CN216285100U - Thin-layer plate feeding mechanism and thin-layer chromatography scanner - Google Patents

Abstract

The application relates to the field of thin-layer chromatography, and particularly discloses a thin-layer plate feeding mechanism and a thin-layer chromatography scanner. Feed mechanism includes base, landing slab and bearing board, the landing slab slides and sets up or fixed the setting on the base, the bearing board slides and sets up on the landing slab, feed mechanism still includes the first subassembly that slides that the drive bearing board slided. The thin-layer plate can be stably located at the specified position, and therefore the detection accuracy can be improved.

Description

Thin-layer plate feeding mechanism and thin-layer chromatography scanner

Technical Field

The application relates to the field of thin-layer chromatography, in particular to a thin-layer plate feeding mechanism and a thin-layer chromatography scanner.

Background

The thin layer chromatography is a common method in material analysis, and the main principle is that a stationary phase is coated on a glass plate or an aluminum plate to form a uniform thin layer plate, then a mobile phase is taken to drop on the thin layer plate, so that each component in a sample directionally moves in the thin layer plate along with the mobile phase, and the materials in the sample are separated; the separated material is then subjected to detection analysis.

In thin layer chromatography, a commonly used detection analyzer is a thin layer chromatography scanner, and the working process of the detection analyzer is to place a thin layer plate with a sample at a specified position of the scanner, then utilize a monochromator and the like to emit light with specified wavelength, irradiate the light onto the sample of the thin layer plate, and analyze the substance by detecting and analyzing the light intensity information reflected or transmitted by the thin layer plate.

In view of the above-mentioned related technologies, the inventor believes that, in the process of manually placing a thin-layer plate into a scanner by a worker, the stability of the thin-layer plate in the placing process is easily affected by shaking of the hand, and thus the accuracy of detection and analysis is affected.

SUMMERY OF THE UTILITY MODEL

In order to stably put the thin-layer plate into the scanner, the application provides a thin-layer plate feeding mechanism and a thin-layer chromatography scanner.

In a first aspect, the application provides a thin-layer plate feeding mechanism, which adopts the following technical scheme:

the utility model provides a feed mechanism, includes base, landing slab and bearing board, the landing slab slides and sets up or fixed the setting on the base, the bearing board slides and sets up on the landing slab, feed mechanism still includes the first subassembly that slides that the drive bearing board slided.

By adopting the technical scheme, the first sliding assembly can move the bearing plate to the outer side of the scanner, after the thin-layer plate is placed on the bearing plate, the bearing plate can slide on the platform plate under the driving action of the first sliding assembly to stably enter the scanner, so that the thin-layer plate stably enters the scanner, and the shaking and the displacement of the thin-layer plate are reduced; when the landing slab also slided the setting simultaneously, the sliding of landing slab can cooperate the sliding of bearing board, further adjusts the position of thin-layer board steadily in the scanner for the thin-layer board can be stably located at the position of regulation, thereby can improve the accuracy that detects.

Optionally, the landing slab slides and sets up on the base, the bearing board slides and sets up on the bearing board along the direction of sliding of perpendicular to landing slab.

Through adopting above-mentioned technical scheme, platform board and bearing board slide along plane coordinate system to can move the lamella board to the position of regulation conveniently.

Optionally, the platform plate is provided with a second sliding assembly for driving the platform plate to slide.

Through adopting above-mentioned technical scheme, the second subassembly that slides drives the landing slab and removes to can improve the mobility stability of landing slab.

Optionally, the first subassembly that slides includes first synchronous area and first motor, first synchronous area rotates and sets up on the landing slab, bearing board and first synchronous area are connected, first motor sets up on the landing slab, first motor is used for driving first synchronous area and rotates.

Through adopting above-mentioned technical scheme, first motor drives first synchronous belt and rotates, can make first synchronous belt drive the bearing board steadily and remove.

Optionally, the second subassembly that slides includes second hold-in range and second motor, the second hold-in range rotates and sets up on the scanner that is used for cooperating feed mechanism to use, the landing slab is connected with the second hold-in range, the second motor sets up on the scanner that is used for cooperating feed mechanism to use, the second motor is used for driving the second hold-in range and rotates.

Through adopting above-mentioned technical scheme, the second motor drives the rotation of second hold-in range, can make the second hold-in range drive the landing slab and remove.

Optionally, be provided with on the landing slab and slide a piece, be provided with the connecting block on the first synchronous belt, the connection can be dismantled through coupling assembling and connecting block to the bearing board, one side butt that the landing slab was kept away from to bearing board and a piece that slides.

Through taking above-mentioned technical scheme, the piece that props that slides supports the bearing board for the bearing board moves on the landing slab steadily, and the connection can be dismantled with the bearing board to the connecting block simultaneously, is convenient for change or clear up the bearing board, when reducing the pollution to the thin-layer board, improves and detects the accuracy.

Optionally, coupling assembling includes the locating piece, the connecting block is provided with the slot along the lateral wall of bearing board direction of sliding, one side of first synchronous belt is kept away from to slot through connection piece, bearing board and slot cell wall are pegged graft, one side lateral wall that the landing slab was kept away from to the connecting block runs through and is provided with the feed tank, the locating piece slides and sets up in the feed tank, be provided with the constant head tank on the relative lateral wall of bearing board and feed tank, locating piece and constant head tank cell wall are pegged graft, be provided with the mounting of fixed positioning piece on the connecting block.

Through adopting above-mentioned technical scheme, back in the slot is inserted to the bearing board, feed tank and constant head tank are relative, then insert the locating piece in the constant head tank to utilize the mounting to fix a position the locating piece, can be spacing together bearing board and connecting block, thereby realize bearing board and first synchronous belt between the stable connection of dismantling.

In a second aspect, the present application provides a thin layer chromatography scanner, which adopts the following technical scheme:

the thin-layer chromatography scanner comprises a case and an optical generator, wherein the optical generator is arranged in the case, the thin-layer chromatography scanner also comprises a feeding mechanism, and the feeding mechanism is arranged in the case and is opposite to a case opening of the case.

By adopting the technical scheme, the thin-layer plate is moved into the case by the feeding mechanism, then the light generator emits light with specified wavelength, the light irradiates the specified position of the thin-layer plate, and then the intensity of the light reflected by the thin-layer plate is detected, so that a sample on the thin-layer plate can be analyzed.

Optionally, the thin-layer chromatography scanner further includes an external optical filter, the external optical filter is slidably disposed in the chassis, the external optical filter is located between the light emitting port of the light generator and the support plate of the feeding mechanism, and a third sliding assembly for driving the external optical filter to slide is disposed on the chassis.

By adopting the technical scheme, the light emitted by the light generator is further screened by the external filter, so that the light with other wavelengths in the light is reduced, and the detection accuracy is improved; the second sliding component drives the optical filter plate to move, so that the position of the external optical filter can be adjusted, and the external optical filters of different models can be selected.

Optionally, the third subassembly that slides includes guide rail, third hold-in range and filter plate, the guide rail sets up at quick-witted incasement, the filter plate slides and sets up on the guide rail, the external optical filter sets up on the filter plate, the third hold-in range rotates and sets up at quick-witted incasement and is connected with the filter plate, be provided with in the machine incasement and be used for driving third hold-in range pivoted third motor.

By adopting the technical scheme, the guide rail guides the optical filter plate, so that the optical filter plate can stably move under the drive of the third synchronous belt, and the position of the external optical filter is adjusted.

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

1. the first sliding assembly is used for driving the bearing plate to slide, so that the placing plate drives the thin-layer plate to slide and smoothly enter and exit the scanner, and the shaking and the displacement of the thin-layer plate are reduced;

2. in the application, the platform plate is arranged in a sliding manner, the sliding of the platform plate can be matched with the sliding of the bearing plate, and the position of the thin-layer plate is further stably adjusted in the scanner, so that the thin-layer plate can be stably located at a specified position, and the detection accuracy can be improved;

3. the scanner is additionally provided with the external optical filter, light emitted by the light generator is further filtered through the external optical filter, light with other wavelengths in the light is reduced, and detection accuracy is improved.

Drawings

Fig. 1 is a schematic structural diagram of a thin layer chromatography scanner in example 1 of the present application.

Fig. 2 is a schematic diagram of a positional relationship between the light generator and the feeding mechanism in embodiment 1 of the present application.

Fig. 3 is a schematic structural diagram of a thin layer chromatography scanner in example 2 of the present application.

Fig. 4 is an exploded view of a position relationship of a light generator, an external filter and a feed mechanism in embodiment 2 of the present application.

Fig. 5 is an exploded view of a third slip assembly structure according to example 2 of the present application.

Fig. 6 is a schematic structural view of a feeding mechanism in embodiment 3 of the present application.

Fig. 7 is a schematic structural diagram of a thin layer chromatography scanner in example 4 of the present application.

Fig. 8 is a plan view of the loading mechanism in embodiment 4 of the present application.

Fig. 9 is a sectional view taken along line a-a of fig. 8.

Fig. 10 is an enlarged view at B in fig. 9.

Fig. 11 is a schematic structural view of a feeding mechanism in embodiment 5 of the present application.

Description of reference numerals: 1. a chassis; 11. a box door; 12. a substrate; 13. a third motor; 2. a light generator; 3. a base; 4. a platform plate; 41. sliding the support block; 5. a support plate; 51. positioning a groove; 6. a second glide assembly; 61. a second synchronous belt; 62. a second motor; 63. a second screw; 64. a second feeding block; 65. a fourth motor; 66. a second synchronizing wheel; 7. a first glide assembly; 71. a first synchronization belt; 72. a first motor; 73. a first screw; 74. a first feeding block; 75. a fifth motor; 76. a first synchronizing wheel; 8. an external optical filter; 81. a third glide assembly; 811. a guide rail; 812. a third synchronous belt; 813. a filter plate; 8131. a light-transmitting through groove; 8132. a bearing ring; 8133. a slider; 814. a third synchronizing wheel; 9. connecting blocks; 91. a connecting assembly; 911. positioning blocks; 9111. a slot; 9112. a sliding groove; 92. a feed slot; 921. a yielding groove; 93. a fixing member; 931. a limiting block; 932. a clamping block; 933. a limiting spring; 934. a positioning spring; 94. and (7) connecting blocks.

Detailed Description

The present application is described in further detail below with reference to figures 1-11.

Example 1

The embodiment 1 of the application discloses a thin-layer chromatography scanner.

As shown in fig. 1 and 2, a thin-layer chromatography scanner includes a case 1, a light generator 2 and a feeding mechanism, wherein a case door 11 is slidably disposed at a case opening of the case 1 along a horizontal direction, the light generator 2 is installed in the case 1, the light generator 2 in this embodiment is a monochromator, the feeding mechanism is installed in the case 1 and is opposite to the case opening of the case 1, and the feeding mechanism is located below the light generator 2.

The feeding mechanism can put the thin-layer plate into a specified position in the case 1, then the case door 11 slides towards the direction of the case opening, so that the case opening is closed by the case door 11, the light generator 2 emits light with specified wavelength, the light irradiates on a sample of the thin-layer plate, and then the sample can be analyzed by detecting the light intensity reflected by the thin-layer plate.

As shown in fig. 1 and fig. 2, the feeding mechanism in this embodiment mainly includes a base 3, a platform plate 4 and a supporting plate 5, there may be one, two, three, etc. bases 3, there are two bases 3 in this embodiment, the two bases 3 are fixedly disposed on the inner bottom wall of the cabinet 1, and the two bases 3 are opposite to each other along the sliding direction perpendicular to the door 11; the platform plate 4 is arranged on the base 3 in a sliding manner along the sliding direction of the box door 11, and a second sliding component 6 for driving the platform plate 4 to slide is arranged in the box 1; the upper surface of the platform plate 4 is fixedly connected with two sliding support blocks 41, and the two sliding support blocks 41 are opposite to each other along the sliding direction of the box door 11; the bearing plate 5 is arranged on the upper surfaces of the two sliding support blocks 41 in a sliding manner, the sliding direction of the bearing plate 5 is perpendicular to the sliding direction of the box door 11, and a first sliding component 7 for driving the bearing plate 5 to slide is arranged in the box 1.

The box door 11 is opened, the first sliding component 7 slides the supporting plate 5 out of the box 1, then the thin-layer plate is placed on the upper surface of the supporting plate 5, the first sliding component 7 is started, the supporting plate 5 is retracted into the box 1, then the second sliding component 6 is started, the platform plate 4 drives the supporting plate 5 to move, and the thin-layer plate can be moved to a specified position.

As shown in fig. 1 and 2, the first sliding assembly 7 in this embodiment includes a first synchronous belt 71, a first motor 72, and two first synchronous wheels 76, wherein the two first synchronous wheels 76 are rotatably disposed on the platform plate 4, and the two first synchronous wheels 76 are disposed oppositely; the first motor 72 is fixedly arranged on the platform plate 4, and the driving end of the first motor 72 is fixedly connected with the wheel center of the first synchronous wheel 76 far away from the box door 11; the first timing belt 71 is wound between the two first timing wheels 76, and the support plate 5 is coupled to the first timing belt 71. When the first motor 72 is started, the first synchronous pulley 76 drives the first synchronous belt 71 to rotate, so that the supporting plate 5 can slide on the sliding support block 41, and the supporting plate 5 can enter and exit the chassis 1.

In other embodiments, the first sliding component 7 can also be a chain wheel and a chain, two chain wheels are provided and rotatably arranged on the platform plate 4, the chain is engaged between the two chain wheels, and the chain is fixedly connected with the bearing plate 5. The first sliding component 7 can also be a gear and a rack, the gear is rotatably arranged on the platform plate 4, the rack is slidably arranged on the platform 4, and the rack is meshed with the gear and is fixedly connected with the bearing plate 5.

As shown in fig. 1 and 2, the second sliding assembly 6 includes a second timing belt 61, a second motor 62, and two second timing wheels 66, the two second timing wheels are rotatably disposed on the inner bottom wall of the chassis 1, and the two second timing wheels 66 are disposed opposite to each other; the second motor 62 is fixedly arranged on the inner bottom wall of the case 1, and the driving end of the second motor 62 is fixedly connected with the wheel center of a second synchronous wheel 66; the second timing belt 61 is wound between two timing wheels 66, and at the same time, the deck plate 4 and the second timing belt 61 are connected. The second motor 62 is started, the second synchronous wheel 66 drives the second synchronous belt 61 to rotate, the platform plate 4 can slide on the base 3 along the sliding direction perpendicular to the box door 11, and therefore the thin-layer plate on the bearing plate 5 can be driven to move along the sliding direction perpendicular to the box door 11.

In other embodiments, the second sliding assembly 6 can also be a chain wheel and a chain, two chain wheels are provided and rotatably disposed on the inner bottom wall of the machine case 1, the chain is engaged between the two chain wheels, and the chain is fixedly connected with the platform plate 4. The second sliding component 6 can also be a gear and a rack, the gear is rotatably arranged on the inner bottom wall of the case 1, the rack is slidably arranged on the inner bottom wall of the case 1, and the rack is meshed with the gear and is fixedly connected with the platform plate 4.

The working principle of a thin-layer chromatography scanner in embodiment 1 of the application is as follows: starting a first motor 72, driving a supporting plate 5 to slide out of the case 1 by a first synchronous belt 71, then placing the thin-layer plate on the supporting plate 5, and starting the first motor 72 to enable the supporting plate 5 to drive the thin-layer plate to enter the case 1; and (3) closing the box door 11, starting the second motor 62, driving the platform plate 4 to move by the second synchronous belt 61, moving the thin-layer plate to a specified position, and finally starting the light generator 2, so that the optical fiber with a specified wavelength irradiates on a sample of the thin-layer plate, and detecting the light intensity reflected by the thin-layer plate.

Example 2

As shown in fig. 3 and 4, a thin layer chromatography scanner, example 2 and example 1 differ in that: the thin-layer chromatography scanner also comprises an external optical filter 8, the external optical filter 8 is arranged in the case 1 in a sliding way along the sliding direction of the case door 11, the external optical filter 8 is positioned below the light emitting port of the light generator 2, and the external optical filter 8 is positioned above the bearing plate 5; a third sliding assembly 81 is arranged in the case 1, and the third sliding assembly 81 drives the outer filter 8 to slide. The third sliding assembly 81 is started to drive the external optical filter 8 to slide along the sliding direction of the box door 11, so that the external optical filter 8 with the specified model is moved below the light emitting port of the light generator 2, light emitted by the light generator 2 irradiates the thin-layer plate after secondary screening of the external optical filter 8, and the detection accuracy is improved.

As shown in fig. 4 and 5, the third sliding assembly 81 includes a guide rail 811, a third timing belt 812 and a filter plate 813, where the guide rail 811 may be one, two, three, and the like, in this embodiment, there are two guide rails 811, the two guide rails 811 are fixedly disposed on the inner vertical sidewall of the chassis 1 and are disposed opposite to each other, the filter plate 813 is fixedly connected with a sliding block 8133, the sliding block 8133 is slidably disposed on the guide rail 811, and a sliding direction of the sliding block 8133 is parallel to a sliding direction of the door 11. A base plate 12 is fixedly connected to the inner vertical side wall of the chassis 1, two third synchronous wheels 814 are rotatably arranged on the base plate 12, the two third synchronous wheels 814 are oppositely arranged, a third motor 13 is fixedly connected to the base plate 12, and a driving end of the third motor 13 is fixedly connected to a wheel center of a third synchronous belt 218; the third timing belt 812 is wound between two third timing wheels 814, and the third timing belt 812 is connected to the filter plate 813.

As shown in fig. 4 and 5, three light-transmitting through slots 8131 penetrate through the filter plate 813 in the vertical direction, and the three light-transmitting through slots 8131 are arranged in the sliding direction of the door 11. A supporting ring 8132 is fixedly connected to the wall of the light-transmitting through groove 8131, and the external optical filter 8 is installed in the light-transmitting through groove 8131 and is abutted to the upper surface of the supporting ring 8132. The third motor 13 is started, the third synchronous pulley 814 drives the third synchronous belt 812 to rotate, and the filter plate 813 can drive the external filter 8 to slide along the sliding direction of the box door 11, so that the external filter 8 with the specified model number can move to the lower part of the light emitting opening of the light generator 2.

The theory of operation of a thin-layer chromatography scanner does in embodiment 2 of this application for start third motor 13 for the external optical filter 8 of regulation model removes the below of the light ray emission mouth of light generator 2, then starts light generator 2, and the light that light generator 2 jetted out shines the thin-layer board after 8 external optical filters on, detects the light intensity that the thin-layer board reflects at last can.

Example 3

As shown in fig. 6, example 3 differs from example 1 in a thin layer chromatography scanner: the platform plate 4 is fixedly connected with the base 3, after the supporting plate 5 is moved out of the case 1, the thin-layer plate is placed at a specified position on the supporting plate 5, and then the supporting plate 5 brings the thin-layer plate back into the case 1.

Example 4

As shown in fig. 7 and 8, a thin layer chromatography scanner, example 4 and example 1 are different in that: fixedly connected with connecting block 9 on the first synchronous belt 71, be provided with coupling assembling 91 between supporting plate 5 and the connecting block 9, simultaneously, supporting plate 5 and the upper surface butt of branch piece 41 that slides. Therefore, when the support plate 5 needs to be replaced or cleaned, the support plate 5 may be detached by operating the connection assembly 91.

As shown in fig. 9 and 10, the connecting assembly 91 in this embodiment includes a positioning block 911, a slot 9111 is provided through the connecting block 9, the slot 9111 is provided through the sliding direction perpendicular to the box door 11, and the slot 9111 is provided through one side of the connecting block 9 away from the first synchronous belt 71, the supporting plate 5 is inserted into the slot 9111 and abutted against a slot wall of the slot 9111, the upper surface of the connecting block 9 is provided with a feeding slot 92 communicating with the slot 9111, the positioning block 911 is provided in the feeding slot 92 through sliding in the vertical direction, a positioning groove 51 is provided at a position where the upper surface of the supporting plate 5 is opposite to the feeding slot 92, the bottom end of the positioning block 911 is inserted into the positioning groove 51 and abutted against a slot wall of the positioning groove 51, and a fixing member 93 for fixing the positioning block 911 is provided on the connecting block 9. The fixing function of the fixing piece 93 is released, the positioning block 911 is pulled upwards, so that the positioning block 911 is separated from the positioning groove 51, and the supporting plate 5 can be taken down from the connecting block 9.

As shown in fig. 10, the fixing member 93 includes a limiting block 931, a latch 932, a limiting spring 933 and a positioning spring 934, an abdicating groove 921 is provided on a groove wall of the feeding groove 92 departing from the first synchronous belt 71, and the latch 932 is fixedly connected to a groove wall of the abdicating groove 921 relative to the positioning block 911. The positioning block 911 has been seted up on the lateral wall of one side for the groove of stepping down 921 and has been slided groove 9112, and stopper 931 slides along the horizontal direction and sets up on the groove wall of sliding groove 9112, and the one end that stopper 931 stretches out sliding groove 9112 is the arc end, stopper 931 upper surface and fixture block 932 lower surface butt moreover. Spacing spring 933 one end fixed connection stretches into the groove 9112 that slides at locating piece 911, and spacing spring 933's the other end and the groove wall fixed connection of the groove 9112 that slides, the groove 921 of stepping down is located the cell wall of fixture 932 below and is connected piece 94 even, and positioning spring 934 is fixed and is kept away from one side of locating piece 911 and even between piece 94 at the spacing block 931.

When the supporting plate 5 needs to be detached, the elastic force of the positioning spring 934 is overcome, the positioning block 911 is pulled up, the elastic force of the limiting spring 933 is overcome by the limiting block 931, relative displacement occurs between the arc end of the limiting block 931 and the fixture block 932, so that the limiting block 931 extends into the sliding groove 9112 to compress the limiting spring 933, the fixture block 932 can be upwards crossed by the limiting block 931, and the positioning block 911 can be separated from the positioning groove 51.

The theory of operation of a thin layer chromatography scanner does in this application embodiment 4, in the time of need dismantling bearing board 5, pull-up locating piece 911, make locating piece 911 break away from constant head tank 51, dismantle the unloading with bearing board 5, clear up or change bearing board 5 back, with bearing board 5 butt on the support piece 41 that slides and make bearing board 5 insert slot 9111, push down locating piece 911, stopper 931 crosses fixture block 932 and with the lower surface butt of fixture block 932, locating piece 911 inserts in constant head tank 51, can fix bearing board 5 on connecting block 9.

Example 5

As shown in fig. 11, example 5 differs from example 1 in a thin layer chromatography scanner: the first sliding assembly 7 comprises a first screw rod 73 and a first feeding block 74, the first screw rod 73 is rotatably arranged on the platform plate 4, a fifth motor 75 is further installed on the platform plate 4, and the driving end of the fifth motor 75 is fixedly connected with the first screw rod 73; the first feeding block 74 is fixedly connected with the support plate 5, and meanwhile, the first feeding block 74 is in threaded connection with the first screw 73. The second sliding assembly 6 comprises a second screw 63 and a second feeding block 64, the second screw 63 is rotatably arranged on the inner bottom wall of the case 1, and the second screw 63 is perpendicular to the first screw 73; a fourth motor 65 is further installed on the inner bottom wall of the case 1, and a driving end of the fourth motor 65 is fixedly connected with the second screw 63; the second feed block 64 is fixedly connected to the platen 4, and at the same time, the second feed block 64 is screw-connected to the second screw 63.

The fifth motor 75 is started, the first screw 73 rotates, and the first feeding block 74 can be in threaded feeding on the first screw 73, so as to drive the bearing plate 5 to move; when the fourth motor 65 is started, the second screw 63 rotates, and the second feeding block 64 can be screwed on the second screw 63, so as to drive the platform plate 4 to move.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a feed mechanism which characterized in that: including base (3), landing slab (4) and bearing board (5), landing slab (4) slide to set up or fixed the setting on base (3), bearing board (5) slide to set up on landing slab (4), feed mechanism still includes drive bearing board (5) the first subassembly (7) that slides.

2. A loading mechanism as claimed in claim 1, wherein: the platform plate (4) slides and is arranged on the base (3), and the bearing plate (5) slides and is arranged on the bearing plate (5) along the sliding direction perpendicular to the platform plate (4).

3. A loading mechanism as claimed in claim 2, wherein: and a second sliding assembly (6) for driving the platform board (4) to slide is arranged on the platform board (4).

4. A loading mechanism as claimed in claim 1, wherein: first subassembly (7) that slides includes first synchronous area (71) and first motor (72), first synchronous area (71) are rotated and are set up on landing slab (4), bearing board (5) and first synchronous area (71) are connected, first motor (72) set up on landing slab (4), first motor (72) are used for driving first synchronous area (71) and rotate.

5. A loading mechanism according to claim 3, wherein: the second subassembly (6) that slides includes second hold-in range (61) and second motor (62), second hold-in range (61) rotate to set up on being used for cooperating the scanner that feed mechanism used, landing slab (4) and second hold-in range (61) are connected, second motor (62) set up on being used for cooperating the scanner that feed mechanism used, second motor (62) are used for driving second hold-in range (61) and rotate.

6. A loading mechanism according to claim 4, characterized in that: be provided with on landing slab (4) and slide a piece (41), be provided with connecting block (9) on first synchronous belt (71), bearing board (5) can be dismantled through coupling assembling (91) and connecting block (9) and be connected, one side butt that landing slab (4) were kept away from in bearing board (5) and a piece (41) that slides.

7. A loading mechanism according to claim 6, characterized in that: coupling assembling (91) is including locating piece (911), be provided with slot (9111) on connecting block (9) along the lateral wall of bearing board (5) direction of sliding, one side of first synchronous belt (71) is kept away from in slot (9111) through connection piece (9), bearing board (5) and slot (9111) cell wall are pegged graft, one side lateral wall that the landing slab (4) was kept away from in connecting block (9) runs through and is provided with feed tank (92), setting piece (911) slide and set up in feed tank (92), be provided with constant head tank (51) on bearing board (5) and the relative lateral wall of feed tank (92), locating piece (911) and constant head tank (51) cell wall are pegged graft, be provided with mounting (93) of fixed positioning piece (911) on connecting block (9).

8. A thin layer chromatography scanner characterized by: the thin-layer chromatography scanner comprises a case (1) and a light generator (2), wherein the light generator (2) is arranged in the case (1), the thin-layer chromatography scanner further comprises a feeding mechanism according to any one of claims 1 to 7, and the feeding mechanism is arranged in the case (1) and is opposite to a case opening of the case (1).

9. A thin layer chromatography scanner as claimed in claim 8 wherein: the thin-layer chromatography scanner further comprises an external optical filter (8), the external optical filter (8) is arranged in the case (1) in a sliding mode, the external optical filter (8) is located between a light emitting port of the light generator (2) and a bearing plate (5) of the feeding mechanism, and a third sliding assembly (81) for driving the external optical filter (8) to slide is arranged on the case (1).

10. A thin layer chromatography scanner as claimed in claim 9 wherein: the third subassembly (81) that slides includes guide rail (811), third hold-in range (812) and filter plate (813), guide rail (811) set up in quick-witted case (1), filter plate (813) slide and set up on guide rail (811), external optical filter (8) set up on filter plate (813), third hold-in range (812) rotate set up in quick-witted case (1) and be connected with filter plate (813), be provided with in quick-witted case (1) and be used for driving third hold-in range (812) pivoted third motor (13).

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