An adjustable vacuum nitrogen filling device

Abstract

This utility model relates to the field of food preservation technology, and in particular to an adjustable vacuum nitrogen filling device, including a frame and a mounting frame. The mounting frame is fixedly installed on one side of the frame, and a buffer tank is fixedly installed inside the mounting frame. A connecting pipe is connected to the upper end of the buffer tank, and an inflation pipe is connected to the lower end of the buffer tank. A regulating valve is integrated in the middle section of the inflation pipe, and the outlet of the inflation pipe is composed of multiple sets of micropores with different opening directions. This utility model uses the buffer tank as a pressure buffer container for temporary storage and pressure stabilization of nitrogen. During output, the nitrogen flow rate is precisely controlled by dynamically adjusting the opening of the regulating valve. The multi-directional micropore structure at the outlet of the inflation pipe can form a diffused flow field, allowing nitrogen to fill the packaging can cavity uniformly and at a low speed, effectively reducing airflow impact and avoiding physical damage to thin or crispy foods caused by direct airflow, thereby ensuring the quality stability of the food inside the can.

Description

Technical Field

[0001] This utility model relates to the field of food preservation technology, and in particular to an adjustable vacuum nitrogen filling device. Background Technology

[0002] In the process of mass food production, in order to extend the shelf life of food, food packaging cans need to be vacuum-filled with nitrogen after vacuum treatment to ensure the quality of the food inside the cans.

[0003] Currently, nitrogen filling for food typically involves directly injecting nitrogen gas into the packaging can. However, for lighter or more brittle foods, the direct blowing of the gas into the can may cause damage and affect the quality of the finished canned food.

[0004] Therefore, to address the above issues, an adjustable vacuum nitrogen filling device can be designed. This device integrates an airflow buffer to buffer and disperse the airflow, and uses a regulating valve to dynamically adjust the airflow rate. This effectively avoids physical damage to the items caused by direct airflow impact, thereby ensuring the integrity and quality stability of the food inside the can. Utility Model Content

[0005] To overcome the current problem that nitrogen filling operations for food typically involve directly filling the packaging can with nitrogen gas, which may cause damage to the contents of the can by the direct blowing of the gas into the can, especially for lighter or crispier foods, thus affecting the quality of the finished canned food.

[0006] The technical solution of this utility model is as follows: an adjustable vacuum nitrogen filling device, including a frame, a mounting frame, a lifting mechanism and a clamping mechanism. The lifting mechanism is located inside the frame, the clamping mechanism is located inside the lifting mechanism, the mounting frame is fixedly installed on one side of the frame, a buffer tank is fixedly installed inside the mounting frame, a connecting pipe is connected to the upper end of the buffer tank, an inflation pipe is connected to the lower end of the buffer tank, an adjusting valve is integrated in the middle section of the inflation pipe, and the outlet of the inflation pipe is composed of multiple sets of micropores with different opening directions.

[0007] Preferably, a clamping mechanism can be used to clamp and fix the food packaging can, and a lifting mechanism can be used to drive the food packaging can fixed by the clamping mechanism to rise and fall stably, thereby moving the packaging can to the working area of ​​the inflation pipe. A connecting pipe can be used to connect to an external vacuum nitrogen pump to provide nitrogen to the buffer tank. The nitrogen is temporarily stored and buffered in the buffer tank, and quantitatively injected into the interior of the packaging can through a regulating valve according to the actual situation. The multiple sets of micro-holes with different opening directions at the outlet of the inflation pipe can allow nitrogen to enter the cavity in a diffuse and uniform manner, which can quickly and evenly fill the entire space, while further reducing the impact force of the airflow and avoiding mechanical damage to thin or crispy foods caused by the airflow directly blowing on them, ultimately ensuring the quality stability of the food inside the can.

[0008] Preferably, the lifting mechanism includes a telescopic rod and a mounting box. The telescopic rod is located inside the frame, and the mounting box is fixedly installed on the output end of the telescopic rod. The output end of the telescopic rod passes through the frame and is slidably connected to it.

[0009] Preferably, the lifting mechanism includes two sets of guide rods symmetrically installed at the lower end of the mounting box, the guide rods passing through the frame and slidably connected thereto.

[0010] Preferably, the clamping mechanism includes an internal threaded slider, a bidirectional lead screw, and a drive motor. Two sets of internal threaded sliders are provided, and the two sets of internal threaded sliders are symmetrically slidably connected to the inside of the mounting box. The bidirectional lead screw is rotatably connected to the inside of the mounting box, passes through the internal threaded slider, and is threadedly connected to it. The drive motor is fixedly installed on one side of the mounting box, and the output end of the drive motor is fixedly connected to the bidirectional lead screw.

[0011] Preferably, the clamping mechanism includes a clamping block and a rubber pad. The clamping block is fixedly installed on the upper end of the internal threaded slider. A V-shaped notch is provided on one side of the clamping block, and a rubber pad is provided on the side wall of the V-shaped notch.

[0012] Preferably, an electrical control box is installed on the front side of the frame, and a protective cover is hinged to the upper end of the electrical control box. The protective cover is located on the periphery of the operating area of ​​the electrical control box.

[0013] The beneficial effects of this utility model are:

[0014] The nitrogen is supplied by an external vacuum nitrogen pump connected to a pipeline. The nitrogen is first introduced into a buffer tank, which serves as a pressure buffer container for temporary storage and pressure stabilization of the nitrogen. The nitrogen is then discharged through an inflation pipe, and the flow rate is precisely controlled by a regulating valve through dynamic adjustment. The inflation pipe outlet has a multi-directional microporous structure that forms a diffused flow field, allowing the nitrogen to fill the packaging can cavity uniformly and at a low speed. This effectively reduces airflow impact and prevents physical damage to thin or crispy foods caused by direct airflow, thus ensuring the quality stability of the food inside the can. Attached Figure Description

[0015] Figure 1 The diagram shown is a first three-dimensional structural schematic of the adjustable vacuum nitrogen filling device of this utility model.

[0016] Figure 2 The diagram shown is a second three-dimensional structural schematic of the adjustable vacuum nitrogen filling device of this utility model.

[0017] Figure 3 The diagram shown is a three-dimensional structural representation of the buffer tank of the adjustable vacuum nitrogen filling device of this utility model.

[0018] Figure 4The diagram shown is a three-dimensional cross-sectional view of the mounting box of the adjustable vacuum nitrogen filling device of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Mounting bracket; 201. Buffer tank; 202. Inflation pipe; 203. Connecting pipe; 204. Regulating valve; 301. Telescopic rod; 302. Mounting box; 303. Guide rod; 401. Internal threaded slider; 402. Bidirectional lead screw; 403. Drive motor; 404. Clamping block; 405. Rubber pad; 5. Electrical control box; 501. Protective cover. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1 and Figure 3 This utility model provides an embodiment: an adjustable vacuum nitrogen filling device, including a frame 1, a mounting frame 2, a lifting mechanism, and a clamping mechanism. The lifting mechanism is disposed inside the frame 1, and the clamping mechanism is disposed inside the lifting mechanism. The mounting frame 2 is fixedly installed on one side of the frame 1. A buffer tank 201 is fixedly installed inside the mounting frame 2. A connecting pipe 203 is connected to the upper end of the buffer tank 201, and an inflation pipe 202 is connected to the lower end of the buffer tank 201. A regulating valve 204 is integrated in the middle section of the inflation pipe 202, and the outlet of the inflation pipe 202 is composed of multiple sets of microholes with different opening directions. By setting the clamping mechanism, food packaging cans can be clamped and fixed. By setting the lifting mechanism... The structure can drive the food packaging can, which is fixed by the clamping mechanism, to rise and fall stably, thereby moving the packaging can to the working area of ​​the inflation pipe 202. By setting the connecting pipe 203, an external vacuum nitrogen pump can be connected to provide nitrogen to the buffer tank 201. The nitrogen is temporarily stored and buffered in the buffer tank 201, and quantitatively injected into the interior of the packaging can through the regulating valve 204 according to the actual situation. The multiple sets of micro-holes with different opening directions at the outlet of the inflation pipe 202 can allow nitrogen to enter the cavity in a diffuse and uniform manner, which can quickly and evenly fill the entire space, while further reducing the impact force of the airflow and avoiding mechanical damage to thin or crispy foods caused by the airflow directly blowing on them, ultimately ensuring the quality stability of the food inside the can.

[0022] Please see Figure 1 and Figure 2In this embodiment, the lifting mechanism includes a telescopic rod 301 and a mounting box 302. The telescopic rod 301 is disposed inside the frame 1, and the mounting box 302 is fixedly installed on the output end of the telescopic rod 301. The output end of the telescopic rod 301 passes through the frame 1 and is slidably connected to it. The lifting mechanism includes two sets of guide rods 303 symmetrically installed at the lower end of the mounting box 302. The guide rods 303 pass through the frame 1 and are slidably connected to it. Through the mounting box 302 bearing clamping mechanism, when the telescopic rod 301 drives the mounting box 302 to vertical displacement, the guide rods 303 constitute a secondary guiding mechanism, effectively improving the motion stability and positioning accuracy of the lifting process. An electrical control box 5 is provided on the front side of the frame 1. A protective cover 501 is hinged to the upper end of the electrical control box 5. The protective cover 501 is located outside the operating area of ​​the electrical control box 5. The electrical control box 5 is used to operate the entire device, and the protective cover 501 can prevent the electrical control box 5 from being misoperated.

[0023] Please see Figure 2 and Figure 4 In this embodiment, the clamping mechanism includes an internally threaded slider 401, a bidirectional lead screw 402, and a drive motor 403. Two sets of internally threaded sliders 401 are symmetrically slidably connected inside the mounting box 302. The bidirectional lead screw 402 is rotatably connected inside the mounting box 302, passing through and threadedly connecting to the internally threaded slider 401. The drive motor 403 is fixedly mounted on one side of the mounting box 302, and its output end is fixedly connected to the bidirectional lead screw 402. The clamping mechanism includes a clamping block 404 and a rubber pad. 405. Clamping block 404 is fixedly installed on the upper end of internal thread slider 401. A V-shaped notch is opened on one side of clamping block 404, and a rubber pad 405 is provided on the side wall of the V-shaped notch. By setting a drive motor 403 to drive the bidirectional lead screw 402 to rotate, the two sets of internal thread sliders 401 can be driven to slide stably and synchronously in opposite directions inside the mounting box 302, thereby adjusting the distance between the two sets of clamping blocks 404 to clamp and fix packaging cans of different specifications. By setting the rubber pad 405 to contact with the outer wall of the packaging can, the friction can be increased to ensure clamping stability and prevent wear.

[0024] During operation, the packaging can is first placed between two sets of clamping blocks 404. The drive motor 403 drives the bidirectional lead screw 402 to rotate, which drives the two sets of internal threaded sliders 401 to slide stably and synchronously in opposite directions inside the mounting box 302, thereby clamping and fixing the packaging can. This can accommodate packaging cans of different specifications. Then, the telescopic rod 301 drives the mounting box 302 to rise vertically and move the packaging can into the inflation station.

[0025] A vacuum nitrogen pump connected to an external pipe 203 supplies nitrogen to the buffer tank 201. The buffer tank 201, as a pressure buffer container, can temporarily store and stabilize nitrogen. According to the actual situation, the nitrogen flow rate can be precisely controlled by the dynamic opening adjustment of the regulating valve 204. The nitrogen is then filled into the packaging can through the inflation pipe 202. The multi-directional microporous structure at the outlet of the inflation pipe 202 can form a diffused airflow distribution, so that the nitrogen fills the packaging can cavity in a uniform and low-speed manner, effectively reducing the impact intensity of the airflow and avoiding mechanical damage to thin or crispy foods caused by direct blowing, ultimately ensuring the quality stability of the food inside the can.

[0026] Through the above steps, the buffer tank 201 serves as a pressure buffer container for the temporary storage and pressure stabilization of nitrogen. During output, the nitrogen flow rate is precisely controlled by dynamically adjusting the opening of the regulating valve 204. Combined with the multi-directional microporous structure at the outlet of the filling pipe 202, a diffused flow field is formed, allowing nitrogen to fill the packaging can cavity uniformly and at a low speed. This effectively reduces airflow impact and prevents physical damage to thin or crispy foods caused by direct airflow, thus ensuring the quality stability of the food inside the can. This addresses the current problem where nitrogen filling operations typically involve directly filling the packaging can with nitrogen gas, which can cause damage to thin or crispy foods, affecting the quality of the finished canned food.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An adjustable vacuum nitrogen-charging device comprising a frame (1), characterized in that: Mounting frame (2), lifting mechanism and clamping mechanism. The lifting mechanism is located inside the frame (1). The clamping mechanism is located inside the lifting mechanism. Mounting frame (2) is fixedly installed on one side of the frame (1). Buffer tank (201) is fixedly installed inside mounting frame (2). Connecting pipe (203) is connected through the upper end of buffer tank (201). Inflation pipe (202) is connected through the lower end of buffer tank (201). Adjusting valve (204) is integrated in the middle section of inflation pipe (202). The outlet of inflation pipe (202) is composed of multiple sets of micropores with different opening directions.

2. A device for adjustable vacuum nitrogen-charging according to claim 1, characterized in that: The lifting mechanism includes a telescopic rod (301) and a mounting box (302). The telescopic rod (301) is located inside the frame (1), and the mounting box (302) is fixedly installed at the output end of the telescopic rod (301). The output end of the telescopic rod (301) passes through the frame (1) and is slidably connected to it.

3. A device for adjustable vacuum nitrogen-charging according to claim 2, characterized in that: The lifting mechanism includes two sets of guide rods (303) symmetrically installed at the lower end of the mounting box (302). The guide rods (303) pass through the frame (1) and are slidably connected to it.

4. The adjustable vacuum nitrogen-charged device of claim 2, wherein: The clamping mechanism includes an internal threaded slider (401), a bidirectional lead screw (402), and a drive motor (403). There are two sets of internal threaded sliders (401), which are symmetrically slidably connected inside the mounting box (302). The bidirectional lead screw (402) is rotatably connected inside the mounting box (302). The bidirectional lead screw (402) passes through the internal threaded slider (401) and is threadedly connected to it. The drive motor (403) is fixedly installed on one side of the mounting box (302), and the output end of the drive motor (403) is fixedly connected to the bidirectional lead screw (402).

5. The adjustable vacuum nitrogen-filling device according to claim 4, characterized in that: The clamping mechanism includes a clamping block (404) and a rubber pad (405). The clamping block (404) is fixedly installed on the upper end of the internal thread slider (401). A V-shaped notch is provided on one side of the clamping block (404), and a rubber pad (405) is provided on the side wall of the V-shaped notch.

6. The adjustable vacuum nitrogen-charged device of claim 1, wherein: An electrical control box (5) is provided on the front side of the frame (1). A protective cover (501) is hinged to the upper end of the electrical control box (5). The protective cover (501) is located outside the operating area of ​​the electrical control box (5).

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