Quantitative weighing device for powdery materials

Abstract

The utility model relates to the technical field of weighing devices, and provides a powdery material quantitative weighing device which comprises a base arranged on the ground in parallel, the base is of an L-shaped structure, and the base can be fixed to charging barrels at different positions in the height direction of the base through a lifting mechanism arranged on the vertical section of the base. The first motor drives the bidirectional screw rod to rotate and drives the two sliding blocks to slide and get close to each other in the groove, so that the two arc-shaped positioning blocks are driven to get close to each other to be in contact and fixed with the weighing cylinder, and therefore the effect that the weighing cylinder is centered and positioned is achieved, and the weighing cylinder and the charging barrel can be aligned conveniently; the situation that powder cannot accurately fall into the weighing cylinder due to the fact that the weighing cylinder is not placed in the middle is prevented, and the stability and the effect of powder weighing are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing devices, in particular to a quantitative weighing device for powdered materials. Background Art

[0002] Weighing equipment usually refers to the weight measuring equipment used for large objects in industry or trade. It refers to the use of modern electronic technologies such as program control, group control, teleprinting records, screen display, etc., which will make the weighing equipment more functional and efficient.

[0003] The known patent with application number: CN202020652683.X discloses a quantitative weighing device for loading powdery materials, including a base, a fixed block, a protective shell and a vertical plate are fixedly connected to the top of the base, the fixed block is arranged inside the protective shell, a weight sensor is fixedly connected to the top of the fixed block, a weighing plate is placed on the weight sensor, a horizontal plate and a hydraulic cylinder are fixedly installed on the vertical plate, a silo is fixedly installed on the horizontal plate, a motor is fixedly installed at the top center of the silo, the silo is fixedly connected to the protective shell, the bottom of the silo extends into the interior of the protective shell and is fixedly connected with a protective cover, a limiting groove and a through hole are provided at the bottom of the silo, one end of a telescopic hydraulic rod is fixedly connected to the hydraulic cylinder, the other end of the telescopic hydraulic rod passes through the interior of the protective shell and is fixedly connected with one end of a baffle, and the other end of the baffle extends into the interior of the limiting groove through the through hole. The utility model can thoroughly clean the device, has a simple structure, a reasonable design, can reduce labor costs, and improve weighing efficiency.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: when in use, it is not convenient to center and fix the weighing plate; the weighing plate is directly placed by personnel, and the weighing plate cannot be center-fixed, which easily causes the weighing plate and the center of the silo to shift, resulting in uneven distribution of falling materials or even waste, and it is inconvenient to collect and recycle the scattered materials, thereby reducing the stability and effect of material weighing. Utility Model Content

[0005] The utility model provides a quantitative weighing device for powdered materials, which solves the problem in the related art that it is inconvenient to center and fix a weighing plate and to recover the scattered materials.

[0006] The technical solution of the utility model is as follows: A quantitative weighing device for powdered materials, comprising: a base arranged parallel to the ground, the base being an L-shaped structure;

[0007] The barrels at different positions in the height direction of the base can be fixed by a lifting mechanism arranged on the vertical section of the base;

[0008] A material blocking mechanism is provided at the bottom of the barrel and can open or close the material discharge of the barrel;

[0009] A protective shell disposed below the material blocking mechanism and connected to the material blocking mechanism;

[0010] An air suction hood is arranged in the protective shell, and the barrel is provided with a recovery mechanism which enables the air suction hood to absorb the scattered materials in the protective shell after weighing;

[0011] A scale body disposed on the horizontal end of the base and movable along the length direction of the base;

[0012] And two arc-shaped positioning blocks are symmetrically arranged on the scale body, and the two arc-shaped positioning blocks can move relatively along the length direction of the scale body through an adjusting mechanism arranged on the scale body.

[0013] Preferably, the recovery mechanism includes a pump body fixedly mounted on one side of the barrel surface through a base block, the input end of the pump body is connected to the suction hood through a pipe 1 passing through a protective shell, and the output end of the pump body is connected to the barrel through a pipe 2.

[0014] Preferably, the adjustment mechanism includes a positioning plate fixedly mounted on the top of the scale body, a groove opened on the top of the positioning plate, a bidirectional screw rotatably connected between the two sides of the inner wall of the groove, two sliders symmetrically threadedly connected to the surface of the bidirectional screw and sliding with the groove, and a motor 1 fixedly mounted on one side of the positioning plate, the output end of the motor 1 penetrates into the groove and is connected to the bidirectional screw, and the two arc-shaped positioning blocks are respectively fixedly mounted on the opposite surfaces of the two sliders.

[0015] Preferably, both sides of the inner wall of the horizontal section of the base are provided with sliding grooves, a movable plate is slidably connected in the sliding groove, and the scale body is fixedly installed on the top of the movable plate.

[0016] Preferably, the material blocking mechanism includes a material discharge block fixedly installed at the bottom of the barrel, a slot opened on one side of the material discharge block, a material blocking block slidably connected in the slot, and a cylinder fixedly installed on the other side of the barrel surface through a bracket, the output end of the cylinder is connected to the material blocking block, and the protective shell is fixedly installed at the bottom of the material discharge block.

[0017] Preferably, a stirring mechanism is provided in the barrel, and the stirring mechanism includes a rotating rod rotatably connected to the top wall of the barrel, a spiral blade fixedly mounted on the bottom end surface of the rotating rod, a second motor fixedly mounted on the top of the barrel, two stirring rods symmetrically fixedly mounted on the surface of the rotating rod, and a scraper fixedly connected to one end of the stirring rod and in contact with the inner wall of the barrel, and the output end of the second motor passes through the barrel and is connected to the rotating rod.

[0018] Preferably, the lifting mechanism comprises an electric slide fixedly mounted on a side of the vertical section of the base, and the barrel is fixedly mounted on an output end of the electric slide.

[0019] The working principle and beneficial effects of the utility model are:

[0020] 1. When in use, move the scale body away from the barrel, then place the weighing barrel on the scale body, and move the scale body to the bottom of the barrel. At the same time, the motor drives the bidirectional screw to rotate, driving the two sliders to slide close to each other in the groove, thereby driving the two arc-shaped positioning blocks to approach each other and contact and fix with the weighing barrel. Therefore, the weighing barrel is placed in the center, which is convenient for aligning the weighing barrel and the barrel, and preventing the weighing barrel from being placed out of the center, causing the powder to fail to fall accurately into the weighing barrel, effectively improving the stability and effect of powder weighing.

[0021] 2. After weighing is completed, negative pressure is formed in the suction hood through the pump body, which is convenient for sucking the powder scattered in the protective shell into the barrel, so as to achieve the effect of powder recovery, prevent the powder from scattering and overflowing to affect the working environment and waste, and effectively improve the resource conservation and sustainability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the barrel of the utility model;

[0025] Figure 3 It is a schematic diagram of the partial three-dimensional structure of the scale body of the utility model;

[0026] Figure 4 For this utility model Figure 2 A in the figure is an enlarged schematic diagram of the three-dimensional structure;

[0027] In the figure: 1. base; 2. barrel; 3. protective shell; 4. suction hood; 5. scale body; 6. positioning plate; 7. arc positioning block; 8. pump body; 9. bidirectional screw; 10. slider; 11. motor 1; 12. moving plate; 13. unloading block; 14. blocking block; 15. cylinder; 16. rotating rod; 17. spiral blade; 18. motor 2; 19. stirring rod; 20. scraper; 21. electric slide. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1

[0030] See also Figure 1 - Figure 4 The utility model provides a quantitative weighing device for powdered materials, comprising a base 1 arranged parallel to the ground, and the base 1 is an L-shaped structure;

[0031] The barrel 2 at different positions in the height direction of the base 1 can be fixed by a lifting mechanism arranged on the vertical section of the base 1;

[0032] A material blocking mechanism provided at the bottom of the barrel 2 that can open or close the material discharge of the barrel 2;

[0033] A protective shell 3 disposed below the material blocking mechanism and connected to the material blocking mechanism;

[0034] The suction hood 4 is arranged in the protective shell 3, and the barrel 2 is provided with a recovery mechanism which enables the suction hood 4 to absorb the scattered materials in the protective shell 3 after weighing;

[0035] A scale body 5 is disposed on the horizontal end of the base 1 and is movable along the length direction of the base 1;

[0036] And two arc-shaped positioning blocks 7 are symmetrically arranged on the scale body 5 , and the two arc-shaped positioning blocks 7 can move relatively along the length direction of the scale body 5 through an adjustment mechanism arranged on the scale body 5 .

[0037] The technical solution provided by this embodiment is as follows: when in use, the scale body 5 is moved away from the barrel 2, and then the weighing barrel is placed on the scale body 5, and the scale body 5 is moved to the bottom of the barrel 2, and at the same time, the two arc-shaped positioning blocks 7 are driven to approach each other through the adjustment mechanism, so that the arc-shaped positioning blocks 7 are in contact with the weighing barrel and fixed, thereby achieving the effect of centering the weighing barrel, facilitating the alignment of the weighing barrel and the barrel 2, and preventing the weighing barrel from being placed out of the center, causing the powder to fail to accurately fall into the weighing barrel, and then the lifting mechanism drives the material to move. The barrel 2 moves downward, so that the protective shell 3 covers the outside of the weighing barrel to prevent the powder from scattering and polluting the working environment. At the same time, the barrel 2 is opened by the blocking mechanism to allow the powder to fall into the weighing barrel and reach the purpose of quantitative weighing of the powder through the scale body 5. After reaching the set weight, the blocking mechanism closes the barrel 2, and then the recovery mechanism makes the suction hood 4 absorb the powder scattered in the protective shell 3 and transport it to the barrel 2, so as to achieve the effect of powder recovery, prevent the waste caused by the scattering of powder, and effectively improve the stability and effect of powder weighing as well as resource conservation.

[0038] Furthermore, the recovery mechanism includes a pump body 8 fixedly mounted on one side of the surface of the barrel 2 through a base block, the input end of the pump body 8 is connected to the suction hood 4 through a pipe 1 passing through the protective shell 3, and the output end of the pump body 8 is connected to the barrel 2 through a pipe 2.

[0039] Specifically, after weighing, negative pressure is formed in the suction hood 4 through the pump body 8, which facilitates the suction and collection of powder scattered in the protective shell 3 and conveys it to the barrel 2 for recycling, preventing the powder from scattering and overflowing to affect the working environment and cause waste, thereby effectively improving resource conservation and sustainability.

[0040] Furthermore, the adjustment mechanism includes a positioning plate 6 fixedly mounted on the top of the scale body 5, a groove opened on the top of the positioning plate 6, a bidirectional screw 9 rotatably connected between the two sides of the inner wall of the groove, two sliders 10 symmetrically threadedly connected to the surface of the bidirectional screw 9 and sliding with the groove, and a motor 11 fixedly mounted on one side of the positioning plate 6, the output end of the motor 11 penetrates into the groove and is connected to the bidirectional screw 9, and two arc-shaped positioning blocks 7 are respectively fixedly mounted on the opposite surfaces of the two sliders 10.

[0041] Specifically, after the weighing cylinder is placed on the positioning plate 6, the bidirectional screw 9 is driven to rotate by the motor 11, driving the two sliders 10 to slide close to each other in the groove, thereby driving the two arc-shaped positioning blocks 7 to approach each other and contact and fix with the weighing cylinder, achieving the effect of centering and fixing the symmetrical measuring cylinder, facilitating the alignment and fixation of the weighing cylinder and the material barrel 2, preventing the weighing cylinder from being offset and not centered, resulting in the inability to accurately receive and weigh the material, reducing the waste of powder, and effectively improving the stability of powder weighing.

[0042] Furthermore, both sides of the inner wall of the horizontal section of the base 1 are provided with slide grooves, a moving plate 12 is slidably connected in the slide groove, and the scale body 5 is fixedly installed on the top of the moving plate 12.

[0043] Specifically, by moving the movable plate 12, the scale body 5 and the weighing cylinder are driven to move and separate from the material cylinder 2, so that it is convenient for personnel to take the powder measuring cylinder after weighing, and vice versa to weigh.

[0044] Furthermore, the material blocking mechanism includes a material discharge block 13 fixedly installed at the bottom of the barrel 2, a slot opened on one side of the material discharge block 13, a material blocking block 14 slidably connected in the slot, and a cylinder 15 fixedly installed on the other side of the surface of the barrel 2 through a bracket, the output end of the cylinder 15 is connected to the material blocking block 14, and the protective shell 3 is fixedly installed at the bottom of the material discharge block 13.

[0045] Specifically, when discharging and weighing, the cylinder 15 drives the blocking block 14 to separate from the card slot, so that the barrel 2 opens to discharge the material. When the scale body 5 weighs the set weight of the powder, the cylinder 15 drives the blocking block 14 to reset and block the barrel 2, thereby achieving the purpose of quantitative weighing.

[0046] Furthermore, the lifting mechanism includes an electric slide 21 fixedly mounted on a side of the vertical section of the base 1 , and the barrel 2 is fixedly mounted on an output end of the electric slide 21 .

[0047] Specifically, by providing the electric slide 21, the barrel 2 can be driven to move downward when weighing the powder, so that the protective shell 3 can cover the weighing barrel to prevent the powder from scattering, and it is also convenient to receive materials for weighing barrels at different heights.

[0048] Embodiment 2

[0049] Based on Example 1, in this embodiment: a stirring mechanism is provided in the barrel 2, the stirring mechanism includes a rotating rod 16 rotatably connected to the inner top wall of the barrel 2, a spiral blade 17 fixedly mounted on the bottom end surface of the rotating rod 16, a motor 2 18 fixedly mounted on the top of the barrel 2, two stirring rods 19 symmetrically fixedly mounted on the surface of the rotating rod 16, and a scraper 20 fixedly connected to one end of the stirring rod 19 and in contact with the inner wall of the barrel 2, and the output end of the motor 2 18 passes through the barrel 2 and is connected to the rotating rod 16.

[0050] The technical solution provided by this embodiment is: when the barrel 2 is discharging material, the motor 18 drives the rotating rod 16 to rotate, and drives the spiral blade 17 at its bottom end to rotate, so that the spiral blade 17 drives the powder to move downward and discharge, thereby preventing the powder from being blocked. At the same time, the powder is stirred by the stirring rod 19 to avoid agglomeration, and the scraper 20 is used to scrape off the powder attached to the inner wall of the barrel 2.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quantitative weighing device for powdered materials, characterized in that: include: A base (1) arranged parallel to the ground, wherein the base (1) is an L-shaped structure; A material barrel (2) can be fixed at different positions in the height direction of the base (1) by a lifting mechanism arranged on the vertical section of the base (1); A material blocking mechanism is arranged at the bottom of the barrel (2) and can open or close the material discharge of the barrel (2); A protective shell (3) disposed below the material blocking mechanism and connected to the material blocking mechanism; An air suction hood (4) is arranged in the protective shell (3), and the barrel (2) is provided with a recovery mechanism which enables the air suction hood (4) to absorb the scattered materials in the protective shell (3) after weighing; A scale body (5) is arranged on the horizontal end of the base (1) and is movable along the length direction of the base (1); And two arc-shaped positioning blocks (7) are symmetrically arranged on the scale body (5), and the two arc-shaped positioning blocks (7) can move relatively along the length direction of the scale body (5) through an adjustment mechanism arranged on the scale body (5).

2. A powder material quantitative weighing device according to claim 1, characterized in that: The recovery mechanism comprises a pump body (8) fixedly mounted on one side of the surface of the barrel (2) through a base block, the input end of the pump body (8) passing through a protective shell (3) and connected to an air suction hood (4) through a first pipeline, and the output end of the pump body (8) is connected to the barrel (2) through a second pipeline.

3. A powder material quantitative weighing device according to claim 1, characterized in that: The adjustment mechanism comprises a positioning plate (6) fixedly mounted on the top of the scale body (5), a groove provided on the top of the positioning plate (6), a bidirectional screw (9) rotatably connected between the two sides of the inner wall of the groove, two sliders (10) symmetrically threadedly connected to the surface of the bidirectional screw (9) and sliding with the groove, and a motor (11) fixedly mounted on one side of the positioning plate (6), the output end of the motor (11) penetrates into the groove and is connected to the bidirectional screw (9), and the two arc-shaped positioning blocks (7) are respectively fixedly mounted on the opposite surfaces of the two sliders (10).

4. A powder material quantitative weighing device according to claim 1, characterized in that: Slide grooves are provided on both sides of the inner wall of the horizontal section of the base (1), a movable plate (12) is slidably connected in the slide groove, and the scale body (5) is fixedly installed on the top of the movable plate (12).

5. A quantitative weighing device for powdered materials according to claim 1, characterized in that: The material blocking mechanism comprises a material discharge block (13) fixedly mounted at the bottom of the material barrel (2), a slot provided on one side of the material discharge block (13), a material blocking block (14) slidably connected in the slot, and a cylinder (15) fixedly mounted on the other side of the surface of the material barrel (2) via a bracket, wherein the output end of the cylinder (15) is connected to the material blocking block (14), and the protective shell (3) is fixedly mounted at the bottom of the material discharge block (13).

6. A quantitative weighing device for powdered materials according to claim 1, characterized in that: The barrel (2) is provided with a stirring mechanism, which comprises a rotating rod (16) rotatably connected to the inner top wall of the barrel (2), a spiral blade (17) fixedly mounted on the bottom surface of the rotating rod (16), a second motor (18) fixedly mounted on the top of the barrel (2), two stirring rods (19) symmetrically fixedly mounted on the surface of the rotating rod (16), and a scraper (20) fixedly connected to one end of the stirring rod (19) and in contact with the inner wall of the barrel (2), and the output end of the second motor (18) passes through the barrel (2) and is connected to the rotating rod (16).

7. A quantitative weighing device for powdered materials according to claim 1, characterized in that: The lifting mechanism comprises an electric slide (21) fixedly mounted on a side of a vertical section of the base (1), and the barrel (2) is fixedly mounted on an output end of the electric slide (21).

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