A nitrogen-filled fresh-keeping packaging device for storage
Patent Information
- Application Number
- CN202522512644.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-26
Smart Images
Figure CN224797300U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food preservation equipment technology, and in particular to a nitrogen-filled preservation packaging device for storage. Background Technology
[0002] Packaging is a crucial element in some demanding food industries, directly impacting product shelf life and quality. For food packaging requiring nitrogen filling, the requirements are particularly stringent, especially regarding the packaging process and equipment.
[0003] Existing nitrogen-filled packaging production lines for bottled liquids (such as goji berry syrup) transport unsealed bottled products to the nitrogen-filling device below the production line. After the sensor detects the product, the controller controls the electronically controlled valve to open briefly for a period of time, causing the nitrogen filling port below to spray a stream of nitrogen gas towards the opening of the product below. Part of the nitrogen gas enters the bottle, and after the bottle is sealed, it plays a role in preserving the product inside.
[0004] However, because the product moves continuously during nitrogen filling, and existing nitrogen-filling packaging equipment mostly uses fixed nitrogen filling heads, nitrogen filling can only be performed momentarily during product movement. This results in insufficient nitrogen filling time, and the nitrogen concentration inside the bottle does not reach the ideal preservation standard. In addition, existing equipment is difficult to adapt to the nitrogen filling requirements of bottles of different heights, and adjustments are inconvenient.
[0005] Therefore, it is necessary to provide a nitrogen-filled preservation packaging device for storage to solve the above-mentioned technical problems. Utility Model Content
[0006] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a nitrogen-filled preservation packaging device for storage that can move with the products on the production line and fill them with nitrogen, thereby increasing the nitrogen filling time and filling volume of the products and improving the product preservation effect.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A nitrogen-filled preservation packaging device for storage includes: a support frame, a movable nitrogen-filling mechanism, and a detection mechanism; the movable nitrogen-filling mechanism includes a track frame, a slider, a nitrogen-filling head, and a first electric push rod. The track frame is connected to the support frame, the slider is slidably connected to the track frame, and the sliding direction of the slider is parallel to the conveying direction of the production line. The nitrogen-filling head is fixed on the slider, and its bottom is located on the moving path of the bottled products on the production line. The nitrogen-filling head is connected to a nitrogen supply device. The first electric push rod is fixed on one side of the track frame, and the output shaft of the electric push rod is connected to the slider; the detection mechanism is used to detect the starting and stopping positions of the filling.
[0008] Preferably, the detection mechanism includes a mounting slot, a front detection head, and a rear detection head. The mounting slot is fixed on a support frame. The front and rear detection heads are installed on the side of the mounting slot facing the production line. The distance between the front and rear detection heads is less than the minimum distance between two products on the production line. The front and rear detection heads can use infrared or laser sensors or other types of sensors to detect the starting and ending nitrogen filling positions of the products, respectively.
[0009] Preferably, the mounting slot is provided with two adjustment components, which are respectively connected to the front detection head and the rear detection head, and are used to adjust the position of the front detection head and the rear detection head.
[0010] Preferably, the adjustment component includes a movable block that is slidably installed in the mounting groove, an adjustment screw that is threaded onto the side of the mounting groove, one end of the adjustment screw that is rotatably connected to the movable block, and the movable block that is fixedly connected to the front detection head or the rear detection head.
[0011] Preferably, an electrically controlled valve is installed on the support frame, with one end of the valve connected to the gas source and the other end connected to the nitrogen charging head via a corrugated hose.
[0012] Preferably, a control box is mounted on the support frame, and control equipment such as controllers are installed inside the control box.
[0013] Preferably, a second electric push rod is installed on the support frame, and the bottom end of the second electric push rod is fixedly connected to the track frame.
[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) This utility model sets up a support frame, a mobile nitrogen filling mechanism and a detection mechanism. The detection mechanism detects the start and end positions of nitrogen filling. The mobile nitrogen filling mechanism can move with the products on the production line and fill nitrogen, thereby increasing the nitrogen filling time of the products and thus increasing the nitrogen content in the products, which is beneficial to the preservation of the products. (2) By setting two adjustment components including a moving block and an adjusting screw, this utility model can easily adjust the front and rear positions of the front detection head and the rear detection head, thereby adjusting the nitrogen filling start position and the nitrogen filling end position; (3) By setting up an electric control valve and a corrugated hose, this utility model can conveniently control the amount of nitrogen injected into the nitrogen filling head and the filling mode; (4) By installing a second electric push rod on the support frame, the height of the nitrogen filling head can be easily adjusted to adapt to nitrogen filling operations of products of different heights, reduce the distance between the nitrogen head and the product, and reduce nitrogen leakage. Attached Figure Description
[0015] Figure 1A schematic diagram of the structure of the nitrogen-filled preservation packaging device for storage provided by this utility model; Figure 2 for Figure 1 The diagram shows a movable nitrogen filling mechanism in a nitrogen-filled preservation packaging device for storage. Figure 3 for Figure 1 The diagram shows the structure of the detection mechanism in a nitrogen-filled preservation packaging device used for storage; Figure 4 for Figure 1 The diagram shown is a front view of a nitrogen-filled preservation packaging device used for storage.
[0016] The corresponding names of the attached figures are: 1-support frame, 2-movable nitrogen filling mechanism, 3-detection mechanism, 4-second electric push rod, 5-electric control valve, 6-control box, 21-track frame, 22-slider, 23-nitrogen filling head, 24-first electric push rod, 25-corrugated hose, 31-mounting groove, 32-front detection head, 33-rear detection head, 34-moving block, 35-adjusting screw. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments. Example
[0018] like Figure 1-4As shown, this utility model provides a nitrogen-filled preservation packaging device for storage, comprising: a support frame 1 fixedly installed on one side of the product conveying production line; bottled products are conveyed via the production line, and its specific structure can adopt the existing nitrogen-filled packaging production line structure, which will not be described in detail here. A movable nitrogen-filling mechanism 2 and a detection mechanism 3 are provided on the support frame 1. The movable nitrogen-filling mechanism 2 includes a track frame 21, a slider 22, a nitrogen-filling head 23, and a first electric push rod 24. The track frame 21 is connected to the support frame 1, and the slider 22 is slidably connected to the track frame 21, with the sliding direction of the slider 22 parallel to the conveying direction of the production line. The nitrogen-filling head 23 is fixed on the slider 22, and its bottom is located on the moving path of the bottled products on the production line. The nitrogen-filling head 23 is connected to a nitrogen supply device. The first electric push rod 24 is fixed on one side of the track frame 21, and the electric push rod 24... The output shaft is connected to the slider 22; the detection mechanism 3 includes a mounting groove 31, a front detection head 32 and a rear detection head 33. The mounting groove 31 is fixed on the support frame 1. The front detection head 32 and the rear detection head 33 are installed on the side of the mounting groove 31 facing the production line. The distance between the front detection head 32 and the rear detection head 33 is less than the minimum distance between two products on the production line. The front detection head 32 and the rear detection head 33 can use infrared or laser sensors or other types of sensors to detect the starting nitrogen filling position and the stopping nitrogen filling position of the product, respectively. During use, the product moves linearly on the production line. When the product moves to the alignment position of the front detection head 32 (at this time, the product bottle opening is slightly in front of the nitrogen filling head 23), the controller receives a signal and controls the nitrogen filling head 23 to start spraying nitrogen gas downwards. At the same time, the controller controls the first electric push rod 24 to start, pushing the slider 22 to move the nitrogen filling head 23, and the moving speed is consistent with the moving speed of the product on the production line. Since it takes a certain amount of time for the first electric push rod 24 to start and accelerate to a constant speed, the bottle opening can be roughly aligned with the nitrogen filling head 23 after the nitrogen filling head 23 reaches a constant speed. During this period, nitrogen gas can be continuously or intermittently sprayed onto the product bottle opening below. When the product moves to the alignment position of the rear detection head 33, the controller receives a signal, stops supplying gas to the nitrogen filling head 23, and controls the first electric push rod 24 to reverse, so that the nitrogen filling head 23 moves back to the initial position and begins to wait for the nitrogen injection of the next product. As the nitrogen filling head 23 moves along the production line from its initial position, nitrogen can be continuously or intermittently injected into the product. A longer injection time results in a higher nitrogen content within the product, which is more beneficial for preservation. The nitrogen-injected product then continues to move along the production line to the packaging end, where it is packaged by the packaging equipment; details of this process will not be elaborated further.
[0019] By setting up a support frame 1, a mobile nitrogen filling mechanism 2, and a detection mechanism 3, the detection mechanism 3 detects the start and end positions of nitrogen filling. The mobile nitrogen filling mechanism 2 can move with the products on the production line and fill them with nitrogen, thereby increasing the nitrogen filling time of the products and thus increasing the nitrogen content in the products, which is beneficial to the preservation of the products. Example
[0020] like Figure 3 As shown, two adjustment components are provided on the mounting slot 31. These components are connected to the front detection head 32 and the rear detection head 33, respectively. Specifically, each adjustment component includes a movable block 34 slidably mounted within the mounting slot 31, and an adjustment screw 35 threadedly mounted on the side of the mounting slot 31. One end of the adjustment screw 35 is rotatably connected to the movable block 34, and the movable block 34 is fixedly connected to either the front detection head 32 or the rear detection head 33. In use, rotating the adjustment screw 35 moves the movable block 34, thereby adjusting the position of the front detection head 32 or the rear detection head 33. This, in turn, adjusts the nitrogen filling start and end positions.
[0021] By setting two adjustment components, including a moving block 34 and an adjusting screw 35, the front and rear positions of the front detection head 32 and the rear detection head 33 can be easily adjusted, thereby adjusting the nitrogen filling start position and the nitrogen filling end position. Example
[0022] like Figure 1-3 As shown, in this embodiment, an electrically controlled valve 5 is installed on the support frame 1. One end of the electrically controlled valve 5 is connected to the gas source, and the other end of the electrically controlled valve 5 is connected to the nitrogen filling head 23 through a corrugated hose 25. The corrugated hose 25 can be extended, bent, or other hoses can be used instead. It is worth noting that the corrugated hose 25 is long enough. The electrically controlled valve 5 is connected to the controller and is controlled by the controller. In use, the controller controls the opening and closing of the electrically controlled valve 5, thereby controlling the nitrogen to enter the nitrogen filling head 23 after passing through the corrugated hose 25. The controller controls the opening and closing time and interval of the electrically controlled valve 5, which can control the continuous or intermittent filling of nitrogen into the nitrogen filling head 23, and control the nitrogen filling volume and filling mode.
[0023] By setting up the electronically controlled valve 5 and the corrugated hose 25, it is possible to easily control the amount of nitrogen injected into the nitrogen filling head 23 and the filling mode. Example
[0024] like Figure 1 As shown, in this embodiment, a control box 6 is installed on the support frame 1, and control devices such as controllers are installed inside the control box. The controller can be an industrial PLC or other types of controllers.
[0025] By installing the control box 6 on the support frame 1, the installation of control equipment in the device can be facilitated. Example
[0026] like Figure 1As shown, a second electric push rod 4 is installed on the support frame 1. The bottom end of the second electric push rod 4 is fixedly connected to the track frame 21 in the movable nitrogen filling mechanism 2. The second electric push rod 4 can be used to easily control the lifting and lowering of the track frame 21 and adjust the height of the nitrogen filling head 23, so that the distance between the nitrogen filling head 23 and the bottle mouth of the product can be adjusted to reduce nitrogen leakage or adapt to nitrogen filling operations for products of different heights.
[0027] By installing a second electric push rod 4 on the support frame 1, the height of the nitrogen filling head 23 can be easily adjusted to adapt to nitrogen filling operations for products of different heights, reduce the distance between the nitrogen head 23 and the product, and reduce nitrogen leakage.
[0028] Working Principle: During use, the product moves linearly along the production line. When the product reaches the alignment position of the front detection head 32, the controller receives a signal and controls the nitrogen filling head 23 to begin spraying nitrogen gas downwards. Simultaneously, the controller activates the first electric push rod 24, pushing the slider 22 to move the nitrogen filling head 23 at the same speed as the product moving on the production line. During this period, nitrogen gas is continuously or intermittently sprayed onto the product bottle opening. When the product reaches the alignment position of the rear detection head 33, the controller receives a signal, stops supplying nitrogen to the nitrogen filling head 23, and controls the first electric push rod 24 to reverse, causing the nitrogen filling head 23 to move back to its initial position, ready to wait for the next product to be filled with nitrogen. As the nitrogen filling head 23 moves along the production line from its initial position, nitrogen is continuously or intermittently injected into the product. The longer nitrogen injection time results in a higher nitrogen content in the product, which is more conducive to product preservation.
Claims
1. A nitrogen-filled preservation packaging device for storage, characterized in that, include: Support frame (1), mobile nitrogen filling mechanism (2) and detection mechanism (3); The mobile nitrogen filling mechanism (2) includes a track frame (21), a slider (22), a nitrogen filling head (23), and a first electric push rod (24). The track frame (21) is connected to the support frame (1), the slider (22) is slidably connected to the track frame (21), the nitrogen filling head (23) is fixed on the slider (22), and the first electric push rod (24) is fixed on one side of the track frame (21). The output shaft of the electric push rod is connected to the slider (22). The detection mechanism (3) is used to detect the start and stop positions of inflation.
2. The nitrogen-filled preservation packaging device for storage according to claim 1, characterized in that, The detection mechanism (3) includes a mounting slot (31), a front detection head (32) and a rear detection head (33). The mounting slot (31) is fixed on the support frame (1), and the front detection head (32) and the rear detection head (33) are installed on one side of the mounting slot (31).
3. A nitrogen-filled preservation packaging device for storage according to claim 2, characterized in that, Two adjustment components are provided on the mounting slot (31), and the two adjustment components are used to adjust the positions of the front detection head (32) and the rear detection head (33) respectively.
4. A nitrogen-filled preservation packaging device for storage according to claim 3, characterized in that, The adjustment assembly includes a movable block (34) that is slidably installed in the mounting groove (31), an adjustment screw (35) that is installed on the side of the mounting groove (31), one end of the adjustment screw (35) that is rotatably connected to the movable block (34), and the movable block (34) that is fixedly connected to the front detection head (32) or the rear detection head (33).
5. A nitrogen-filled preservation packaging device for storage according to claim 1, characterized in that, An electric control valve (5) is installed on the support frame (1), and one end of the electric control valve (5) is connected to the nitrogen filling head (23) through a corrugated hose (25).
6. A nitrogen-filled preservation packaging device for storage according to claim 1, characterized in that, The second electric push rod (4) is installed on the support frame (1), and the bottom end of the second electric push rod (4) is fixedly connected to the track frame (21).