Multi-sample loading system

Abstract

The present invention discloses a multi-sample loading system, which is fixed on a mounting table and includes: a turntable, a conveying mechanism and a lifting mechanism. The turntable is used to rotate the sample cup, and the conveying mechanism is provided with a tray, which is used to stably receive the sample cup and transfer it between the turntable and the lifting mechanism; the lifting mechanism is used to lift the sample cup to a point to be tested. The application reduces the number of times the transfer components are replaced through the cooperation of the turntable with the linear transport mechanism and the lifting mechanism, ensures the accuracy and reliability of the transfer, and makes the detection efficiency higher.

Description

Technical Field

[0001] The invention relates to a multi-sample loading system. Background Art

[0002] In many fields of industry, it is often necessary to send the samples to be tested to the designated test points for testing, and the process gradually changes from single measurement to multiple measurements, and from manual to semi-automatic and then to fully automatic measurement.

[0003] The working principle of the existing sample loading system is as follows: the sample exchanger places the required sample 1 on the loading lifting rod 2. The loading lifting rod 2 delivers the sample box or sample 1 into the sample rack 3, the loading lifting rod 2 further descends, the conveyor moves the sample rack 3 and the sample box out of the sample chamber 4, the sample box or sample 1 is moved into the spectral chamber, and the sample box or sample 1 is pushed into the analysis position.

[0004] See also Figure 1 As shown, Figure 1 The following is a simplified schematic diagram of the existing sample loading system. Figure 1 As shown, the sample loading system of the prior art requires multiple motors such as a conveyor motor 5, a loading lifting motor 6, a sample chamber gate motor 7, a spectral chamber lifting rod motor 8, and a sample rotation motor to ensure that the object to be tested reaches the measurement position. As a result, the object to be tested needs to perform multiple movements to reach the test point, and the existing transfer member (sample rack 3) does not have a specific positioning component, resulting in the inability to ensure the accuracy of the sample in place. The more times the sample is transferred, the easier it is to deviate. When it reaches the spectral chamber, it is necessary to use a sample rotation motor and other mechanisms to adjust the position of the sample, and perform multiple position debugging actions. Summary of the invention

[0005] In view of the above technical problems, the present application proposes a multi-sample loading system, which aims to overcome the problem that the existing sample loading system uses too many motors and the product is transferred too many times during the transportation process, resulting in mechanical transfer errors.

[0006] In order to achieve the above technical objectives, this application adopts the following technical means:

[0007] The multi-sample loading system, which is fixed to the mounting table, includes:

[0008] A turntable, which is arranged on the mounting table through a fixed seat and is used to rotate the sample cup. The turntable is connected to a drive motor through a rotating shaft, and the drive motor drives the turntable to rotate; the turntable is close to the sample chamber or arranged in the sample chamber; the turntable is provided with a sample slot with an opening facing the edge;

[0009] The conveying mechanism comprises:

[0010] A conveying wheel and a conveying belt, wherein the conveying wheel is respectively arranged at a fixed seat and a lifting mechanism, the conveying belt is sleeved on the conveying wheel, and the conveying wheel is driven by a horizontal motor;

[0011] A guide rail, which is laid from below the turntable to the jacking mechanism;

[0012] A tray, which is transversely fixed on the guide rail through a bracket and a slider, and the tray moves along the guide rail under the drive of the conveyor belt. The tray is an annular body with an opening, and the opening faces the lifting mechanism. The tray is concentric with the sample cup;

[0013] The lifting mechanism is fixed to the mounting platform and is positioned in the spectral chamber after lifting. The lifting mechanism includes a screw with a screw motor connected to the bottom. A cup holder is fixed to the top of the screw, and the cup holder rises and falls under the push of the screw.

[0014] Preferably, it also includes a first photoelectric switch and a second photoelectric switch, wherein the first photoelectric switch is arranged on the door of the spectroscopy room for sensing the door opening; the second photoelectric switch is arranged in the spectroscopy room for sensing whether the tray reaches the position for docking with the lifting mechanism.

[0015] Preferably, the turntable is fixed to the fixing base by four height adjustment bolts.

[0016] Preferably, a liftable guide column is provided in the annular body, and a limit column with a protruding surface is provided on the annular body, and the guide column and the limit column are distributed on opposite ends of the opening.

[0017] Preferably, the height of the limiting column is flush with the upper surface of the turntable, and when the tray moves to the sampling position, the limiting column is located at the opening of the sample slot.

[0018] Preferably, a spring balancing device is evenly distributed between the annular body and the bracket, and the spring balancing device is a guide column and a spring sleeved on the guide column, the guide column passes through the annular body, and the spring is clamped between the annular body and the bracket.

[0019] Preferably, an annular groove is provided at the bottom of the cup holder, and the annular groove cooperates with the sample cup.

[0020] Due to the adoption of the above technical solution, the present application reduces the number of times the transmission components are replaced through the cooperation of the turntable with the linear transport mechanism and the jacking mechanism, ensures the accuracy and reliability of the transmission, and makes the detection efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure is a schematic diagram of the structure of an existing sample loading system.

[0022] Figure 2 It is a structural schematic diagram of an embodiment of the present application.

[0023] Figure 3 The top view of the spectroscopy chamber was removed for this application;

[0024] Figure 4 Side view of the spectroscopy chamber removed for this application;

[0025] Figure 5 It is a schematic diagram of the tray part;

[0026] Figure 6 It is a schematic diagram of the structure of the cup holder. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0028] The multi-sample loading system of the present application is fixed on the mounting table 9. The multi-sample loading system includes a turntable 10, a conveying mechanism 11 and a lifting mechanism 12. For the specific structure, please refer to Figures 2 to 4 shown.

[0029] The turntable 10 of the present application can be close to the sample chamber or directly located in the sample chamber. The turntable 10 is mainly used to smoothly transport the sample bottle A out of the sample chamber and transfer it to the conveying mechanism 11. The turntable 10 is fixed to the fixing seat 102 by four height adjustment bolts 101, and is locked by the fixing nut after being adjusted to a suitable height. The turntable 10 is arranged on the mounting table 9 through the fixing seat 102, and is connected to a driving motor 103 through a rotating shaft, and the turntable 10 is rotated by the driving motor 103. Figure 3 As shown, the turntable 10 is provided with a plurality of sample slots 104 with openings facing the edge thereof. The turntable 10 reaches the sampling position B after rotating half a circle from the sample chamber, and is facing the conveying mechanism 11 and the lifting mechanism 12 at this time.

[0030] like Figure 3 and Figure 4As shown, the conveying mechanism 11 of the present application includes a conveying wheel 111 and a conveyor belt 112, a guide rail 113 and a tray 114. There are two conveying wheels 111, which cooperate with the conveyor belt 112 to form the main conveying structure. The conveying wheels 111 are respectively arranged at the fixed seat 14 and the lifting mechanism 12, and the conveyor belt 112 is sleeved on the conveying wheel 111, and the conveying wheel 111 is driven by a horizontal motor 15. The guide rail 113 is laid under the turntable 10 to the lifting mechanism. The tray 114 is horizontally fixed on the guide rail 113 by a bracket 115 and a slider. The tray 114 moves along the guide rail 113 driven by the conveyor belt 112. The conveying of the present application is a linear track, which reduces the risk of deviation caused by multiple turns in the conveying process compared to the prior art.

[0031] See also Figure 5 As shown, it is a partial enlarged view of the tray 114 of the present application. The tray 114 is an annular body with an opening, and the opening faces the lifting mechanism 12. The tray 114 is concentric with the sample cup A, so as to ensure that the tray 114 will not be offset when receiving the sample cup A, and ensure the accuracy during transportation. A liftable guide column 117 is provided in the annular body of the tray 114, and a stop column 116 with a protruding surface is provided on the annular body. The guide column 117 and the stop column 116 are distributed at opposite ends of the opening. The height of the stop column 116 is flush with the upper surface of the turntable 10. When the tray 114 moves to the sampling position B, the stop column 116 is located at the opening of the sample slot 104. The stop column 116 is mainly used to accurately limit and stably receive the sample cup A in the sample slot 104. The liftable guide post 117 gradually moves downward when the tray 114 moves toward the sampling position B, and gradually moves upward when the tray 114 removes the sampling position B until the height is consistent with the limit post 116. During transportation, the limit post 116 and the liftable guide post 117 restrict the sample cup A between them, ensuring that the sample cup A does not shake during the movement and is in a concentric state with the tray 114.

[0032] In addition, a spring balancing device is evenly distributed between the annular body and the bracket. The spring balancing device is a guide post and a spring sleeved on the guide post. The guide post passes through the annular body, and the spring is clamped between the annular body and the bracket. The spring balancing device is evenly distributed and shares the force, which can increase relative stability during transportation.

[0033] See also Figure 2 , Figure 3 and Figure 4The lifting mechanism 12 of the present application is fixed on the mounting table 9. The lifting mechanism is used to lift the sample cup A to make it reach the measurement point in the spectral chamber. As shown in the figure, the lifting mechanism 12 of the present application includes a screw 122 with a screw motor 121 connected to the bottom, and a cup holder 123 is connected and fixed to the top of the screw. The cup holder 123 rises and falls under the push of the screw 122. Figure 6 As shown, the bottom of the cup holder 123 is provided with an annular groove 1231, and the bottom of the sample cup A is provided with a raised clamping ring, so that the annular groove and the sample cup cooperate with each other to ensure accurate positioning.

[0034] In order to realize the process of automated transportation, the present application further adds a first photoelectric switch and a second photoelectric switch. The first photoelectric switch is arranged on the door of the spectral room D, and is automatically used to sense the door opening when the tray 114 arrives at the door of the spectral room. The second photoelectric switch is arranged in the spectral room D, and is used to sense whether the tray has reached the position of docking with the lifting mechanism when the tray arrives.

[0035] The present application improves the structure of the original sample loading system, simplifies the conveying process, reduces the number of times the sample cup A is transferred, and adds positioning technology during transportation, such as the design of the tray and the design of the cup holder, etc. Therefore, the present application can achieve the accuracy and reliability of the transfer, making the detection efficiency higher.

[0036] The above-described embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. Equivalent changes and modifications made to the present invention by those skilled in the art should all fall within the scope of the claims attached to the present invention.

Claims

1. Multi-sample loading system, which is fixed on the installation table, It is characterized in that include: A turntable, which is arranged on the mounting table through a fixed seat and is used to rotate the sample cup. The turntable is connected to a drive motor through a rotating shaft, and the drive motor drives the turntable to rotate; The turntable is close to the sample chamber or is arranged in the sample chamber; the turntable is provided with a sample slot with an opening facing the edge; The conveying mechanism comprises: A conveying wheel and a conveying belt, wherein the conveying wheel is respectively arranged at a fixed seat and a lifting mechanism, the conveying belt is sleeved on the conveying wheel, and the conveying wheel is driven by a horizontal motor; A guide rail, which is laid from below the turntable to the jacking mechanism; A tray, which is transversely fixed on the guide rail through a bracket and a slider, and the tray moves along the guide rail under the drive of the conveyor belt. The tray is an annular body with an opening, and the opening faces the lifting mechanism. The tray is concentric with the sample cup; The lifting mechanism is fixed to the mounting platform and is positioned in the spectral chamber after lifting. The lifting mechanism includes a screw rod with a screw motor connected to the bottom. A cup holder is connected and fixed to the top of the screw rod. The cup holder rises and falls under the push of the screw rod. It also includes a first photoelectric switch and a second photoelectric switch, wherein the first photoelectric switch is disposed on the door of the spectroscopy room and is used to sense the door opening; the second photoelectric switch is disposed in the spectroscopy room and is used to sense whether the tray has reached a position where it is docked with the lifting mechanism; The turntable is fixed on the fixing seat by four height adjustment bolts.

2. The multi-sample loading system according to claim 1, It is characterized in that A liftable guide column is arranged in the annular body, and a limit column with a protruding surface is arranged on the annular body. The guide column and the limit column are distributed at opposite ends of the opening.

3. The multi-sample loading system according to claim 2, It is characterized in that The height of the limiting column is flush with the upper surface of the turntable, and when the tray moves to the sampling position, the limiting column is located at the opening of the sample slot.

4. The multi-sample loading system according to claim 2 or 3, It is characterized in that A spring balancing device is evenly distributed between the annular body and the bracket. The spring balancing device is a guide column and a spring sleeved on the guide column. The guide column passes through the annular body, and the spring is clamped between the annular body and the bracket.

5. The multi-sample loading system according to claim 1, It is characterized in that An annular groove is provided at the bottom of the cup holder, and the annular groove cooperates with the sample cup.

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