A skin vacuum packaging equipment for food packaging

Abstract

The present invention relates to the technical field of packaging equipment, and in particular to a skin-fitting vacuum packaging equipment for food packaging, comprising an arc-shaped cylinder, two arc-shaped channels, a rotating sleeve and a rotating ring, wherein the two arc-shaped channels are respectively inserted at two ends of the arc-shaped cylinder, the rotating sleeve and the rotating ring both pass through the arc-shaped cylinder and the arc-shaped channel, and the arc-shaped cylinder, the arc-shaped channel, the rotating sleeve and the rotating ring are coaxial, the circumferential inner wall of the rotating sleeve is slidably attached to the inner wall of the arc-shaped channel, and the bottom surface of the rotating ring is slidably attached to the inner wall of the arc-shaped channel; since the arc-shaped cylinder is always kept in a vacuum state, it is not necessary to re-evacuate each time packaging, thereby significantly reducing energy consumption and shortening the time required for vacuuming, thereby improving packaging efficiency; the equipment can realize a continuous automated packaging process, and through the rotation of the rotating sleeve and the rotating ring and the separation of the partition, the food can be packaged in sequence in different packaging spaces, thereby greatly improving the packaging speed and production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of packaging equipment, in particular to a skin-type vacuum packaging equipment for food packaging. Background Art

[0002] With the improvement of people's living standards and the enhancement of awareness of food safety, the development of food packaging technology has become particularly important. Among the many food packaging methods, skin vacuum packaging is highly favored due to its unique preservation performance and beautiful display effect. This technology can not only effectively extend the shelf life of food, but also reduce the use of packaging materials, which meets the requirements of modern society for sustainable development.

[0003] Although the existing skin vacuum packaging equipment on the market can achieve basic functions, when the vacuum is working, the equipment needs to evacuate the air in the vacuum chamber every time it is turned on, that is, the vacuum environment needs to be re-produced every time packaging is performed. After the packaging is completed, when the equipment is turned on, the outside air will fill the vacuum chamber. Therefore, more energy is required for vacuuming, and each time the vacuum environment is generated, it takes time, which seriously affects work efficiency. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a skin vacuum packaging device for food packaging, and the specific technical solution adopted is:

[0005] A skin-type vacuum packaging device for food packaging comprises an arc-shaped cylinder, two arc-shaped channels, a rotating sleeve and a rotating ring, wherein the two arc-shaped channels are respectively inserted at the two ends of the arc-shaped cylinder, the rotating sleeve and the rotating ring both pass through the arc-shaped cylinder and the arc-shaped channel, and the arc-shaped cylinder, the arc-shaped channel, the rotating sleeve and the rotating ring are coaxial, the circumferential inner wall of the rotating sleeve is slidably attached to the inner wall of the arc-shaped channel, the bottom surface of the rotating ring is slidably attached to the inner wall of the arc-shaped channel, the rotating sleeve and the rotating ring are butted, and the cross section of the rotating sleeve and the cross section of the rotating ring form a right angle, a plurality of partitions are arranged on the rotating sleeve and the rotating ring, and the plurality of partitions divide the space on the rotating sleeve and the rotating ring into a plurality of packaging spaces, and when the partition slides in the arc-shaped channel, the partition isolates the arc-shaped channel, and there is at least one partition in the arc-shaped channel;

[0006] Wherein, a heating unit is arranged in the packaging space, and the heating unit is used to heat the film, and an air suction pipe is arranged on the arc-shaped cylinder;

[0007] The heating unit comprises an electric heating ring and an electric heating plate located inside the electric heating ring;

[0008] The bottom of the arc-shaped cylinder is provided with a base, a motor is provided on the base, a gear is provided at the output end of the motor, a tooth groove is provided at the bottom of the rotating ring, and the teeth in the tooth groove mesh with the gear;

[0009] The bottom of the arc-shaped channel is coplanar with the bottom of the arc-shaped cylinder.

[0010] Furthermore, a notch is provided on the side wall of the rotating sleeve in the packaging space, the notch is vertical, a slider is provided in the notch for vertical sliding, an insulating disk is provided on the slider, a spring is provided on the insulating disk, the spring is connected to the boss provided on the rotating sleeve, and the electric heating ring is fixed on the slider.

[0011] Furthermore, a bottom plate is slidably provided on the rotating ring in the packaging space, the sliding direction of the bottom plate is along the radial direction of the rotating ring, the bottom plate is connected to the electric heating ring through an inclined connecting rod, and a handle is provided on the bottom plate.

[0012] Furthermore, a limit block used in conjunction with the connecting rod is provided on the rotating ring in the packaging space.

[0013] Furthermore, a first conductive sheet and a second conductive sheet are arranged on the side wall of the slider away from the electric heating ring, and a second arc-shaped conductor used in conjunction with the first conductive sheet and a first arc-shaped conductor used in conjunction with the second conductive sheet are arranged in the arc-shaped cylinder;

[0014] The first conductive sheet and the second conductive sheet are staggered in the vertical direction, the first arc conductor and the second arc conductor are staggered in the vertical direction, the first conductive sheet is electrically connected to the electric heating ring, and the second conductive sheet is electrically connected to the electric heating plate.

[0015] Furthermore, the two arc-shaped channels are connected via an air guide tube.

[0016] The advantages of the present invention are:

[0017] Since the arc tube is always kept in a vacuum state, there is no need to re-evacuate each time packaging, which significantly reduces energy consumption and shortens the time required for vacuuming, thereby improving packaging efficiency; the equipment can realize a continuous automated packaging process, through the rotation of the rotating sleeve and the rotating ring and the separation of the partition, the food can be packaged in different packaging spaces in turn, thereby greatly improving the packaging speed and production efficiency; due to the setting of the arc channel and the partition, the inside of the arc tube can be maintained in a vacuum state, and the vacuum environment does not need to be interrupted even during the packaging process, which means that the food in the entire packaging process can be kept in the best preservation conditions; in summary, this type of body-fitting vacuum packaging equipment can not only improve production efficiency and reduce energy consumption, but also ensure packaging quality. It is a very practical and advanced food packaging solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle arc tube when viewed from above;

[0021] Figure 3 yes Figure 1 Schematic diagram of the cross-section and top view of the middle arc tube structure;

[0022] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure of the heating unit;

[0023] Figure 5 yes Figure 4 A schematic diagram of the structure from another perspective;

[0024] Figure numerals: 1. arc cylinder; 2. arc channel; 3. rotating sleeve; 4. rotating ring; 5. partition; 6. electric heating ring; 7. electric heating plate; 8. notch; 9. slider; 10. insulating disk; 11. spring; 12. bottom plate; 13. connecting rod; 14. handle; 15. limit block; 16. first conductive sheet; 17. second conductive sheet; 18. first arc conductor; 19. second arc conductor; 20. air guide tube; 21. tooth groove; 22. motor; 23. gear; 24. base; 25. suction tube. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0028] like Figures 1 to 5 As shown, a body-contact vacuum packaging device for food packaging of the present invention comprises an arc-shaped cylinder 1, two arc-shaped channels 2, a rotating sleeve 3 and a rotating ring 4, the two arc-shaped channels 2 are respectively inserted at the two ends of the arc-shaped cylinder 1, the rotating sleeve 3 and the rotating ring 4 both pass through the arc-shaped cylinder 1 and the arc-shaped channel 2, and the arc-shaped cylinder 1, the arc-shaped channel 2, the rotating sleeve 3 and the rotating ring 4 are coaxial, the circumferential inner wall of the rotating sleeve 3 is slidably attached to the inner wall of the arc-shaped channel 2, the bottom surface of the rotating ring 4 is slidably attached to the inner wall of the arc-shaped channel 2, the rotating sleeve 3 and the rotating ring 4 are butt-jointed, and the cross section of the rotating sleeve 3 and the cross section of the rotating ring 4 form a right angle, a plurality of partitions 5 are arranged on the rotating sleeve 3 and the rotating ring 4, the plurality of partitions 5 divide the space on the rotating sleeve 3 and the rotating ring 4 into a plurality of packaging spaces, when the partition 5 slides in the arc-shaped channel 2, the partition 5 isolates the arc-shaped channel 2, and there is at least one partition 5 in the arc-shaped channel 2;

[0029] A heating unit is provided in the packaging space, and the heating unit is used to heat the film. An air suction pipe 25 is provided on the arc tube 1 .

[0030] In detail, the rotating sleeve 3 and the rotating ring 4 can pass through the arc tube 1 and the arc channel 2 and rotate continuously. Since the rotating sleeve 3 and the rotating ring 4 are guided by the inner wall of the arc channel 2, the arc channel 2 supports the rotating sleeve 3 and the rotating ring 4. The rotating sleeve 3 and the rotating ring 4 are separated from the inner wall of the arc tube 1. The rotating sleeve 3 is located on the side wall of the arc channel 2 close to the axis of the arc tube 1, and the rotating ring 4 is located on the lower side of the arc channel 2. Therefore, the rotating sleeve 3 and the rotating ring 4 are perpendicular to each other, and the bottom of the rotating sleeve 3 is butted against the inner wall of the circumference of the rotating ring 4, so the rotating sleeve 3 The rotating ring 4 can form a ring with a right-angled cross-section. Multiple partitions 5 separate the space on the rotating sleeve 3 and the rotating ring 4, so that food can be packaged in each independent packaging space. The heating unit in the packaging space can heat and soften the film. Since there is at least one partition 5 inside the arc channel 2, the arc tube 1 cannot be connected to the outside world through the arc channel 2, thereby achieving the purpose of isolating the arc tube 1, and when the rotating sleeve 3 and the rotating ring 4 rotate, the arc tube 1 can still achieve the isolation effect, and the suction pipe 25 can extract the air in the arc tube 1.

[0031] When in use, the suction pipe 25 draws a vacuum inside the arc tube 1, places a tray containing food in the packaging space, and covers the tray with a film, and rotates the rotating sleeve 3 and the rotating ring 4. The rotating sleeve 3 and the rotating ring 4 transfer the food to the arc tube 1 through an arc channel 2. Since the interior of the arc tube 1 is a vacuum environment, the food and the film can be in a vacuum environment. The film is heated by the heating unit to soften the film and adhere it to the food and the tray. Since there is no air between the film and the tray, the film can be flatly adhered to the food and the tray, thereby realizing body-fitting vacuum packaging. When the packaged tray is removed through another arc channel 2, the food can be taken away and the next tray can be placed in the packaging space, thereby realizing continuous and automatic packaging. Moreover, since the vacuum environment in the arc tube 1 always exists, there is no need to repeatedly draw the vacuum, which can greatly save energy and save vacuum time, making it convenient to directly and quickly carry out body-fitting packaging of food.

[0032] It should be pointed out that, since the packaging space will carry a small amount of air when it moves into the arc tube 1, this part of the air will be directly sucked away through the suction pipe 25, which will not affect the normal progress of the packaging work.

[0033] Since the arc tube 1 is always kept in a vacuum state, there is no need to re-evacuate each time packaging, thus significantly reducing energy consumption and shortening the time required for vacuuming, thereby improving packaging efficiency; the equipment can realize a continuous automated packaging process, through the rotation of the rotating sleeve 3 and the rotating ring 4 and the separation of the partition 5, the food can be packaged in different packaging spaces in turn, thereby greatly improving the packaging speed and production efficiency; due to the setting of the arc channel 2 and the partition 5, the inside of the arc tube 1 can be maintained in a vacuum state, and there is no need to interrupt the vacuum environment even during the packaging process, which means that the food in the entire packaging process can be kept under the best preservation conditions; in summary, this body-fitting vacuum packaging equipment can not only improve production efficiency and reduce energy consumption, but also ensure packaging quality, and is a very practical and advanced food packaging solution.

[0034] Furthermore, the heating unit includes an electric heating ring 6 and an electric heating plate 7 located inside the electric heating ring 6 .

[0035] In detail, the electric heating ring 6 is used to heat the film at the edge of the tray, and the electric heating plate 7 is used to heat the film on the top of the tray. During packaging, the electric heating ring 6 presses the edge of the film to fit the tray, and the electric heating plate 7 heats the film to soften the film and apply it to the food and the tray. Thereafter, the electric heating ring 6 heats up and heats the film at the edge of the tray to achieve edge sealing of the film, thereby achieving heating and sealing of the film.

[0036] It should be pointed out that the electric heating ring 6 and the electric heating plate 7 are insulated and heat-insulated from each other.

[0037] Furthermore, a notch 8 is provided on the side wall of the rotating sleeve 3 in the packaging space, and the notch 8 is vertical. A slider 9 is provided in the notch 8 for vertical sliding. An insulating disk 10 is provided on the slider 9, and a spring 11 is provided on the insulating disk 10. The spring 11 is connected to a boss provided on the rotating sleeve 3, and the electric heating ring 6 is fixed on the slider 9.

[0038] In detail, the spring 11 can provide downward pressure to the electric heating ring 6 through the insulating disk 10 and the slider 9, so that during the process of transferring the pallet in the packaging space, the electric heating ring 6 presses the film on the pallet to prevent the film from falling when the pallet moves.

[0039] Furthermore, a bottom plate 12 is slidably disposed on the rotating ring 4 in the packaging space, the sliding direction of the bottom plate 12 is along the radial direction of the rotating ring 4, the bottom plate 12 is connected to the electric heating ring 6 through an inclined connecting rod 13, and a handle 14 is disposed on the bottom plate 12.

[0040] In detail, the connecting rod 13 is inclined, and the two ends of the connecting rod 13 are rotatably connected to the side walls of the electric heating ring 6 and the side walls of the bottom plate 12 respectively. The bottom plate 12 is used to carry the pallet. When packaging, the worker can pull the bottom plate 12 outward in the packaging space through the handle 14. At this time, the bottom plate 12 will push the electric heating ring 6 upward through the connecting rod 13, so that in the process of moving the bottom plate 12 out, the electric heating ring 6 is actively moved away from the bottom plate 12, and the pallet is placed on the bottom plate 12 and pushed in the opposite direction to move into the packaging space. The bottom plate 12 pulls the electric heating ring 6 downward through the connecting rod 13 and presses the electric heating ring 6 on the pallet. In actual use, a robotic arm or other pulling mechanism can also be used to provide power for the movement of the bottom plate 12.

[0041] Furthermore, a limit block 15 used in conjunction with the connecting rod 13 is provided on the rotating ring 4 in the packaging space.

[0042] In detail, the limit block 15 is fixed on the rotating ring 4, and the limit block 15 blocks the connecting rod 13 on the bottom plate 12, thereby preventing the bottom plate 12 from leaving the packaging space.

[0043] Furthermore, a first conductive sheet 16 and a second conductive sheet 17 are provided on the side wall of the slider 9 away from the electric heating ring 6, and a second arc-shaped conductor 19 used in conjunction with the first conductive sheet 16 and a first arc-shaped conductor 18 used in conjunction with the second conductive sheet 17 are provided in the arc-shaped cylinder 1;

[0044] The first conductive sheet 16 and the second conductive sheet 17 are staggered in the vertical direction, the first arc conductor 18 and the second arc conductor 19 are staggered in the vertical direction, the first conductive sheet 16 is electrically connected to the electric heating ring 6 , and the second conductive sheet 17 is electrically connected to the electric heating plate 7 .

[0045] In detail, the end face of the slider 9 equipped with the first conductive sheet 16 and the second conductive sheet 17 is located on the inner side of the notch 8, so that the notch 8 can be prevented from colliding with the arc channel 2. The first conductive sheet 16 and the second conductive sheet 17 extend to the outside of the notch 8. When the packaging space moves, the slider 9 and the first conductive sheet 16 and the second conductive sheet 17 thereon move synchronously. The first conductive sheet 16 and the second conductive sheet 17 both slide in contact with the inner wall of the arc channel 2, and the first conductive sheet 16 and the second conductive sheet 17 bend. When the first conductive sheet 16 and the second conductive sheet 17 move to the position of the first arc conductor 18, the second conductive sheet 17 contacts with the first arc conductor 18 and is energized, and the second conductive sheet 17 slides on the first arc conductor 18. At this time, the electric heating plate 7 is energized. When the first arc conductor 18 is separated from the second conductive sheet 17, the first conductive sheet 16 contacts with the second arc conductor 19 and is energized. The first conductive sheet 16 slides on the second arc conductor 19, and the electric heating ring 6 is energized, thereby realizing the heating and heat sealing of the film.

[0046] Furthermore, the two arc-shaped channels 2 are connected via an air guide pipe 20 .

[0047] In detail, the packaging space in the arc channel 2 as the input end is in a normal pressure state, and the packaging space in the arc channel 2 as the output end is in a negative pressure state. At this time, air will flow from the normal pressure area into the negative pressure area through the air duct 20, thereby replenishing the air in the packaging space in the negative pressure state to avoid vibration or noise due to excessive pressure difference when the space moves directly out of the arc channel 2. At the same time, the pressure in the normal pressure packaging space can be reduced, thereby reducing the amount of air entering the arc tube 1.

[0048] Furthermore, a base 24 is provided at the bottom of the arc-shaped cylinder 1, a motor 22 is provided on the base 24, a gear 23 is provided at the output end of the motor 22, and a tooth groove 21 is provided at the bottom of the rotating ring 4, and the teeth in the tooth groove 21 mesh with the gear 23;

[0049] The bottom of the arc-shaped channel 2 is coplanar with the bottom of the arc-shaped tube 1 .

[0050] In detail, by making the bottom of the arc channel 2 coplanar with the bottom of the arc tube 1, the bottom surface of the rotating ring 4 is also attached to the bottom of the inner wall of the arc tube 1, so that the tooth groove 21 can be blocked to prevent air from entering the arc tube 1 through the tooth groove 21. The motor 22 can drive the rotating ring 4 to rotate through the gear 23, thereby driving the equipment to operate.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A skin vacuum packaging equipment for food packaging, characterized in that: The invention comprises an arc-shaped cylinder (1), two arc-shaped channels (2), a rotating sleeve (3) and a rotating ring (4), wherein the two arc-shaped channels (2) are respectively inserted at two ends of the arc-shaped cylinder (1), the rotating sleeve (3) and the rotating ring (4) both pass through the arc-shaped cylinder (1) and the arc-shaped channel (2), and the arc-shaped cylinder (1), the arc-shaped channel (2), the rotating sleeve (3) and the rotating ring (4) are coaxial, the circumferential inner wall of the rotating sleeve (3) is slidably attached to the inner wall of the arc-shaped channel (2), and the bottom surface of the rotating ring (4) is slidably attached to the bottom surface of the arc-shaped channel (2). On the inner wall of the arc-shaped channel (2), the rotating sleeve (3) and the rotating ring (4) are butted against each other, and the cross-section of the rotating sleeve (3) and the cross-section of the rotating ring (4) form a right angle. A plurality of partitions (5) are provided on the rotating sleeve (3) and the rotating ring (4), and the plurality of partitions (5) divide the space on the rotating sleeve (3) and the rotating ring (4) into a plurality of packaging spaces. When the partitions (5) slide in the arc-shaped channel (2), the partitions (5) isolate the arc-shaped channel (2), and there is at least one partition (5) in the arc-shaped channel (2); Wherein, a heating unit is provided in the packaging space, the heating unit is used to heat the film, and an air suction pipe (25) is provided on the arc-shaped cylinder (1); The heating unit comprises an electric heating ring (6) and an electric heating plate (7) located inside the electric heating ring (6); The bottom of the arc-shaped cylinder (1) is provided with a base (24), a motor (22) is provided on the base (24), a gear (23) is provided at the output end of the motor (22), a tooth groove (21) is provided at the bottom of the rotating ring (4), and teeth in the tooth groove (21) mesh with the gear (23); The bottom of the arc-shaped channel (2) is coplanar with the bottom of the arc-shaped cylinder (1); A notch (8) is provided on the side wall of the rotating sleeve (3) in the packaging space, the notch (8) is vertical, a slider (9) is provided in the notch (8) for vertical sliding, an insulating disk (10) is provided on the slider (9), a spring (11) is provided on the insulating disk (10), the spring (11) is connected to a boss provided on the rotating sleeve (3), and the electric heating ring (6) is fixed on the slider (9); A bottom plate (12) is slidably provided on the rotating ring (4) in the packaging space, the sliding direction of the bottom plate (12) is along the radial direction of the rotating ring (4), the bottom plate (12) is connected to the electric heating ring (6) via an inclined connecting rod (13), and a handle (14) is provided on the bottom plate (12); A limit block (15) is provided on the rotating ring (4) in the packaging space and is used in conjunction with the connecting rod (13); A first conductive sheet (16) and a second conductive sheet (17) are provided on a side wall of the slider (9) away from the electric heating ring (6); a second arc-shaped conductor (19) used in conjunction with the first conductive sheet (16) and a first arc-shaped conductor (18) used in conjunction with the second conductive sheet (17) are provided in the arc-shaped cylinder (1); The first conductive sheet (16) and the second conductive sheet (17) are staggered in the vertical direction, the first arc-shaped conductor (18) and the second arc-shaped conductor (19) are staggered in the vertical direction, the first conductive sheet (16) is electrically connected to the electric heating ring (6), and the second conductive sheet (17) is electrically connected to the electric heating plate (7).

2. The skin vacuum packaging equipment for food packaging according to claim 1, characterized in that: The two arc-shaped channels (2) are connected via an air guide tube (20).

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