Automatic liquid injection device capable of automatically checking liquid amount

Abstract

The utility model discloses an automatic liquid injection device capable of automatically checking liquid quantity, which comprises a working platform, an XYZ three-direction driving component is mounted on the working platform, a lifting seat is mounted at the output end of the XYZ three-direction driving component, a plurality of liquid injection valves are mounted on the side surface of the lifting seat at intervals through a spacing adjusting mechanism, and the spacing adjusting mechanism is used for adjusting the spacing between the adjacent liquid injection valves; each liquid injection valve is used for synchronously injecting liquid into each hollow pipe in the nest box below the liquid injection valve; the device further comprises a liquid amount checking mechanism. Quantitative liquid is injected into the hollow pipe through the liquid injection valve in combination with movement of the XYZ three-direction driving assembly; in actual use, the distance between the adjacent liquid injection valves can be adjusted through the distance adjusting mechanism, so that liquid injection of hollow tubes of different models of nest boxes is met, operation is convenient, and use flexibility in actual production is effectively improved; before liquid is injected into the hollow pipe, the liquid injection amount of the liquid injection valve can be verified through the liquid amount verification mechanism, and the liquid injection valve is particularly suitable for verification before formal filling of starting up, so that the requirement is met, and the precision range of the filling amount is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic liquid injection devices, in particular to an automatic liquid injection device capable of automatically checking the amount of liquid. Background Art

[0002] Quantitative filling is an important step in the liquid medicine packaging process.

[0003] In the prior art, although the filling equipment uses a standard injection valve to perform quantitative filling, it is impossible to verify or provide feedback on the filling volume. It often needs to be discovered in the subsequent quality inspection process, resulting in great waste. Especially in the startup stage or the liquid replacement stage, due to the influence of factors such as gas in the pipeline, it is very easy to cause inaccurate filling liquid volume.

[0004] On the other hand, existing filling equipment can only be used for injection at fixed intervals. In actual production, the injection tubes often change or even are updated according to demand. Changes in the intervals between the injection tubes will cause the filling equipment to be unsuitable, and the flexibility in actual production is low. Utility Model Content

[0005] In order to solve the above problems, the present application provides an automatic liquid filling device with a reasonable structure that can automatically verify the liquid volume, so that it can meet the needs of filling hollow tubes in nest boxes of different models. It is easy to operate, effectively improves the flexibility of use in actual production, and can verify the injection volume. It is particularly suitable for verification before starting the machine for formal filling, which helps to meet and ensure the accuracy range of the filling volume.

[0006] The technical solution adopted by the utility model is as follows:

[0007] An automatic liquid injection device capable of automatically verifying the amount of liquid comprises a working platform, an XYZ three-way drive assembly is installed on the working platform, a lifting seat is installed at the output end of the XYZ three-way drive assembly, a plurality of liquid injection valves are installed at intervals on the side of the lifting seat via a spacing adjustment mechanism, and the spacing adjustment mechanism adjusts the spacing between adjacent liquid injection valves; each liquid injection valve synchronously injects liquid into each empty tube in a nest box below; and also comprises a liquid amount verification mechanism.

[0008] As a further improvement of the above technical solution:

[0009] The structure of the spacing adjustment mechanism is as follows: it includes a translation cylinder installed on the side of the lifting seat, a guide rail assembly is horizontally installed on the side of the lifting seat located below the translation cylinder, and multiple valve seats are slidably mounted on the guide rail assembly; a fixed seat is fixed at one end of the guide rail assembly, and the first valve seat located at the other end of the guide rail assembly is connected to the output end of the translation cylinder; an adjustment block is installed between adjacent valve seats and between the fixed seat and adjacent valve seats; and liquid injection valves are installed on the sides of the fixed seat and the valve seat, respectively.

[0010] The valve seat connected to the translation cylinder is the active seat, and the other valve seats are passive seats; the number of the passive seats is an odd number, and an adjusting block is fixedly installed on the top surface of the odd-numbered passive seat starting from the active seat, and the left and right ends of the adjusting block extend to form a convex block, which is clamped into the groove of the adjacent valve seat or the fixed seat; the width of the groove is greater than the width of the convex block.

[0011] The structure of the liquid volume calibration mechanism is as follows: it includes a vertical cylinder, the output end of the vertical cylinder is equipped with a rotation driving power through a lifting plate, a turning table is installed at the output end of the rotation driving power, a plurality of sample tubes are arranged and installed on the top surface of the turning table, and the sample tubes correspond to the injection valves one by one; a weighing sensor is installed under each sample tube.

[0012] The utility model also comprises a liquid collecting tank, and the rotating driving power drives the turning table to rotate, and the liquid in the sample tube is poured into the liquid collecting tank.

[0013] A dripping tank is also provided between the liquid collecting tank and the weighing sensor.

[0014] The structure of the flip table is as follows: it includes a flip seat installed at the output end of the rotating drive power, clamping cylinders are installed in parallel at intervals on the top surface of the flip seat, and clamping seats parallel to each other are installed between the two clamping cylinders, and multiple clamping holes for clamping and accommodating sample tubes are formed between the two clamping seats.

[0015] The weighing sensor is supported by a floor stand and mounted just below each sample tube.

[0016] The working platform is also provided with a transfer mechanism, which supports the nest box and transfers it to the next process through the transfer mechanism after liquid injection.

[0017] The structure of the transfer mechanism is as follows: it includes a synchronous belt transmission assembly and a guide rail installed horizontally and parallelly on the working platform, a moving seat is slidably installed on the guide rail, and the moving seat is fixed on the synchronous belt of the synchronous belt transmission assembly through a tooth pressure block; a lifting cylinder is installed on the side of the moving seat, and a U-shaped support with an opening facing outward is installed on the output end of the lifting cylinder, and the U-shaped support supports the nest box through a positioning boss limit.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model is easy to use. In actual use, the distance between adjacent injection valves can be adjusted through the spacing adjustment mechanism to meet the injection of hollow tubes in nest boxes of different models. The operation is convenient and the flexibility of use in actual production is effectively improved. Before injecting liquid into the empty tube, the injection volume of the injection valve can be verified by the liquid volume verification mechanism, which is particularly suitable for verification before starting the machine for formal filling, and helps to meet and ensure the accuracy range of the filling volume.

[0020] The utility model also has the following advantages:

[0021] The weighing sensor is supported on the ground by a floor bracket. The floor bracket passes upward through the working platform and then the weighing sensor is installed, which effectively ensures the accuracy of the weighing sensor and prevents it from being affected by the movement and vibration of other moving mechanisms on the working platform.

[0022] After liquid is injected into the sample tube through the injection valve, the vertical cylinder drives the lifting plate downward so that the sample tube support acts on the weighing sensor below, and the weighing sensor is used to weigh it; then, the vertical cylinder works in combination with the rotation driving power, and the turning table drives the sample tube to turn over, and the liquid in the sample tube is poured into the liquid collecting tank, so as to realize the centralized treatment of the liquid; and the dripping tank can receive the dripping liquid of the sample tube during the turning process of the sample turning table. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2 It is an exploded view of the spacing adjustment mechanism of the utility model.

[0025] Figure 3 It is a schematic diagram of spacing adjustment of the spacing adjustment mechanism of the utility model.

[0026] Figure 4 It is a structural schematic diagram of the liquid volume calibration mechanism of the utility model.

[0027] Figure 5 It is a structural schematic diagram of the turning table of the utility model.

[0028] Figure 6 It is a structural schematic diagram of the transfer mechanism of the utility model.

[0029] Among them: 1. working platform; 2. transfer mechanism; 3. nest box; 4. XYZ three-way drive assembly; 5. spacing adjustment mechanism; 6. injection valve; 7. liquid volume calibration mechanism;

[0030] 21. Synchronous belt drive assembly; 22. Tooth pressure block; 23. Moving seat; 24. Lifting cylinder; 25. U-shaped support; 26. Positioning boss;

[0031] 41. Lifting seat;

[0032] 51. Translation cylinder; 52. Guide rail assembly; 53. Adjustment block; 54. Valve seat; 55. Fixed seat; 56. Groove; 531. Protrusion; 541. Active seat; 542. Passive seat;

[0033] 71. Vertical cylinder; 72. Lifting plate; 73. Rotational driving power; 74. Sample tube; 75. Turning table; 76. Weighing sensor; 77. Drip tank; 78. Liquid collecting tank; 79. Floor stand; 751. Turning seat; 752. Clamping cylinder; 753. Clamping seat; 7511. Long hole. DETAILED DESCRIPTION

[0034] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0035] like Figure 1 As shown, the automatic liquid injection device of this embodiment that can automatically verify the liquid amount includes a working platform 1, an XYZ three-way driving component 4 is installed on the working platform 1, a lifting seat 41 is installed at the output end of the XYZ three-way driving component 4, and a plurality of liquid injection valves 6 are installed at intervals on the side of the lifting seat 41 through a spacing adjustment mechanism 5, and the spacing adjustment mechanism 5 adjusts the spacing between adjacent liquid injection valves 6; each liquid injection valve 6 synchronously injects liquid into each empty tube in the lower nest box 3; and also includes a liquid amount verification mechanism 7.

[0036] In this embodiment, in actual use, the spacing between adjacent injection valves 6 can be adjusted via the spacing adjustment mechanism 5 to meet the needs of filling hollow tubes in nest boxes 3 of different models, and the operation is convenient; before filling the empty tube, the liquid volume verification mechanism 7 can verify the injection volume of the injection valve 6, which is particularly suitable for verification before starting the machine for formal filling.

[0037] like Figure 2 As shown, the structure of the spacing adjustment mechanism 5 is as follows: it includes a translation cylinder 51 installed on the side of the lifting seat 41, a guide rail assembly 52 is horizontally installed on the side of the lifting seat 41 below the translation cylinder 51, and a plurality of valve seats 54 are slidably mounted on the guide rail assembly 52; a fixed seat 55 is fixedly installed at one end of the guide rail assembly 52, and the first valve seat 54 located at the other end of the guide rail assembly 52 is connected to the output end of the translation cylinder 51; an adjustment block 53 is installed between adjacent valve seats 54 and between the fixed seat 55 and the adjacent valve seat 54; and liquid injection valves 6 are installed on the sides of the fixed seat 55 and the valve seat 54, respectively.

[0038] In this embodiment, with the fixed seat 55 as the fixed point, the action of the translation cylinder 51, combined with the limit of the adjustment block 53, enables the valve seat 54 to move guided by the guide rail assembly 52, thereby adjusting the distance between adjacent valve seats 54 and the distance between the valve seat 54 and the fixed seat 55, thereby realizing the adjustment of the distance between the injection valves 6.

[0039] When the translation cylinder 51 is pushed outward, the valve seat 54 moves away from the fixed seat 55 in combination with the adjustment block 53. When the translation cylinder 51 is retracted, the valve seat 54 moves toward the fixed seat 55, thereby adjusting the distance between the valve seats 54.

[0040] like Figure 3 As shown, the valve seat 54 connected to the translation cylinder 51 is the active seat 541, and the other valve seats 54 are passive seats 542; the number of passive seats 542 is an odd number, and an adjusting block 53 is fixedly installed on the top surface of the odd-numbered passive seat 542 starting from the active seat 541, and the left and right ends of the adjusting block 53 extend to form a protrusion 531, which is clamped into the groove 56 of the adjacent valve seat 54 or the fixed seat 55 by the protrusion 531; the width dimension of the groove 56 is larger than the width dimension of the protrusion 531, and the distance adjustment is achieved through the relative movement of the protrusion 531 in the groove 56.

[0041] In this embodiment, the widths of the protrusions 531 on the adjustment block 53 are the same, and the widths of all the grooves 56 are the same, so that the spacings between the valve seats 54 are the same during the adjustment process, achieving equidistance.

[0042] In this embodiment, the same group of adjustment blocks 53 can be combined with the action of the translation cylinder 51 to achieve the adjacent injection valves 6 at a large distance (such as Figure 3 as shown in the figure above) or small spacing (such as Figure 3 In actual use, the adjustment block 53 with different sizes of protrusions 531 can be replaced to be suitable for flexible adjustment and use of more spacings; in this embodiment, the adjustment block 53 is clamped and matched above the valve seat 54, which is easy to replace and easy to operate.

[0043] exist Figure 3 In the illustrated embodiment, the valve seat 54 includes an active seat 541 connected to the output end of the translation cylinder 51 and three passive seats 542 connected via an adjusting block 53 structure; two adjusting blocks 53 are provided, one adjusting block 53 connects the active seat 541, the adjacent passive seat 542, and the middle passive seat 542, and the other adjusting block 53 connects the fixed seat 55, the adjacent passive seat 542, and the middle passive seat 542, so that when the translation cylinder 51 is actuated, the spacing between each valve seat 54 and the fixed seat 55 is achieved in combination with the adjusting block 53.

[0044] exist Figure 3 In the illustrated embodiment, the upper figure is a schematic diagram of the spacing when the translation cylinder 51 is pushed out, and the lower figure is a schematic diagram of the spacing when the translation cylinder 51 is retracted. The spacing is adjusted in the two states, and the respective spacings are uniform in each state.

[0045] like Figure 4 As shown, the structure of the liquid volume calibration mechanism 7 is: it includes a vertical cylinder 71, the output end of the vertical cylinder 71 is installed with a rotation driving power 73 through a lifting plate 72, the output end of the rotation driving power 73 is installed with a turning table 75, and a plurality of sample tubes 74 are arranged and installed on the top surface of the turning table 75, and the sample tubes 74 correspond to the injection valves 6 one by one; and a weighing sensor 76 is correspondingly installed under each sample tube 74.

[0046] In this embodiment, after liquid is injected into the sample tube 74 through the injection valve 6, the vertical cylinder 71 drives the lifting plate 72 downward so that the sample tube 74 is supported and acts on the weighing sensor 76 below, and the weighing sensor 76 is used for weighing to realize liquid quantity verification.

[0047] In this embodiment, the rotational driving power 73 can be an existing standard product such as a motor or a turntable that outputs rotational power.

[0048] The liquid collecting tank 78 is also included. The rotation driving power 73 drives the turning table 75 to rotate, and the liquid in the sample tube 74 is poured into the liquid collecting tank 78.

[0049] After the sample tube 74 is filled with liquid and weighed, the vertical cylinder 71 works in conjunction with the rotation driving power 73, and the turning table 75 drives the sample tube 74 to turn over, and the liquid in the sample tube 74 is poured into the liquid collecting tank 78, so as to realize the centralized treatment of the liquid.

[0050] A dripping tank 77 is also provided between the liquid collecting tank 78 and the weighing sensor 76 , and the dripping tank 77 can receive the dripping liquid of the sample tube 74 during the turning process of the turning platform 75 .

[0051] like Figure 5 As shown, the structure of the flip table 75 is: it includes a flip seat 751 installed at the output end of the rotating driving power 73, and clamping cylinders 752 are installed in parallel on the top surface of the flip seat 751. A clamping seat 753 parallel to each other is installed between the two clamping cylinders 752, and a plurality of clamping holes for clamping and accommodating the sample tube 74 are formed between the two clamping seats 753.

[0052] Through the synchronous operation of the clamping cylinder 752, the opening and closing switching between the clamping seats 753 is realized, which is convenient for taking, placing and replacing the sample tube 74.

[0053] In this embodiment, a long hole 7511 for accommodating the sample tube 74 is further provided on the flip seat 751 .

[0054] The weighing sensor 76 is supported by a floor stand 79 and mounted directly below each sample tube 74 .

[0055] In this embodiment, the weighing sensor 76 is supported on the ground via a floor bracket 79. The floor bracket 79 passes upward through the working platform 1 and then the weighing sensor 76 is installed, which effectively ensures the accuracy of the weighing sensor 76 and prevents it from being affected by the movement and vibration of other moving mechanisms on the working platform 1.

[0056] A transfer mechanism 2 is also installed on the working platform 1, and the nest box 3 is supported by the transfer mechanism 2. After the liquid is injected, it is transferred to the next process through the transfer mechanism 2.

[0057] like Figure 6As shown, the structure of the transfer mechanism 2 is: it includes a synchronous belt transmission component 21 and a guide rail installed horizontally and parallelly on the working platform 1, a moving seat 23 is slidably installed on the guide rail, and the moving seat 23 is fixed on the synchronous belt of the synchronous belt transmission component 21 through a tooth pressure block 22; a lifting cylinder 24 is installed on the side of the moving seat 23, and a U-shaped support 25 with an opening facing outward is installed on the output end of the lifting cylinder 24, and the U-shaped support 25 is limited to support the nest box 3 through a positioning boss 26.

[0058] The usage of the utility model is:

[0059] After the nest box 3 is placed on the U-shaped support 25 of the transfer mechanism 2 , the XYZ three-way driving assembly 4 works, and in combination with the opening and closing of the liquid injection valve 6 , liquid is injected into each empty tube in the nest box 3 in sequence.

[0060] Before liquid injection, the spacing between the liquid injection valves 6 can be adjusted by the spacing adjustment mechanism 5 according to the model of the nest box 3 and the spacing distance between adjacent empty tubes to match the empty tube spacing.

[0061] Before the formal filling operation, the liquid filling amount verification program can be started, and its specific process is: the XYZ three-way drive component 4 works, driving the liquid filling valve 6 to move and extend into the sample tube 74, and liquid is injected into the sample tube 74 according to the preset flow rate and time, and then the liquid filling valve 6 withdraws from the sample tube 74; the vertical cylinder 71 in the liquid amount verification mechanism 7 works, so that the sample tube 74 is supported on the weighing sensor 76 downward, and the weighing sensor 76 performs weighing feedback to determine whether the liquid filling amount is qualified; then, with the cooperation of the vertical cylinder 71 and the rotating driving power 73, the liquid in the sample tube 74 is poured into the liquid collecting tank 78 to complete the verification operation.

[0062] In actual use, calibration can be performed every time the machine is turned on, and can also be performed at regular intervals or after every few filling operations, which also helps to ensure the accuracy of filling.

[0063] The utility model meets the requirements of liquid injection of hollow tubes in nest boxes of different models, is easy to operate, effectively improves the flexibility of use in actual production, and can calibrate the injection volume. It is particularly suitable for calibration before starting the machine for formal filling, which helps to meet and ensure the accuracy range of the filling volume.

[0064] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0065] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. An automatic liquid injection device capable of automatically checking the amount of liquid, comprising a working platform (1), characterized in that: The working platform (1) is provided with an XYZ three-way driving assembly (4), the output end of the XYZ three-way driving assembly (4) is provided with a lifting seat (41), a plurality of liquid injection valves (6) are installed on the side of the lifting seat (41) at intervals via a spacing adjustment mechanism (5), and the spacing adjustment mechanism (5) adjusts the spacing between adjacent liquid injection valves (6); each liquid injection valve (6) synchronously injects liquid into each empty tube in the nest box (3) below; and the working platform also includes a liquid volume verification mechanism (7).

2. The automatic liquid filling device capable of automatically checking the liquid volume according to claim 1, characterized in that: The structure of the spacing adjustment mechanism (5) is as follows: it includes a translation cylinder (51) installed on the side of the lifting seat (41), a guide rail assembly (52) is horizontally installed on the side of the lifting seat (41) located below the translation cylinder (51), and a plurality of valve seats (54) are slidably mounted on the guide rail assembly (52); a fixed seat (55) is fixedly installed at one end of the guide rail assembly (52), and the first valve seat (54) located at the other end of the guide rail assembly (52) is connected to the output end of the translation cylinder (51); an adjustment block (53) is installed between adjacent valve seats (54) and between the fixed seat (55) and the adjacent valve seat (54); and injection valves (6) are respectively installed on the sides of the fixed seat (55) and the valve seat (54).

3. The automatic liquid filling device capable of automatically checking the liquid amount as claimed in claim 2, characterized in that: The valve seat (54) connected to the translation cylinder (51) is an active seat (541), and the other valve seats (54) are passive seats (542); the number of the passive seats (542) is an odd number, and an adjustment block (53) is fixedly installed on the top surface of the odd numbered passive seat (542) starting from the active seat (541); the left and right ends of the adjustment block (53) extend to form a protrusion (531), and the protrusion (531) is clamped into the groove (56) of the adjacent valve seat (54) or the fixed seat (55); the width dimension of the groove (56) is greater than the width dimension of the protrusion (531).

4. The automatic liquid filling device capable of automatically checking the liquid amount as claimed in claim 1, characterized in that: The structure of the liquid volume calibration mechanism (7) is as follows: it comprises a vertical cylinder (71), the output end of the vertical cylinder (71) is equipped with a rotation driving power (73) via a lifting plate (72), the output end of the rotation driving power (73) is equipped with a turning table (75), a plurality of sample tubes (74) are arranged and installed on the top surface of the turning table (75), and the sample tubes (74) correspond to the liquid injection valves (6) one by one; and a weighing sensor (76) is correspondingly installed below each sample tube (74).

5. The automatic liquid filling device capable of automatically checking the liquid amount as claimed in claim 4, characterized in that: The invention also comprises a liquid collecting tank (78), and the rotation driving power (73) drives the turning platform (75) to rotate, so that the liquid in the sample tube (74) is poured into the liquid collecting tank (78).

6. The automatic liquid filling device capable of automatically checking the liquid amount as claimed in claim 5, characterized in that: A liquid dripping groove (77) is also provided between the liquid collecting groove (78) and the weighing sensor (76).

7. The automatic liquid filling device capable of automatically checking the liquid amount as claimed in claim 4, characterized in that: The structure of the turning table (75) is as follows: it comprises a turning seat (751) installed at the output end of the rotation driving power (73), a clamping cylinder (752) is installed in parallel with each other on the top surface of the turning seat (751), a clamping seat (753) is installed between the two clamping cylinders (752), and a plurality of clamping holes for clamping and accommodating the sample tube (74) are formed between the two clamping seats (753).

8. The automatic liquid filling device capable of automatically checking the liquid volume as claimed in claim 4, characterized in that: The weighing sensor (76) is supported by a floor stand (79) and mounted directly below each sample tube (74).

9. The automatic liquid filling device capable of automatically checking the liquid volume according to claim 1, characterized in that: The work platform (1) is also equipped with a transfer mechanism (2), which supports the nest box (3) and transfers it to the next process through the transfer mechanism (2) after liquid injection.

10. The automatic liquid filling device capable of automatically checking the liquid volume according to claim 9, characterized in that: The structure of the transfer mechanism (2) is as follows: it comprises a synchronous belt transmission assembly (21) and a guide rail which are horizontally and parallelly mounted on the working platform (1); a moving seat (23) is slidably mounted on the guide rail; the moving seat (23) is fixed to the synchronous belt of the synchronous belt transmission assembly (21) via a tooth pressure block (22); a lifting cylinder (24) is mounted on the side of the moving seat (23); a U-shaped support (25) with an opening facing outward is mounted on the output end of the lifting cylinder (24); the U-shaped support (25) supports the nest box (3) in a limited manner via a positioning convex column (26).

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