Vacuum packaging machine capable of improving sealing quality

Abstract

The utility model relates to the field of packaging equipment, and discloses a vacuum packaging machine capable of improving sealing quality, which comprises a primary vacuum sealing device, a vacuum cavity is arranged on the primary vacuum sealing device, and the primary vacuum sealing device drives a packaging bag filled with materials to convey and simultaneously performs primary sealing on the packaging bag in the vacuum cavity; the secondary sealing device is connected with one side of the primary vacuum sealing device in a conveying mode, and the secondary sealing device conducts smashing and secondary sealing treatment on the primary sealing position. The packaging machine further comprises a conveying mechanism, the conveying mechanism is arranged at the connecting position of the secondary sealing device and the primary vacuum sealing device, through primary sealing and secondary smashing sealing, the sealing performance and reliability of packaging are improved, and the problem of poor sealing caused by small particles is effectively solved. The problems of waste products and food deterioration caused by poor sealing are obviously reduced, and the shelf life and the market competitiveness of the product are improved.

Description

Technical Field

[0001] The utility model relates to the field of packaging equipment, in particular to a vacuum packaging machine with improved sealing quality. Background Art

[0002] At present, many food packaging has been vacuum-packed. Vacuum-packed food can greatly improve the shelf life. Vacuum packaging is completed by vacuuming the unsealed packaging bag in a vacuum chamber and then sealing it. At present, the market has adopted a turntable vacuum packaging machine for food vacuum packaging. The turntable vacuum packaging machine generally consists of a turntable and multiple vacuum chambers arranged on the circumference of the turntable. When working, the indexing rotation of the turntable drives all vacuum chambers to rotate synchronously. During the indexing rotation of the turntable, each vacuum chamber completes the actions of bagging, closing, vacuuming, heat sealing, cooling, exhausting and opening the lid. The bagging of the vacuum chamber is completed by the action of the bag transfer robot of the vacuum packaging machine.

[0003] The problem with the prior art is that when materials are added, tiny particles are easily left at the bag mouth. Such particles may be solid, such as spice particles dropped on food, or liquid, such as oil. These tiny particles are between the two sealed surfaces of the vacuum packaging, causing the packaging bag to appear to be vacuum sealed, but in fact the seal has a certain gap, resulting in the generation of waste vacuum seals. Such waste is difficult to detect and will lead to vacuum failure and deterioration of the internal materials after a period of time. Summary of the invention

[0004] The utility model aims at the shortcomings of the prior art and provides a vacuum packaging machine which can process tiny particles between seals and further seal packaging bags to improve the sealing quality.

[0005] To solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A vacuum packaging machine for improving sealing quality includes a primary vacuum sealing device, a vacuum chamber is arranged on the primary vacuum sealing device, the primary vacuum sealing device drives the packaging bag containing materials to be transported while sealing the packaging bag once in the vacuum chamber; it also includes a secondary sealing device, the secondary sealing device is connected to one side of the primary vacuum sealing device for transportation, the secondary sealing device breaks the primary sealing position and performs secondary sealing treatment; it also includes a conveying mechanism, the conveying mechanism is arranged at the connection position between the secondary sealing device and the primary vacuum sealing device, the conveying mechanism includes a clamp for keeping the packaging bag closed, the conveying mechanism is used to receive the packaging bag after the primary sealing, and convey the packaging bag to at least the secondary sealing device. The secondary sealing device includes a component for breaking and processing, the method mainly includes using ultrasonic vibration to break, and can also be carried out by physical vibration crushing. The secondary sealing device also includes a sealing head for sealing the packaging bag. This structure is a conventional technical means that is easy to know for people in this field, and will not be repeated here. It effectively solves the problem of poor sealing in traditional vacuum packaging and improves the reliability of packaging and food safety. Through the one-time sealing and the two-time crushing and sealing, the sealing and reliability of the packaging are improved, and the sealing problem caused by tiny particles is effectively avoided. The waste and food spoilage caused by poor sealing are significantly reduced, and the shelf life and market competitiveness of the product are improved.

[0007] Preferably, the secondary sealing device comprises a left sealing head and a right sealing head, at least one side of which is provided with an ultrasonic generator, which is connected to the left sealing head or the right sealing head or is provided with a vibration head for breaking the packaging bag, and at least one of the left sealing head and the right sealing head is connected with a translational force source for driving the two to move relative to or opposite to each other. The addition of the ultrasonic generator makes the breaking process more efficient, and can ensure that the packaging bag is thoroughly cleaned and sealed before the secondary sealing. The sealing quality is improved, the residue at the sealing point is reduced, and the packaging is beautiful and food safety is ensured.

[0008] Preferably, the left sealing head and the right sealing head are respectively arranged on the left mounting seat and the right mounting seat, the left mounting seat is transmission-connected with the first slider, the right mounting seat is transmission-connected with the second slider, and further comprises a driving block connected to the output end of the translational power source, the first slider and the second slider are transmission-connected with the driving block respectively. The linkage design of the slider and the mounting seat enables the sealing head to flexibly adjust its position to adapt to packaging bags of different sizes.

[0009] Preferably, the first slider, the driving block and the second slider are arranged in sequence from left to right, the driving block and the second slider move in the same direction in the left-right direction, and the driving block and the first slider move in opposite directions in the left-right direction. A rotatable rocker arm is installed on the driving block, and both ends of the rocker arm are respectively connected to the first slider and the second slider through a folding rod, the two ends of the folding rod on the left are respectively hinged to the first slider and the rocker arm, and the two ends of the folding rod on the right are respectively hinged to the rocker arm and the second slider, and a guide rod for horizontally guiding the first slider, the driving block and the second slider is also provided, and the first slider, the driving block and the second slider are passed through the guide rod.

[0010] Preferably, the first slider and the second slider are respectively located on the left and right sides of the driving block, the first slider is linked to the right mounting seat through a connecting rod, and the second slider is located above the left mounting seat and connected to the left mounting seat.

[0011] Preferably, a bagging device and a feeding device for adding materials to the packaging bag are provided on one side of the primary vacuum sealing device.

[0012] Preferably, the conveying mechanism includes a robot between the secondary sealing device and the primary vacuum sealing device, the robot including a clamp, and the movement of the robot drives the packaging bag sealed by the primary vacuum sealing device and clamped by the clamp to the location of the secondary sealing device.

[0013] The secondary sealing device is arranged on a turntable, and the conveying mechanism includes a turntable where the secondary sealing device is located and a manipulator between the primary vacuum sealing device and the turntable, and chucks are arranged on the manipulator and on the turntable where the secondary sealing device is located, and the chuck of the manipulator delivers the packaging bag to the chuck of the turntable where the secondary sealing device is located.

[0014] The primary vacuum sealing device is arranged on another turntable, and the bagging device and the feeding device are arranged on another turntable, which is connected with the turntable where the primary vacuum sealing device is located, and the discharge side of the secondary sealing device is provided with an output device for receiving the packaging bags after the secondary sealing process. The turntable design and the reasonable layout of the conveying mechanism enable the equipment to process packaging bags of various specifications, thus improving the flexibility and efficiency of production.

[0015] The utility model adopts the above technical scheme, and has remarkable technical effects: through the secondary sealing device, the packaging bag that has been filled with materials and has undergone vacuum sealing treatment is processed, the tiny particles between the seals are processed, and the packaging bag is further sealed to improve the sealing quality of the vacuum packaging machine, so that the finished packaging bag is completely sealed and will not be affected by the falling tiny particles, so that the quality of the vacuum packaging is better, the scrap rate of the packaging is greatly reduced, and the safety of the product, especially the safety of food packaging, is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a top view of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the secondary sealing device.

[0018] Figure 3 It is a stereogram of the utility model.

[0019] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. primary vacuum sealing device; 11. vacuum chamber; 12. bagging device; 13. feeding device; 2. secondary sealing device; 21. left sealing head; 22. right sealing head; 23. ultrasonic generating device; 24. translational force source; 25. left mounting seat; 26. right mounting seat; 27. first slider; 28. second slider; 29. ​​driving block; 291. rocker arm; 292. folding rod; 293. guide rod; 294. connecting rod; 3. conveying mechanism; 4. output device. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Example 1

[0022] A vacuum packaging machine with improved sealing quality, such as Figure 1 As shown, it includes a primary vacuum sealing device 1, on which a vacuum chamber 11 is provided. The primary vacuum sealing device 1 drives the packaging bag containing the material to be conveyed while sealing the packaging bag once in the vacuum chamber 11; it also includes a secondary sealing device 2, which is conveyed and connected with one side of the primary vacuum sealing device 1, and the secondary sealing device 2 breaks the primary sealing position and performs secondary sealing processing; it also includes a conveying mechanism 3, which is provided at the connecting position of the secondary sealing device 2 and the primary vacuum sealing device 1, and the conveying mechanism 3 includes a clamp for keeping the packaging bag closed, and the conveying mechanism 3 is used to receive the packaging bag after the primary sealing, and convey the packaging bag to at least the secondary sealing device 2.

[0023] like Figure 2 As shown, the secondary sealing device 2 includes a left sealing head 21 and a right sealing head 22. An ultrasonic generating device 23 is provided on at least one side of the left sealing head 21 and the right sealing head 22. The ultrasonic generating device 23 is connected to the left sealing head 21 or the right sealing head 22 or a vibration head is provided separately for breaking the packaging bag. At least one of the left sealing head 21 and the right sealing head 22 is connected to a translational force source 24 for driving the two to move relative to or opposite to each other.

[0024] The left sealing head 21 and the right sealing head 22 are respectively arranged on the left mounting seat 25 and the right mounting seat 26. The left mounting seat 25 is transmission-connected with the first slider 27, and the right mounting seat 26 is transmission-connected with the second slider 28. It also includes a driving block 29 connected to the output end of the translational force source 24. The first slider 27 and the second slider 28 are transmission-connected with the driving block 29 respectively.

[0025] The first slider 27, the driving block 29, and the second slider 28 are arranged in sequence from left to right. The driving block 29 and the second slider 28 move in the same direction in the left-right direction, and the driving block 29 and the first slider 27 move in opposite directions in the left-right direction. A rotatable swing rod 291 is installed on the driving block 29. The two ends of the swing rod 291 are connected to the first slider 27 and the second slider 28 through a folding rod 292. The two ends of the folding rod 292 on the left are respectively hinged to the first slider 27 and the swing rod 291, and the two ends of the folding rod 292 on the right are respectively hinged to the swing rod 291 and the second slider 28. A guide rod 293 is also provided for horizontally guiding the first slider 27, the driving block 29, and the second slider 28. The first slider 27, the driving block 29, and the second slider 28 are penetrated on the guide rod 293. The first slider, the driving block, and the second slider can be arranged separately, or a linkage sliding can be arranged on the guide rod 293 to realize transmission.

[0026] The first slider 27 and the second slider 28 are respectively located on the left and right sides of the driving block 29 . The first slider 27 is linked to the right mounting seat 26 through the connecting rod 294 . The second slider 28 is located above the left mounting seat 25 and connected to the left mounting seat 25 .

[0027] like Figure 3 As shown, a bagging device 12 and a feeding device 13 for adding materials to the packaging bag are arranged on one side of the primary vacuum sealing device 1 .

[0028] The secondary sealing device 2 may or may not be arranged on a turntable. As one embodiment, the secondary sealing device 2 is arranged on a turntable, and the conveying mechanism 3 includes a turntable where the secondary sealing device 2 is located and a manipulator between the primary vacuum sealing device 1 and the turntable. A chuck is arranged on the manipulator and on the turntable where the secondary sealing device 2 is located, and the chuck of the manipulator delivers the packaging bag to the chuck of the turntable where the secondary sealing device 2 is located. As another embodiment, the secondary sealing device 2 may not adopt the turntable conveying method. The conveying mechanism 3 directly connects the secondary sealing device 2 and the primary vacuum sealing device 1. The conveying mechanism 3 includes a manipulator between the secondary sealing device 2 and the primary vacuum sealing device 1. The manipulator includes a chuck. The movement of the manipulator drives the packaging bag sealed by the primary vacuum sealing device 1 clamped by the chuck to the position of the secondary sealing device 2.

[0029] The primary vacuum sealing device 1, the bagging device 12, and the feeding device 13 can be arranged on the turntable or not. As another embodiment, the primary vacuum sealing device 1 is arranged on a turntable different from the secondary sealing device 2, and the bagging device 12 and the feeding device 13 are arranged on another turntable. Then the whole machine has three turntables. The turntables where the bagging device 12 and the feeding device 13 are arranged are connected with the turntable where the primary vacuum sealing device 1 is located. The discharge side of the secondary sealing device 2 is provided with an output device 4 for receiving the packaging bag after the secondary sealing process. As another embodiment, the primary vacuum sealing device 1 can also adopt a linear assembly line conveying method instead of a turntable conveying method, but generally speaking, it will make the assembly line longer and the production efficiency slower.

[0030] Working principle: First, the bags are loaded and materials are added at the entrance of the first turntable, and then the bags are usually transferred to the primary vacuum sealing device 1 on another turntable for vacuum sealing in the vacuum chamber 11. Before vacuum sealing, the bag mouth can also be pre-sealed on the first turntable or another turntable after adding materials to facilitate vacuuming. The double turntable structure, bag loading, material addition, and the structure of transferring to the vacuum chamber 11 for sealing are all conventional technical means used by those skilled in the art in the art, and will not be elaborated here. The packaging bags on the primary vacuum sealing device 1 are transported circumferentially with the turntable, and at the same time, the packaging bags are given time for one sealing. Therefore, a turntable is generally provided with several primary vacuum sealing devices 1 to rotate the packaging bags circumferentially while sealing them. When the primary vacuum sealing device 1 rotates to the connection position with the secondary sealing device 2 or another turntable, the primary sealing is completed.

[0031] After the packaging bag in the vacuum chamber 11 of the vacuum sealing device is sealed once, it is transported by the conveying mechanism 3. The conveying mechanism 3 includes a device for receiving the packaging bag after the first sealing and conveying the packaging bag to at least the secondary sealing device 2. The conveying mechanism 3 generally includes a swing arm or a guide rail, which is used to travel back and forth between the two turntables. The clamping head conveys the clamped packaging bag directly to the secondary sealing device 2 or through the clamp set on the turntable where the secondary sealing device 2 is located through the swing arm or the guide rail, and then conveys it to the secondary sealing device 2 through the rotation of the turntable, and then performs a secondary sealing treatment on the packaging bag. The secondary sealing treatment may not be the second sealing operation, but a sealing treatment after vacuum sealing. When the packaging bag arrives at the secondary sealing device 2, the left sealing head 21 and the right sealing head 22 clamp the outer surfaces of the left and right sides of the packaging bag through movement, and the activated ultrasonic generator 23 will perform ultrasonic vibration treatment on the bag opening position of the packaging bag, which can crush the tiny solid and fluid substances at the bag opening position, such as sesame particles, oil, etc. Then, the left sealing head 21 and the right sealing head 22 will seal the bag opening again to ensure that the bag opening is sealed again without impurities, to ensure the packaging yield rate, and to ensure the stability of the vacuum sealing quality, so that the final sealing effect is better. This avoids the problem of unstable vacuum packaging caused by tiny particles affecting the sealing of the packaging and product quality.

[0032] In this embodiment, when the left sealing head 21 and the right sealing head 22 move laterally, the translational force source 24 drives the driving block 29 at the output end to move laterally. Assuming that it moves to the right, the rightward movement of the driving block 29 will drive the swing rod 291 to swing, and the swing rod 291 pushes the folding rods 292 on both sides thereof to rotate from an oblique state to a horizontal direction, thereby pushing the first slider 27 and the second slider 28 in the direction away from the driving block 29, respectively. The left mounting seat 25 and the right mounting seat 26 are respectively connected to the second slider 28 and the first slider 27, and the first slider 27 is linked with the right mounting seat 26 through the connecting rod 294 to drive the right mounting seat 26 to move to the left. The second slider 28 is located above the left mounting seat 25 and is connected to the left mounting seat 25, and the second slider 28 drives the left mounting seat 25 to move to the left, so that the left mounting seat 25 and the right mounting seat 26 move toward each other. If the driving block 29 moves to the left, the action is opposite, and the left mounting seat 25 and the right mounting seat 26 move away from each other. Since the driving block, the first slider 27, the second slider 28 and the left sealing head 21 and the right sealing head 22 are not located at the same height, the horizontal space occupied by the secondary sealing device 2 can be saved.

[0033] In the description of the present utility model, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0034] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A vacuum packaging machine for improving sealing quality, comprising: A primary vacuum sealing device (1), wherein a vacuum chamber (11) is provided on the primary vacuum sealing device (1), and the primary vacuum sealing device (1) drives a packaging bag containing a material to be conveyed while performing a primary sealing on the packaging bag in the vacuum chamber (11); Features: It also includes a secondary sealing device (2), the secondary sealing device (2) is connected to one side of the primary vacuum sealing device (1) for conveying, and the secondary sealing device (2) breaks the primary sealing position and performs secondary sealing processing; The device also comprises a conveying mechanism (3), which is arranged at a connection position between the secondary sealing device (2) and the primary vacuum sealing device (1), and comprises a clamp for keeping the packaging bag closed. The conveying mechanism (3) is used to receive the packaging bag after the primary sealing, and convey the packaging bag to at least the secondary sealing device (2).

2. A vacuum packaging machine for improving sealing quality according to claim 1, characterized in that: The secondary sealing device (2) comprises a left sealing head (21) and a right sealing head (22); an ultrasonic generator (23) is provided on at least one side of the left sealing head (21) or the right sealing head (22); the ultrasonic generator (23) is connected to the left sealing head (21) or the right sealing head (22) or a vibration head is provided separately for breaking up the packaging bag; at least one of the left sealing head (21) or the right sealing head (22) is connected to a translational force source (24) for driving the two to move relative to or opposite to each other.

3. A vacuum packaging machine for improving sealing quality according to claim 1, characterized in that: The left sealing head (21) and the right sealing head (22) are respectively arranged on a left mounting seat (25) and a right mounting seat (26); the left mounting seat (25) is drivingly connected to a first slider (27); the right mounting seat (26) is drivingly connected to a second slider (28); and further comprising a driving block (29) connected to an output end of a translational power source (24); the first slider (27) and the second slider (28) are respectively drivingly connected to the driving block (29).

4. A vacuum packaging machine for improving sealing quality according to claim 3, characterized in that: The first slider (27), the driving block (29), and the second slider (28) are arranged in sequence from left to right. The driving block (29) and the second slider (28) move in the same direction in the left-right direction, and the driving block (29) and the first slider (27) move in opposite directions in the left-right direction.

5. A vacuum packaging machine for improving sealing quality according to claim 4, characterized in that: A rotatable swing rod (291) is mounted on the driving block (29). Two ends of the swing rod (291) are respectively connected to the first slider (27) and the second slider (28) via a folding rod (292). Two ends of the folding rod (292) on the left are respectively hinged to the first slider (27) and the swing rod (291). Two ends of the folding rod (292) on the right are respectively hinged to the swing rod (291) and the second slider (28). A guide rod (293) is also provided for horizontally guiding the first slider (27), the driving block (29) and the second slider (28). The first slider (27), the driving block (29) and the second slider (28) are passed through the guide rod (293).

6. A vacuum packaging machine for improving sealing quality according to claim 3, characterized in that: The first slider (27) and the second slider (28) are respectively located on the left and right sides of the driving block (29); the first slider (27) is linked to the right mounting seat (26) via a connecting rod (294); and the second slider (28) is located above the left mounting seat (25) and is connected to the left mounting seat (25).

7. The vacuum packaging machine for improving sealing quality according to claim 1, characterized in that: A bagging device (12) and a feeding device (13) for adding material to the packaging bag are provided on one side of the primary vacuum sealing device (1).

8. The vacuum packaging machine for improving sealing quality according to claim 7, characterized in that: The conveying mechanism (3) comprises a manipulator between the secondary sealing device (2) and the primary vacuum sealing device (1), the manipulator comprising a clamp, and the movement of the manipulator drives the packaging bag sealed by the primary vacuum sealing device (1) and clamped by the clamp to the location of the secondary sealing device (2).

9. The vacuum packaging machine for improving sealing quality according to claim 7, characterized in that: The secondary sealing device (2) is arranged on a turntable, and the conveying mechanism (3) comprises a turntable where the secondary sealing device (2) is located and a manipulator between the primary vacuum sealing device (1) and the turntable, wherein chucks are arranged on the manipulator and on the turntable where the secondary sealing device (2) is located, and the chuck of the manipulator conveys the packaging bag to the chuck of the turntable where the secondary sealing device (2) is located.

10. A vacuum packaging machine for improving sealing quality according to claim 8 or 9, characterized in that: The primary vacuum sealing device (1) is arranged on another turntable, and the bagging device (12) and the feeding device (13) are arranged on another turntable, which is connected to the turntable where the primary vacuum sealing device (1) is located, and the discharge side of the secondary sealing device (2) is provided with an output device (4) for receiving the packaging bags after the secondary sealing process.

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