Vacuumizing device used before screwing of upper cover

Abstract

The utility model discloses a vacuumizing device before screwing of an upper cover, which relates to the field of cover screwing devices and comprises a workbench, guide rods are fixedly mounted at the top of the workbench, and an electric push cylinder is mounted at the top of the workbench and positioned between the two guide rods. The output end of the electric push cylinder is fixedly connected with a sliding plate in sliding connection with the guide rods, a vacuum cap screwing mechanism is fixedly installed at the top of the sliding plate, a reversing mechanism is installed at one end of the workbench, and the two ends of the reversing mechanism are connected with containing containers. By arranging the vacuum cap screwing mechanism, the bottle body and the bottle cap are in a vacuum state before being screwed, so that after the bottle cap is screwed and under normal pressure, the external air pressure of the bottle body is greater than the internal air pressure of the bottle body, and the bottle cap is not easy to loosen at the moment; and the placing container can be quickly aligned with the cap screwing assembly, so that the working efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of screw capping devices, in particular to a vacuum pumping device before a top cap is screwed on. Background Art

[0002] A capping machine is a device that tightens the bottle cap to the bottle opening. In the prior art, the capping machine performs the capping operation under normal pressure, so the pressure inside the bottle is equal to the pressure outside the bottle. This tightening method is very likely to cause the bottle cap to loosen during transportation, resulting in food safety problems for products (such as bottled cans and bottled bird's nests) due to loose bottle caps. In addition, the existing capping machine needs to align the container with the capping component of the capping machine before capping to avoid misalignment, and the efficiency is slow. Utility Model Content

[0003] The purpose of the present utility model is to provide a vacuum pumping device before tightening the upper cover in order to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the utility model provides the following technical solution: a vacuum extraction device before tightening the upper cover, comprising a workbench, a guide rod fixedly installed on the top of the workbench, an electric push cylinder installed on the top of the workbench between two of the guide rods, an output end of the electric push cylinder fixedly connected to a sliding plate slidably connected to the guide rods, a vacuum capping mechanism fixedly installed on the top of the sliding plate, a reversing mechanism installed at one end of the workbench, and a placement container connected to both ends of the reversing mechanism, the placement container being used to accommodate the bottle body;

[0005] The reversing mechanism is used to drive the two placement containers to switch back and forth in a direction of 180 degrees. The vacuum screw-on cap mechanism includes a screw-on cap assembly and a vacuum assembly. The screw-on cap assembly is used to tighten the cap body to the top opening of the bottle body, and the vacuum assembly is used to extract the air in the placement container before tightening.

[0006] As a further solution of the present invention: the reversing mechanism includes a fixed block fixedly connected to the outer wall of the top end of the workbench, the inner wall of the fixed block is rotatably installed with a connecting shaft, the top of the connecting shaft is fixedly connected to a horizontal plate, the two placement containers are respectively fixedly connected to the two ends of the horizontal plate, the bottom end of the connecting shaft is fixedly connected to a gear, the outer periphery of the gear is meshed with a rack, one end of the rack is fixedly connected to a slider, and a sliding groove for axial sliding of the slider is provided at the bottom of the top end of the workbench.

[0007] As a further solution of the present invention: the length of the slide groove for the slider to slide is half the circumference of the gear, both ends of the slide groove are closed structures, and the vertical sections of the slider and the slide groove are "convex" structures.

[0008] As a further solution of the present invention: the rotary cover assembly includes a rotating motor fixedly connected to the top of the sliding plate, the output shaft of the rotating motor passes through the bottom of the sliding plate and is connected to a rotating shaft, the bottom end of the rotating shaft is fixedly connected to a spinning block, the outer wall of the rotating shaft is movably connected to a sealing cover, and a spring is fixedly connected between the top of the sealing cover and the bottom of the sliding plate.

[0009] As a further solution of the present invention: the vacuum component includes a hollow limiting rod fixedly connected to the top of the cover protrusion, the hollow limiting rod passes through the top of the sliding plate, and the top of the hollow limiting rod is fixedly connected to the limiting plate, and the interior of the hollow limiting rod and the limiting plate are provided with an air hole extending to the bottom of the cover, and the top of the limiting plate is fixedly connected to an air pipe connected to the air hole.

[0010] As a further solution of the present invention: the vertical rod portion of the air pipe away from the limit plate is a bellows structure.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. By setting up a vacuum screw capping mechanism, the bottle body and the bottle cap are in a vacuum state before being tightened. Therefore, after the bottle cap is tightened and under normal pressure, the air pressure outside the bottle body is greater than the air pressure inside the bottle body. At this time, the bottle cap is not easy to loosen. At the same time, by setting up a reversing mechanism, the container and the screw cap assembly can be quickly aligned, further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0015] Figure 3 This is a schematic diagram of the installation of the reversing mechanism of the present invention.

[0016] In the figure: 1. Workbench; 2. Electric push cylinder; 3. Guide rod; 4. Sliding plate; 5. Rotating motor; 6. Rotating shaft; 7. Cover; 8. Spring; 9. Hollow limit rod; 10. Limit plate; 11. Air pipe; 12. Bellows; 13. Fixed block; 14. Connecting shaft; 15. Cross plate; 16. Gear; 17. Placement container; 18. Air hole; 19. Rack; 20. Slide; 21. Slider; 22. Spinning block. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figures 1 to 3 In an embodiment of the present invention, a vacuum extraction device before tightening the upper cover comprises a workbench 1, a guide rod 3 is fixedly installed on the top of the workbench 1, an electric push cylinder 2 is installed on the top of the workbench 1 between the two guide rods 3, the output end of the electric push cylinder 2 is fixedly connected to a sliding plate 4 slidably connected to the guide rod 3, and a vacuum screw-on mechanism is fixedly installed on the top of the sliding plate 4, a reversing mechanism is installed at one end of the workbench 1, and both ends of the reversing mechanism are connected to a placement container 17, which is used to accommodate the bottle body; the reversing mechanism is used to drive the two placement containers 17 to switch back and forth in a direction of one hundred and eighty degrees, and the vacuum screw-on mechanism comprises a screw-on cover assembly and a vacuum assembly, the screw-on cover assembly is used to screw the cover body to the top opening of the bottle body, and the vacuum assembly is used to extract the air in the placement container 17 before tightening.

[0019] After the bottle is placed in the container 17, the bottle cap is placed on the opening at the top of the bottle body. Then, the placing container 17 is rotated to the bottom of the screw cap assembly by the reversing mechanism. Then, the electric push cylinder 2 is started, and the electric push cylinder 2 drives the sliding plate 4 to slide downward along the guide rod 3. The sliding plate 4 drives the vacuum screw cap mechanism to move downward as a whole until the sealing cap 7 of the screw cap mechanism seals the top opening of the placing container 17. At this time, the air pump connected to the vacuum assembly is started, and the air pump extracts the gas in the placing container 17 to achieve a vacuum in the placing container 17. Then, the screw cap assembly is started to rotate the bottle cap to achieve a threaded connection between the bottle cap and the bottle opening. After the connection is completed, the air pump is turned off, and the gas enters the placing container 17. The vacuum state disappears, and the electric push cylinder 2 is started to reset. The electric push cylinder 2 pushes the sliding plate 4 to reset along the guide rod 3. At the same time, the sliding plate 4 drives the vacuum screw cap mechanism to reset.

[0020] At this time, the reversing mechanism is rotated to rotate the placement container 17 located below the vacuum screw capping mechanism out, and the other placement container 17 is rotated to the bottom of the vacuum screw capping mechanism. The bottle body and the untightened bottle cap are placed in the other placement container 17, and the tightened bottle body and bottle cap are taken out from the corresponding placement container 17, and then the bottle body and the untightened bottle cap are put in again after they are taken out.

[0021] Please refer to Figure 1 、 Figure 2 and Figure 3 The reversing mechanism includes a fixed block 13 fixedly connected to the outer wall of the top end of the workbench 1, and a connecting shaft 14 is rotatably installed on the inner wall of the fixed block 13. The top of the connecting shaft 14 is fixedly connected to a horizontal plate 15, and two placement containers 17 are respectively fixedly connected to the two ends of the horizontal plate 15. The bottom end of the connecting shaft 14 is fixedly connected to a gear 16, and a rack 19 is engaged with the outer periphery of the gear 16. One end of the rack 19 is fixedly connected to a slider 21. A slide groove 20 for axial sliding of the slider 21 is provided at the bottom of the top end of the workbench 1. The length of the slide groove 20 for the slider 21 to slide is half the circumference of the gear 16. Both ends of the slide groove 20 are closed structures, and the vertical sections of the slider 21 and the slide groove 20 are "convex" structures.

[0022] In this embodiment, by applying a thrust to any one of the placement containers 17, the placement container 17 drives the connecting shaft 14 to rotate through the cross plate 15, and the rotating connecting shaft 14 synchronously drives the gear 16 to rotate, and the rotating gear 16 drives the rack 19 to move, and the moving rack 19 drives the slider 21 to move along the slide 20. When the slider 21 moves from one end of the slide 20 to the other end, the slider 21 cannot move. At this time, the placement container 17 moved to the bottom of the vacuum screw cap mechanism cannot move, and the applied thrust is maintained to prevent the gear 16 and the rack 19 from resetting in the opposite direction, so that the placement container 17 is effectively located directly under the vacuum screw cap mechanism for quick and effective alignment. When the bottle body and the bottle cap in the placement container 17 located under the vacuum screw cap mechanism are tightened, a directional thrust is applied to the placement container 17, so that the positions of the two placement containers 17 can be switched in the direction of 180 degrees.

[0023] Please refer to Figure 1 and Figure 2 The vacuum assembly includes a hollow limiting rod 9 fixedly connected to the top of the protruding portion of the cover 7, the hollow limiting rod 9 passes through the top of the sliding plate 4, and the top of the hollow limiting rod 9 is fixedly connected to the limiting plate 10, and the hollow limiting rod 9 and the limiting plate 10 are internally provided with an air hole 18 extending to the bottom of the cover 7, and the top of the limiting plate 10 is fixedly connected to an air pipe 11 connected to the air hole 18.

[0024] In this embodiment, by starting the air pump connected to the air pipe 11, the air generated when the air pump is running acts on the inner cavity of the placement container 17 through the air pipe 11 and the air hole 18, so that the air in the inner cavity of the placement container 17 can be extracted, and the vacuum operation can be achieved before the cap is screwed on.

[0025] Please refer to Figure 1 and Figure 2 The rotary cover assembly includes a rotating motor 5 fixedly connected to the top of the sliding plate 4. The output shaft of the rotating motor 5 passes through the bottom of the sliding plate 4 and is connected to the rotating shaft 6. The bottom end of the rotating shaft 6 is fixedly connected to the spinning block 22. The outer wall of the rotating shaft 6 is movably connected to the cover 7. A spring 8 is fixedly connected between the top of the cover 7 and the bottom of the sliding plate 4.

[0026] In this embodiment: after the sealing cap 7 contacts the top of the placement container 17, the sealing of the top opening of the placement container 17 is completed. At this time, the electric push cylinder 2 continues to contract until the spinning block 22 contacts the bottle cap. During this process, the sealing cap 7 remains stationary, and the rotating shaft 6 continues to move downward. During this process, the spring 8 is compressed. When the spinning block 22 contacts the bottle cap and applies effective downward pressure, the rotating motor 5 is started, and the rotating motor 5 drives the spinning block 22 to rotate through the rotating shaft 6 to tighten the bottle cap.

[0027] Please refer to Figure 1 The vertical rod portion of the air pipe 11 away from the limiting plate 10 is a bellows 12 structure.

[0028] In this embodiment: when the cover 7 remains stationary, the sliding plate 4 drives the screw cap assembly to continue to move downward. At this time, the hollow limit rod 9 moves upward relative to the sliding plate 4, and the air pump is installed on the top of the sliding plate 4. The air pump moves downward relative to the cover 7. At this time, the bellows 12 is stretched. This design will not affect the sealing structure of the pipeline.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vacuum pumping device before tightening the upper cover, comprising a workbench (1), characterized in that: A guide rod (3) is fixedly installed on the top of the workbench (1); an electric push cylinder (2) is installed on the top of the workbench (1) between the two guide rods (3); an output end of the electric push cylinder (2) is fixedly connected to a sliding plate (4) slidably connected to the guide rod (3); a vacuum capping mechanism is fixedly installed on the top of the sliding plate (4); a reversing mechanism is installed at one end of the workbench (1); both ends of the reversing mechanism are connected to a placement container (17); the placement container (17) is used to accommodate the bottle body; The reversing mechanism is used to drive the two placement containers (17) to switch back and forth in a direction of one hundred and eighty degrees. The vacuum screw capping mechanism includes a screw capping assembly and a vacuum assembly. The screw capping assembly is used to screw the cover body onto the top opening of the bottle body. The vacuum assembly is used to extract the air in the placement container (17) before screwing.

2. The vacuum extraction device before tightening the upper cover according to claim 1, characterized in that: The reversing mechanism comprises a fixed block (13) fixedly connected to the outer wall of the top end of the workbench (1); a connecting shaft (14) is rotatably mounted on the inner wall of the fixed block (13); a transverse plate (15) is fixedly connected to the top of the connecting shaft (14); two placement containers (17) are respectively fixedly connected to the two ends of the transverse plate (15); a gear (16) is fixedly connected to the bottom end of the connecting shaft (14); a rack (19) is meshed with the outer periphery of the gear (16); a slider (21) is fixedly connected to one end of the rack (19); and a slide groove (20) for axial sliding of the slider (21) is provided at the bottom of the top end of the workbench (1).

3. The vacuum extraction device before tightening the upper cover according to claim 2, characterized in that: The length of the slide groove (20) for the slider (21) to slide is half the circumference of the gear (16), both ends of the slide groove (20) are closed structures, and the vertical sections of the slider (21) and the slide groove (20) are both "convex" structures.

4. The vacuum extraction device before tightening the upper cover according to claim 3, characterized in that: The rotary cover assembly comprises a rotary motor (5) fixedly connected to the top of the sliding plate (4); the output shaft of the rotary motor (5) passes through the bottom of the sliding plate (4) and is connected to a rotary shaft (6); the bottom end of the rotary shaft (6) is fixedly connected to a spinning block (22); the outer wall of the rotary shaft (6) is movably connected to a cover (7); and a spring (8) is fixedly connected between the top of the cover (7) and the bottom of the sliding plate (4).

5. The vacuum extraction device before tightening the upper cover according to claim 4, characterized in that: The vacuum assembly includes a hollow limiting rod (9) fixedly connected to the top of the protruding portion of the cover (7), the hollow limiting rod (9) extends to the top of the sliding plate (4), and the top of the hollow limiting rod (9) is fixedly connected to a limiting plate (10), and an air hole (18) extending to the bottom of the cover (7) is provided inside the hollow limiting rod (9) and the limiting plate (10), and the top of the limiting plate (10) is fixedly connected to an air pipe (11) connected to the air hole (18).

6. The vacuum extraction device before tightening the upper cover according to claim 5, characterized in that: The vertical rod portion of the air pipe (11) away from the limiting plate (10) is a bellows (12) structure.

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