A can sealing, vacuumizing and nitrogen injecting device

Abstract

A kind of sealing canister vacuum, nitrogen injection device, including sleeve, material supporting platform is slidably installed in sleeve for placing canister;Upper sealing cover is fixed above sleeve, and upper sealing cover opening faces downward, and sealing head is arranged in upper sealing cover, and vacuum interface and nitrogen filling interface are machined on the sidewall of upper sealing cover;Tray is arranged below upper sealing cover for placing can lid, and tray is movably arranged in the accommodation groove in the middle of side push plate, and the center hole is arranged in the middle of tray and matched with the outer diameter of can lid, and the convex edge is formed by extending in the middle of the inner wall of center hole radially to limit can lid, and spline groove is uniformly machined on the inner wall surface of center hole, and circular hole is uniformly machined on tray between spline groove and is internally provided with magnetic block;The device sets convex edge on the inner wall surface of center hole of tray for placing can lid for supporting and positioning the edge of can lid, and circular hole is machined close to convex edge and internally provided with magnetic block to form adsorption positioning to can lid, so that can lid is not prone to displacement during vacuumizing and nitrogen filling, accurate positioning is guaranteed, and sealing precision is guaranteed.

Description

Technical Field

[0001] This utility model relates to a device for sealing a can, vacuuming, and injecting nitrogen. Background Technology

[0002] A can sealing machine is a machine used to seal the opening of cans. These cans are generally categorized as: tin cans, paper cans, aluminum cans, pressure cans, etc. They are also classified by the type of lid, such as aluminum cans and tinplate cans. Based on shape, they are classified as round cans, square cans, etc. Therefore, can sealing machines come in many types based on the type of lid. Generally, they can be divided into: general-purpose can sealing machines, square can sealing machines, and irregular-shaped can sealing machines. With the increasing demands for shelf life in industries such as food, pharmaceuticals, and daily chemicals, vacuum can sealing machines and vacuum nitrogen-filled can sealing machines have emerged. Currently, can sealing machines have a problem with the stability of can lid positioning during the sealing process. The can lid is generally placed directly on a tray, and it is prone to shifting during vacuuming and nitrogen filling, affecting subsequent sealing. Utility Model Content

[0003] To address the shortcomings mentioned above, this utility model provides a device for sealing cans, vacuuming, and injecting nitrogen.

[0004] To achieve the above objectives, this utility model provides a device for sealing a container, vacuuming, and injecting nitrogen, comprising:

[0005] A sleeve is slidably placed in a through hole in the middle of the workbench, and a material support platform is slidably installed inside the sleeve for placing the tank.

[0006] The upper sealing cover is fixed above the sleeve, with its opening facing downwards. A sealing head is provided inside the upper sealing cover, and a vacuum port and a nitrogen filling port are machined on the side wall of the upper sealing cover.

[0007] A tray is located below the upper sealing cover for placing the can lid. The tray is movably placed in the receiving groove in the middle of the side push plate. The right side of the side push plate is connected to a side push cylinder. The center of the tray has a central hole that matches the outer diameter of the can lid. The inner wall of the central hole extends radially to form a raised edge. The edge of the can lid rests on the raised edge. The inner wall of the central hole is uniformly machined to form a spline groove. Circular holes are uniformly machined between adjacent spline grooves and on the tray. A magnetic block is built into the circular hole.

[0008] As a further improvement of this utility model, the bottom of the sleeve is fixed to the base plate, the lower part of the base plate is connected to a lifting cylinder, the lower part of the material support platform is connected to a lifting cylinder I, a through groove is machined in the middle of the base plate for the cylinder rod of the lifting cylinder I to pass through, guide rods are provided on both sides of the sleeve, the base plate and the guide rods form a sliding fit, and a sealing ring is embedded in the middle of the outer circumference of the material support platform, the outer side of the sealing ring abuts against the inner wall of the sleeve.

[0009] As a further improvement of this utility model, a motor is connected to the upper part of the sealing head, the motor is installed on the top of the upper sealing cover, the vacuum port and the nitrogen filling port are respectively connected to the vacuum pump and the nitrogen filling machine, and a sealing ring II is installed at the bottom of the upper sealing cover.

[0010] As a further improvement of this utility model, the distance between the side push plate and the worktable is greater than the height of the tank.

[0011] As a further improvement of this utility model, a guide slope is formed on the upper part of the central hole, a conical surface is formed on the lower part of the outer peripheral surface of the tray, and a sealing ring I is embedded in the bottom of the tray, the position of the sealing ring I corresponding to the sleeve.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The device places the material support platform for the tank inside a liftable sleeve. First, the sleeve lifts the tray to the bottom of the upper sealing cover, thus forming a closed inner cavity inside the sleeve, which facilitates vacuuming and nitrogen filling operations. Then, the material support platform drives the tank to lift the tank cover on the tray to the sealing head inside the upper sealing cover for sealing operation. The structure is reasonable, automatically forming a closed inner cavity and completing the vacuuming, nitrogen filling and sealing process.

[0014] 2. By setting a raised edge on the inner wall of the center hole of the tray where the can lid is placed for edge support and positioning of the can lid, and by machining a round hole near the raised edge and embedding a magnetic block to form an adsorption positioning for the can lid, the can lid is not easy to shift during vacuuming and nitrogen filling, the positioning is accurate, and the sealing accuracy is guaranteed. Attached Figure Description

[0015] Figure 1 This is a front view of a sealing, vacuuming, and nitrogen-injecting device according to the present invention.

[0016] Figure 2 This is a top view of tray 6;

[0017] Figure 3 This is a cross-sectional view of tray 6;

[0018] Figure 4 This is a schematic diagram of the operation of a sealing, vacuuming, and nitrogen injection device according to this utility model. Figure 1 ;

[0019] Figure 5 This is a schematic diagram of the operation of a sealing, vacuuming, and nitrogen injection device according to this utility model. Figure 2 .

[0020] In the diagram: 1. Workbench; 13. Through hole; 2. Sleeve; 21. Base plate; 211. Through groove; 22. Guide rod; 23. Lifting cylinder; 3. Material support platform; 31. Lifting cylinder I; 32. Sealing ring; 4. Tank body; 5. Side push plate; 51. Receiving groove; 52. Side push cylinder; 6. Tray; 61. Center hole; 62. Spline groove; 63. Raised edge; 64. Guide slope; 65. Round hole; 66. Magnetic block; 67. Sealing ring I; 68. Conical surface; 7. Tank cover; 8. Upper sealing cover; 81. Vacuum interface; 82. Nitrogen filling interface; 83. Sealing ring II; 9. Vacuum pump; 10. Sealing head; 11. Motor; 12. Nitrogen filling machine. Detailed Implementation

[0021] like Figure 1 As shown, the present invention provides a sealing, vacuuming, and nitrogen injection device for a can, including a sleeve 2. The sleeve 2 is slidably placed in a through hole 13 in the middle of the workbench 1. A material support platform 3 is slidably installed in the sleeve 2 for placing the can 4. The bottom of the sleeve 2 is fixed to the bottom plate 21. The bottom part of the bottom plate 21 is connected to a lifting cylinder 23. The bottom part of the material support platform 3 is connected to a lifting cylinder I 31. A through groove 211 is machined in the middle of the bottom plate 21 for the cylinder rod of the lifting cylinder I 31 to pass through. Guide rods 22 are provided on both sides of the sleeve 2. The bottom plate 21 and the guide rods 22 form a sliding fit. A sealing ring 32 is embedded in the middle of the outer circumference of the material support platform 3. The outer side of the sealing ring 32 abuts against the inner wall of the sleeve 2.

[0022] Upper sealing cover 8 is fixed above sleeve 2 with its opening facing downward. Inside upper sealing cover 8 is sealing head 10. Vacuum interface 81 and nitrogen filling interface 82 are machined on the side wall of upper sealing cover 8. Motor 11 is connected to the upper part of sealing head 10 and is installed on top of upper sealing cover 8. Vacuum interface 81 and nitrogen filling interface 82 are respectively connected to vacuum pump 9 and nitrogen filling machine 12. Sealing ring II 83 is installed at the bottom of upper sealing cover 8.

[0023] Tray 6, located below the upper sealing cover 8, is used to hold the can lid 7. Tray 6 is movably positioned within the receiving groove 51 in the middle of the side push plate 5. The right side of the side push plate 5 is connected to the side push cylinder 52. The distance between the side push plate 5 and the worktable 1 is greater than the height of the can body 4. Tray 6 has a central hole 61 in the middle that matches the outer diameter of the can lid 7. A raised edge 73 extends radially from the middle of the inner wall of the central hole 61. The edge of the can lid 7 rests on the raised edge 73. Spline grooves 62 are uniformly machined on the inner wall of the central hole 61. Circular holes 65 are uniformly machined between adjacent spline grooves 62 and on the tray 6. A magnetic block 66 is housed within the circular hole 65. A guide slope 64 is machined on the upper part of the central hole 61. A conical surface 68 is machined on the lower part of the outer circumference of the tray 6. A sealing ring I 67 is embedded at the bottom of the tray 6. The position of the sealing ring I 67 corresponds to that of the sleeve 2 (see...). Figure 2 , Figure 3 ).

[0024] The device places the tray holding the can inside a liftable sleeve. First, the sleeve lifts the tray to the bottom of the upper sealing cover, thus forming a closed inner cavity inside the sleeve, which facilitates vacuuming and nitrogen filling operations. Then, the tray lifts the can body, lifting the can lid on the tray to the sealing head inside the upper sealing cover for sealing. The structure is reasonable, automatically forming a closed inner cavity and completing the vacuuming, nitrogen filling, and sealing processes. By setting a raised edge on the inner wall of the center hole of the tray where the can lid is placed for edge support and positioning of the can lid, and by machining a round hole near the raised edge and embedding a magnetic block to form an adsorption positioning for the can lid, the can lid is not easy to shift during vacuuming and nitrogen filling, ensuring accurate positioning and sealing precision.

[0025] In practical use, for ease of understanding of this utility model, it will be described in conjunction with the accompanying drawings;

[0026] During operation, the initial positions of the material support platform and the sleeve are flush with the workbench surface, with the initial position of the tray located to the right of the upper sealing cover. The can is placed on the upper part of the material support platform, and the can lid is placed inside the center hole of the tray. The edge of the can lid rests on the raised edge inside the center hole. The magnetic block inside the circular hole on the outer side of the raised edge creates an attractive force on the can lid. Then, the side-push cylinder moves the side-push block and the tray to the left until the tray is directly below the upper sealing cover. Next, the lifting cylinder pushes the base plate and the sleeve upwards, with the upper end of the sleeve abutting against the sealing ring I at the bottom of the tray, lifting the entire tray upwards until the upper surface of the tray abuts against the lower part of the upper sealing cover (see...). Figure 4 The upper sealing cover, tray, sleeve, and material support platform work together to form a closed inner cavity. The inner cavity of the upper sealing cover is connected to the inner cavity of the sleeve through a spline groove on the tray. A vacuum pump evacuates this closed inner cavity through a vacuum port to ensure that the oxygen residual rate in the tank is less than 3%. Then, a nitrogen filling machine injects nitrogen into the closed inner cavity through a nitrogen filling port to ensure that the product in the tank is not oxidized in this inert gas environment. After nitrogen filling is completed, the lifting cylinder I drives the material support platform and the tank body to rise upwards. The upper edge of the tank body contacts the bottom of the tank cover and pushes the tank cover out of the tray until the tank cover rises to the position of the sealing head. The sealing head then seals the tank cover to the tank body (see...). Figure 5 After completion, the material support platform and sleeve move down to their original positions, the side push block moves the tray to the right to its original position, and the sealed can is then removed.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A can sealing, vacuumizing and nitrogen injecting apparatus, characterized by comprising: a can sealing device for sealing a can; a vacuumizing device for vacuumizing the can; and a nitrogen injecting device for injecting nitrogen into the can. include: Sleeve (2), the sleeve (2) is slidably placed in the through hole (13) in the middle of the workbench (1), and a material support platform (3) is slidably installed in the sleeve (2) for placing the tank (4); Upper sealing cover (8) is fixed above the sleeve (2), with the opening of the upper sealing cover (8) facing downward. A sealing head (10) is provided inside the upper sealing cover (8), and a vacuum port (81) and a nitrogen filling port (82) are machined on the side wall of the upper sealing cover (8). A tray (6) is placed below the upper sealing cover (8) for placing the can lid (7). The tray (6) is movably placed in the receiving groove (51) in the middle of the side push plate (5). The side push plate (5) is connected to the right side of the side push cylinder (52). The tray (6) has a central hole (61) in the middle that matches the outer diameter of the can lid (7). The inner wall of the central hole (61) extends radially to form a raised edge (73). The edge of the can lid (7) rests on the raised edge (73). The inner wall of the central hole (61) is uniformly machined to form a spline groove (62). Circular holes (65) are uniformly machined between adjacent spline grooves (62) and on the tray (6). A magnetic block (66) is built into the circular hole (65).

2. The can sealing, vacuumizing and nitrogen injecting apparatus according to claim 1, wherein: The bottom of the sleeve (2) is fixed to the base plate (21). The lower part of the base plate (21) is connected to the lifting cylinder (23). The lower part of the material support platform (3) is connected to the lifting cylinder I (31). A through groove (211) is machined in the middle of the base plate (21) for the cylinder rod of the lifting cylinder I (31) to pass through. Guide rods (22) are provided on both sides of the sleeve (2). The base plate (21) and the guide rods (22) form a sliding fit. A sealing ring (32) is embedded in the middle of the outer circumference of the material support platform (3). The outer side of the sealing ring (32) abuts against the inner wall of the sleeve (2).

3. The can sealing, vacuumizing and nitrogen injecting apparatus according to claim 1, wherein: The upper part of the sealing head (10) is connected to a motor (11), the motor (11) is installed on the top of the upper sealing cover (8), the vacuum port (81) and the nitrogen filling port (82) are respectively connected to the vacuum pump (9) and the nitrogen filling machine (12), and a sealing ring II (83) is installed at the bottom of the upper sealing cover (8).

4. The can sealing, vacuumizing and nitrogen injecting apparatus according to claim 1, wherein: The distance between the side push plate (5) and the workbench (1) is greater than the height of the tank (4).

5. The can vacuuming and nitrogen injecting apparatus according to claim 1, wherein: The upper part of the central hole (61) is machined to form a guide slope (64), the lower part of the outer peripheral surface of the tray (6) is machined to form a conical surface (68), and the bottom of the tray (6) is embedded with a sealing ring I (67), the position of the sealing ring I (67) corresponding to the sleeve (2).

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