and the bottom end of the vacuum tank is communicated with a vacuum pump through a first connecting pipe; and the upper end of the vacuum tank is communicated with an air exhaust valve. After all materials in the scale hopper flow out, the scale hopper outlet valve is closed, the feeding valve is closed and sealed at the same time, the exhaust valve is closed, the bag clamping opening and the packaging bag form a closed cavity, air is exhausted immediately after bagging is completed, and the air exhaust device is different from a traditional filter stick insertion type air exhaust mode and is higher in efficiency, simpler in structure and more convenient to operate. When the weighing sensor is used for weighing materials in the scale hopper, negative pressure in the vacuum tank is rapidly communicated with a packaging bag, air in the materials is rapidly stripped, weighing and air exhausting are carried out at the same time, the packaging speed is higher, and efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of degassing packaging machines, in particular to a single-bucket degassing packaging machine. Background Art

[0002] Powdered materials used in various industries at home and abroad are all developing towards micro / ultrafine powders. Micro / ultrafine powders are easy to mix with air to form a solid-gas mixture due to their small particle size and light specific gravity, which places higher and higher requirements on packaging equipment. Gas-containing powder refers to a solid-gas mixture formed by mixing powdered materials with air. Degassing is the process of removing gas from the solid-gas mixture by physical methods.

[0003] At present, the solutions commonly used in China are: one is to let the material stand for treatment, through aging treatment, the gas in the material is automatically discharged, which is time-consuming and inefficient. After standing, the packaging process will also cause secondary gas dissolution. The second is to insert a filter rod into the material to extract the air. The disadvantages of this method are low extraction efficiency, easy clogging of the filter rod, and complex equipment structure. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art that the gas in the material is automatically discharged through aging treatment, which is time-consuming and has low efficiency, and proposes a single-bucket degassing packaging machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A single-bucket degassing packaging machine is designed, comprising a frame, a feeding screw mechanism is fixedly connected to the frame, a spiral valve is connected to the feeding screw mechanism, a weighing bucket is connected to the frame, a weighing sensor for weighing is connected to the weighing bucket, a weighing bucket outlet valve is connected to the bottom end of the weighing bucket, a bag clamping port is connected to the frame, a bag clamping port feeding valve is connected to the upper end of the bag clamping port, a vacuum tank is connected to the frame, a vacuum pump is connected to the bottom end of the vacuum tank through a first connecting pipe, an exhaust valve is connected to the upper end of the vacuum tank, the exhaust valve is connected to a recoil mechanism through a second connecting pipe, the recoil mechanism is connected to the bag clamping port, an exhaust pipeline is connected to the bag clamping port, and an exhaust valve is connected to the exhaust pipeline.

[0007] Preferably, an anti-corrosion layer is sprayed on the frame.

[0008] Preferably, a plurality of weighing sensors are provided and are evenly spaced and distributed along the axis of the weighing bucket.

[0009] Preferably, the recoil mechanism includes a filter element, the filter element is fixedly connected to the frame, the filter element is connected to the second connecting pipe, one end of the filter element is connected to the bag clamping port, the filter element is connected to an air bag, and the air bag is connected to a back-blowing valve.

[0010] Preferably, a supporting foot is fixedly connected to the bottom end of the frame.

[0011] Preferably, a dust cover is fixedly connected to the frame, and the dust cover is located outside the bag clamping opening.

[0012] The single bucket degassing packaging machine proposed by the utility model has the following beneficial effects:

[0013] After manually putting a bag on the bag clamping mouth, the switch is turned off to send a material request signal, at this time the weighing bucket outlet valve is opened, and at the same time the feed valve on the upper end of the bag clamping mouth is opened, and the exhaust valve in the exhaust pipe is opened, and the material in the weighing bucket falls into the packaging bag under the action of gravity. When all the material in the weighing bucket flows out, the weighing bucket outlet valve is closed, and at the same time the feed valve is closed and sealed, and the exhaust valve is closed, and the bag clamping mouth and the packaging bag form a closed cavity, which is immediately evacuated after bagging is completed. Different from the traditional filter rod insertion type vacuuming, it is more efficient and has a simpler structure. When the weighing sensor is weighing the material in the weighing bucket, the negative pressure in the vacuum tank is quickly connected to the packaging bag, and the air in the material is quickly stripped and sucked out of the bag. Weighing and vacuuming are carried out simultaneously, and the packaging speed is faster and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the single bucket degassing packaging machine proposed by the utility model Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of the single bucket degassing packaging machine proposed by the utility model Figure 2 ;

[0016] Figure 3 This is a front view structural schematic diagram of the single bucket degassing packaging machine proposed by the utility model;

[0017] Figure 4 The utility model is a schematic side view of the single bucket degassing packaging machine.

[0018] In the figure: 1. Feeding screw mechanism; 2. Spiral valve; 3. Scale bucket; 4. Scale bucket outlet valve; 5. Bag clamping port; 6. Bag clamping port feeding valve; 7. Vacuum pump; 8. Vacuum tank; 9. Exhaust valve; 10. Air extraction valve; 11. Back-blowing valve; 12. Air bag; 13. Filter element; 14. Frame; 15. Weighing sensor; 16. Motor; 17. Dust hood. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Example 1: Reference Figure 1-4 The single bucket degassing packaging machine includes a frame 14, an anti-corrosion layer is sprayed on the frame 14, the anti-corrosion layer is a polyethylene anti-corrosion layer, and the polyethylene anti-corrosion layer protects the frame 14. A support foot is fixedly connected to the bottom end of the frame 14, a feeding screw mechanism 1 is fixedly connected to the frame 14, a motor 16 for driving the feeding screw mechanism 1 is connected to the frame 14, a spiral valve 2 is connected to the feeding screw mechanism 1, a weighing bucket 3 is connected to the frame 14, a weighing sensor 15 for weighing is connected to the weighing bucket 3, a plurality of weighing sensors 15 are provided and are evenly spaced along the axis direction of the weighing bucket 3, and a weighing bucket outlet is connected to the bottom end of the weighing bucket 3. Valve 4, a bag clamping port 5 is connected to the frame 14, the bag clamping port 5 is located just below the weighing bucket 3, the upper end of the bag clamping port 5 is connected to the bag clamping port feeding valve 6, the frame 14 is connected to a vacuum tank 8, a negative pressure detection device is arranged in the vacuum tank 8, the bottom end of the vacuum tank 8 is connected to a vacuum pump 7 through a first connecting pipe, the upper end of the vacuum tank 8 is connected to an exhaust valve 10, the exhaust valve 10 is connected to a recoil mechanism through a second connecting pipe, the recoil mechanism is connected to the bag clamping port 5, the bag clamping port 5 is connected to an exhaust pipeline, the exhaust pipeline is connected to an exhaust valve 9, a dust hood 17 is fixedly connected to the frame 14, and the dust hood 17 is located on the outside of the bag clamping port 5.

[0021] Working principle:

[0022] After the motor 16 is started, it drives the feeding screw mechanism 1 to work. The feeding screw mechanism 1 conveys the material in the silo to the weighing bucket 3. The material drives the weighing bucket 3 to move downward. After the weighing bucket 3 moves downward, it squeezes the weighing sensor 15. The weighing sensor 15 weighs the material in the bucket in real time. When the set target weight is reached, the motor 16 stops driving the feeding screw mechanism 1 to feed the material.

[0023] After manually putting a bag on the bag clamping port 5, the switch is turned off to send a material request signal, at this time, the weighing bucket outlet valve 4 is opened, and at the same time, the feed valve 6 at the upper end of the bag clamping port 5 is opened, and the exhaust valve 9 in the exhaust pipeline is opened, and the material in the weighing bucket 3 falls into the packaging bag under the action of gravity. When all the material in the weighing bucket 3 flows out, the weighing bucket outlet valve 4 is closed, and the next weighing link is automatically entered;

[0024] At the same time, the feed valve 6 is closed and sealed, the exhaust valve 9 is closed, and the bag clamping port 5 and the packaging bag form a closed cavity. After the bagging is completed, the air is immediately pumped out. Different from the traditional filter rod insertion type pumping, the efficiency is higher and the structure is simpler. At this time, the air pumping valve 10 is opened, and the air pumping valve 10 is connected to the recoil mechanism through the second connecting pipe. The negative pressure in the vacuum tank 8 is quickly connected to the packaging bag, and the air in the material is quickly stripped and sucked out of the bag. The vacuum tank 8 is equipped with a negative pressure detection device to control the vacuum pump 7 to automatically start and stop to maintain the negative pressure in the vacuum tank 8 stable. After the degassing requirements are met, the air pumping valve 10 is closed to cut off the negative pressure;

[0025] The recoil mechanism is started, the powder inside the recoil mechanism is cleaned, the bag clamping mouth 5 is loosened, the packaging bag falls automatically, and enters the next bagging link. When the weighing sensor 15 weighs the material in the weighing bucket 3, the negative pressure in the vacuum tank 8 is quickly connected to the packaging bag, and the air in the material is quickly stripped and sucked out of the bag. Weighing and vacuuming are carried out simultaneously, and the packaging speed is faster and more efficient.

[0026] Example 2: In Example 1, when the gas in the bag opening 5 is discharged through the recoil mechanism, the particles in the gas are likely to block the recoil mechanism. Figure 3-4 As another preferred embodiment of the utility model, the difference from embodiment 1 is that the recoil mechanism includes a filter element 13, the filter element 13 is fixedly connected to the frame 14, the filter element 13 is connected to the second connecting pipe, one end of the filter element 13 is connected to the bag clamping port 5, the filter element 13 is connected to the air bag 12, and the air bag 12 is connected to the back-blowing valve 11. After the gas is discharged, the back-blowing valve 11 is opened, and the compressed air in the air bag 12 is quickly back-blown to clean up the powder attached to the filter element 13 to prevent the filter element 13 from being blocked.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Single bucket degassing packaging machine, characterized in that: It comprises a frame (14), wherein: The frame (14) is fixedly connected with a feeding screw mechanism (1), the feeding screw mechanism (1) is connected with a spiral valve (2), the frame (14) is connected with a weighing bucket (3), the weighing bucket (3) is connected with a weighing sensor (15) for weighing, the bottom end of the weighing bucket (3) is connected with a weighing bucket outlet valve (4), the frame (14) is connected with a bag clamping port (5), the upper end of the bag clamping port (5) is connected with a bag clamping port feeding valve (6), the frame (14) is connected with a vacuum tank (8), the bottom end of the vacuum tank (8) is connected with a vacuum pump (7) through a first connecting pipe, the upper end of the vacuum tank (8) is connected with an exhaust valve (10), the exhaust valve (10) is connected with a recoil mechanism through a second connecting pipe, the recoil mechanism is connected with the bag clamping port (5), the bag clamping port (5) is connected with an exhaust pipeline, and the exhaust pipeline is connected with an exhaust valve (9).

2. The single bucket degassing packaging machine according to claim 1, characterized in that: An anti-corrosion layer is sprayed on the frame (14).

3. The single bucket degassing packaging machine according to claim 1, characterized in that: The weighing sensors (15) are provided in plurality and are distributed at equal intervals along the axis direction of the weighing bucket (3).

4. The single bucket degassing packaging machine according to claim 1, characterized in that: The backflushing mechanism comprises a filter element (13), the filter element (13) is fixedly connected to the frame (14), the filter element (13) is connected to the second connecting pipe, one end of the filter element (13) is connected to the bag clamping port (5), the filter element (13) is connected to an air bag (12), and the air bag (12) is connected to a backflush valve (11).

5. The single bucket degassing packaging machine according to claim 2, characterized in that: The bottom end of the frame (14) is fixedly connected with a supporting foot.

6. The single bucket degassing packaging machine according to claim 5, characterized in that: A dust cover (17) is fixedly connected to the frame (14), and the dust cover (17) is located outside the bag clamping opening (5).

Images