Skid-mounted automatic weighing and feeding device for laboratory

Abstract

The utility model provides a skid type automatic weighing and feeding device for a laboratory. The skid-type automatic weighing and feeding device for the laboratory comprises a bottom skid; the material bin is installed at the position, close to one side, of the top of the bottom pry, a plurality of material barrels are installed in the material bin through a plurality of baffles, a first opening and a second opening are formed in the top of each material barrel, and an operation panel is installed on one side of the material bin through a supporting rod; a plurality of material pumps are mounted on one side of the inner wall of the material bin, a material pump feeding pipe is mounted at an inlet of each material pump, and a material pump discharging pipe is mounted at an outlet of each material pump. According to the skid-mounted automatic weighing and feeding device for the laboratory, the problems existing in the prior art are solved through the design, workers do not make direct contact with materials, polymerization feeding is carried out through an operation control system, the weighing accuracy is improved, and the situation that the workers are injured by the materials can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of automatic weighing and feeding technology, and in particular to a skid-type automatic weighing and feeding device for laboratory use. Background Technology

[0002] Laboratory-scale experiments require manual weighing and feeding of materials, which is inefficient and can lead to spillage of materials onto weighing instruments, workbenches, or personnel, causing injury. Weighing volatile reagents in an open environment can also harm the health of personnel. To address situations involving multiple reaction vessels, improve feeding efficiency, and prevent the weighing and feeding device from moving during the feeding process, a skid-mounted automatic weighing and feeding device for laboratory use has been designed.

[0003] Most existing automatic weighing and feeding designs are for industrial use and have low integration. Referring to patent application number 202223428423.2, a device for automatic weighing of liquids in the batching process is proposed. It uses a PLC to control an electronic scale and a peristaltic pump, and the weighing platform moves along a slide rail. It is used for automatic batching in the beverage industry. However, this device is not suitable for laboratory polymerization batching. Referring to patent application number 202022762492.1, a mobile weighing and feeding system is proposed. The mobile design can meet the weighing and feeding needs of different workstations. The dust collector can remove dust during feeding to avoid injury to personnel. However, this feeding system has the feeding device, weighing tank and platform scale designed separately, and does not consider the situation of feeding different raw materials at the same time.

[0004] However, the above structure is not suitable for feeding different materials, and the decentralized design of the feeding device, weighing tank and platform scale will affect the accuracy of feeding different materials.

[0005] Therefore, it is necessary to provide a laboratory skid-type automatic weighing and feeding device to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a skid-type automatic weighing and feeding device for laboratory use, which solves the problem that the dispersed feeding devices, weighing tanks and platform scales are not suitable for feeding different materials and will affect the feeding accuracy.

[0007] To solve the above-mentioned technical problems, the laboratory skid-type automatic weighing and feeding device provided by this utility model includes: a bottom skid;

[0008] The material silo is installed on the top of the bottom skid near one side. The interior of the material silo is equipped with multiple material barrels through multiple baffles. Each material barrel has a first opening and a second opening on its top. An operation panel is installed on one side of the material silo via a support rod. Multiple material pumps are installed on one side of the inner wall of the material silo. Each material pump has a material pump inlet pipe installed at its inlet and a material pump outlet pipe installed at its outlet.

[0009] An electronic scale is installed on the top of a skid near the center. A bracket is installed on the top of the electronic scale, and a weighing bucket is installed on the top of the bracket. A feed pipe for a conveying pump with a solenoid valve is installed at the bottom of the weighing bucket. A conveying assembly is installed on the top of the skid near the other side, and a discharge pipe for a conveying pump is installed at the outlet of the conveying assembly.

[0010] The number of material pumps and material tanks corresponds to the number of pumps. The other end of the material pump feed pipe is inserted into the inside of the material tank through the first opening. A check valve is installed at the other end of the material pump feed pipe. Rubber plugs with a central opening are installed inside the first and second openings. The other end of the conveying pump feed pipe is connected to the inlet of the conveying assembly.

[0011] The structure on the bottom skid forms a laboratory skid-type automatic weighing and feeding device, which includes a storage device, a weighing device, a feeding device, a control device, and a skid device. The storage device includes a material bin and multiple material buckets. The material bin is a flip-top material bin. The upper cover of the material bin is connected to the rear baffle by a spring. There is a limit block behind the front baffle of the material bin. The material buckets are stored side by side in the material bin, and baffles are set around the perimeter. The material bucket is a double-opening, double-lid material bucket. The first opening of the material bucket is connected to the lid by a thread, and the lid has a hole in the middle. The second opening of the material bucket lid is a rubber stopper with a hole in the middle.

[0012] The weighing device includes a material pump and supporting pipelines, a weighing bucket, and an electronic scale. The material pump is installed side by side in the upper part of the rear baffle of the material hopper. The material pump inlet pipe extends into the material bucket through the opening of the first open bucket cover and is equipped with a check valve. The material pump outlet pipe extends into the upper part of the weighing bucket through the opening of the material hopper and is fixed by a buckle below the control panel. The weighing bucket is a cylindrical weighing bucket with a conical bottom. The weighing bucket is fixed on a bracket, and the bracket is installed on the electronic scale.

[0013] The feeding device includes a conveying pump and supporting pipelines. The feed pipe of the conveying pump is connected to the outlet of the weighing barrel. A solenoid valve is installed at the outlet of the weighing barrel. The solenoid valve is linked with the controller of the material pump. The discharge pipe of the conveying pump is connected to the reaction vessel.

[0014] The control device includes sensors, controllers, and an operating interface. The sensors transmit the electronic scale data to the operating interface. The controller controls the start and stop of the material pump and the conveying pump and arranges the control buttons on the operating interface. The operating interface is installed on the back of the material bin and is fixed to the rear baffle of the material bin by a support rod.

[0015] The skid device includes a base skid and support legs. The storage device, weighing device, feeding device, and control device are all installed on the base skid.

[0016] Preferably, a sealing cover is installed on the top of the material silo, and multiple buckles are installed on the bottom of the operation panel;

[0017] The clip is used to secure the material pump discharge pipe.

[0018] Preferably, the conveying assembly includes a protective shell, vents, and a conveying pump, wherein the protective shell is used to fix the conveying pump.

[0019] Preferably, a control box is installed on the front of the material silo, and a door is rotatably connected to the front of the control box;

[0020] The control box contains power switches and controllers for operating the equipment.

[0021] Preferably, the electronic scale is equipped with support frames at the top near the front and back, and the weighing bucket has perforations at the front and back, with mechanical seal structures installed inside the perforations.

[0022] Mechanical seal structures are used to increase the seal between the shaft and the perforation.

[0023] Preferably, a rotating shaft is rotatably connected between the two support frames, and a spiral stirring structure is installed on the outer surface of the rotating shaft. A driving device is installed on the front of one of the support frames.

[0024] Compared with related technologies, the skid-type automatic weighing and dispensing device for laboratories provided by this utility model has the following advantages:

[0025] This invention provides a skid-mounted automatic weighing and dispensing device for laboratory use. To increase the applicability and safety of the device, a baffle is first used to fix the material bins inside the material hopper to prevent them from tipping over during movement. Multiple material pumps are installed on one side of the inner wall of the hopper. The materials from different material bins are transported to the weighing bin for weighing through the inlet and outlet pipes of the pumps, which are equipped with check valves. The weighing bins are then mounted on an electronic scale with a bracket. The electronic scale, in conjunction with sensors, can measure the weight of the materials in real time. This design solves the problems existing in the prior art. Personnel do not directly contact the materials. The feeding is done through an operating control system, improving the accuracy of weighing and preventing injury to personnel. Attached Figure Description

[0026] Figure 1 A schematic diagram of the structure of the first embodiment of the laboratory skid-type automatic weighing and dispensing device provided by this utility model;

[0027] Figure 2 A structural schematic diagram of the fixing bracket is provided for this utility model;

[0028] Figure 3 A structural schematic diagram of the second opening is provided for this utility model;

[0029] Figure 4 A schematic diagram of the conveying pump is provided for this utility model;

[0030] Figure 5 A schematic diagram of the second embodiment of the laboratory skid-type automatic weighing and dispensing device provided by this utility model;

[0031] Figure 6 A schematic diagram of the rotating shaft is provided for this utility model.

[0032] Numbered in the diagram: 1. Base skid, 2. Electronic scale, 3. Conveying assembly, 301. Protective shell, 302. Vent hole, 303. Conveying pump, 4. Support bracket, 5. Weighing bucket, 6. Material pump discharge pipe, 7. Control panel, 8. Support rod, 9. Material bin, 10. Control box, 11. Box door, 12. Buckle, 13. Sealing cover, 14. Material pump inlet pipe, 15. Second opening, 16. Material bucket, 17. Baffle, 18. First opening, 19. Solenoid valve, 20. Conveying pump inlet pipe, 21. Conveying pump discharge pipe, 22. Material pump, 23. Drive equipment, 24. Support frame, 25. Mechanical seal structure, 26. Spiral mixing structure, 27. Rotating shaft, 28. Perforation. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] First Embodiment

[0035] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of the laboratory skid-type automatic weighing and dispensing device provided by this utility model; Figure 2 A structural schematic diagram of the fixing bracket is provided for this utility model; Figure 3 A structural schematic diagram of the second opening is provided for this utility model; Figure 4 This invention provides a structural schematic diagram of a delivery pump. The laboratory skid-type automatic weighing and dispensing device includes: a base skid 1;

[0036] Material bin 9 is installed on the top of the bottom skid 1 near one side. Multiple material bins 16 are installed inside the material bin 9 through multiple baffles 17. Each material bin 16 has a first opening 18 and a second opening 15 on its top. An operation panel 7 is installed on one side of the material bin 9 through a support rod 8. Multiple material pumps 22 are installed on one side of the inner wall of the material bin 9. Each material pump 22 has a material pump inlet pipe 14 installed at its inlet and a material pump outlet pipe 14 installed at its outlet.

[0037] Electronic scale 2 is installed on the top of the base skid 1 near the middle. A bracket 4 is installed on the top of the electronic scale 2. A weighing bucket 5 is installed on the top of the bracket 4. A conveying pump inlet pipe 20 with a solenoid valve 19 is installed at the bottom of the weighing bucket 5. A conveying assembly 3 is installed on the top of the base skid 1 near the other side. A conveying pump outlet pipe 21 is installed at the outlet of the conveying assembly 3.

[0038] The number of material pumps 22 and material barrels 16 corresponds to the number of material pumps 22 and 16. The other end of the material pump feed pipe 14 is inserted into the inside of the material barrel 16 through the first opening 18. A check valve is installed at the other end of the material pump feed pipe 14. Rubber plugs with a central opening are provided inside the first opening 18 and the second opening 15. The other end of the conveying pump feed pipe 20 is connected to the inlet of the conveying assembly 3.

[0039] The top of the material silo 9 is equipped with a sealing cover 13, and the bottom of the operation panel 7 is equipped with multiple buckles 12.

[0040] Clip 12 is used to secure the material pump discharge pipe 6.

[0041] The conveying assembly 3 includes a protective shell 301, a vent 302 and a conveying pump 303, wherein the protective shell 301 is used to fix the conveying pump 303.

[0042] The vents are made of 302 stainless steel to aid in heat dissipation.

[0043] A control box 10 is installed on the front of the material silo 9, and a door 11 is rotatably connected to the front of the control box 10.

[0044] The door 11 is equipped with a lock, and the control box 10 contains a power switch and a controller for controlling the operation of the equipment.

[0045] The working principle of the skid-type automatic weighing and dispensing device for laboratory use provided by this utility model is as follows:

[0046] First, the material buckets 16 are fixed inside the material silo 9 by baffles 17 to prevent them from tipping over during movement. Multiple material pumps 22 are installed on one side of the inner wall of the material silo 9. Materials from different material buckets 16 are transported to weighing buckets 5 for weighing via the material pump inlet pipe 14 with a check valve and the material pump outlet pipe 6. The weighing bucket 5 is mounted on an electronic scale 2 via a bracket 4. The electronic scale 2, in conjunction with a sensor, can measure the weight of the materials in real time. In actual use, the rubber plugs with the central opening on the second opening 15 of multiple material buckets 16 are opened, and different materials are added to the different material buckets 16 through the second opening 15. The rubber plugs with the central opening balance the air pressure during feeding. Then, the skid device is moved near the reactor, and the delivery pump outlet pipe 21 is connected to the reactor inlet. Input the feeding amount of various materials on panel 7, turn on the corresponding material pump 22, the material is drawn out through the material pump inlet pipe 14 through the first opening 18 of the material tank 16, and enters the weighing tank 5 through the material pump outlet pipe 6. Electronic scale 2 weighs the weighing tank 5, the fixed bracket 4 and the material. The weighing data of electronic scale 2 is connected to operation panel 7 through sensor. When the set weight is reached, the controller controls the material pump 22 to be turned off. In order to prevent the material pump inlet pipe 14 from being sucked up by the material tank 16 wall when the material pump 22 is drawing material, a check valve is installed at the material end of the material pump inlet pipe 14. After the material is weighed, turn on the conveying component 3 on operation panel 7. The conveying component 3 is linked with the solenoid valve 19 at the outlet of the weighing tank 5. The material enters the reaction vessel through the solenoid valve 19, the conveying pump inlet pipe 20, the conveying component 3 and the conveying pump outlet pipe 21.

[0047] Compared with related technologies, the skid-type automatic weighing and dispensing device for laboratories provided by this utility model has the following advantages:

[0048] To increase the applicability and safety of the automatic weighing and dispensing device for laboratory use, the material bins 16 are first fixed inside the material bin 9 by a baffle 17 to prevent them from tipping over during movement. Multiple material pumps 22 are installed on one side of the inner wall of the material bin 9. The materials in different material bins 16 can be transported to the weighing bin 5 for weighing through the material pump inlet pipe 14 with a check valve and the material pump outlet pipe 6. The weighing bin 5 is mounted on the electronic scale 2 by a bracket 4. The electronic scale 2, in conjunction with a sensor, can measure the weight of the materials in real time. This design solves the problems existing in the prior art. Personnel do not directly contact the materials. The feeding is carried out by the operation control system, which improves the accuracy of weighing and avoids the materials from causing harm to personnel.

[0049] Second Embodiment

[0050] Please refer to the following: Figures 5-6 , Figure 5 A schematic diagram of the second embodiment of the laboratory skid-type automatic weighing and dispensing device provided by this utility model; Figure 6 This utility model provides a structural schematic diagram of the rotating shaft. Based on the laboratory skid-type automatic weighing and dispensing device provided in the first embodiment of this application, the second embodiment of this application proposes another laboratory skid-type automatic weighing and dispensing device. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0051] Specifically, the difference between the laboratory skid-type automatic weighing and feeding device provided in the second embodiment of this application is that the electronic scale 2 is equipped with a support frame 24 near the front and back, and the weighing barrel 5 is provided with perforations 28 on the front and back, and a mechanical seal structure 25 is installed inside the perforations 28.

[0052] Mechanical seal structure 25 is used to increase the seal between shaft 27 and perforation 28.

[0053] A rotating shaft 27 is rotatably connected between the two support frames 24. A spiral stirring structure 26 is installed on the outer surface of the rotating shaft 27. A driving device 23 is installed on the front of one of the support frames 24.

[0054] The drive device 23 includes a housing and a motor or electric motor.

[0055] Compared with related technologies, the skid-type automatic weighing and dispensing device for laboratories provided by this utility model has the following advantages:

[0056] To facilitate the mixing of different materials inside the weighing barrel 5, a drive device 23 with a rotating shaft 27 is installed on the top of the electronic scale 2 via a support frame 24. The outer surface of the rotating shaft 27 is equipped with a spiral stirring structure 26 to uniformly mix the materials. The rotating shaft 27 passes through a perforation 28 on the weighing barrel 5, and the connection is sealed by a mechanical seal structure 25. In actual use, the electronic scale 2 records the weight of the structure on the support frame 24, the bracket 4, and the weighing barrel 5 itself, thus accurately weighing the materials. After the materials enter the weighing barrel 5, the drive device 23 is started, and the materials are stirred by the spiral stirring structure 26. This design allows for thorough stirring of the materials that need to be stirred, which is beneficial for the processing of materials inside the reaction vessel.

[0057] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A skid-mounted automatic weighing and dispensing device for laboratory use, characterized in that, include: Bottom pry; The material silo is installed on the top of the bottom skid near one side. The interior of the material silo is equipped with multiple material barrels through multiple baffles. Each material barrel has a first opening and a second opening on its top. An operation panel is installed on one side of the material silo via a support rod. Multiple material pumps are installed on one side of the inner wall of the material silo. Each material pump has a material pump inlet pipe installed at its inlet and a material pump outlet pipe installed at its outlet. An electronic scale is installed on the top of a skid near the center. A bracket is installed on the top of the electronic scale, and a weighing bucket is installed on the top of the bracket. A feed pipe for a conveying pump with a solenoid valve is installed at the bottom of the weighing bucket. A conveying assembly is installed on the top of the skid near the other side, and a discharge pipe for a conveying pump is installed at the outlet of the conveying assembly.

2. The laboratory skid-mounted automatic weighing and dispensing device according to claim 1, characterized in that, The top of the material silo is fitted with a sealing cover, and the bottom of the control panel is fitted with multiple clips.

3. The laboratory skid-mounted automatic weighing and dispensing device according to claim 1, characterized in that, The conveying assembly includes a protective shell, vents, and a conveying pump, wherein the protective shell is used to fix the conveying pump.

4. The laboratory skid-mounted automatic weighing and dispensing device according to claim 1, characterized in that, A control box is installed on the front of the material silo, and a door is rotatably connected to the front of the control box.

5. The laboratory skid-mounted automatic weighing and dispensing device according to claim 1, characterized in that, The electronic scale has support frames installed on the top near the front and back. The weighing bucket has perforations on the front and back, and mechanical seals are installed inside the perforations.

6. The laboratory skid-type automatic weighing and dispensing device according to claim 5, characterized in that, A rotating shaft is rotatably connected between the two support frames, and a spiral stirring structure is installed on the outer surface of the rotating shaft. A driving device is installed on the front of one of the support frames.

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