Powder weighing and conveying device

Abstract

The utility model relates to powder conveying technical field discloses a kind of powder weighing conveying devices, comprising: rack, the top of rack is provided with rectangular slot, the outer wall surface of rotating roller is sleeved with conveying belt, weighing structure, weighing structure is set in the top of rack for the powder weighing, and weighing structure includes: support, weighter, briquetting, shutter, powder loading box and through slot, support is fixedly connected in the top of rack symmetrically, weighter is fixedly connected in the wall surface of each support, briquetting is fixedly connected in the top of each weighter, shutter is fixedly connected in the rear wall surface of symmetric support, powder loading box is movably arranged between symmetric support, through slot is passed through and is established in the top of powder loading box, the cavity of powder loading box can load the powder required weighing, weighing structure utilizes rotatable powder loading box to weigh and discharge, and when powder is discharged to the top of loading box, the shielding of shutter is cooperated using smaller height difference to effectively solve the problem that powder is raised.

Description

Technical Field

[0001] This utility model belongs to the field of powder conveying, specifically, it relates to a powder weighing and conveying device. Background Technology

[0002] Powder weighing and conveying systems are automated systems designed for the metering and transmission needs of powdered materials. They combine accurate weighing with efficient conveying and are widely used in industries such as food, chemical, building materials, pharmaceuticals, and metallurgy.

[0003] When powder is added to the conveyor after weighing, the powder often gets thrown up due to the height difference. The thrown powder not only reduces the original weight after weighing, but also affects the respiratory health of the workers.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A powder weighing and conveying device, comprising: The frame has a rectangular groove at the top, and symmetrical rotating rollers are connected in the rectangular groove. A conveyor belt is fitted onto the outer wall of the rollers. A motor that drives the rollers is installed on the wall of the frame. A material box is fixedly connected to the outer wall of the conveyor belt. The material box is a rectangular box with an open top. The weighing structure, located at the top of the frame, is used to weigh powder. The weighing structure includes: supports, weighing devices, pressure blocks, baffles, powder boxes, and through slots. Supports are symmetrically and fixedly connected to the top of the frame. Weighing devices are fixedly connected to the wall of each support, pressure blocks are fixedly connected to the top of each weighing device, baffles are fixedly connected to the rear wall of the symmetrical supports, and powder boxes are movably disposed between the symmetrical supports. Through slots are formed through the top of the powder boxes, allowing the boxes to hold the required amount of powder to be weighed.

[0006] In a preferred embodiment of this utility model, the support is a plate with a concave cross-section, the weighing device is located inside the opening of the support, the pressure block is also located inside the opening of the support, and the cover plate is an arc-shaped plate.

[0007] In a preferred embodiment of this utility model, the powder box is a hollow box with a capsule-shaped cross-section, and through slots are symmetrically opened on the arc surface of the top of the powder box, so that the arc surface of the top of the powder box can contact the bottom arc surface of the cover plate.

[0008] In a preferred embodiment of the present invention, the weighing structure further includes a limiting rod, a servo motor, and a plug shaft. The limiting rod is fixedly connected to the front wall of the symmetrical support, the servo motor is fixedly connected to the side wall of the pressure block on one side, and the plug shaft is symmetrically fixedly connected to the two side walls of the powder box.

[0009] In a preferred embodiment of this utility model, the limiting rod is a rod with a triangular cross-section, and the horizontal height of the limiting rod is higher than that of the pressure block. The insertion shaft is cylindrical and can be inserted into the side wall of the pressure block on each side. The servo motor can drive the insertion shaft at the corresponding side wall position to rotate.

[0010] In a preferred embodiment of this utility model, the powder box is provided with a material guiding structure inside the cavity. The material guiding structure includes a material distributing rod and a material spreading rod. The material distributing rod is fixedly connected to the inner wall of the powder box cavity, and the material spreading rod is also fixedly connected to the inner wall of the powder box cavity.

[0011] In a preferred embodiment of this utility model, the distributing rod is located on the front wall of the powder box cavity, the spreading rod and the distributing rod are located on the same wall, the distributing rod is an arc-shaped rod, the position of the distributing rod is located at the bottom of the front through groove, the spreading rod is symmetrically arranged on both sides of the bottom of the distributing rod, and the spreading rod is a rod with a right-angled triangular cross section.

[0012] Compared with the prior art, the present invention has the following advantages: 1. By setting up a weighing structure, a rotatable powder box is used for weighing and discharging. When the powder is discharged to the top of the powder box, the small height difference, combined with the shielding plate, can effectively solve the problem of powder flying up.

[0013] 2. By setting up a material guiding structure, the powder is guided by the material distribution rod and the material spreading rod to evenly accumulate in the powder filling box cavity, thereby improving the accuracy of powder weighing.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a perspective view of the present utility model; Figure 2 This is a disassembly diagram of the bracket and frame of this utility model; Figure 3 This is an exploded view of the powder box and bracket of this utility model; Figure 4 This is a perspective view of the powder container of this utility model; Figure 5 This is a cross-sectional view of the powder box of this utility model.

[0016] In the diagram: 20, frame; 21, conveyor belt; 22, material box; 30, support; 31, weighing device; 32, limit bar; 33, baffle plate; 34, pressing block; 35, servo motor; 36, powder box; 37, insert shaft; 38, through groove; 40, material distribution bar; 41, material spreading bar. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0018] like Figure 1 and Figure 2 As shown, a powder weighing and conveying device includes: a frame 20, a rectangular groove on the top of the frame 20, a rotating roller symmetrically connected to the rectangular groove, a conveyor belt 21 sleeved on the outer wall of the rotating roller, a motor for driving the rotating roller to rotate installed on the wall of the frame 20, and a loading box 22 fixedly connected to the outer wall of the conveyor belt 21. The loading box 22 is a rectangular box with an open top and is made of rubber. The motor and the power supply are electrically connected. This is existing technology and will not be described in detail here.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a weighing structure is installed on the top of the frame 20 for weighing powder. The weighing structure includes: a support 30, a weighing device 31, a pressure block 34, a baffle 33, a powder box 36, and a through groove 38. The supports 30 are symmetrically and fixedly connected to the top of the frame 20. The weighing device 31 is fixedly connected to the wall of each support 30. The pressure block 34 is fixedly connected to the top of each weighing device 31. The baffle 33 is fixedly connected to the rear wall of the symmetrical supports 30. The powder box 36 is movably arranged between the symmetrical supports 30. The through groove 38 is opened through the top of the powder box 36. The cavity of the powder box 36 can hold the powder to be weighed.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the support 30 is a plate with a concave cross-section. The weighing device 31 is located inside the opening of the support 30, and the pressure block 34 is also located inside the opening of the support 30. The cover plate 33 is an arc-shaped plate. The powder box 36 is a hollow box with a capsule-shaped cross-section. The through slots 38 are symmetrically opened on the arc surface of the top of the powder box 36. The arc surface of the top of the powder box 36 can contact the arc surface of the bottom of the cover plate 33. The weighing structure also includes a limiting rod 32, a servo motor 35, and a shaft 37. The limiting rod 32 is fixedly connected to the front wall of the symmetrical support 30, and the servo motor 35 is fixedly connected to the side wall of the pressure block 34 on one side. The insert shaft 37 is symmetrically fixedly connected to the two side walls of the powder box 36. The limiting rod 32 is a rod with a triangular cross section. The horizontal height of the limiting rod 32 is higher than that of the pressure block 34. The insert shaft 37 is cylindrical and can be inserted into the side wall of the pressure block 34 on each side. The servo motor 35 can drive the insert shaft 37 at the corresponding side wall position to rotate. The powder box 36 is provided with a material guiding structure inside the cavity. The material guiding structure includes a material distributing rod 40 and a material spreading rod 41. The material distributing rod 40 is fixedly connected to the inner wall of the powder box 36, and the material spreading rod 41 is also fixedly connected to the inner wall of the powder box 36. In practical use, the powder to be weighed is first added into the powder box 36 cavity through the open channel 38. As the powder is added, it moves along the top arc surface of the distributing rod 40 to the top of the spreading rods 41 on both sides, gradually accumulating within the powder box 36 cavity. The weight of the powder box 36 gradually increases. As the weight of the powder box 36 increases, the weighing device 31 measures the weight of the powder in the powder box 36 cavity through the pressure block 34. After weighing the required weight of powder, the addition of powder is stopped, and then the power to the servo motor 35 is turned on. The servo motor 35 will drive the plug when the power is turned on. When shaft 37 rotates, it drives powder box 36 to rotate between symmetrical pressure blocks 34. When powder box 36 rotates backward, it will contact the inner arc surface of baffle 33. Then, the powder in the cavity of powder box 36 will be discharged from another channel 38 to the top cavity of material box 22. As material box 22 slowly moves backward, the powder discharged from powder box 36 will be spread flat on the top of material box 22. When powder box 36 discharges powder, the lower wall of powder box 36 is in contact with the highest point of the top of material box 22. After the powder is discharged, control powder box 36 to return to its original position and then weigh the next batch. In summary, by setting up a weighing structure and using a rotatable powder box 36 for weighing and discharging, and by using a small height difference in conjunction with the shielding plate 33 when discharging the powder to the top of the powder box 22, the problem of powder scattering can be effectively solved.

[0021] like Figure 5As shown, the material distribution rod 40 is located on the front wall of the powder box 36 cavity, the material spreading rod 41 and the material distribution rod 40 are located on the same wall, the material distribution rod 40 is an arc-shaped rod, the material distribution rod 40 is located at the bottom of the front through groove 38, the material spreading rod 41 is symmetrically arranged on both sides of the bottom of the material distribution rod 40, and the material spreading rod 41 is a rod with a right-angled triangular cross section. In actual use, when powder is added to the powder box 36, the powder will move along the top arc surface of the distributing rod 40 to the top of the spreading rods 41 on both sides, and then gradually accumulate in the powder box 36. In summary, by setting up a material guiding structure, the powder entering the powder box 36 is evenly piled up in the powder box 36 by guiding the powder through the material distribution rod 40 and the material spreading rod 41, thereby improving the accuracy of powder weighing.

[0022] Working principle: First, the powder to be weighed is added into the powder box 36 cavity through the open channel 38. When the powder is added into the powder box 36 cavity, the powder will move along the top arc surface of the distributing rod 40 to the top of the spreading rods 41 on both sides, and then gradually accumulate in the powder box 36 cavity, and the weight of the powder box 36 will gradually increase. As the weight of the powder box 36 increases, the weighing device 31 will measure the weight of the powder in the powder box 36 cavity through the pressure block 34. After weighing the required weight of powder, the addition stops. Powder is added, and then the power of the servo motor 35 is turned on. When the power is turned on, the servo motor 35 will drive the insertion shaft 37 to rotate. When the insertion shaft 37 rotates, it will drive the powder box 36 to rotate between the symmetrical pressure blocks 34. When the powder box 36 rotates backward, it will contact the inner arc surface of the baffle 33. Then the powder in the cavity of the powder box 36 will be discharged from another channel 38 to the top cavity of the material box 22. As the material box 22 slowly moves backward, the powder discharged from the powder box 36 will be spread evenly on the top of the material box 22.

[0023] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A powder weighing and conveying device, characterized in that, include: The frame (20) has a rectangular groove on its top. A rotating roller is symmetrically connected in the rectangular groove. A conveyor belt (21) is sleeved on the outer wall of the rotating roller. A motor that drives the rotating roller is installed on the wall of the frame (20). A loading box (22) is fixedly connected to the outer wall of the conveyor belt (21). The loading box (22) is a rectangular box with an open top. The weighing structure is set on the top of the frame (20) for weighing powder. The weighing structure includes: a support (30), a weighing device (31), a pressure block (34), a shield (33), a powder box (36), and a through groove (38). The support (30) is symmetrically fixedly connected to the top of the frame (20). The weighing device (31) is fixedly connected to the wall of each support (30). The pressure block (34) is fixedly connected to the top of each weighing device (31). The shield (33) is fixedly connected to the rear wall of the symmetrical support (30). The powder box (36) is movably set between the symmetrical support (30). The through groove (38) is opened through the top of the powder box (36). The cavity of the powder box (36) can be filled with the powder to be weighed.

2. The powder weighing and conveying device according to claim 1, characterized in that, The support (30) is a plate with a concave cross section. The weighing device (31) is located inside the opening of the support (30). The pressure block (34) is also located inside the opening of the support (30). The cover plate (33) is an arc-shaped plate.

3. The powder weighing and conveying device according to claim 1, characterized in that, The powder box (36) is a hollow box with a capsule-shaped cross-section. The through groove (38) is symmetrically opened on the arc surface of the top of the powder box (36). The arc surface of the top of the powder box (36) can contact the bottom arc surface of the cover plate (33).

4. The powder weighing and conveying device according to claim 1, characterized in that, The weighing structure also includes a limiting rod (32), a servo motor (35), and a plug shaft (37). The limiting rod (32) is fixedly connected to the front wall of the symmetrical support (30), the servo motor (35) is fixedly connected to the side wall of the pressure block (34) on one side, and the plug shaft (37) is symmetrically fixedly connected to the two side walls of the powder box (36).

5. A powder weighing and conveying device according to claim 4, characterized in that, The limiting rod (32) is a rod with a triangular cross section. The horizontal height of the limiting rod (32) is higher than that of the pressure block (34). The insertion shaft (37) is cylindrical and can be inserted into the side wall of the pressure block (34) on each side. The servo motor (35) can drive the insertion shaft (37) at the corresponding side wall position to rotate.

6. The powder weighing and conveying device according to claim 1, characterized in that, The powder box (36) is provided with a material guiding structure inside its cavity. The material guiding structure includes a material distributing rod (40) and a material spreading rod (41). The material distributing rod (40) is fixedly connected to the inner wall of the powder box (36), and the material spreading rod (41) is also fixedly connected to the inner wall of the powder box (36).

7. A powder weighing and conveying device according to claim 6, characterized in that, The material distribution rod (40) is located on the front wall of the powder box (36) cavity. The material spreading rod (41) and the material distribution rod (40) are located on the same wall. The material distribution rod (40) is an arc-shaped rod. The material distribution rod (40) is located at the bottom of the front through groove (38). The material spreading rod (41) is symmetrically arranged on both sides of the bottom of the material distribution rod (40). The material spreading rod (41) is a rod with a right-angled triangular cross section.

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