Side loading device

Abstract

The utility model discloses a side sample adding device, including a transmission mechanism and a sample adding mechanism, the sample adding mechanism includes a fixed plate, a first stepper motor, a motor seat, a bearing base, a trapezoidal screw shaft, an inner bearing with a spacer sleeve on the outer side is installed on the bearing base, the trapezoidal screw shaft is inserted into the inner bearing and the spacer sleeve in sequence, the rear end of the fixed plate is inserted into the trapezoidal screw shaft, both sides of the bearing base are inserted with an optical axis, the top of the optical axis is fixedly installed with a top plate, the fixed plate is provided with a first light shielding sheet and a sample injection needle, the transmission mechanism includes a slider flange, a module screw, a slider, a linear rail, and a module bottom plate. The utility model has a compact structure, occupies less space, adopts a rolled screw, has low cost, and has a large lead, can quickly move to a specified position, and has high dripping efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of sample adding devices, and in particular relates to a side sample adding device. Background Art

[0002] In the fields of experimental analysis, quality control, and safety monitoring, it is crucial to quickly and accurately identify and detect different solution samples. Existing solution loading devices have some problems, such as complex operation and long time consumption. To solve these problems, researchers have been looking for more convenient and efficient solution loading devices. The three-axis loading devices on the market are relatively large and take up a lot of space; the gear-driven loading devices are noisy, have low precision, are difficult to adjust, and are easily damaged. In view of this, it is necessary to study a side loading device. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide a side sample adding device with compact structure, small space occupation, low cost and large lead, which can move quickly to the specified position and has high dripping efficiency.

[0004] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0005] A side loading device comprises a transmission mechanism and a loading mechanism, wherein the loading mechanism comprises a fixed plate, a first stepper motor, a motor seat, a bearing base, and a trapezoidal screw shaft, wherein an inner bearing with a spacer sleeve on the outer side is installed on the bearing base, the trapezoidal screw shaft sequentially penetrates into the inner bearing and the spacer sleeve, the rear end of the fixed plate is inserted into the trapezoidal screw shaft, optical axes are inserted into both sides of the bearing base, a top plate is fixedly installed on the top end of the optical axis, a first shading sheet and a sampling needle are arranged on the fixed plate, the transmission mechanism comprises a slider flange, a module screw, a slider, a linear rail, and a module bottom plate, the module screw is inserted into the slider flange, the bottom end of the slider flange is slidably connected to the linear rail fixed on the module bottom plate through the slider, and the bearing base is locked on the slider flange to drive the left and right movement of the loading mechanism.

[0006] Preferably, the aforementioned trapezoidal screw shaft is connected to a synchronous belt, both ends of the synchronous belt are connected to synchronous belt drive wheels, the motor seat is installed on the synchronous belt drive wheel, the first stepper motor is inserted into the motor seat and the synchronous belt drive wheel in sequence, and the motor seat is fixedly installed on the bearing base.

[0007] Preferably, the two sides of the bottom of the top plate are respectively fixedly mounted with equal-height vertical plates a and equal-height vertical plates b, and the bottom ends of the equal-height vertical plates a and equal-height vertical plates b are respectively fixed to the two sides of the bearing base.

[0008] Preferably, the top end of the aforementioned trapezoidal screw shaft is inserted into the middle of the top plate, an elastic retaining ring for the shaft is provided at the contact point between the trapezoidal screw shaft and the top plate, and a U-shaped switch is fixedly provided on the top plate.

[0009] Preferably, bearing seats a and b are fixed at both ends of the aforementioned module base plate, bearing seats a and b are installed on bearing seats a and b, respectively, both ends of the module screw rod are inserted into bearing a and bearing b, respectively, and the outer end of the module screw rod is connected to the second stepper motor through a coupling.

[0010] Preferably, the top end of the aforementioned injection needle is tightened with a standard roll clamp connector.

[0011] Preferably, a second shading sheet is installed on the aforementioned slider flange.

[0012] The utility model is beneficial in that: the utility model has a compact structure, occupies little space, adopts a rolled lead screw, has low cost, and has a large lead, can quickly move to a specified position, and has high dripping efficiency; the module lead screw is driven to rotate by the second stepper motor, and the module lead screw drives the slider flange to slide, thereby realizing the movement of the sample adding device; the trapezoidal lead screw shaft is driven to rotate by the first stepper motor, and the trapezoidal lead screw shaft drives the fixed plate to move up and down, thereby realizing the up and down movement of the injection needle to complete the dripping work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 yes Figure 1 Cross-sectional view of AA in the middle;

[0015] Figure 3 It is a top view of the utility model;

[0016] Figure 4 yes Figure 3 Cross-section of the middle BB;

[0017] Figure 5 yes Figure 3 Cross-section of the middle CC;

[0018] Figure 6 It is a bottom view of the utility model.

[0019] The meanings of the reference numerals in the figure are as follows: 1. fixed plate, 2. first stepper motor, 3. motor seat, 4. bearing base, 5. trapezoidal lead screw shaft, 6. inner bearing, 7. optical axis, 8. top plate, 9. first shading sheet, 10. injection needle, 11. slider flange, 12. module lead screw, 13. slider, 14. linear rail, 15. module bottom plate, 16. synchronous belt, 17. equal height plate a, 18. equal height plate b, 19. elastic retaining ring for shaft, 20. U-shaped switch, 21. bearing seat a, 22. bearing seat b, 23. bearing a, 24. bearing b, 25. second stepper motor, 26. standard roller clamp joint, 27. second shading sheet, 28. first synchronous belt driving wheel, 29. second synchronous belt driving wheel. DETAILED DESCRIPTION

[0020] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] See also Figures 1 to 6 The utility model discloses a side loading device, comprising a transmission mechanism and a loading mechanism, wherein the loading mechanism comprises a fixing plate 1, a first stepper motor 2, a motor seat 3, a bearing seat 4, and a trapezoidal lead screw shaft 5.

[0022] An inner bearing 6 with a spacer sleeve on the outer side is installed on the bearing base 4, the trapezoidal screw shaft 5 is inserted into the inner bearing 6 and the spacer sleeve in turn, the rear end of the fixed plate 1 is inserted into the trapezoidal screw shaft 5, the trapezoidal screw shaft 5 is connected to the synchronous belt 16, the two ends of the synchronous belt 16 are respectively connected to the first synchronous belt driving wheel 28 and the second synchronous belt driving wheel 29, the motor base 3 is installed on the driving wheel of the synchronous belt 16, the first stepper motor 2 is inserted into the motor base 3 and the second synchronous belt driving wheel 29 in turn, and the motor base 3 is locked on the bearing base 4 with a hexagon socket head screw.

[0023] Optical axes 7 are inserted into both sides of the bearing base 4, and a top plate 8 is fixedly installed on the top of the optical axis 7. The bushing is inserted into the optical axis 7, fixed on the fixed plate 1, and tightened on the bearing base 4 with a hexagonal flat-end set screw, and the hexagonal flat-end set screw is tightened on the top plate 8.

[0024] Insert the screw nut into the trapezoidal screw shaft 5, and lock it to the trapezoidal screw shaft 5 with a hexagon socket head screw, and use a screw to lock the first light shielding sheet 9 to the fixed plate 1. Use a hexagon socket head screw to lock the equal height vertical plate a17 and the equal height vertical plate b18 to the bearing base 4, and place the inner bearing 6 in the top plate 8. Insert the top plate 8 into the trapezoidal screw shaft 5 and the optical axis 7, and use a hexagon socket head screw to lock the top plate 8 to the equal height vertical plate a17 and the equal height vertical plate b18, and clamp the shaft to the trapezoidal screw shaft 5 with a circlip 19. Use a cross slot countersunk screw to lock the U-shaped switch 20 to the top plate 8.

[0025] Insert the injection needle 10 into the fixing plate 1 , lock it with a nut, and tighten the standard roll clamp connector 26 onto the injection needle 10 .

[0026] The transmission mechanism includes a slider flange 11, a module screw 12, a slider 13, a linear rail 14, and a module bottom plate 15. The second light shielding sheet 27 is locked to the slider flange 11 with a hexagon socket head screw. The screw nut is inserted into the slider flange 11, the module screw 12 is plugged into the slider flange 11, and the screw nut and the slider flange 11 are locked with a hexagon socket head screw.

[0027] Put the slider 13 into the groove of the linear rail 14, lock the linear rail 14 to the module bottom plate 15 with the hexagon socket head screw, and lock the slider flange 11 to the slider 13 with the hexagon socket head screw to drive the loading mechanism to move left and right.

[0028] The two ends of the module bottom plate 15 are respectively fixed with bearing seats a21 and b22, and the bearing seats a21 and b22 are screwed to the module bottom plate 15 with hexagon socket cylindrical head screws. The bearing seats a21 and b22 are respectively installed with bearings a23 and b24, and the two ends of the module screw rod 12 are respectively inserted into the bearings a23 and b24, and the spacer sleeve is placed in the module screw rod 12; the locking nut is screwed to the module screw rod 12, and then the hexagon socket flat end set screw is screwed to the locking nut.

[0029] Insert the coupling into the module screw 12, lock the motor fixing seat to the module bottom plate 15 with the hexagon socket flat-end set screw, and tighten the second stepper motor 25 to the motor fixing seat with the hexagon socket cylindrical head screw. Tighten the U-shaped switch 20 fixing seat to the module bottom plate 15 with the hexagon socket cylindrical head screw, and tighten the U-shaped switch 20 to the U-shaped switch 20 fixing seat with the cross slot pan head screw.

[0030] In order to better illustrate the utility model, the working process is described in detail below:

[0031] In the X-axis direction: the first stepper motor 2 rotates, driving the coupling to rotate, the coupling drives the module screw 12 to rotate, the module screw 12 drives the slider flange 11 to slide, and the slider flange 11 moves with the above loading mechanism.

[0032] In the Z-axis direction: the second stepper motor 25 rotates, driving the second synchronous belt driving wheel 29 to rotate, the second synchronous belt driving wheel 29 drives the synchronous belt 16 to rotate, the synchronous belt 16 then drives the first synchronous belt driving wheel 28, the first synchronous belt driving wheel 28 drives the trapezoidal screw shaft 5 to rotate, the trapezoidal screw shaft 5 drives the fixed plate 1 to move up and down, the fixed plate 1 drives the injection needle 10 to move up and down, and completes the dripping work.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A side loading device, comprising a transmission mechanism and a loading mechanism, characterized in that: The loading mechanism comprises a fixed plate (1), a first stepper motor (2), a motor seat (3), a bearing base (4), and a trapezoidal screw shaft (5). An inner bearing (6) with a spacer sleeve on the outer side is installed on the bearing base (4). The trapezoidal screw shaft (5) is inserted into the inner bearing (6) and the spacer sleeve in sequence. The rear end of the fixed plate (1) is inserted into the trapezoidal screw shaft (5). Optical axes (7) are inserted into both sides of the bearing base (4). A top plate (8) is fixedly installed on the top of the optical axis (7). The fixed plate (1) ) is provided with a first shading sheet (9) and a sampling needle (10), the transmission mechanism comprises a slider flange (11), a module screw rod (12), a slider (13), a linear rail (14), and a module bottom plate (15), the module screw rod (12) is inserted into the slider flange (11), the bottom end of the slider flange (11) is slidably connected to the linear rail (14) fixed on the module bottom plate (15) through the slider (13), and the bearing base (4) is locked on the slider flange (11) to drive the sample adding mechanism to move left and right.

2. A side loading device according to claim 1, characterized in that: The trapezoidal screw shaft (5) is connected to a synchronous belt (16), both ends of the synchronous belt (16) are connected to a synchronous belt driving wheel, the motor seat (3) is mounted on the synchronous belt driving wheel, the first stepper motor (2) is inserted into the motor seat (3) and the synchronous belt driving wheel in sequence, and the motor seat (3) is fixedly mounted on the bearing base (4).

3. A side loading device according to claim 1, characterized in that: The two sides of the bottom of the top plate (8) are respectively fixedly mounted with equal-height vertical plates a (17) and equal-height vertical plates b (18), and the bottom ends of the equal-height vertical plates a (17) and equal-height vertical plates b (18) are respectively fixed to the two sides of the bearing base (4).

4. A side loading device according to claim 1, characterized in that: The top end of the trapezoidal screw shaft (5) is inserted into the middle of the top plate (8), a shaft elastic retaining ring (19) is provided at the contact point between the trapezoidal screw shaft (5) and the top plate (8), and a U-shaped switch (20) is fixedly provided on the top plate (8).

5. A side loading device according to claim 1, characterized in that: A bearing seat a (21) and a bearing seat b (22) are fixed to the two ends of the module base plate (15), respectively; a bearing a (23) and a bearing b (24) are mounted on the bearing seat a (21) and the bearing seat b (22), respectively; the two ends of the module lead screw (12) are inserted into the bearing a (23) and the bearing b (24), respectively; and the outer end of the module lead screw (12) is connected to the second stepping motor (25) via a coupling.

6. A side loading device according to claim 1, characterized in that: The top end of the injection needle (10) is screwed tightly with a standard roller clamp connector (26).

7. A side loading device according to claim 1, characterized in that: A second light shielding sheet (27) is mounted on the slider flange (11).

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