Liquid preparation filling machine

Abstract

The utility model relates to the technical field of material packaging, in particular to a liquid preparation filling machine. A liquid preparation filling machine comprises a base, a fixed frame is arranged on the top face of the base, a movable frame is arranged on the fixed frame, the movable frame slides on the fixed frame, the movable frame is connected with a gear assembly, the gear assembly is connected with a driving motor, the driving motor is arranged on the fixed frame, and the gear assembly is connected with the driving motor. A filling head is arranged on the movable frame, a liquid level sensor is arranged on the filling head, an electromagnetic valve is arranged on the filling head, the electromagnetic valve is electrically connected with a controller, the controller is electrically connected with the liquid level sensor, and the controller is used for controlling opening and closing of the electromagnetic valve. The problems that the accuracy of the total amount of liquid medicine discharged from the liquid outlet of the liquid medicine filling machine has a large error, the total amount of the liquid medicine filled in each sterile container is inconsistent, and therefore use of medicine is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of material packaging technology, and in particular to a liquid preparation filling machine. Background Technology

[0002] Filling machines are a type of packaging machine. From the perspective of packaging materials, they can be divided into liquid filling machines, paste filling machines, powder filling machines, and granule filling machines. Among them, liquid filling machines are widely used in various fields.

[0003] The rapid development of the pharmaceutical industry has created a vast market for liquid filling machines. From injectable solutions, oral liquids, and chemical solutions to biological agents, liquid filling machines are being used more and more widely in the pharmaceutical industry.

[0004] However, some liquid filling machines on the market have significant errors in the accuracy of the total amount of liquid discharged from the outlet when filling sterile containers. This makes it impossible to ensure that the total amount of liquid filled into each sterile container is consistent, thus affecting the use of the medicine.

[0005] Therefore, how to provide a liquid formulation filling machine that ensures the accuracy of the total amount of liquid medicine filled into sterile containers is an urgent technical problem that needs to be solved. Utility Model Content

[0006] This invention provides a liquid preparation filling machine that solves the problem that the accuracy of the total amount of liquid discharged from the outlet of the liquid filling machine is relatively large, and the total amount of liquid filled into each sterile container is inconsistent, thus affecting the use of the medicine.

[0007] This utility model provides a liquid preparation filling machine, comprising: a base, a fixed frame disposed on the top surface of the base, a movable frame disposed on the fixed frame, the movable frame sliding on the fixed frame, the movable frame being connected to a gear assembly, the gear assembly being connected to a drive motor, the drive motor being disposed on the fixed frame, a filling head disposed on the movable frame, a liquid level sensor disposed on the filling head, a solenoid valve disposed on the filling head, the solenoid valve being electrically connected to a controller, the controller being electrically connected to the liquid level sensor, and the controller being used to control the opening and closing of the solenoid valve.

[0008] In one possible implementation, the gear assembly includes a drive gear and a first toothed plate, the drive gear being disposed on the rotating shaft of the drive motor, and the first toothed plate being disposed on the movable frame, the first toothed plate meshing with the drive gear.

[0009] In one possible implementation, a first limiting block is provided at the upper end of the first toothed plate, and a second limiting block is provided at the lower end of the first toothed plate;

[0010] When the first limiting block abuts against the drive gear, the filling head is in the first horizontal position, that is, the position where the filling head is used to fill liquid into the sterile container;

[0011] When the second limiting block abuts against the drive gear, the filling head is in the second horizontal position, that is, the filling head is away from the sterile container.

[0012] In one possible implementation, the gear assembly further includes a driven gear, a second toothed plate, and a support plate;

[0013] The driven gear is rotatably mounted on the support plate, and the driven gear meshes with the driving gear;

[0014] The second toothed plate is disposed on the movable frame and is located away from the first toothed plate, and the second toothed plate meshes with the driven gear;

[0015] The support plate is mounted on the fixed frame, and the support plate has a through hole. The rotating shaft of the drive motor passes through the through hole and is connected to the drive gear.

[0016] In one possible implementation, a filling tank is provided on the base, the filling tank is connected to the filling head via a filling hose, and the horizontal height of the filling tank is higher than the second horizontal position so that the liquid in the filling tank can enter the filling head.

[0017] In one possible implementation, the liquid formulation filling machine further includes a conveying mechanism, which includes a drive roller, a mounting frame, a stepper motor, and a conveyor belt;

[0018] The drive roller is mounted on the mounting frame and rotates on the mounting frame;

[0019] One end of the mounting bracket is connected to the fixing bracket;

[0020] The stepper motor is mounted on the mounting bracket, and the rotating shaft of the stepper motor is connected to one end of the transmission roller via a belt.

[0021] In one possible implementation, a limiting frame is provided on the conveyor belt for placing the sterile container.

[0022] In one possible implementation, the limiting frame is formed by multiple limiting rods enclosing it.

[0023] In one possible implementation, there are multiple limiting frames, which are arranged side by side on the conveyor belt along its length.

[0024] In one possible implementation, the liquid formulation filling machine further includes a connecting frame disposed on the movable frame, the free end of the connecting frame being provided with a snap-fit ​​ring, and the outlet end of the filling head passing at least partially through the inner ring of the snap-fit ​​ring.

[0025] The beneficial effects of this invention are as follows: The conveying mechanism transports the sterile container to the bottom of the filling head. The drive motor pushes the moving frame downwards through a gear assembly. The liquid outlet of the filling head enters the sterile container, filling it with the medication. A liquid level sensor detects the liquid level in the sterile container. When the liquid level reaches the specified requirement, the liquid level sensor sends an electrical signal to the controller. The controller responds to the electrical signal and sends a command to the solenoid valve, controlling the solenoid valve to close, thus completing the quantitative filling of the sterile container with medication. This avoids significant errors in the accuracy of the total amount of medication discharged from the outlet of the medication filling machine, ensuring a consistent total amount of medication filled into each sterile container and guaranteeing the quality of the medicine. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a perspective view of the first state of a liquid preparation filling machine of the present invention, with the conveying mechanism concealed.

[0028] Figure 2 This is a perspective view of the second state of a liquid preparation filling machine of the present invention, with the conveying mechanism concealed.

[0029] Figure 3 This is a perspective view of a liquid preparation filling machine of the present invention in its first state with a conveying mechanism;

[0030] Figure 4 This is a perspective view of the second state of a liquid preparation filling machine of the present invention, which has a conveying mechanism;

[0031] Figure 5 This is a front view of area A of a liquid formulation filling machine according to the present invention;

[0032] Figure 6 This is a perspective view of area B of a liquid formulation filling machine according to the present invention;

[0033] Figure 7 This is a cross-sectional front view of the conveying mechanism of a liquid preparation filling machine according to the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Base; 2. Conveying mechanism; 201. Drive roller; 202. Mounting frame; 203. Stepper motor; 204. Conveying belt; 3. Fixed frame; 4. Moving frame; 5. Gear assembly; 501. Drive gear; 502. Driven gear; 503. First gear plate; 504. Second gear plate; 505. Bearing plate; 6. Drive motor; 7. Filling head; 8. Liquid level sensor; 9. Solenoid valve; 10. Controller; 11. First limit block; 12. Second limit block; 13. Filling box; 14. Filling hose; 15. Aseptic container; 16. Limiting frame; 17. Limiting rod; 18. Connecting frame; 19. Snap ring. Detailed Implementation

[0036] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] See Figure 1 and Figure 6 This utility model provides a technical solution: a liquid preparation filling machine, comprising: a base 1, a fixed frame 3 on the top surface of the base 1, a movable frame 4 on the fixed frame 3, the movable frame 4 sliding on the fixed frame 3, the movable frame 4 being connected to a gear assembly 5, the gear assembly 5 being connected to a drive motor 6, the drive motor 6 being mounted on the fixed frame 3, a filling head 7 on the movable frame 4, a liquid level sensor 8 on the filling head 7, a solenoid valve 9 on the filling head 7, the solenoid valve 9 being electrically connected to a controller 10, the controller 10 being electrically connected to the liquid level sensor 8, and the controller 10 being used to control the opening and closing of the solenoid valve 9.

[0040] The base 1 is equipped with support legs to increase its stability. The fixed frame 3 is equipped with a sliding groove, and the movable frame 4 has sliders at both ends. The sliders move within the sliding groove so that the movable frame 4 can move within the fixed frame 3.

[0041] Specifically, the conveying mechanism 2 is used to convey the sterile container 15 to the bottom of the filling head 7. The drive motor 6 pushes the moving frame 4 downward through the gear assembly 5. The moving frame 4 moves downward on the fixed frame 3, driving the filling head 7 to move downward. The liquid outlet of the filling head 7 enters the sterile container 15 and fills the sterile container 15 with the medicine. The liquid level sensor 8 detects the liquid level in the sterile container 15. When the liquid level in the sterile container 15 reaches the preset standard, the liquid level sensor 8 sends an electrical signal to the controller 10. The controller 10 responds to the electrical signal and sends a command to the solenoid valve 9 to close the solenoid valve 9, thus completing the quantitative filling of the sterile container 15 with the medicine.

[0042] This invention solves the problem of significant errors in the accuracy of the total amount of liquid discharged from the outlet of the liquid filling machine, ensuring that the total amount of liquid filled into each sterile container is consistent, thus guaranteeing the quality of the medicine.

[0043] It should be noted that when the liquid level sensor 8 detects that the liquid level in the sterile container 15 has reached a preset value, the liquid level sensor 8 sends an electrical signal to the controller 10. The controller 10 responds to the electrical signal and sends a command to the solenoid valve 9, thereby controlling the closing of the solenoid valve 9. The data transmission and signal flow generated in this process are techniques known to those skilled in the art, and this application does not improve upon these known techniques. Regarding the opening of the solenoid valve 9, it can be achieved by setting the controller 10, and this application also does not improve upon this.

[0044] The controller 10 is a Burkert 8605 electromagnetic proportional valve controller, and the liquid level sensor is a SEN0356 ultrasonic liquid level sensor.

[0045] Preferably, the liquid preparation filling machine further includes a connecting frame 18, which is mounted on the movable frame 4. A snap-fit ​​ring 19 is provided at the free end of the connecting frame 18, and the outlet end of the filling head 7 passes at least partially through the inner ring of the snap-fit ​​ring 19. The connecting frame 18 is located on one side of the movable frame 4, and there are multiple snap-fit ​​rings 19, the number of which matches the number of filling heads 7. The outlet end of the filling head 7 passes through the inner ring of the snap-fit ​​ring 19, and the filling head 7 is fixed to the connecting frame 18. One end of the filling hose 14 is connected to the filling tank 13, and the other end of the filling hose 14 passes through the inner frame of the connecting frame 18 and is connected to the filling head 7 via a solenoid valve 9.

[0046] See Figure 1 and Figure 2 In some embodiments, the gear assembly 5 includes a drive gear 501 and a first toothed plate 503. The drive gear 501 is disposed on the rotating shaft of the drive motor 6, and the first toothed plate 503 is disposed on the movable frame 4. The first toothed plate 503 meshes with the drive gear 501.

[0047] When the drive motor 6 rotates in the forward direction, it drives the drive gear 501 to rotate in the forward direction, which in turn drives the first toothed plate 503 to move downward. The moving frame 4 moves downward within the fixed frame 3, causing the filling head 7 to move downward so that the outlet of the filling head 7 can enter the sterile container 15. When the drive motor 6 rotates in the reverse direction, it drives the drive gear 501 to rotate in the reverse direction, which in turn drives the first toothed plate 503 to move upward. The moving frame 4 moves upward within the fixed frame 3, causing the filling head 7 to move upward so that the outlet of the filling head 7 is away from the opening of the sterile container 15.

[0048] See Figure 5 In some embodiments, a first limiting block 11 is provided at the upper end of the first toothed plate 503, and a second limiting block 12 is provided at the lower end of the first toothed plate 503. When the first limiting block 11 abuts against the drive gear 501, the filling head 7 is in a first horizontal position, that is, the position where the filling head 7 is used to fill liquid into the sterile container 15. When the second limiting block 12 abuts against the drive gear 501, the filling head 7 is in a second horizontal position, that is, the position where the filling head 7 is away from the sterile container 15.

[0049] During the downward movement of the movable frame 4 within the fixed frame 3, the upper end of the drive gear 501 abuts against the bottom surface of the first limiting block 11, and the outlet of the filling head 7 on the movable frame 4 enters the sterile container 15. During the upward movement of the movable frame 4 within the fixed frame 3, the lower end of the drive gear 501 abuts against the top surface of the second limiting block 12, and the outlet of the filling head 7 on the movable frame 4 moves away from the sterile container 15. The first and second horizontal positions of the filling head 7 are preset, but can also be adjusted according to the size of the sterile container 15. Preferably, the first limiting block 11 and the second limiting block 12 are telescopic structures, which facilitates the adjustment of the first and second horizontal positions of the filling head 7.

[0050] See Figure 5 In some embodiments, the gear assembly 5 further includes a driven gear 502, a second toothed plate 504, and a support plate 505. The driven gear 502 is rotatably mounted on the support plate 505 and meshes with the driving gear 501. The second toothed plate 504 is mounted on the movable frame 4 and is located away from the first toothed plate 503. The second toothed plate 504 meshes with the driven gear 502. The support plate 505 is mounted on the fixed frame 3 and has a through hole. The rotating shaft of the drive motor 6 passes through the through hole and is connected to the driving gear 501.

[0051] The drive gear 501 and driven gear 502 have the same transmission ratio, making the movement of the movable frame 4 within the fixed frame 3 smoother. The drive motor 6 is mounted on the support plate 505 and is located away from one end of the movable frame 4.

[0052] Specifically, when the rotating shaft of the drive motor 6 rotates in the forward direction, it drives the drive gear 501 to rotate in the forward direction and the driven gear 502 to rotate in the reverse direction. Simultaneously, the drive gear 501 drives the first toothed plate 503 to move downward, and the driven gear 502 drives the second toothed plate 504 to move downward. The moving frame 4 is forced to move downward within the fixed frame 3, which drives the filling head 7 to move downward so that the liquid outlet of the filling head 7 can enter the sterile container 15.

[0053] When the rotating shaft of the drive motor 6 rotates in the opposite direction, it drives the drive gear 501 to rotate in the opposite direction, and drives the driven gear 502 to rotate in the forward direction. Simultaneously, the drive gear 501 drives the first toothed plate 503 to move upward, and the driven gear 502 drives the second toothed plate 504 to move upward. The moving frame 4 is forced to move downward within the fixed frame 3, which drives the filling head 7 to move downward so that the liquid outlet of the filling head 7 can enter the sterile container 15.

[0054] In some embodiments, a filling tank 13 is provided on the base 1, and the filling tank 13 is connected to the filling head 7 via a filling hose 14. The horizontal height of the filling tank 13 is higher than the second horizontal position so that the liquid in the filling tank 13 can enter the filling head 7. For ease of viewing, only [the following is shown] Figure 1 The connection between the filling hose 14 and the filling head 7 is depicted.

[0055] See Figure 3 , Figure 4 and Figure 7 In some embodiments, the liquid formulation filling machine further includes a conveying mechanism 2, which includes a drive roller 201, a mounting frame 202, a stepper motor 203, and a conveyor belt 204. The drive roller 201 is mounted on the mounting frame 202 and rotates on the mounting frame 202. One end of the mounting frame 202 is connected to a fixed frame 3. The stepper motor 203 is mounted on the mounting frame 202, and the rotating shaft of the stepper motor 203 is connected to one end of the drive roller 201 via a belt.

[0056] The stepper motor 203 rotates, which in turn drives the transmission roller 201 to rotate via a belt, thereby causing the conveyor belt 204 to move around the transmission roller 201. Furthermore, a limiting frame 16 is provided on the conveyor belt 204 to hold the sterile container 15. As the conveyor belt 204 moves, the limiting frame 16, carrying the sterile container 15, moves synchronously with the conveyor belt 204.

[0057] Furthermore, the limiting frame 16 is formed by multiple limiting rods 17. These limiting rods 17 are not interconnected, but their bottom surfaces are connected to the conveyor belt 204, which is a rubber-metal composite belt. The metal portion of the conveyor belt 204 is divided into multiple segments along its width, allowing the limiting rods 17 to expand laterally as they pass the drive roller 201, and to reassemble into the limiting frame 16 as they move away from the drive roller 201. Preferably, there are multiple limiting frames 16 arranged side-by-side along the length of the conveyor belt 204.

[0058] Work process

[0059] First, the rotating shaft of the stepper motor 203 rotates, driving the transmission roller 201 to rotate via a belt. The conveyor belt 204 on the transmission roller 201 moves, causing the limiting frame 16 to move. The sterile container 15 is fixed by the limiting frame 16 and moves synchronously until the sterile container 15 moves below the filling head 7. Then, the rotating shaft of the drive motor 6 rotates, the driving gear 501 rotates, and the driven gear 502 rotates synchronously. The first toothed plate 503 and the second toothed plate 504 are subjected to a downward force, and the moving frame 4 moves downward on the fixed frame 3, while the dyeing connecting frame 18 moves downward synchronously. Until the upper end of the drive gear 501 abuts against the first limit block 11, the liquid outlet on the filling head 7 on the connecting frame 18 enters the sterile container 15. The controller 10 controls the solenoid valve 9 to open. The liquid medicine in the filling box 13 is drawn by gravity from the filling box 13 through the filling hose 14 into the filling head 7, and then through the liquid outlet of the filling head 7 into the sterile container 15. The liquid level sensor 8 detects the liquid level in the sterile container 15. When the liquid level in the sterile container 15 reaches the preset standard, the liquid level sensor 8 sends an electrical signal to the controller 10. The controller 10 responds to the electrical signal and sends a command to the solenoid valve 9 to close the solenoid valve 9, thus completing the quantitative filling of the sterile container 15.

[0060] In the above embodiments, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0061] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A liquid formulation filling machine, characterized in that, The utility model relates to a filling device for filling liquid into a sterile container, which comprises: a base, a fixed frame arranged on the top surface of the base, a moving frame arranged on the fixed frame and sliding on the fixed frame, a gear assembly connected with the moving frame, a driving motor connected with the gear assembly, the driving motor arranged on the fixed frame, a filling head arranged on the moving frame, a liquid level sensor arranged on the filling head, an electromagnetic valve arranged on the filling head, the electromagnetic valve electrically connected with a controller, the controller electrically connected with the liquid level sensor, the controller used for controlling the opening and closing of the electromagnetic valve, the gear assembly comprising a driving gear and a first toothed plate, the driving gear arranged on the rotating shaft of the driving motor, the first toothed plate arranged on the moving frame, the first toothed plate engaged with the driving gear, the upper end of the first toothed plate provided with a first limiting block, and the lower end of the first toothed plate provided with a second limiting block; when the first limiting block abuts against the driving gear, the filling head is in a first horizontal position, i.e. a position for filling liquid into the sterile container; when the second limiting block abuts against the driving gear, the filling head is in a second horizontal position, i.e. a position away from the sterile container.

2. The liquid preparation filling machine according to claim 1, characterized by The gear assembly further comprises a driven gear, a second toothed plate and a bearing plate; the driven gear rotatably arranged on the bearing plate, the driven gear engaged with the driving gear; the second toothed plate arranged on the moving frame and away from the first toothed plate, the second toothed plate engaged with the driven gear; the bearing plate arranged on the fixed frame, the bearing plate provided with a through hole, the rotating shaft of the driving motor passing through the through hole and connected with the driving gear.

3. The liquid formulation filler machine according to claim 2, characterized in that, The base is provided with a filling tank, the filling tank connected with the filling head through a filling hose, the horizontal position of the filling tank higher than the second horizontal position, so that the liquid in the filling tank enters the filling head.

4. The liquid formulation filling machine according to claim 3, characterized by The utility model further comprises a conveying mechanism, the conveying mechanism comprising a transmission roller, a mounting frame, a stepping motor and a conveying belt; the transmission roller arranged on the mounting frame and rotatable on the mounting frame; one end of the mounting frame connected with the fixed frame; the stepping motor arranged on the mounting frame, the rotating shaft of the stepping motor connected with one end of the transmission roller through a belt.

5. The liquid formulation filler machine according to claim 4, characterized in that, The conveying belt is provided with a limiting frame, the limiting frame used for placing the sterile container.

6. The liquid formulation filler machine according to claim 5, characterized in that, The limiting frame is composed of a plurality of limiting rods.

7. The liquid formulation filler machine according to claim 6, characterized in that, There are a plurality of limiting frames, the plurality of limiting frames arranged side by side on the conveying belt along the length direction of the conveying belt.

8. The liquid formulation filler machine according to claim 7, characterized in that, The utility model further comprises a connecting frame, the connecting frame arranged on the moving frame, the free end of the connecting frame provided with a clamping ring, and the outlet end of the filling head at least partially passing through the inner ring of the clamping ring.

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