Precise trace feeding and weighing equipment

Abstract

The utility model belongs to the technical field of precise trace material taking, and provides precise trace feeding and weighing equipment which comprises a feeding assembly, a feeding assembly, a weighing assembly and a sealing assembly. The feeding assembly comprises a first driving mechanism, a sleeve and a spiral shaft, the spiral shaft is rotationally arranged in the sleeve, the first driving mechanism is used for driving the spiral shaft to rotate, an inlet is formed in the top end of the sleeve, and an outlet is formed in the bottom end of the sleeve; the top end of the feeding assembly is covered with a sealing cover, and the bottom end of the feeding assembly communicates with the sleeve inlet. The outlet of the sleeve is positioned above the weighing assembly; the closing assembly comprises a closing plate and a second driving mechanism, the closing plate is located at the sleeve outlet, and the second driving mechanism is used for driving the closing plate to move so as to close or open the sleeve outlet. According to the equipment, magnesium powder can be rapidly and accurately fed and weighed (the feeding precision is 0.01 G, and the single-time material taking amount is 1.00-10.00 G), and due to the closed design, the safety risk in the operation process is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of precision micro-feeding technology, specifically relating to a precision micro-feeding and weighing device. Background Technology

[0002] Magnesium powder is an important raw material in the brazing process of heat exchangers. However, magnesium powder is flammable and explosive, so it requires special care during handling. Traditional methods of weighing magnesium powder mainly rely on manual operation, which is not only inefficient but also poses a significant safety hazard due to the prolonged exposure of magnesium powder to air. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a precision micro-feeding and weighing device that can solve the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a precision micro-feeding and weighing device, comprising a feeding component, a feeding component, a weighing component, and a sealing component;

[0005] The feeding assembly includes a first driving mechanism, a sleeve, and a spiral shaft. The spiral shaft is rotatably disposed inside the sleeve. The first driving mechanism is used to drive the spiral shaft to rotate. The top end of the sleeve has an inlet, and the bottom end of the sleeve has an outlet.

[0006] The top of the feeding assembly is covered with a sealing cap, and the bottom of the feeding assembly is connected to the sleeve inlet;

[0007] The weighing component is located below the sleeve outlet;

[0008] The sealing assembly includes a sealing plate and a second driving mechanism. The sealing plate is located at the sleeve outlet, and the second driving mechanism is used to drive the sealing plate to move in order to close or open the sleeve outlet.

[0009] Preferably, the sleeve outlet is connected to a conduit, and the conduit sidewall has an embedding groove adapted to the sealing plate.

[0010] Preferably, the feeding assembly has a funnel-shaped structure.

[0011] Preferably, the weighing component is an electronic scale.

[0012] Preferably, the device further includes a control system, wherein the first drive mechanism, the second drive mechanism, and the weighing component are all electrically connected to the control system.

[0013] Preferably, the device further includes a cabinet, and the feeding assembly, the first drive mechanism, the sleeve, the weighing assembly, and the second drive mechanism are all mounted on the cabinet.

[0014] Preferably, the cabinet body is provided with a cavity for placing the explosion-proof cabinet.

[0015] Preferably, the cabinet has a cavity for placing a vacuum cleaner.

[0016] Preferably, the diameter of the spiral shaft is 0.85 cm and the inner diameter of the sleeve is 2 cm.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model provides a precision micro-feeding and weighing device. A feeding tray is placed on a weighing assembly. A second drive mechanism moves a closing plate to open the sleeve outlet, allowing magnesium powder to be fed into the sleeve through a feeding assembly. A first drive mechanism drives a screw shaft to rotate, causing the magnesium powder to fall through the sleeve outlet into the feeding tray for weighing. After feeding is complete, the second drive mechanism moves the closing plate to close the sleeve outlet. This device can achieve rapid and accurate feeding and weighing of magnesium powder (feeding accuracy 0.01G, single feeding volume 1.00G-10.00G), and its enclosed design significantly reduces safety hazards during operation. Attached Figure Description

[0019] Figure 1 This is one of the three-dimensional structural diagrams of the cabinet and related parts of a precision micro-feeding and weighing device provided for an embodiment of this utility model.

[0020] Figure 2 A second three-dimensional structural schematic diagram of the cabinet and related parts of a precision micro-feeding and weighing device provided for an embodiment of this utility model;

[0021] Figure 3 A partial three-dimensional structural diagram of a precision micro-feeding and weighing device provided for an embodiment of this utility model;

[0022] Figure 4 A three-dimensional structural diagram of the feeding component and related parts of a precision micro-feeding and weighing device provided for an embodiment of this utility model;

[0023] Figure 5 A three-dimensional structural diagram of the screw shaft and related parts of a precision micro-feeding and weighing device provided for an embodiment of this utility model;

[0024] Figure 6 A side view of the enclosed assembly and related parts of a precision micro-feeding and weighing device provided for an embodiment of this utility model;

[0025] Figure 7This is a top view of the arc-shaped plate and related parts of a precision micro-feeding and weighing device provided in an embodiment of the present utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Feeding assembly;

[0028] 201. First drive mechanism; 202. Sleeve; 203. Screw shaft;

[0029] 3. Weighing components;

[0030] 4. Sealing cap;

[0031] 501. Enclosed plate; 502. Second drive mechanism; 503. Conduit; 504. Embedded groove; 505. Connecting plate; 506. Arc plate.

[0032] 6. Control system;

[0033] 7. Vacuum cleaner;

[0034] 8. Explosion-proof cabinet;

[0035] 9. Cabinet. Detailed Implementation

[0036] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0037] This embodiment provides a precision micro-feeding and weighing device, including a feeding component 1, a feeding component, a weighing component 3, and a sealing component.

[0038] The feeding assembly includes a first drive mechanism 201, a sleeve 202, and a spiral shaft 203. The spiral shaft 203 is rotatably disposed inside the sleeve 202. The first drive mechanism 201 is used to drive the spiral shaft 203 to rotate. The top end of the sleeve 202 is provided with an inlet, and the bottom end of the sleeve 202 is provided with an outlet.

[0039] For example, see Figure 4-5The sleeve 202 is arranged horizontally. The left end of the spiral shaft 203 is rotatably connected to the inner wall of the left end of the sleeve 202, and the right end of the spiral shaft 203 is rotatably connected to the inner wall of the right end of the sleeve 202. The spiral shaft 203 and the sleeve 202 are coaxial, allowing the spiral shaft 203 to rotate within the sleeve 202, thus transporting the magnesium powder. The first drive mechanism 201 can be a motor, a rotary cylinder, etc. The power output end of the first drive mechanism 201 passes through the sleeve 202 and is coaxially fixed to the spiral shaft 203, so that the spiral shaft 203 can be driven to rotate by the first drive mechanism 201. An inlet is provided on the side wall of the sleeve 202 near the right end, and the inlet faces upward. An outlet is provided on the side wall of the sleeve 202 near the left end, and the outlet faces downward.

[0040] The top of the feeding assembly 1 is covered with a sealing cover 4, and the bottom of the feeding assembly 1 is connected to the inlet of the sleeve 202.

[0041] For example, see Figure 3 The feeding assembly 1 can be a conventional feeding pipe. The discharge port at the bottom of the feeding assembly 1 is connected to the inlet of the sleeve 202, so that the magnesium powder in the feeding assembly 1 can enter the interior of the sleeve 202 through the inlet of the sleeve 202.

[0042] The weighing component 3 is located below the outlet of the sleeve 202.

[0043] For example, see Figure 3 The weighing component 3 can be various types of weighing modules, such as capacitive weighing modules, piezoelectric weighing modules, etc. A material receiving tray can be placed on the weighing component 3 for weighing. The weighing component 3 is located below the outlet of the sleeve 202, so that the magnesium powder in the sleeve 202 can fall onto the weighing component 3 through the outlet.

[0044] The sealing assembly includes a sealing plate 501 and a second drive mechanism 502. The sealing plate 501 is located at the outlet of the sleeve 202, and the second drive mechanism 502 is used to drive the sealing plate 501 to move in order to close or open the outlet of the sleeve 202.

[0045] For example, see Figure 3-6 The sealing plate 501 is horizontally positioned. The second drive mechanism 502 can be a cylinder, hydraulic cylinder, etc. The telescopic end of the second drive mechanism 502 is fixedly connected to the sealing plate 501, and the sealing plate 501 can be driven to move left and right through the second drive mechanism 502. When the sealing plate 501 moves to the outlet of the shielding sleeve 202, the outlet of the sleeve 202 can be closed; conversely, when the sealing plate 501 moves away from the outlet of the sleeve 202, the outlet of the sleeve 202 can be opened.

[0046] Based on the above structure, the precision micro-feeding and weighing device provided in this embodiment places the feeding tray on the weighing component 3. The second drive mechanism 502 drives the closing plate 501 to move and open the sleeve 202 outlet, allowing magnesium powder to be conveyed into the sleeve 202 through the feeding component 1. Then, the first drive mechanism 201 drives the screw shaft 203 to rotate, allowing the magnesium powder to fall through the sleeve 202 outlet into the feeding tray, where it is simultaneously weighed. After the feeding is completed, the second drive mechanism 502 drives the closing plate 501 to move and close the sleeve 202 outlet. This device can achieve rapid and accurate feeding and weighing of magnesium powder (feeding accuracy 0.01G, single feeding amount 1.00G-10.00G), and the enclosed design greatly reduces safety risks during operation.

[0047] It is worth noting that when transporting magnesium powder via the screw shaft 203, the compression of the magnesium powder should be minimized to prevent the magnesium powder from overheating and causing a hazard. For example, the diameter of the screw shaft 203 can be 0.85 cm, and the inner diameter of the sleeve 202 can be 2 cm. This way, a certain distance is maintained between the spiral blades of the screw shaft 203 and the inner wall of the sleeve 202, which can reduce the compression of the magnesium powder. Furthermore, by subdividing the rotation angle of the screw shaft 203, the output amount per degree of rotation of the screw shaft 203 can be precisely controlled.

[0048] Based on the above technical solution, in the technical solution provided in this embodiment, the outlet of the sleeve 202 is connected to the conduit 503, and the side wall of the conduit 503 is provided with an embedding groove 504 that is adapted to the sealing plate 501.

[0049] For example, see Figure 3-6 The telescopic end of the second drive mechanism 502 is connected to the sealing plate 501 via a connecting plate 505. The conduit 503 is vertically oriented, with its top end sealed to the outlet of the sleeve 202, and its bottom end open. This allows magnesium powder inside the sleeve 202 to enter the conduit 503 through the outlet and then fall onto the weighing assembly 3. An embedding groove 504 is provided on the side wall of the conduit 503, which is adapted to the sealing plate 501 and extends into the inner side of the conduit 503, allowing the sealing plate 501 to be inserted into the embedding groove 504 and into the inner side of the conduit 503. The left end of the sealing plate 501 has a semi-circular structure, which is adapted to the inner wall of the conduit 503. (See [reference needed]). Figure 7 When the sealing plate 501 is inserted into the embedded groove 504, it can block the inner cylinder of the conduit 503, thereby closing the outlet of the sleeve 202.

[0050] Therefore, the conduit 503 can not only serve as a guide to prevent magnesium powder from splashing out of the sleeve 202 outlet or even falling onto the outside of the weighing component 3, but also cooperate with the sealing plate 501 through the embedded groove 504 to make the sealing plate 501 more effective.

[0051] The sealing plate 501 may be provided with an arc-shaped plate 506, which is adapted to the outer wall of the conduit 503. (See attached image) Figure 6-7 When the sealing plate 501 is inserted into the embedding groove 504, the arc-shaped plate 506 fits against the outer wall of the conduit 503. On the one hand, the arc-shaped plate 506 can act as a limit, and on the other hand, it can seal the gap between the embedding groove 504 and the sealing plate 501, improving the sealing performance. Moreover, the thickness of the sealing plate 501 can be designed to be thinner, without needing to be similar to the thickness of the embedding groove 504, making the operation smoother.

[0052] The inner side of the curved plate 506 can also be equipped with a buffer pad to serve as a buffer and seal.

[0053] In the technical solution provided in this embodiment, the feeding component 1 can be a funnel-shaped structure.

[0054] For example, see Figure 3 The feeding assembly 1 is a funnel, with its bottom outlet connected to the inlet of the sleeve 202. The top of the feeding assembly 1 is covered with a sealing cap 4, which has a locking device. The feeding assembly 1 and the pipeline must be made of metal to ensure a good seal. The feeding assembly 1 can also include a magnesium powder weight alarm function. Alternatively, the feeding assembly 1 can be a standard feeding pipe or similar structure.

[0055] In the technical solution provided in this embodiment, the weighing component 3 can be an electronic scale. The weighing component 3 has built-in functions such as weighing value display, power on / off, tare (zeroing), and communication with a PLC. The weighing component 3 also has built-in leveling adjustment and leveling effect display functions (such as bubble display). The weighing component 3 has a weighing range of 2kg and an accuracy of 0.01g.

[0056] The feeding and weighing equipment provided in this embodiment also includes a control system 6. The first drive mechanism 201, the second drive mechanism 502, and the weighing component 3 are all electrically connected to the control system 6.

[0057] The control system 6 can control the start and stop of the first drive mechanism 201 and the second drive mechanism 502, and can also receive weight information fed back by the weighing component 3. For example, see Figure 1-2 The control system 6 may include a human-machine interface, which includes functions such as zeroing (tare) of the electronic scale, setting the weight of magnesium powder, starting, and stopping.

[0058] The feeding and weighing equipment provided in this embodiment also includes a cabinet 9, and the feeding component 1, the first drive mechanism 201, the sleeve 202, the weighing component 3, and the second drive mechanism 502 are all mounted on the cabinet 9.

[0059] For example, see Figure 1-6The feeding assembly 1, the first drive mechanism 201, the sleeve 202, the weighing assembly 3, and the second drive mechanism 502 are all mounted on the cabinet 9 via compatible brackets, making the equipment a single unit. The cabinet 9 must have a frame structure sealed with a transparent acrylic sheet. Safety markings, such as "Flammable and explosive materials," "Do not get wet in the rain," and "Do not expose to direct sunlight," are affixed to the surface of the cabinet 9. Magnesium powder is an extremely flammable substance; therefore, the overall protective design of the cabinet 9 must meet the requirements of the T4 dust explosion-proof level.

[0060] The cabinet 9 contains a cavity for housing the explosion-proof cabinet 8, and is equipped with a cabinet door. The explosion-proof cabinet 8 can store a small amount of magnesium powder (maximum 40KG), meets relevant national safety certification standards, and has a maximum external dimension of 500*500*600mm.

[0061] Cabinet 9 contains a cavity for housing the vacuum cleaner 7 and is equipped with a cabinet door. The vacuum cleaner 7 is used to clean dust and magnesium powder particles from the surface of the equipment. The vacuum cleaner has a suction power greater than 15 kPa, a noise level less than 80 dB, and a maximum external dimension of 600*600*900 mm.

[0062] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] 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.

[0065] 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 precision micro-feeding and weighing device, characterized in that, Includes a feeding assembly (1), a conveying assembly, a weighing assembly (3), and a sealing assembly; The feeding assembly includes a first driving mechanism (201), a sleeve (202), and a spiral shaft (203). The spiral shaft (203) is rotatably disposed inside the sleeve (202). The first driving mechanism (201) is used to drive the spiral shaft (203) to rotate. The top end of the sleeve (202) is provided with an inlet, and the bottom end of the sleeve (202) is provided with an outlet. The top of the feeding assembly (1) is covered with a sealing cap (4), and the bottom of the feeding assembly (1) is connected to the inlet of the sleeve (202); The weighing component (3) is located below the outlet of the sleeve (202); The sealing assembly includes a sealing plate (501) and a second driving mechanism (502). The sealing plate (501) is located at the outlet of the sleeve (202), and the second driving mechanism (502) is used to drive the sealing plate (501) to move in order to close or open the outlet of the sleeve (202).

2. The precision micro-feeding and weighing device according to claim 1, characterized in that, The sleeve (202) outlet is connected to a conduit (503), and the conduit (503) has an embedded groove (504) on its side wall that is compatible with the sealing plate (501).

3. The precision micro-feeding and weighing device according to claim 1, characterized in that, The feeding assembly (1) has a funnel-shaped structure.

4. The precision micro-feeding and weighing device according to claim 1, characterized in that, The weighing component (3) is an electronic scale.

5. The precision micro-feeding and weighing device according to claim 1, characterized in that, The device also includes a control system (6), and the first drive mechanism (201), the second drive mechanism (502), and the weighing component (3) are all electrically connected to the control system (6).

6. The precision micro-feeding and weighing device according to claim 1, characterized in that, The equipment also includes a cabinet (9), and the feeding component (1), the first drive mechanism (201), the sleeve (202), the weighing component (3), and the second drive mechanism (502) are all mounted on the cabinet (9).

7. A precision micro-feeding and weighing device according to claim 6, characterized in that, The cabinet (9) has a cavity for placing the explosion-proof cabinet (8).

8. A precision micro-feeding and weighing device according to claim 6, characterized in that, The cabinet (9) has a cavity for placing the vacuum cleaner (7).

9. A precision micro-feeding and weighing device according to claim 1, characterized in that, The diameter of the spiral shaft (203) is 0.85cm, and the inner diameter of the sleeve (202) is 2cm.

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