Automatic uniform liquid filling device

Abstract

The utility model relates to an automatic uniform liquid filling device which comprises a rack, a fixing plate used for fixing a liquid medicine bottle is arranged above the rack, one side of the rack is connected with a liquid injection assembly, the liquid injection assembly comprises a liquid injection pipe, and the liquid injection pipe is connected with a liquid conveying piece used for conveying liquid medicine into the liquid injection pipe; the end, directly facing the fixing plate, of the liquid injection pipe is connected with a liquid injection head, a liquid injection piston is arranged in the liquid injection pipe, and the end, away from the liquid injection head, of the liquid injection piston is connected with a control assembly. When a liquid medicine bottle is filled with liquid, the control assembly opens the liquid conveying part and controls the liquid injection piston to slide in the direction away from the liquid injection head until the liquid medicine in the liquid injection pipe reaches the preset amount, the control assembly closes the liquid conveying part and controls the liquid injection piston to slide in the direction close to the liquid injection head, and the preset amount of liquid medicine is injected into the liquid medicine bottle; and by controlling the amount of the liquid medicine filled into the liquid medicine bottle, the liquid medicine filling precision is improved, and meanwhile the risk that the liquid medicine is polluted is reduced.

Description

Technical Field

[0001] The present application relates to the field of liquid medicine filling, and in particular to an automatic uniform liquid filling device. Background Art

[0002] Medical reagent filling refers to the process of filling the prepared liquid medicine into medicine bottles. The medical reagent automated filling production line plays an important role in improving production efficiency, reducing production costs, and ensuring product quality.

[0003] At present, there is a filling machine for a liquid medicine filling production line. During the process of filling the liquid medicine, a liquid level probe is inserted into the filling bottle. When the liquid medicine filling reaches a predetermined amount, the liquid medicine contacts the liquid level probe. At this time, the liquid level probe sends a signal to the external control and controls the switch valve to close and stop the addition of liquid medicine, thereby being able to accurately control the filling of the liquid medicine.

[0004] With respect to the above-mentioned related technologies, the drug liquid contacts the liquid level probe, which poses a risk of contamination of the drug liquid. Summary of the invention

[0005] In order to improve the filling accuracy of liquid medicine and reduce the risk of liquid medicine being contaminated, the present application provides an automatic uniform liquid filling device.

[0006] The present application provides an automatic uniform liquid filling device adopting the following technical solution:

[0007] An automatic uniform liquid filling device comprises a frame, a fixed plate for fixing a medicine bottle is provided above the frame, a liquid injection assembly is connected to one side of the frame, the liquid injection assembly comprises a liquid injection tube, the liquid injection tube is connected to an infusion piece for transporting medicine into the liquid injection tube, and the infusion piece is connected to the frame; the extension direction of the liquid injection tube is perpendicular to the plane where the fixed plate is located, and the end of the liquid injection tube facing the fixed plate is connected to a liquid injection head, an liquid injection piston is provided in the liquid injection tube, and the end of the liquid injection piston facing away from the liquid injection head is connected to a control assembly for controlling the liquid injection piston to slide along a direction parallel to the extension direction of the liquid injection tube, and the control assembly is electrically connected to the infusion piece.

[0008] By adopting the above technical solution, when the medicine bottle is filled with liquid, the control component works, the control component opens the infusion piece and controls the injection piston to slide in the direction away from the injection head until the medicine in the injection tube reaches a predetermined amount, the control component closes the infusion piece and controls the injection piston to slide in the direction close to the injection head, and injects a predetermined amount of medicine into the medicine bottle; the amount of medicine poured into the medicine bottle is controlled by the control component and the injection tube, thereby improving the filling accuracy of the medicine to a certain extent and reducing the risk of contamination of the medicine.

[0009] Optionally, the control component includes a controller connected to the frame, the controller is electrically connected to the infusion component, and the end of the injection piston facing away from the injection head is connected to a power component for driving the injection piston to slide and a sensing component for measuring the sliding distance of the injection piston, and the power component and the sensing component are both electrically connected to the controller.

[0010] By adopting the above technical solution, when a predetermined amount of liquid medicine is input into the injection tube, the controller opens the infusion component and controls the power component to drive the injection piston to slide in the direction away from the injection head until the sensing component senses that the injection piston has slid to the specified position. The sensing component sends a signal to the controller, and the controller turns off the power component, thereby inputting a predetermined amount of liquid medicine into the injection tube by controlling the movement distance of the injection piston.

[0011] Optionally, the sensing element includes a baffle connected to the frame, the baffle is located on the side of the injection piston away from the injection head, and a pressure sensor is connected to the side of the baffle facing the injection piston, and the pressure sensor is electrically connected to the controller.

[0012] By adopting the above technical solution, when a predetermined amount of liquid medicine is injected into the injection tube, the controller opens the infusion piece and controls the power piece to drive the injection piston to slide away from the injection head until the side of the injection piston away from the injection head abuts against the pressure sensor, and the pressure sensor sends a signal to the controller, and the controller turns off the power piece.

[0013] Optionally, the power component includes a stepper motor connected to the frame, the stepper motor is electrically connected to the controller, the output shaft of the stepper motor is connected to a screw rod and the arrangement direction of the screw rod is parallel to the extension direction of the injection tube, the screw rod is threadedly connected to a moving block and the moving block is connected to the injection piston.

[0014] By adopting the above technical solution, when the power member drives the injection piston to slide, the controller turns on the stepper motor, the stepper motor drives the lead screw to rotate, and the lead screw drives the injection piston to slide through the moving block.

[0015] Optionally, the infusion component includes an infusion tube, one end of which is connected to the injection tube, and the other end of which is connected to a liquid storage tank. An infusion pump is provided between the infusion tube and the liquid storage tank, and the infusion pump is electrically connected to the control component.

[0016] By adopting the above technical solution, when the infusion piece delivers liquid medicine into the injection tube, the control component turns on the infusion pump, and the infusion pump transports the liquid medicine to the injection tube through the infusion tube.

[0017] Optionally, the injection tube is provided with an infusion valve, and the infusion valve is electrically connected to the controller.

[0018] By adopting the above technical solution, when the infusion piece transports the medicine into the injection tube, the control component opens the infusion valve and the injection tube is connected to the liquid storage tank; when the infusion piece stops transporting the medicine into the injection tube, the control component closes the infusion valve, thereby reducing the risk of the medicine in the injection tube flowing back into the liquid storage tank.

[0019] Optionally, an elastic rubber sleeve is provided between the injection piston and the injection tube.

[0020] By adopting the above technical solution, the elastic rubber sleeve is located between the injection piston and the injection tube, thereby enhancing the sealing performance of the injection tube.

[0021] Optionally, a fixing groove matching the medicine liquid bottle is formed on a side of the fixing plate facing the injection tube.

[0022] By adopting the above technical solution, during the process of filling the medicine bottle with liquid medicine, the medicine bottle is placed in the fixed groove, and the medicine bottle is limited by the fixed groove, so that the medicine bottle is more stable during the filling process.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When filling the medicine bottle, the control component works, the control component opens the infusion component and controls the injection piston to slide away from the injection head until the medicine in the injection tube reaches a predetermined amount, then the control component closes the infusion component and controls the injection piston to slide toward the injection head, injecting the predetermined amount of medicine into the medicine bottle; the amount of medicine poured into the medicine bottle is controlled by the control component and the injection tube, thereby improving the filling accuracy of the medicine to a certain extent and reducing the risk of contamination of the medicine;

[0025] 2. When a predetermined amount of liquid medicine is input into the injection tube, the controller opens the infusion component and controls the power component to drive the injection piston to slide in a direction away from the injection head until the sensing component senses that the injection piston has slid to a specified position. The sensing component sends a signal to the controller, and the controller turns off the power component, thereby inputting a predetermined amount of liquid medicine into the injection tube by controlling the moving distance of the injection piston;

[0026] 3. When a predetermined amount of liquid medicine is injected into the injection tube, the controller opens the infusion component and controls the power component to drive the injection piston to slide away from the injection head until the side of the injection piston facing away from the injection head abuts against the pressure sensor. The pressure sensor sends a signal to the controller, and the controller turns off the power component. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0028] Figure 2 is a schematic cross-sectional structural diagram of an embodiment of the present application;

[0029] Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A;

[0030] In the figure: 1. frame; 2. fixing plate; 21. fixing groove; 3. injection assembly; 31. injection tube; 32. infusion part; 321. infusion tube; 322. liquid storage tank; 323. infusion pump; 324. infusion valve; 33. injection head; 34. injection piston; 35. elastic rubber sleeve; 4. control assembly; 41. controller; 42. power part; 421. stepping motor; 422. screw rod; 423. moving block; 43. induction part; 431. baffle; 432. pressure sensor; 5. medicine bottle. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The present application embodiment discloses an automatic uniform liquid filling device. Figure 1 and Figure 2 An automatic uniform liquid filling device includes a frame 1, a fixing plate 2 for fixing a liquid medicine bottle 5 is arranged above the frame 1, and a fixing groove 21 matching the liquid medicine bottle 5 is arranged on one side of the outer wall of the fixing plate 2; a liquid injection assembly 3 and an infusion piece 32 are connected to one side of the frame 1, and the liquid injection assembly 3 includes a liquid injection tube 31, and the liquid injection tube 31 is connected to the infusion piece 32 and the infusion piece 32 is used to transport liquid medicine into the liquid injection tube 31; the extension direction of the liquid injection tube 31 is perpendicular to the plane where the fixing plate 2 is located, and ... The end facing the fixed plate 2 is connected with a liquid injection head 33, which includes a liquid injection tube (not shown in the figure) and a solenoid valve (not shown in the figure) located at one end of the liquid injection tube 31, and the liquid injection tube is connected with the liquid injection tube 31; a liquid injection piston 34 is arranged in the liquid injection tube 31, and the end of the liquid injection piston 34 away from the liquid injection head 33 is connected with a control component 4 for controlling the liquid injection piston 34 to slide along the extending direction parallel to the liquid injection tube 31, and the control component 4 is electrically connected with the infusion part 32 and the solenoid valve.

[0033] When filling the medicine bottle 5, first put the medicine bottle 5 into the fixed groove 21, limit the medicine bottle 5 by the fixed groove 21, and then control the component 4 to start, the control component 4 opens the infusion component 32 and controls the injection piston 34 to slide in the direction away from the injection head 33 until the medicine in the injection tube 31 reaches a predetermined amount, the control component 4 closes the infusion component 32 and opens the solenoid valve, and then the control component 4 controls the injection piston 34 to slide in the direction close to the injection head 33 until a predetermined amount of medicine is injected into the medicine bottle 5 from the injection tube 31 through the injection head 33, and the control component 4 stops working; the amount of medicine poured into the medicine bottle 5 is controlled by the control component 4 and the injection tube 31, thereby improving the filling accuracy of the medicine and reducing the risk of contamination of the medicine to a certain extent.

[0034] Reference Figure 1 and Figure 2 The control component 4 includes a controller 41 connected to the frame 1, the controller 41 is electrically connected to the infusion component 32, and the end of the injection piston 34 away from the injection head 33 is connected to a power component 42 for driving the injection piston 34 to slide and a sensing component 43 for measuring the sliding distance of the injection piston 34, and the power component 42 is electrically connected to the controller 41; the sensing component 43 includes a baffle 431 connected to the frame 1, the baffle 431 is located on the side of the injection piston 34 away from the injection head 33, the plane where the baffle 431 is located is perpendicular to the sliding direction of the injection piston 34, and the side of the baffle 431 facing the injection piston 34 is connected to a pressure sensor 432, and the pressure sensor 432 is electrically connected to the controller 41.

[0035] When a predetermined amount of liquid medicine is input into the injection tube 31, the controller 41 opens the infusion component 32 and controls the power component 42 to drive the injection piston 34 to slide in the direction away from the injection head 33 until the side of the injection piston 34 facing away from the injection head 33 abuts against the pressure sensor 432. The pressure sensor 432 sends a signal to the controller 41 that the injection piston 34 has slid to the predetermined position. Then the controller 41 closes the power component 42, thereby inputting a predetermined amount of liquid medicine into the injection tube 31 by controlling the moving distance of the injection piston 34.

[0036] Reference Figure 2 and Figure 3 The power part 42 includes a stepper motor 421 connected to the frame 1, the stepper motor 421 is electrically connected to the controller 41, the extension direction of the output shaft of the stepper motor 421 is parallel to the extension direction of the injection tube 31, the output shaft of the stepper motor 421 is also connected to a screw rod 422 and the arrangement direction of the screw rod 422 is parallel to the extension direction of the injection tube 31, the screw rod 422 is threadedly connected to a moving block 423 and the moving block 423 is connected to one end of the injection piston 34 away from the injection head 33, and an elastic rubber sleeve 35 is provided between the injection piston 34 and the injection tube 31.

[0037] The elastic rubber sleeve 35 is located between the injection piston 34 and the injection tube 31, which enhances the sealing performance of the injection tube 31, thereby reducing the risk of contamination of the liquid medicine in the injection tube 31; when the power part 42 drives the injection piston 34 to slide, the controller 41 starts to work, and the controller 41 turns on the stepper motor 421. The output shaft of the stepper motor 421 drives the screw rod 422 to rotate, and then drives the moving block 423 connected to the screw rod 422 to move in a direction parallel to the extension of the infusion tube 321, and then the moving block 423 drives the injection piston 34 to slide in a direction parallel to the extension of the infusion tube 321.

[0038] Reference Figure 1 and Figure 2 The infusion component 32 includes an infusion tube 321, one end of which is connected to the injection tube 31, and the other end of the infusion tube 321 is connected to a liquid storage tank 322. An infusion pump 323 is provided between the infusion tube 321 and the liquid storage tank 322, and the infusion pump 323 is electrically connected to the controller 41. An infusion valve 324 is provided on the injection tube 31, and the infusion valve 324 is electrically connected to the controller 41. When the infusion component 32 delivers liquid medicine to the injection tube 31, the control component 4 opens the infusion valve 32 4, so that the injection tube 31 is connected with the liquid storage tank 322, and then the control component 4 turns on the infusion pump 323, and the infusion pump 323 transports the medicine liquid to the injection tube 31 through the infusion tube 321, until a predetermined amount of medicine liquid is injected into the medicine bottle 5 from the injection tube 31 through the injection head 33, and the control component 4 turns off the infusion pump 323 and the infusion valve 324, thereby reducing the risk of the medicine liquid in the injection tube 31 flowing back into the liquid storage tank 322 during the process of filling the medicine bottle 5.

[0039] The implementation principle of an automatic uniform filling device in the embodiment of the present application is as follows: when filling the medicine bottle 5, the medicine bottle 5 is placed in the fixed groove 21, and the medicine bottle 5 is limited by the fixed groove 21, and then the control component 4 works, the control component 4 opens the infusion component 32 and controls the injection piston 34 to slide in the direction away from the injection head 33, until the sensing component 43 senses that the injection piston 34 slides to the specified position, the sensing component 43 sends a signal to the controller 41, and the controller 41 turns off the power component 42, thereby inputting a predetermined amount of medicine into the injection tube 31 by controlling the moving distance of the injection piston 34, and then the control component 4 controls the injection piston 34 to slide in the direction close to the injection head 33 through the power component 42, and injects a predetermined amount of medicine into the medicine bottle 5; the amount of medicine poured into the medicine bottle 5 is controlled by the control component 4 and the injection tube 31, thereby improving the filling accuracy of the medicine to a certain extent and reducing the risk of contamination of the medicine.

[0040] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic uniform liquid filling device, characterized in that: The invention comprises a frame (1), wherein a fixing plate (2) for fixing a medicine bottle (5) is provided above the frame (1), and an injection assembly (3) is connected to one side of the frame (1), wherein the injection assembly (3) comprises an injection tube (31), wherein the injection tube (31) is connected to an infusion piece (32) for transporting medicine into the injection tube (31), and wherein the infusion piece (32) is connected to the frame (1); wherein the extension direction of the injection tube (31) is perpendicular to the plane where the fixing plate (2) is located, and an injection head (33) is connected to one end of the injection tube (31) facing the fixing plate (2); an injection piston (34) is provided in the injection tube (31), and an end of the injection piston (34) facing away from the injection head (33) is connected to a control assembly (4) for controlling the injection piston (34) to slide along a direction parallel to the extension direction of the injection tube (31), and wherein the control assembly (4) is electrically connected to the infusion piece (32).

2. The automatic uniform liquid filling device according to claim 1, characterized in that: The control assembly (4) comprises a controller (41) connected to the frame (1); the controller (41) is electrically connected to the infusion member (32); an end of the injection piston (34) facing away from the injection head (33) is connected to a power member (42) for driving the injection piston (34) to slide and a sensing member (43) for measuring the sliding distance of the injection piston (34); the power member (42) and the sensing member (43) are both electrically connected to the controller (41).

3. The automatic uniform liquid filling device according to claim 2, characterized in that: The sensing element (43) comprises a baffle (431) connected to the frame (1); the baffle (431) is located on a side of the injection piston (34) facing away from the injection head (33); a pressure sensor (432) is connected to a side of the baffle (431) facing the injection piston (34); and the pressure sensor (432) is electrically connected to the controller (41).

4. The automatic uniform liquid filling device according to claim 2, characterized in that: The power member (42) comprises a stepper motor (421) connected to the frame (1); the stepper motor (421) is electrically connected to the controller (41); the output shaft of the stepper motor (421) is connected to a screw rod (422); the arrangement direction of the screw rod (422) is parallel to the extension direction of the injection pipe (31); the screw rod (422) is threadedly connected to a moving block (423); and the moving block (423) is connected to the injection piston (34).

5. The automatic uniform liquid filling device according to claim 1, characterized in that: The infusion component (32) comprises an infusion tube (321), one end of the infusion tube (321) being in communication with the injection tube (31), the other end of the infusion tube (321) being connected to a liquid storage tank (322), an infusion pump (323) being provided between the infusion tube (321) and the liquid storage tank (322), and the infusion pump (323) being electrically connected to a control component (4).

6. The automatic uniform liquid filling device according to claim 5, characterized in that: The injection tube (31) is provided with an infusion valve (324), and the infusion valve (324) is electrically connected to the controller (41).

7. The automatic uniform liquid filling device according to claim 1, characterized in that: An elastic rubber sleeve (35) is provided between the liquid injection piston (34) and the liquid injection tube (31).

8. The automatic uniform liquid filling device according to claim 1, characterized in that: A fixing groove (21) matching with the medicine liquid bottle (5) is provided on a side of the fixing plate (2) facing the injection tube (31).

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