Material shifting device for storage cabinet and storage cabinet

Abstract

The utility model provides a material shifting device for a storage cabinet and the storage cabinet, and belongs to the technical field of tobacco processing. The problem that storage cabinet tailing discharging is not smooth is solved. The material stirring device for the storage cabinet comprises a base, a sliding assembly, a material stirring roller and a driving device. The base is arranged on the storage cabinet and close to a bottom belt of the storage cabinet. The sliding assembly is arranged on the base. The sliding assembly can move on the base in the first direction so as to be close to or away from the bottom belt. The material stirring roller is rotatably arranged on the sliding assembly. The material stirring roller can move along with the sliding assembly. The driving device is connected to the material stirring roller. The driving device can drive the material stirring roller to rotate on the sliding assembly. By means of the material stirring device, the tailings on the bottom belt can be discharged more smoothly, the flow is more stable, and the phenomenon of material breakage in the follow-up production link can be effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco processing, and in particular relates to a material shifting device for a storage cabinet and the storage cabinet. Background Art

[0002] Storage cabinets are widely used in the tobacco production industry. Their main function is to buffer and transport materials. When the storage cabinet is unloading, the bottom belt and the feed roller cooperate to evenly transport the materials to the discharge end. The materials have the characteristic of piling up on the bottom belt. When the unloading process runs to the tailings, the material on the bottom belt is reduced, which cannot meet the flow requirements in the production process. Therefore, the bottom belt running speed needs to be increased. However, since the distance between the feed roller rake nails and the bottom belt surface is relatively close, when the material is reduced, the rake nails will hinder the unloading, causing the material to remain on the bottom belt, resulting in unsmooth discharge of the tailings, which affects the subsequent production links. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to provide a material-dispensing device for a storage cabinet and a storage cabinet, which can make the tail material discharge smoother and the flow rate more stable.

[0004] In order to solve the above problems, the utility model provides a material-dispensing device for a storage cabinet, comprising: a base, a sliding assembly, a material-dispensing roller and a driving device. The base is arranged on the storage cabinet and close to the bottom belt of the storage cabinet. The sliding assembly is arranged on the base. The sliding assembly can move along a first direction on the base to approach or move away from the bottom belt. The material-dispensing roller is rotatably arranged on the sliding assembly. The material-dispensing roller can move with the sliding assembly. The driving device is connected to the material-dispensing roller. The driving device can drive the material-dispensing roller to rotate on the sliding assembly.

[0005] Optionally, there are two sliding assemblies, which are symmetrically arranged on both sides of the bottom belt, and the material-picking roller is arranged between the two sliding assemblies and straddles the bottom belt.

[0006] Optionally, the sliding assembly includes: a guide rail, a sliding platform and a driving assembly. The guide rail is arranged on the base. The guide rail extends along the first direction. The sliding platform is arranged on the guide rail. The material-picking roller is rotatably mounted on the sliding platform. The driving assembly is connected to the sliding platform. The driving assembly can drive the sliding platform to move along the guide rail.

[0007] Optionally, the sliding assembly further comprises: a pair of limit switches, respectively arranged at two ends of the guide rail. The pair of limit switches is used to limit the extreme position of the sliding platform.

[0008] Optionally, the driving assembly includes: a screw hole, a lead screw and a motor. The screw hole is arranged on the sliding platform. The lead screw is connected to the screw hole by a thread. The output end of the motor is connected to the lead screw. The motor drives the lead screw to rotate, thereby driving the sliding platform to move along the guide rail.

[0009] Optionally, the material feeding roller comprises: a roller and a plurality of rows of rake nails. The roller is rotatably mounted on the sliding assembly. The plurality of rows of rake nails are distributed on the side of the roller. Each row of rake nails is arranged along the axial direction of the roller, and the arrangement track of each row of rake nails has an arc.

[0010] Optionally, baffles are provided at both ends of the material-dispensing roller. The baffles are located on both sides of the bottom belt. The baffles are sealed and connected to the material-dispensing roller.

[0011] Optionally, the driving device includes: a reducer, and an output end of the reducer is connected to the material-moving roller.

[0012] The utility model also provides a storage cabinet, comprising: a storage cabinet body, a bottom belt and the material shifting device for the storage cabinet. The bottom belt is arranged at the lower part of the storage cabinet body. The material shifting device is located above the bottom belt and close to the tail of the bottom belt.

[0013] Optionally, it also includes: a passive material-digging roller and an active material-digging roller. The passive material-digging roller is arranged on the storage cabinet body. The passive material-digging roller is located above the material-digging device. The active material-digging roller is arranged on the storage cabinet body. The active material-digging roller is located between the passive material-digging roller and the material-digging device.

[0014] Beneficial Effects

[0015] 1. The material-dispensing device for a storage cabinet provided by the utility model comprises a base, a sliding assembly, a material-dispensing roller and a driving device. The base is arranged on the storage cabinet and is close to the bottom belt of the storage cabinet. The sliding assembly is arranged on the base. And it can move along the first direction on the base. The material-dispensing roller is arranged on the sliding assembly and can move along with the sliding assembly in the first direction to approach or move away from the bottom belt. The driving device is connected to the material-dispensing roller to drive the material-dispensing roller to rotate on the sliding assembly. When the material on the bottom belt is sufficient, the material-dispensing roller is located near the bottom belt, and the driving device drives the material-dispensing roller to rotate on the sliding assembly, so that the material-dispensing roller can break up the material and evenly distribute the material on the bottom belt. When the bottom belt runs to the tailing stage and there is less material on the bottom belt, the sliding assembly can drive the material-dispensing roller to move along the first direction, so that the material-dispensing roller is away from the bottom belt, so as to increase the distance between the material-dispensing roller and the bottom belt, and prevent the material-dispensing roller from obstructing the material on the bottom belt, so that the material accumulates on the bottom belt. The use of the material shifting device of the utility model can make the tail material on the bottom belt discharge more smoothly, the flow rate more stable, and can effectively avoid the phenomenon of material breakage in subsequent production links.

[0016] 2. The storage cabinet provided by the utility model includes a storage cabinet body, a bottom belt and the above-mentioned material-discharging device for the storage cabinet. The bottom belt is arranged at the lower part of the storage cabinet body. The material-discharging device is located above the bottom belt and close to the tail of the bottom belt. When the storage cabinet discharges materials to the tailing stage, the material-discharging roller of the material-discharging device can be driven by the sliding component to move away from the bottom belt to avoid the material-discharging roller hindering the material on the bottom belt. Therefore, the material discharging of the storage cabinet of the utility model can be more uniform and smooth, and can avoid the retention of materials on the bottom belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a material-dispensing device for a storage cabinet according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A magnified image of point A;

[0019] Figure 3 A structural schematic diagram of a storage cabinet according to an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the positional relationship between a material shifting device and a bottom belt according to an embodiment of the present utility model;

[0021] Figure 5 A schematic diagram of the structure of a passive material-selecting roller according to an embodiment of the utility model;

[0022] Figure 6 The present invention is a schematic structural diagram of an active material-feeding roller according to an embodiment of the present invention.

[0023] The reference numerals are:

[0024] 1. Material dispensing device; 2. Storage cabinet body; 3. Bottom belt; 4. Passive material dispensing roller; 5. Active material dispensing roller;

[0025] 11. Base; 12. Sliding assembly; 13. Material feeding roller; 14. Driving device; 15. Baffle; 16. Bearing seat;

[0026] 121. sliding platform; 122. driving assembly; 123. guide rail;

[0027] 1221, lead screw; 1222, motor;

[0028] 131, roller; 132, rake nail;

[0029] 41. Passive material feeding roller body;

[0030] 51. Main body of active material-feeding roller; 52. Driving motor. DETAILED DESCRIPTION

[0031] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated in the text is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0034] In a first aspect, this embodiment provides a material transferring device for a storage cabinet. Figure 1 A schematic diagram of the three-dimensional structure of a material transfer device for a storage cabinet provided in this embodiment.

[0035] like Figure 1 As shown, the material-dispensing device 1 for a storage cabinet of this embodiment comprises: a base 11, a sliding assembly 12, a material-dispensing roller 13 and a driving device 14. The base 11 is arranged on the storage cabinet and close to the bottom belt 3 of the storage cabinet. The sliding assembly 12 is arranged on the base 11. The sliding assembly 12 can move along a first direction on the base 11 to approach or move away from the bottom belt 3. The material-dispensing roller 13 is rotatably arranged on the sliding assembly 12. The material-dispensing roller 13 can move with the sliding assembly 12. The driving device 14 is connected to the material-dispensing roller 13. The driving device 14 can drive the material-dispensing roller 13 to rotate on the sliding assembly 12.

[0036] For some examples, see Figure 1 The sliding assembly 12 is connected to the base 11 by bolts. This arrangement facilitates the installation and removal of the sliding assembly 12. However, it should be noted that in other embodiments, the sliding assembly 12 and the base 11 may also be connected by other connection methods such as plugging, welding, etc., and this embodiment does not impose too many restrictions on this.

[0037] In some examples, such as Figure 1 As shown, a bearing seat 16 is provided on the sliding assembly 12, and the material-pick roller 13 is installed in the bearing seat 16. Such an arrangement can make the material-pick roller 13 rotate more smoothly.

[0038] The material-dispensing device 1 for a storage cabinet of the present embodiment comprises a base 11, a sliding assembly 12, a material-dispensing roller 13 and a driving device 14. The base 11 is arranged on the storage cabinet and is close to the bottom belt 3 of the storage cabinet. The sliding assembly 12 is arranged on the base 11. And it can move along the first direction on the base 11. The material-dispensing roller 13 is arranged on the sliding assembly 12, and can move along the sliding assembly 12 in the first direction to approach or move away from the bottom belt 3. The driving device 14 is connected to the material-dispensing roller 13 to drive the material-dispensing roller 13 to rotate on the sliding assembly 12. When the material on the bottom belt 3 is sufficient, the material-dispensing roller 13 is located close to the bottom belt 3, and the driving device 14 drives the material-dispensing roller 13 to rotate on the sliding assembly 12, so that the material-dispensing roller 13 can break up the material and evenly distribute the material on the bottom belt 3. When the bottom belt 3 runs to the tailing stage and there is less material on the bottom belt 3, the sliding assembly 12 can drive the material-dispensing roller 13 to move along the first direction, so that the material-dispensing roller 13 is away from the bottom belt 3, so as to increase the distance between the material-dispensing roller 13 and the bottom belt 3, and prevent the material-dispensing roller 13 from obstructing the material on the bottom belt 3, so that the material is accumulated on the bottom belt 3. The use of the material-dispensing device 1 of the utility model can make the tailing material on the bottom belt 3 discharge more smoothly, the flow rate more stable, and can effectively avoid the phenomenon of material shortage in the subsequent production links.

[0039] In some embodiments, Figure 1 As shown, there are two sliding assemblies 12. The two sliding assemblies 12 are symmetrically arranged on both sides of the bottom belt 3. The material-picking roller 13 is arranged between the two sliding assemblies 12 and spans the bottom belt 3.

[0040] In some examples, such as Figure 1 As shown, both ends of the material-pick roller 13 are respectively arranged on two sliding components 12, and the driving device 14 is connected to one end of the material-pick roller 13, driving the material-pick roller 13 to rotate on the two sliding components 12. Such an arrangement can make the material-pick roller 13 more stable during the rotation process and effectively reduce vibration.

[0041] The material-moving roller 13 of this embodiment is mounted between the two sliding components 12 and spans the bottom belt 3 , which can effectively disperse and homogenize the material on the bottom belt 3 , and the rotation process is more stable.

[0042] Figure 2 for Figure 1 In some embodiments, as Figure 1 and Figure 2 As shown, the sliding assembly 12 includes: a guide rail 123, a sliding platform 121 and a driving assembly 122. The guide rail 123 is arranged on the base 11. The guide rail 123 extends along the first direction. The sliding platform 122 is arranged on the guide rail 123. The material-pickup roller 13 is rotatably mounted on the sliding platform 121. The driving assembly 122 is connected to the sliding platform 121. The driving assembly 122 can drive the sliding platform 121 to move along the guide rail 123.

[0043] In some examples, such as Figure 1 and Figure 2 As shown, the sliding assembly 12 of this embodiment adopts a double rail structure, and the rail 123 is rod-shaped. A pair of through holes are provided on the sliding platform 121, and the sliding platform 121 is sleeved on the pair of rails 123 through the pair of through holes and can slide on the pair of rails 123. Such a configuration can make the sliding process of the sliding platform 121 more stable.

[0044] The sliding assembly 12 of this embodiment includes a guide rail 123, a sliding platform 121 and a driving assembly 122. The driving assembly 122 can drive the sliding platform 121 to move along the guide rail 123, thereby driving the material-moving roller 13 to move along the first direction, and has a simple structure and stable operation.

[0045] In some embodiments, see Figure 1 The sliding assembly 12 further includes: a pair of limit switches, which are respectively arranged at both ends of the guide rail 123. The pair of limit switches are used to limit the extreme position of the sliding platform 121.

[0046] The sliding assembly 12 of this embodiment also includes a pair of limit switches, which are located at both ends of the guide rail 123. When the sliding platform 121 moves to the end close to the guide rail 123, the limit switches can be triggered to prevent the sliding platform 121 from sliding off the guide rail 123 or colliding with other nearby structures.

[0047] In some embodiments, Figure 2 As shown, the driving assembly 122 includes: a screw hole, a lead screw 1221 and a motor 1222. The screw hole is set on the sliding platform 121. The lead screw 1221 is connected to the screw hole by a thread. The output end of the motor 1222 is connected to the lead screw 1221. The motor 1222 drives the lead screw 1221 to rotate, thereby driving the sliding platform 121 to move along the guide rail 123.

[0048] In some examples, such as Figure 2 As shown, the lead screw 1221 is parallel to the guide rail 123 and is located between a pair of guide rails 123. This arrangement can make the sliding platform 121 more evenly stressed and run more smoothly.

[0049] The driving assembly 122 of this embodiment utilizes the lead screw 1221 to drive the sliding platform 121 to move, and has stable operation, simple structure, durability and is conducive to reducing production costs.

[0050] In some embodiments, Figure 1As shown, the material feeding roller 13 comprises: a roller 131 and a plurality of rows of rake nails 132. The roller 131 is rotatably mounted on the sliding assembly 12. The plurality of rows of rake nails 132 are distributed on the side of the roller 131. Each row of rake nails 132 is arranged along the axial direction of the roller 132, and the arrangement track of each row of rake nails 132 has an arc.

[0051] In some examples, such as Figure 1 As described above, the roller 131 has three rows of rake nails 132. The three rows of rake nails 132 are evenly distributed on the outer periphery of the roller 131. The arrangement track of each row of rake nails 132 has an arc at the middle of the roller 131. Such an arrangement is conducive to breaking up and evenly dispersing the material.

[0052] In some examples, such as Figure 1 As shown, the end of the rake nail 132 away from the roller 131 has a certain bending angle. Such an arrangement can entrain the material in the process of breaking up the material, lift the material to a certain height, which is conducive to further homogenizing the material.

[0053] The material discharging roller 13 of this embodiment includes a roller 131 and multiple rows of rake nails 132. The driving device 14 drives the roller 131 to rotate, thereby driving the rake nails 132 to rotate, which can effectively break up and homogenize the accumulated materials and make the discharge of the storage cabinet more uniform.

[0054] In some embodiments, Figure 1 As shown, baffles 15 are provided at both ends of the material-pickup roller 13. The baffles 15 are located at both sides of the bottom belt 3. The baffles 15 and the material-pickup roller 13 are sealed and connected.

[0055] For some examples, see Figure 1 The end of the material-dispensing roller 13 passes through the baffle 15 and is connected to the sliding assembly 12. The baffle 15 can move with the material-dispensing roller 13, but does not rotate with the material-dispensing roller 13. A sealing ring is provided between the baffle 15 and the material-dispensing roller 13. Such an arrangement can improve the sealing between the baffle 15 and the material-dispensing roller 13 and prevent the material from leaking out.

[0056] In this embodiment, baffles 15 are provided at both ends of the material-discharging roller 13 , and the baffles 15 are located on both sides of the bottom belt 3 , which can ensure that no material leakage occurs when the material-discharging roller 13 moves with the sliding assembly 12 .

[0057] In some embodiments, Figure 1 As shown, the driving device 14 includes a reducer, and the output end of the reducer is connected to the material-moving roller 13.

[0058] The driving device 14 of this embodiment is connected to the material-moving roller 13 via a speed reducer, which can make the rotation of the material-moving roller 13 more stable and have a greater torque.

[0059] In a second aspect, this embodiment also provides a storage cabinet. Figure 3 This is a schematic diagram of the structure of a storage cabinet provided in this embodiment. Figure 4 A schematic diagram of the positional relationship between a material shifting device and a bottom belt provided in this embodiment.

[0060] like Figure 3 and Figure 4 As shown, the storage cabinet of this embodiment includes: a storage cabinet body 2, a bottom belt 3 and the above-mentioned material shifting device 1 for the storage cabinet. The bottom belt 3 is arranged at the lower part of the storage cabinet body 2. The material shifting device 1 is located above the bottom belt 3 and close to the tail of the bottom belt 3.

[0061] In some examples, such as Figure 4 As shown, the first direction is parallel to the material conveying direction of the bottom belt 3. When the bottom belt 3 runs to the tailing stage and there is less material on the bottom belt 3, the sliding assembly 12 can drive the material-dispensing roller 13 to move along the first direction until the material-dispensing roller 13 is away from the tail of the bottom belt 3. It should be noted that in other embodiments, the first direction can also be a direction perpendicular to the bottom belt 3, or a direction obliquely above the bottom belt 3, as long as it does not interfere with other components on the storage cabinet.

[0062] The storage cabinet of this embodiment includes a storage cabinet body 2, a bottom belt 3 and a material-discharging device 1 for the storage cabinet in the above-mentioned embodiment. The bottom belt 3 is arranged at the lower part of the storage cabinet body 2. The material-discharging device 1 is located above the bottom belt 3 and close to the tail of the bottom belt 3. When the storage cabinet discharges materials to the tailing stage, the material-discharging roller 13 of the material-discharging device 1 can be driven by the sliding component 12 to move away from the bottom belt 3, so that the material-discharging roller 13 does not hinder the discharge of materials on the bottom belt 3. Therefore, the discharge of the storage cabinet of the utility model can be more uniform and smooth, and can avoid the retention of materials on the bottom belt.

[0063] In some embodiments, Figure 3 As shown, the storage cabinet of this embodiment further includes: a passive material-pickling roller 4 and an active material-pickling roller 5. The passive material-pickling roller 4 is arranged on the storage cabinet body 2. The passive material-pickling roller 4 is located above the material-pickling device 1. The active material-pickling roller 5 is arranged on the storage cabinet body 2. The active material-pickling roller 5 is located between the passive material-pickling roller 4 and the material-pickling device 1.

[0064] Figure 5 A schematic diagram of the structure of a passive material-feeding roller provided in this embodiment. Figure 3 and Figure 5 As shown, the passive material-digging roller 4 includes a passive material-digging roller body 41, which is rotatably installed above the storage cabinet body 2. It can rotate with the falling materials to preliminarily break up and homogenize the materials.

[0065] Figure 6 A schematic diagram of the structure of an active material-feeding roller provided in this embodiment. Figure 3 and Figure 6 As shown, the active material-digging roller 5 includes an active material-digging roller body 51 and a driving motor 52. The active material-digging roller body 51 is rotatably installed in the middle of the storage cabinet body 2 and is located between the passive material-digging roller 4 and the material-digging device 1. The driving motor 52 drives the active material-digging roller body 51 to rotate, and further scatters the materials.

[0066] In some examples, such as Figure 3 As shown, the passive material-digging roller 4, the active material-digging roller 5 and the material-digging device 1 are arranged in the vertical direction and gradually tilted toward the tail of the bottom belt 3. Such an arrangement can adapt to the shape of the accumulated materials and is conducive to the dispersion and homogenization of the materials.

[0067] The storage cabinet of this embodiment also includes a passive material dispensing roller 4 and an active material dispensing roller 5. Through the cooperation of the passive material dispensing roller 4, the active material dispensing roller 5 and the material dispensing device 1, the material can be evenly distributed on the bottom belt 3, so that the storage cabinet can discharge the material more evenly.

[0068] It is easy for those skilled in the art to understand that the above-mentioned advantageous methods can be freely combined and superimposed without conflict.

[0069] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred implementations of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A material transfer device for a storage cabinet, characterized in that: include: A base, disposed on the storage cabinet and close to the bottom belt of the storage cabinet; A sliding assembly is disposed on the base; the sliding assembly can move along a first direction on the base to approach or move away from the bottom belt; A material-moving roller is rotatably arranged on the sliding assembly; The material-moving roller can move along with the sliding assembly; A driving device connected to the material-moving roller; The driving device can drive the material-moving roller to rotate on the sliding assembly.

2. The material dispensing device for a storage cabinet according to claim 1, characterized in that: There are two sliding components; the two sliding components are symmetrically arranged on both sides of the bottom belt; The material-moving roller is arranged between the two sliding components and straddles the bottom belt.

3. The material dispensing device for a storage cabinet according to claim 1, characterized in that: The sliding assembly comprises: A guide rail is arranged on the base; the guide rail extends along the first direction; A sliding platform is arranged on the guide rail; the material-pickling roller is rotatably mounted on the sliding platform; A driving assembly is connected to the sliding platform; the driving assembly can drive the sliding platform to move along the guide rail.

4. The material dispensing device for a storage cabinet according to claim 3, characterized in that: The sliding assembly also includes: A pair of limit switches are respectively arranged at two ends of the guide rail; the pair of limit switches are used to limit the extreme positions of the sliding platform.

5. The material dispensing device for a storage cabinet according to claim 3, characterized in that: The drive assembly comprises: A screw hole is provided on the sliding platform; A lead screw connected to the screw hole through threads; A motor, wherein the output end of the motor is connected to the lead screw; the motor drives the lead screw to rotate, thereby driving the sliding platform to move along the guide rail.

6. The material dispensing device for a storage cabinet according to claim 1, characterized in that: The feeding roller comprises: A roller rotatably mounted on the sliding assembly; A plurality of rows of rake nails are distributed on the side surface of the roller; each row of the rake nails is arranged along the axial direction of the roller, and the arrangement track of each row of the rake nails has an arc.

7. The material dispensing device for a storage cabinet according to claim 1, characterized in that: Baffles are provided at both ends of the material-moving roller; the baffles are located at both sides of the bottom belt; and the baffles are sealed and connected to the material-moving roller.

8. The material dispensing device for a storage cabinet according to claim 1, characterized in that: The driving device comprises: A speed reducer, wherein the output end of the speed reducer is connected to the material-moving roller.

9. A storage cabinet, characterized in that: include: Storage cabinet body; A bottom belt, arranged at the lower part of the storage cabinet body; The material dispensing device for a storage cabinet as claimed in any one of claims 1 to 8 is located above the bottom belt and close to the tail of the bottom belt.

10. The storage cabinet according to claim 9, characterized in that Also includes: A passive material-moving roller is arranged on the storage cabinet body; The passive material-discharging roller is located above the material-discharging device; An active material-moving roller is arranged on the storage cabinet body; The active material-digging roller is located between the passive material-digging roller and the material-digging device.

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