Reciprocating seal gate mechanism for metal powder transfer

Abstract

This utility model relates to the field of metal powder transfer technology and discloses a reciprocating sealing door mechanism for metal powder transfer, comprising: an L-shaped bracket and a linear motor. The linear motor has L-shaped brackets on both sides. The horizontal portion of the L-shaped bracket has a horizontal groove, and the vertical portion has an inclined groove. A slider is slidably mounted on the top of the linear motor, and a connecting plate is rotatably mounted on the top of the slider. A door panel is slidably mounted between the L-shaped brackets. The door panel has rotating shafts at both its upper and lower ends, and rollers at both ends of the rotating shafts. This utility model ensures uniform compression of the sealing rubber gasket when the door panel is closed through precise guidance from the inclined and horizontal grooves. Reinforcing ribs enhance the rigidity of the door panel. After long-term use, the wear rate of the sealing surface is reduced, and the leakage rate is stably controlled within a safe range. This achieves efficient, safe, and reliable operation of the metal powder transfer sealing door.

Description

Technical Field

[0001] This utility model relates to the field of metal powder transfer technology, specifically a reciprocating sealing door mechanism for metal powder transfer. Background Technology

[0002] Metal powder transfer refers to the process of safely and efficiently transferring metal powder from one stage of production, processing, storage or use to another stage.

[0003] Some metal powders, such as aluminum and magnesium powders, are easily oxidized upon contact with air, and the resulting oxides may reduce their activity. If the powder particles are very fine and the concentration reaches the explosive limit, they may explode upon contact with a source of ignition. After loading and transfer, the sealed doors of the containers storing metal powders must be closed promptly. Sealing the doors isolates the air, controlling the oxygen content within a safe range and significantly reducing the risk.

[0004] However, most traditional sealing doors use a side-hinged structure, relying on manual opening and closing. In high-frequency metal powder transfer scenarios, manual opening and closing is time-consuming, causing transfer process interruptions and reducing the overall throughput of the production line; operators need to directly contact the container opening area, posing significant safety hazards; and it is difficult to ensure uniform compression of the sealing strip during manual closing, which can easily lead to excessive leakage rates due to wear of the sealing surface after long-term use. To address this, a reciprocating sealing door mechanism for metal powder transfer is provided. Utility Model Content

[0005] The purpose of this invention is to provide a reciprocating sealing door mechanism for metal powder transfer, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reciprocating sealing door mechanism for metal powder transfer, comprising: an L-shaped bracket and a linear motor. The linear motor has L-shaped brackets on both sides. A horizontal groove is formed inside the horizontal portion of the L-shaped bracket, and an inclined groove is formed inside the vertical portion of the L-shaped bracket. A slider is slidably mounted on the top of the linear motor. A connecting plate is rotatably mounted on the top of the slider. A door panel is slidably mounted between the L-shaped brackets. A rotating shaft is provided at both the top and bottom ends of the door panel. Rollers are provided at both ends of the rotating shaft. The rollers at the top ends of the rotating shaft are located in the inclined groove, and the rollers at the bottom ends of the rotating shaft are located in the horizontal groove. One end of the connecting plate is connected to the bottom rotating shaft.

[0007] Furthermore, a sealing rubber gasket is provided on one side of the door panel, and a reinforcing rib is provided on the other side of the door panel, and there are multiple reinforcing ribs.

[0008] Furthermore, the bottom end of the inclined groove is close to the inner right-angle end of the L-shaped bracket, the diameter of the roller is the same as the width of the inclined groove, and a retaining ring is provided on the outer wall of the roller outside the inclined groove, the diameter of the retaining ring being larger than the width of the inclined groove.

[0009] Furthermore, a dust cover is fixed to the top of the linear motor, and a gap is left between the bottom surface of the dust cover and the top surface of the linear motor for the movement of the slider. A through groove is opened inside the slider for the dust cover to pass through.

[0010] Furthermore, a lead screw is provided in the center of the linear motor, and the slider is connected to the lead screw through a lead screw nut.

[0011] Furthermore, one end of the connecting plate is connected to the slider via a shaft, and the other end of the connecting plate is rotatably connected to a rotating shaft located at the bottom.

[0012] Furthermore, a bearing seat is fixed on one side of the door panel at the pivot connection.

[0013] Furthermore, the slider is in the shape of an inverted convex character.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model's reciprocating sealing door mechanism utilizes a linear drive combined with a synergistic design of inclined and horizontal grooves. A linear motor drives a slider to automatically open and close the door, significantly reducing the time required for a single operation compared to manual operation. This meets the cycle time requirements of high-frequency transfer scenarios, resulting in a substantial increase in production line throughput. Operators do not need to directly contact the container opening area; the sealing door can be opened and closed remotely via the linear motor, improving safety. Precise guidance from the inclined and horizontal grooves ensures uniform compression of the sealing rubber gasket when the door closes, and reinforcing ribs enhance the door's rigidity. Over long-term use, this reduces the wear rate of the sealing surface, and the leakage rate is stably controlled within a safe range. This achieves efficient, safe, and reliable operation of the metal powder transfer sealing door.

[0016] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the reciprocating sealing door mechanism for metal powder transfer according to this utility model;

[0018] Figure 2 This is a schematic diagram of the reciprocating sealing door mechanism for metal powder transfer according to this utility model;

[0019] Figure 3 This is a schematic diagram of the reciprocating sealing door mechanism for metal powder transfer according to this utility model;

[0020] Figure 4 This is a schematic diagram of the reciprocating sealing door mechanism for metal powder transfer according to this utility model;

[0021] Figure 5 This is a schematic diagram of the reciprocating sealing door mechanism for metal powder transfer according to this utility model.

[0022] In the diagram: 1. L-shaped bracket; 2. Horizontal groove; 3. Inclined groove; 4. Door panel; 5. Rotating shaft; 6. Roller; 7. Bearing seat; 8. Reinforcing rib; 9. Linear motor; 10. Slider; 11. Connecting plate; 12. Dust cover; 13. Sealing rubber gasket; 14. Lead screw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1-5 This utility model provides a technical solution: a reciprocating sealing door mechanism for metal powder transfer, comprising: an L-shaped bracket 1 and a linear motor 9. The linear motor 9 has L-shaped brackets 1 on both sides of its exterior. The horizontal portion of the L-shaped bracket 1 has a horizontal groove 2, and the vertical portion has an inclined groove 3. The horizontal groove 2 provides a horizontal sliding track for the rollers 6 of the bottom rotating shaft 5, ensuring smooth movement of the door panel 4 during opening and closing, preventing jamming. The inclined groove 3, with its bottom end near the inner right angle, guides the rollers 6 of the top rotating shaft 5 via an inclined trajectory, enabling the tilting, lifting, and lowering of the door panel 4, reducing the space occupied when the sealing door is opened.

[0025] A slider 10 is slidably mounted on the top of the linear motor 9. A connecting plate 11 is rotatably mounted on the top of the slider 10. A door panel 4 is slidably mounted between the L-shaped brackets 1. The door panel 4 has a rotating shaft 5 at both the top and bottom. Rollers 6 are mounted at both ends of the rotating shaft 5. The rollers 6 at both ends of the rotating shaft 5 at the top are located in the inclined groove 3, and the rollers 6 at both ends of the rotating shaft 5 at the bottom are located in the horizontal groove 2. One end of the connecting plate 11 is connected to the rotating shaft 5 at the bottom. The top of the slider 10 also has a bearing seat, which is hinged to one end of the connecting plate 11 by a pin. The other end of the connecting plate 11 is connected to the rotating shaft 5 at the bottom of the door panel 4 by a bearing, converting the linear motion of the slider 10 into the oscillation of the connecting plate 11, thereby driving the opening and closing of the door panel 4.

[0026] A sealing rubber gasket 13 is provided on one side of the door panel 4, and multiple reinforcing ribs 8 are provided on the other side of the door panel 4. The sealing rubber gasket 13 is fastened to the sealing surface of the door panel 4 by pressure strips and bolts. The reinforcing ribs 8 are welded to the back of the door panel 4 to increase the strength of the door panel 4. When the door panel 4 is closed, the sealing rubber gasket 13 is pressed against the container opening to form a seal, and the reinforcing ribs 8 enhance the door panel 4's resistance to deformation and prevent leakage caused by uneven stress on the sealing surface.

[0027] The bottom end of the inclined groove 3 is close to the inner right-angle end of the L-shaped bracket 1. The diameter of the roller 6 is the same as the width of the inclined groove 3. A retaining ring is provided on the outer wall of the roller 6 outside the inclined groove 3, and the diameter of the retaining ring is larger than the width of the inclined groove 3. The horizontal groove 2 restricts the bottom roller 6 to slide only horizontally, and the retaining ring 6 prevents the roller 6 from falling off, ensuring that the bottom of the door panel 4 moves smoothly. The inclined groove 3 guides the top roller 6 to move obliquely, which, together with the bottom horizontal movement, realizes the opening and closing of the door panel 4.

[0028] A dust cover 12 is fixed to the top of the linear motor 9. A gap is left between the bottom surface of the dust cover 12 and the top surface of the linear motor 9 for the movement of the slider 10. A through groove is opened inside the slider 10 for the dust cover 12 to pass through. The dust cover 12 is fixed to the housing of the linear motor 9 with screws at both ends. The width of the through groove is 0.5mm larger than the thickness of the dust cover 12 to ensure that the slider 10 slides without interference.

[0029] The linear motor 9 has a lead screw 14 at its center, and the slider 10 is connected to the lead screw 14 via a lead screw nut. The lead screw nut drives the slider 10 to reciprocate linearly, realizing automated opening and closing control, replacing manual operation, and improving efficiency and safety.

[0030] One end of the connecting plate 11 is connected to the slider 10 via a shaft, and the other end of the connecting plate 11 is rotatably connected to the rotating shaft 5 located at the bottom. The other end of the connecting plate 11 is connected to the rotating shaft 5 at the bottom of the door panel 4 via a bearing, which converts the linear motion of the slider 10 into the swing of the connecting plate 11, thereby driving the opening and closing of the door panel 4.

[0031] A bearing housing 7 is fixed to one side of the door panel 4 at the connection point of the pivot 5. The bearing housing 7 is fastened to the side of the door panel 4 with bolts. The pivot 5 and the inner ring of the bearing are interference-fitted. The bearing housing 7 reduces the rotational friction of the pivot 5.

[0032] The slider 10 is in the shape of an inverted convex character. The convex shape fits into the linear motor housing to prevent the slider 10 from rotating along with the lead screw 14.

[0033] This utility model's reciprocating sealing door mechanism utilizes a linear drive system in conjunction with the coordinated design of the inclined groove 3 and horizontal groove 2. A linear motor 9 drives the slider 10 to automatically open and close the door panel 4, significantly reducing the single-operation time compared to manual operation. This meets the cycle time requirements of high-frequency transfer scenarios, resulting in a significant increase in production line throughput. Operators do not need to directly contact the container opening area; the sealing door can be opened and closed remotely via the linear motor 9, improving safety. Precise guidance from the inclined groove 3 and horizontal groove 2 ensures uniform compression of the sealing rubber gasket 13 when the door panel 4 closes. Combined with reinforcing ribs 8 to enhance the rigidity of the door panel 4, the wear rate of the sealing surface decreases after long-term use, and the leakage rate is stably controlled within a safe range. This achieves efficient, safe, and reliable operation of the metal powder transfer sealing door.

[0034] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A reciprocating sealing door mechanism for transferring metal powder, comprising: The L-shaped bracket (1) and the linear motor (9) are characterized in that: the linear motor (9) is provided with L-shaped brackets (1) on both sides of the outside; the horizontal part of the L-shaped bracket (1) is provided with a horizontal groove (2); the vertical part of the L-shaped bracket (1) is provided with an inclined groove (3); the linear motor (9) is provided with a slider (10) at the top; the slider (10) is provided with a connecting plate (11) at the top; the L-shaped brackets (1) are provided with a door panel (4) between them; the door panel (4) is provided with a rotating shaft (5) at both the top and bottom; the rotating shaft (5) is provided with rollers (6) at both ends; the rollers (6) at both ends of the rotating shaft (5) at the top are located in the inclined groove (3); the rollers (6) at both ends of the rotating shaft (5) at the bottom are located in the horizontal groove (2); and one end of the connecting plate (11) is connected to the rotating shaft (5) at the bottom.

2. The reciprocating sealing door mechanism for transferring metal powder according to claim 1, characterized in that: The door panel (4) has a sealing rubber pad (13) on one side and a reinforcing rib (8) on the other side. There are multiple reinforcing ribs (8).

3. The reciprocating sealing door mechanism for transferring metal powder according to claim 1, characterized in that: The bottom end of the inclined groove (3) is close to the inner right angle end of the L-shaped bracket (1). The diameter of the roller (6) is the same as the width of the inclined groove (3). The outer wall of the roller (6) is provided with a retaining ring on the outside of the inclined groove (3). The diameter of the retaining ring is greater than the width of the inclined groove (3).

4. The reciprocating sealing door mechanism for transferring metal powder according to claim 1, characterized in that: The top of the linear motor (9) is fixed with a dust cover (12). A gap is left between the bottom surface of the dust cover (12) and the top surface of the linear motor (9) for the slider (10) to move. The slider (10) has a through groove for the dust cover (12) to pass through.

5. A reciprocating sealing door mechanism for transferring metal powder according to claim 1, characterized in that: The linear motor (9) has a lead screw (14) in the center inside, and the slider (10) is connected to the lead screw (14) through the lead screw nut.

6. The reciprocating sealing door mechanism for transferring metal powder according to claim 1, characterized in that: One end of the connecting plate (11) is connected to the slider (10) via a shaft, and the other end of the connecting plate (11) is rotatably connected to the rotating shaft (5) located at the bottom.

7. A reciprocating sealing door mechanism for transferring metal powder according to claim 1, characterized in that: A bearing seat (7) is fixed on one side of the door panel (4) at the connection part of the pivot (5).

8. A reciprocating sealing door mechanism for transferring metal powder according to claim 4, characterized in that: The slider (10) is in the shape of an inverted convex character.

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