Portable manual can sealing device and manual can sealing method thereof

Abstract

The portable manual can sealing device comprises a pressing head used for pressing a can cover downwards, a mounting frame, a swing arm, an edge sealing wheel assembly, a fine adjustment assembly and an adjusting handle, and the pressing head is arranged on the mounting frame in a rotating mode; the swing arm is movably arranged on the mounting frame, the edge sealing wheel assembly comprises an edge sealing wheel and a connecting shaft, the upper section of the connecting shaft is connected with the swing arm, the lower section of the connecting shaft is connected with the edge sealing wheel, and the fine adjustment assembly limits the rotating angle of the swing arm, so that the minimum rolling distance is formed between the edge sealing wheel and the pressing head. When the edge of the can cover is curled, the stress of the can cover is consistent, the edge curling effect is good, due to the consistent curled edges, the curled edges can be meshed with the can body through the edge sealing wheel to form a sealed can subsequently, and the sealing effect is good.

Description

Technical Field

[0001] The invention relates to a portable manual can sealing device and a manual can sealing method thereof. Background Art

[0002] A can seamer is a piece of equipment used to seal cans or containers and is commonly used in industries such as food, beverage, pharmaceutical and cosmetics.

[0003] There are various can sealing machines on the market, but they are usually designed for use in factories or large-scale production environments and are not suitable for personal use. Therefore, if an individual wants to place food in a can and then use a portable device to seal the can for storage, it is difficult for the user to seal the can (the combination of the can lid and the can body) because there are no portable can sealing machines on the market at this stage. Summary of the invention

[0004] The first object of the present invention is to provide a portable manual can sealing device which is easy to carry, has good can sealing effect and is easy to operate.

[0005] A second object of the present invention is to provide a manual can sealing method that is easy to operate.

[0006] The first object of the present invention is achieved by: A portable manual can sealing device comprises a pressure head for pressing down a can cover, a mounting frame, a swing arm, an edge sealing wheel assembly, a fine adjustment assembly and an adjustment handle, wherein the pressure head is rotatably arranged on the mounting frame; The swing arm is movably arranged on the mounting frame, the edge banding wheel assembly comprises an edge banding wheel and a connecting shaft, the upper section of the connecting shaft is connected to the swing arm, the lower section of the connecting shaft is connected to the edge banding wheel, and the edge banding wheel rotates with the lower section of the connecting shaft as the rotation center; The adjusting handle is connected to the swing arm, and the adjusting handle drives the swing arm to move on the mounting frame, thereby adjusting the distance between the edge banding wheel and the pressure head; The fine-tuning assembly is arranged on the mounting frame, and the fine-tuning assembly limits the rotation angle of the swing arm, thereby adjusting the shortest rolling distance between the edge banding wheel and the pressure head; A lock for locking or releasing the rotation state of the swing arm is arranged between the swing arm and the mounting frame.

[0007] The user rotates the adjustment handle, and the adjustment handle drives the swing arm to move on the mounting frame to adjust the distance between the edge banding wheel and the pressure head. Since the distance between the edge banding wheel and the pressure head is variable, it can meet the requirements of bite sealing of cans with different diameters, thereby improving the applicability of the portable manual can sealing device.

[0008] When sealing a can, the user first assembles the can cover and the can body into an unsealed can state, and then extends the pressure head into the concave cavity of the can cover. The user presses the pressure head with one hand to put the can cover and the can body in a compressed state, and holds the adjustment handle with the other hand and rotates the adjustment handle. The adjustment handle drives the edge sealing wheel to slide along the outer circumference of the can cover to perform curling and biting processing, so that the can cover and the can body are sealed. The operation is simple and meets the user's needs for manual can sealing.

[0009] The fine-tuning component limits the rotation angle of the swing arm, so that the closest rolling distance is formed between the edge banding wheel and the pressure head. Due to the existence of the closest rolling distance, the can cover is subjected to uniform force when curling, and the curling effect is good. Due to the uniform curling, it is convenient for the subsequent edge banding wheel to bite the curling edge into the can body to form a sealed can, and the sealing effect is good.

[0010] The first object of the present invention can also be solved by the following technical measures: Furthermore, the center of the swing arm is movably arranged on a mounting frame, and the edge banding wheel assemblies are respectively arranged at both ends of the swing arm.

[0011] The edge banding wheel assembly on the left side of the swing arm can be used for the crimping operation of the can cover, and the edge banding wheel assembly on the right side of the swing arm can be used for the biting operation after the crimping of the can cover. Through the crimping and biting operations, the can cover and the can body are more reliably sealed.

[0012] Furthermore, it also includes a bearing and a pressing handle. The mounting frame has a bearing mounting opening near its end, the bearing is arranged in the bearing mounting opening, the pressure head is provided with a connecting rod, the connecting rod and the inner ring of the bearing are fixedly connected, the pressing handle is located on the surface of the mounting frame, the end of the connecting rod extends out of the bearing and is connected to the pressing handle, the pressing handle drives the pressure head to rotate through the connecting rod, and the mounting frame rotates with the connecting rod as the rotation center.

[0013] The mounting frame and the pressure head are connected by a bearing. The user drives the mounting frame to rotate around the pressure head with the connecting rod as the rotation center by adjusting the handle, thereby driving the edge sealing wheel assembly to rotate around the pressure head to curl and bite the can cover to achieve can sealing. Furthermore, it also includes a slider, the mounting frame has a first sliding groove along its length direction, the slider is placed in the first sliding groove, the upper end of the slider extends out of the mounting frame to connect to the swing arm, the lower end of the slider extends out of the mounting frame to connect to the adjustment handle, the adjustment handle drives the swing arm to slide along the length direction of the mounting frame through the slider, the first sliding groove limits the sliding distance of the slider, thereby limiting the sliding distance of the swing arm.

[0014] Furthermore, a lower extension plate is provided on the bottom surface of the mounting frame, and a threaded hole is opened on the lower extension plate. The adjustment handle includes a threaded rod and a gripping handle. The threaded rod passes through the threaded hole, one end of the threaded rod is connected to the lower end of the slider, and the other end of the threaded rod is connected to the gripping handle.

[0015] Furthermore, the mounting frame is provided with a second sliding groove and a third sliding groove parallel to each other along its length direction, the swing arm is provided with a left plug hole at a position corresponding to the second sliding groove, and the swing arm is provided with a right plug hole at a position corresponding to the third sliding groove; When the swing arm rotates clockwise, the right insertion hole is aligned with the third slide slot, a locking member passes through the right insertion hole and enters the third slide slot, and the other locking member passes through the left insertion hole and abuts against the side wall of the mounting frame, and the two locking members jointly lock the rotation angle of the swing arm; When the swing arm rotates counterclockwise, the left insertion hole is aligned with the second slide slot, a locking piece passes through the left insertion hole and enters the second slide slot, and the other locking piece passes through the right insertion hole and abuts against the side wall of the mounting frame, and the two locking pieces jointly lock the rotation angle of the swing arm.

[0016] Furthermore, it also includes a locking bolt. The upper end of the slider is connected to the center of the swing arm. The swing arm has a mounting opening near its end. The end of the swing arm has a transverse screw hole connected to the mounting opening. The upper section of the connecting shaft is inserted into the mounting opening. The locking bolt passes through the transverse screw hole into the mounting opening and presses the connecting shaft, thereby locking the connecting shaft.

[0017] Furthermore, the upper section of the connecting shaft and the lower section of the connecting shaft are misaligned to form an eccentric edge banding wheel assembly. Since the edge banding wheel assembly is eccentric, the position of the edge banding wheel is variable, and the distance between the edge banding wheel and the pressure head can be changed by adjusting the position of the edge banding wheel to meet the sealing operation of cans with different diameters. Moreover, the edge banding wheel position can be changed by changing the position of the edge banding wheel by the eccentric edge banding wheel assembly and by adjusting the position of the swing arm. The two methods are combined to change the position of the edge banding wheel to meet the sealing operation of cans with different diameters. The combination of the two methods can reduce the moving path of the swing arm, thereby reducing the volume of the portable manual can sealing device, thereby reducing the space occupied by the portable manual can sealing device.

[0018] Furthermore, the fine-tuning assembly includes an upper extension plate and a fine-tuning bolt. The upper extension plate is arranged on the surface of the mounting frame. The upper extension plate has a fine-tuning screw hole. The fine-tuning bolt is arranged at the fine-tuning screw hole. The tail end of the fine-tuning bolt extends toward the swing arm, and the fine-tuning bolt limits the rotation angle of the swing arm.

[0019] The fine-tuning bolt limits the rotation angle of the swing arm, so that the closest rolling distance is formed between the edge banding wheel and the pressure head. Due to the existence of the closest rolling distance, the can cover is subjected to uniform force when curling, and the curling effect is good. Due to the uniform curling, it is convenient for the subsequent edge banding wheel to bite the curling edge into the can body to form a sealed can, and the sealing effect is good.

[0020] The second object of the present invention is achieved by: A manual can sealing method using a portable manual can sealing device comprises the following steps: S1: The user drives the swing arm to move on the mounting frame by adjusting the handle to adjust the distance between the edge banding wheel and the pressure head to meet the sealing requirements of cans with different diameters; S2: The user adjusts the fine-tuning component, which limits the rotation angle of the swing arm and adjusts the closest rolling distance between the edge banding wheel and the pressure head; S3: The user assembles the can cover and the can body into an unsealed can state and places it on a flat surface, and then extends the pressure head into the concave cavity of the can cover; S4: The user pushes the swing arm to rotate clockwise until the swing arm rests against the fine-tuning assembly, and the edge banding wheel and the pressure head form the shortest rolling distance. At the same time, the edge banding wheel on the left side of the swing arm is close to the can cover. Then the user locks the rotation state of the swing arm through the lock. S5: The user presses the pressure head with one hand and holds the adjustment handle with the other hand. The user presses down the pressure head to make the can cover and the can body in a compacted state. The user rotates the adjustment handle to drive the edge sealing wheel on the left side of the swing arm to slide along the outer periphery of the can cover to perform the curling process on the outer edge of the can cover. S6: The user unlocks the lock, the swing arm is in a free state, and the user pushes the swing arm to rotate counterclockwise. At this time, the edge sealing wheel on the right side of the swing arm is close to the can cover, and then the user locks the rotation state of the swing arm through the lock; S7: The user presses the pressure head with one hand and holds the adjustment handle with the other hand. The user presses down the pressure head to put the can cover and the can body in a compressed state. The user rotates the adjustment handle to drive the edge sealing wheel on the right side of the swing arm to roll along the outer circumference of the can cover, so that the curled edge of the can cover and the top extension of the can body are engaged, completing the sealing of the can cover and the can body.

[0021] Through the above method, the user can manually seal the can cover and the can body, and the operation is simple.

[0022] The beneficial effects of the present invention are as follows: According to the present invention, a user rotates the adjustment handle, and the adjustment handle drives the swing arm to move on the mounting frame to adjust the distance between the edge banding wheel and the pressure head. Since the distance between the edge banding wheel and the pressure head is variable, cans with different diameters can be bitten and sealed, thereby improving the applicability of the portable manual can sealing device.

[0023] According to the present invention, when sealing a can, the user first assembles the can cover and the can body into an unsealed can state, and then extends the pressure head into the concave cavity of the can cover. The user presses the pressure head with one hand to put the can cover and the can body in a compressed state, and holds the adjusting handle with the other hand and rotates the adjusting handle. The adjusting handle drives the edge sealing wheel to slide along the outer periphery of the can cover to perform curling and biting processing, so that the can cover and the can body are sealed. The operation is simple, and the user's needs for manually sealing the can are met.

[0024] In the present invention, the fine-tuning bolt limits the rotation angle of the swing arm, so that the closest rolling distance is formed between the edge banding wheel and the pressure head. Due to the existence of the closest rolling distance, when the can cover is curled, the can cover is subjected to uniform force, and the curling effect is good. Due to the uniform curling, it is convenient for the subsequent edge banding wheel to bite the curled edge into the can body to form a sealed can, and the sealing effect is good.

[0025] According to the present invention, since the edge banding wheel assembly is eccentric, the position of the edge banding wheel can be changed. By adjusting the position of the edge banding wheel, the distance between the edge banding wheel and the pressure head can be changed to meet the sealing operation of cans with different diameters. Moreover, the position of the edge banding wheel can be changed by using the eccentric edge banding wheel assembly and by adjusting the position of the swing arm. The two methods are combined to change the position of the edge banding wheel to meet the sealing operation of cans with different diameters. The combination of the two methods can reduce the moving path of the swing arm, thereby reducing the volume of the portable manual can sealing device, thereby reducing the space occupied by the portable manual can sealing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a portable manual can sealing device.

[0027] Figure 2 Schematic diagram of a portable manual can sealing device (the swing arm rotates clockwise).

[0028] Figure 3 This is a schematic diagram of the portable manual can sealing device from another angle (the swing arm rotates clockwise).

[0029] Figure 4 A top view of the portable manual can sealing device (the swing arm rotates clockwise).

[0030] Figure 5 It is a cross-sectional view of a portable manual canning device (the swing arm rotates clockwise).

[0031] Figure 6 Schematic diagram of a portable manual can sealing device (the swing arm rotates counterclockwise).

[0032] Figure 7 This is a schematic diagram of the portable manual can sealing device from another angle (the swing arm rotates counterclockwise).

[0033] Figure 8 A top view of the portable manual can sealing device (the swing arm rotates counterclockwise).

[0034] Fig. 9 It is a cross-sectional view of a portable manual canning device (the swing arm rotates counterclockwise).

[0035] Fig.10 An exploded view of a portable manual can sealing device. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Example, combined with Figures 1 to 10 As shown, a portable manual can sealing device includes a pressure head 1 for pressing down the can cover, a mounting frame 2, an edge sealing wheel assembly 3, a fine adjustment assembly 4, an adjustment handle 5, a swing arm 6, a pressing handle 100, a bearing 7, a slider 8, a locking piece 9 and a locking bolt 10.

[0037] The mounting frame 2 is provided with a bearing mounting opening 21 near the front end thereof, and the bearing 7 is arranged in the bearing mounting opening 21 .

[0038] The bottom of the mounting frame 2 at the rear end thereof is provided with a lower extension plate 22 , and the lower extension plate 22 is provided with a threaded hole 221 .

[0039] The mounting frame 2 has a first slide groove 23 along its length direction, and has a second slide groove 24 and a third slide groove 25 along its length direction. The second slide groove 24 is located on the left side of the first slide groove 23 , and the third slide groove 25 is located on the right side of the first slide groove 23 .

[0040] The swing arm 6 has a mounting opening 61 near its end, a transverse screw hole 62 connected to the mounting opening 61 at the end of the swing arm 6, and a left plug hole 63 is opened on the left side of the center of the swing arm 6, and a right plug hole 64 is opened on the right side of the center of the swing arm 6.

[0041] The edge banding wheel assembly 3 includes an edge banding wheel 31 and a connecting shaft 32, wherein an upper section 321 of the connecting shaft 32 and a lower section 322 of the connecting shaft 32 are offset, and the lower section 322 of the connecting shaft 32 is connected to the edge banding wheel 31, and the edge banding wheel 31 rotates with the lower section 322 of the connecting shaft 32 as the rotation center, thereby forming an eccentric edge banding wheel assembly 3.

[0042] The upper section 321 of the connecting shaft 32 is inserted into the corresponding installation opening 61 , and the locking bolt 10 passes through the transverse screw hole 62 into the installation opening 61 and presses the connecting shaft 32 , so that the edge banding wheel assembly 3 is respectively arranged at both ends of the swing arm 6 .

[0043] The pressing handle 100 is located on the surface of the mounting frame 2, and the pressing head 1 is provided with a connecting rod 11, and the connecting rod 11 is fixedly connected to the inner ring of the bearing 7. At the same time, the end of the connecting rod 11 extends out of the bearing 7 and is connected to the pressing handle 100. The pressing handle 100 drives the pressing head 1 to rotate through the connecting rod 11, and the mounting frame 2 rotates with the connecting rod 11 as the rotation center.

[0044] The slider 8 is placed in the first slide groove 23, the swing arm 6 is seated on the surface of the mounting frame 2, the upper end of the slider 8 extends out of the surface of the mounting frame 2 to connect the center of the swing arm 6, and the lower end of the slider 8 extends out of the bottom of the mounting frame 2. The adjustment handle 5 includes a threaded rod 51 and a gripping handle 52. The threaded rod 51 passes through the threaded hole 221, one end of the threaded rod 51 is connected to the lower end of the slider 8, and the other end of the threaded rod 51 is connected to the gripping handle 52. The adjustment handle 5 drives the swing arm 6 to slide along the length direction of the mounting frame 2 through the slider 8, thereby adjusting the distance between the edge banding wheel 31 and the pressure head 1. The first slide groove 23 limits the sliding distance of the slider 8, thereby limiting the sliding distance of the swing arm 6.

[0045] The fine-tuning assembly 4 includes an upper extension plate 41 and a fine-tuning bolt 42. The upper extension plate 41 is arranged on the surface of the mounting frame 2. The upper extension plate 41 is provided with a fine-tuning screw hole 411. The fine-tuning bolt 42 is arranged at the fine-tuning screw hole 411. The tail end of the fine-tuning bolt 42 extends toward the swing arm 6. The fine-tuning bolt 42 limits the rotation angle of the swing arm 6, thereby adjusting the closest rolling distance 200 between the edge banding wheel 31 on the left side of the swing arm 6 and the pressure head 1 to be less than 4 mm.

[0046] The left insertion hole 63 is opened at the position of the swing arm 6 corresponding to the second slide slot 24, and the right insertion hole 64 is opened at the position of the swing arm 6 corresponding to the third slide slot 25. When the swing arm 6 rotates clockwise, the right insertion hole 64 is aligned with the third slide slot 25, one locking piece 9 passes through the right insertion hole 64 and enters the third slide slot 25, and the other locking piece 9 passes through the left insertion hole 63 and abuts against the side wall of the mounting frame 2, and the two locking pieces 9 jointly lock the rotation angle of the swing arm 6. When the swing arm 6 rotates counterclockwise, the left insertion hole 63 is aligned with the second slide slot 24, one locking piece 9 passes through the left insertion hole 63 and enters the second slide slot 24, and the other locking piece 9 passes through the right insertion hole 64 and abuts against the side wall of the mounting frame 2, and the two locking pieces 9 jointly lock the rotation angle of the swing arm 6.

[0047] A manual can sealing method using a portable manual can sealing device comprises the following steps: S1: The user drives the swing arm 6 to move on the mounting frame 2 by adjusting the handle 5 to adjust the distance between the edge banding wheel 31 and the pressure head 1 to meet the sealing requirements of cans with different diameters.

[0048] S2: The user adjusts the length of the fine-tuning bolt 42 extending toward the swing arm 6. The fine-tuning bolt 42 limits the clockwise rotation angle of the swing arm 6 and adjusts the minimum rolling distance between the edge banding wheel 31 on the left side of the swing arm 6 and the pressure head 1 to 200; S3: The user assembles the can cover and the can body into an unsealed can state and places it on a flat surface, and then extends the pressure head 1 into the concave cavity of the can cover.

[0049] S4: The user pushes the swing arm 6 to rotate clockwise until the swing arm 6 rests on the fine-tuning bolt 42, and the edge banding wheel 31 on the left side of the swing arm 6 and the pressure head 1 form the shortest rolling distance 200. At the same time, the edge banding wheel 31 on the left side of the swing arm 6 is close to the tank cover. Then the user locks the rotation state of the swing arm 6 through the locking piece 9.

[0050] S5: The user holds the pressing handle 100 with one hand and the adjusting handle 5 with the other hand. The user presses the pressing handle 100 to press the pressure head 1 so that the can cover (not shown in the figure) and the can body (not shown in the figure) are in a compressed state. The user rotates the adjusting handle 5 to drive the edge sealing wheel 31 on the left side of the swing arm 6 to slide along the outer periphery of the can cover to perform a curling process on the outer edge of the can cover.

[0051] S6: The user unlocks the lock 9, and the swing arm 6 is in a free state. The user pushes the swing arm 6 to rotate counterclockwise. At this time, the edge sealing wheel 31 on the right side of the swing arm 6 is close to the can cover. Then the user locks the rotation state of the swing arm 6 through the lock 9.

[0052] S7: The user holds the pressing handle 100 with one hand and the adjusting handle 5 with the other hand. The user presses the pressing handle 100 to press the pressure head 1 so that the can cover and the can body are in a compressed state. The user rotates the adjusting handle 5 to drive the edge sealing wheel 31 on the right side of the swing arm 6 to roll along the outer periphery of the can cover, so that the curled edge of the can cover and the top extension of the can body are engaged, thereby completing the sealing of the can cover and the can body.

[0053] In this embodiment, the shortest rolling distance 200 between the edge banding wheel 31 on the left side of the swing arm 6 and the pressure head 1 is 3 mm, which facilitates the edge banding wheel 31 on the left side of the swing arm 6 to curl the can cover.

[0054] In this embodiment, there is no minimum rolling distance 200 between the edge banding wheel 31 on the right side of the swing arm 6 and the pressure head 1, or the minimum rolling distance 200 is less than 0.1 mm, which makes it easy for the edge banding wheel 31 on the right side of the swing arm 6 to roll the can cover so that the curled edge of the can cover and the top extension of the can body are engaged.

Claims

1. A portable manual can sealing device, comprising a pressure head for pressing down the can cover, a mounting frame, a swing arm, an edge sealing wheel assembly, a fine adjustment assembly and an adjustment handle, characterized in that: The pressure head is rotatably arranged on the mounting frame; The swing arm is movably arranged on the mounting frame, the edge banding wheel assembly comprises an edge banding wheel and a connecting shaft, the upper section of the connecting shaft is connected to the swing arm, the lower section of the connecting shaft is connected to the edge banding wheel, and the edge banding wheel rotates with the lower section of the connecting shaft as the rotation center; The adjusting handle is connected to the swing arm, and the adjusting handle drives the swing arm to move on the mounting frame, thereby adjusting the distance between the edge banding wheel and the pressure head; The fine-tuning assembly is arranged on the mounting frame, and the fine-tuning assembly limits the rotation angle of the swing arm, thereby adjusting the shortest rolling distance between the edge banding wheel and the pressure head; A lock for locking or releasing the rotation state of the swing arm is arranged between the swing arm and the mounting frame.

2. The portable manual can sealing device according to claim 1, characterized in that: The center of the swing arm is movably arranged on the mounting frame, and the edge banding wheel assemblies are respectively arranged at both ends of the swing arm.

3. The portable manual can sealing device according to claim 1 or 2, characterized in that: It also includes a bearing and a pressing handle. The mounting frame is provided with a bearing mounting opening near its end, the bearing is arranged in the bearing mounting opening, the pressure head is provided with a connecting rod, the connecting rod and the inner ring of the bearing are fixedly connected, the pressing handle is located on the surface of the mounting frame, the end of the connecting rod extends out of the bearing and is connected to the pressing handle, the pressing handle drives the pressure head to rotate through the connecting rod, and the mounting frame rotates with the connecting rod as the rotation center.

4. The portable manual can sealing device according to claim 1 or 2, characterized in that: It also includes a slider, the mounting frame has a first slide groove along its length direction, the slider is placed in the first slide groove, the upper end of the slider extends out of the mounting frame to connect to the swing arm, the lower end of the slider extends out of the mounting frame to connect to the adjustment handle, the adjustment handle drives the swing arm to slide along the length direction of the mounting frame through the slider, the first slide groove limits the sliding distance of the slider, thereby limiting the sliding distance of the swing arm.

5. The portable manual can sealing device according to claim 4, characterized in that: The bottom surface of the mounting frame is provided with a lower extension plate, the lower extension plate is provided with a threaded hole, the adjustment handle comprises a threaded rod and a gripping handle, the threaded rod passes through the threaded hole, one end of the threaded rod is connected to the lower end of the slider, and the other end of the threaded rod is connected to the gripping handle.

6. The portable manual can sealing device according to claim 1 or 2, characterized in that: The mounting frame is provided with a second sliding groove and a third sliding groove parallel to each other along its length direction, the swing arm is provided with a left plug hole at a position corresponding to the second sliding groove, and the swing arm is provided with a right plug hole at a position corresponding to the third sliding groove; When the swing arm rotates clockwise, the right insertion hole is aligned with the third slide slot, a locking member passes through the right insertion hole and enters the third slide slot, and the other locking member passes through the left insertion hole and abuts against the side wall of the mounting frame, and the two locking members jointly lock the rotation angle of the swing arm; When the swing arm rotates counterclockwise, the left insertion hole is aligned with the second slide slot, a locking piece passes through the left insertion hole and enters the second slide slot, and the other locking piece passes through the right insertion hole and abuts against the side wall of the mounting frame, and the two locking pieces jointly lock the rotation angle of the swing arm.

7. The portable manual can sealing device according to claim 1 or 2, characterized in that: It also includes a locking bolt. The upper end of the slider is connected to the center of the swing arm. The swing arm has a mounting opening near its end. The end of the swing arm has a transverse screw hole connected to the mounting opening. The upper section of the connecting shaft is inserted into the mounting opening. The locking bolt passes through the transverse screw hole into the mounting opening and presses the connecting shaft, thereby locking the connecting shaft.

8. The portable manual can sealing device according to claim 7, characterized in that: The upper section of the connecting shaft and the lower section of the connecting shaft are misaligned to form an eccentric edge banding wheel assembly.

9. The portable manual can sealing device according to claim 1 or 2, characterized in that: The fine-tuning assembly includes an upper extension plate and a fine-tuning bolt. The upper extension plate is arranged on the surface of the mounting frame. The upper extension plate is provided with a fine-tuning screw hole. The fine-tuning bolt is arranged at the fine-tuning screw hole. The tail end of the fine-tuning bolt extends toward the swing arm. The fine-tuning bolt limits the rotation angle of the swing arm.

10. A manual can sealing method using the portable manual can sealing device as claimed in claim 1 or 2, characterized in that: The following steps are included: S1: The user drives the swing arm to move on the mounting frame by adjusting the handle to adjust the distance between the edge banding wheel and the pressure head to meet the sealing requirements of cans with different diameters; S2: The user adjusts the fine-tuning component, which limits the rotation angle of the swing arm and adjusts the closest rolling distance between the edge banding wheel and the pressure head; S3: The user assembles the can cover and the can body into an unsealed can state and places it on a flat surface, and then extends the pressure head into the concave cavity of the can cover; S4: The user pushes the swing arm to rotate clockwise until the swing arm rests against the fine-tuning assembly, and the edge banding wheel and the pressure head form the shortest rolling distance. At the same time, the edge banding wheel on the left side of the swing arm is close to the can cover. Then the user locks the rotation state of the swing arm through the lock. S5: The user presses the pressure head with one hand and holds the adjustment handle with the other hand. The user presses down the pressure head to make the can cover and the can body in a compacted state. The user rotates the adjustment handle to drive the edge sealing wheel on the left side of the swing arm to slide along the outer periphery of the can cover to perform the curling process on the outer edge of the can cover. S6: The user unlocks the lock, the swing arm is in a free state, and the user pushes the swing arm to rotate counterclockwise. At this time, the edge sealing wheel on the right side of the swing arm is close to the can cover, and then the user locks the rotation state of the swing arm through the lock; S7: The user presses the pressure head with one hand and holds the adjustment handle with the other hand. The user presses down the pressure head to put the can cover and the can body in a compressed state. The user rotates the adjustment handle to drive the edge sealing wheel on the right side of the swing arm to roll along the outer circumference of the can cover, so that the curled edge of the can cover and the top extension of the can body are engaged, completing the sealing of the can cover and the can body.

Images