Stable bottom sealing device for paper can machine

By designing a paper can sealing device with a double-layer frame and lifting components, the problem of positional displacement caused by shaking during the paper can sealing process was solved, achieving stable sealing and adapting to the needs of paper cans of different sizes, thus improving the sealing quality.

CN224075155UActive Publication Date: 2026-04-03ZHEJIANG FUYUAN METAL CAN IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

During the sealing process of paper cans, shaking can easily occur when pushing the paper can, causing the pressing position to shift and affecting the sealing quality.

Method used

A stable paper can sealing device was designed, comprising a double-layer frame, a pressing structure, and a lifting assembly. The paper can is driven by a cylinder to move closer to or away from the pressing structure. Combined with a limiting placement platform and a guiding structure, the stability of the paper can pressing process is ensured, and the height of the pressing plate can be adjusted according to different sizes of paper cans.

Benefits of technology

It improves the stability and quality of paper can bottom sealing, adapts to the needs of paper cans of different sizes, and enhances practicality and flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stable bottom sealing device for a paper can machine, and relates to the technical field of paper can machines. The stable bottom sealing device for the paper can machine comprises a double-layer rack, a pressing connection structure and a lifting assembly, the pressing connection structure is arranged above the double-layer rack and used for abutting against the top of a paper can in a pressing connection mode, and the lifting assembly is arranged on the inner side of the double-layer rack, coaxially arranged with the pressing connection structure and used for driving the paper can in the direction close to or away from the pressing connection structure. The lifting assembly comprises an air cylinder. According to the stable bottom sealing device for the paper can machine, through the structural design of the lifting assembly, the air cylinder, the limiting placement table and a paper can in the lifting process are guided, the stability of the paper can in the pressing and bottom sealing process is guaranteed, and then the bottom sealing quality of the paper can is improved; in addition, due to the structural design of the crimping structure and the detachable structure of the limiting placement table, the height of the pressing disc can be adjusted according to the requirements of the paper cans of different sizes, the limiting placement tables of different specifications can be replaced for adjustment, practicability and flexibility are high, and application and popularization are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of paper can machine technology, and in particular to a stable bottom sealing device for paper can machines. Background Technology

[0002] The bottom sealing operation of a paper can machine involves placing a paper can with a metal lid on a tray, and then driving a lifting mechanism to press the paper can against the top pressure plate for sealing. However, when pushing the paper can to press the bottom, the paper tube is pushed forward by a cylinder, which is prone to shaking and causes the pressing position to shift, affecting the sealing quality of the paper can. Therefore, a stable bottom sealing device for a paper can machine is provided to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a stable sealing device for paper can machines, which can solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a stable paper can sealing device, comprising a double-layer frame, a pressing structure, and a lifting assembly. The pressing structure is located above the double-layer frame and is used to press against the top of the paper can. The lifting assembly is located inside the double-layer frame and is coaxially arranged with the pressing structure. The lifting assembly is used to drive the paper can towards or away from the pressing structure. The lifting assembly includes a cylinder. A cylinder with its free end vertically upward is installed in the middle of the double-layer frame. Openings are provided in the middle and top of the double-layer frame. The free end of the cylinder extends through the opening to the bottom of the pressing structure and is provided with a limiting placement platform. The free end of the cylinder is detachably connected to the limiting placement platform. A base is fixedly installed at the bottom of the double-layer frame.

[0005] Preferably, the lifting assembly further includes a positioning sleeve and a clamping sleeve. A positioning sleeve with an inner diameter equal to the cylinder's diameter is movably sleeved on the free end of the cylinder, and a clamping sleeve is clamped on the outer wall of the positioning sleeve.

[0006] Preferably, the lifting assembly further includes a connecting column, a support column, and a support rod. A connecting column perpendicular to the axis of the positioning sleeve is connected to the outer wall of the jacket. A support column arranged vertically downward is fixedly connected to the outer wall of the connecting column. A support rod perpendicular to the double-layer frame is fixedly connected to the middle of the double-layer frame. The top end of the support rod is fixedly connected to the bottom end of the support column.

[0007] Preferably, the pressing structure includes a pressure plate, a movable plate, and connecting rods. The pressure plate is disposed above the limiting placement platform, and the movable plate is disposed above the pressure plate and coaxially arranged and horizontally relative to it. Multiple sets of connecting rods arranged in a ring array are fixedly connected between the bottom of the movable plate and the top of the pressure plate.

[0008] Preferably, the pressing structure further includes a guide rod and an adjusting bolt. The surface of the movable plate has multiple sets of circular array holes that extend through it. A guide rod that fits into the hole is movably fitted inside the hole on the movable plate. A threaded hole that is coaxially arranged and extends through the top of the side support and the axis of the movable plate is provided. An adjusting bolt is threaded into the threaded hole on the movable plate. The lower end of the adjusting bolt is fixedly connected to the top of the pressure plate.

[0009] Compared with the prior art, the beneficial effects of this utility model are: the stable paper can sealing device, through the structural design of the lifting component, provides guidance for the cylinder, limiting platform and paper can during the lifting process, ensuring the stability of the paper can pressing and sealing process, thereby improving the sealing quality of the paper can; in addition, the structural design of the pressing structure and the detachable structure of the limiting platform allow for adjustment of the height of the pressing plate and replacement of limiting platforms of different specifications according to the requirements of different sized paper cans, making it highly practical and flexible, and conducive to promotion and use. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0011] Figure 1 This is a perspective view of the present utility model;

[0012] Figure 2 This is a bottom view of the present invention;

[0013] Figure 3 This is an enlarged view of part A of the present invention;

[0014] Figure 4 This is an enlarged view of part B of the present invention;

[0015] Reference numerals in the attached drawings: 1. Double-layer frame; 2. Base; 3. Side support; 4. Pressing structure; 41. Pressing plate; 42. Movable plate; 43. Connecting rod; 44. Guide rod; 45. Adjusting bolt; 5. Lifting assembly; 51. Cylinder; 52. Positioning sleeve; 53. Clamping sleeve; 54. Connecting column; 55. Support column; 56. Supporting top rod; 6. Limiting placement platform. Detailed Implementation

[0016] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] Please see Figure 1-4This utility model provides a technical solution: a stable bottom sealing device for a paper can machine, including a double-layer frame 1, a pressing structure 4, and a lifting assembly 5. The pressing structure 4 is located above the double-layer frame 1 and is used to press against the top of the paper can. The lifting assembly 5 is located inside the double-layer frame 1 and is coaxially arranged with the pressing structure 4. The lifting assembly 5 is used to drive the paper can towards or away from the pressing structure 4. The lifting assembly 5 includes a cylinder 51. A cylinder 51 with its free end vertically upward is installed in the middle of the double-layer frame 1. Openings are provided in the middle and top of the double-layer frame 1. The free end of cylinder 51 extends through the opening to the bottom of the pressing structure 4 and is provided with a limiting placement platform 6; the free end of cylinder 51 is detachably connected to the limiting placement platform 6, and a base 2 is fixedly installed at the bottom of the double-layer frame 1. The lifting assembly 5 also includes a positioning sleeve 52 and a clamping sleeve 53. The free end of cylinder 51 is movably fitted with a positioning sleeve 52 with an inner diameter equal to its diameter. The outer wall of the positioning sleeve 52 is clamped with a clamping sleeve 53, which provides guidance for cylinder 51, limiting placement platform 6 and paper can during the lifting process, ensuring the stability of paper can pressing and sealing process, thereby improving the sealing quality of paper can.

[0018] Furthermore, the lifting assembly 5 also includes a connecting column 54, a support column 55, and a support rod 56. The outer wall of the jacket 53 is connected to a connecting column 54 perpendicular to the axis of the positioning sleeve 52. A vertically downward-facing support column 55 is fixedly connected to the outer wall of the connecting column 54. A support rod 56 perpendicular to the double-layer frame 1 is fixedly connected to the middle of the double-layer frame 1. The top end of the support rod 56 is fixedly connected to the bottom end of the support column 55. The pressing structure 4 includes a pressure plate 41, a movable plate 42, and a connecting rod 43. The pressure plate 41 is provided above the limiting placement platform 6. The movable plate 42 is provided above the pressure plate 41 and is coaxially arranged and horizontal with it. Multiple ring-shaped components are fixedly connected between the bottom of the movable plate 42 and the top of the pressure plate 41. The connecting rods 43 are arranged in a circular array. The pressing structure 4 also includes guide rods 44 and adjusting bolts 45. The surface of the movable plate 42 has multiple sets of circular array holes that are connected through it. The guide rods 44 are movably fitted into the holes on the movable plate 42 and fit into the holes. The top of the side support 3 and the axis of the movable plate 42 are both provided with coaxial and through screw holes. The screw holes on the movable plate 42 are threaded with adjusting bolts 45. The lower end of the adjusting bolts 45 is fixedly connected to the top of the pressing plate 41. With the structural design of the pressing structure 4 and the detachable structure of the limiting placement platform 6, the height of the pressing plate 41 can be adjusted according to the requirements of different sized paper cans, and different specifications of limiting placement platforms 6 can be replaced for adjustment, which is highly practical and flexible.

[0019] Working principle: Replace and install the limiting placement platform 6 suitable for the paper can to be sealed, place the paper can on the limiting placement platform 6, and then place the metal cap at the mouth of the paper can. Then, adjust the height of the pressure plate 41 by rotating the adjusting bolt 45 according to the cylinder 51. Control the extension of the free end of the cylinder 51, and the limiting placement platform 6 will rise accordingly. After the metal cap is on, the paper can is pressed against the pressure plate 41. The support rod 56 provides support and guidance for the lifting and lowering of the free end of the cylinder 51 and the limiting placement platform 6.

[0020] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A stable paper can end seaming apparatus characterized by, The utility model relates to a double -deck frame (1), crimp structure (4) and lifting assembly (5), crimp structure (4) is located the upper of double -deck frame (1) and is used to be in contact with the top of paper can and crimp, lifting assembly (5) is located the inside of double -deck frame (1) and is coaxial with crimp structure (4) setting, lifting assembly (5) is used to drive paper can to the direction of close or far from crimp structure (4), lifting assembly (5) includes cylinder (51), the middle part of double -deck frame (1) is installed with the cylinder (51) of free end vertical upwards setting, the middle part and the top of double -deck frame (1) are all seted up with the opening, the free end of cylinder (51) passes through the opening and extends to the below of crimp structure (4) and is provided with the limit placement platform (6). The lifting assembly (5) further includes a positioning sleeve (52) and a clamping sleeve (53), the free end of the cylinder (51) movably sleeves a positioning sleeve (52) with an inner diameter equal to the diameter thereof, and the outer wall of the positioning sleeve (52) clamps a clamping sleeve (53).

2. A stable paper can end seaming apparatus as claimed in claim 1 wherein: The lifting assembly (5) further includes a connecting column (54), a supporting column (55), and a supporting top rod (56), the outer wall of the clamping sleeve (53) is connected with the connecting column (54) perpendicular to the axis of the positioning sleeve (52), the outer wall of the connecting column (54) is fixedly connected with the supporting column (55) arranged vertically downward, the middle part of the double-deck frame (1) is fixedly connected with the supporting top rod (56) perpendicular to the double-deck frame (1), and the top end of the supporting top rod (56) is fixedly connected with the bottom end of the supporting column (55).

3. A stable paper can end seaming apparatus as defined in claim 2 wherein: The crimp structure (4) includes a pressure plate (41), a movable disc (42), and a connecting rod (43), the top of the limit placement platform (6) is provided with the pressure plate (41), the top of the pressure plate (41) is provided with the movable disc (42) coaxially arranged and horizontally with each other, and a plurality of groups of connecting rods (43) arranged in a ring array are fixedly connected between the bottom of the movable disc (42) and the top of the pressure plate (41).

4. A stable paper can end seaming apparatus as defined in claim 3 wherein: The crimp structure (4) further includes a guide rod (44) and an adjusting bolt (45), a plurality of groups of through sleeve holes arranged in a ring array are formed on the surface of the movable disc (42), the guide rod (44) is movably sleeved in the sleeve hole of the movable disc (42) and is fitted with the sleeve hole, coaxially arranged and through screw holes are formed on the top of the side support (3) and the axis of the movable disc (42), and the adjusting bolt (45) is threadedly connected in the screw hole of the movable disc (42), and the low end of the adjusting bolt (45) is fixedly connected with the top of the pressure plate (41).

5. A stable paper can end seaming apparatus as defined in claim 4 wherein: The free end of the cylinder (51) is detachably connected with the limit placement platform (6), and the bottom of the double-deck frame (1) is fixedly installed with a base (2).

6. A stable paper can end seaming apparatus as defined in claim 5 wherein: ​