Nitrogen charging device

Abstract

The nitrogen charging device comprises a driving shaft, a gas distribution disc, a rotary gas distribution assembly, a nitrogen charging part and a control part, the gas distribution disc, the rotary gas distribution assembly, the nitrogen charging part and the control part are coaxially arranged with the driving shaft, the rotary gas distribution assembly comprises a fixed gas distribution connector and a movable gas distribution connector which are in running fit, and the movable gas distribution connector, the nitrogen charging part and the control part synchronously rotate along with the driving shaft. The fixed gas distribution connector and the gas distribution disc are fixedly arranged, the nitrogen charging part and the control part respectively comprise a plurality of charging nozzles and mechanical valves which are uniformly distributed in the circumferential direction, the fixed gas distribution connector is provided with a gas inlet communicated with an external nitrogen cylinder, and the movable gas distribution connector is provided with a plurality of gas outlets. The air outlets, the mechanical valves and the inflation nozzles are in one-to-one correspondence and are sequentially communicated, the air distribution disc is provided with a trigger part matched with switches of the mechanical valves, and the inflation air path is conducted when the mechanical valves rotate to the trigger part. The device not only can reduce the loss of nitrogen, but also can avoid the generation of abrasive dust, and is also suitable for industries with higher requirements on cleanliness.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic packaging technical field especially, relate to a nitrogen filling device. BACKGROUND

[0002] Nitrogen filling is to replace air with nitrogen, so that the material in the bottle does not contact with air to cause oxidation and deterioration, and is widely used in many industries. Generally, liquid filled in a bottle needs to be treated by nitrogen filling through a nitrogen filling device installed on the bottle inlet star wheel part. When the bottle enters the bottle inlet star wheel part, the gas nozzle on the nitrogen filling device is aligned with the bottle mouth for nitrogen filling treatment. In order to avoid collision with the bottle, a certain distance is required between the outlet of the gas nozzle and the bottle mouth. Since the gas nozzle is always in the state of filling gas, it will cause more nitrogen loss during the nitrogen filling process, resulting in waste.

[0003] The utility model discloses a kind of rotary automatic lifting nitrogen filling devices, by being set into liftable structure gas nozzle, using the cam of top, so that gas nozzle can be inserted into bottle body, to reduce nitrogen loss. This way is suitable for general industry, but for some such as daily chemical food industry, the cleanliness of filling environment is required higher, and this kind of packaging needs to realize clean and non-pollution, this gas nozzle extends into bottle The mode is obviously not suitable, repeated lifting of gas nozzle will inevitably produce some abrasion, therefore, the structure of original nitrogen filling device needs to be optimized. UTILITY MODEL CONTENT

[0004] The utility model aims at the deficiency of prior art and provides a kind of nitrogen filling device, which can reduce nitrogen loss, avoid abrasion and be suitable for industries with high cleanliness requirements.

[0005] The technical scheme of the utility model achieves the purpose of the utility model is:

[0006] A nitrogen filling device includes a driving shaft, a gas distribution disc coaxially arranged with the driving shaft, a rotating gas distribution assembly, a nitrogen filling part and a control part. The rotating gas distribution assembly includes a rotatingly matched fixed gas distribution connector and a movable gas distribution connector. The movable gas distribution connector, the nitrogen filling part and the control part rotate synchronously with the driving shaft. The fixed gas distribution connector and the gas distribution disc are fixedly arranged. The nitrogen filling part and the control part each include a plurality of gas nozzles and mechanical valves uniformly distributed in the circumferential direction. The fixed gas distribution connector is provided with a gas inlet connected to an external nitrogen cylinder. The movable gas distribution connector is provided with a plurality of gas outlets. The gas outlets, the mechanical valves and the gas nozzles are one-to-one corresponding and sequentially connected. The gas distribution disc is provided with a trigger part matched with the switch of the mechanical valve. When the mechanical valve rotates to the trigger part, the gas path is turned on.

[0007] Further, the top of the main shaft is coaxially provided with a mounting disc, the inflation nozzle is fixed to the lower end surface of the mounting disc, and a plurality of support plates corresponding to the mechanical valves are uniformly arranged on the upper end surface of the mounting disc in the circumferential direction.

[0008] Further, the support plates are arranged in a one-to-one staggered manner between adjacent inflation nozzles.

[0009] Further, the top of the mounting disc is fixed with a connecting sleeve, and the dynamic gas distribution connector is fixed to the mounting disc through the connecting sleeve.

[0010] Further, the bottom of the connecting sleeve is provided with an annular flange, and the outer peripheral surface close to the top is provided with a notch penetrating through the connecting sleeve in the radial direction, and mounting holes are arranged on the top of the connecting sleeve and the annular flange overlapping region.

[0011] Further, the gas distribution disc includes an annular plate and an arc-shaped plate coaxially arranged on the outer periphery of the annular plate, the arc-shaped plate and the annular plate are located on the same horizontal plane to form a triggering part, the switch of the mechanical valve is arranged on the top and located in the annular interval of the arc-shaped plate, and is higher than the arc-shaped plate in the natural state, so that when the switch of the mechanical valve is in contact with the arc-shaped plate, the mechanical valve is triggered to open and the inflation gas path is conducted.

[0012] Further, the two ends of the arc-shaped plate are provided with upwardly inclined extension parts.

[0013] Further, the top of the fixed gas distribution connector is fixed with a fixed plate, the annular plate is uniformly provided with a plurality of arc-shaped through grooves in the circumferential direction, the bottom of the fixed plate is vertically fixed with a hanging rod corresponding to the arc-shaped groove, and the bottom of the hanging rod is inserted into the arc-shaped through groove and is screwed with a locking bolt.

[0014] Further, the bottom of the fixed plate is fixed with a hanging bracket uniformly distributed in the circumferential direction of the main shaft, and a cover is fixed to the hanging bracket, and the cover extends to the inflation nozzle.

[0015] By adopting the above technical scheme, the utility model has the following beneficial effects:

[0016] (1) The utility model discloses a nitrogen inflation part and a control part are integrated on the same mounting disc, and the structure is simplified, and the coaxial mounting on the main shaft is realized, so that the structure is simple.

[0017] (2) The utility model discloses a nitrogen inflation part and a control part are integrated on the same mounting disc, and the structure is simplified, and the coaxial mounting on the main shaft is realized, so that the structure is simple.

[0018] (3) The utility model discloses a support plate and the inflation nozzle are set in the dislocation to provide more installation space for the gas path hose of connecting mechanical valve and inflation nozzle, and the assembly is convenient.

[0019] (4) The utility model discloses a connecting sleeve as transition part, realizing that dynamic and matched gas connector always keeps relative position fixed with mechanical valve and inflation nozzle, and the structure is simple.

[0020] (5) The utility model discloses the bottom of connecting sleeve can be conveniently fixed with the mounting disc below through bolt connection through the flange with installation hole, and the top is ingeniously set with notch and installation hole, can be directly operated at the notch, and is fixed with the dynamic and matched gas connector above through screw through installation hole, and the assembly is convenient and firm.

[0021] (6) The utility model discloses the structure of gas distribution disc, and the relative height of the switch of mechanical valve and arc plate is designed in advance, so that mechanical valve is just pressed down when rotating to the below of arc plate, thereby opening mechanical valve, realizing gas path conductor, and corresponding inflation nozzle is filled with nitrogen, when mechanical valve leaves the interval of arc plate, mechanical valve disconnects the gas path, and effectively reduces the loss of nitrogen.

[0022] (7) The utility model discloses the extension, so that the closing and opening process of the switch of mechanical valve can be more stable, and the mechanical valve enters and leaves the trigger part more stably.

[0023] (8) The utility model discloses the fixed connection of gas distribution disc and fixed gas connector through the suspender, and the circumferential adjustable setting of gas distribution disc is realized through arc through slot, and the assembly debugging is convenient.

[0024] (9) The utility model discloses the shell, effectively protecting the internal structure. DRAWINGS

[0025] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to specific embodiments and combining with the drawings, wherein:

[0026] Fig. 1 It is the perspective view of the utility model;

[0027] Fig. 2 It is the internal structure schematic diagram of the utility model after removing the shell;

[0028] Fig. 3 It is the mounting structure schematic diagram of the mounting disc, connecting sleeve and rotating gas assembly of the utility model;

[0029] Fig. 4 It is the structure schematic diagram of the gas distribution disc of the utility model.

[0030] The reference signs in the drawings are:

[0031] 1. Drive shaft, 2. Gas distribution plate, 2-1. Annular plate, 2-1-1. Arc-shaped through groove, 2-2. Arc-shaped plate, 2-2-1. Rotary gas distribution assembly, 3. Fixed gas distribution connector, 3-1. Inlet, 3-1-1. Dynamic gas distribution connector, 3-2. Outlet, 3-2-1. Nitrogen charging section, 4. Gas charging nozzle, 4-1. Control section, 5. Mechanical valve, 5-1. Mounting plate, 6. Support plate, 7. Connecting sleeve, 8. Annular flange, 8-1. Notch, 8-2. Fixing plate, 9. Hanger rod, 10. Hanger, 11. Cover, 12. Detailed Implementation

[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0033] (Example 1)

[0034] like Figs. 1 to 4 The nitrogen filling device shown includes a drive shaft 1 that rotates around itself via an external drive structure, a gas distribution plate 2 coaxially arranged with the drive shaft 1, a rotary gas distribution assembly 3, a nitrogen filling section 4, and a control section 5. The rotary gas distribution assembly 3 includes a fixed gas distribution connector 3-1 and a movable gas distribution connector 3-2 that are rotatably coupled. The movable gas distribution connector 3-2, the nitrogen filling section 4, and the control section 5 rotate synchronously with the drive shaft 1. The fixed gas distribution connector 3-1 and the gas distribution plate 2 are fixedly arranged. The nitrogen filling section 4 includes multiple filling nozzles 4- evenly distributed circumferentially. 1. The control unit 5 includes mechanical valves 5-1 that are evenly distributed along the circumference in the same number as the filling nozzles 4-1. The fixed gas distribution connector 3-1 is provided with an air inlet 3-1-1 that connects to an external nitrogen cylinder. The dynamic gas distribution connector 3-2 is provided with an air outlet 3-2-1 that is the same number as the filling nozzles 4-1. The air outlets 3-2-1, mechanical valves 5-1 and filling nozzles 4-1 correspond one-to-one and are connected in sequence. The gas distribution plate 2 is provided with a trigger part that is adapted to the switch of the mechanical valves 5-1. When the mechanical valves 5-1 are rotated to the trigger part, the filling gas path is opened.

[0035] Specifically, a mounting plate 6 is coaxially fixed to the top of the drive shaft 1, and an air inlet 4-1 is fixed to the lower end face of the mounting plate 6. Multiple support plates 7, corresponding to the mechanical valve 5-1, are evenly arranged circumferentially on the upper end face of the mounting plate 6. The mechanical valve 5-1 is fixed above the mounting plate 6 via the support plates 7. To facilitate air circuit design, in this embodiment, the support plates 7 are positioned between adjacent air inlets 4-1, offset from the air inlets 4-1, thereby providing more installation space for the air hose connecting the mechanical valve 5-1 and the air inlet 4-1, facilitating assembly.

[0036] The top of the mounting disc 6 is provided with a connecting sleeve 8, the bottom of the connecting sleeve 8 is provided with an annular flange 8-1, and the outer circumferential surface close to the top is provided with a notch 8-2 penetrating the connecting sleeve 8 in the radial direction, and the top of the connecting sleeve 8 and the notch 8-2 overlap, and the annular flange 8-1 is provided with mounting holes. The connecting sleeve 8 is fixed on the mounting disc 6 by screwing through the mounting holes on the annular flange 8-1 and tightening on the mounting disc 6, and the movable gas joint 3-2 is fixed on the connecting sleeve 8 by screwing through the corresponding mounting holes and tightening. The connecting sleeve 8 can be conveniently fixed with the mounting disc 6 below by bolts through the flange with mounting holes, and the notch 8-2 is cleverly arranged at the top, so that the rotating screw can be directly operated at the notch 8-2, and the assembly is convenient and the connection is firm.

[0037] The top of the fixed gas joint 3-1 is fixedly connected with a fixed plate 9, the bottom of the fixed plate 9 is vertically fixedly connected with a plurality of evenly arranged hangers 10 of the fixed gas joint 3-1, and the gas distribution disc 2 comprises an annular plate 2-1 and an arc-shaped plate 2-2 coaxially arranged on the outer periphery of the annular plate 2-1. The arc-shaped plate 2-2 is located on the same horizontal plane as the annular plate 2-1, and forms a triggering part. The annular plate 2-1 is uniformly provided with a plurality of arc-shaped through grooves 2-1-1 in the circumferential direction, the bottom of the hanger 10 is inserted into the arc-shaped through groove 2-1-1 and is screwed with a locking bolt, so that the circumferential direction of the gas distribution disc 2 can be adjusted and arranged, and assembly and debugging are facilitated. The switch of the mechanical valve 5-1 is arranged at the top and located in the annular interval of the arc-shaped plate 2-2, and is higher than the arc-shaped plate 2-2 in the natural state, so that when the switch of the mechanical valve 5-1 is in contact with the arc-shaped plate 2-2, the mechanical valve 5-1 is triggered to open and the inflation gas path is conducted. The two ends of the arc-shaped plate 2-2 are provided with upwardly inclined extension parts 2-2-1, so that the closing and opening process of the switch of the mechanical valve 5-1 can be more stable, and the mechanical valve 5-1 can enter and leave the triggering part more stably.

[0038] The bottom of the fixed plate 9 is also fixedly connected with a plurality of hangers 11 evenly distributed in the circumferential direction of the driving shaft 1, the hangers 11 are fixedly connected with a cover 12, and the cover 12 extends to the inflation nozzle 4-1, thereby effectively protecting the internal structure.

[0039] The utility model discloses a mechanical valve 5-1 is additionally arranged on the nitrogen inflation gas path of each inflation nozzle 4-1, and a gas distribution disc 2 is arranged to trigger and sense, so that nitrogen is filled in the specified position, the inflation gas path is disconnected in other positions, nitrogen loss is reduced, and grinding dust can be avoided, thereby meeting the use of industries with higher cleanliness requirements.

[0040] The above-described specific embodiments further specifically describe the purposes, technical solutions and beneficial effects of the present application, and it should be understood that the above-described specific embodiments are merely examples of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A nitrogen charging device, characterized by: The application relates to a nitrogen filling device, which comprises a driving shaft, a gas distribution disc coaxially arranged with the driving shaft, a rotating gas distribution assembly, a nitrogen filling part and a control part.

2. A nitrogen filling device according to claim 1, characterized in that: The top of the driving shaft is coaxially fixed with a mounting disc, the gas filling mouths are fixed to the lower end surface of the mounting disc, the upper end surface of the mounting disc is uniformly provided with a plurality of support plates corresponding to the mechanical valves in the circumferential direction, and the mechanical valves are fixed above the mounting disc through the support plates.

3. A nitrogen filling apparatus according to claim 2, wherein: The support plates are arranged in a one-to-one staggered mode between the adjacent gas filling mouths.

4. A nitrogen filling apparatus according to claim 2, wherein: The top of the mounting disc is fixed with a connecting sleeve, and the dynamic gas distribution joint is fixedly connected with the mounting disc through the connecting sleeve.

5. A nitrogen filling apparatus according to claim 4, wherein: The bottom of the connecting sleeve is provided with an annular flange, and the outer circumferential surface close to the top is provided with a notch penetrating through the connecting sleeve in the radial direction, and the top of the connecting sleeve and the annular flange are both provided with mounting holes in the overlapping area of the notch.

6. A nitrogen filling apparatus according to claim 1, wherein: The gas distribution disc comprises an annular plate and an arc-shaped plate coaxially arranged on the outer periphery of the annular plate, the arc-shaped plate and the annular plate are located on the same horizontal plane to form a trigger part, the switch of the mechanical valve is arranged on the top and located in the annular interval of the arc-shaped plate, and the switch is higher than the arc-shaped plate in the natural state, so that the switch of the mechanical valve is in contact with the arc-shaped plate to trigger the mechanical valve to open and conduct the gas filling gas path.

7. A nitrogen filling apparatus according to claim 6, wherein: The two ends of the arc-shaped plate are provided with upwardly inclined extension parts.

8. A nitrogen filling apparatus according to claim 6, wherein: The top of the fixed plate is fixedly connected with a fixed plate, the annular plate is uniformly provided with a plurality of arc-shaped through grooves in the circumferential direction, the bottom of the fixed plate is vertically fixedly connected with a hanger corresponding to the arc-shaped groove, and the bottom of the hanger is inserted into the arc-shaped through groove and is screw-tightly fastened with a locking bolt.

9. A nitrogen filling apparatus according to claim 8, wherein: The bottom of the fixed plate is fixedly connected with a hanger uniformly distributed in the circumferential direction of the driving shaft, the hanger is fixedly connected with a cover, and the cover extends to the gas filling mouths.

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