Nitrogen charging device

Abstract

The utility model discloses a nitrogen charging device which comprises a supporting structure and a nitrogen charging structure. The supporting structure comprises a fixing support and a fixing plate arranged on the fixing support. The nitrogen charging structure comprises a first nitrogen charging pipeline and a second nitrogen charging pipeline which are both arranged on the fixing plate. One ends of the first nitrogen charging pipeline and the second nitrogen charging pipeline are respectively provided with a nitrogen charging inlet, and the other ends are respectively provided with a nitrogen charging needle. The nitrogen charging structure adopts a structure that double pipelines are arranged in parallel, and each nitrogen charging pipeline is provided with a plurality of nitrogen charging needle heads with preset deflection angles, so that full nitrogen charging for the medicine bottles is realized, the nitrogen charging efficiency is improved, and the uniformity of nitrogen charging is ensured; meanwhile, by forming the adjusting holes in the stand columns, the height position of the nitrogen charging pipeline can be adjusted according to actual needs, and the applicability and reliability of the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas filling technical field, in particular to a nitrogen filling device. BACKGROUND

[0002] In the field of semiconductor packaging, nitrogen filling is an important process step in product manufacturing process.

[0003] The existing nitrogen filling device usually adopts single pipe design, and this design has multiple technical defects in actual application.

[0004] Firstly, the nitrogen filling device with single pipe structure has uneven gas distribution when carrying out nitrogen filling operation, resulting in large difference in product nitrogen filling effect.

[0005] Secondly, the fixing structure of the existing nitrogen filling device is relatively complex, and the installation and adjustment are inconvenient, which increases the process difficulty in production process.

[0006] In addition, due to the lack of effective positioning structure, the equipment is prone to position deviation during use, which affects the accuracy and stability of nitrogen filling.

[0007] The existing nitrogen filling device also has the problem of inaccurate gas flow control, which is caused by unreasonable structure design of the nitrogen filling pipeline.

[0008] These technical defects significantly affect the efficiency and quality of the nitrogen filling process. UTILITY MODEL CONTENTS

[0009] The utility model provides a nitrogen filling device, which aims to provide a simple structure, which is beneficial to solve the problem of high nitrogen filling amount after low quality product is installed and added amount.

[0010] In order to achieve the above purpose, the utility model provides a nitrogen filling device, which comprises:

[0011] Supporting structure, the supporting structure includes fixed support and fixed plate arranged on the fixed support;

[0012] Nitrogen filling structure, the nitrogen filling structure includes first nitrogen filling pipeline and second nitrogen filling pipeline, and the first nitrogen filling pipeline and the second nitrogen filling pipeline are arranged on the fixed plate;

[0013] One end of the first nitrogen filling pipeline and the second nitrogen filling pipeline is respectively provided with a nitrogen inlet, and the other end is respectively provided with a nitrogen needle.

[0014] Optionally, the fixed support includes a base and a stand column fixed on the base.

[0015] Optionally, the fixed plate is vertically arranged on the stand column.

[0016] Optionally, the fixing plate is further provided with a buckle structure for fixing the first nitrogen filling pipeline and the second nitrogen filling pipeline, and the first nitrogen filling pipeline and the second nitrogen filling pipeline are rotatably connected with the buckle structure.

[0017] Optionally, the stand is provided with an adjusting hole for adjusting the height position of the first nitrogen filling pipeline and the second nitrogen filling pipeline.

[0018] Optionally, the device further comprises a first locking knob and a second locking knob, the first locking knob is used for fixing the first nitrogen filling pipeline and the second nitrogen filling pipeline on the buckle structure, and the second locking knob is connected with the buckle structure through the adjusting hole and is used for adjusting the height position of the first nitrogen filling pipeline and the second nitrogen filling pipeline.

[0019] Optionally, the inner diameter of the nitrogen filling needle is smaller than the inner diameter of the corresponding nitrogen filling pipeline.

[0020] Optionally, the first nitrogen filling pipeline and the second nitrogen filling pipeline are arranged in parallel.

[0021] Optionally, the deflection angle of the nitrogen filling needle relative to the vertical direction is 15°-45°.

[0022] Optionally, the spacing between the nitrogen filling needle of the first nitrogen filling pipeline and the nitrogen filling needle of the second nitrogen filling pipeline is 6-10 times the inner diameter of the nitrogen filling needle.

[0023] Compared with the prior art, the utility model discloses a design scheme of support structure and nitrogen filling structure, through setting up two nitrogen filling pipelines on the fixing plate, one end of two nitrogen filling pipelines is provided with nitrogen filling inlet respectively, and the other end is provided with nitrogen filling needle respectively, realize the function of double pipeline simultaneous nitrogen filling, greatly improve the nitrogen filling efficiency.

[0024] Further, through setting up buckle structure and adjusting hole on the fixing plate, the position of the nitrogen filling pipeline can be conveniently adjusted, and the applicability and operation convenience of the device are improved. The design that the inner diameter of the nitrogen filling needle is smaller than the inner diameter of the nitrogen filling pipeline can improve the accuracy and stability of nitrogen filling. The spacing between the two nitrogen filling needles is reasonably designed, which ensures the uniformity of nitrogen filling and further improves the nitrogen filling effect. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the three-dimensional structure schematic of the nitrogen filling device in the embodiment of the utility model Figure 1 ;

[0026] Figure 2 It is the three-dimensional structure schematic of the nitrogen filling device in the embodiment of the utility model Figure 2 ;

[0027] Figure 3is the front view of the nitrogen filling device in the embodiment of the utility model;

[0028] Figure 4 is the bottom view of the buckle structure in the embodiment of the utility model;

[0029] Figure 5 is the whole structure schematic diagram of the nitrogen filling device installed in the filling and stoppering mechanism in the embodiment of the utility model Figure 1 ;

[0030] Figure 6 is the three-dimensional structure schematic diagram of the nitrogen filling device installed in the filling and stoppering mechanism in the embodiment of the utility model Figure 2 ;

[0031] Figure 7 is the structure schematic diagram of the working position of the nitrogen filling device in the embodiment of the utility model.

[0032] In the drawing, 1, first nitrogen filling pipeline;2, first locking knob;3, nitrogen pipeline cover plate;4, nitrogen filling pipeline fixing seat;5, adjusting hole;6, fixed support;7, second locking knob;8, second nitrogen filling pipeline;9, mounting hole;10, nitrogen filling needle;11, first nitrogen inlet;12, second nitrogen inlet;13, filling and stoppering mechanism;14, medicine bottle to be filled;15, nest plate conveying mechanism;16, rubber plug conveying track;17, filling needle;18, stoppering rod. DETAILED DESCRIPTION

[0033] The utility model scheme will be described below in conjunction with the schematic diagram, wherein the preferred embodiment of the utility model is shown, and it should be understood that the utility model described herein can be modified by the person skilled in the art, and the advantageous effects of the utility model can still be achieved. Therefore, the following description should be understood as extensive knowledge for the person skilled in the art, and not as a limitation of the utility model.

[0034] The serial number of the component in this paper, for example, "first", "second" and the like, is only used to distinguish the described object, and does not have any order or technical meaning. And the "connection" and "coupling" in the present application include direct and indirect connection (coupling) without special instructions. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0035] In the present application, unless otherwise expressly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0036] The present application will be described in more detail by way of example with reference to the accompanying drawings. According to the following description, the advantages and features of the present application will be more apparent. It should be noted that the drawings are very simplified and all use non-precise proportions, only for the purpose of facilitating, clarifying and assisting the description of the embodiments of the present application.

[0037] Please refer to Figure 1 - Figure 4 The utility model provides a kind of nitrogen filling device, including support structure and nitrogen filling structure. Among them, the support structure includes fixed support 6 and is set to the fixed plate of fixed support 6. The fixed support 6 includes pedestal and is fixed on the column of pedestal.

[0038] The fixed plate is vertically set on the column, the pedestal can be made of aluminum alloy material, with the characteristics of light weight, high strength;The column can be made of stainless steel material, with good corrosion resistance and mechanical strength.

[0039] One side of the pedestal is provided with two staggered mounting holes 9, for connecting and cooperating with external equipment.

[0040] The nitrogen filling structure includes first nitrogen filling pipeline 1 and second nitrogen filling pipeline 8, and the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8 are arranged on the fixed plate.

[0041] In one specific example, the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8 are both designed in two sections, including a first section and a second section connected at a certain angle with the first section. The two sections are prepared by one-piece bending forming process to ensure smooth inner wall of the pipeline and reduce air flow resistance.

[0042] Specifically, the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8 respectively include first nitrogen filling inlet 11 and second nitrogen filling inlet 12, and the first nitrogen filling inlet 11 and the second nitrogen filling inlet 12 are arranged at one end of the first section, and the nitrogen filling needle 10 is uniformly arranged at one end of the second section away from the first section. The sectional design of nitrogen filling pipeline makes the flow of nitrogen filling gas more smooth, reduces air flow resistance.

[0043] In one specific example, the nitrogen filling pipeline is made of 316L stainless steel material, which has excellent corrosion resistance, good mechanical strength and processing performance. In addition, the 316L stainless steel material also has the characteristics of good surface finish and is not easy to produce particle pollution, which is particularly suitable for gas delivery system.

[0044] In another specific example, the nitrogen filling pipeline can also be made of TC4 titanium alloy material, which has lighter weight and better corrosion resistance than stainless steel. The outer diameter of the nitrogen filling pipeline can be selected as 6mm, 8mm or 10mm specification, and the wall thickness is 1-1.5mm, which can be selected according to the use scene.

[0045] The connection between the nitrogen filling needle 10 and the nitrogen filling pipeline adopts a special sealing structure design.

[0046] Specifically, a sealing nut and a sealing ring assembly are arranged at the connection between the needle and the pipeline, the sealing nut adopts a hexagonal structure, which is convenient to disassemble and assemble, and the sealing ring is made of fluororubber material, which has good temperature resistance and sealing performance.

[0047] In one specific example, the thread specification of the sealing nut is M8x0.75, which adopts a fine tooth design to improve the sealing performance. The cross-sectional shape of the sealing ring is O-shaped or V-shaped, and when the V-shaped sealing ring is selected, the opening is arranged towards the direction of nitrogen gas pressure.

[0048] In another specific example, a stainless steel gasket can also be arranged between the sealing nut and the pipeline to prevent damage caused by direct contact between the nut and the pipeline.

[0049] In addition, in the present embodiment, a plurality of nitrogen filling needles 10 are arranged on each nitrogen filling pipeline. Specifically, the first nitrogen filling pipeline 1 is provided with two nitrogen filling needles 10, and the second nitrogen filling pipeline 8 is provided with two nitrogen filling needles 10, which are used to blow nitrogen into the medicine bottle to be stoppered. At the same time, one nitrogen filling needle 10 is additionally arranged on the nitrogen filling pipeline, which is used to pre-fill nitrogen to the medicine bottle waiting to be stoppered, so as to realize extremely low residual oxygen content.

[0050] When the whole device works normally, the second section of the nitrogen filling pipeline is placed horizontally, the pipeline runs parallel to the ground, and the nitrogen filling needle 10 is not vertically downward, but has a deflection angle relative to the vertical direction, and the deflection angle is 15°-45°, the purpose is to better aim at the medicine bottle mouth, so that the nitrogen can enter the bottle at the best angle, improve the nitrogen filling efficiency and uniformity, and the preferred angle is 30°.

[0051] The fixing plate is provided with a buckle structure for fixing the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8. In the embodiment, the buckle structure includes an upper buckle plate and a lower buckle plate.

[0052] In one specific example, a semicircular groove matching the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8 is arranged at the inner side engagement of the upper buckle plate and the lower buckle plate, and a rubber pad can also be arranged at the inner side to increase friction and prevent pipeline damage.

[0053] In another specific example, a handle design can be added to the buckle structure to facilitate one-handed operation. The surface of the buckle structure is chamfered with a radius R1-R1.5 to eliminate sharp edges and improve operational safety.

[0054] In another specific example, the upper buckle plate and the lower buckle plate are respectively a nitrogen filling pipeline fixing seat 4 and a nitrogen pipeline cover plate 3. Specifically, the nitrogen filling pipeline fixing seat 4 is installed on the fixing plate to support the nitrogen filling pipeline; and the nitrogen pipeline cover plate 3 is arranged above the nitrogen filling pipeline fixing seat 4.

[0055] Please continue to refer to Figure 2 The stand is also provided with an adjustment hole 5 for adjusting the height position of the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8. Specifically, the adjustment hole 5 is an elongated through hole with a scale marked thereon.

[0056] It also includes a first locking knob 2 and a second locking knob 7. The first locking knob 2 is used to fix the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8 on the buckle structure. The first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8 are rotatably connected to the buckle structure.

[0057] Specifically, by adjusting the tightness of the first locking knob 2, the nitrogen filling pipeline can be rotated in the buckle structure, thereby adjusting the angular position of the nitrogen filling needle 10. When the desired angle is adjusted, the nitrogen filling pipeline can be fixed by tightening the first locking knob 2. This adjustable design allows the nitrogen filling needle 10 to be aligned with the optimal nitrogen filling position of the medicine bottle opening, ensuring the nitrogen filling effect.

[0058] The second locking knob 7 is connected to the buckle structure through the adjustment hole 5 and is used to adjust the height position of the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8. By rotating the second locking knob 7, the height position of the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8 can be adjusted; when the desired position is adjusted, the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8 can be fixed at the corresponding height by tightening the second locking knob 7.

[0059] The first locking knob 2 and the second locking knob 7 are designed in a linear structure to facilitate the operator to grasp and adjust.

[0060] The inner diameter of the nitrogen filling needle 10 is smaller than the inner diameter of the corresponding nitrogen filling pipeline. Specifically, the nitrogen filling needle 10 is made of a precisely machined stainless steel capillary tube, with an inner diameter of 0.5-1 mm and an outer diameter of 1.5-2 mm. This structural design can increase the gas flow rate during nitrogen filling, creating a Venturi effect, which is beneficial to improving the efficiency and uniformity of nitrogen filling.

[0061] In one specific example, the nitrogen filling needle 10 can adopt a replaceable design, which facilitates the replacement of different specifications of needles according to different nitrogen filling requirements.

[0062] The first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8 are arranged in parallel, and the center distance between the two pipelines can be adjusted according to actual nitrogen filling requirements.

[0063] The distance between the nitrogen filling needle 10 of the first nitrogen filling pipeline 1 and the nitrogen filling needle 10 of the second nitrogen filling pipeline 8 is 6-10 times the inner diameter of the nitrogen filling needle 10. Both the nitrogen filling coverage and the gas flow interference factors are considered.

[0064] In actual application, when the inner diameter of the nitrogen filling needle 10 is 0.8 mm, the distance between the two needles can be set to 4.8-8 mm. In one specific example, a baffle structure can be arranged between the two nitrogen filling needles 10 to further avoid the mutual interference of the nitrogen filling gas flow.

[0065] The nitrogen filling device provided in the embodiment is mainly applied in a medicine filling production line and is used in cooperation with a filling and stoppering mechanism 13. Please refer to Figure 5 - Figure 7 The filling and stoppering mechanism 13 includes a honeycomb nest plate, a nest plate conveying mechanism 15, a rubber plug conveying track 16, a filling needle 17, and a stoppering rod 18, etc. The honeycomb nest plate is provided with a plurality of positioning holes arranged in an array, for placing and fixing the medicine bottles 14 to be filled. The nest plate conveying mechanism 15 adopts a precise transmission structure and can stably convey the honeycomb nest plate along a predetermined track, ensuring that the medicine bottles remain stable during movement and do not shake or tilt.

[0066] The nitrogen filling device provided in the embodiment is fixedly connected with the filling and stoppering mechanism 13 through the mounting hole 9 arranged on one side of the base. Specifically, the nitrogen filling needles 10 of the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8 are respectively located on both sides of the filling needle 17, for filling nitrogen into the medicine bottles during the medicine filling process. The height of the nitrogen filling needle 10 can be adjusted through the second locking knob 7, to adapt to the height requirements of medicine bottles of different specifications.

[0067] In actual work process:

[0068] Firstly, the empty medicine bottle is placed in the positioning hole of the honeycomb nest plate; the nest plate conveying mechanism 15 conveys the medicine bottle to the first nitrogen filling station, the nitrogen filling needles 10 of the first nitrogen filling pipeline 1 and the second nitrogen filling pipeline 8 simultaneously fill nitrogen into the medicine bottle, and the air in the bottle is discharged; then, the medicine bottle is conveyed to the filling station, and the filling needle 17 fills the medicine under the nitrogen environment; then, the rubber plug is accurately conveyed to the position through the rubber plug conveying track 16; finally, the rubber plug is pressed into the medicine bottle by the rubber plug rod 18, and the whole filling and capping process is completed.

[0069] The double-pipeline design of the nitrogen filling device ensures that the nitrogen environment in the medicine bottle is maintained throughout the filling process, effectively preventing oxidation of the medicine caused by contact with air. By cooperating the first locking knob 2 and the second locking knob 7, the position of the nitrogen filling needle 10 can be accurately adjusted to meet the needs of different specifications of medicine bottles.

[0070] The nitrogen filling device provided by the utility model has the following technical effects:

[0071] The double-pipeline nitrogen filling structure significantly improves the nitrogen filling efficiency and production efficiency; the nitrogen filling needle has a preset deflection angle relative to the vertical direction, which can make the nitrogen gas spray into the medicine bottle in the best direction, improving the nitrogen filling efficiency and uniformity; the buckle structure and the locking knob are combined to accurately adjust the nitrogen filling height, meeting the production needs of different specifications of medicine bottles; perfect cooperation with the filling and capping mechanism ensures that the medicine is in an inert gas environment from nitrogen filling to filling and capping, effectively improving the stability of the medicine; the use of medical-grade materials ensures the cleanliness and durability of the equipment, meeting the GMP requirements of medicine production.

[0072] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Therefore, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and its equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. A nitrogen-filling device, characterized in that, include: The support structure includes a fixed bracket (6) and a fixed plate disposed on the fixed bracket (6); A nitrogen-filling structure, comprising a first nitrogen-filling pipe (1) and a second nitrogen-filling pipe (8), both the first nitrogen-filling pipe (1) and the second nitrogen-filling pipe (8) being disposed on the fixing plate; The first nitrogen filling pipeline (1) and the second nitrogen filling pipeline (8) are respectively provided with a nitrogen filling inlet at one end and a nitrogen filling needle (10) at the other end.

2. The nitrogen charging device according to claim 1, characterized in that, The fixed support (6) includes a base and a column fixed on the base.

3. The nitrogen charging device according to claim 2, characterized in that, The fixing plate is vertically mounted on the column.

4. The nitrogen charging device according to claim 3, characterized in that, The fixing plate is also provided with a buckle structure for fixing the first nitrogen filling pipe (1) and the second nitrogen filling pipe (8), and the first nitrogen filling pipe and the second nitrogen filling pipe (8) are rotatably connected to the buckle structure.

5. The nitrogen charging device according to claim 4, characterized in that, The column is provided with an adjustment hole (5) for adjusting the height of the first nitrogen filling pipeline (1) and the second nitrogen filling pipeline (8).

6. The nitrogen charging device according to claim 5, characterized in that, It also includes a first locking knob (2) and a second locking knob (7). The first locking knob (2) is used to fix the first nitrogen filling pipeline (1) and the second nitrogen filling pipeline (8) on the buckle structure. The second locking knob (7) passes through the adjustment hole (5) and is connected to the buckle structure to adjust the height position of the first nitrogen filling pipeline (1) and the second nitrogen filling pipeline (8).

7. The nitrogen charging device according to claim 1, characterized in that, The inner diameter of the nitrogen filling needle (10) is smaller than the inner diameter of the corresponding nitrogen filling pipeline.

8. The nitrogen charging device according to claim 1, characterized in that, The first nitrogen filling pipeline (1) and the second nitrogen filling pipeline (8) are arranged in parallel.

9. The nitrogen charging device according to claim 1, characterized in that, The nitrogen-filling needle (10) is deflected at an angle of 15°-45° relative to the vertical direction.

10. The nitrogen charging device according to claim 1, characterized in that, The distance between the nitrogen filling needle (10) of the first nitrogen filling pipeline (1) and the nitrogen filling needle (10) of the second nitrogen filling pipeline (8) is 6-10 times the inner diameter of the nitrogen filling needle (10).

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