Liquid preparation filling and capping structure

Abstract

The utility model discloses a liquid preparation filling and capping structure, which relates to the field of medicine bottle capping equipment, and comprises an outer frame mechanism, an inner frame mechanism, a sealing mechanism and a sealing mechanism, the inner frame mechanism comprises a supporting plate, a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are installed on the supporting plate in a sliding mode, and the supporting plate is installed at the top of an inner cavity of the outer frame mechanism; the adjusting mechanism comprises a first elastic component and a second elastic component; and the moving mechanism comprises a driving rod and a capping piece, the driving rod penetrates through the outer frame mechanism and the supporting plate, and the capping piece is detachably connected to one end of the driving rod and located between the first limiting plate and the second limiting plate. According to the utility model, the inner frame mechanism is matched with the adjusting mechanism, so that capping pieces with different specifications can be transversely supported and limited, and the purposes that the capping process is stable and the capping device is suitable for bottle caps or liquid preparation medicine bottles with different specifications are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a medicine bottle capping equipment field, concretely relates to a liquid preparation filling and capping structure. BACKGROUND

[0002] The liquid preparation filling and capping machine is the key equipment for filling and sealing liquid preparation in the pharmaceutical industry, and is widely used to improve production efficiency, ensure product quality and safety, and adapt to diversified production needs. The device integrates filling, cap screwing, detection and other functions, and can automatically complete bottle feeding, metering filling, cap sorting, cap wearing, capping and bottle discharging. Through high-precision sensors and control systems, real-time monitoring and adjustment of key parameters such as filling volume, capping force and speed are realized to ensure product consistency. In the pharmaceutical industry, the quality and safety of medicines are crucial, and the stability and reliability of the oral liquid filling and capping machine as a key link in the medicine production process directly affect the final quality of the medicine. Therefore, pharmaceutical companies will conduct strict quality control and performance testing when selecting and using these devices.

[0003] In the prior art, the structure and size of the capping piece are fixed, so that the capping machine cannot perform capping operation on liquid preparation medicine bottles and their bottle caps of different specifications and sizes. If the structure and size of the capping piece do not match the bottle cap or the specification of the liquid preparation medicine bottle, the capping may slip or be unevenly stressed, resulting in unqualified capping quality or damage to the liquid preparation medicine bottle, which may cause leakage of the liquid preparation, waste of the liquid preparation, pollution of the production workshop and other adverse effects.

[0004] Therefore, the present application is proposed. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a liquid preparation filling and capping structure, which can horizontally support and limit different specifications of capping pieces by setting the inner frame mechanism and the adjusting mechanism, to solve the problem of capping slip or uneven stress in the prior art.

[0006] The utility model embodiment realizes the following technical scheme: the utility model embodiment provides a liquid preparation filling and capping structure, which comprises:

[0007] The outer frame mechanism can be fixedly installed to have a supporting effect, and the opening of the outer frame mechanism faces downward.

[0008] The inner frame mechanism comprises a supporting plate, a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are slidingly installed on the supporting plate, and the supporting plate is installed at the top of the inner cavity of the outer frame mechanism.

[0009] The adjusting mechanism comprises a first elastic component and a second elastic component, and the first elastic component and the second elastic component are arranged to jointly limit the relative position between the first limiting plate and the second limiting plate;

[0010] The moving mechanism comprises a driving rod and a cover rolling piece, the driving rod penetrates through the outer frame mechanism and the supporting plate, the cover rolling piece is detachably connected to one end of the driving rod and is located between the first limiting plate and the second limiting plate;

[0011] The inner frame mechanism and the adjusting mechanism are jointly arranged to laterally support and limit the cover rolling piece of different specifications;

[0012] The driving rod can drive the cover rolling piece to displace in the vertical direction.

[0013] Preferably, a second spring is sleeved on the driving rod, the second spring is located in the outer frame mechanism, one end of the second spring is connected to the supporting plate, and the other end of the second spring is connected to the cover rolling piece;

[0014] When the second spring is in a free state, the cover rolling piece is hidden in the outer frame mechanism;

[0015] When the second spring bears the gravity of the moving mechanism, the cover rolling piece is exposed at the bottom of the outer frame mechanism.

[0016] Preferably, the first elastic component and the second elastic component are both fixed on the inner side wall of the outer frame mechanism and are oppositely arranged, the free end of the first elastic component is always attached to the first limiting plate, and the free end of the second elastic component is always attached to the second limiting plate.

[0017] Preferably, the first elastic component comprises a supporting cylinder which is transversely installed on the inner wall of the outer frame mechanism, the free end of the supporting cylinder is provided with an opening, and the first spring is arranged in the supporting cylinder, one end of the first spring is connected to the fixed end of the supporting cylinder, and the other end of the first spring is connected with a guide plate which can move transversely in the supporting cylinder;

[0018] The other side of the connecting end of the guide plate and the first spring is connected with a guide rod, the guide rod extends transversely to the outside of the supporting cylinder through the opening, and the free end of the guide rod is connected with a panel which is arranged to be attached to the first limiting plate after being driven by the first spring;

[0019] The diameter of the opening is smaller than the diameter of the guide plate, and the diameter of the guide rod is smaller than the diameter of the opening.

[0020] Preferably, the size of the guide rod is adapted to the size of the opening, the size of the guide plate is adapted to the size of the inner cavity of the supporting cylinder, and the second elastic component and the first elastic component are vertically axially symmetrical.

[0021] Preferably, the inner side of the first limiting plate and the outer side of the cover rolling piece are arranged in a low-friction structure, and the inner side of the second limiting plate and the outer side of the cover rolling piece are arranged in a low-friction structure.

[0022] Preferably, the inner side of the first limiting plate is axially provided with a mounting groove, and a plurality of rolling mechanisms are arranged in the mounting groove in an axial direction;

[0023] The rolling mechanism can form vertical rolling friction with the outer side of the cover rolling piece.

[0024] Preferably, the rolling mechanism comprises a fixed pin and a steel ball, both ends of the fixed pin are fixed on the opposite side walls of the mounting groove respectively, the fixed pin penetrates through the steel ball, and the steel ball can rotate around the fixed pin.

[0025] Preferably, the bottom of the cover rolling piece is provided with an arc-shaped cover, and the outer diameter of the arc-shaped cover gradually increases from top to bottom.

[0026] Preferably, the arc-shaped cover is provided with an air hole, and the outer frame mechanism is detachably provided with an end cover, and the end cover is used for covering the moving mechanism in the outer frame mechanism.

[0027] When the end cover covers the bottom of the outer frame mechanism, the bottom of the arc-shaped cover is attached to the upper end of the end cover, and the second spring is in a free state.

[0028] Compared with the prior art, the embodiment of the utility model has the following advantages and beneficial effects:

[0029] 1. The liquid preparation filling and cover rolling structure provided by the embodiment of the utility model realizes accurate limiting through the sliding cooperation of the first limiting plate and the second limiting plate on the supporting plate and allows the limiting plates to be adjusted according to the size of the cover rolling piece. The elastic force of the elastic component and the sliding cooperation of the limiting plates can ensure that the first limiting plate and the second limiting plate are always attached to the cover rolling piece in the operation process of the cover rolling piece of different specifications, so as to adapt to cover rolling pieces of different specifications and limit the cover rolling pieces in the transverse direction to prevent the inclination, slippage and uneven force in the cover rolling process. The detachable connection of the driving rod and the cover rolling piece allows different specifications of cover rolling pieces to be replaced without disassembling the entire machine, so that the machine can efficiently adapt to bottle caps or liquid preparation bottles of different specifications.

[0030] 2. The second spring is arranged in the embodiment of the utility model, which not only supports the driving rod and the cover rolling piece to prevent the cover rolling piece from falling off, but also improves the stability of the vertical movement of the driving rod and the cover rolling piece, reduces the impact and vibration of the driving rod and the cover rolling piece in the movement process, and improves the stability of the machine and the cover rolling quality. In the embodiment of the utility model, the second spring is used to control the external leakage state and the hidden state of the cover rolling piece relative to the outer frame mechanism, so that the outer frame mechanism protects the cover rolling piece when it is not working, reduces the wear and pollution of the cover rolling piece, and prolongs the service life of the cover rolling piece.

[0031] 3、The embodiment of the utility model provides even support and guide, ensure that the cover piece moves stably in vertical direction, the vertical rolling friction is formed with the outside of cover piece of rolling mechanism, can reduce the moving friction of cover piece in vertical direction, improve the smoothness and efficiency of movement, because rolling friction replaces sliding friction, can significantly reduce the abrasion, prolong the service life of cover piece and limit board, the opposite side wall of mounting groove is fixed respectively in both ends of fixed pin, provide stable support for the steel ball, the steel ball is penetrated by fixed pin, can rotate freely on fixed pin, provide rolling friction.

[0032] 4、The embodiment of the utility model sets up arc cover can ensure the positioning accuracy of bottle cap, guarantee that bottle cap does not deviate in the process of cover rolling, improve the quality of cover rolling, set up end cover can protect internal moving mechanism, prevent dust and pollutant from entering, set up air hole on arc cover can balance the atmospheric pressure inside and outside, facilitate arc cover and end cover separation or reduce the dismounting difficulty of end cover, set up second spring as the structure of free state when end cover covers outer frame mechanism bottom, can avoid fatigue and damage caused by long time stress, improve the durability of second spring.

[0033] Overall, the embodiment of the utility model provides liquid preparation filling cover rolling structure, through setting up inner frame mechanism and adjusting adjusting mechanism cooperation, can carry out horizontal support limit to different specifications of cover rolling piece, reaches the purpose that cover rolling process is stable and is applicable to different specifications bottle cap or liquid preparation medicine bottle. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment, should understand, the following drawing only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0035] Figure 1 The liquid preparation filling cover rolling structure provided by the embodiment of the utility model is prepared cover rolling state structure schematic diagram;

[0036] Figure 2 The liquid preparation filling cover rolling structure provided by the embodiment of the utility model is cover rolling state structure schematic diagram;

[0037] Figure 3 The structure schematic diagram of the first elastic component of the embodiment of the utility model is amplified for the liquid preparation filling cover rolling structure provided by the embodiment of the utility model;

[0038] Figure 4 The first limit board structure schematic diagram provided by the embodiment of the utility model is for the liquid preparation filling cover rolling structure provided by the embodiment of the utility model;

[0039] Figure 5 The closing state structure schematic view of the rolling cover structure provided by the embodiment of the utility model.

[0040] Markings in the drawings and corresponding component names:

[0041] 1-outer frame mechanism, 2-inner frame mechanism, 3-supporting plate, 4-first limiting plate, 5-second limiting plate, 6-first elastic component, 7-second elastic component, 8-driving rod, 9-rolling cover piece, 10-second spring, 11-supporting cylinder, 12-first spring, 13-guide plate, 14-guide rod, 15-panel, 16-mounting groove, 17-rolling mechanism, 18-fixing pin, 19-steel ball, 20-arc-shaped cover, 21-air hole, 22-end cover, 23-liquid preparation bottle, 24-supporting table. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0044] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0045] In the description of the utility model, it should be explained that the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0046] EMBODIMENT

[0047] As Figure 1 and Figure 2As shown, the utility model embodiment provides a kind of liquid preparation filling and cover structure, comprising: outer frame mechanism 1, it can be fixed installation and has supporting effect, outer frame mechanism 1 opening downward, it is convenient for the conveying and cover operation of medicine bottle, while ensuring the stability of cover structure;Inner frame mechanism 2, including support plate 3, first limiting plate 4 and second limiting plate 5, first limiting plate 4 and second limiting plate 5 are slidably installed on support plate 3, and support plate 3 is installed at the top of the inner cavity of outer frame mechanism 1;It needs to be explained that the sliding mounting structure here can be realized by the structure of existing sliding groove and sliding block cooperation, here is not limited, as long as it can realize sliding connection and the purpose of stable support for first limiting plate 4, second limiting plate 5 can be.Adjusting mechanism, including first elastic component 6 and second elastic component 7, first elastic component 6 and second elastic component 7 are set as the relative position between first limiting plate 4 and second limiting plate 5 is commonly elastically limited;The sliding fit structure of first limiting plate 4 and second limiting plate 5 on support plate 3 allows them to be adjusted according to the size of cover piece 9, realizes accurate limiting, so that cover structure can adapt to different specifications of cover piece 9, improve the flexibility and applicability of machine.Elastic component provides elastic force to ensure that first limiting plate 4 and second limiting plate 5 can always be attached to cover piece 9, even in the operation process of different specifications of cover piece 9 also can keep stable.Elastic force of elastic component and sliding fit of limiting plate jointly act, realize the transverse limiting of cover piece 9, prevent the inclination, skidding and uneven stress phenomenon in cover process.Moving mechanism, including driving rod 8 and cover piece 9, driving rod 8 penetrates outer frame mechanism 1 and support plate 3, and cover piece 9 is detachably connected at one end of driving rod 8, and is located between first limiting plate 4 and second limiting plate 5;The detachable connection of driving rod 8 and cover piece 9 allows different specifications of cover piece 9 to be replaced without disassembling the entire machine, so that the machine can efficiently adapt to different specifications of bottle cap or liquid preparation bottle 23, improve production efficiency and flexibility, simplify the process of replacing cover piece 9, reduce maintenance time and cost.

[0048] In the utility model embodiment, inner frame mechanism 2 and adjusting mechanism are jointly arranged to transversely support and limit different specifications of cover piece 9, reduce the inclination, skidding and uneven stress phenomenon, improve the cover quality.Driving rod 8 can drive cover piece 9 to displace in vertical direction.In actual operation process, the original kinetic energy of driving rod 8 can be derived from motor, hydraulic cylinder structure, pneumatic cylinder structure etc., here is not limited, using existing driving structure can be realized, as long as it can achieve driving cover piece 9 to displace in vertical direction, realize the purpose of accurate cover.It needs to be explained that the connection between driving rod 8 and cover piece 9 can be connected by thread cooperation, also can be connected by bonding, clamping, magnetic attraction etc., here is not limited, as long as it can achieve the purpose of stable detachable connection.

[0049] In order to improve the independent flexibility of the rolling cover structure, a second spring 10 can be sleeved on the driving rod 8, the second spring 10 is located in the outer frame mechanism 1, one end of the second spring 10 is connected with the support plate 3, and the other end is connected with the rolling cover piece 9; when the second spring 10 is in a free state, the rolling cover piece 9 is hidden in the outer frame mechanism 1 Figure 5 ); when the second spring 10 bears the gravity of the moving mechanism, the rolling cover piece 9 is exposed at the bottom of the outer frame mechanism 1 Figure 1 . Specifically, the second spring 10 has a direct supporting effect on the rolling cover piece 9 and the driving rod 8, when the top of the driving rod 8 is not connected with the supporting device, the second spring 10 can support the driving rod 8 and the rolling cover piece 9 as a whole, so that the moving mechanism can be stably installed and fixed, at this time, the second spring 10 will be slightly stretched due to bearing the gravity of the driving rod 8 and the rolling cover piece 9, so as to keep the balance of the whole structure, because the second spring 10 is slightly stretched, the rolling cover piece 9 will be slightly lowered. In the embodiment of the utility model, the total length of the second spring 10 and the rolling cover piece 9 is accurately limited, that is, when the second spring 10 is in a free state (not stretched), the rolling cover piece 9 is hidden in the outer frame mechanism 1, when the second spring 10 is subjected to the total gravity of the driving rod 8 and the rolling cover piece 9, the second spring 10 will be stretched, so as to drive the rolling cover piece 9 to be exposed at the bottom of the outer frame mechanism 1, the structure not only can protect the moving mechanism through the outer frame mechanism 1, but also can ensure that the second spring 10 realizes the exposure of the rolling cover piece 9 under the condition of limited stretching, so as to prevent the influence of the outer frame mechanism 1 on the rolling operation. At the same time, when the rolling cover structure stops operating in the embodiment of the utility model, even if the driving rod 8 is not connected with the motor, the hydraulic cylinder structure and the like, the second spring 10 will support the driving rod 8 and the rolling cover piece 9, the driving rod 8 and the rolling cover piece 9 will not be separated from the outer frame mechanism 1 due to the action of gravity, so as to avoid the situation that the driving rod 8 and the rolling cover piece 9 are dropped and damaged and the operator is injured.

[0050] In the process of use, the motor or the hydraulic cylinder and the like moves the driving rod 8 downward, drives the rolling cover piece 9 to move close to the liquid preparation bottle 23 installed on the support table 24, until the bottom of the rolling cover piece 9 presses the bottle cap at the top of the liquid preparation bottle 23, as shown in Figure 2 , the stretching deformation amplitude of the second spring 10 will also gradually increase in the process. In the embodiment of the utility model, under the action of the second spring 10, the impact and vibration of the driving rod 8 and the rolling cover piece 9 in the movement process are reduced, and the rolling strength can also be better controlled, so as to improve the effect and quality of rolling.

[0051] Exemplarily, the first elastic component 6 and the second elastic component 7 are both fixed on the inner side wall of the outer frame mechanism 1 and oppositely arranged, the free end of the first elastic component 6 is always attached to the first limiting plate 4, and the free end of the second elastic component 7 is always attached to the second limiting plate 5. Specifically, the first elastic component 6 and the second elastic component 7 are used to elastically limit the first limiting plate 4 and the second limiting plate 5 through the elastic force, ensure the correct position and stability of the limiting plate on the supporting plate 3, the elastic force of the elastic component can fine-tune the position of the limiting plate to adapt to different specifications of the cover rolling piece 9, ensure the accuracy and consistency in the cover rolling process, the two elastic components are oppositely arranged, can balance the force applied to the limiting plate, ensure the stability and symmetry of the limiting plate, the free end of the first elastic component 6 is always attached to the first limiting plate 4, and the free end of the second elastic component 7 is always attached to the second limiting plate 5, which ensures the direct transmission and effective action of the elastic force.

[0052] As a preferred embodiment of the utility model, Figure 3As shown, the first elastic component 6 comprises a support cylinder 11 transversely mounted on the inner wall of the outer frame mechanism 1, the free end of the support cylinder 11 is provided with an opening, and the support cylinder 11 is provided with a first spring 12, one end of the first spring 12 is connected with the fixed end of the support cylinder 11, and the other end is connected with a guide plate 13, the guide plate 13 can move transversely in the support cylinder 11; the other side of the guide plate 13 connected with the connecting end of the first spring 12 is connected with a guide rod 14, the guide rod 14 transversely penetrates the opening and extends to the outside of the support cylinder 11, the free end of the guide rod 14 is connected with a panel 15, the panel 15 is arranged to be in contact with the first limiting plate 4 after being driven by the first spring 12; the diameter of the opening is smaller than the diameter of the guide plate 13, and the diameter of the guide rod 14 is smaller than the diameter of the opening. Specifically, the support cylinder 11 is used to accommodate the first spring 12 and the guide plate 13, the free end of the support cylinder 11 is provided with an opening to allow the guide rod 14 to extend out of it, the first spring 12 provides elastic force to drive the guide plate 13 and the guide rod 14 to achieve elastic restriction of the first limiting plate 4, the guide plate 13 is a connecting component between the first spring 12 and the guide rod 14 and can move transversely in the support cylinder 11 to transmit the force of the spring, since the diameter of the opening is smaller than the diameter of the guide plate 13, the guide plate 13 is restricted in the support cylinder 11 and cannot fall off. The guide rod 14 transmits the force received by the guide plate 13 to the panel 15 to achieve driving of the first limiting plate 4, and the diameter of the guide rod 14 is smaller than the diameter of the opening, so it can freely extend out of the opening of the support cylinder 11, and the panel 15 is a component that directly contacts the first limiting plate 4 and is in contact with the first limiting plate 4 after being driven by the first spring 12 to achieve limiting, when the first spring 12 is compressed or stretched, the guide plate 13 moves transversely in the support cylinder 11, and the force is transmitted to the panel 15 through the guide rod 14, and the panel 15 is in contact with the first limiting plate 4 under the driving of the first spring 12 to achieve elastic restriction of the first limiting plate 4. Of course, the second elastic component 7 can adopt the same structure to elastically restrict the second limiting plate 5, which will not be repeated here.

[0053] More preferably, the size of the guide rod 14 is adapted to the size of the opening, the size of the guide plate 13 is adapted to the size of the inner cavity of the support cylinder 11, and the second elastic component 7 and the first elastic component 6 are vertically axisymmetric. The size of the opening is designed to just accommodate the guide rod 14, which not only ensures the free movement of the guide rod 14, but also improves the stability of the guide rod 14 in the support cylinder 11, and the size of the guide plate 13 is designed to be adapted to the size of the inner cavity of the support cylinder 11, so that the guide plate 13 can move freely in the support cylinder 11 while maintaining stability, and the second elastic component 7 and the first elastic component 6 are vertically axisymmetric, which can ensure the consistency and balance of the force transmission and limiting effect of the machine on both sides.

[0054] In order to reduce the resistance of the first limiting plate 4 and the second limiting plate 5 to the vertical movement of the rolling cover piece 9, the inner side of the first limiting plate 4 and the outer side of the rolling cover piece 9 can be provided as a low-friction structure, and the inner side of the second limiting plate 5 and the outer side of the rolling cover piece 9 can be provided as a low-friction structure. As a preferred embodiment of the present application, as shown in Figure 4 The inner side of the first limiting plate 4 is axially provided with a mounting groove 16, and a plurality of rolling mechanisms 17 are arranged axially in the mounting groove 16; the rolling mechanism 17 can form a vertical rolling friction with the outer side of the rolling cover piece 9. Specifically, the rolling mechanism 17 includes a fixed pin 18 and a steel ball 19, the fixed pin 18 is fixed at the opposite side walls of the mounting groove 16 at both ends, the fixed pin 18 penetrates the steel ball 19, and the steel ball 19 can rotate around the fixed pin 18. In the above structure, the mounting groove 16 allows the rolling mechanism 17 to be integrated inside the limiting plate, thereby reducing the occupation of external space and improving the compactness of the structure, a plurality of rolling mechanisms 17 are arranged axially in the mounting groove 16, this arrangement can provide uniform support and guidance, ensure the smooth movement of the rolling cover piece 9 in the vertical direction, the rolling mechanism 17 forms a vertical rolling friction with the outer side of the rolling cover piece 9, which can reduce the movement friction of the rolling cover piece 9 in the vertical direction, improve the smoothness and efficiency of the movement, since the rolling friction replaces the sliding friction, the wear can be significantly reduced, and the service life of the rolling cover piece 9 and the limiting plate is prolonged, the fixed pin 18 is fixed at the opposite side walls of the mounting groove 16 at both ends, providing stable support for the steel ball 19, the steel ball 19 is penetrated by the fixed pin 18, and can rotate freely on the fixed pin 18, providing rolling friction.

[0055] Further, the rolling cover piece 9 is provided with an arc-shaped cover 20, the outer diameter of the arc-shaped cover 20 gradually increases from top to bottom, and the design of the arc-shaped cover 20 helps to guide the bottle cap to be placed correctly below the rolling cover piece 9, which can ensure the positioning accuracy of the bottle cap and ensure that the bottle cap does not deviate during the rolling process, thereby improving the rolling quality. As a preferred embodiment of the present application, as shown in Figure 5As shown, the arc-shaped cover 20 is provided with air holes 21, and the outer frame mechanism 1 is detachably provided with an end cover 22, which is used to cover the moving mechanism in the outer frame mechanism 1; when the end cover 22 covers the bottom of the outer frame mechanism 1, the bottom of the arc-shaped cover 20 is attached to the upper end of the end cover 22, and the second spring 10 is in a free state. The air holes 21 can be used as exhaust channels to balance the atmospheric pressure inside and outside the arc-shaped cover 20, and the arrangement of the end cover 22 makes the outer frame mechanism 1 easy to close and open, which is convenient for the maintenance and cleaning of the internal moving mechanism, the inner frame mechanism 2 and the adjusting mechanism. When the end cover 22 covers the bottom of the outer frame mechanism 1, it can protect the internal moving mechanism from dust and pollutants, and the attachment of the end cover 22 to the bottom of the arc-shaped cover 20 can improve the stability of the entire rolling cover piece 9 in the storage state. At this time, the second spring 10 is in a free state, which can protect the second spring 10 in a long-term storage state, avoid fatigue and damage caused by long-term stress, and improve the durability of the second spring 10.

[0056] The preferred embodiments of the present application are described above, but the present application is not limited to the above. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that the structures or components shown in the drawings are not necessarily drawn to scale, and the present application omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the present application.

Claims

1. A liquid formulation filling and capping structure, characterized in that, include: The outer frame mechanism (1) can be fixedly installed and has a supporting function, and the outer frame mechanism (1) has an opening facing downward; The inner frame mechanism (2) includes a support plate (3), a first limiting plate (4) and a second limiting plate (5). The first limiting plate (4) and the second limiting plate (5) are slidably mounted on the support plate (3). The support plate (3) is mounted on the top of the inner cavity of the outer frame mechanism (1). The adjustment mechanism includes a first elastic component (6) and a second elastic component (7), wherein the first elastic component (6) and the second elastic component (7) are configured to jointly elastically limit the relative position between the first limiting plate (4) and the second limiting plate (5); The moving mechanism includes a drive rod (8) and a cover (9). The drive rod (8) passes through the outer frame mechanism (1) and the support plate (3). The cover (9) is detachably connected to one end of the drive rod (8) and is located between the first limiting plate (4) and the second limiting plate (5). The inner frame mechanism (2) and the adjustment mechanism are jointly configured to provide lateral support and limit for the rolled-up parts (9) of different specifications; The drive rod (8) can drive the cover (9) to move in the vertical direction.

2. The liquid formulation filling and capping structure according to claim 1, characterized in that, A second spring (10) is sleeved on the drive rod (8). The second spring (10) is located inside the outer frame mechanism (1). One end of the second spring (10) is connected to the support plate (3), and the other end is connected to the cover piece (9). When the second spring (10) is in a free state, the cap (9) is hidden inside the outer frame mechanism (1); When the second spring (10) bears the weight of the moving mechanism, the cover (9) protrudes from the bottom of the outer frame mechanism (1).

3. The liquid formulation filling and capping structure according to claim 1, characterized in that, The first elastic component (6) and the second elastic component (7) are both fixed on the inner sidewall of the outer frame mechanism (1) and are arranged opposite to each other. The free end of the first elastic component (6) is always in contact with the first limiting plate (4), and the free end of the second elastic component (7) is always in contact with the second limiting plate (5).

4. The liquid formulation filling and capping structure according to claim 3, characterized in that, The first elastic component (6) includes a support cylinder (11) that is horizontally mounted on the inner wall of the outer frame mechanism (1). The free end of the support cylinder (11) is provided with an opening, and a first spring (12) is provided inside the support cylinder (11). One end of the first spring (12) is connected to the fixed end of the support cylinder (11), and the other end is connected to a guide plate (13). The guide plate (13) can move laterally inside the support cylinder (11). The guide plate (13) is connected to a guide rod (14) on the other side of the connection end with the first spring (12). The guide rod (14) extends laterally through the opening to the outside of the support cylinder (11). The free end of the guide rod (14) is connected to a panel (15). The panel (15) is configured to fit against the first limiting plate (4) after being driven by the first spring (12). The diameter of the opening is smaller than the diameter of the guide plate (13), and the diameter of the guide rod (14) is smaller than the diameter of the opening.

5. The liquid formulation filling and capping structure according to claim 4, characterized in that, The size of the guide rod (14) is adapted to the size of the opening, the size of the guide plate (13) is adapted to the size of the inner cavity of the support cylinder (11), and the second elastic component (7) and the first elastic component (6) are axially symmetrical in the vertical direction.

6. The liquid formulation filling and capping structure according to claim 1, characterized in that, The inner side of the first limiting plate (4) and the outer side of the cover (9) are configured with a low friction structure, and the inner side of the second limiting plate (5) and the outer side of the cover (9) are configured with a low friction structure.

7. The liquid formulation filling and capping structure according to claim 6, characterized in that, The first limiting plate (4) has an axially arranged mounting groove (16) on its inner side, and a plurality of rolling mechanisms (17) are arranged axially in the mounting groove (16). The rolling mechanism (17) is capable of forming vertical rolling friction with the outer side of the rolled cover (9).

8. The liquid formulation filling and capping structure according to claim 7, characterized in that, The rolling mechanism (17) includes a fixing pin (18) and a steel ball (19). The two ends of the fixing pin (18) are fixed on the opposite sidewalls of the mounting groove (16). The fixing pin (18) passes through the steel ball (19), and the steel ball (19) can rotate around the fixing pin (18).

9. The liquid formulation filling and capping structure according to claim 2, characterized in that, The bottom of the rolled cover (9) is provided with an arc-shaped cover (20), and the outer diameter of the arc-shaped cover (20) gradually increases from top to bottom.

10. A liquid formulation filling and capping structure according to claim 9, characterized in that, The arc-shaped cover (20) is provided with air holes (21), and the outer frame mechanism (1) is detachably provided with an end cap (22). The end cap (22) is used to cover the moving mechanism inside the outer frame mechanism (1). When the end cap (22) is closed on the bottom of the outer frame mechanism (1), the bottom of the arc-shaped cover (20) is in contact with the upper end of the end cap (22), and the second spring (10) is in a free state.

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