Air suction type bag opening device for stemming packaging

Abstract

The utility model provides an air suction type bag opening device for stemming packaging, which comprises a moving frame capable of reciprocating along the horizontal direction, a hollow abdicating cavity is arranged at the central position of the moving frame, and at least two supporting plates capable of moving close to each other and away from each other are arranged on one side of the moving frame. Air holes are formed in the outer surface and the inner wall of the supporting plate, and the air holes are communicated with an air nozzle inner cavity installed at the end of the supporting plate; the stemming packaging machine is reasonable in design structure and convenient to use, an air suction procedure and a bag opening procedure can be combined, air suction operation of a packaging bag can be rapidly achieved after bag opening is finished, the stemming packaging procedure can be shortened, manual intervention is avoided, and packaging efficiency can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of clay production technology, specifically relating to an air-suction bag-supporting device for clay packaging. Background Technology

[0002] Taphole clay is a special refractory material used in the metallurgical industry to seal the taphole of blast furnaces. Its main functions are to seal the taphole, withstand the scouring of high-temperature molten iron, and ensure smooth opening for the next tapping. Based on composition, it can be divided into two main categories: aqueous taphole clay and anhydrous taphole clay. Aqueous taphole clay contains 10%-15% water and uses clay or phosphate as a binder, mainly used in small and medium-sized blast furnaces. Anhydrous taphole clay uses tar, pitch, or resin as a binder and contains no water, suitable for large, high-pressure blast furnaces.

[0003] The existing production process of firecracker clay includes raw material preparation, mixing, extrusion molding, cutting, and packaging. The packaging stage largely relies on manual operation, resulting in low efficiency, poor sealing, and worker exposure to hazardous substances. To address these issues, mechanical packaging equipment has been designed on the market. However, most existing equipment simply fills the clay into bags, leaving a large amount of air inside and preventing the clay from being stored for long periods. While some equipment can perform vacuuming during packaging, the vacuuming and bag-opening processes are separate steps, leading to complex equipment structures, high costs, and low efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an air-suction bag-supporting device for packaging clay. Its design structure is reasonable and easy to use. It can combine the air-suction process with the bag-supporting process. After the bag-supporting is completed, the air-suction operation of the packaging bag can be quickly realized, which can shorten the clay packaging process, avoid manual intervention, and improve packaging efficiency.

[0005] The technical solution adopted by this utility model is: an air-suction bag support device for packaging clay, including a movable frame that can move back and forth in the horizontal direction, a hollow relief cavity at the center of the movable frame, at least two support plates that can move close to and away from each other on one side of the movable frame, and air holes provided on the outer surface and inner wall of the support plates, the air holes being connected to the inner cavity of the air nozzle installed at the end of the support plate.

[0006] The cross-sectional shape of the support plate is an arc-shaped structure.

[0007] The support plate has a tapered shape that is narrow at the front and wide at the rear.

[0008] The support plate has a hollow structure, and the cavity of the support plate is connected to the inner cavity of the air nozzle and the air hole respectively.

[0009] The support plate is a solid structure, with hollow tubes fixed to its inner and outer walls. The hollow tubes are connected to air nozzles, and the air holes are opened in the circumferential direction of the hollow tubes.

[0010] The number of support plates is two, and the two support plates are respectively connected to the bag-supporting cylinders installed at the upper and lower ends of the mobile frame.

[0011] The inner wall of the support plate has a stepped extension near the rear end, and when the support plates are brought together, the extensions on the two support plates can contact each other.

[0012] A slider is connected to the bottom of the movable frame, and the slider is connected to a guide rail in a fixed state. A horizontal drive cylinder for driving the movable frame to move horizontally is connected to one side of the movable frame.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model has a reasonable design and is easy to use. It can combine the air suction process with the bag opening process. After the bag opening is completed, the air suction operation of the packaging bag can be quickly realized, which can shorten the clay packaging process, avoid manual intervention, and improve packaging efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a perspective view of the support plate in Embodiment 1 of this utility model;

[0017] Figure 3 This is a cross-sectional view of the support plate in Embodiment 1 of this utility model;

[0018] Figure 4 This is a perspective view of the support plate in Embodiment 2 of this utility model;

[0019] Figure 5 This is a schematic diagram illustrating the working principle of this utility model.

[0020] The markings in the diagram are: 1. Moving frame; 2. Relief cavity; 3. Bag-supporting cylinder; 4. Support plate; 401. Extension; 5. Air nozzle; 6. Air hole; 7. Slider; 8. Guide rail; 9. Horizontal drive cylinder; 10. Packaging roll; 11. Conveyor wheel; 12. Cutting knife; 13. First hot press plate; 14. Packaging bag; 15. Second hot press plate; 16. Pre-suction nozzle; 17. Clamping plate; 18. Hollow tube. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] As shown in the figure, a suction-type bag-supporting device for packaging clay includes a movable frame 1 that can reciprocate in the horizontal direction. The movable frame 1 is moved by a horizontal drive cylinder 9. A slider 7 is connected to the bottom of the movable frame 1 and is connected to a guide rail 8 that is in a fixed state. A horizontal drive cylinder 9 is connected to one side of the movable frame 1 to drive the movable frame 1 to move horizontally. Under the operation of the horizontal drive cylinder 9, the movable frame 1 can move back and forth. The purpose is to allow the support plate 4 to enter into and exit the packaging bag 14.

[0023] The movable frame 1 has a hollowed-out relief cavity 2 at its center. The purpose of the relief cavity 2 is to facilitate the feeding of the clay into the open packaging bag 14 under the clamping of the clamping plate 17, so as to prevent the movable frame 1 and the support plate 4 from interfering with the feeding process. On one side of the movable frame 1, there are at least two support plates 4 that can move close to each other and away from each other. Air holes 6 are provided on the outer surface and inner wall of the support plates 4. The air holes 6 are connected to the inner cavity of the air nozzle 5 installed at the end of the support plate 4.

[0024] The cross-sectional shape of the support plate 4 is an arc-shaped structure. This is designed so that after the support plate 4 opens the opening of the packaging bag 14, the opening diameter can be opened to the maximum size, so that the clay can be fed into the packaging bag 14.

[0025] The support plate 4 has a tapered structure that is narrow at the front end and wide at the rear end. This design allows the support plate 4 to enter the packaging bag 14 more quickly, avoiding scratches to the packaging bag 14.

[0026] In this example, as Figure 2-3 As shown, the support plate 4 is a hollow structure. The cavity of the support plate 4 is connected to the inner cavity of the air nozzle 5 and the air hole 6. The air nozzle 5 can be connected to an external air source and is connected to a solenoid valve. The solenoid valve can switch to achieve the effect of air intake or air exhaust. When air is intake, air can be blown out from the air hole 6, which can effectively form a bloated state inside the packaging bag 14, so as to facilitate the smooth delivery of the clay into the packaging bag 14. When air is suctioned, external air can enter the air hole 6. On the one hand, when the two support plates 4 contract, the inner wall of the packaging bag 14 can always be attached to the support plates 4 to achieve the purpose of rapid closure. On the other hand, during the contraction of the support plates 4, the air inside the packaging bag 14 can be drawn out, thereby achieving the effect of air suction.

[0027] In this example, there are two support plates 4, which are respectively connected to the bag-supporting cylinders 3 installed at the upper and lower ends of the movable frame 1. In other embodiments, the number of support plates 4 can also be designed to be three or other different numbers, which can also achieve the effect of supporting the bag.

[0028] Specifically, the inner wall of the support plate 4 has an outwardly extending, stepped extension 401 near the rear end. When the support plates 4 are brought together, the extensions 401 on the two support plates 4 can contact each other. This arrangement is to block the air vent near the tail end of the support plate 4 when the two support plates 4 are brought together, so that during the air extraction process, the air outside the packaging bag 14 will not enter the air hole 6, and only the air inside the packaging bag 14 can be discharged from the air hole 6, which helps to improve the air extraction effect.

[0029] In another embodiment, such as Figure 4 As shown, the support plate 4 is a solid structure, and hollow tubes 18 are fixed to the inner and outer walls of the support plate 4 respectively. The hollow tubes 18 are connected to the air nozzles 5, and the air holes 6 are opened in the circumferential direction of the hollow tubes 18. The hollow tubes 18 can be fixed to the inner and outer walls of the support plate 4 by welding or bolting, and the hollow tubes 18 are set along the length of the support plate 4. This setting facilitates the quick connection of the support plate 4 and the hollow tubes 18. Compared with making the support plate 4 with a hollow structure, it is faster and improves the production efficiency. More specifically, the hollow tubes 18 and the air nozzles 5 can be connected by air pipes, and the air intake and intake effects are also controlled by a solenoid valve.

[0030] When using this air-suction bag-supporting device for clay packaging, specifically as follows: Figure 5As shown, the packaging roll 10 is mounted on a rotating shaft. The packaging roll 10 is extended by pulling it out. The packaging roll 10 has a double-layered structure with a through center. After the extended packaging roll 10 is conveyed to the designated position by the conveyor wheel 11, it is first cut to a fixed length by the cutting blade 12 to form a fixed-length packaging bag 14. Then, the tail of the packaging bag 14 is pressed and sealed by the first hot press plate 13, which can move up and down. The lifting and lowering of the first hot press plate 13 is driven by a motor or cylinder. Afterward, the upper and lower pre-suction nozzles 16 located at the front end of the packaging bag 14 respectively adsorb the upper and lower surfaces of the packaging bag 14. The pre-suction nozzles 16 are separated by the cylinder, which initially opens the bag opening of the packaging bag 14. After the opening of the packaging bag 14 is opened, the horizontal drive cylinder 9 drives the moving frame 1 to move towards the packaging bag 14. At this time, the two support plates 4, which are in the closed position, enter the packaging bag 14 and, under the action of the bag-opening cylinder 3, fully open the bag opening. At the same time, the gas blown out from the air hole 6 causes the packaging bag 14 to swell. The packaging bag 14 has two clamping plates 17 at its open front end, which can hold the clay. The clamping plates 17 are driven by a cylinder and can feed the clay into a designated position inside the packaging bag 14. Then, the two support plates 4 come together and the air holes 6 draw in air. The air holes 6 located on the outer wall of the support plates 4 can suck in the opening of the packaging bag 14 and cause the opening to shrink. The air holes 6 located on the inner wall of the support plates 4 can suck in the air inside the packaging bag 14 and achieve the air suction effect. When the two support plates 4 are completely closed, the horizontal drive cylinder 9 drives the moving frame 1 to move away from the packaging bag 14, and the support plates 4 are disengaged from the packaging bag 14. At this time, the second hot press plate 15 at the upper and lower positions of the opening of the packaging bag 14 can seal the packaging bag 14, completing the entire working process.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A suction-type bag-supporting device for packaging clay, characterized in that: It includes a movable frame that can reciprocate in a horizontal direction. The movable frame has a hollowed-out relief cavity at its center. On one side of the movable frame, there are at least two support plates that can move closer to each other and further away from each other. Air holes are provided on the outer surface and inner wall of the support plates. The air holes are connected to the inner cavity of the air nozzle installed at the end of the support plate.

2. The air-suction bag-supporting device for packaging clay according to claim 1, characterized in that: The cross-sectional shape of the support plate is an arc-shaped structure.

3. The air-suction bag-supporting device for packaging clay according to claim 1, characterized in that: The support plate has a tapered shape that is narrow at the front and wide at the rear.

4. The air-suction bag-supporting device for packaging clay according to claim 1, characterized in that: The support plate has a hollow structure, and the cavity of the support plate is connected to the inner cavity of the air nozzle and the air hole.

5. The air-suction bag-supporting device for packaging clay according to claim 1, characterized in that: The support plate is a solid structure, with hollow tubes fixed to its inner and outer walls. The hollow tubes are connected to the air nozzles, and the air holes are opened in the circumference of the hollow tubes.

6. The air-suction bag-supporting device for packaging clay according to claim 1, characterized in that: There are two support plates, which are connected to the bag-supporting cylinders installed at the upper and lower ends of the mobile frame, respectively.

7. A suction-type bag-supporting device for packaging clay according to claim 6, characterized in that: The inner wall of the support plate has a stepped extension near the rear end, which allows the extensions on the two support plates to contact each other when the support plates are brought together.

8. The air-suction bag-supporting device for packaging clay according to claim 1, characterized in that: A slider is connected to the bottom of the movable frame, and the slider is connected to a guide rail that is in a fixed state. A horizontal drive cylinder is connected to one side of the movable frame to drive the movable frame to move horizontally.

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