Sealing equipment applied to food cans and use method of sealing equipment

Abstract

The invention relates to the technical field of food can sealing, and discloses a sealing device applied to a food can and a using method thereof.The sealing device comprises two push columns movably connected to the outer side of the top of a first fixing column, one end of each push column is fixedly connected with an arc-shaped plate, and the other end of the top of each push column is fixedly connected with a first connecting column; one end of the first connecting column is fixedly connected with an arc-shaped limiting plate, and the top of the supporting column is fixedly connected with a placing plate; a supporting column moves in a groove, so that an arc-shaped plate is separated from the outer side of the supporting column, the initial state of a first telescopic spring is a compressed state, the first telescopic spring pushes a pushing column to move on the outer side of one end of a first fixing column, and the pushing column drives an arc-shaped limiting plate fixed to one end of a first connecting column to move; and the arc-shaped limiting plates abut against the outer sides of the canned bottles, so that the positions of the canned bottles are limited, and the situation that the positions of the canned bottles deviate in the packaging process, and consequently the sealing effect of cans is affected is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of canned food closing devices, and specifically relates to a closing device for food cans and a using method thereof. Background Art

[0002] A can is a method of packaging food. It can be canned beverages, including canned soft drinks, coffee, juice, frozen milk tea, beer, etc. It can also be canned food, including luncheon meat, and the packaging material is tinplate. The opening part still uses a can opener, or there is technology imitating pull-tab cans. The packaging material used is aluminum alloy. Nowadays, most of the opening methods are of the pull-tab type, which is convenient to use, and the airtightness of canned food is very important.

[0003] For traditional canned food closing devices, when closing the can lid, the can is only placed on the workbench of the closing device, and then the can lid is placed above the can, and then the can can be sealed. During the sealing process, the can may shift or shake, resulting in poor airtightness of the can and affecting the normal sealing of the can. Therefore, a closing device for food cans is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a closing device for food cans and a using method thereof, so as to solve the problem that in the traditional canned food closing device, when closing the can lid, the can is only placed on the workbench of the closing device, and then the can lid is placed above the can, and then the can can be sealed. During the sealing process, the can may shift or shake, resulting in poor airtightness of the can and affecting the normal sealing of the can as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A closing device for food cans, including a base, an installation seat is arranged above the base, a limiting mechanism is arranged on the top of the base, a pre-pressing mechanism is arranged on the installation seat, and a packaging mechanism is arranged on the pre-pressing mechanism;

[0006] The limiting mechanism includes a support column, two first fixing columns and two push columns. A groove is opened on the top of the base. The support column is movably connected to the inside of the groove. The two first fixing columns are both fixedly connected to the top of the base and are located on both sides of the groove. The two push columns are respectively movably connected to the outer sides of the tops of the first fixing columns. One ends of the two push columns are both fixedly connected with arc-shaped plates. The other ends of the tops of the two push columns are both fixedly connected with first connecting columns. One end of the first connecting column is fixedly connected with an arc-shaped limiting plate. The top of the support column is fixedly connected with a placement plate.

[0007] As a further preference of this technical solution: The preloading mechanism includes a fixed tube, a fixed plate and a limiting column. A first deep groove is formed at the top of the mounting seat. The fixed tube movably penetrates through the bottom of the first deep groove. The fixed plate is fixedly connected to the inner side of the first deep groove. The limiting column movably penetrates through the inside of the fixed tube. One end of the limiting column is movably connected to the bottom of the fixed plate. A second deep groove is formed at the bottom of the limiting column. A sliding column is movably inserted into the inside of the second deep groove. One end of the sliding column is fixedly connected to a limiting plate. A second telescopic spring is fixedly connected between the sliding column and one end of the bottom of the second deep groove.

[0008] As a further preference of this technical solution: The encapsulation mechanism includes a connecting frame, two second connecting columns and two encapsulation heads. The connecting frame is fixedly sleeved on the outer bottom end of the fixed tube. The two second connecting columns are respectively fixedly connected to both ends of the bottom of the connecting frame. The two encapsulation heads are respectively fixedly connected to the bottom ends of the two second connecting columns. A driven wheel is fixedly sleeved on the outer top end of the fixed tube.

[0009] As a further preference of this technical solution: A guiding column is fixedly connected to the top of the groove. The supporting column is movably sleeved on the outer side of the guiding column. A round hole is formed at the top of the supporting column. The guiding column is movably inserted into the inside of the round hole. A third telescopic spring is fixedly connected between the supporting column and the groove.

[0010] As a further preference of this technical solution: An arc-shaped inclined surface is provided on the inner side of the arc-shaped plate. The arc-shaped inclined surface abuts against the outer side of the supporting column.

[0011] As a further preference of this technical solution: A through groove is fixedly connected to the top of the push column. Sliding grooves are formed on both sides of the through groove. Sliding blocks are slidably connected to the inside of the sliding grooves. The first fixed column is fixedly connected between the two sliding blocks.

[0012] As a further preference of this technical solution: A motor is installed inside the first deep groove. The output shaft of the motor is fixedly connected to a driving wheel. The driving wheel and the driven wheel are connected by a belt.

[0013] As a further preference of this technical solution: An electric cylinder is installed on the top of the base. The push rod end of the electric cylinder is fixedly connected to a mounting seat. Guide rods are provided on both sides of the electric cylinder between the base and the mounting seat. One end of the guide rod is movably inserted into the inside of the mounting seat.

[0014] As a further preference of this technical solution: A second fixed column is fixedly connected to one side of the first fixed column on the top of the base. A first telescopic spring is fixedly connected between the second fixed column and the other end of the push column.

[0015] To achieve the above object, the present invention also provides the following technical solution: A method of using a closing device for food cans, according to the described closing device, the steps are as follows:

[0016] (1) When it is necessary to close the can lid, place the can body on the top of the placement plate, and then place the can lid above the can body;

[0017] (2) Control the motor to start through the switch group. The motor drives the driving wheel to rotate, and the driving wheel drives the driven wheel to rotate through the belt, thereby driving the fixed pipe to rotate;

[0018] (3) At this time, the encapsulation head fixed on the connecting frame rotates under the drive of the fixed pipe;

[0019] (4) Then control the push rod of the electric cylinder to reset through the switch group, thereby driving the mounting seat to move downward, so that the limit plate abuts against the top of the can lid, thereby pre-pressing and fixing the position of the can lid to prevent the position of the can lid from shifting during the processing;

[0020] (5) Then the limit plate pushes the can body to move downward, so that the support column moves inside the groove, and the arc plate disengages from the outside of the support column;

[0021] (6) Since the initial state of the first telescopic spring is a compressed state, at this time the first telescopic spring pushes the push column to move outside one end of the first fixed column, so that the push column drives the arc-shaped limit plate fixed at one end of the first connecting column to move, so that the arc-shaped limit plate abuts against the outside of the can body, thereby limiting the position of the can body to prevent its position from shifting during the encapsulation process;

[0022] (7) When the support column cannot move, at this time the sliding column moves inside the second deep groove, so that the encapsulation head approaches the outside of the can lid, thereby completing the sealing of the can;

[0023] (8) After the can is sealed, control the push rod of the electric cylinder to drive the mounting seat to move upward through the switch group, so that the limit column disengages from the top of the can lid, and then control the motor to stop running through the switch group, so that the encapsulation head stops rotating;

[0024] (9) At this time, the support column is reset under the action of the third telescopic spring force, thereby pushing the support column to move upward, so that the support column pushes the push column to move, thereby driving the arc-shaped limit plate to disengage from the outside of the can, that is, taking the can with the sealed can lid off the placement plate.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. In the present invention, the support column moves inside the groove, causing the arc-shaped plate to separate from the outer side of the support column. Since the initial state of the first telescopic spring is a compressed state, at this time, the first telescopic spring pushes the push column to move on the outer side of one end of the first fixed column, causing the push column to drive the arc-shaped limiting plate fixed to one end of the first connecting column to move, so that the arc-shaped limiting plate abuts against the outer side of the canned bottle, thereby limiting the position of the canned bottle and preventing its position from shifting during the encapsulation process, which may affect the sealing effect of the canned food.

[0027] 2. By resetting the push rod of the electric cylinder, the mounting seat is driven to move downward, causing the limiting plate to abut against the top of the canned lid, thereby pre-pressing and fixing the position of the canned lid to prevent its position from shifting during the processing; when the support column cannot move, at this time, the sliding column moves inside the second deep groove, causing the encapsulation head to approach the outer side of the canned lid, thereby completing the sealing of the canned lid. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a partial cross-sectional structural schematic diagram of the present invention;

[0030] Figure 2 It is a front view structural schematic diagram of the present invention;

[0031] Figure 3 It is a structural schematic diagram of the arc-shaped plate of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the push column of the present invention;

[0033] Figure 5 It is a structural schematic diagram of the limiting column of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the first fixed column of the present invention.

[0035] Description of reference numerals: 1, base; 2, electric cylinder; 3, guide rod; 4, mounting seat; 51, groove; 52, support column; 53, first fixing column; 54, push column; 55, arc plate; 56, first connecting column; 57, arc limiting plate; 58, second fixing column; 59, first telescopic spring; 510, placing plate; 61, first deep groove; 62, fixed pipe; 63, fixing plate; 64, limiting column; 65, second deep groove; 66, sliding column; 67, limiting plate; 68, second telescopic spring; 71, connecting frame; 72, second connecting column; 73, encapsulation head; 74, driven wheel; 8, guide column; 9, third telescopic spring; 10, arc inclined surface; 11, through groove; 12, chute; 13, slider; 14, motor; 15, driving wheel. Detailed implementation mode

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions that can be implemented in this application. Therefore, they do not have technical substance significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed in this application can cover.

[0038] Please refer to Figure 1-6 , the present invention provides a technical solution: a closing device applied to food cans, including a base 1, a mounting seat 4 is arranged above the base 1, a limiting mechanism is arranged on the top of the base 1, a pre-pressing mechanism is arranged on the mounting seat 4, an encapsulation mechanism is arranged on the pre-pressing mechanism, an electric cylinder 2 is installed on the top of the base 1, the push rod end of the electric cylinder 2 is fixedly connected with a mounting seat 4, guide rods 3 are arranged on both sides of the electric cylinder 2 between the base 1 and the mounting seat 4, and one end of the guide rod 3 is movably inserted into the inside of the mounting seat 4.

[0039] By setting a limiting mechanism to limit the position of the canned bottle and prevent its position from shifting during the encapsulation process, thus affecting the sealing effect of the can; the limiting mechanism includes a support column 52, two first fixed columns 53 and two push columns 54. A groove 51 is formed at the top of the base 1. The support column 52 is movably connected to the inside of the groove 51. The two first fixed columns 53 are both fixedly connected to the top of the base 1 and are located on both sides of the groove 51. The two push columns 54 are respectively movably connected to the outer sides of the tops of the first fixed columns 53. One end of each of the two push columns 54 is fixedly connected with an arc-shaped plate 55. The other ends of the tops of the two push columns 54 are both fixedly connected with a first connecting column 56. One end of the first connecting column 56 is fixedly connected with an arc-shaped limiting plate 57. The top of the support column 52 is fixedly connected with a placement plate 510. A second fixed column 58 is fixedly connected to the top of the base 1 on one side of the first fixed column 53. A first telescopic spring 59 is connected between the second fixed column 58 and the other end of the push column 54; by moving the support column 52 inside the groove 51, the arc-shaped plate 55 is disengaged from the outside of the support column 52. Since the initial state of the first telescopic spring 59 is a compressed state, at this time the first telescopic spring 59 pushes the push column 54 to move on the outer side of one end of the first fixed column 53, so that the push column 54 drives the arc-shaped limiting plate 57 fixed to one end of the first connecting column 56 to move, making the arc-shaped limiting plate 57 abut against the outside of the canned bottle, thereby limiting the position of the canned bottle.

[0040] By setting a preloading mechanism to prevent the position of the can lid from shifting during the processing. The preloading mechanism includes a fixed tube 62, a fixing plate 63 and a limiting column 64. A first deep groove 61 is formed at the top of the mounting seat 4. The fixed tube 62 movably penetrates the bottom of the first deep groove 61. The fixing plate 63 is fixedly connected to the inside of the first deep groove 61. The limiting column 64 movably penetrates the inside of the fixed tube 62. One end of the limiting column 64 is movably connected to the bottom of the fixing plate 63. A second deep groove 65 is formed at the bottom of the limiting column 64. A sliding column 66 is movably inserted into the inside of the second deep groove 65. One end of the sliding column 66 is fixedly connected with a limiting plate 67. A second telescopic spring 68 is connected between the sliding column 66 and one end of the bottom of the second deep groove 65; by the reset of the push rod of the electric cylinder 2, the mounting seat 4 is driven to move downward, so that the limiting plate 67 abuts against the top of the can lid, thereby preloading and fixing the position of the can lid. During the preloading of the can lid, the limiting plate 67 pushes the support column 52 to move inside the groove 51. When the support column 52 cannot move, at this time the second telescopic spring 68 is compressed by force, so that the sliding column 66 moves inside the second deep groove 65. This process is the preloading process, and the elastic force of the second telescopic spring 68 is greater than the elastic forces of the two third telescopic springs 9.

[0041] By setting up a packaging mechanism, the can lid is sealed, thus completing the processing of the can. The packaging mechanism includes a connecting frame 71, two second connecting columns 72 and two packaging heads 73. The connecting frame 71 is fixedly sleeved on the outer bottom end of the fixed pipe 62. The two second connecting columns 72 are respectively fixedly connected to both ends of the bottom of the connecting frame 71. The two packaging heads 73 are respectively fixedly connected to the bottom ends of the two second connecting columns 72. When the support column 52 cannot move, the sliding column 66 moves inside the second deep groove 65 at this time, making the packaging head 73 approach the outside of the can lid, thus completing the sealing of the can. A driven wheel 74 is fixedly sleeved on the outer top end of the fixed pipe 62. A motor 14 is installed inside the first deep groove 61. The output shaft of the motor 14 is fixedly connected to a driving wheel 15. The driving wheel 15 is connected to the driven wheel 74 by a belt. By controlling the motor 14 to start through the switch group, the driving wheel 15 is driven to rotate by the motor 14, so that the driving wheel 15 drives the driven wheel 74 to rotate through the belt, thereby driving the fixed pipe 62 to rotate. At this time, the packaging head 73 fixed on the connecting frame 71 rotates under the drive of the fixed pipe 62.

[0042] A guiding column 8 is fixedly connected to the top of the groove 51. The support column 52 is movably sleeved on the outer side of the guiding column 8. A round hole is opened at the top of the support column 52. The guiding column 8 is movably inserted into the inside of the round hole. The guiding column 8 plays a guiding role for the support column 52. A third telescopic spring 9 is fixedly connected between the support column 52 and the groove 51. By setting up the third telescopic spring 9, when the support column 52 is not stressed, it drives the support column 52 to move in a reset manner. An arc-shaped inclined surface 10 is arranged on the inner side of the arc-shaped plate 55. The arc-shaped inclined surface 10 abuts against the outer side of the support column 52. By setting up the arc-shaped inclined surface 10, when the support column 52 is reset, it can push the push column 54 to move to both sides, so that the arc-shaped limiting plate 57 disengages from the outside of the can bottle. A through groove 11 is fixedly connected to the top of the push column 54. Sliding grooves 12 are opened on both sides of the through groove 11. Sliding blocks 13 are slidably connected inside the sliding grooves 12. The first fixing column 53 is fixedly connected between the two sliding blocks 13. Through the arrangement of the sliding grooves 12 and the sliding blocks 13, the push column 54 can slide at the outer end of the first fixing column 53.

[0043] Based on the above technical solution, its working principle is as follows. When it is necessary to seal the can lid, place the can body on the top of the placement plate 510, and then place the can lid above the can body. Control the motor 14 to start through the switch group. Drive the driving wheel 15 to rotate through the motor 14, so that the driving wheel 15 drives the driven wheel 74 to rotate through the belt, thereby driving the fixed pipe 62 to rotate. At this time, the encapsulation head 73 fixed on the connecting frame 71 rotates driven by the fixed pipe 62. Then control the push rod of the electric cylinder 2 to reset through the switch group, thereby driving the mounting seat 4 to move downward, so that the limiting plate 67 abuts against the top of the can lid, thereby pre-pressing and fixing the position of the can lid to prevent the position of the can lid from shifting during the processing.

[0044] Push the can body downward through the limiting plate 67, so that the support column 52 moves inside the groove 51, and the arc-shaped plate 55 disengages from the outside of the support column 52. Since the initial state of the first telescopic spring 59 is a compressed state, at this time, the first telescopic spring 59 pushes the push column 54 to move outside one end of the first fixed column 53, so that the push column 54 drives the arc-shaped limiting plate 57 fixed at one end of the first connecting column 56 to move, so that the arc-shaped limiting plate 57 abuts against the outside of the can body, thereby limiting the position of the can body to prevent its position from shifting during the encapsulation process, thus affecting the sealing effect of the can. When the support column 52 cannot move, at this time, the sliding column 66 moves inside the second deep groove 65, so that the encapsulation head 73 approaches the outside of the can lid, thereby completing the sealing of the can.

[0045] After the can is sealed, control the push rod of the electric cylinder 2 to drive the mounting seat 4 to move upward through the switch group, so that the limiting column 64 disengages from the top of the can lid. Then control the motor 14 to stop running through the switch group, so that the encapsulation head 73 stops rotating. At this time, the support column 52 is reset under the action of the force of the third telescopic spring 9, thereby pushing the support column 52 to move upward, so that the support column 52 pushes the push column 54 to move, thereby driving the arc-shaped limiting plate 57 to disengage from the outside of the can, and the can with the sealed can lid can be removed from the placement plate 510.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A closing device applied to food cans, characterized in that: It includes a base (1), an installation base (4) is provided above the base (1), a limiting mechanism is provided at the top of the base (1), a preloading mechanism is provided on the installation base (4), and a packaging mechanism is provided on the preloading mechanism; The limiting mechanism includes a support column (52), two first fixing columns (53) and two pushing columns (54). A groove (51) is formed at the top of the base (1). The support column (52) is movably connected to the inside of the groove (51). The two first fixing columns (53) are both fixedly connected to the top of the base (1) and located on both sides of the groove (51). The two pushing columns (54) are respectively movably connected to the outer sides of the tops of the first fixing columns (53). One ends of the two pushing columns (54) are both fixedly connected with arc-shaped plates (55). The other ends of the tops of the two pushing columns (54) are both fixedly connected with first connecting columns (56). One end of the first connecting column (56) is fixedly connected with an arc-shaped limiting plate (57). A placement plate (510) is fixedly connected to the top of the support column (52); The preloading mechanism includes a fixed pipe (62), a fixing plate (63) and a limiting column (64). A first deep groove (61) is formed at the top of the installation base (4). The fixed pipe (62) movably penetrates the bottom of the first deep groove (61). The fixing plate (63) is fixedly connected to the inside of the first deep groove (61). The limiting column (64) movably penetrates the inside of the fixed pipe (62). One end of the limiting column (64) is movably connected to the bottom of the fixing plate (63). A second deep groove (65) is formed at the bottom of the limiting column (64). A sliding column (66) is movably inserted into the inside of the second deep groove (65). One end of the sliding column (66) is fixedly connected with a limiting plate (67). A second telescopic spring (68) is fixedly connected between the sliding column (66) and one end of the bottom of the second deep groove (65); The packaging mechanism includes a connecting frame (71), two second connecting columns (72) and two packaging heads (73). The connecting frame (71) is fixedly sleeved on the outer bottom end of the fixed pipe (62). The two second connecting columns (72) are respectively fixedly connected to both ends of the bottom of the connecting frame (71). The two packaging heads (73) are respectively fixedly connected to the bottom ends of the two second connecting columns (72). A driven wheel (74) is fixedly sleeved on the outer top end of the fixed pipe (62).

2. The sealing device for food cans according to claim 1, characterized in that: A guiding column (8) is fixedly connected to the top of the groove (51). The support column (52) is movably sleeved on the outer side of the guiding column (8). A round hole is formed at the top of the support column (52). The guiding column (8) is movably inserted into the inside of the round hole. A third telescopic spring (9) is fixedly connected between the support column (52) and the groove (51).

3. The closing device for food cans according to claim 1, characterized in that: An arc-shaped inclined surface (10) is provided on the inner side of the arc-shaped plate (55). The arc-shaped inclined surface (10) abuts against the outer side of the support column (52).

4. A closing device applied to food cans according to claim 1, characterized in that: The top of the push column (54) is fixedly connected with a through groove (11). Both sides of the through groove (11) are provided with sliding grooves (12). A slider (13) is slidably connected inside the sliding groove (12). The first fixed column (53) is fixedly connected between the two sliders (13).

5. A closing device applied to food cans according to claim 1, characterized in that: A motor (14) is installed inside the first deep groove (61). The output shaft of the motor (14) is fixedly connected with a driving wheel (15). The driving wheel (15) and the driven wheel (74) are connected by a belt.

6. The closing device for food cans according to claim 1, characterized in that: An electric cylinder (2) is installed on the top of the base (1). The push rod end of the electric cylinder (2) is fixedly connected with a mounting seat (4). Guide rods (3) are provided on both sides of the electric cylinder (2) between the base (1) and the mounting seat (4). One end of the guide rod (3) is movably inserted into the inside of the mounting seat (4).

7. A closing device applied to food cans according to claim 1, characterized in that: On one side of the first fixed column (53) on the top of the base (1), a second fixed column (58) is fixedly connected. A first telescopic spring (59) is fixedly connected between the second fixed column (58) and the other end of the push column (54).

8. A method of using a closing device for food cans, characterized in that: The closing device according to any one of claims 1-7, the steps are as follows: (1) When it is necessary to close the can lid, place the can body on the top of the placement plate, and then place the can lid above the can body; (2) Control the motor to start through the switch group. Drive the driving wheel to rotate through the motor, so that the driving wheel drives the driven wheel to rotate through the belt, thereby driving the fixed pipe to rotate; (3) At this time, the encapsulation head fixed on the connecting frame rotates under the drive of the fixed pipe; (4) Then control the push rod of the electric cylinder to reset through the switch group, thereby driving the mounting seat to move downward, so that the limiting plate abuts against the top of the can lid, thereby pre-pressing and fixing the position of the can lid to prevent the position of the can lid from shifting during the processing; (5) Then push the can bottle downward through the limiting plate, so that the support column moves inside the groove, and the arc-shaped plate disengages from the outside of the support column; (6) Since the initial state of the first telescopic spring is a compressed state, at this time the first telescopic spring pushes the push column to move outside one end of the first fixed column, so that the push column drives the arc-shaped limiting plate fixed at one end of the first connecting column to move, so that the arc-shaped limiting plate abuts against the outside of the can bottle, thereby limiting the position of the can bottle to prevent its position from shifting during the encapsulation process; (7) When the support column cannot move, at this time the sliding column moves inside the second deep groove, so that the encapsulation head approaches the outside of the can lid, thereby completing the sealing of the can; (8) After the can is sealed, control the push rod of the electric cylinder to drive the mounting seat to move upward through the switch group, so that the limiting column disengages from the top of the can lid, and then control the motor to stop running through the switch group, so that the encapsulation head stops rotating; (9) At this time, the support column is reset under the action of the third telescopic spring force, thereby pushing the support column to move upward, so that the support column pushes the push column to move, thereby driving the arc-shaped limiting plate to disengage from the outside of the can, that is, taking the can with the sealed can lid off the placement plate.

Images