Semi-sealed constant feeder

Abstract

The utility model belongs to the technical field of feeding tools, and particularly relates to a semi-sealed constant feeder which comprises a blanking hopper, a transmission belt located at the bottom end of the blanking hopper, a plurality of rotating shafts located in the blanking hopper and close to the upper end and a material trowelling mechanism located in the blanking hopper and close to the bottom end. A material conveying opening is formed in one side of the discharging groove, the guide sliding block and the troweling plate are pushed to move between the two material limiting plates in a reciprocating mode through the driving device, materials falling onto the transmission belt from the interior of the falling hopper are troweled through the troweling plate moving in the reciprocating mode, and the materials are evenly conveyed out through the transmission belt. And the rotating screw rod drives the internal thread barrel to move up and down, so that the height of the material limiting plate and the height of the trowelling plate are adjusted, the thickness of the materials falling on the transmission belt is changed by adjusting the height of the material limiting plate and the height of the trowelling plate, and the technical problems proposed in the technical background are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of feeding tools, in particular to a semi-sealed quantitative feeder. Background Art

[0002] Semi-sealed quantitative feeder is a special device used for quantitative feeding of powder materials, which is generally used in the construction, fertilizer, medicine and other industries. Traditional quantitative feeders generally include an annular conveyor belt mounted on a bracket and supported by a driving roller and a supporting roller for rotation. The driving roller is driven by a motor mounted on the bracket, and a weighing sensor is also mounted on the bracket. In addition, the semi-sealed quantitative feeder has a semi-sealed cover to prevent dust from contaminating the material being transported. In the prior art, the semi-sealed quantitative feeder has a simple structure of the feed hopper, which leads to partial collapse of the material when unloading, making the material falling on the conveyor belt uneven.

[0003] In the prior art, for example, the patent application number CN202223200046.7 discloses a utility model patent for a quantitative feeder, in which two rows of guide pillars are evenly distributed in the feed box, and the guide pillars in adjacent rows are staggered, so as to realize the diversion of the piled falling materials, so that the materials fall evenly onto the conveyor belt, thereby improving the uniformity of the belt feeding;

[0004] However, in the actual working process, even with staggered guide pillars, it is impossible to ensure that the material falls on the belt evenly, and it is even more difficult to control the thickness of the material falling on the conveyor belt. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a semi-sealed quantitative feeder, which has the effects of smooth feeding and adjustable thickness, so that the quantitative feeding of materials is more accurate.

[0006] The invention provides a semi-sealed quantitative feeder as claimed in claim 1, wherein the feeding mechanism is a material conveying mechanism, wherein the feeding mechanism is a material conveying mechanism, and the material conveying mechanism comprises two symmetrically arranged material limiting plates, one of which is fixed on the inner wall of the feeding chute located on one side of the feeding chute, the bottom end of the material limiting plates protruding from the bottom end surface of the feeding chute, the opposite surfaces of the two material limiting plates are driven and slidably connected with guide sliders, the bottom ends of the two guide sliders are fixedly connected with a plurality of screed plates which are linearly and equidistantly arranged, a driving belt is installed below the feeding chute, a semi-sealed cover shell is sleeved on the outer side of the driving belt, the semi-sealed cover shell is fixedly connected to the feeding hopper, and a discharge port is opened on the lower side of the semi-sealed cover shell away from one end of the feeding hopper;

[0007] The material can be discharged through the feed port by setting the feed port, and the guide slider and the screed plate are pushed by the driving device to move back and forth between the two material limit plates, so that the material falling from the drop hopper onto the transmission belt is smoothed by the reciprocating screed plate, so that the transmission belt can transport the material evenly, and the quantitative transportation of the material is more accurate, which solves the technical problems raised in the technical background. The material falls onto the transmission belt through the drop hopper and the material smoothing mechanism, and is transported out by the transmission belt. The transmission belt is protected by the semi-sealed cover to prevent dust from falling into the material above the transmission belt.

[0008] Optionally, a hydraulic cylinder is connected between one side of the guide slider and the drop hopper, and the guide slider and the trowel plate are reciprocated by telescoping and pushing the hydraulic cylinder.

[0009] Optionally, a hydraulic cylinder fixing barrel is fixedly provided on one side of the feeding port, and the cylinder body of the hydraulic cylinder is located inside the hydraulic cylinder fixing barrel and is adapted between the hydraulic cylinder fixing barrel;

[0010] The cylinder body part of the hydraulic cylinder is fixed by the provided hydraulic cylinder fixing tube, and at the same time, the cylinder body part of the hydraulic cylinder is fixed by the provided hydraulic cylinder fixing tube.

[0011] Optionally, the plurality of rotating shafts are arranged linearly and at equal intervals, and a plurality of rotating shaft paddles arranged circumferentially and at equal intervals are fixedly disposed on the arc edge of the rotating shaft;

[0012] The rotation of the shaft causes the shaft paddles to evenly peel off the material in the hopper, preventing the material falling from the hopper from partial collapse and falling, and eventually causing the material to fall unevenly on the upper end surface of the transmission belt. This makes the material falling from the hopper to the transmission belt more even, which is more conducive to the even transportation of the material by the transmission belt and makes the quantitative transportation more accurate.

[0013] Optionally, a meshing gear is coaxially fixedly disposed on one end of the rotating shaft, and adjacent meshing gears are meshed with each other, and a rotating shaft motor is drivingly mounted on one end of one of the rotating shafts;

[0014] Adjacent rotating shafts are meshed with each other through meshing gears, so that the rotating shafts rotate synchronously. At the same time, one of the rotating shaft motors transmits power to the rotation of the rotating shafts, so that the rotating shafts rotate synchronously and the materials in the hopper are evenly peeled down.

[0015] Optionally, both sides of the material limiting plate are fixed with an internal threaded barrel, the inner side of the internal threaded barrel is threadedly connected with a screw, the screw is rotationally connected with the drop hopper in a limited position, and a screw motor is installed at the top of the screw;

[0016] It is worth mentioning that when the material is transported out from the position of the drop hopper on the transmission belt, the material is first smoothed by the screed plate and the material limiting plate. Therefore, the gap between the material limiting plate and the screed plate and the transmission belt is the thickness of the material finally transported out from the transmission belt. The output shaft of the screw motor drives the screw to rotate, and the screw and the internal threaded barrel are threadedly connected. The rotating screw drives the internal threaded barrel to move up and down, thereby adjusting the height of the material limiting plate and the screed plate. By adjusting the height of the material limiting plate and the screed plate, the thickness of the material falling on the transmission belt can be changed.

[0017] Optionally, a motor fixing cylinder is fixedly provided at the positions near the four corners of the inner side of the drop hopper, a threaded cover is threadedly connected to the top end of the motor fixing cylinder, and the screw motor is located inside the motor fixing cylinder;

[0018] The motor fixing barrel is provided to protect the screw motor and prevent material dust from entering the screw motor and damaging the screw motor. A threaded cover is provided on the motor fixing barrel to facilitate installation and disassembly of the screw motor in the motor fixing barrel.

[0019] In summary, compared with the prior art, the beneficial effects of this solution are:

[0020] 1. The driving device pushes the guide slider and the screed plate to move back and forth between the two material limit plates, so that the material falling from the hopper onto the transmission belt is smoothed by the reciprocating screed plate, so that the transmission belt can evenly transport the material, making the quantitative transportation of the material more accurate, solving the technical problems raised in the technical background.

[0021] 2. The rotating screw drives the internal threaded barrel to move up and down, thereby adjusting the height of the material limiting plate and the screed plate. By adjusting the height of the material limiting plate and the screed plate, the thickness of the material falling on the transmission belt can be changed, solving the technical problems raised in the technical background. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention.

[0023] Figure 2 It is a cross-sectional view of the local structure in the first embodiment of the utility model.

[0024] Figure 3 This is another partial structural cross-sectional view of the first embodiment of the utility model.

[0025] Figure 4 For the utility model embodiment 1 Figure 3 A magnified view of the structure at center.

[0026] Figure 5 It is a structural cross-sectional view in one direction in the first embodiment of the utility model.

[0027] Figure 6 It is a structural schematic diagram of the material leveling mechanism in the first embodiment of the utility model.

[0028] Figure 7 It is a schematic structural diagram of the rotating shaft in the first embodiment of the utility model.

[0029] Figure 8 It is a partial cross-sectional view of the structure in the second embodiment of the present utility model.

[0030] Fig. 9 It is an exploded view of the local structure in the second embodiment of the present utility model.

[0031] Fig.10 For the second embodiment of the utility model Fig. 9 A magnified view of the structure at point B.

[0032] 10. Drop hopper; 11. Feed chute; 12. Feed port; 13. Hydraulic cylinder fixing cylinder; 14. Motor fixing cylinder; 15. Internal thread; 16. Threaded cover; 17. Handle; 20. Rotating shaft; 21. Rotating shaft paddle; 22. Meshing gear; 23. Rotating shaft motor; 30. Material smoothing mechanism; 31. Material limit plate; 32. Guide rod fixing block; 33. Guide rod; 34. Guide slide block; 35. Smoothing plate; 36. Hydraulic cylinder; 37. Internal threaded cylinder; 38. Screw; 39. Screw motor; 41. Transmission shaft; 42. Transmission belt; 43. Transmission motor; 44. Fixed plate; 50. Semi-sealed cover. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0034] Example 1: Reference Figure 1-Figure 7 A semi-sealed quantitative feeder comprises a hopper 10, a transmission belt 42 at the bottom of the hopper 10, a plurality of rotating shafts 20 located near the upper end of the hopper 10, and a material leveling mechanism 30 located near the bottom of the hopper 10. A material trough 11 is fixedly provided at the bottom of the hopper 10, and a material delivery port 12 is provided on one side of the material trough 11.

[0035] The material is discharged through the material delivery port 12 by setting the material delivery port 12;

[0036] The material smoothing mechanism 30 includes two symmetrically arranged material limiting plates 31, wherein the material limiting plates 31 are located at the inner side of the material chute 11, wherein one of the material limiting plates 31 is fixed on the inner wall of the material chute 11 located on one side of the material delivery port 12, and the bottom end of the material limiting plate 31 extends out of the bottom end surface of the material delivery port 12, and the two material limiting plates 31 are fixedly provided with guide rod fixing blocks 32 at the positions near the two sides of the opposite surfaces, and two guide rod fixing blocks 32 are fixedly connected with two guide rods 33, and guide sliders 34 are adapted to be slidably connected with the two guide rods 33, and the bottom ends of the two guide sliders 34 are fixedly connected with a plurality of trowel plates 35 arranged linearly and equidistantly.

[0037] The guide slider 34 and the trowel plate 35 are pushed by the driving device to reciprocate between the two material limiting plates 31, so that the material falling from the hopper 10 onto the transmission belt 42 is smoothed by the reciprocating trowel plate 35, so that the transmission belt 42 evenly conveys the material, making the quantitative conveying of the material more accurate, thereby solving the technical problem raised in the technical background;

[0038] A transmission belt 42 is installed below the material discharge chute 11. The conveying direction of the transmission belt 42 passes through the material delivery port 12. Transmission shafts 41 are installed at both ends of the transmission belt 42. Fixed plates 44 are installed on both sides of the transmission belt 42. The transmission shaft 41 is rotationally connected with the fixed plate 44. A transmission motor 43 is installed at one end of one of the transmission shafts 41.

[0039] The material passes through the drop hopper 10 and the material leveling mechanism 30 and falls onto the transmission belt 42 , and is then transported out by the transmission belt 42 .

[0040] A semi-sealed cover 50 is sleeved on the outer sides of the transmission belt 42 and the fixed plate 44, a gap is left between the inner cavity of the semi-sealed cover 50 and the upper end surface of the transmission belt 42, the semi-sealed cover 50 is fixedly connected to the fixed plate 44, the semi-sealed cover 50 is fixedly connected to the drop hopper 10, and a discharge port is opened on the lower side of the semi-sealed cover 50 away from the drop hopper 10;

[0041] The semi-sealed cover 50 is provided to protect the transmission belt 42 to prevent dust from falling into the material above the transmission belt 42 .

[0042] In this embodiment, a hydraulic cylinder 36 is connected between one side of the guide slider 34 and the drop hopper 10, a piston rod of the hydraulic cylinder 36 is fixedly connected to the guide slider 34, and a cylinder body of the hydraulic cylinder 36 is fixedly connected to the drop hopper 10;

[0043] The guide slide block 34 and the trowel plate 35 are reciprocated by the extension and extension of the hydraulic cylinder 36 .

[0044] In this embodiment, a hydraulic cylinder fixing barrel 13 is fixedly provided on one side of the feeding port 12, and the cylinder body of the hydraulic cylinder 36 is located inside the hydraulic cylinder fixing barrel 13 and is adapted between the hydraulic cylinder fixing barrel 13;

[0045] The cylinder body part of the hydraulic cylinder 36 is fixed by the provided hydraulic cylinder fixing tube 13 , and the cylinder body part of the hydraulic cylinder 36 is fixed by the provided hydraulic cylinder fixing tube 13 .

[0046] In this embodiment, a plurality of rotating shaft paddles 21 are fixedly arranged on the arc edge of the rotating shaft 20 and arranged at equal intervals around the circumference;

[0047] By rotating the rotating shaft 20, the rotating shaft paddle 21 can evenly peel off the material in the hopper 10, so as to prevent the material falling from the hopper 10 from partially collapsing and falling, and the material finally falling on the upper end surface of the transmission belt 42 is uneven, so that the material falling from the hopper 10 to the transmission belt 42 is more uniform, which is more conducive to the uniform transportation of the material by the transmission belt 42, making the quantitative transportation more accurate.

[0048] Furthermore, a meshing gear 22 is coaxially fixedly provided at one end of the rotating shaft 20, and adjacent meshing gears 22 mesh with each other, and a rotating shaft motor 23 is driven and installed at one end of one of the rotating shafts 20, and the rotating shaft motor 23 is fixedly connected to the dropping hopper 10, and the output shaft of the rotating shaft motor 23 is coaxially fixedly connected to the rotating shaft 20 at this position;

[0049] Adjacent rotating shafts 20 are meshed with each other through meshing gears 22, so that the rotating shafts 20 rotate synchronously. At the same time, one of the rotating shaft motors 23 transmits power to the rotation of the rotating shafts 20, so that the rotating shafts 20 rotate synchronously, and the materials in the drop hopper 10 are evenly peeled downwards.

[0050] Example 2: Reference Figure 8-Figure 10 The difference between this embodiment and the first embodiment is that an internal threaded barrel 37 is fixedly provided on both sides of the material limiting plate 31, and a screw 38 is threadedly connected inside the internal threaded barrel 37, and the screw 38 is rotationally connected to the drop hopper 10 in a limited position, and a screw motor 39 is installed at the top of the screw 38 for driving, and the screw motor 39 is fixedly connected to the drop hopper 10;

[0051] It is worth mentioning that when the material is transported out from the position of the drop hopper 10 on the transmission belt 42, the material is first smoothed by the trowel plate 35 and the material limiting plate 31. Therefore, the gap size between the material limiting plate 31 and the trowel plate 35 and the transmission belt 42 is the thickness of the material finally transported out from the transmission belt 42. The output shaft of the screw motor 39 drives the screw 38 to rotate. The screw 38 is threadedly connected to the internal threaded barrel 37. The rotating screw 38 drives the internal threaded barrel 37 to move up and down, thereby adjusting the height of the material limiting plate 31 and the trowel plate 35. By adjusting the height of the material limiting plate 31 and the trowel plate 35, the thickness of the material falling on the transmission belt 42 is changed.

[0052] Furthermore, a motor fixing cylinder 14 is fixedly provided at the positions near the four corners of the inner side of the drop hopper 10, an inner thread 15 is provided on the inner wall of the top end of the motor fixing cylinder 14, a threaded cover 16 is threadedly connected to the top end of the motor fixing cylinder 14, a handle 17 is fixedly provided at the top end of the threaded cover 16, and the screw motor 39 is located on the inner side of the motor fixing cylinder 14;

[0053] The motor fixing tube 14 is provided to protect the screw motor 39 and prevent material dust from entering the screw motor 39 and damaging the screw motor 39. A threaded cover 16 is threadedly connected to the motor fixing tube 14 to facilitate installation and disassembly of the screw motor 39 in the motor fixing tube 14.

[0054] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0055] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0056] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A semi-sealed quantitative feeder, characterized in that: The invention comprises a material drop hopper (10), a transmission belt (42) located at the bottom of the material drop hopper (10), a plurality of rotating shafts (20) located near the upper end of the material drop hopper (10), and a material smoothing mechanism (30) located near the bottom of the material drop hopper (10), wherein a material drop chute (11) is fixedly provided at the bottom of the material drop hopper (10), a material delivery port (12) is provided on one side of the material drop chute (11), and the material smoothing mechanism (30) comprises two symmetrically arranged material limiting plates (31), wherein one of the material limiting plates (31) is fixed on the inner wall of the material drop chute (11) located on one side of the material delivery port (12), and the material limiting plates (31) are fixed on the inner wall of the material drop chute (11) located on the side of the material delivery port (12). The bottom end of the material stopper (31) extends out of the bottom end surface of the material delivery port (12); the two material limit plates (31) are slidably connected to each other on opposite surfaces and are provided with guide sliders (34); the bottom ends of the two guide sliders (34) are fixedly connected to a plurality of trowel plates (35) arranged at equal intervals in a linear manner; a transmission belt (42) is driven and installed below the material discharge chute (11); a semi-sealed cover shell (50) is sleeved on the outer side of the transmission belt (42); the semi-sealed cover shell (50) is fixedly connected to the material discharge hopper (10); and a discharge port is provided on the lower side of the semi-sealed cover shell (50) away from the material discharge hopper (10).

2. A semi-sealed quantitative feeder according to claim 1, characterized in that: A hydraulic cylinder (36) is connected between one side of the guide slide block (34) and the drop hopper (10).

3. A semi-sealed quantitative feeder according to claim 2, characterized in that: A hydraulic cylinder fixing barrel (13) is fixedly provided on one side of the material delivery port (12), and a cylinder body portion of the hydraulic cylinder (36) is located inside the hydraulic cylinder fixing barrel (13) and is adapted between the hydraulic cylinder fixing barrel (13).

4. A semi-sealed quantitative feeder according to claim 1, characterized in that: The plurality of rotating shafts (20) are arranged linearly and at equal intervals, and a plurality of rotating shaft paddles (21) arranged circumferentially and at equal intervals are fixedly disposed on the arc edge of the rotating shaft (20).

5. A semi-sealed quantitative feeder according to claim 4, characterized in that: A meshing gear (22) is coaxially fixedly disposed on one end of the rotating shaft (20), and adjacent meshing gears (22) mesh with each other. A rotating shaft motor (23) is driveably mounted on one end of one of the rotating shafts (20).

6. A semi-sealed quantitative feeder according to claim 1, characterized in that: Internally threaded barrels (37) are fixedly provided on both sides of the material limiting plate (31), and a screw rod (38) is threadedly connected to the inner side of the internally threaded barrel (37). The screw rod (38) is rotationally connected to the material drop hopper (10) in a limited position, and a screw motor (39) is installed at the top end of the screw rod (38) for driving.

7. A semi-sealed quantitative feeder according to claim 6, characterized in that: A motor fixing cylinder (14) is fixedly provided at positions near the four corners of the inner side of the drop hopper (10), a threaded cover (16) is threadedly connected to the top end of the motor fixing cylinder (14), and the screw motor (39) is located on the inner side of the motor fixing cylinder (14).

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