CN111366443A - Automatic oscillating and mixing device for sample pretreatment - Google Patents
Automatic oscillating and mixing device for sample pretreatment Download PDFInfo
- Publication number
- CN111366443A CN111366443A CN202010320347.XA CN202010320347A CN111366443A CN 111366443 A CN111366443 A CN 111366443A CN 202010320347 A CN202010320347 A CN 202010320347A CN 111366443 A CN111366443 A CN 111366443A
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- rocker
- voice coil
- coil motor
- sample pretreatment
- sliding seat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/20—Mixing the contents of independent containers, e.g. test tubes
- B01F31/201—Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/20—Mixing the contents of independent containers, e.g. test tubes
- B01F31/24—Mixing the contents of independent containers, e.g. test tubes the containers being submitted to a rectilinear movement
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an automatic oscillation mixing device for sample pretreatment, which belongs to the technical field of experimental instruments and comprises a rack, a voice coil motor, a sliding seat, a position measuring sensor, a rocker, a sample tube clamp mechanism and a controller, wherein the voice coil motor is fixed on the rack, the voice coil motor is vertically connected with the sliding seat, the position measuring sensor is arranged on the sliding seat, the rocker is pivoted on the rack, the sliding seat is rotatably connected with the head end of the rocker, the head end of the rocker is a short arm at the pivoting position, a sliding gap parallel to the short arm is reserved at the rotating connecting position, the sample tube clamp mechanism is fixed at the tail end of the rocker, and the tail end of the rocker is a long arm at the pivoting; the controller is respectively connected with the voice coil motor and the position measuring sensor. The present case has the characteristics of imitative artifical vibration and dynamic adjustment, can realize the electron buffering, reduces the terminal mechanical impact of reciprocating motion stroke, improves reciprocal oscillation stroke and output power from top to bottom, reduces the noise and produces, and overall structure is light.
Description
Technical Field
The invention relates to the technical field of experimental instruments, in particular to an automatic oscillation mixing device for sample pretreatment.
Background
As is well known, many samples all need mix through the oscillation in the laboratory, and traditional oscillation mode generally is that operating personnel holds the sample cell, waves arm up-and-down reciprocating motion, and the sample to the sample cell mixes, and the operation process of this kind of mode can cause operating personnel high strength's work, in case when meetting the large batch sample of oscillation, just needs a plurality of operating personnel to accomplish, not only labour cost and time cost increase, and work efficiency is not high moreover.
Some have on the market replaced the manual work to carry out the mixed vibration mixing apparatus of vibration to the sample cell to can realize that multichannel simultaneous oscillation mixes, as long as want an operating personnel just can accomplish the mixed demand of sample vibration of batch, this kind of vibration mixing apparatus generally adopts the horizontal oscillation mode, including direct current motor drive and horizontal link mechanism, the during operation uses direct current motor drive link mechanism horizontal reciprocating motion, nevertheless the vibration mixing apparatus still has the defect in this:
1. because high frequency oscillation can produce mechanical shock and noise, thereby in order to cushion mechanical shock noise reduction, link mechanism need increase parallel balancing weight, but the balancing weight can cause equipment volume great, and weight is higher, and equipment is inconvenient to carry and shifts.
2. Although mechanical shock may be mitigated by a counterweight or similar object, there are limitations to the manner of balancing by foreign objects.
3. Compared with the vertical oscillation, the horizontal oscillation has the advantages that under the condition of the same output power, the generated oscillation impact force is relatively limited, and the application of the oscillation mixing of the sample has use limitation.
Disclosure of Invention
The invention aims to provide an automatic oscillation mixing device for sample pretreatment, which has the characteristics of artificial oscillation and dynamic regulation, improves the up-and-down reciprocating oscillation stroke and output force, reduces the noise generation and has a light and portable integral structure.
In order to achieve the above purpose, the solution of the invention is: an automatic oscillation mixing device for sample pretreatment comprises a rack, a voice coil motor, a sliding seat, a position measuring sensor, a rocker, a sample tube clamp mechanism and a controller, wherein the voice coil motor is fixed on the rack, the voice coil motor is vertically connected with the sliding seat, the position measuring sensor is arranged on the sliding seat, the rocker is pivoted on the rack, the sliding seat is rotatably connected with the head end of the rocker, the head end to the pivoting part of the rocker is a short arm, a sliding gap parallel to the short arm is reserved at the rotating connection part, the sample tube clamp mechanism is fixed at the tail end of the rocker, and the tail end to the pivoting part of the rocker is a long arm;
the controller is respectively connected with the voice coil motor and the position measuring sensor.
Preferably, the position measurement sensor can select a magnetic grating ruler or a grating ruler.
Preferably, a through hole is formed in the position between the two ends of the rocker, two support rods are arranged on the rack and are arranged in parallel, a pivot is connected between the two support rods, and the through hole is pivoted with the pivot.
Preferably, a bearing is arranged between the through hole and the pivot shaft in a pivoted mode.
Preferably, the head end of the rocker and the sliding seat are respectively provided with a U-shaped sliding block and a U-shaped sliding groove, the U-shaped sliding block and the U-shaped sliding groove are in cross butt joint, a rotating shaft is arranged in the U-shaped sliding groove, the rotating shaft is sleeved with a ball bearing, the upper side and the lower side of the U-shaped sliding block are in running fit with the surface of the ball bearing, and the sliding gap is arranged between the root of the U-shaped sliding block and the ball bearing.
Preferably, the sample tube clamp mechanism comprises a transverse plate and a plurality of tube clamps transversely arranged on the transverse plate, and the transverse plate is fixed at the tail end of the rocker.
Preferably, the rack is provided with a vertical guide rail, and the sliding seat forms a guide block matched with the guide rail at a position corresponding to the guide rail, so that the sliding seat can slide up and down along the vertical direction of the rack.
Preferably, the device further comprises a manipulator, wherein the manipulator is connected with the controller, and the manipulator is used for loading and removing the sample tube.
Preferably, a sliding plate is arranged at the position where the head end of the rocker is in rotating contact with the sliding seat, and the sliding plate is made of wear-resistant materials.
After the scheme is adopted, the voice coil motor belongs to a linear reciprocating motor, can still have higher thrust under the working condition of high speed, the voice coil motor drives the head end of the rocker to vertically move up and down, the rocker drives the tail end of the rocker to reversely move by taking a pivot joint as a fulcrum, so as to drive the sample tube on the sample tube clamp mechanism to oscillate up and down (vertically oscillate), in addition, the position of the sliding seat is captured in real time through the position measuring sensor, the position measuring sensor feeds back to the controller before the sliding seat moves up and down to reach the designated position, the controller controls the voice coil motor to reduce the speed first, so that the sliding seat decelerates to reach the designated position, electronic buffering is realized, the mechanical impact at the tail end of the reciprocating stroke is reduced, the position measuring sensor feeds back the dynamic position of the linear reciprocating mechanism in real time, and effective closed-loop feedback can be formed by, and the accurate positioning of the voice coil motor after working is ensured. Benefit from the design of short arm and long arm, make the voice coil motor drive the sample cell oscillation more laborsavingly, reciprocating oscillation stroke and output power about improving, although the voice coil motor stroke is less, but increase reciprocating motion's stroke through the rocker, the tail end of rocker can produce the arc swing orbit, it is the same with manual operation arc swing orbit, for this reason, the head end of rocker has still designed sliding gap very much, can slide when vertical reciprocating for the short arm of rocker makes, increase length variation and do the arc swing with the long arm that adapts to the other end, ensure the realization of arc swing, the validity that the oscillation mixes has also been ensured, consequently, this patent device has reciprocating swing stroke big, output power is big, and can realize dynamic adjustment, mechanical shock and noise are little, the location is accurate, can realize automatic oscillation.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of the operation of an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of the inside of an embodiment of the present invention.
Description of reference numerals:
the device comprises a frame 1, a guide rail 11, a voice coil motor 2, a sliding seat 3, a guide block 31, a U-shaped sliding groove 32, a rotating shaft 321, a position measuring sensor 4, a rocker 5, a head end 51, a U-shaped sliding block 511, a sliding plate 512, a tail end 52, a through hole 53, a bearing 54, a sample tube clamp mechanism 6, a transverse plate 61, a tube clamp 62, a supporting rod 7, a pivot shaft 8, a ball bearing 9, a sliding gap 10 and a sample tube 100.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings and specific embodiments.
The invention provides an automatic oscillation mixing device for sample pretreatment, which comprises a frame 1, a voice coil motor 2, a sliding seat 3, a position measuring sensor 4, a rocker 5, a sample tube clamp mechanism 6 and a controller (not shown in the figure), a voice coil motor 2 is fixed on the frame 1, the voice coil motor 2 is vertically connected with a sliding seat 3, the position measuring sensor 4 is arranged on the sliding seat 3, the rocker 5 is pivoted on the frame 1, the sliding seat 3 is rotatably connected with the head end 51 of the rocker 5, the pivot joint of the head end 51 of the rocker 5 is a short arm L1, a sliding gap 10 parallel to the short arm L1 is reserved at the rotary joint, the tail end 52 of the rocker 5 is fixed with the sample tube clamp mechanism 6, the long arm L2 is arranged at the pivot joint of the tail end 52 of the rocker 5, i.e. the distance from the head end 51 of the rocker 5 to the pivot is smaller than the distance from the tail end 52 of the rocker 5 to the pivot. The design purpose of this structure is for making voice coil motor 2 drive sample tube 100 oscillation more laborsavingly, improves reciprocal oscillation stroke and output power from top to bottom.
The controller is respectively connected with the voice coil motor 2 and the position measuring sensor 4. The position measurement sensor 4 can select a magnetic grating ruler or a grating ruler, and the magnetic grating ruler and the grating ruler have the characteristics of high detection precision and high response speed, have respective advantages and can be selected according to working conditions. The voice coil motor is a device for converting electric energy into mechanical energy and realizes linear type and limited swing angle movement. The device generates regular movement by utilizing the interaction between the magnetic field from the permanent magnetic steel and the magnetic poles in the magnetic field generated by the conductor of the electrified coil. Because the voice coil motor is a non-commutation type power device, the positioning accuracy is completely dependent on the feedback and control system, and is independent of the voice coil motor. The combination of the position measuring sensor 4 can make the positioning precision of the voice coil motor higher and the response faster.
Firstly, the voice coil motor 2 vertically drives the slide base 3 to slide upwards, the slide base 3 pushes the head end 51 of the rocker 5 to vertically move upwards, the head end 51 of the rocker 5 drives the tail end 52 of the rocker 5 to reversely move (move downwards) by taking the pivot joint as a lever fulcrum, so as to drive the sample tube 100 on the sample tube clamp mechanism 6 to move downwards, then the voice coil motor 2 vertically drives the slide base 3 to vertically slide downwards, the slide base 3 pulls the head end 51 of the rocker 5 to vertically move downwards, the head end 51 of the rocker 5 drives the tail end 52 of the rocker 5 to reversely move (move upwards) by taking the pivot joint as a lever fulcrum, so as to drive the sample tube 100 on the sample tube clamp mechanism 6 to move upwards, and thus the sample tube 100 can oscillate upwards and downwards; the tail end 52 of the device swings in an arc shape, generally speaking, the head end 51 also swings in an arc shape, but the head end 51 of the rocker 5 moves vertically and linearly, therefore, the head end 51 of the rocker 5 is also specially designed with a sliding gap 10 so as to change the length from the head end 51 to a pivoting part to adapt to the arc-shaped swing of the long arm at the other end, the short arm of the rocker 5 can slide while moving vertically and vertically, the realization of the arc-shaped swing and the effectiveness of oscillation mixing are ensured, although the stroke of the voice coil motor 2 is smaller, the stroke of the reciprocating motion is increased through the lever principle of the short arm and the long arm, the rocker 5 can generate an arc-shaped swing track, the effectiveness of the oscillation mixing is ensured as the same as the manually operated arc-shaped swing track, therefore, the device has large reciprocating swing stroke and large output force, and can realize dynamic adjustment, the dynamic adjustment of the present case is not only an adjustment of the sliding gap 10, but also a real-time electronic buffering of the position measuring sensor 4. Catch the position of slide 3 in real time through position measurement sensor 4, before reciprocating of slide 3 will arrive the assigned position, feed back the controller through position measurement sensor 4, the speed reduction is first taken off by controller control voice coil motor 2 again, make slide 3 slow down and reach the assigned position, realize the electronic buffering, reduce the terminal mechanical shock of reciprocating motion stroke, position measurement sensor 4 feeds back sharp reciprocating mechanism dynamic position in real time, can form effectual closed loop feedback with the controller of voice coil motor 2, ensure the accurate positioning after the work of voice coil motor 2.
The structure of rocker 5 pin joint on frame 1 can be diversified, and for pursuing the structure more light, this embodiment adopts comparatively simple structure: the rocking bar is characterized in that the rack 1 is provided with two supporting rods 7, the two supporting rods 7 are arranged in parallel, a pivot 8 is connected between the two supporting rods 7, a through hole 53 is formed in the bar body of the rocking bar 5 between the head end 51 and the tail end 52, and the through hole 53 is pivoted with the pivot 8.
The head end 51 of the rocker 5 and the sliding seat 3 are respectively provided with a U-shaped sliding block 511 and a U-shaped sliding groove 32, the U-shaped sliding block 511 and the U-shaped sliding groove 32 are in cross butt joint, a rotating shaft 321 is arranged in the U-shaped sliding groove 32, the rotating shaft 321 is sleeved with a ball bearing 9, the upper side and the lower side of the U-shaped sliding block 511 are in rotating fit with the surface of the ball bearing 9, and the sliding gap 10 is arranged between the root of the inner side of the U-shaped sliding block 511 and the ball bearing 9. Therefore, the U-shaped sliding block 511 will slide along the sliding gap 10, and this place is the place where the friction is the most and the most severe, and therefore, in this embodiment, the sliding plate 512 is installed especially at the position where the inner side of the U-shaped sliding block 511 is in rotational contact with the ball bearing 9, and the sliding plate 512 is made of wear-resistant material to enhance the connection strength at this place. Similarly, since the through hole 53 and the pivot 8 only rotate and no sliding friction is generated, a bearing 54 adapted to the shape of the through hole is disposed between the through hole 53 and the pivot 8.
The sample tube clamping mechanism 6 of the present application can be designed with multiple stations for large-scale oscillation, and specifically, the sample tube clamping mechanism 6 includes a horizontal plate 61 and multiple tube clamps 62, the horizontal plate 61 is fixed at the tail end 52 of the rocker 5, the tube clamps 62 are arranged transversely on the horizontal plate 61, and when in use, the sample tubes 100 are inserted into the tube clamps 62 from top to bottom.
In one embodiment, the apparatus further comprises a manipulator (not shown) connected to the controller, wherein the manipulator is used for loading and unloading the sample tubes 100, so that the apparatus combined with the manipulator can automatically disassemble and assemble the sample tubes 100, and the automation degree of the apparatus is higher.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the design of the present invention, and all equivalent changes made in the design key point of the present invention fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a sample pretreatment automatic oscillation mixing arrangement which characterized in that: the device comprises a rack, a voice coil motor, a sliding seat, a position measuring sensor, a rocker, a sample tube clamp mechanism and a controller;
a voice coil motor is fixed on the rack, the voice coil motor is vertically connected with a sliding seat, and the position measuring sensor is arranged on the sliding seat;
the rocker is pivoted on the rack, the sliding seat is rotatably connected with the head end of the rocker, the head end to the pivoting position of the rocker is a short arm, a sliding gap parallel to the short arm is reserved at the rotating connection position, the tail end of the rocker is fixedly provided with a sample tube clamp mechanism, and the tail end to the pivoting position of the rocker is a long arm;
the controller is respectively connected with the voice coil motor and the position measuring sensor.
2. The automatic oscillating mixer for sample pretreatment according to claim 1, wherein said position measuring sensor is selected from a magnetic scale and a grating scale.
3. The automatic oscillating mixer for sample pretreatment according to claim 1, wherein the rocker has a through hole at a position between both ends, the frame has two parallel rods, a pivot is connected between the two rods, and the through hole is pivoted to the pivot.
4. The automatic oscillating mixer for sample pretreatment as set forth in claim 3, wherein a bearing is provided between said through hole and said pivot pin.
5. The automatic oscillating and mixing device for sample pretreatment according to claim 1, wherein the head end of the rocker and the slide carriage are respectively provided with a U-shaped slide block and a U-shaped chute, and the U-shaped slide block and the U-shaped chute are in cross butt joint;
the improved structure is characterized in that a rotating shaft is arranged in the U-shaped sliding groove and is sleeved with a ball bearing, the upper side and the lower side of the U-shaped sliding block are in running fit with the surface of the ball bearing, and a sliding gap is formed between the root of the U-shaped sliding block and the ball bearing.
6. The automatic oscillating mixer for sample pretreatment of claim 1, wherein the sample tube clamp mechanism comprises a horizontal plate and a plurality of tube clamps transversely arranged on the horizontal plate, and the horizontal plate is fixed at the tail end of the rocker.
7. The automatic oscillating mixer for sample pretreatment according to claim 1, wherein the frame is provided with a vertical guide rail, and the slide is formed with a guide block which is engaged with the guide rail at a position corresponding to the guide rail so that the slide can slide up and down in the vertical direction of the frame.
8. The automatic oscillating mixer for sample pretreatment of claim 1, further comprising a robot connected to the controller, the robot for loading and unloading sample tubes.
9. The automatic oscillating mixer for sample pretreatment according to claim 1, wherein a slide plate is installed at a position where the head end of the rocker is in rotational contact with the slide base, and the slide plate is made of a wear-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010320347.XA CN111366443A (en) | 2020-04-22 | 2020-04-22 | Automatic oscillating and mixing device for sample pretreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010320347.XA CN111366443A (en) | 2020-04-22 | 2020-04-22 | Automatic oscillating and mixing device for sample pretreatment |
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| Publication Number | Publication Date |
|---|---|
| CN111366443A true CN111366443A (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010320347.XA Pending CN111366443A (en) | 2020-04-22 | 2020-04-22 | Automatic oscillating and mixing device for sample pretreatment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640095A (en) * | 2021-08-13 | 2021-11-12 | 睿科集团(厦门)股份有限公司 | Vertical oscillation mechanism for extraction pretreatment |
| CN115382439A (en) * | 2022-08-29 | 2022-11-25 | 睿科集团(厦门)股份有限公司 | Automatic oscillation device for physical and chemical samples |
| CN115561412A (en) * | 2022-10-08 | 2023-01-03 | 哈尔滨海涵丰生物科技开发有限公司 | Medicine automatic checkout device |
| US11772059B1 (en) * | 2022-05-03 | 2023-10-03 | Thomas Joseph Edwards | Mixing device, system and method of mixing |
-
2020
- 2020-04-22 CN CN202010320347.XA patent/CN111366443A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640095A (en) * | 2021-08-13 | 2021-11-12 | 睿科集团(厦门)股份有限公司 | Vertical oscillation mechanism for extraction pretreatment |
| US11772059B1 (en) * | 2022-05-03 | 2023-10-03 | Thomas Joseph Edwards | Mixing device, system and method of mixing |
| CN115382439A (en) * | 2022-08-29 | 2022-11-25 | 睿科集团(厦门)股份有限公司 | Automatic oscillation device for physical and chemical samples |
| CN115382439B (en) * | 2022-08-29 | 2023-10-13 | 睿科集团(厦门)股份有限公司 | Automatic oscillating device for physicochemical samples |
| CN115561412A (en) * | 2022-10-08 | 2023-01-03 | 哈尔滨海涵丰生物科技开发有限公司 | Medicine automatic checkout device |
| CN115561412B (en) * | 2022-10-08 | 2023-05-05 | 哈尔滨海涵丰生物科技开发有限公司 | Automatic medicine detection device |
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