Vacuum filling device and medicament production line

Abstract

The utility model relates to a vacuum filling device and a medicament production line, and the vacuum filling device comprises a suction nozzle which is used for being attached to a container opening to be filled to form sealing; the filling needle is arranged in the suction nozzle in a penetrating manner and is used for filling liquid into a container; and the driving mechanism is used for driving the filling needle and the suction nozzle to move respectively. According to the vacuum filling device and the medicament production line, the vacuumizing process and the filling process are synchronously carried out, bubbles are effectively prevented from being generated, the filling efficiency and the filling precision are remarkably improved, in addition, the height-adjustable sealing function is achieved through the driving mechanism, and the sealing effect is good. The liquid filling machine can flexibly adapt to filling targets of different specifications and different heights, the application range of the liquid filling machine is greatly expanded, the sealing effect of independently-driven sealing contact is better, and the requirements for the quality and efficiency of liquid filling in the industries such as medicine and chemical engineering can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of filling equipment, in particular to a vacuum filling device and a medicine production line. Background Art

[0002] In the prior art, filling machines are widely used to fill liquid medicines or reagents into containers such as reagent bottles and ampoules. Traditional filling machines usually use filling needles to inject liquids into bottles. However, this filling method has a significant defect: bubbles are easily generated, especially when filling viscous liquids. Due to the poor fluidity of the liquid, the bubbles generated are difficult to eliminate and will remain in the liquid for a long time. The presence of these bubbles not only affects the aesthetics of the product, but more importantly, in the subsequent packaging process, defective products wrapped with bubbles are likely to appear, resulting in a decline in product quality, and even failure to meet the strict quality requirements of medicines or reagents. Summary of the invention

[0003] In order to solve the above problems, the utility model provides a sealing function with adjustable height, which can flexibly adapt to filling targets of different specifications and heights, greatly expanding its application range and independently driven vacuum filling device and medicine production line with better sealing contact sealing effect.

[0004] In order to achieve the above objectives, in a first aspect, an embodiment of the present application provides a vacuum filling device, comprising:

[0005] The nozzle is used to fit the mouth of the container to be filled to form a seal;

[0006] A filling needle, inserted into the nozzle, for filling the liquid into the container;

[0007] A driving mechanism, used to drive the filling needle and the suction nozzle to move respectively;

[0008] The suction nozzle is slidably sealed with the filling needle, a cavity connected to the container to be filled is separated from at least part of the area between the hole wall of the suction nozzle and the outer surface of the filling needle, and an air hole connected to the cavity is provided on the suction nozzle.

[0009] In order to improve the sealing performance between the suction nozzle and the container mouth, the suction nozzle includes a main body and a sealing lip, the main body has an assembly hole that is slidably and sealably matched with the filling needle; the sealing lip is arranged at the lower end of the main body and is located on the opening side of the assembly hole to fit the container mouth to form a seal; the air hole is arranged on the main body.

[0010] In order to simply and effectively form a vacuum environment, the cavity is formed by spacing between at least a portion of the area between the hole wall of the assembly hole and the outer surface of the filling needle.

[0011] In order to improve the sealing performance between the suction nozzle and the filling needle, at least one first annular sealing groove is provided on the hole wall of the assembly hole, and a first sealing ring is provided in the first annular sealing groove, and the first sealing ring is in sealing contact with the outer surface of the filling needle.

[0012] In order to improve maintainability, a sealing cylinder is detachably mounted on the main body, the assembly hole is arranged on the sealing cylinder, a mounting hole sealingly matched with the sealing cylinder is provided on the main body, and the cavity is formed by at least a partial area between the hole wall of the mounting hole and the outer surface of the sealing cylinder.

[0013] In order to improve the sealing performance between the main body and the sealing cylinder, at least one second annular sealing groove is provided on the hole wall of the mounting hole, a second sealing ring is provided in the second annular sealing groove, and the second sealing ring is in sealing contact with the outer surface of the sealing cylinder.

[0014] In order to simply and effectively realize the independent motion control of the suction nozzle and the filling needle, the driving mechanism includes:

[0015] First cantilever;

[0016] Second cantilever;

[0017] The lifting drive mechanism is used to independently drive the first cantilever and the second cantilever to reciprocate in a vertical direction; wherein the filling needle is detachably mounted on the first cantilever, and the suction nozzle is detachably mounted on the second cantilever.

[0018] In order to simplify the gas path, an air channel communicating with the air hole is provided in the second cantilever, and the air channel is used to communicate with an external vacuum pumping device.

[0019] In a second aspect, an embodiment of the present application provides a pharmaceutical production line, comprising the vacuum filling device described in any embodiment of the first aspect.

[0020] The vacuum filling device and medicine production line designed by the utility model can effectively prevent the generation of bubbles by synchronizing the vacuuming and filling processes, and significantly improve the filling efficiency and filling accuracy. In addition, the device also adopts a driving mechanism to realize a sealing function with adjustable height, so that it can flexibly adapt to filling targets of different specifications and heights, greatly expanding its application range. The independently driven sealing contact sealing effect is better, which can better meet the quality and efficiency requirements of the pharmaceutical, chemical and other industries for liquid filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a vacuum filling device provided in an embodiment of the present application;

[0022] Figure 2This is a schematic diagram of the coordination between the filling needle and the suction nozzle provided in the embodiment of the present application;

[0023] Figure 3 is a schematic diagram of the structure of the driving mechanism provided in an embodiment of the present application;

[0024] Figure 4 It is a schematic diagram of the structure of the airway provided in the embodiment of the present application.

[0025] Among them: suction nozzle 10, filling needle 20, driving mechanism 30, cavity 40, air hole 50, main body 11, sealing lip 12, assembly hole 13, first annular sealing groove 131, first sealing ring 132, sealing cylinder 60, mounting hole 14, second annular sealing groove 141, second sealing ring 142, first cantilever 31, second cantilever 32, lifting driving mechanism 33 airway 321. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] Example 1.

[0028] like Figures 1 to 4 As shown, in the first aspect, the embodiment of the present application provides a vacuum filling device, comprising: a suction nozzle 10, used to fit the opening of a container to be filled to form a seal;

[0029] A filling needle 20 is inserted into the nozzle 10 and is used to fill the liquid into the container;

[0030] A driving mechanism 30, used to drive the filling needle 20 and the suction nozzle 10 to move respectively;

[0031] The suction nozzle 10 is slidably sealed with the filling needle 20 , and a cavity 40 connected to the container to be filled is separated from at least part of the area between the hole wall of the suction nozzle 10 and the outer surface of the filling needle 20 , and the suction nozzle 10 is provided with an air hole 50 connected to the cavity 40 .

[0032] During operation, illustratively: driven by the driving mechanism 30 (for example, a servo motor plus a screw nut substructure), the suction nozzle 10 descends to the container mouth of the container to be filled, and fits tightly with the container mouth to form a seal. Subsequently, the driving mechanism 30 drives the filling needle 20 to descend so that it is inserted into the container. At the same time, the pre-configured external vacuum device starts to work through the air hole 50, and synchronously extracts the air in the cavity 40 connected to the interior of the container to form a vacuum environment, that is, during the filling process, the air in the container is synchronously extracted. Since the interior of the container always maintains a vacuum state, the liquid material can flow into the container more smoothly, effectively preventing the generation of bubbles. In addition, the independent driving characteristics of the filling needle 20 enable it to rise synchronously with the increase of the liquid level in the container, further avoiding the phenomenon of bubbles being wrapped in viscous liquid materials. After the filling is completed, the driving mechanism 30 drives the filling needle 20 to rise, and causes the suction nozzle 10 to also rise and detach from the container, completing the filling process.

[0033] Through the above-mentioned structural design, this embodiment realizes the simultaneous execution of the vacuuming and filling processes, effectively solving the problem of bubbles being easily generated during the filling process, especially when filling materials that are prone to bubbles, such as viscous liquids. Moreover, since the vacuuming and filling are carried out simultaneously, there is no need to wait for the vacuuming to be completed before filling, thus significantly shortening the filling time and greatly improving the production efficiency.

[0034] In addition, the filling needle 20 and the suction nozzle 10 are independently controlled by the driving mechanism 30. This design enhances the reliability of the seal formed between the suction nozzle 10 and the container, effectively prevents the occurrence of air leakage, and further ensures the filling quality.

[0035] In some embodiments, Figure 1 and Figure 2 As shown, the suction nozzle 10 includes a main body 11 and a sealing lip 12, the main body 11 has an assembly hole 13 that is slidably and sealingly matched with the filling needle 20; the sealing lip 12 is arranged at the lower end of the main body 11 and is located on the opening side of the assembly hole 13 to fit the container mouth to form a seal; the air hole 50 is arranged on the main body 11.

[0036] In specific implementation, the sealing lip 12 can be made of silicone with a certain flexibility, that is, during the filling process, the main body 11 drops to above the container mouth, and the sealing lip 12 fits tightly with the container mouth under the action of elastic force, forming a reliable seal to prevent leakage. Then the filling needle 20 drops, passes through the assembly hole 13, and enters the interior of the container. At the same time, the external vacuum device extracts the air in the container through the air hole 50 and the cavity 40 to form a vacuum environment.

[0037] In this embodiment, the cavity 40 is formed by at least a portion of the area between the hole wall of the assembly hole 13 and the outer surface of the filling needle 20. In this way, the existence of the cavity 40 forms a closed space connected to the inside of the container after the sealing lip 12 is sealed with the container mouth. At this time, the air in the space can be effectively extracted by connecting an external vacuum device through the air hole 50, thereby realizing vacuum filling. This structure utilizes the gap between the suction nozzle 10 and the filling needle 20 and expands it, without the need to set up a complex vacuum channel or cavity, which simplifies the structure of the device and reduces the manufacturing cost.

[0038] In some embodiments, Figure 2 As shown, in order to improve the sealing performance between the nozzle 10 and the filling needle 20, at least one first annular sealing groove 131 is provided on the hole wall of the assembly hole 13, and a first sealing ring 132 is provided in the first annular sealing groove 131, and the first sealing ring 132 is in sealing contact with the outer surface of the filling needle 20. In this embodiment, the first sealing ring 132 is usually made of an elastic material, such as rubber, silicone, etc., and has good elasticity and resilience. When the filling needle 20 passes through the assembly hole 13, the first sealing ring 132 will be compressed to form a tight sealing contact, which effectively prevents air or liquid from leaking from the gap between the nozzle 10 and the filling needle 20.

[0039] In other embodiments, Figure 2 As shown, a sealing cylinder 60 is detachably mounted on the main body 11, the assembly hole 13 is arranged on the sealing cylinder 60, a mounting hole 14 sealingly matched with the sealing cylinder 60 is provided on the main body 11, and the cavity 40 is formed by at least a partial area between the hole wall of the mounting hole 14 and the outer surface of the sealing cylinder 60.

[0040] Specifically, a sealing cylinder 60 is detachably mounted on the main body 11 of the suction nozzle 10. By replacing the sealing cylinder 60 with different inner diameters (inner diameters of the assembly hole 13), the vacuum filling device can be adapted to filling needles 20 with different diameters, thereby meeting different filling requirements. At the same time, in this embodiment, the cavity 40 is formed by at least a partial area between the hole wall of the mounting hole 14 and the outer surface of the sealing cylinder 60. Its function is the same as that of the cavity 40 described in the aforementioned embodiment, and both are used to extract air from the container to form a vacuum environment for vacuum filling.

[0041] In some embodiments, Figure 2As shown, in order to improve the sealing performance between the main body 11 and the sealing cylinder 60, at least one second annular sealing groove 141 is provided on the hole wall of the mounting hole 14, and a second sealing ring 142 is provided in the second annular sealing groove 141, and the second sealing ring 142 is in sealing contact with the outer surface of the sealing cylinder 60. In this embodiment, the second sealing ring 142 is usually made of an elastic material, such as rubber, silicone, etc., and has good elasticity and resilience. When the sealing cylinder 60 is installed on the main body 11, the second sealing ring 142 will be compressed to form a tight sealing contact, effectively preventing air or liquid from leaking from the gap between the main body 11 and the sealing cylinder 60.

[0042] In some embodiments, Figure 1 and Figure 3 As shown, in order to simply and effectively realize the independent motion control of the suction nozzle 10 and the filling needle 20, the driving mechanism 30 includes:

[0043] A first cantilever 31;

[0044] A second cantilever 32;

[0045] A lifting drive mechanism 33, used for independently driving the first cantilever 31 and the second cantilever 32 to reciprocate in a vertical direction;

[0046] The filling needle 20 is detachably mounted on the first cantilever 31 , and the suction nozzle 10 is detachably mounted on the second cantilever 32 .

[0047] In specific implementation, the lifting drive mechanism 33 can adopt various forms, such as a servo motor + a lead screw nut pair, a cylinder, etc. With this structural design, the filling needle 20 can be detachably mounted on the first cantilever 31, and the suction nozzle 10 can be detachably mounted on the second cantilever 32. During the filling process, the lifting drive mechanism 33 can independently control the lifting and lowering movements of the first cantilever 31 and the second cantilever 32, thereby realizing independent movement control of the suction nozzle 10 and the filling needle 20. For example, at the beginning of filling, the lifting drive mechanism 33 can first drive the second cantilever 32 to descend, so that the suction nozzle 10 fits the container mouth to form a seal, and then the lifting drive mechanism 33 can drive the first cantilever 31 to descend, so that the filling needle 20 is inserted into the container. During the filling process, the lifting drive mechanism 33 can adjust the height of the first cantilever 31 and the second cantilever 32 as needed. For example, the filling needle 20 can be raised as the liquid level rises to prevent liquid from overflowing. After the filling is completed, the lifting drive mechanism 33 can drive the first cantilever 31 and the second cantilever 32 to rise, so that the filling needle 20 and the suction nozzle 10 are separated from the container, completing the filling process.

[0048] In some embodiments, Figure 4As shown, an air passage 321 communicating with the air hole 50 is provided inside the second cantilever 32, and the air passage 321 is used to communicate with an external vacuum pumping device. In this embodiment, by providing the air passage 321 inside the second cantilever 32, the external vacuum pumping device can be directly connected to the second cantilever 32, thereby shortening the air passage length, simplifying the air passage structure, and making the device more compact.

[0049] In a second aspect, an embodiment of the present application provides a pharmaceutical production line, comprising the vacuum filling device described in any embodiment of the first aspect.

[0050] The vacuum filling device and medicine production line provided in this embodiment effectively prevent the generation of bubbles by synchronizing the vacuuming and filling processes, and significantly improve the filling efficiency and filling accuracy. In addition, the device also adopts a driving mechanism to realize a sealing function with adjustable height, so that it can flexibly adapt to filling targets of different specifications and heights, greatly expanding its application range. The independently driven sealing contact sealing effect is better, which can better meet the quality and efficiency requirements of liquid filling in the pharmaceutical, chemical and other industries.

[0051] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships 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, and do not indicate or imply that the device or element referred to 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.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected 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.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A vacuum filling device, characterized in that: include: A nozzle, which fits against the mouth of the container to be filled to form a seal; A filling needle, inserted into the nozzle, for filling the liquid into the container; A driving mechanism, used to drive the filling needle and the suction nozzle to move respectively; The suction nozzle is slidably sealed with the filling needle, a cavity connected to the container to be filled is separated from at least part of the area between the hole wall of the suction nozzle and the outer surface of the filling needle, and an air hole connected to the cavity is provided on the suction nozzle.

2. The vacuum filling device according to claim 1, characterized in that: The suction nozzle includes a main body and a sealing lip, the main body has an assembly hole that is slidably and sealably matched with the filling needle; the sealing lip is arranged at the lower end of the main body and is located on the opening side of the assembly hole to fit the container mouth to form a seal; the air hole is arranged on the main body.

3. The vacuum filling device according to claim 2, characterized in that: The cavity is formed by the spacing between at least a portion of the area between the hole wall of the assembly hole and the outer surface of the filling needle.

4. The vacuum filling device according to claim 2, characterized in that: At least one first annular sealing groove is arranged on the hole wall of the assembly hole, a first sealing ring is arranged in the first annular sealing groove, and the first sealing ring is in sealing contact with the outer surface of the filling needle.

5. The vacuum filling device according to claim 2, characterized in that: A sealing cylinder is detachably mounted on the main body, the assembly hole is arranged on the sealing cylinder, a mounting hole sealingly matched with the sealing cylinder is arranged on the main body, and the cavity is formed by at least a partial area between the hole wall of the mounting hole and the outer surface of the sealing cylinder.

6. The vacuum filling device according to claim 5, characterized in that: At least one second annular sealing groove is provided on the hole wall of the mounting hole, a second sealing ring is provided in the second annular sealing groove, and the second sealing ring is in sealing contact with the outer surface of the sealing cylinder.

7. The vacuum filling device according to any one of claims 1 to 6, characterized in that: The driving mechanism comprises: First cantilever; Second cantilever; A lifting drive mechanism, used for independently driving the first cantilever and the second cantilever to reciprocate in a vertical direction; Wherein, the filling needle is detachably mounted on the first cantilever, and the suction nozzle is detachably mounted on the second cantilever.

8. The vacuum filling device according to claim 7, characterized in that: An air channel connected to the air hole is arranged in the second cantilever, and the air channel is used to communicate with an external vacuum pumping device.

9. A pharmaceutical production line, characterized in that: The vacuum filling device comprises the vacuum filling device according to any one of claims 1 to 8.

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