Automatic trace liquid feeding and supplementing device for optical contact angle measuring instrument

Abstract

The utility model discloses an automatic micro liquid feeding and supplementing device for an optical contact angle measuring instrument, which comprises a measuring instrument support, a sample table arranged at the bottom of the measuring instrument support, a drawing mechanism arranged on one side of the top of the measuring instrument support, and an injector arranged below the drawing mechanism and arranged on one side of the measuring instrument support. The drawing mechanism is at least used for driving the injector to act to automatically finish liquid dropping; a lifting module is arranged in the measuring instrument support, a rotating module is arranged at the bottom of the lifting module, a liquid preparation box is arranged on one side of the bottom of the rotating module, and the lifting module is at least used for lifting of the liquid preparation box. According to the automatic liquid dripping device, the injector can be driven to act through vertical movement of the drawing mechanism, automatic liquid dripping operation is achieved, meanwhile, the liquid preparation box can be driven to ascend, descend and rotate through the lifting module and the rotating module, liquid in the injector can be supplemented, and the tedious steps that people take down the injector to add liquid and the like are avoided.

Description

Technical Field

[0001] This utility model relates to the field of optical contact angle measuring instrument technology, and specifically to an automatic micro-liquid injection and replenishment device for optical contact angle measuring instruments. Background Technology

[0002] Optical contact angle meters are widely used in the PCB, wafer (chip), LCD, and LED industries for rapid detection of contact angles and water droplet angles. An optical contact angle meter mainly consists of a video acquisition unit, an injection unit, a light source, and a sample platform.

[0003] However, for the injection part, automated dispensing is generally used. The liquid is placed inside the injection tube and dispensed using a transmission mechanism. But after each dispensing cycle, once the liquid inside the injection tube is used up, the syringe needs to be removed, a certain amount of liquid drawn out, and then the syringe reinstalled. This is time-consuming and labor-intensive, and reduces the efficiency of contact angle measurement. Therefore, there is an urgent need to design an automatic micro-liquid injection and replenishment device for optical contact angle measuring instruments to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument, so as to solve the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument includes a measuring instrument bracket, a sample stage at the bottom of the measuring instrument bracket, a pull-out mechanism on one side of the top of the measuring instrument bracket, and a syringe located below the pull-out mechanism on one side of the measuring instrument bracket. The pull-out mechanism is at least used to drive the syringe to automatically complete the dripping.

[0007] The measuring instrument bracket is equipped with a lifting module inside, and a rotating module is provided at the bottom of the lifting module. A liquid reserve box is provided on one side of the bottom of the rotating module. The lifting module is used for the lifting movement of the liquid reserve box, and the rotating module is used for the return movement of the liquid reserve box.

[0008] Preferably, the pull-out mechanism includes a guide block fixed on the measuring instrument bracket, and a rack is slidably connected to the guide block, with a drive gear meshing on one side of the rack;

[0009] A drive motor is provided on one side of the drive gear, and a motor mount is provided on the drive motor and fixed to the side wall of the measuring instrument bracket.

[0010] The rack has a buckle at its bottom end, which is used for detachable connection with the syringe.

[0011] Preferably, the syringe includes a restraint sleeve installed on the side wall of the measuring instrument bracket, a liquid storage tube is snapped into the inside of the restraint sleeve, a pull rod with a piston is inserted into the top end of the liquid storage tube, an end plate is fixedly provided at the top end of the pull rod, and an injection tube is provided at the bottom end of the liquid storage tube.

[0012] Preferably, the lifting module includes a guide frame mounted on the measuring instrument bracket, and a lifting rod is slidably mounted on the guide frame, with a drive wheel mounted on the measuring instrument bracket on one side of the lifting rod.

[0013] Preferably, the drive wheel and the lifting rod have a toothed connection structure.

[0014] Preferably, the rotating module includes a base installed at the bottom of the lifting module, a rotating motor is provided on the outer wall of one side of the base, a gear one is provided on the output shaft below the rotating motor, a gear two is provided at the bottom of the base to mesh with the gear one, and an ear plate connected to the liquid preparation box is provided at the bottom of the gear two.

[0015] Preferably, the height of the upper surface of the liquid preparation box is lower than the height of the lower surface of the gear.

[0016] In the above technical solution, the automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument provided by this utility model has the following beneficial effects:

[0017] The up-and-down movement of the pull-out mechanism can drive the syringe to perform actions, thereby achieving automatic dispensing.

[0018] Simultaneously utilizing the lifting and rotating modules, the liquid preparation box can be lifted and rotated to replenish the liquid inside the syringe, avoiding the cumbersome steps of removing the syringe to add liquid. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a perspective view of an angular structure provided for an embodiment of the automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument according to the present invention.

[0021] Figure 2 This is another perspective view of the automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument according to the present invention.

[0022] Figure 3 This is a schematic diagram of the pull-out mechanism and syringe structure provided in an embodiment of the automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument according to this utility model.

[0023] Figure 4 This is a schematic diagram of the lifting module and rotating module provided in an embodiment of the automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument of this utility model.

[0024] 1. Measuring instrument bracket; 2. Sample stage; 3. Pull-out mechanism; 31. Motor base; 32. Drive gear; 33. Rack; 34. Guide block; 35. Buckle; 4. Syringe; 41. Restraint sleeve; 42. Liquid storage tube; 43. Pull-out rod; 44. End plate; 45. Injection tube; 5. Lifting module; 51. Guide frame; 52. Drive wheel; 53. Lifting rod; 6. Rotation module; 61. Base; 62. Rotary motor; 63. Gear 1; 64. Gear 2; 65. Ear plate; 7. Liquid preparation box. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown in the figure, the automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument provided in this embodiment of the present invention includes a measuring instrument bracket 1, a sample stage 2 at the bottom of the measuring instrument bracket 1, a pull-out mechanism 3 on one side of the top of the measuring instrument bracket 1, and a syringe 4 located below the pull-out mechanism 3 on one side of the measuring instrument bracket 1. The pull-out mechanism 3 is used at least to drive the syringe 4 to automatically complete the dripping. A lifting module 5 is provided inside the measuring instrument bracket 1, and a rotating module 6 is provided at the bottom of the lifting module 5. A liquid preparation box 7 is provided on one side of the bottom of the rotating module 6. The lifting module 5 is used at least for the lifting movement of the liquid preparation box 7, and the rotating module 6 is used at least for the return movement of the liquid preparation box 7.

[0027] In this embodiment, a measuring instrument support 1 is included, and a sample stage 2 is provided at the bottom of the measuring instrument support 1.

[0028] In this embodiment, a pull-out mechanism 3 is provided on one side of the top of the measuring instrument bracket 1. The pull-out mechanism 3 is used to drive the syringe 4 to automatically complete the dripping.

[0029] Specifically, the pull-out mechanism 3 includes a guide block 34 fixed on the measuring instrument bracket 1, and a rack 33 is slidably connected to the guide block 34. A drive gear 32 is meshed on one side of the rack 33. The drive gear 32 rotates, driving the rack 33 to move up and down linearly.

[0030] Specifically, a drive motor is provided on one side of the drive gear 32, and a motor mount 31 is provided on the drive motor and fixed to the side wall of the measuring instrument bracket 1.

[0031] Specifically, a buckle 35 is provided at the bottom of the rack 33. The buckle 35 is used to detachably connect with the syringe 4. The syringe 4 is connected through the buckle 35, and the end plate 44 of the syringe 4 is snapped into the buckle 35.

[0032] In this embodiment, a syringe 4 located below the pull-out mechanism 3 is provided on one side of the measuring instrument bracket 1;

[0033] Specifically, the syringe 4 includes a restraint sleeve 41 installed on the side wall of the measuring instrument bracket 1. A liquid storage tube 42 is snapped into the inside of the restraint sleeve 41. A pull rod 43 with a piston is inserted into the top end of the liquid storage tube 42. An end plate 44 is fixedly installed at the top end of the pull rod 43. An injection capillary tube 45 is installed at the bottom end of the liquid storage tube 42. The end plate 44 moves under the action of the pull mechanism 3, causing the pull rod 43 to move inside the liquid storage tube 42, so that the liquid inside the liquid storage tube 42 is dripped onto the sample stage 2 through the injection capillary tube 45.

[0034] In this embodiment, the measuring instrument bracket 1 is provided with a lifting module 5 inside, and the lifting module 5 is used for the lifting movement of the liquid preparation box 7 at least.

[0035] Specifically, the lifting module 5 includes a guide frame 51 mounted on the measuring instrument bracket 1, and a lifting rod 53 is slidably mounted on the guide frame 51. A drive wheel 52 mounted on the measuring instrument bracket 1 is provided on one side of the lifting rod 53. The lifting rod 53 is driven to move up and down by the drive wheel 52, which can change the height of the liquid preparation box 7. The liquid preparation box 7 is lowered when replenishing the liquid, and raised after replenishing the liquid, so as to avoid the liquid preparation box 7 affecting the dripping liquid.

[0036] Specifically, the drive wheel 52 and the lifting rod 53 are connected by a toothed structure.

[0037] In this embodiment, a rotating module 6 is provided at the bottom of the lifting module 5. The rotating module 6 is used at least for the return positioning of the liquid preparation box 7.

[0038] Specifically, the rotating module 6 includes a base 61 installed at the bottom of the lifting module 5. A rotating motor 62 is installed on the outer wall of one side of the base 61. A gear 63 is installed on the output shaft below the rotating motor 62. A gear 64 meshing with the gear 63 is installed at the bottom of the base 61. An ear plate 65 connected to the liquid preparation box 7 is installed at the bottom of the gear 64. When the rotating motor 62 is started, the liquid preparation box 7 can be rotated and moved through the gear 63 and the gear 64, so as to facilitate the replenishment of the syringe 4.

[0039] In this embodiment, a liquid storage box 7 is provided on one side of the bottom of the rotating module 6. The liquid storage box 7 is used to store the liquid substances used in the experiment.

[0040] Specifically, the height of the upper plane of the liquid preparation box 7 is lower than the height of the lower plane of gear 63, so as to avoid motion interference with gear 63 and gear 64 when the liquid preparation box 7 rotates.

[0041] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument, comprising a measuring instrument support (1), wherein a sample stage (2) is provided at the bottom of the measuring instrument support (1), characterized in that, A pull-out mechanism (3) is provided on one side of the top of the measuring instrument bracket (1), and a syringe (4) is provided on one side of the measuring instrument bracket (1) below the pull-out mechanism (3). The pull-out mechanism (3) is at least used to drive the syringe (4) to automatically complete the dripping. The measuring instrument bracket (1) is provided with a lifting module (5) inside, and a rotating module (6) is provided at the bottom of the lifting module (5). A liquid preparation box (7) is provided on one side of the bottom of the rotating module (6). The lifting module (5) is used at least for the lifting movement of the liquid preparation box (7), and the rotating module (6) is used at least for the return movement of the liquid preparation box (7).

2. The automatic micro-liquid feeding and replenishing device for optical contact angle measuring instrument according to claim 1, characterized in that, The pull-out mechanism (3) includes a guide block (34) fixed on the measuring instrument bracket (1), and a rack (33) is slidably connected on the guide block (34), and a drive gear (32) is meshed on one side of the rack (33); A drive motor is provided on one side of the drive gear (32), and a motor mount (31) fixed on the side wall of the measuring instrument bracket (1) is provided on the drive motor; The rack (33) is provided with a buckle (35) at its bottom end, which is used to detachably connect with the syringe (4).

3. The automatic micro-liquid feeding and replenishing device for optical contact angle measuring instrument according to claim 1, characterized in that, The syringe (4) includes a restraint sleeve (41) installed on the side wall of the measuring instrument bracket (1). A liquid storage tube (42) is snapped into the inside of the restraint sleeve (41). A pull rod (43) with a piston is inserted into the top end of the liquid storage tube (42). An end plate (44) is fixedly installed at the top end of the pull rod (43). An injection tube (45) is installed at the bottom end of the liquid storage tube (42).

4. The automatic micro-liquid feeding and replenishing device for optical contact angle measurement instrument according to claim 1, characterized in that, The lifting module (5) includes a guide frame (51) mounted on the measuring instrument bracket (1), and a lifting rod (53) is slidably mounted on the guide frame (51). A drive wheel (52) mounted on the measuring instrument bracket (1) is provided on one side of the lifting rod (53).

5. The automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument according to claim 4, characterized in that, The drive wheel (52) and the lifting rod (53) are toothed connections.

6. The automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument according to claim 1, characterized in that, The rotating module (6) includes a base (61) installed at the bottom of the lifting module (5). A rotating motor (62) is provided on the outer wall of one side of the base (61). A gear one (63) is provided on the output shaft below the rotating motor (62). A gear two (64) that meshes with the gear one (63) is provided at the bottom of the base (61). An ear plate (65) that connects to the liquid preparation box (7) is provided at the bottom of the gear two (64).

7. The automatic micro-liquid injection and replenishment device for an optical contact angle measuring instrument according to claim 6, characterized in that, The height of the upper plane of the liquid preparation box (7) is lower than the height of the lower plane of the gear (63).

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