Full-automatic feeding device for laboratory

Abstract

The utility model discloses a full-automatic feeding device for a laboratory. The full-automatic feeding device comprises a main reaction top plate; the feeding box is arranged on the top surface of the main reaction top plate, a liquid material bottle and a solid material bottle are arranged on the feeding box, and the liquid material bottle and the solid material bottle are respectively used for storing a liquid material and a solid material; the blowing cover plate is arranged above the feeding box in a liftable mode through a blowing push rod, an air outlet is formed in the bottom face of the blowing cover plate, the air outlet corresponds to the liquid material bottle and the solid material bottle respectively, the air outlet is connected with an air inlet pipeline through a valve, and the air inlet pipeline is connected with an air source through a valve; and the air outlet purges residual materials in the liquid material bottle and the solid material bottle under the air supply of the air source. According to the automatic feeding device, automatic feeding of solid and liquid can be achieved at the same time, feeding can be more sufficient after purging is adopted, materials are prevented from remaining on the wall of the feeding bottle, and cleaning can be conducted on a device pipeline after an experiment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical experiment equipment, in particular to a full-automatic feeding device for laboratory. BACKGROUND

[0002] In a chemical laboratory, it is often necessary to verify the parallelism and repeatability of the process through experiments, and the raw materials need to be dosed during the experiments. The existing dosing method mainly adopts manual mixing of materials, which increases the labor intensity of operation. After the dosing and mixing are completed, the materials need to be added to the reaction kettle for reaction, and then the stirring barrel needs to be cleaned before dosing another kind of raw material, which further increases the labor intensity of the user and reduces the efficiency of the experiment. At the same time, cleaning and stirring can easily cause danger to the user.

[0003] Therefore, people try to improve the laboratory feeding device, and the existing patent device provides many different solutions. Patent document CN202120337559.9 provides a laboratory reagent automatic feeding device. The patent stores reagents in a material bin and measures the amount of feeding through a weighing sensor to realize accurate control of reagent discharge.

[0004] However, the above-mentioned patent still has shortcomings. After the quantitative hopper discharges materials into the test tube, there will be residual materials on the inner wall of the hopper and the corner of the discharge port, which not only causes insufficient feeding, but also makes cleaning difficult because the materials cover the electronic module in the hopper, limiting the use of the above-mentioned patent technology in experiments. SUMMARY

[0005] The present application provides a full-automatic feeding device for laboratory to solve the problem of residual materials in the existing technology.

[0006] In one aspect, the present application provides a full-automatic feeding device for laboratory, comprising:

[0007] a main reaction top plate;

[0008] a feeding box arranged on the top surface of the main reaction top plate, the feeding box being provided with a liquid material bottle and a solid material bottle, the liquid material bottle and the solid material bottle being used to store liquid materials and solid materials respectively;

[0009] a purge cover plate arranged above the feeding box through a purge push rod, the bottom surface of the purge cover plate being provided with gas outlets corresponding to the liquid material bottle and the solid material bottle respectively, the gas outlets being connected with an air inlet pipeline through valves, and the air inlet pipeline being connected with a gas source through a valve, the gas outlets purging the residual materials in the liquid material bottle and the solid material bottle under the supply of the gas source.

[0010] The laboratory full-automatic feeding device has the following advantages:

[0011] The automatic feeding of solid and liquid can be realized at the same time, the feeding can be more sufficient after purging, the material residue on the feeding bottle wall can be prevented, and the device pipeline can be cleaned after the experiment. Moreover, the video monitoring can record and feed back the feeding information in real time, provide the original data of the experiment, and is beneficial to the later inspection. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0013] Fig. 1 The overall structure schematic diagram of a laboratory full-automatic feeding device provided by the embodiments of the present application is shown in the figure.

[0014] Fig. 2 The structure schematic diagram of a liquid feeding assembly provided by the embodiments of the present application is shown in the figure.

[0015] Fig. 3 The structure schematic diagram of a solid feeding assembly provided by the embodiments of the present application is shown in the figure.

[0016] Explanation of reference numerals: 100-main reaction top plate, 110-linear motor, 120-rotary motor, 121-motor shaft, 122-motor rack, 200-sealing push rod, 300-feeding box, 310-liquid material bottle, 311-liquid material bottle cap, 3110-liquid bottle opening, 3111-upper interface, 3112-lower interface, 3113-valve rod, 3114-valve cap, 3115-baffle, 3116-elastic member, 3117-through hole, 312-liquid bottle cap sealing ring, 320-solid material bottle, 321-solid material bottle cap, 3210-valve disc, 3211-disc sealing ring, 3212-valve shaft, 3213-shaft sealing ring, 3214-valve gear, 322-solid bottle cap sealing ring, 330-feeding box support, 340-slideway support, 341-slideway, 350-image acquisition unit, 360-light supplementing unit, 400-purging push rod, 500-purging cover plate, 510-gas outlet, 610-first air inlet valve, 620-second air inlet valve, 630-third air inlet valve, 640-fourth air inlet valve, 650-air inlet pipeline, 700-liquid flowmeter, 800-solid flowmeter. DETAILED DESCRIPTION

[0017] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0018] Figs. 1-3 A structural schematic diagram of a laboratory full-automatic feeding device is provided in the embodiments of the present application. The embodiments of the present application provide a laboratory full-automatic feeding device, which comprises:

[0019] a main reaction top plate 100;

[0020] a feeding box 300 arranged on the top surface of the main reaction top plate 100, the feeding box 300 being provided with a liquid material bottle 310 and a solid material bottle 320, the liquid material bottle 310 and the solid material bottle 320 being respectively used for storing liquid material and solid material;

[0021] a purging cover plate 500 arranged above the feeding box 300 through the purging push rod 400, the bottom surface of the purging cover plate 300 being provided with gas outlets 510 corresponding to the liquid material bottle 310 and the solid material bottle 320, the gas outlets 510 being connected with an air inlet pipeline 650 through valves, and the air inlet pipeline 650 being connected with a gas source through valves, the gas outlets 510 being used for purging the remaining material in the liquid material bottle 310 and the solid material bottle 320 under the air supply of the gas source.

[0022] Exemplarily, the main reaction top plate 100 can be arranged on a reaction kettle, and the main reaction top plate 100 is provided with sealed interfaces corresponding to the liquid material bottle 310 and the solid material bottle 320, the bottom discharge outlets of the liquid material bottle 310 and the solid material bottle 320 can be in close contact with the sealed interfaces to communicate, so that the discharge outlets of the material bottles and the reaction kettle are communicated, and the material can directly enter the reaction kettle after passing through the material bottles.

[0023] Further, the main reaction top plate 100 is further provided with a liquid flow meter 700 and a solid flow meter 800 at the bottom and corresponding to the sealed interfaces, the liquid flow meter 700 and the solid flow meter 800 being respectively connected with two sealed interfaces in sealed connection with the liquid material bottle 310 and the solid material bottle 320, and being used for detecting the flow of the material entering from the sealed interfaces, so as to accurately control the amount of the material entering the reaction kettle.

[0024] In the embodiments of this application, the gas source can be a nitrogen gas source, which is connected to the inlet pipe 650 through a first inlet valve 610 and a second inlet valve 620 in parallel. The inlet pipe 650 is divided into two branches, which are connected to a third inlet valve 630 and a fourth inlet valve 640 respectively. The end of the pipe connected to the third inlet valve 630 is connected to the outlet 510 corresponding to the liquid bottle 310, and the end of the pipe connected to the fourth inlet valve 640 is connected to the outlet 510 corresponding to the solid bottle 320. In use, the experimenter can prepare the materials in advance and add them to the liquid bottle 310 and the solid bottle 320. Then, the liquid bottle 310 and the solid bottle 320 are placed in the corresponding positions on the feeding box 300. Then, the feeding box 300 is moved manually or by a robot and placed on the main reaction top plate 100, so that the discharge ports at the bottom of the liquid bottle 310 and the solid bottle 320 are respectively connected to the sealing interfaces on the main reaction top plate 100. After the feeding is completed, the first air inlet valve 610, the second air inlet valve 620, the third air inlet valve 630 or the fourth air inlet valve 640 are opened to allow nitrogen to enter the bottles and purge the remaining liquid or solid materials in the bottles, so that the materials can enter the reactor more fully and reduce material residue.

[0025] In one possible embodiment, the feed box 300 is mounted on the feed box support 330, which is mounted on the top surface of the main reaction top plate 100 via the sealing push rod 200, and the purging push rod 400 is mounted on the top of the sealing push rod 200.

[0026] For example, when the feed box 300 is placed on the feed box support 330, the sealing push rod 200 can be shortened under the control of the control unit, thereby causing the feed box 300 to drop as a whole, so that the liquid bottle 310 and the solid bottle 320 can contact and seal with the sealing interface on the main reaction top plate 100.

[0027] In one possible embodiment, the top end of the sealing push rod 200 is connected to a slide rail bracket 340, a slide rail 341 is provided on the slide rail bracket 340, the feeding box bracket 330 is connected to the movable part of the slide rail 341, and the feeding box bracket 330 can move horizontally through the bracket 341.

[0028] For example, the slide rail 341 includes a fixed part and a movable part, which are slidably connected. The fixed part is disposed on the slide rail bracket 340, while the movable part is connected to the feeding box bracket 330. Therefore, the feeding box bracket 330 can move relative to the slide rail bracket 340 on the horizontal plane. When the feeding box bracket 330 is pulled out horizontally, it is located diagonally below the purge cover 500. Therefore, placing the feeding box 300 into the feeding box bracket 330 will not be affected by the purge cover 500. When the feeding box 300 is placed on the feeding box bracket 330, the slide rail 341 can be retracted, so that the feeding box 300 returns to directly below the purge cover 500. This not only allows the air outlet 510 on the purge cover 500 to purge the bottle, but also allows the bottle to connect to the sealing interface.

[0029] In one possible embodiment, the feeding box support 330 is provided with an image acquisition unit 350 on the side facing the liquid bottle 310 and / or solid bottle 320. The liquid bottle 310 and / or solid bottle 320 are made of transparent material. The portion of the feeding box support 330 between the image acquisition unit 350 and the liquid bottle 310 and / or solid bottle 320 is also made of transparent material. The image acquisition unit 350 is used to acquire information about the materials inside the liquid bottle 310 and solid bottle 320.

[0030] For example, the image acquisition unit 350 may be provided only on the side facing the liquid bottle 310 or the solid bottle 320, or it may be provided on both sides facing the liquid bottle 310 or the solid bottle 320, so as to monitor the state of the material in the liquid bottle 310 and the solid bottle 320, and record the monitored data to form the original experimental data.

[0031] In the embodiments of this application, a supplementary lighting unit 360 is provided on the side of the feeding box bracket 330 located between the liquid bottle 310 and the solid bottle 320. The side of the feeding box bracket 330 located between the liquid bottle 310 and the solid bottle 320 is also made of transparent material. The supplementary lighting unit 360 is used to provide illumination to the image acquisition unit 350. By providing the supplementary lighting unit 360, the image or video quality acquired by the image acquisition unit 350 can be greatly improved.

[0032] In one possible embodiment, liquid bottle 310 and solid bottle 320 are respectively provided with liquid bottle cap 311 and solid bottle cap 321. Liquid bottle cap 311 and solid bottle cap 321 are respectively provided with vent holes. Vent 510 is located directly above the two vent holes. After the purge push rod 400 is shortened, the vent 510 is inserted into the two vent holes respectively.

[0033] For example, the shape and size of the liquid bottle cap 311 correspond to the opening at the top of the liquid bottle 310. Therefore, when the liquid bottle cap 311 and the liquid bottle 310 are connected, the top of the liquid bottle 310 can be closed, preventing the material from splashing out when the remaining material in the liquid bottle 310 is purged. Similarly, the shape and size of the solid bottle cap 321 correspond to the opening at the top of the solid bottle 320. Therefore, when the solid bottle cap 321 and the solid bottle 320 are connected, the top of the solid bottle 320 can be closed, preventing the material from splashing out when the remaining material in the solid bottle 320 is purged.

[0034] In one possible embodiment, a liquid feeding assembly is provided at the bottom of the liquid bottle 310, and a linear motor 110 is provided at the top of the main reaction top plate 100 at a position corresponding to the liquid feeding assembly. The linear motor 110 is used to drive the liquid feeding assembly to open.

[0035] For example, a liquid bottle cap sealing ring 312 is also provided on the opening at the top of the liquid bottle 310. The liquid bottle cap sealing ring 312 is in close contact with the liquid bottle cap 311, thereby achieving a seal on the opening at the top of the liquid bottle 310.

[0036] In the embodiments of this application, the liquid feeding assembly includes: a liquid valve body connected to the liquid bottle opening 3110 at the bottom of the liquid bottle 310; a valve stem 3113 horizontally slidably inserted into the liquid valve body, with a valve cap 3114 at one end of the valve stem 3113 facing the linear motor 110, and an elastic element 3116 provided between the valve cap 3114 and the liquid valve body, the elastic element 3116 providing elastic force to the valve stem 3113 to move toward the linear motor 110; and a through hole 3117 provided on the side of the valve stem 3113 located inside the liquid valve body, the through hole 3117 connecting the feeding channel inside the liquid valve body when the linear motor 110 pushes the valve stem 3113.

[0037] The top and bottom of the liquid valve body are respectively provided with an upper interface 3111 and a lower interface 3112. The upper interface 3111 is used to seal and connect with the liquid bottle opening 3110 at the bottom of the liquid bottle 310, while the lower interface 3112 is used to connect with the sealing interface on the main reaction top plate 100. Moreover, the upper interface 3110 and the lower interface 3111 are respectively connected to the two ends of the discharge channel inside the liquid valve body.

[0038] When the linear motor 110 extends under the control of the control unit, it compresses the valve cap 3114. Under this compression, the valve cap 3114 and the valve stem 3113 move away from the linear motor 110. During this movement, the elastic element 3116 also shortens and stores elastic potential energy, and the through hole 3117 gradually approaches the discharge channel inside the liquid valve body, eventually connecting the discharge channel and allowing the liquid material to enter the reactor. The control unit can control the extension length of the linear motor 110 as needed, thereby adjusting the flow rate of the liquid material.

[0039] After the liquid material is added, the control unit controls the linear motor 110 to shorten. At this time, the compression of the valve cap 3114 by the linear motor 110 disappears, and the elastic element 3116 releases its elastic potential energy, causing the valve stem 3113 and the valve cap 3114 to move closer to the linear motor 110. This disconnects the material feeding channel inside the liquid valve body, preventing the liquid material from continuing to flow. Finally, the valve stem 3113 stops moving under the limit of the baffle 3115 at the end of the valve stem 3113 and remains in a stable shut-off state.

[0040] In one possible embodiment, a solid feeding assembly is provided at the bottom of the solid feed bottle 320, and a rotary motor 120 is provided at the top of the main reaction top plate 100 at a position corresponding to the solid feeding assembly. The rotary motor 120 is used to drive the solid feeding assembly to open.

[0041] For example, a solid bottle cap sealing ring 322 is also provided on the opening at the top of the solid bottle 320. The solid bottle cap sealing ring 322 is in close contact with the solid bottle cap 321, thereby achieving a seal on the opening at the top of the solid bottle 320.

[0042] In the embodiments of this application, the solid feeding assembly includes: a solid valve body connected to the discharge port at the bottom of the solid material bottle 320; a valve disc 3210 rotatably disposed inside the solid valve body; a valve gear 3214 located outside the solid valve body, the valve gear 3214 being connected to the valve disc 3210 via a valve shaft 3212; and a motor rack 122 disposed on the motor shaft 121 of the rotary motor 120, the motor rack 122 meshing with the valve gear 3214.

[0043] The valve used in this application for controlling the addition of solid materials is a butterfly valve. A disc sealing ring 3211 is provided on the inner wall of the solid valve body at a position corresponding to the valve disc 3210. When the valve disc 3210 rotates to the horizontal position, i.e., the valve is in the closed state, the edge of the valve disc 3210 is in close contact with the disc sealing ring 3211, thereby ensuring that the solid material will not continue to flow after the valve is closed. A through mounting hole is provided on the side wall of the solid valve body, in which the valve shaft 3212 is rotatably mounted. Furthermore, a shaft sealing ring 3213 is provided on the inner side of the mounting hole, which is in close contact with the valve shaft 3212, further ensuring that the solid material will not leak.

[0044] Furthermore, in this application, the motor shaft 121 and the valve gear 3214 are coaxial. When the solid material bottle 320 and the solid feeding assembly descend to their lowest positions, the valve gear 3214 and the motor rack 122 contact and mesh. Under the control of the control unit, the rotary motor 120 begins to rotate, which in turn drives the valve gear 3214 to rotate via the motor rack 122, causing the valve disc 3210 to rotate a certain angle and open. The control unit can control the rotation angle of the rotary motor 120 as needed, thereby adjusting the flow rate of the solid material.

[0045] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0046] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A fully automated laboratory dosing device, characterized in that, The utility model relates to a kind of material feeding box and its control system, including: Main reaction top plate (100); Material feeding box (300) is arranged on the top surface of the main reaction top plate (100), liquid material bottle (310) and solid material bottle (320) are arranged on the material feeding box (300), and the liquid material bottle (310) and the solid material bottle (320) are used to store liquid material and solid material respectively; Purging cover plate (500) is arranged above the material feeding box (300) by purging push rod (400), and the bottom surface of the purging cover plate (500) is provided with gas outlet (510), the gas outlet (510) corresponds to the liquid material bottle (310) and the solid material bottle (320) respectively, the gas outlet (510) is connected with air inlet pipeline (650) by valve, the air inlet pipeline (650) is connected with gas source by valve, and the gas outlet (510) is purged to the remaining material in the liquid material bottle (310) and the solid material bottle (320) under the supply of gas source.

2. A fully automated laboratory reagent feeding device according to claim 1, characterized in that, The material feeding box (300) is arranged on material feeding box support (330), and the material feeding box support (330) is arranged on the top surface of the main reaction top plate (100) by seal push rod (200), and the purging push rod (400) is arranged at the top end of the seal push rod (200).

3. A fully automated laboratory reagent feeding device according to claim 2, characterized in that, The top end of the seal push rod (200) is connected with slide rail support (340), the slide rail support (340) is provided with slide rail (341), the material feeding box support (330) is connected with the movable part of the slide rail (341), and the material feeding box support (330) moves horizontally by the support (340).

4. The laboratory full automation reagent feeding device according to claim 2, characterized in that, The material feeding box support (330) is provided with image acquisition unit (350) on the side surface towards the liquid material bottle (310) and / or solid material bottle (320), the liquid material bottle (310) and / or solid material bottle (320) are made of transparent material, the part between the image acquisition unit (350) and liquid material bottle (310) and / or solid material bottle (320) of the material feeding box support (330) is also made of transparent material, and the image acquisition unit (350) is used to acquire the information of the material in the liquid material bottle (310) and the solid material bottle (320).

5. A fully automated laboratory reagent feeding device according to claim 4, characterized in that, The material feeding box support (330) is provided with light supplement unit (360) on the side surface between the liquid material bottle (310) and the solid material bottle (320), and the side surface between the liquid material bottle (310) and the solid material bottle (320) of the material feeding box support (330) is also made of transparent material, and the light supplement unit (360) is used to provide illumination to the image acquisition unit (350).

6. The laboratory full automation reagent feeding device according to claim 1, wherein, The liquid material bottle (310) and the solid material bottle (320) are respectively provided with a liquid material bottle cover (311) and a solid material bottle cover (321), the liquid material bottle cover (311) and the solid material bottle cover (321) are respectively provided with a gas outlet hole, the gas outlet (510) is located directly above the two gas outlet holes, and the gas outlet (510) is respectively inserted into the two gas outlet holes after the blowing push rod (400) is shortened.

7. The laboratory full automation reagent feeding device according to claim 1, wherein, The bottom of the liquid material bottle (310) is provided with a liquid feeding assembly, and the top of the main reaction top plate (100) is provided with a linear motor (110) at a position corresponding to the liquid feeding assembly, and the linear motor (110) is used to drive the liquid feeding assembly to open.

8. A fully automated laboratory reagent feeding device according to claim 7, characterized in that, The liquid feeding assembly comprises: A liquid valve body connected to the liquid bottle mouth (3110) at the bottom of the liquid material bottle (310); A valve rod (3113) horizontally slidingly inserted into the liquid valve body, wherein one end of the valve rod (3113) towards the linear motor (110) is provided with a valve cap (3114), an elastic member (3116) is arranged between the valve cap (3114) and the liquid valve body, and the elastic member (3116) provides the valve rod (3113) with an elastic force for moving towards the linear motor (110); A through hole (3117) arranged on the side of the valve rod (3113) inside the liquid valve body, and when the linear motor (110) pushes the valve rod (3113), the through hole (3117) connects the discharging channel inside the liquid valve body.

9. The laboratory full automation reagent feeding device according to claim 1, wherein, The bottom of the solid material bottle (320) is provided with a solid feeding assembly, and the top of the main reaction top plate (100) is provided with a rotary motor (120) at a position corresponding to the solid feeding assembly, and the rotary motor (120) is used to drive the solid feeding assembly to open.

10. A fully automated laboratory reagent feeding device according to claim 9, characterized in that, The solid feeding assembly comprises: A solid valve body connected to the discharging port at the bottom of the solid material bottle (320); A valve disc (3210) rotatably arranged in the solid valve body; A valve gear (3214) located outside the solid valve body, wherein the valve gear (3214) is connected to the valve disc (3210) through a valve shaft (3212), and a motor rack (122) is arranged on a motor shaft (121) of the rotary motor (120), and the motor rack (122) is engaged with the valve gear (3214).

Images