Vacuum filling device for metal can packaging

Abstract

The utility model relates to a filling device, in particular to a vacuum filling device for metal can packaging. Comprising a support, a conveying belt, a box body, a top cover, a vacuum pipe, a vacuum branch pipe, a first air cylinder, a sealing box, a second air cylinder, a sliding plate, a capping device, a semicircular sealing cylinder and the like. A top cover is arranged on the top of the box body; a first air cylinder is mounted on the lower side of the top cover; an output shaft of the first air cylinder is connected with the top of the closed box; a second air cylinder is mounted on the upper side in the closed box, and an output shaft of the second air cylinder is connected with a sliding plate; the sliding plate is slidably connected with the closed box, a plurality of capping devices are arranged on the lower side of the sliding plate, and a plurality of semicircular sealing cylinders are slidably arranged on the lower side of the closed box. Through cooperation of the conveying belt, the servo motor, the rotating frame and other components, vacuum treatment and capping can be carried out on a plurality of metal cans at the same time, and the overall efficiency of a production line is improved.

Description

Technical Field

[0001] The utility model relates to a filling device, in particular to a vacuum filling device for metal can packaging. Background Art

[0002] In the food packaging industry, metal cans are common food storage containers, and vacuum sealing is an important part of the canning process. Through vacuum sealing, the air in the can can be removed as much as possible before sealing, reducing the pressure in the can during sterilization, preventing deformation, cracking, and bag bulging. At the same time, it prevents the growth and reproduction of aerobic microorganisms and reduces oxidation corrosion on the inner wall of the can. The vacuum sealing technology uses a vacuum pump to extract the air in the sealing chamber to form a certain degree of vacuum. When the can enters the sealing chamber of the canning machine, part of the air in the can is immediately extracted under vacuum conditions and then the can is sealed.

[0003] There are still some problems with the existing metal can sealing devices. Some devices can only seal metal cans one by one. For example, a can filling and sealing device with authorization announcement number CN205035064U includes: a can body, a frame, a control box is provided on the side of the frame, a feed hopper is opened at the upper end of the frame, an ultrasonic rangefinder is provided on the feed hopper, a rotating table is installed on the base of the frame, and a lifting mechanism 1 and a lifting mechanism 2 are provided on the rotating table.

[0004] Although the above patent can seal metal cans, it can only be done one by one and cannot achieve simultaneous processing of multiple metal cans, thus limiting the overall efficiency of the production line. Utility Model Content

[0005] In order to overcome the shortcoming that metal cans can only be sealed one by one, the technical problem of the utility model is to provide a vacuum filling device for metal can packaging.

[0006] Technical solution: A vacuum filling device for metal can packaging, including a bracket, a conveyor belt, a box body, a top cover, a vacuum tube, a vacuum branch pipe, a first cylinder, a closed box, a second cylinder, a sliding plate, a capping device, a semicircular sealing cylinder, a closing mechanism, a servo motor, a rotating frame and a vacuum air pump. The upper side of the bracket is provided with a conveyor belt, the upper side of the bracket is provided with a box body, the lower side of the box body is provided with an opening for metal cans to pass through, the top of the box body is provided with a top cover, the lower side of the top cover is installed with a first cylinder, the output shaft of the first cylinder is connected to the top of the closed box, the second cylinder is installed on the upper side of the closed box, the output shaft of the second cylinder is connected to the sliding plate, the sliding plate is slidably connected to the closed box, a plurality of capping devices are provided on the lower side of the sliding plate, and a plurality of capping devices are provided on the lower side of the closed box. A vacuum cylinder, each of which is composed of two semicircular sealing cylinders. The top of the semicircular sealing cylinder is slidably connected to the closed box. A closing mechanism is provided between the two adjacent semicircular sealing cylinders. The middle part of the box body is an inclined surface, and a slide groove is provided in the middle part of the inner wall of the box body. The closing mechanism is slidably connected to the slide groove. A vacuum tube is installed on the lower side of the top cover, and the vacuum tube is connected to a vacuum air pump. The vacuum air pump is installed on the outside of the box body. A plurality of vacuum branch pipes are provided on the lower side of the vacuum tube. The capping device passes through the lower part of the closed box and is located between the inner sides of the two semicircular sealing cylinders. The vacuum branch pipe passes through the closed box and the capping device. A servo motor is provided in the middle part of the lower side of the top cover. The output shaft of the servo motor is connected to a rotating frame. The side wall of the rotating frame is provided with a plurality of arc grooves matching the shape of metal cans.

[0007] In addition, it is particularly preferred that the closing mechanism includes a connecting block, a connecting rod and a pushing rod, the side wall of the semicircular sealing cylinder is provided with a connecting block, the connecting block is rotatably connected to the connecting rod, every two adjacent connecting rods are rotatably connected to one end of a pushing rod, and the pushing rod is slidably connected to the slide groove of the box body.

[0008] In addition, it is particularly preferred that it also includes an arc-shaped rack, a gear, a reduction motor, a baffle and a limit plate. The arc-shaped rack is slidably connected to the lower side of the box body, baffles are provided on both sides of the arc-shaped rack, a reduction motor is installed on the bracket, the output shaft of the reduction motor is connected to the gear, the gear is meshed with the arc-shaped rack, and a limit plate is provided on the lower side of the box body.

[0009] Furthermore, it is particularly preferred that the inner lower side of the semicircular sealing cylinder is provided with rubber.

[0010] In addition, it is particularly preferred that a guide plate is further included, and two guide plates are provided at the left opening of the box body.

[0011] In addition, it is particularly preferred that a soft layer protective layer is provided at the arc-shaped groove of the rotating frame.

[0012] The utility model has the following advantages: 1. Through the cooperation of the conveyor belt, servo motor and rotating frame and other components, the utility model can simultaneously perform vacuum processing and capping on multiple metal cans, thereby improving the overall efficiency of the production line and making the processing of metal cans faster. Through the design of the closing mechanism (including the connecting block, the connecting rod and the pushing rod), the semicircular sealing cylinder automatically closes into a vacuum cylinder to wrap the metal can when it descends, and automatically opens when it rises.

[0013] 2. The combination of arc-shaped racks, gears, baffles and limit plates ensures the stability of metal cans during transportation and rotation, making the processing process smoother. The rubber layer inside the semicircular sealing cylinder provides good sealing performance and also plays a role of buffering and protection, reducing the friction and damage between the metal cans and the semicircular sealing cylinder. The soft protective layer of the rotating frame also plays a role of buffering and protecting the metal cans. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model after removing the bracket, conveyor belt and box body.

[0016] Figure 3 It is an exploded view of part of the structure of the utility model.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the closing mechanism of the utility model.

[0018] Figure 5 It is a cross-sectional view of the box body of the utility model.

[0019] Figure 6 It is a cross-sectional view of the closed box and vacuum tube of the utility model.

[0020] Figure 7 It is a three-dimensional structural schematic diagram of the lower part of the closed box of the utility model.

[0021] Figure 8 It is a three-dimensional structural schematic diagram of the reduction motor, baffle plate and limit plate of the utility model.

[0022] Fig. 9 It is a three-dimensional structural schematic diagram of the arc-shaped rack, gears and reduction motor of the utility model.

[0023] Among them, the above-mentioned drawings include the following figure marks: 1. bracket, 2. conveyor belt, 3. box body, 31. slide groove, 4. top cover, 5. vacuum tube, 6. vacuum branch pipe, 7. first cylinder, 8. closing box, 9. second cylinder, 10. sliding plate, 11. capping device, 12. semicircular sealing cylinder, 13. closing mechanism, 131. connecting block, 132. connecting rod, 133. pushing rod, 14. servo motor, 15. rotating frame, 16. vacuum air pump, 17. arc rack, 18. gear, 19. reduction motor, 20. baffle, 21. guide plate, 22. limit plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0025] A vacuum filling device for metal can packaging, such as Figure 1-Figure 7As shown, it includes a bracket 1, a conveyor belt 2, a box body 3, a top cover 4, a vacuum tube 5, a vacuum branch pipe 6, a first cylinder 7, a closed box 8, a second cylinder 9, a sliding plate 10, a capping device 11, a semicircular sealing cylinder 12, a closing mechanism 13, a servo motor 14, a rotating frame 15 and a vacuum air pump 16. The upper side of the bracket 1 is provided with a conveyor belt 2, the upper side of the bracket 1 is provided with a box body 3, the left and right ends of the lower side of the box body 3 are provided with openings for metal cans to pass through, the top of the box body 3 is provided with a top cover 4, the lower side of the top cover 4 is provided with two first cylinders 7, the output shafts of the two first cylinders 7 are connected to the top of the closed box 8, two second cylinders 9 are installed on the upper side of the closed box 8, the output shafts of the two second cylinders 9 are connected to the sliding plate 10, the sliding plate 10 is slidably connected to the closed box 8, six capping devices 11 are provided on the lower side of the sliding plate 10, and a plurality of vacuum cylinders are provided on the lower side of the closed box 8, each vacuum cylinder is composed of two semicircular sealing cylinders 12, and the semicircular sealing cylinders 12 are each composed of two semicircular sealing cylinders 12. The top of 12 is slidably connected to the closed box 8, and a closing mechanism 13 is provided between the two semicircular sealing cylinders 12 adjacent to each vacuum cylinder. The middle part of the box body 3 is an inclined surface, and a slide groove 31 is provided in the middle of the inner wall of the box body 3. The closing mechanism 13 is slidably connected to the slide groove 31. A vacuum tube 5 is installed on the lower side of the top cover 4, and the vacuum tube 5 passes through the box body 3 and is connected to the vacuum air pump 16. The vacuum air pump 16 is installed on the outer side of the box body 3. Six vacuum branch pipes 6 are provided on the lower side of the vacuum tube 5, and the vacuum branch pipes 6 correspond to the center of the capping device 11. The capping device 11 passes through the lower part of the closed box 8 and is located between the inner sides of the two semicircular sealing cylinders 12. When the two semicircular sealing cylinders 12 are closed into a vacuum cylinder, the capping device 11 is close to the inner wall of the semicircular sealing cylinder 12, and the vacuum branch pipes 6 pass through the closed box 8 and the capping device 11. A servo motor 14 is provided in the middle part of the lower side of the top cover 4, and the output shaft of the servo motor 14 is connected to the rotating frame 15. The side wall of the rotating frame 15 is provided with a plurality of arc grooves matching the shape of the metal cans.

[0026] When in use, the conveyor belt 2 conveys the loaded and covered metal cans to the arc-shaped groove of the rotating rack 15, and the servo motor 14 drives the rotating rack 15 and the metal cans to rotate thirty degrees with the center of the box body 3 as the center of the circle. The operation is repeated five times. When the metal cans rotate, the box body 3 plays a role of limiting. When the sixth metal can touches the arc-shaped groove of the rotating rack 15, the first cylinder 7 is started, and the output shaft of the first cylinder 7 moves the closing box 8, the semicircular sealing cylinder 12 and the closing mechanism 13 downward. When the closing mechanism 13 slides to the inclined surface in the middle of the box body 3, the closing mechanism 13 will push the semicircular sealing cylinder 12 to close into a vacuum. The cylinder wraps the metal can. After the semicircular sealing cylinder 12 is completely closed, the vacuum air pump 16 starts to work, and the inside of the metal can is evacuated through the vacuum tube 5 and the vacuum branch pipe 6. Then the second cylinder 9 is started to push the sliding plate 10 and the capping device 11 to move downward to seal the metal can. After the sealing is completed, the first cylinder 7 drives the closing box 8, the semicircular sealing cylinder 12 and the closing mechanism 13 to return to their original positions. At this time, the semicircular sealing cylinder 12 will open under the action of the closing mechanism 13, and then the servo motor 14 drives the rotating frame 15 and the metal can to rotate, and cooperates with the conveyor belt 2 to transport the metal can to the next area.

[0027] like Figure 3 and Figure 4 As shown, the closing mechanism 13 includes a connecting block 131, a connecting rod 132 and a pushing rod 133. The side wall of the semicircular sealing cylinder 12 is provided with a connecting block 131, the connecting block 131 is rotatably connected to the connecting rod 132, and every two adjacent connecting rods 132 are rotatably connected to one end of a pushing rod 133, and the other end of the pushing rod 133 is spherical, and the pushing rod 133 is slidably connected to the slide groove 31 of the box body 3; when the first cylinder 7 drives the semicircular sealing cylinder 12 to descend, the connecting block 131, the connecting rod 132 and the pushing rod 133 are descended accordingly, and the pushing rod 133 is in the slide groove 31 of the box body 3 When the push rod 133 slides to the inclined surface inside the box body 3, the inclined surface of the box body 3 will squeeze the push rod 133 to move toward the center of the box body 3. Since the connecting rod 132 is rotatably connected to the connecting block 131 and the push rod 133 respectively, and the top of the semicircular sealing cylinder 12 is slidably connected to the closed box 8, the movement of the push rod 133 will cause the connecting rod 132 to push the semicircular sealing cylinder 12 to close into a vacuum cylinder and wrap the metal can. Similarly, when the first cylinder 7 drives the semicircular sealing cylinder 12 to rise, the push rod 133 will drive the semicircular sealing cylinder 12 to open under the action of the inclined surface of the box body 3.

[0028] like Figure 8 and Fig. 9As shown, it also includes an arc-shaped rack 17, a gear 18, a reduction motor 19, a baffle 20 and a limit plate 22. The front end of the lower side of the box body 3 is slidably connected with the arc-shaped rack 17. Baffles 20 are provided on the left and right sides of the arc-shaped rack 17. The size of the baffle 20 matches the box body opening. The reduction motor 19 is installed on the bracket 1. The output shaft of the reduction motor 19 is connected to the gear 18. The gear 18 is meshed with the arc-shaped rack 17. A limit plate 22 is provided on the lower side of the box body 3. The limit plate 22 wraps the arc-shaped rack 17 and the gear 18 inside; when the conveyor belt 2 transports the metal cans to the arc-shaped groove of the rotating frame 15, the right baffle 20 is located at the right opening of the box body 3 to block the metal cans. After the capping is completed, the reduction motor 19 drives the gear 18 to rotate, and the gear 18 drives the arc-shaped rack 17 to rotate with the center of the box body 3 as the center of the circle, and the arc-shaped rack 17 drives the baffle 20 to rotate, and the right baffle 20 no longer blocks the right opening of the box body 3, and the left baffle 20 blocks the left opening of the box body 3. At this time, the servo motor 14 drives the rotating frame 15 to rotate, and cooperates with the conveyor belt 2 to transport the metal cans to the next area. The limit plate 22 limits the arc-shaped rack 17 and the baffle 20 to prevent the arc-shaped rack 17 from deviating or over-rotating. At the same time, the limit plate 22 wraps the arc-shaped rack 17 and the gear 18 inside to protect the arc-shaped rack 17 and the gear 18 from being damaged by various external factors.

[0029] Rubber is provided on the lower inner side of the semicircular sealing cylinder 12, and the shape of the rubber matches the metal can; when the semicircular sealing cylinder 12 contacts the metal can, the rubber can fit tightly to the surface of the metal can to form an effective seal, and at the same time, it plays a buffering role when the semicircular sealing cylinder 12 contacts the metal can, reducing the noise and vibration caused by the direct collision between the metal can and the semicircular sealing cylinder 12, and protecting the surface of the metal can from damage.

[0030] like Figure 1 As shown, a guide plate 21 is also included. Two guide plates 21 are provided at the left opening of the box body 3. The two guide plates 21 are arranged in an eight-shaped shape. The guide plates 21 guide the metal cans, guiding the metal cans to move along a predetermined path so that the metal cans can smoothly enter the box body 3.

[0031] A soft protective layer is provided at the arc-shaped groove of the rotating frame 15; since the metal can is a hard object, direct contact with the rotating frame 15 may cause friction, noise and even damage during rotation, and the soft protective layer can reduce such friction and impact and protect the surface of the metal can from damage.

[0032] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art can make various modifications or changes to the above embodiments without departing from the utility model concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A vacuum filling device for metal can packaging, comprising a support (1), a conveyor belt (2), a box body (3) and a top cover (4), wherein the support (1) is provided with a conveyor belt (2) on the upper side, the support (1) is provided with a box body (3) on the upper side, the box body (3) is provided with an opening for the metal can to pass through on the lower side, and the top cover (4) is provided on the top of the box body (3), wherein: The invention also comprises a vacuum tube (5), a vacuum branch pipe (6), a first cylinder (7), a sealing box (8), a second cylinder (9), a sliding plate (10), a capping device (11), a semicircular sealing cylinder (12), a closing mechanism (13), a servo motor (14), a rotating frame (15) and a vacuum air pump (16). The first cylinder (7) is installed on the lower side of the top cover (4). The output shaft of the first cylinder (7) is connected to the top of the sealing box (8). The second cylinder (9) is installed on the upper side of the sealing box (8). The output shaft of the second cylinder (9) is connected to the sliding plate (10). The sliding plate (10) is slidably connected to the sealing box (8). A plurality of capping devices (11) are arranged on the lower side of the sliding plate (10). A plurality of vacuum cylinders are arranged on the lower side of the sealing box (8). Each vacuum cylinder is composed of two semicircular sealing cylinders (12). The top of the semicircular sealing cylinder (12) is slidably connected to the sealing box (8). A closing mechanism (13) is provided between two semicircular sealing cylinders (12) adjacent to each other of the vacuum cylinders. The middle of the box body (3) is an inclined surface. A slide groove (31) is provided in the middle of the inner wall of the box body (3). The closing mechanism (13) is slidably connected to the slide groove (31). A vacuum tube (5) is installed on the lower side of the top cover (4). The vacuum tube (5) is connected to a vacuum air pump (16). The vacuum air pump (16) is installed on the outer side of the box body (3). A plurality of vacuum branch pipes (6) are provided on the lower side of the vacuum tube (5). A capping device (11) passes through the lower part of the closed box (8) and is located between the inner sides of the two semicircular sealing cylinders (12). The vacuum branch pipes (6) pass through the closed box (8) and the capping device (11). A servo motor (14) is provided in the middle of the lower side of the top cover (4). The output shaft of the servo motor (14) is connected to a rotating frame (15). The side wall of the rotating frame (15) is provided with a plurality of arc grooves matching the shape of the metal can.

2. A vacuum filling device for metal can packaging according to claim 1, characterized in that: The closing mechanism (13) comprises a connecting block (131), a connecting rod (132) and a pushing rod (133). The side wall of the semicircular sealing cylinder (12) is provided with a connecting block (131). The connecting block (131) is rotatably connected to the connecting rod (132). Every two adjacent connecting rods (132) are rotatably connected to one end of a pushing rod (133). The pushing rod (133) is slidably connected to a slide groove (31) of the box body (3).

3. A vacuum filling device for metal can packaging according to claim 2, characterized in that: The invention also comprises an arc-shaped rack (17), a gear (18), a reduction motor (19), a baffle (20) and a limit plate (22); the lower side of the box body (3) is slidably connected with the arc-shaped rack (17); baffles (20) are provided on both sides of the arc-shaped rack (17); the reduction motor (19) is installed on the bracket (1); the output shaft of the reduction motor (19) is connected with the gear (18); the gear (18) is meshed with the arc-shaped rack (17); and the lower side of the box body (3) is provided with a limit plate (22).

4. A vacuum filling device for metal can packaging according to claim 3, characterized in that: The lower inner side of the semicircular sealing cylinder (12) is provided with rubber.

5. A vacuum filling device for metal can packaging according to claim 4, characterized in that: It also includes a guide plate (21), and two guide plates (21) are provided at the left opening of the box body (3).

6. A vacuum filling device for metal can packaging according to claim 5, characterized in that: A soft protective layer is provided at the arc-shaped groove of the rotating frame (15).

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