High-precision powder feeding device

Abstract

The utility model is suitable for the technical field of feeding machines, and provides a high-precision powder feeding device. A feeding tank; the rotating rod is movably mounted in the middle of the feeding tank; the spiral blade is fixedly mounted on the surface of the rotating rod; the scraping plates are arranged on the outer side of the spiral blade in a circumferential array manner; the air heating structure is arranged on the rotating rod and the feeding tank and is used for heating the interior of the feeding tank; and the on-off valve is fixedly mounted at the bottom of the feeding tank. Compared with the prior art, the powder stirring device has the beneficial effects that when the powder stirring device is used, the internal circulation air heating structure is arranged, so that the powder is heated while being stirred, moisture in the powder is discharged, and then the generated moisture is filtered and discharged, so that the material becomes dry; therefore, the situation that the materials adhere to each other and are adsorbed is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of feeders, and in particular relates to a high-precision powder feeding device. Background Art

[0002] A feeder, also known as a feeder, is an automated mechanical device used in industrial production. It can automatically feed materials into other mechanical equipment, such as mixers, crushers, packaging machines, etc., to accurately measure and transport materials.

[0003] However, due to the low density of the powder, it is easy to compress and has strong adhesion, which leads to the easy adhesion to the inner wall of the feeder during feeding, and then causes blockage, retention, and agglomeration. In the prior art, a stirring rod is often used to scrape the material on the inner wall. However, since the problem of strong adhesion when the powder has too much water is not solved, the powder will stick to the stirring rod instead, and the problem is not substantially solved.

[0004] Therefore, how to provide a high-precision powder feeding device is a problem that those skilled in the art urgently need to solve. Utility Model Content

[0005] The purpose of the utility model is to provide a high-precision powder feeding device, aiming to solve the problems mentioned in the background technology.

[0006] The utility model is implemented as follows: a high-precision powder feeding device comprises:

[0007] Drop tanks;

[0008] A rotating rod movably mounted in the middle of the delivery tank;

[0009] A spiral blade, wherein the spiral blade is fixedly mounted on the surface of the rotating rod;

[0010] scrapers, wherein the scrapers are arranged in a circular array on the outside of the spiral blade;

[0011] An air heating structure is provided on the rotating rod and the delivery tank to heat the interior of the delivery tank;

[0012] The on-off valve is fixedly installed at the bottom of the delivery tank.

[0013] Preferably, a delivery port is fixedly installed on the left side of the delivery tank, a sealing plate is movably hinged on the top of the delivery port, and a closing structure is fixedly installed on the top of the left end of the delivery tank;

[0014] The closing structure includes a supporting frame, a displacement screw, a slider and a limiting unit. The supporting frame is fixedly installed on the top of the left side of the delivery tank, the displacement screw is movably installed in the middle of the supporting frame, the slider is movably installed on the surface of the displacement screw, the top of the slider is movably hinged with a hinge rod, the top of the hinge rod is movably hinged to the top of the sealing plate, and the limiting unit is arranged at the top of the left side of the supporting frame and is movably engaged with the hinge rod.

[0015] Preferably, the air heating structure includes a sleeve and a hot air blower, the hot air blower is fixedly mounted on the top of the rear side of the delivery tank, and a blowing pipe and an air suction pipe are symmetrically arranged on the left and right sides of the hot air blower, the sleeve is movably sleeved on the upper end of the rotating rod and fixedly connected to the top of the delivery tank, a symmetrical annular air groove is provided inside the sleeve, an exhaust pipe and an exhaust pipe are symmetrically installed on the top of the annular air groove, the upper and lower sides of the exhaust pipe are respectively connected to the blowing pipe and the left annular air groove, and the upper and lower sides of the exhaust pipe are respectively connected to the suction pipe and the right annular air groove, an air delivery groove is provided in a circular array inside the rotating rod, and is connected to the annular air groove, a heating groove is provided in the middle of the spiral blade, and is connected to the air delivery groove, and a dehumidification unit is provided at the right end of the top of the delivery tank.

[0016] Preferably, the limiting unit includes a hook and a slot, the hook is movably plugged into the top of the left side of the support frame, the slot is opened at the bottom of the sealing plate, and a spring is provided at the bottom of the hook.

[0017] Preferably, the width of the top of the hook is smaller than the width of the left side of the slot, and the height of the hook is greater than the height of the slot.

[0018] Preferably, the elasticity of the spring is smaller than the pressure value of the sealing plate, and the hook is arranged within the rotation range of the slot.

[0019] Preferably, the dehumidification unit includes an air outlet pipe, the air outlet pipe is fixedly installed on the right side of the delivery tank, a filter through hole is provided between the air outlet pipe and the delivery tank, and a hair dryer is fixedly installed on the top of the air outlet pipe.

[0020] Compared with the prior art, the beneficial effect of the present invention is that: when in use, by setting an internal circulation air heating structure, the powder is heated at the same time when it is stirred, so that the moisture in the powder is discharged, and then the generated moisture is filtered and discharged, making the material dry, thereby avoiding the occurrence of mutual adhesion and adsorption of the materials.

[0021] At the same time, by setting a closing structure on the delivery port, it can automatically open when delivering and automatically close when stirring, thereby avoiding the discharge of materials and reducing dust leakage. At the same time, a limit unit is set to prevent the closing structure from being accidentally opened by people when working, causing material leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 A schematic diagram of the overall appearance and structure of a high-precision powder feeding device provided by an embodiment of the utility model;

[0024] Figure 2 A schematic top view of a high-precision powder feeding device provided by an embodiment of the present utility model;

[0025] Figure 3 A schematic diagram of the main cross-sectional structure of a high-precision powder feeding device provided by an embodiment of the present utility model;

[0026] Figure 4 The embodiment of the present utility model provides Figure 2 A schematic diagram of the enlarged structure of part A;

[0027] Figure 5 The embodiment of the present utility model provides Figure 2 A schematic diagram of the enlarged structure of part B;

[0028] Figure 6 The embodiment of the present utility model provides Figure 2 Schematic diagram of the enlarged structure of part C.

[0029] In the figure: 1-dispensing tank, 2-rotating rod, 3-sleeve, 4-annular air groove, 5-exhaust pipe, 6-exhaust pipe, 7-suction pipe, 8-blowing pipe, 9-hot air blower, 10-spiral blade, 11-air transmission groove, 12-heating groove, 13-scraper, 14-filter through hole, 15-air outlet pipe, 16-blower, 17-on-off valve, 18-support frame, 19-displacement screw, 20-slider, 21 hinged rod, 22-sealing plate, 23-dispensing port, 24-spring, 25-hook, 26-slot. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0032] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 FIG. 1 is a schematic structural diagram of a high-precision powder feeding device provided by an embodiment of the present invention, comprising:

[0033] Drop tank 1;

[0034] The rotating rod 2 is movably mounted in the middle of the delivery tank 1;

[0035] The spiral blade 10 is fixedly mounted on the surface of the rotating rod 2;

[0036] The scraper 13 is arranged in a circular array on the outside of the spiral blade 10;

[0037] An air heating structure is provided on the rotating rod 2 and the delivery tank 1 to heat the interior of the delivery tank 1;

[0038] The on-off valve 17 is fixedly installed at the bottom of the delivery tank 1.

[0039] In the embodiment of the present invention, when in use, the rotating rod 2 is started, thereby driving the spiral blade 10 to rotate, transporting the powder upward, and at the same time driving the scraper 13 to rotate, hanging the powder on the inner wall of the feeding tank 1, and heating it through the air heating structure, thereby precipitating the internal moisture to avoid adhesion;

[0040] By setting up an internal circulation air heating structure, the powder is heated at the same time when it is stirred, so that the moisture in the powder is precipitated, and then the generated moisture is filtered and discharged, making the material dry, thereby avoiding the occurrence of mutual adhesion and adsorption of materials.

[0041] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, as a preferred embodiment of the present invention, a delivery port 23 is fixedly installed on the left side of the delivery tank 1, a sealing plate 22 is movably hinged on the top of the delivery port 23, and a closing structure is fixedly installed on the top of the left end of the delivery tank 1;

[0042] The closing structure includes a support frame 18, a displacement screw 19, a slider 20 and a limit unit. The support frame 18 is fixedly installed on the top of the left side of the launch tank 1, the displacement screw 19 is movably installed in the middle of the support frame 18, and the slider 20 is movably installed on the surface of the displacement screw 19. The top of the slider 20 is movably hinged with a hinge rod 21, and the top of the hinge rod 21 is movably hinged to the top of the sealing plate 22. The limit unit is arranged at the top of the left side of the support frame 18 and is movably engaged with the hinge rod 21.

[0043] In the embodiment of the present invention, when in use, the displacement screw 19 on the support frame 18 is activated, thereby causing the slider 20 to move to the right, which in turn drives the hinge rod 21 to move, causing the hook 25 to separate from the slot 26, and finally causing the sealing plate 22 to automatically separate from the feeding port 23, thereby facilitating the feeding of powder;

[0044] By setting a closed structure, it can automatically open and close when feeding, so as to facilitate the feeding of powder and avoid the discharge of materials.

[0045] like Figure 3 、 Figure 5 and Figure 6 As shown, as a preferred embodiment of the present invention, the air heating structure includes a sleeve 3 and a hot air blower 9, the hot air blower 9 is fixedly mounted on the top of the rear side of the delivery tank 1, and a blowing pipe 8 and an air suction pipe 7 are symmetrically arranged on the left and right sides of the hot air blower 9, the sleeve 3 is movably sleeved on the upper end of the rotating rod 2 and fixedly connected to the top of the delivery tank 1, a symmetrical annular air groove 4 is provided inside the sleeve 3, and an exhaust pipe 6 and an air extraction pipe 5 are symmetrically installed on the top of the annular air groove 4, the exhaust pipe 6 is respectively connected to the blowing pipe 8 and the left annular air groove 4 on the upper and lower sides, and the air extraction pipe 5 is respectively connected to the air suction pipe 7 and the right annular air groove 4 on the upper and lower sides, an air delivery groove 11 is provided in a circular array inside the rotating rod 2, and is connected to the annular air groove 4, a heating groove 12 is provided in the middle of the spiral blade 10, and is connected to the air delivery groove 11, and a dehumidification unit is provided at the right end of the top of the delivery tank 1.

[0046] In the embodiment of the present invention, when in use, the hot air blower 9 is started to heat the hot air, and then discharged into the exhaust pipe 6, and then enters the annular air groove 4 on the left side of the sleeve 3 through the blowing pipe 8, and then enters the air delivery groove 11, and finally discharged into the heating groove 12 inside the spiral blade 10, so that its temperature is increased, thereby vaporizing the moisture in the powder and rising to the top of the delivery tank 1, and then the dehumidification unit is started to discharge the moisture on the top of the delivery tank 1;

[0047] By setting up an air heating structure, the interior is heated at the same time as stirring, so that the powder can be dried and avoid adhesion, making it convenient and thorough to discharge.

[0048] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, as a preferred embodiment of the present invention, the limiting unit includes a hook 25 and a slot 26. The hook 25 is movably inserted into the top of the left side of the support frame 18, the slot 26 is opened at the bottom of the sealing plate 22, and a spring 24 is provided at the bottom of the hook 25.

[0049] In the embodiment of the present invention, when in use, the hook 25 first contacts the left side of the slot 26, and then under the pressure of the hinge rod 21, the hook 25 is lowered by the spring 24, and then the hook 25 penetrates into the slot 26 and engages with it;

[0050] By providing the limiting unit, the hinge rod 21 is prevented from opening accidentally.

[0051] like Figure 3 and Figure 4 As shown, as a preferred embodiment of the present invention, the width of the top of the hook 25 is smaller than the width of the left side of the slot 26 , and the height of the hook 25 is greater than the height of the slot 26 .

[0052] In the embodiment of the present utility model, when in use, the hook 25 will first enter the left side of the slot 26 and then engage with the slot 26;

[0053] By arranging the cooperation between the hook 25 and the slot 26 , it is convenient to constrain and fix the hinge rod 21 , thereby avoiding the situation of accidental opening.

[0054] like Figure 3 and Figure 4 As shown in FIG. 2 , as a preferred embodiment of the present invention, the elasticity of the spring 24 is smaller than the pressure value of the sealing plate 22 , and the hook 25 is arranged within the rotation range of the slot 26 .

[0055] In the embodiment of the utility model, when in use, the elasticity of the spring 24 is made smaller than the pressure value of the sealing plate 22, thereby facilitating the descent of the hook 25, and the hook 25 is set within the rotation range of the slot 26, thereby facilitating the engagement.

[0056] like Figure 1 、 Figure 2 、 Figure 3 and Figure 6As shown, as a preferred embodiment of the present invention, the dehumidification unit includes an air outlet pipe 15, which is fixedly installed on the right side of the delivery tank 1, a filter through hole 14 is provided between the air outlet pipe 15 and the delivery tank 1, and a hair dryer 16 is fixedly installed on the top of the air outlet pipe 15.

[0057] In the embodiment of the present invention, when in use, the blower 16 is started to blow air downward through the air outlet pipe 15, and the moisture on the top of the delivery tank 1 is filtered and extracted through the filter through hole 14 by using the Venturi principle;

[0058] By setting up a dehumidification unit, the moisture evaporated by internal heating can be discharged, thereby reducing residual moisture and facilitating drying.

[0059] The above embodiment of the present invention provides a high-precision powder feeding device. When in use, the displacement screw 19 on the support frame 18 is activated, thereby causing the slider 20 to move to the right, which in turn drives the hinge rod 21 to move, causing the hook 25 to separate from the slot 26, and finally causing the sealing plate 22 to automatically separate from the feeding port 23, thereby facilitating the feeding of powder.

[0060] Then, the displacement screw 19 reverses, causing the slider 20 to move to the left, which in turn drives the hinge rod 21 to move, causing the hook 25 to insert into the slot 26, forming a constraint, and finally causing the sealing plate 22 to automatically close with the feeding port 23, thereby facilitating stirring and reducing dust leakage;

[0061] As the rotating rod 2 in the middle of the delivery tank 1 is started, the spiral blade 10 rotates, thereby moving the powder at the bottom to the upper end, and driving the scraper 13 to move along the inner wall of the delivery tank 1, thereby scraping off the material on the inner wall;

[0062] Then, the hot air blower 9 is started to heat the hot air, and then discharged into the exhaust pipe 6, and then enters the annular air groove 4 on the left side of the sleeve 3 through the blowing pipe 8, and then enters the air delivery groove 11, and finally discharged into the heating groove 12 inside the spiral blade 10, so that its temperature is increased, thereby vaporizing the moisture in the powder and rising to the top of the delivery tank 1. Then, the blower 16 on the top of the air outlet pipe 15 is started to blow air downward, so that the moisture on the top of the delivery tank 1 is filtered and discharged through the filter through hole 14 by the Venturi principle, thereby preventing the powder from being accidentally discharged;

[0063] The air used by the heating tank 12 will pass through the annular air groove 4 on the right side, enter the exhaust pipe 5, and then enter the suction end of the hot air blower 9 through the suction pipe 7, thereby reducing the entry of outside air and reducing heat loss, thereby increasing the heating speed, implementing the internal circulation of air, and making the heating effect better;

[0064] The processed powder is then discharged to a designated place by opening the on-off valve 17.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-precision powder feeding device, characterized in that: include; Drop tank (1); A rotating rod (2), the rotating rod (2) being movably mounted in the middle of the delivery tank (1); A spiral blade (10), wherein the spiral blade (10) is fixedly mounted on the surface of the rotating rod (2); Scrapers (13), wherein the scrapers (13) are arranged in a circumferential array on the outside of the spiral blade (10); An air heating structure, the air heating structure being arranged on the rotating rod (2) and the delivery tank (1) to heat the interior of the delivery tank (1); An on-off valve (17) is fixedly mounted on the bottom of the delivery tank (1).

2. A high-precision powder feeding device according to claim 1, characterized in that: A delivery port (23) is fixedly installed on the left side of the delivery tank (1), a sealing plate (22) is movably hinged on the top of the delivery port (23), and a closing structure is fixedly installed on the top of the left end of the delivery tank (1); The closed structure comprises a support frame (18), a displacement screw (19), a slider (20) and a limiting unit. The support frame (18) is fixedly mounted on the top of the left side of the delivery tank (1). The displacement screw (19) is movably mounted on the middle of the support frame (18). The slider (20) is movably mounted on the surface of the displacement screw (19). The top of the slider (20) is movably hinged to a hinge rod (21). The top of the hinge rod (21) is movably hinged to the top of a sealing plate (22). The limiting unit is arranged on the top of the left side of the support frame (18) and is movably engaged with the hinge rod (21).

3. A high-precision powder feeding device according to claim 1, characterized in that: The air heating structure comprises a sleeve (3) and a hot air blower (9), wherein the hot air blower (9) is fixedly mounted on the top of the rear side of the delivery tank (1), and a blowing pipe (8) and an air suction pipe (7) are symmetrically arranged on the left and right sides of the hot air blower (9), and the sleeve (3) is movably sleeved on the upper end of the rotating rod (2) and fixedly connected to the top of the delivery tank (1), and a symmetrical annular air groove (4) is provided inside the sleeve (3), and an exhaust pipe (6) and an air suction pipe (7) are symmetrically arranged on the top of the annular air groove (4). The exhaust pipe (6) is connected to the blowing pipe (8) and the left annular air groove (4) on the upper and lower sides respectively; the exhaust pipe (5) is connected to the suction pipe (7) and the right annular air groove (4) on the upper and lower sides respectively; the rotating rod (2) is provided with an air delivery groove (11) in a circumferential array inside and is connected to the annular air groove (4); the spiral blade (10) is provided with a heating groove (12) in the middle and is connected to the air delivery groove (11); and a dehumidification unit is provided at the right end of the top of the delivery tank (1).

4. A high-precision powder feeding device according to claim 2, characterized in that: The limiting unit includes a hook (25) and a slot (26), wherein the hook (25) is movably plugged into the top of the left side of the support frame (18), and the slot (26) is opened at the bottom of the sealing plate (22), and a spring (24) is provided at the bottom of the hook (25).

5. A high-precision powder feeding device according to claim 4, characterized in that: The width of the top of the hook (25) is smaller than the width of the left side of the slot (26), and the height of the hook (25) is greater than the height of the slot (26).

6. A high-precision powder feeding device according to claim 4, characterized in that: The elasticity of the spring (24) is smaller than the pressure value of the sealing plate (22), and the hook (25) is arranged within the rotation range of the slot (26).

7. A high-precision powder feeding device according to claim 3, characterized in that: The dehumidification unit comprises an air outlet pipe (15), the air outlet pipe (15) is fixedly installed on the right side of the delivery tank (1), a filter through hole (14) is provided between the air outlet pipe (15) and the delivery tank (1), and a blower (16) is fixedly installed on the top of the air outlet pipe (15).

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