A metal can lid bag-in-container sealing device

Abstract

The utility model discloses a kind of metal can cover bag-in sealing devices, it includes: push cover bag-in component, the right front of push cover bag-in component is equipped with cover track, the rear side coaxial of cover track is equipped with material receiving track component, bag opening component is arranged between the material receiving track component and cover track, the middle front section of material receiving track component is equipped with circular track gap, transition swing component is slidably fitted in the circular track gap, the right side of the upper side of transition swing component is equipped with up-down bag cutting component, the rear of the upper side of transition swing component is equipped with lower bag mouth component, rear bagging buffer component is fixedly assembled in the upper side of the rear end of material receiving track component, cancel traditional large amount of manual operation step, bagging and sealing are cooperated using each automatic component, improve the batch packaging efficiency in can cover manufacturing process, and then improve the overall production benefit.

Description

Technical Field

[0001] This utility model relates to the field of automated product packaging technology in the manufacturing process of metal can lids, and in particular to a metal can lid bag sealing device. Background Technology

[0002] In recent years, the three-piece can industry has shown a steady growth trend. Three-piece cans are widely used in functional beverages, food, chemicals, and other fields. A three-piece can consists of three parts: the can body, the can bottom, and the can lid. The can lid is an indispensable part of the production process in various industries. With the increasing demand from beverage, food, and chemical industries, improving the production efficiency of traditional can lids is an effective way for can lid manufacturers to increase product capacity.

[0003] Because the manual bagging and sealing of metal can lids requires a large amount of manpower and involves a significant amount of repetitive work, this process is suitable for automation to improve production efficiency. The equipment developed in this patent is suitable for the automatic bagging of metal can lids. Utility Model Content

[0004] The purpose of this utility model is to provide a metal can lid bag sealing device that uses automated loading and unloading bag sealing operations to improve production efficiency. During the bag sealing process, the metal can lids can be counted, which facilitates the reduction of manual labor in the next process of baking, heating, cooling and packaging, thereby improving production efficiency and increasing production benefits.

[0005] To achieve the above objectives, a metal can lid bag sealing device is provided, comprising: a lid-pushing bag assembly; a lid-feeding track is mounted on the front right side of the lid-pushing bag assembly; a receiving track assembly is coaxially mounted on the rear side of the lid-feeding track; a bag-opening assembly is provided between the receiving track assembly and the lid-feeding track; a circular track notch is provided in the front middle section of the receiving track assembly; a transition swing assembly is slidably fitted within the circular track notch; an upper and lower bag-cutting assembly is mounted on the right side directly above the transition swing assembly; a lower bag-top assembly is mounted directly behind the transition swing assembly; and a rear bag-top buffer assembly is fixedly mounted above the rear end of the receiving track assembly. This device eliminates a large number of traditional manual operation steps, utilizes the cooperation of various automated components for bag filling and sealing, improves the batch packaging efficiency in the can lid manufacturing process, and thus improves the overall production efficiency.

[0006] According to the aforementioned metal can lid bag sealing device, the lid-pushing bag assembly comprises a lid-pushing swing cylinder, a lid-pushing swing flip hinge, a lid-pushing assembly slider base, a lid-pushing drive rodless cylinder, a rodless cylinder mounting base, a lid-pushing swing connecting rod, and a lid-pushing rod. The rodless cylinder mounting base has two units, symmetrically fixed to the lower sides of the front and rear ends of the lid-pushing drive rodless cylinder. The lid-pushing assembly slider base is slidably mounted on the top of the lid-pushing drive rodless cylinder. The lid-pushing swing flip hinge is fixedly mounted on the top right side of the lid-pushing assembly slider base. The lid-pushing swing flip hinge is rotatably connected to the lid-pushing swing connecting rod. The lid-pushing rod is fixedly mounted on the right end of the lid-pushing swing connecting rod and horizontally mounted in the front-rear direction. The bottom output end of the lid-pushing swing cylinder is rotatably engaged with the left end of the lid-pushing swing connecting rod. The top end of the lid-pushing swing cylinder is rotatably engaged with a hinge and fixedly connected to the lid-pushing assembly slider base to the right.

[0007] According to the aforementioned metal can cap sealing device, the cap feeding track is composed of a high-speed counter, a semi-circular track, a silicone pressure plate, a track support, and a material receiving sensor. The track support is fixedly mounted at equal intervals at the bottom of the semi-circular track. The silicone pressure plate is symmetrically mounted on the top left and right sides of the semi-circular track. The high-speed counter is fixedly mounted at the upper left front end of the semi-circular track. The material receiving sensor is fitted into the bottom rear side of the semi-circular track. When the cap pushing rod pushes the material, it descends to the inner center position of the semi-circular track through the cap pushing swing linkage and performs a linear pushing motion in the front and back direction.

[0008] According to the aforementioned metal can lid bag sealing device, the receiving track assembly is composed of a receiving track plate, a front receiving guide rail round steel, and a rear receiving guide rail round steel. The front receiving guide rail round steel and the rear receiving guide rail round steel are respectively arranged on the front and rear sides of the circular track notch and are fixed downwards to the receiving track plate. The receiving track plate and the top of the opposite side of the semi-circular track are horizontally aligned.

[0009] According to the aforementioned metal can lid bag sealing device, the bag opening assembly comprises an upper bag opening tensioning cylinder, an upper bag opening arc plate, a lower bag opening pressing cylinder, a lower bag opening arc plate, and a lower bag opening pressing block. A mounting plate is fixedly connected to the front side of the lower bag opening pressing cylinder. A hinge is rotatably connected to the top of the upper bag opening tensioning cylinder and fixed rearward to the mounting plate. The bottom output end of the upper bag opening tensioning cylinder is fitted and rotatably engaged with the upper bag opening arc plate. The upper bag opening arc plate is correspondingly positioned on the mounting plate. The lower support arched plate is located directly below the upper arched plate and is rotatably connected to it via a hinge. Its bottom front side is coaxially fitted with the semi-circular track. A rectangular frame is fixedly connected to the outer front end of the lower support arched plate. The upper end of the rectangular frame is fixedly connected to the lower front side of the mounting plate. The lower bag opening pressing block is located directly below the lower support arched plate and is fixedly connected to U-shaped connecting plates at its left and right ends. The top of the U-shaped connecting plate is fixed to the output end of the lower bag opening pressing cylinder.

[0010] According to the aforementioned metal can lid bag sealing device, the transition swing assembly is composed of a transition connecting block, a connecting block swing rod, and a transition swing cylinder. The transition connecting block slides within the circular track notch of the receiving track plate. The connecting block swing rod is located at the bottom of the transition connecting block, with its right side section rotatably engaged with the output end of the transition swing cylinder. Both the bottom ends of the transition swing cylinder and the connecting block swing rod are rotatably engaged with hinge seats.

[0011] According to the aforementioned metal can lid bag sealing device, the upper and lower bag cutting assembly is composed of upper and lower bag cutting cylinders, upper and lower bag cutting roller assembly, and left and right extension cylinders. The right side of the upper and lower bag cutting cylinder is fixed to the left output end of the left and right extension cylinders, the top of the upper and lower bag cutting roller assembly is fixed to the bottom output end of the upper and lower bag cutting cylinder, and the bottom roller of the upper and lower bag cutting roller assembly is located above the circular track notch.

[0012] According to the aforementioned metal can lid bag sealing device, the lower top bag opening assembly consists of a lower top bag piece and a lower top bag cylinder. The bottom of the lower top bag piece is fixed to the top output end of the lower top bag cylinder. The lower top bag piece has an L-shaped bending design, and its front top extends into the circular track notch and slides up and down with the material receiving track plate.

[0013] According to the aforementioned metal can lid bag sealing device, the rear top bag buffer assembly is composed of a rear top bag block, a rear top bag cylinder assembly, and a rear top bag base. The front side of the rear top bag base is fixed to the receiving track plate, the rear top bag cylinder assembly is fixedly mounted on the top of the rear top bag base, and the rear side of the rear top bag block is fixed to the front output end of the rear top bag cylinder assembly.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] In this invention, a large number of traditional manual operation steps are eliminated. By utilizing various automated components to cooperate in bagging and sealing, the efficiency of batch packaging in the can lid manufacturing process is improved, thereby increasing the overall production efficiency.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the overall assembly of a metal can lid bag sealing device according to the present invention.

[0019] Figure 2 This is a front view of a metal can lid bag sealing device according to the present invention;

[0020] Figure 3 This is a top view of a metal can lid bag sealing device according to the present invention;

[0021] Figure 4 This is a schematic diagram of the connection structure of the push-cap bag-insertion assembly in a metal can lid bag-sealing device of this utility model.

[0022] Figure 5 This is a schematic diagram of the connection structure of the lid feeding track in a metal can lid bag sealing device of this utility model;

[0023] Figure 6 This is a schematic diagram of the connection structure of the bag opening component in a metal can lid bag sealing device of this utility model;

[0024] Figure 7 This is a schematic diagram of the connection structure of the upper and lower bag cutting components in a metal can lid bag sealing device of this utility model;

[0025] Figure 8 This is a schematic diagram of the connection structure of the transition swing component in a metal can lid bag sealing device of this utility model;

[0026] Figure 9 This is a schematic diagram of the connection structure of the lower top bag opening assembly in a metal can lid bag sealing device of this utility model;

[0027] Figure 10 This is a schematic diagram of the connection structure of the receiving track assembly in a metal can lid bag sealing device of this utility model.

[0028] Figure 11 This is a schematic diagram of the connection structure of the rear top bag buffer assembly in a metal can lid bag sealing device of this utility model.

[0029] Legend:

[0030] 1. Push-cap bag insertion assembly; 2. Cap feeding track; 3. Bag opening assembly; 4. Upper and lower bag cutting assembly; 5. Transition swing assembly; 6. Lower top bag opening assembly; 7. Material receiving track assembly; 8. Rear top bag buffer assembly;

[0031] 101. Push-cover swing cylinder; 102. Push-cover swing flip hinge; 103. Push-cover assembly slider base; 104. Push-cover drive rodless cylinder; 105. Rodless cylinder mounting base; 106. Push-cover swing linkage; 107. Push-cover rod;

[0032] 201. High-speed counter; 202. Semicircular track; 203. Silicone pressure plate; 204. Track support; 205. Material receiving sensor;

[0033] 301. Upper bag opening tensioning cylinder; 302. Upper bag opening arc plate; 303. Lower bag opening pressing cylinder; 304. Lower bag opening arc plate; 305. Lower bag opening pressing block;

[0034] 401. Upper and lower bag-cutting cylinders; 402. Upper and lower bag-cutting roller assembly; 403. Left and right extension cylinders;

[0035] 501. Transition connecting block; 502. Connecting block swing rod; 503. Transition swing cylinder;

[0036] 601. Bottom bag piece; 602. Bottom bag cylinder;

[0037] 701. Receiving track plate; 702. Front guide rail round steel; 703. Rear guide rail round steel;

[0038] 801. Rear top bag block; 802. Rear top bag cylinder assembly; 803. Rear top bag base. Detailed Implementation

[0039] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0040] Reference Figure 1-3This utility model provides a metal can lid bag sealing device, characterized in that it includes: a lid pushing and bagging assembly 1, a lid feeding track 2 mounted on the front right side of the lid pushing and bagging assembly 1, a receiving track assembly 7 coaxially mounted on the rear side of the lid feeding track 2, a bag opening assembly 3 between the receiving track assembly 7 and the lid feeding track 2, a circular track notch opened in the middle front section of the receiving track assembly 7, a transition swing assembly 5 slidably fitted in the circular track notch, an upper and lower bag cutting assembly 4 mounted on the right side directly above the transition swing assembly 5, a lower top bag opening assembly 6 mounted directly behind the transition swing assembly 5, and a rear top bag buffer assembly 8 fixedly mounted on the upper rear end of the receiving track assembly 7. By utilizing the cooperation of various automated components to bag and seal, the batch packaging efficiency in the can lid manufacturing process is improved.

[0041] Reference Figure 4 The push-cap bag insertion assembly 1 is composed of a push-cap swing cylinder 101, a push-cap swing flip hinge 102, a push-cap assembly slider base 103, a push-cap drive rodless cylinder 104, a rodless cylinder mounting base 105, a push-cap swing connecting rod 106, and a push-cap rod 107. Two rodless cylinder mounting bases 105 are symmetrically fixed to the lower sides of the front and rear ends of the push-cap drive rodless cylinder 104. The push-cap assembly slider base 103 is slidably mounted on the top of the push-cap drive rodless cylinder 104. The push-cap swing flip hinge 102 is fixedly mounted on the top right side of the push-cap assembly slider base 103. The swing hinge 102 is rotatably connected to the push-cap swing linkage 106. The push-cap rod 107 is fixedly installed on the right end of the push-cap swing linkage 106 and is horizontally mounted in the front-back direction. The bottom output end of the push-cap swing cylinder 101 is rotatably connected to the left end of the push-cap swing linkage 106. The top end of the push-cap swing cylinder 101 is fitted with a hinge and is fixedly connected to the push-cap assembly slider base 103 to the right. In the push-cap bag assembly 1, the push-cap swing cylinder 101 drives the push-cap swing linkage 106 through the push-cap swing hinge 102 to realize the swing action of the push-cap rod 107. After the push-cap rod 107 swings downward, it is sent to the next process by the push-cap driven rodless cylinder 104.

[0042] Reference Figure 5The cap feeding track 2 is composed of a high-speed counter 201, a semi-circular track 202, a silicone pressure plate 203, a track support 204, and a material receiving sensor 205. The track support 204 is fixedly mounted at the bottom of the semi-circular track 202 at equal distances. The silicone pressure plate 203 is symmetrically mounted on the top left and right sides of the semi-circular track 202. The high-speed counter 201 is fixedly mounted on the upper left front end of the semi-circular track 202. The material receiving sensor 205 is fitted into the middle and rear side of the bottom of the semi-circular track 202. When the cap pushing rod 107 pushes the material, it descends to the inner center of the semi-circular track 202 through the cap pushing swing connecting rod 106 and performs a linear pushing motion in the front and back direction. The high-speed counter 201 in the cap feeding track 2 counts the number of can caps. The silicone pressure plate 203 is used to increase some damping to prevent the cap from tipping over during the cap feeding process. The material receiving sensor 205 is used to determine whether the cap strip is in the push-in bag waiting position.

[0043] Reference Figure 10 The receiving track assembly 7 is composed of a receiving track plate 701, a front receiving guide rail round steel 702, and a rear receiving guide rail round steel 703. The front receiving guide rail round steel 702 and the rear receiving guide rail round steel 703 are respectively set on the front and rear sides of the circular track notch and are fixed downward to the receiving track plate 701. The receiving track plate 701 and the top of the opposite side of the semi-circular track 202 are horizontally aligned to limit the can lid after it is put into the bag and prevent the can lid from running off course when it is put into the bag.

[0044] Reference Figure 6 The bag opening assembly 3 is composed of an upper bag opening tensioning cylinder 301, an upper bag opening arc plate 302, a lower bag opening pressing cylinder 303, a lower bag opening arc plate 304, and a lower bag opening pressing block 305. The lower bag opening pressing cylinder 303 has a mounting plate fixedly connected to its front side. The top of the upper bag opening tensioning cylinder 301 is rotatably connected to a hinge and fixed to the mounting plate. The bottom output end of the upper bag opening tensioning cylinder 301 is fitted and rotatably fitted with the upper bag opening arc plate 302. The upper bag opening arc plate 302 is correspondingly located below the mounting plate and rotates with it via a hinge. The lower support arched plate 304 is located directly below the upper arched plate 302, and its bottom front side is coaxially attached to the semi-circular track 202. A rectangular frame is fixedly connected to the outer front end of the lower support arched plate 304. The upper end of the rectangular frame is fixedly connected to the lower front side of the mounting plate. The lower bag opening pressing block 305 is located directly below the lower support arched plate 304, and U-shaped connecting plates are fixedly connected to its left and right ends. The top of the U-shaped connecting plate is fixed to the output end of the lower bag opening pressing cylinder 303. The opened paper bag is sent to the push-cover position for easy bag filling.

[0045] Reference Figure 8The transition swing assembly 5 is composed of a transition connecting block 501, a connecting block swing rod 502, and a transition swing cylinder 503. The transition connecting block 501 slides within the circular track notch of the receiving track plate 701. The connecting block swing rod 502 is located at the bottom of the transition connecting block 501, and its right side section is rotatably engaged with the output end of the transition swing cylinder 503. The bottom ends of both the transition swing cylinder 503 and the connecting block swing rod 502 are rotatably engaged with hinge seats to fill the circular track notch on the receiving track plate 701 when the lid is pushed or the cover strip is folded back, thus preventing the lid from tipping over.

[0046] Reference Figure 7 The upper and lower bag cutting assembly 4 is composed of an upper and lower bag cutting cylinder 401, an upper and lower bag cutting roller assembly 402, and a left and right extension cylinder 403. The right side of the upper and lower bag cutting cylinder 401 is fixed to the left output end of the left and right extension cylinder 403. The top of the upper and lower bag cutting roller assembly 402 is fixed to the bottom output end of the upper and lower bag cutting cylinder 401. The bottom roller of the upper and lower bag cutting roller assembly 402 is located above the circular track notch, sealing the upper and lower ends of the capped paper bag.

[0047] Reference Figure 9 The lower top bag opening assembly 6 consists of a lower top bag piece 601 and a lower top bag cylinder 602. The bottom of the lower top bag piece 601 is fixed to the top output end of the lower top bag cylinder 602. The lower top bag piece 601 has an L-shaped bending design, and its front top extends into the circular track notch and slides up and down with the material receiving track plate 701 to prevent the front end of the cover strip from tilting when the push cover rod 107 retracts, while pushing the lower part of the bag opening upward to facilitate bag cutting.

[0048] Reference Figure 11 The rear top bag buffer assembly 8 consists of a rear top bag block 801, a rear top bag cylinder assembly 802, and a rear top bag base 803. The front side of the rear top bag base 803 is fixed to the receiving track plate 701. The rear top bag cylinder assembly 802 is fixedly mounted on top of the rear top bag base 803. The rear side of the rear top bag block 801 is fixed to the front output end of the rear top bag cylinder assembly 802. When the can lid is not inserted into the bag, the cylinder extends and is set to an unloading state through the pneumatic control system. When the can lid is inserted into the bag, pressure is applied to the rear end of the cylinder on the rear top bag block 801, resulting in exhaust and partial damping, thus achieving buffering at the rear of the lid push. After the lid is pushed, the rear top bag cylinder extends and pushes the cut-off cap strip forward to seal the bag opening below the cap strip.

[0049] Working principle: In this utility model, the can lid push-in bag assembly 1 pushes the can lid into the paper bag opened by the bag opening assembly 3, so that the tail of the can lid contacts the rear top bag buffer assembly 8, and the can lid strip is pressed tightly after being buffered.

[0050] The lower top bag assembly extends upwards, and the lower top bag piece 601 blocks the can lid. Then the lid push rod 107 retracts, completing the limiting.

[0051] The upper bag cutting assembly folds the bag downwards and resets, while the rear top bag buffer assembly 8 extends from the cylinder to push the can lid strip forward to complete the sealing action.

[0052] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Furthermore, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] 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 metal can lid bag sealing device, characterized in that, include: A push-cap bag insertion assembly (1) is provided with a cap feeding track (2) on the front right side of the push-cap bag insertion assembly (1). A receiving track assembly (7) is coaxially mounted on the rear side of the cap feeding track (2). A bag opening assembly (3) is provided between the receiving track assembly (7) and the cap feeding track (2). A circular track notch is provided in the middle front section of the receiving track assembly (7). A transition swing assembly (5) is slidably fitted in the circular track notch. An upper and lower bag cutting assembly (4) is mounted on the right side directly above the transition swing assembly (5). A lower top bag opening assembly (6) is mounted directly behind the transition swing assembly (5). A rear top bag buffer assembly (8) is fixedly mounted on the upper rear end of the receiving track assembly (7).

2. The metal can lid bag sealing device according to claim 1, characterized in that, The push-cap bag insertion assembly (1) is composed of a push-cap swing cylinder (101), a push-cap swing flip hinge (102), a push-cap assembly slider base (103), a push-cap drive rodless cylinder (104), a rodless cylinder mounting base (105), a push-cap swing connecting rod (106), and a push-cap rod (107). Two rodless cylinder mounting bases (105) are symmetrically fixed to the lower sides of the front and rear ends of the push-cap drive rodless cylinder (104). The push-cap assembly slider base (103) is slidably mounted on the top of the push-cap drive rodless cylinder (104). The push-cap swing flip... The hinge (102) is fixedly installed on the top right side of the push cover assembly slider base (103). The push cover swing flip hinge (102) is rotatably connected to the push cover swing linkage (106). The push cover rod (107) is fixedly installed on the right end of the push cover swing linkage (106) and is horizontally mounted in the front-back direction. The bottom output end of the push cover swing cylinder (101) is fitted and rotatably connected to the left end of the push cover swing linkage (106). The top end of the push cover swing cylinder (101) is fitted and rotatably fitted with a hinge and is fixedly connected to the push cover assembly slider base (103) to the right.

3. The metal can lid bag sealing device according to claim 2, characterized in that, The cover feeding track (2) is composed of a high-speed counter (201), a semi-circular track (202), a silicone pressure plate (203), a track support (204), and a material receiving sensor (205). The track support (204) is fixedly mounted at the bottom of the semi-circular track (202) at equal distances. The silicone pressure plate (203) is symmetrically mounted on the top left and right sides of the semi-circular track (202). The high-speed counter (201) is fixedly mounted on the upper left front end of the semi-circular track (202). The material receiving sensor (205) is fitted and mounted on the bottom rear side of the semi-circular track (202). When the cover pushing rod (107) pushes the material, it descends to the inner center position of the semi-circular track (202) through the cover pushing swing connecting rod (106) and performs a linear pushing motion in the front and back direction.

4. A metal can lid bag sealing device according to claim 3, characterized in that, The receiving track assembly (7) is composed of a receiving track plate (701), a front receiving guide rail round steel (702), and a rear receiving guide rail round steel (703). The front receiving guide rail round steel (702) and the rear receiving guide rail round steel (703) are respectively set on the front and rear sides of the circular track notch and fixed downward to the receiving track plate (701). The receiving track plate (701) and the top of the opposite side of the semi-circular track (202) are horizontally connected.

5. A metal can lid bag sealing device according to claim 3, characterized in that, The bag opening assembly (3) is composed of an upper bag opening tensioning cylinder (301), an upper bag opening arc plate (302), a lower bag opening pressing cylinder (303), a lower bag opening arc plate (304), and a lower bag opening pressing block (305). The lower bag opening pressing cylinder (303) has a mounting plate fixedly connected to its front side. The top of the upper bag opening tensioning cylinder (301) is rotatably connected to a hinge and fixed to the mounting plate. The bottom output end of the upper bag opening tensioning cylinder (301) is fitted and rotatably fitted with the upper bag opening arc plate (302). The upper bag opening arc plate (302) is correspondingly located on the mounting plate. The lower support arched plate (304) is located directly below the upper arched plate (302) and its bottom front side is coaxially attached to the semi-circular track (202). A rectangular frame is fixedly connected to the outer front end of the lower support arched plate (304). The upper end of the rectangular frame is fixedly connected to the lower front side of the mounting plate. The lower bag opening pressing block (305) is located directly below the lower support arched plate (304) and its left and right ends are fixedly connected to U-shaped connecting plates. The top of the U-shaped connecting plate is fixed to the output end of the lower bag opening pressing cylinder (303).

6. A metal can lid bag sealing device according to claim 4, characterized in that, The transition swing assembly (5) is composed of a transition connecting block (501), a connecting block swing rod (502), and a transition swing cylinder (503). The transition connecting block (501) is slidably limited within the circular track notch of the receiving track plate (701). The connecting block swing rod (502) is located at the bottom of the transition connecting block (501), and its right side section is rotatably engaged with the output end of the transition swing cylinder (503). The bottom ends of the transition swing cylinder (503) and the connecting block swing rod (502) are both rotatably engaged with hinge seats.

7. A metal can lid bag sealing device according to claim 1, characterized in that, The upper and lower bag cutting assembly (4) is composed of an upper and lower bag cutting cylinder (401), an upper and lower bag cutting roller assembly (402), and a left and right extension cylinder (403). The right side of the upper and lower bag cutting cylinder (401) is fixed to the left output end of the left and right extension cylinder (403). The top of the upper and lower bag cutting roller assembly (402) is fixed to the bottom output end of the upper and lower bag cutting cylinder (401). The bottom roller of the upper and lower bag cutting roller assembly (402) is located above the circular track notch.

8. A metal can lid bag sealing device according to claim 4, characterized in that, The lower top bag opening assembly (6) consists of a lower top bag piece (601) and a lower top bag cylinder (602). The bottom of the lower top bag piece (601) is fixed to the top output end of the lower top bag cylinder (602). The lower top bag piece (601) has an L-shaped bending design, and its front top extends into the circular track notch and slides up and down with the material receiving track plate (701).

9. A metal can lid bag sealing device according to claim 4, characterized in that, The rear top bag buffer assembly (8) is composed of a rear top bag block (801), a rear top bag cylinder assembly (802), and a rear top bag base (803). The front side of the rear top bag base (803) is fixed to the receiving track plate (701), the rear top bag cylinder assembly (802) is fixedly mounted on the top of the rear top bag base (803), and the rear side of the rear top bag block (801) is fixed to the front output end of the rear top bag cylinder assembly (802).

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