Flattening device for materials in hopper

Abstract

The invention relates to the technical field of test wire storage, and particularly discloses a trowelling device for materials in a hopper, which comprises a main body, the main body comprises a hopper and a bracket, and the bracket supports the hopper; one side of the hopper is fixedly connected with an opening and closing assembly, a trowelling assembly is installed in the hopper, and the trowelling assembly is fixedly connected with a lifting assembly; the opening and closing assembly controls materials to fall into the hopper, the lifting assembly controls lifting of the trowelling assembly, and the trowelling assembly trowels the materials in the hopper. Through mechanical linkage of the opening and closing assembly and the lifting assembly, the automatic leveling function after the materials are put is achieved; vertical motion is converted into rotary motion, the trowelling rods are driven to synchronously rotate at complementary angles, approximate 360-degree full-circumferential-face leveling is achieved, the number of the sliding grooves, the number of the spring rods and the number of the trowelling rods can be flexibly adjusted according to the size of the hopper, and it is ensured that the coverage range and precision are adaptive to different application scenes.

Description

Technical Field

[0001] The invention relates to the technical field of weighing hoppers, in particular to a device for leveling materials in a hopper. Background Art

[0002] In traditional hopper leveling technology, vibrators are often used to eliminate uneven material stacking through high-frequency vibration. However, during operation, vibrators generate continuous high-frequency vibrations, which can cause additional stress on the lifting system or supporting structure. For large hoppers, the installation of the vibrator requires approximately 50 cm of space, which increases the size of the equipment. The vibration can also be easily transmitted to the hopper body, damaging the hopper's sealing or structural strength. Vibrators typically rely on electromagnetic drive, and their coils are prone to overheating due to reduced insulation performance during long-term operation, resulting in increased energy consumption and frequent maintenance. The vibrator's springs, sealing rings, and other components are easily damaged by vibration fatigue and require regular replacement, increasing downtime and maintenance costs. The vibrator's leveling effect depends on the adjustment of the vibration frequency and amplitude. However, excessive vibration time or improper frequency selection may cause the material to "resonate" or slip, exacerbating uneven stacking. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide a leveling device for leveling the hopper without a vibrator.

[0004] The above technical problem is solved by the following technical solution: The present invention provides a device for leveling materials in a hopper, which includes a main body, the main body includes a hopper and a bracket, and the bracket supports the hopper;

[0005] An opening and closing assembly is fixedly connected to one side of the hopper, a smoothing assembly is installed in the hopper, and the smoothing assembly is fixedly connected to a lifting assembly;

[0006] The opening and closing component controls the material to fall into the hopper, the lifting component controls the lifting and lowering of the smoothing component, and the smoothing component smoothes the material in the hopper.

[0007] In a preferred embodiment of the device for smoothing materials in a hopper according to the present invention, the smoothing assembly includes a support rod fixedly connected to the inner wall of the hopper, and one end of the support rod is fixedly connected to a center rod.

[0008] In a preferred embodiment of the device for smoothing materials in a hopper according to the present invention: a sliding ring is sleeved on the center rod, a rotating groove is provided on the sliding ring, a first sliding groove is provided on the inner wall of the rotating groove, a first spring rod is slidably connected in the first sliding groove, and a smoothing rod is fixedly connected to the first spring rod.

[0009] In a preferred embodiment of the device for smoothing materials in a hopper according to the present invention, a second sliding groove is provided on the side wall of the rotating groove, one end of the smoothing rod is slidably connected to the second sliding groove, and the second sliding groove is arranged obliquely.

[0010] In a preferred embodiment of the device for leveling materials in a hopper according to the present invention: a trigger groove is provided at the bottom of the sliding ring, a trigger plate is slidably connected in the trigger groove, and the trigger plate is divided into a lower fixed plate and an upper rotating plate, and the lower fixed plate is rotatably connected to the upper rotating plate.

[0011] In a preferred embodiment of the device for smoothing materials in a hopper according to the present invention: a telescopic rod is fixedly connected to the lower fixed plate, the telescopic rod extends into a limiting hole opened in the side wall of the rotating groove, a second spring rod is fixedly connected to the upper rotating plate, and one end of the second spring rod is fixedly connected to the smoothing rod.

[0012] In a preferred embodiment of the device for leveling materials in a hopper according to the present invention, a third sliding groove is provided on a side wall of the rotating groove, and the lower fixed plate slides in the third sliding groove.

[0013] In a preferred embodiment of the device for leveling materials in a hopper according to the present invention: a pulling groove is provided on the sliding ring, a limiting groove is provided on the pulling groove, an unlocking plate slides in the pulling groove, a slider is fixedly connected to one side of the unlocking plate, and the slider slides in the limiting groove.

[0014] In a preferred embodiment of the device for leveling materials in a hopper according to the present invention: the opening and closing assembly includes a feed pipe fixedly connected to the upper end of the hopper, a valve fixedly connected to one side of the feed pipe, a chamber defined in the valve, a door panel slidably connected in the chamber, and a rack mounted on one side of the door panel.

[0015] In a preferred embodiment of the device for leveling materials in a hopper according to the present invention: the lifting assembly includes a receiving groove opened in the valve, a rotating rod is rotatably connected in the receiving groove, a gear and a rotating drum are fixedly connected to the rotating rod, a rope is fixedly connected to the rotating drum, and one end of the rope is fixedly connected to the unlocking plate.

[0016] The beneficial effects of the present invention are that: through the mechanical linkage of the opening and closing component and the lifting component, the automatic leveling function after the material is put into the material is realized; when the door panel is closed, the lifting component synchronously drives the leveling component to descend to a preset height; through the composite structure of the first sliding groove (double-track guide) and the second sliding groove (spiral inclined groove), the vertical motion is converted into rotational motion, and the leveling rod is driven to rotate synchronously at a complementary angle to achieve approximately 360° full-circle leveling; the number of sliding grooves, spring rods and leveling rods can be flexibly adjusted according to the size of the hopper to ensure that the coverage range and accuracy are adapted to different application scenarios; the telescopic rod on the lower fixed plate is embedded in the limit hole, and the sliding ring automatically forms a locking state when descending, ensuring that the trigger plate stably contacts the material surface; the unlocking plate slides through the limit groove, and the protrusion is used to squeeze the telescopic rod out of the limit hole, thereby realizing controllable release of the lower fixed plate, avoiding false triggering or jamming problems; through the "self-locking-unlocking" mechanism, it is ensured that the device remains stable in the non-working state, and is accurately unlocked during operation, adapting to high-frequency operation requirements, and improving system reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0018] Figure 1 Shows the overall structural diagram of the device for leveling materials in the hopper;

[0019] Figure 2 Shows an overall cross-sectional schematic diagram of a device for leveling materials in a hopper;

[0020] Figure 3 Shows the cross-sectional structure of the opening and closing components of the material leveling device in the hopper Figure 1 ;

[0021] Figure 4 Shows the cross-sectional structure of the opening and closing components of the material leveling device in the hopper Figure 2 ;

[0022] Figure 5 Shows the overall structural diagram of the leveling assembly of the device for leveling materials in the hopper;

[0023] Figure 6 Shows the cross-sectional structure of the smoothing assembly of the material smoothing device in the hopper Figure 1 ;

[0024] Figure 7 Shows the cross-sectional structure of the smoothing assembly of the material smoothing device in the hopper Figure 2 ;

[0025] Figure 8 Shown is an exploded structural schematic diagram of a leveling assembly of a device for leveling materials in a hopper.

[0026] In the picture:

[0027] 1. Main body; 11. Hopper; 12. Bracket; 13. Smoothing assembly; 14. Lifting assembly; 15. Opening and closing assembly; 131. Support rod; 132. Center rod; 133. Sliding ring; 134. First spring rod; 1331. Rotating groove; 1332. First sliding groove; 1333. Second sliding groove; 1334. Triggering groove; 1335. Third sliding groove; 1339. Limiting hole; 135. Smoothing rod; 1 36. Trigger plate; 1361. Lower fixed plate; 1362. Upper rotating plate; 1363. Telescopic rod; 1364. Second spring rod; 139. Unlocking plate; 137. Pulling slot; 138. Limiting slot; 141. Accommodating slot; 142. Rotating rod; 143. Gear; 144. Rotating drum; 145. Rope; 151. Feeding tube; 152. Valve; 153. Chamber; 154. Door panel; 156. Rack. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0029] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0030] Reference Figures 1 to 8 The present embodiment provides a mixed sample storage and weighing hopper 11 device, including a main body 1, the main body 1 including a hopper 11 and a bracket 12, the bracket 12 is used to support the hopper 11; an opening and closing component 15 is fixedly connected to one side of the hopper 11, a leveling component 13 is installed in the hopper 11, and the leveling component 13 is fixedly connected to the lifting component 14; the opening and closing component 15 controls the material to fall into the hopper 11, the lifting component 14 controls the lifting and lowering of the leveling component 13, and the leveling component 13 levels the material in the hopper 11.

[0031] Among them, the bracket 12 is installed at the bottom of the hopper 11 to provide mechanical support for the hopper 11; the opening and closing component 15 is fixedly connected to the upper end of the hopper 11. The opening and closing of the opening and closing component 15 can dynamically control the rate and timing of the material flowing into the hopper 11, ensuring the controllability of the material delivery process. The lifting component 14 accurately adjusts the height of the leveling component 13 through mechanical transmission. When the material no longer falls into the hopper 11, the opening and closing component 15 will close the feed port and at the same time drive the lifting component 14 to move, lowering the leveling component 13 to a suitable height to level the material, thereby preventing local stress concentration caused by uneven material stacking, which may cause inaccurate weighing of the hopper 11.

[0032] Furthermore, the smoothing assembly 13 includes a support rod 131 fixedly connected to the inner wall of the hopper 11 , one end of the support rod 131 is fixedly connected to a center rod 132 , and a sliding ring 133 is sleeved on the center rod 132 .

[0033] Among them, the support rod 131 provides stable support for the center rod 132. The center rod 132 is arranged in the center along the axis of the hopper 11, and its outer wall is slidably connected with the sliding ring 133 to ensure that the leveling action covers the entire area of ​​the hopper 11. The opening of the center rod 132 near the feed port is designed as a closed pipe mouth, which not only prevents the material from reversely penetrating into the center rod 132 and causing blockage, but also reduces the weight of the overall structure through the hollow cavity.

[0034] Furthermore, a rotation groove 1331 is defined on the sliding ring 133 , a first sliding groove 1332 is defined on the inner wall of the rotation groove 1331 , a first spring rod 134 is slidably connected in the first sliding groove 1332 , and a smoothing rod 135 is fixedly connected to the first spring rod 134 .

[0035] Among them, the rotating groove 1331 opened on the sliding ring 133 is L-shaped, and the top of the horizontal inner wall of the rotating groove 1331 is provided with a first sliding groove 1332. The first sliding groove 1332 is a two-semicircular structure, forming a double-track guide. A first spring rod 134 is slidably connected in each first sliding groove 1332. The top of the first spring rod 134 is fixedly connected to the T-shaped block. The first spring rod 134 is a T-shaped groove structure. The first spring rod 134 is slidably connected to the first sliding groove 1332 through the T-shaped block. The sliding cooperation between the block and the first sliding groove 1332 realizes elastic buffering and directional guidance. The two sets of first spring rods 134 respectively drive the corresponding smoothing rods 135 to move up and down. The smoothing rods 135 are a telescopic structure and can always be in contact with the inner wall of the hopper 11. It is suitable for hoppers 11 of different shapes. When the material is filled, the smoothing rod 135 rotates due to the rotating groove 1331, which triggers the spring rod to slide along the T-slot track, driving the double smoothing rods 135 to rotate synchronously at complementary angles to smooth the material in the hopper 11.

[0036] Specifically, the rotation range of the smoothing rod 135 is the shape range of the first sliding groove 1332. The number of the first sliding groove 1332, the first spring rod 134 and the smoothing rod 135 can be changed, as long as the number of the first sliding groove 1332, the first spring rod 134 and the smoothing rod 135 is consistent, and the sum of the rotation angles of the smoothing rod 135 is close to 360 degrees. Therefore, by increasing the number of groups of the first sliding groove 1332, the first spring rod 134 and the smoothing rod 135 (the number of the three must be kept consistent), the leveling coverage and accuracy can be flexibly adjusted, which not only meets the adaptation requirements of different hopper sizes 11, but also eliminates the stress concentration risk of a single leveling point through the synergistic effect of multiple points, thereby significantly improving the uniformity of material distribution and system stability.

[0037] Furthermore, a second sliding groove 1333 is formed on the side wall of the rotating groove 1331 , and one end of the smoothing rod 135 is slidably connected to the second sliding groove 1333 , and the second sliding groove 1333 is tilted.

[0038] The second sliding groove 1333 is opened in the vertical direction of the rotating groove 1331. There are two second sliding grooves 1333, and they are in a centrally symmetrical spiral shape to form a continuous guide channel. A protrusion is fixed on one side of the smoothing rod 135. The protrusion is embedded in the second sliding groove 1333 and forms a sliding pair therewith. The linear motion is converted into rotational motion through the meshing relationship between the protrusion and the second sliding groove 1333. When the first spring rod 134 drives the smoothing rod 135 to rise and fall, the protrusion of the second sliding groove 1333 moves along the inclination of the second sliding groove 1333. Inclined sliding forces the trowel plate to rotate around the central axis through the geometric constraint of the helix angle. Each second sliding groove 1333 corresponds to the rotation angle of the driving half-side trowel plate. The double grooves work together to achieve approximately 360° continuous leveling coverage. The vertical displacement is converted into horizontal plane rotation through the transmission mechanism of the second sliding groove 1333 and the protrusion, which avoids the complex structure of the traditional gear 143 transmission and realizes the slow and smooth rotation of the trowel plate through the progressive characteristics of the spiral lift, significantly improving the uniformity of the leveling process and the stability of the equipment operation.

[0039] Furthermore, a trigger groove 1334 is provided at the bottom of the sliding ring 133, and a trigger plate 136 is slidably connected in the trigger groove 1334. The trigger plate 136 is divided into a lower fixed plate 1361 and an upper rotating plate 1362. The lower fixed plate 1361 is rotatably connected to the upper rotating plate 1362. The upper rotating plate 1362 is fixedly connected to a second spring rod 1364, and one end of the second spring rod 1364 is fixedly connected to the smoothing rod 135.

[0040] Among them, the trigger groove 1334 is opened at the bottom of the rotating groove 1331, passing through the sliding ring 133, and the trigger plate 136 slides in the trigger groove 1334. When the trigger plate 136 contacts the material, the sliding ring 133 continues to move downward. At this time, the trigger plate 136 slides in the trigger groove 1334. The trigger plate 136 is divided into a lower fixed plate 1361 and an upper rotating plate 1362. The lower fixed plate 1361 is a plurality of pieces. The plurality of lower fixed plates 1361 are connected by the upper rotating plate 1362. Each group of lower fixed plates 1361 is connected to the upper rotating plate 1362 through a rotating pair. 362 are connected to form a unit structure that can move independently. The number of trigger grooves 1334 strictly corresponds to the number of lower fixed plates 1361, ensuring that each material contact point can independently trigger the local leveling action. The complete ring structure formed by the upper rotating plate 1362 uses multi-point synchronous transmission to keep the rotation angle of all the smoothing rods 135 coordinated. The upper rotating plate 1362 is a complete circle, and a second spring rod 1364 is fixed on the upper end. The number of the second spring rod 1364 is the same as that of the smoothing rod 135. When the trigger plate 136 contacts the material, the sliding ring 1 33 continues to move downward, the trigger plate 136 slides in the trigger groove 1334 and the rotation groove 1331, the upper rotating plate 1362 of the trigger plate 136 moves upward, the second spring rod 1364 at the upper end of the upper rotating plate 1362 is squeezed, and a thrust is exerted on the smoothing rod 135. After the smoothing rod 135 is thrust, the first spring rod 134 is thrust and pushes the smoothing rod 135. Therefore, when the sliding ring 133 falls onto the material, the lower fixed plate 1361 is subjected to impact force, and the sliding ring 133 continues to move downward. At this time, the first spring rod 134 As the sliding ring 133 continues to move downward, the second spring rod 1364 no longer moves, and the distance between the upper rotating plate 1362 and the rotating groove 1331 decreases. The elastic potential energy on the first spring rod 134 and the second spring rod 1364 becomes unbalanced. As the second spring rod 1364 releases its elastic potential energy, it pushes the first spring rod 134, and then the second spring rod 1364 releases its elastic potential energy to push the first spring rod 134, and so on, forming a "push-pull-push" compound motion mode, realizing the up and down pushing of the smoothing rod 135, and then realizing the rotation of the smoothing rod 135.

[0041] Furthermore, a third sliding groove 1335 is provided on the side wall of the rotating groove 1331, and the lower fixed plate 1361 slides in the third sliding groove 1335. A telescopic rod 1363 is fixedly connected to the lower fixed plate 1361, and the telescopic rod 1363 extends into the limiting hole 1339 provided on the side wall of the rotating groove 1331. A pulling groove 137 is provided on the sliding ring 133, and a limiting groove 138 is provided on the pulling groove 137. An unlocking plate 139 slides in the pulling groove 137, and a slider is fixedly connected to one side of the unlocking plate 139, and the slider slides in the limiting groove 138.

[0042] Among them, the side wall of the rotating groove 1331 is provided with a third sliding groove 1335 along the movement trajectory of the lower fixed plate 1361, and the sliding structure composed of a T-shaped block and a T-shaped groove is embedded in the side wall of the rotating groove 1331. When the lower fixed plate 1361 moves downward with the sliding ring 133, the T-shaped block slides along the third sliding groove 1335, which not only limits the radial deviation of the lower fixed plate 1361, but also guides it to move along the preset path through the geometric constraint of the T-shaped groove. A telescopic rod 1363 is fixed on the lower fixed plate 1361. After the lower fixed plate 1361 contacts the material, the sliding ring 133 continues to move downward, and the lower fixed plate 1361 slides in the third sliding groove 1335. The telescopic rod 1363 on the lower fixed plate 1361 is in contact with the limiting hole 1 on the side wall of the rotating groove 1331. 339 corresponds, it is driven by elastic potential energy to automatically embed into the limiting hole 1339, forming a mechanical self-locking state, the end of the telescopic rod 1363 is circular, one end of the limiting hole 1339 is a pulling groove 137, the unlocking plate 139 slides in the pulling groove 137, and a protrusion is fixedly connected to the unlocking plate 139, which slides in the limiting groove 138 to limit the sliding of the unlocking plate 139 in the sliding ring 133. When the unlocking plate 139 slides in the pulling groove 137, the round end of the telescopic rod 1363 can be squeezed into the limiting hole 1339 through the limiting hole 1339 to unlock the lower fixed plate 1361. The dynamic balance mechanism of "self-locking and unlocking" realizes precise control of the unlocking action through mechanical linkage.

[0043] Furthermore, the opening and closing assembly 15 includes a feed pipe 151 fixedly connected to the upper end of the hopper 11, a valve 152 fixedly connected to one side of the feed pipe 151, a chamber 153 is opened in the valve 152, and a door panel 154 is slidably connected in the chamber 153.

[0044] The valve 152 installed on the feed pipe 151 controls the material to fall into the hopper 11 , and the door plate 154 in the valve 152 slides in the chamber 153 , thereby realizing the opening and closing of the feed pipe 151 to drop the material.

[0045] Furthermore, the lifting assembly 14 includes a receiving groove 141 opened in the valve 152, and a rotating rod 142 is rotatably connected in the receiving groove 141. A gear 143 and a rotating drum 144 are fixedly connected to the rotating rod 142. A rope 145 is fixedly connected to the rotating drum 144. One end of the rope 145 is fixedly connected to the unlocking plate 139, and a rack 156 is installed on one side of the door panel 154.

[0046] Among them, the lifting component 14 is in the internal cavity of the valve 152, and its accommodating groove 141 is embedded with a rotating rod 142. The rotating rod 142 is fixedly connected to the gear 143 and the rotating drum 144. When the door panel 154 is closed, the rack 156 installed on its side wall is precisely meshed with the gear 143, and the linear motion of the door panel 154 is converted into the rotational motion of the rotating rod 142 through the gear 143. At this time, the gear 143 drives the rotating drum 144 to rotate, releasing the rope 145 wrapped around its surface, and the unlocking plate 139 connected to the end of the rope 145 is released. The sliding ring 133 is lowered along the center rod 132 to the preset leveling position through mechanical linkage. When the door panel 154 is opened, the rack 156 and the gear 143 engage in reverse, driving the rotating rod 142 to rotate in the opposite direction. The drum 144 ensures a constant winding direction by increasing the length of the rope 145 (reserving redundancy), preventing the winding direction of the rope 145 from changing and affecting the movement of the sliding ring 133. At the same time, the tension of the rope 145 is transmitted to the sliding ring 133 through the unlocking plate 139, causing it to withdraw to its initial position along the center rod 132. This design, through the multi-stage transmission mechanism of gear 143, rack 156, and drum 144, achieves the spatiotemporal coordination of material delivery and leveling.

[0047] In summary, door panel 154 slides along chamber 153, and rack 156 meshes with gear 143 to drive drum 144 to rotate, releasing rope 145 and stretching it to reserve excess length, ensuring that door panel 154 is fully open. After door panel 154 is opened, material enters hopper 11 through feed pipe 151. Simultaneously, rack 156 at the bottom of door panel 154 meshes with gear 143, raising sliding ring 133 to the upper end of center rod 132.

[0048] When the material is filled, a hydraulic cylinder or motor drives door panel 154 to slide along chamber 153 to a closed position. Rack 156 meshes with gear 143 in the opposite direction, driving drum 144 to rotate and wind rope 145. Unlocking plate 139 drives sliding ring 133 downward along center rod 132. Trigger plate 136 at the bottom of sliding ring 133 contacts the material surface, triggering the subsequent leveling action. The sliding ring 133 continues to descend, and the lower fixed plate 1361 in the trigger plate 136 slides along the third sliding groove 1335, and the telescopic rod 1363 is embedded in the limiting hole 1339 to form a self-locking state. When the unlocking plate 139 slides, the slider moves along the limiting groove 138, pushing the telescopic rod 1363 out of the limiting hole 1339, releasing the self-locking state, and then the unlocking plate 139 continues to move downward until the limiting hole 1339 is exposed, and the telescopic rod 1363 is embedded in the limiting hole 1339 to form a self-locking state again. The upper rotating plate 1362 is driven by the thrust of the second spring rod 1364 to drive the smoothing rod 135 to rotate, the first spring rod 134 slides along the first sliding groove 1332, and the protrusion on the smoothing rod 135 slides along the spiral second sliding groove 1333, converting the vertical displacement into rotational motion, realizing approximately 360° continuous leveling.

[0049] When the door panel 154 is opened again next time, the gear 143 engages with the rack 156, and the unlocking plate 139 slides accurately through the limit slot 138, pushing the round end of the telescopic rod 1363 out of the limit hole 1339, releasing the mechanical lock of the lower fixed plate 1361, and the rotating drum 144 wraps the rope 145, and the unlocking plate 139 drives the sliding ring 133 to move up along the center rod 132 to the initial position, and the trigger plate 136 is reset to the trigger slot 1334, ready for the next operation. The entire system realizes the temporal and spatial coordination of the opening and closing component 15 and the lifting component 14 through the multi-stage transmission mechanism of the gear 143, rack 156 and rotating drum 144.

[0050] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A device for leveling materials in a hopper, characterized by: include, A main body (1), the main body (1) comprising a hopper (11) and a bracket (12), the bracket (12) supporting the hopper (11); An opening and closing assembly (15) is fixedly connected to one side of the hopper (11), a smoothing assembly (13) is installed in the hopper (11), and a lifting assembly (14) is fixedly connected to the smoothing assembly (13); The opening and closing component (15) controls the material to fall into the hopper (11), the lifting component (14) controls the lifting and lowering of the smoothing component (13), and the smoothing component (13) smoothes the material in the hopper (11).

2. The device for leveling materials in a hopper according to claim 1, characterized in that: The smoothing assembly (13) comprises a support rod (131) fixedly connected to the inner wall of the hopper (11), and one end of the support rod (131) is fixedly connected to a center rod (132).

3. The device for leveling materials in a hopper according to claim 2, characterized in that: The center rod (132) is sleeved with a sliding ring (133), the sliding ring (133) is provided with a rotating groove (1331), the inner wall of the rotating groove (1331) is provided with a first sliding groove (1332), a first spring rod (134) is slidably connected in the first sliding groove (1332), and a smoothing rod (135) is fixedly connected to the first spring rod (134).

4. The device for leveling materials in a hopper according to claim 3, characterized in that: A second sliding groove (1333) is provided on the side wall of the rotating groove (1331), one end of the smoothing rod (135) is slidably connected in the second sliding groove (1333), and the second sliding groove (1333) is tilted.

5. The device for leveling materials in a hopper according to claim 4, characterized in that: A trigger groove (1334) is provided at the bottom of the sliding ring (133), and a trigger plate (136) is slidably connected in the trigger groove (1334). The trigger plate (136) is divided into a lower fixed plate (1361) and an upper rotating plate (1362), and the lower fixed plate (1361) is rotatably connected to the upper rotating plate (1362).

6. The device for leveling materials in a hopper according to claim 5, characterized in that: A telescopic rod (1363) is fixedly connected to the lower fixed plate (1361), and the telescopic rod (1363) extends into a limiting hole (1339) provided on the side wall of the rotating groove (1331). A second spring rod (1364) is fixedly connected to the upper rotating plate (1362), and a section of the second spring rod (1364) is fixedly connected to the smoothing rod (135).

7. The device for leveling materials in a hopper according to claim 6, characterized in that: A third sliding groove (1335) is provided on the side wall of the rotating groove (1331), and the lower fixed plate (1361) slides in the third sliding groove (1335).

8. The device for leveling materials in a hopper according to claim 7, characterized in that: The sliding ring (133) is provided with a pulling groove (137), the pulling groove (137) is provided with a limiting groove (138), an unlocking plate (139) slides in the pulling groove (137), a slider is fixedly connected to one side of the unlocking plate (139), and the slider slides in the limiting groove (138).

9. The device for leveling materials in a hopper according to claim 8, characterized in that: The opening and closing assembly (15) comprises a feed pipe (151) fixedly connected to the upper end of the hopper (11); a valve (152) is fixedly connected to one side of the feed pipe (151); a chamber (153) is provided in the valve (152); a door panel (154) is slidably connected in the chamber (153); and a rack (156) is installed on one side of the door panel (154).

10. The device for leveling materials in a hopper according to claim 9, characterized in that: The lifting assembly (14) includes a receiving groove (141) provided in the valve (152), a rotating rod (142) is rotatably connected in the receiving groove (141), a gear (143) and a rotating drum (144) are fixedly connected to the rotating rod (142), a rope (145) is fixedly connected to the rotating drum (144), and one end of the rope (145) is fixedly connected to the unlocking plate (139).

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