Accurate batching device for metal powder mixing

Abstract

The utility model discloses a metal powder mixing accurate batching device, including raw material storage bin, material mixing bin, blanking dustproof horn mouth, negative pressure dust collection device and wagon balance weighing apparatus, the raw material storage bin is provided on the platform support frame, the material mixing bin is provided on the wagon balance weighing apparatus, the raw material storage bin is located at the inclined upper part of the material mixing bin, and the negative pressure dust collection device is located above the material mixing bin. A pneumatic control valve is arranged below the raw material storage bin, a closed bin cover is arranged on the mixing bin, a feeding port is formed in the closed bin cover, and the pneumatic control valve is in non-contact connection with the feeding port in the closed bin cover through a discharging steel wire hose. Through the connection design of the raw material storage bin, the mixing bin and the wagon balance weighing device, accurate batching of metal powder is achieved, the structure is simple, investment is small, operation is convenient and efficient, environment friendliness and harmlessness are achieved, the defects that a traditional manual method is low in efficiency and large in dust raising amount are overcome, working efficiency and production batching accuracy are improved, and production cost is reduced. And the personal safety and health of workers are ensured.

Description

Technical Field

[0001] The utility model relates to a mixing and batching device, in particular to a metal powder mixing and precise batching device, belonging to the technical field of powder metallurgy equipment. Background Art

[0002] At present, in the field of powder molding, raw materials often use one or more powders at the same time. Especially in the metal powder molding industry, there are problems with efficiency, environmental protection, convenience and accuracy when mixing more than two metal powders. In order to reduce project investment, some companies use simple manual weighing and mixing, which has problems of dust and low efficiency; some companies invest a lot of equipment to replace manual labor, which has the disadvantages of high cost and uneconomical. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to overcome the low efficiency and uneconomical problems of the existing two kinds of metal powder batching, and to provide a metal powder precise batching device, which realizes the precise batching of different metal powders by controlling the opening and closing degree of the pneumatic valve of the special silo and cooperating with the weighing scale on the ground. The utility model has the advantages of simple structure, convenient operation, accurate control, environmental protection and no dust, and improves work efficiency and production convenience.

[0004] The technical solution adopted by the utility model to solve the technical problem is:

[0005] A metal powder mixing and precise batching device comprises a raw material storage bin and a mixing bin, the metal powder mixing and precise batching device also comprises a dust-proof bell for unloading, a negative pressure dust collecting device and a floor scale, the raw material storage bin is arranged on a platform support frame, the mixing bin is arranged on the floor scale, the raw material storage bin is located obliquely above the mixing bin, a pneumatic control valve is arranged below the raw material storage bin, a closed bin cover is arranged on the mixing bin, a feed port is arranged on the closed bin cover, and the pneumatic control valve is non-contactly connected to the feed port on the closed bin cover through a unloading steel wire hose.

[0006] The diameter of the feed port on the closed bin cover is larger than the diameter of the discharge wire hose, and they are in a non-contact connection state. The gap between the two is covered by a dustproof cloth. The discharge wire hose is non-contact with the mixing bin before the floor scale is zeroed, ensuring the accuracy of zeroing before weighing.

[0007] The negative pressure dust collecting device is arranged on the upper side of the raw material storage bin and is composed of a low-power motor and a filtering device. There is negative pressure on the raw material storage bin and dust does not leak out.

[0008] There are two or more raw material storage bins, which are evenly arranged obliquely above the mixing bin; the mixing bin is provided with two or more closed bin covers, and the number corresponds to the number of material storage bins; the lower part of each raw material storage bin is non-contactly connected to the feed port on the corresponding closed bin cover on the mixing bin through a pneumatic control valve and a discharge steel wire hose, and the pneumatic control valve can manually control the discharge amount.

[0009] A discharge connection valve is arranged at the center of the bottom of the mixing bin.

[0010] The dust-proof bell mouth for material discharge is smaller than the bottom of the metal powder ton bag, and the ton bag is pressed on the bell mouth to play a sealing role; the opening and closing degree of the pneumatic control valve can control the size of the material discharge flow rate, which is convenient for accurate batching.

[0011] The positive beneficial effects of the utility model are:

[0012] The utility model has a simple structure and low investment, and is easy for production personnel to control and operate. During production, the operator hoists the raw material bag to the upper bell mouth of the raw material bin through a crane. After the lower discharge port of the raw material bag is opened, the raw material bag is hoisted and placed on the bell mouth, which plays a sealing role. After the negative pressure device is started, there is no dust. After the raw material bin is filled with raw materials, open the pneumatic valve at the bottom of the raw material bin to start unloading. The electronic floor scale displays the unloading weight. Before the unloading is close to the target weight, control the opening and closing degree of the pneumatic valve to the target batching weight to complete the batching.

[0013] When in use, hang the ton bag of metal powder raw material on the upper part of the bell mouth, start the negative pressure dust collecting device on the side of the raw material bin, complete the filling of raw materials into the raw material bin, and before batching, disconnect the connection between the mixing bin and the unloading wire hose, retract the dust cover at the bottom of the unloading wire hose, set the scale to zero, lower the dust cover of the unloading wire hose, and control the pneumatic valve to complete the unloading weight control.

[0014] The utility model realizes the precise proportioning of metal powder through the connection design of the raw material storage bin, the mixing bin and the floor scale. It has a simple structure, low investment, convenient and efficient operation, and is environmentally friendly and harmless. It avoids the disadvantages of low efficiency and high dust of traditional manual methods, improves work efficiency and the accuracy of production proportioning, and ensures the personal safety and health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] The present invention will be further explained and illustrated below in conjunction with the accompanying drawings and specific embodiments:

[0017] Example: See Figure 1A metal powder mixing and precise batching device comprises a raw material storage bin 3 and a mixing bin 6, and also comprises a dust-proof bell mouth 1 for unloading, a negative pressure dust collecting device 2 and a floor scale 7. The raw material storage bin 3 is arranged on a platform support frame 10, and the mixing bin 6 is arranged on the floor scale 7. The raw material storage bin 3 is located obliquely above the mixing bin 6. A pneumatic control valve 4 is arranged below the raw material storage bin 3, and a closed bin cover 9 is arranged on the mixing bin 6. A feed port is arranged on the closed bin cover 9. The pneumatic control valve 4 is non-contactly connected with the feed port on the closed bin cover 9 through a unloading steel wire hose 5.

[0018] The diameter of the feed port on the closed bin cover 9 is larger than the diameter of the discharge wire hose 5, and they are in a non-contact connection state. The gap between the two is covered by a dustproof cloth. The discharge wire hose 5 is in non-contact with the mixing bin 6 before the floor scale 7 is set to zero, ensuring the accuracy of zeroing before weighing.

[0019] The negative pressure dust collecting device 2 is arranged on the upper side of the raw material storage bin 3, and is composed of a low-power motor and a filtering device. There is negative pressure on the raw material storage bin 3, and dust does not leak out.

[0020] Among them: there are two or more raw material storage bins 3, which are evenly arranged obliquely above the mixing bin 6; two or more closed bin covers 9 are arranged on the mixing bin 6, and the number corresponds to the number of material storage bins 3; the lower part of each raw material storage bin 3 is non-contactly connected to the feed port on the corresponding closed bin cover 9 on the mixing bin 6 through a pneumatic control valve 4 and a discharge steel wire hose 5, and the pneumatic control valve 4 can manually control the discharge amount.

[0021] A discharge connection valve 8 is provided at the center of the bottom of the mixing bin 6 .

[0022] The dust-proof bell mouth 1 of the unloading material is smaller than the bag bottom of the metal powder ton bag, and the ton bag is pressed on the bell mouth to play a sealing role; the opening and closing degree of the unloading pneumatic valve 4 can control the size of the unloading flow rate, which is convenient for accurate batching.

[0023] The utility model has a simple structure and low investment, and is easy for production personnel to control and operate. During production, the operator hoists the raw material bag to the upper bell mouth of the raw material bin through a crane. After the lower discharge port of the raw material bag is opened, the raw material bag is hoisted and placed on the bell mouth, which plays a sealing role. After the negative pressure device is started, there is no dust. After the raw material bin is filled with raw materials, open the pneumatic valve at the bottom of the raw material bin to start unloading. The electronic floor scale displays the unloading weight. Before the unloading is close to the target weight, control the opening and closing degree of the pneumatic valve to the target batching weight to complete the batching.

[0024] When in use, hang the ton bag of metal powder raw material on the upper part of the bell mouth, start the negative pressure dust collecting device on the side of the raw material bin, complete the filling of raw materials into the raw material bin, and before batching, disconnect the connection between the mixing bin and the unloading wire hose, retract the dust cover at the bottom of the unloading wire hose, set the scale to zero, lower the dust cover of the unloading wire hose, and control the pneumatic valve to complete the unloading weight control.

[0025] The utility model realizes the precise proportioning of metal powder through the connection design of the raw material storage bin, the mixing bin and the floor scale. It has a simple structure, low investment, convenient and efficient operation, and is environmentally friendly and harmless. It avoids the disadvantages of low efficiency and high dust of traditional manual methods, improves work efficiency and the accuracy of production proportioning, and ensures the personal safety and health of workers.

Claims

1. A metal powder mixing and precise batching device, comprising a raw material storage bin (3) and a mixing bin (6), characterized in that: The metal powder mixing precision batching device also includes a material discharge dust-proof bell mouth (1), a negative pressure dust collecting device (2) and a floor scale (7); the raw material storage bin (3) is arranged on a platform support frame (10); the mixing bin (6) is arranged on a floor scale (7); the raw material storage bin (3) is located obliquely above the mixing bin (6); a pneumatic control valve (4) is arranged below the raw material storage bin (3); a sealed bin cover (9) is arranged on the mixing bin (6); a feed port is arranged on the sealed bin cover (9); and the pneumatic control valve (4) is non-contactly connected to the feed port on the sealed bin cover (9) through a material discharge steel wire hose (5).

2. The metal powder mixing and precise batching device according to claim 1 is characterized in that: The diameter of the feed port on the closed bin cover (9) is larger than the diameter of the discharge wire hose (5), and they are in a non-contact connection state. The gap between the two is covered by a dustproof cloth. The discharge wire hose (5) is in non-contact with the mixing bin (6) before the floor scale (7) is zeroed, thereby ensuring the accuracy of zeroing before weighing.

3. The metal powder mixing and precise batching device according to claim 1 is characterized in that: The negative pressure dust collecting device (2) is arranged on the upper side of the storage bin (3), and is composed of a low-power motor and a filtering device. Negative pressure is applied to the raw material storage bin (3), and dust does not leak out.

4. The metal powder mixing and precise batching device according to claim 1, characterized in that: There are two or more storage bins (3) uniformly arranged obliquely above the mixing bin (6); the mixing bin (6) is provided with two or more sealed bin covers (9), the number of which corresponds to the number of storage bins (3); the lower part of each storage bin (3) is non-contactly connected to the feed port on the corresponding sealed bin cover (9) on the mixing bin (6) through a pneumatic control valve (4) and a discharge wire hose (5), and the pneumatic control valve (4) can manually control the discharge amount.

5. The metal powder mixing and precise batching device according to claim 1 is characterized in that: A discharge connection valve (8) is provided at the center of the bottom of the mixing bin (6).

6. The metal powder mixing and precise batching device according to claim 1, characterized in that: The dust-proof bell mouth (1) for material discharge is smaller than the bottom of the metal powder ton bag, and the ton bag is pressed on the bell mouth to achieve a sealing effect; the opening and closing degree of the pneumatic control valve (4) can control the size of the material discharge flow rate, thereby facilitating accurate batching.

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