Discharging device
By combining the design of the feeding turntable and the drive roller, the problem of external surface defects caused by impact during battery transportation is solved, thus achieving stable transportation and protection of the batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-24
AI Technical Summary
During battery assembly, batteries may develop defects such as dents and scratches on their outer surface due to mutual impacts during transportation.
The design employs a combination of a feeding turntable, a transition component, and a drive roller. The feeding turntable transfers batteries one by one to the transition channel. After the batteries decelerate in the transition channel, they are driven by the drive roller to move along the feeding channel, reducing the collision force and friction between the batteries.
This effectively avoids dents and scratches on the outer surface of the battery, improving the battery's delivery quality.
Smart Images

Figure CN224030104U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of battery manufacturing equipment, in particular to a discharging device. BACKGROUND
[0002] In the battery assembly production process, a plurality of processes are included, such as shell entering, tab welding, top cover welding and the like. Each process is completed at different stations. After a corresponding process is completed at a station, the battery enters a discharging device, and the posture of the battery is adjusted by the discharging device, for example, the battery in an upright state is adjusted to a lying state, and then the battery in the lying state is transported to a downstream station.
[0003] Traditionally, the batteries are transported one by one to the inlet of the spiral channel, and the front battery is extruded by the rear battery at the inlet of the spiral channel, so that the front battery is extruded into the spiral channel. However, in the actual production process, due to the impact between the front and rear batteries, defects such as dents and scratches on the outer surface of the battery are caused. CONTENT OF THE UTILITY MODEL
[0004] Therefore, it is necessary to provide a discharging device which can avoid defects such as dents and scratches on the outer surface of the battery caused by impact.
[0005] A discharging device comprises:
[0006] A feeding turntable having a plurality of bayonets arranged at intervals in the circumferential direction;
[0007] A channel assembly having a feeding channel; and
[0008] A transition assembly comprising a transition channel, a first stop block, a driving roller and a driving member, the transition channel being located between the feeding turntable and the inlet of the feeding channel, the first stop block having a wall surface as a side wall of the transition channel and a through hole penetrating the wall surface, the driving roller being rotationally connected to the first stop block and partially entering the transition channel through the through hole, and the driving member being installed on the first stop block and connected with the driving roller.
[0009] In some embodiments, the transition assembly further comprises a swing shaft, a swing block, a rotating shaft and an elastic member, the swing shaft being rotationally connected to the first stop block, the swing block being installed on the swing shaft, the rotating shaft being rotationally connected to the swing block, the driving roller being installed on the rotating shaft and located on the side of the first stop block away from the wall surface, and the elastic member having two ends respectively connected with the swing block and the first stop block for providing a movement tendency of the swing block to drive the driving roller to pass through the through hole.
[0010] In some embodiments, the elastic member is a tension spring.
[0011] In some embodiments, the driving roller is a one-way roller.
[0012] In some embodiments, the transition assembly further comprises an abutting member, which is rotationally connected to the rotating shaft and abuts against the first stopper on a side away from the wall surface under the elastic force of the elastic member.
[0013] In some embodiments, the transition assembly further comprises a first connecting rod connected to the swing block and a second connecting rod connected to the first stopper, and the elastic member has hooks at both ends, which are respectively hooked on the first connecting rod and the second connecting rod.
[0014] In some embodiments, the driving roller is externally sleeved with an elastic layer.
[0015] In some embodiments, the transition assembly further comprises a second stopper, the wall surface of the first stopper faces the second stopper, and the transition passage is formed between the first stopper and the second stopper.
[0016] In some embodiments, the transition assembly further comprises a support arranged at the bottom of the transition passage.
[0017] In some embodiments, the discharging device further comprises a rotating driving assembly, which comprises a rotating driving member and a gear set drivingly connected between the rotating driving member and the material conveying turntable.
[0018] In the actual application process of the above-mentioned discharging device, the material conveying turntable rotates around its own axis, so that the batteries are transferred into the transition passage one by one by the bayonet. The batteries entering the transition passage gradually slow down along the transition passage and move until they contact the driving roller (at this time, the driving roller continuously or intermittently rotates under the driving of the driving member), so that the batteries continue to move along the transition passage to the inlet of the material conveying passage downstream under the driving of the driving roller, until they are separated from the driving roller. The batteries separated from the driving roller continue to move to the inlet of the material conveying passage under the pushing of the following batteries, until they enter the material conveying passage. In the above-mentioned manner, the batteries are sent into the material conveying passage one by one, and the batteries entering the conveying passage continue to move along the material conveying passage to the downstream conveying line, that is, the discharging of the batteries is realized one by one.
[0019] Thus, the battery following the feeding carousel in high speed enters the transition channel and gradually slows down due to the loss of power, and then moves to the downstream feeding channel under the driving effect of the driving roller, thereby pushing the front battery into the feeding channel. Since the speed difference between the front and rear batteries is small when the rear battery pushes the front battery, the collision force between the batteries is greatly reduced, and the friction force between the battery and the channel wall is also greatly reduced, thereby avoiding defects such as pits and scratches on the outer surface of the battery. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is a top view of the discharging device in an embodiment of the present application;
[0021] Figure 2 is a structure schematic view of the discharging device shown in FIG. 1; Figure 1
[0022] Figure 3 is a structure schematic view of the discharging device shown in FIG. 2; Figure 1
[0023] Figure 4 is a structure schematic view of the transition assembly of the discharging device shown in FIG. 3; Figure 1
[0024] Figure 5 is a structure schematic view of the transition assembly of the discharging device shown in FIG. 4 from another perspective. Figure 1 DETAILED DESCRIPTION
[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below in conjunction with the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.
[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0027] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or a number of the indicated technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.
[0028] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0029] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0030] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes, and do not represent the only embodiment.
[0031] Please refer to Figures 1 to 3The application provides a discharging device, which comprises a feeding rotary disc 10, a channel assembly 20 and a transition assembly 30. The feeding rotary disc 10 has a plurality of bayonets 11 arranged at intervals in the circumferential direction, which are used for accommodating batteries A. When the feeding rotary disc 10 rotates, the batteries A accommodated in the bayonets 11 rotate together with the feeding rotary disc 10, so that the batteries A are transferred. The channel assembly 20 has a feeding channel 21, which is used for allowing the batteries A to pass through. The transition assembly 30 comprises a transition channel 31, a first stopper 32, a driving roller 33 and a driving member 36. The transition channel 31 is located between the feeding rotary disc 10 and the entrance of the feeding channel 21, so that, during the rotation of the feeding rotary disc 10, the batteries A reaching the transition channel 31 together with the bayonets 11 enter the transition channel 31, and then enter the entrance of the feeding channel 21 from the transition channel 31, and finally are conveyed downstream along the feeding channel 21.
[0032] The first stopper 32 has a wall surface 321 serving as a side wall of the transition channel 31 and a through hole 323 penetrating through the wall surface 321. The driving roller 33 is rollingly connected to the first stopper 32, and the driving roller 33 partially enters the transition channel 31 through the through hole 323, so that the batteries A entering the transition channel 31 continue to move downstream under the driving of the driving roller 33. The driving member 36 is installed on the first stopper 32 and connected to the driving roller 33, so that the driving member 36 can drive the driving roller 33 to rotate.
[0033] In the actual application process of the above-mentioned discharging device, the feeding rotary disc 10 rotates around its own axis, so that the batteries A are transferred into the transition channel 31 one by one by the bayonets 11. The batteries A entering the transition channel 31 gradually decelerate along the transition channel 31 and are in contact with the driving roller 33 (at this time, the driving roller 33 continuously or intermittently rotates under the driving of the driving member 36), so that the batteries A continue to move along the transition channel 31 to the entrance of the feeding channel 21 downstream under the driving of the driving roller 33, and then are separated from the driving roller 33. The batteries A separated from the driving roller 33 continue to move to the entrance of the feeding channel 21 under the pushing of the following batteries A, and then enter the feeding channel 21. In the above-mentioned way, the batteries A are sent into the feeding channel 21 one by one, and the batteries A entering the feeding channel 21 continue to move along the feeding channel 21 to the downstream conveying line, that is, the batteries A are discharged one by one.
[0034] Thus, the battery A following the feeding turntable 10 enters the transition passage 31 and gradually slows down due to the loss of power, and then moves downstream to the feeding passage 21 under the driving effect of the driving roller 33, and further pushes the front battery A into the feeding passage 21. Since the speed difference between the front and rear batteries A is small when the rear battery A pushes the front battery A, the collision force between the batteries A is greatly reduced, and the friction force between the battery A and the inner wall of the passage is also greatly reduced, thereby avoiding defects such as dents and scratches on the outer surface of the battery A.
[0035] It should be noted that the material to be discharged in the embodiment is a battery A. Of course, in other embodiments, the material to be discharged can also be other products, which are not limited herein. For ease of understanding, the material is taken as an example of a battery A in this paper.
[0036] It should be further noted that the battery A passes through the feeding turntable 10 and the transition passage 31 in a vertical state, and reaches the inlet of the feeding passage 21, and then enters the feeding passage 21 under the pushing effect of the rear battery A. The feeding passage 21 can be arranged in a spiral shape, so that the battery A gradually deflects from a vertical state to a horizontal state under the limiting effect of the feeding passage 21 during movement along the feeding passage 21, ensuring that the battery A output from the outlet of the feeding passage 21 is in a horizontal state. Further, the inlet of the feeding passage 21 is higher than the outlet of the feeding passage 21, so that the battery A entering the feeding passage 21 from the inlet of the feeding passage 21 can move along the feeding passage 21 under the action of its own gravity until it is output from the outlet of the feeding passage 21.
[0037] Further, the passage assembly 20 includes a plurality of stop edges, and the feeding passage 21 is formed by surrounding the plurality of stop edges. The shape and assembly structure of each stop edge are not limited as long as the feeding passage 21 with the required shape can be formed.
[0038] In the embodiment, the transition assembly 30 further includes a second stop block (not shown), which is arranged between the feeding turntable 10 and the inlet of the feeding passage 21, and the wall surface 321 of the first stop block 32 faces the second stop block. The first stop block 32 and the second stop block are spaced apart to form the above-mentioned transition passage 31. Thus, when the battery A following the feeding turntable 10 rotates to the inlet of the transition passage 31 between the first stop block 32 and the second stop block, the battery A enters the transition passage 31 and moves along the transition passage 31 towards the inlet of the feeding passage 21 under the limiting effect of the first stop block 32 and the second stop block.
[0039] In the embodiment, the transition assembly 30 further includes a support 311 (see Figure 3), the battery A entering into the transition passage 31 is supported by the support member 311. In this way, the battery A entering into the transition passage 31 is supported by the support member 311 and can only move along the transition passage 31 towards the inlet of the feeding passage 21 under the limiting effect of the first stopper 32 and the second stopper.
[0040] Please refer to Figures 3 to 5 In the embodiment of the present application, the transition assembly 30 further comprises a swing shaft 38, a swing block 37, a rotating shaft 34 and an elastic member 39. The swing shaft 38 is rotationally connected to the first stopper 32, and the swing block 37 is installed on the swing shaft 38, so that the swing shaft 38 can drive the swing block 37 to swing around the axis of the swing shaft 38 when the swing shaft 38 rotates. The rotating shaft 34 is rotationally connected to the swing block 37, and the driving roller 33 is installed on the rotating shaft 34 and located on the side of the first stopper 32 away from the wall surface 321. The elastic member 39 is connected to the swing block 37 and the first stopper 32 at two ends respectively, and is used to provide the swing block 37 with a tendency to drive the driving roller 33 to pass through the through hole 323. Optionally, the elastic member 39 can be a tension spring.
[0041] In this way, after the battery A enters into the transition passage 31, it moves along the transition passage 31 towards the inlet of the feeding passage 21 under the driving of the driving roller 33. During the process of the battery A passing through the driving roller 33 in the transition passage 31, the battery A will press against the driving roller 33 due to the limitation of the transition passage 31, so that the driving roller 33 moves towards the direction of exiting the transition passage 31 through the through hole 323, thereby driving the swing block 37 to swing around the axis of the swing shaft 38 against the elastic force of the elastic member 39 through the rotating shaft 34. On the one hand, it ensures that the battery A can maintain a pressing relationship with the driving roller 33 when passing through the driving roller 33, so as to ensure that the static friction between the battery A and the driving roller 33 is large enough, thereby enabling the driving roller 33 to rotate and drive the battery A to move along the transition passage 31 towards the inlet of the feeding passage 21; on the other hand, it ensures that the battery A can pass between the driving roller 33 and the second stopper, avoiding the battery A from being stuck between the driving roller 33 and the second stopper.
[0042] It can be understood that when a battery A passes through the driving roller 33, the driving roller 33 rotates and drives the battery A to pass between the driving roller 33 and the second stopper, and at the same time the driving roller 33 moves towards the direction of exiting the transition passage 31 through the through hole 323 under the extrusion of the battery A. When no battery A passes through the driving roller 33, the driving roller 33 moves towards the direction of entering the transition passage 31 through the through hole 323 under the elastic force of the elastic member 39 and is reset, waiting for the arrival of the next battery A.
[0043] Specifically, the transition assembly 30 further comprises a first connecting rod 391 and a second connecting rod 392. The first connecting rod 391 is connected to the swing block 37, and the second connecting rod 392 is connected to the first stop block 32. The elastic member 39 has hooks at two ends, and the two ends of the elastic member 39 are respectively hooked on the first connecting rod 391 and the second connecting rod 392, so that when the drive roller 33 moves towards the direction of entering the transition passage 31, the stretching amount of the elastic member 39 decreases, and when the drive roller 33 moves towards the direction of exiting the transition passage 31, the stretching amount of the elastic member 39 increases. Optionally, the first connecting rod 391 and the second connecting rod 392 can be bolts.
[0044] Optionally, the swing shaft 38 can be installed on the first stop block 32 through a bearing, so that when the drive roller 33 is extruded by the battery A, the swing shaft 38 can rotate relative to the first stop block 32 against the elastic force of the elastic member 39; when the extrusion of the battery A on the drive roller 33 disappears, the swing shaft 38 can be reset by reversely rotating relative to the first stop block 32 under the elastic force of the elastic member 39.
[0045] Optionally, the rotating shaft 34 can also be installed on the swing block 37 through a bearing, and the rotating shaft 34 and the output shaft of the driving member 36 can be connected through a shaft coupling, so that the driving member 36 can drive the rotating shaft 34 to rotate relative to the swing shaft 38, thereby driving the drive roller 33 to rotate.
[0046] Optionally, the transition assembly 30 further comprises a heat sink 361 installed on the driving member 36, so as to dissipate heat of the driving member 36 and avoid excessive temperature of the driving member 36.
[0047] Specifically, the transition assembly 30 further comprises an abutting member 35 rotatably connected to the rotating shaft 34 and abutting against the side of the first stop block 32 away from the wall surface 321 under the elastic force of the elastic member 39. In this way, when there is no battery A passing through the drive roller 33, the swing block 37 drives the drive roller 33 to move towards the transition passage 31 through the through hole 323 under the elastic force of the elastic member 39 until the abutting member 35 abuts against the first stop block 32. When there is a battery A passing through the drive roller 33, the drive roller 33 moves towards the direction of exiting the transition passage 31 against the elastic force of the elastic member 39 under the extrusion of the battery A, and drives the abutting member 35 to separate from the first stop block 32.
[0048] It should be noted that, on the one hand, since the abutting member 35 can rotate relative to the rotating shaft 34, the abutting member 35 will not prevent the rotating shaft 34 from driving the drive roller 33 to rotate when the abutting member 35 abuts against the first stop block 32; on the other hand, the abutting member 35 abuts against the first stop block 32, thereby avoiding the drive roller 33 from being prevented from rotating due to direct contact with the first stop block 32.
[0049] In the embodiment, the driving roller 33 can be a one-way roller. For the purpose of illustration, the rotation direction of the driving roller 33 when the battery A moves along the transition channel 31 towards the inlet of the material conveying channel 21 is named as the forward direction, and the forward rotation of the driving roller 33 is the clockwise rotation shown in FIG. 3. Since the driving roller 33 is a one-way roller, the driving roller 33 can rotate forward relative to the rotation shaft 34, but cannot rotate reverse relative to the rotation shaft 34. In this way, if the moving speed of the battery A reaching the driving roller 33 is greater than the linear speed at the contact position between the driving roller 33 and the battery A, the battery A continues to move along the transition channel 31 towards the inlet of the material conveying channel 21, and drives the driving roller 33 to rotate forward relative to the rotation shaft 34. If the moving speed of the battery A reaching the driving roller 33 is less than the linear speed at the contact position between the driving roller 33 and the battery A, the battery A continues to move along the transition channel 31 towards the inlet of the material conveying channel 21 under the driving of the driving roller 33, and the driving roller 33 rotates forward synchronously with the rotation shaft 34 at this time. That is, the driving roller 33 is a one-way roller, which on the one hand does not hinder the movement of the battery A along the transition channel 31 towards the inlet of the material conveying channel 21 when the moving speed of the battery A is relatively large, and on the other hand drives the battery A to move along the transition channel 31 towards the inlet of the material conveying channel 21 when the moving speed of the battery A is relatively small. Figure 3 In the embodiment, the outer side of the driving roller 33 is sleeved with an elastic layer, which is used to contact the passing battery A. On the one hand, the elastic layer plays a role of protecting the surface of the battery A to avoid scratching the surface of the battery A, and on the other hand, the elastic layer also plays a role of anti-skid to avoid relative sliding between the battery A and the driving roller 33. Alternatively, the elastic layer can be a rubber layer, or other materials can be used as long as the roles of protecting the battery A and anti-skid can be played, which are not limited herein.
[0050] It should be noted that the number of the driving roller 33 is not limited to one. In other embodiments, the number of the driving roller 33 can be multiple (i.e. two or more). The multiple driving rollers 33 are installed on the rotation shaft 34 and are arranged in the axial direction of the rotation shaft 34. The number of the through holes 323 on the wall surface 321 of the first blocking piece 32 is the same as the number of the driving rollers 33, and the multiple through holes 323 are arranged in one-to-one correspondence with the multiple driving rollers 33, so that the multiple driving rollers 33 pass into the transition channel 31 through the respective corresponding through holes 323, thereby driving the passing battery A to move along the transition channel 31 towards the inlet of the material conveying channel 21 by the multiple driving rollers 33.
[0051]
[0052] In the embodiments of the present application, the blanking device further comprises a rotary driving assembly, which comprises a rotary driving member and a gear set. The gear set is drivingly connected between the rotary driving member and the material conveying turntable 10, and is configured to transmit the rotary motion output by the rotary driving member to the material conveying turntable 10, so that the rotary driving member can drive the material conveying turntable 10 to rotate. Optionally, the rotary driving member can be an electric motor. As for the structure of the gear set, it is not limited as long as the power transmission can be achieved.
[0053] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but it should be considered that any combination of the technical features is within the scope of the present disclosure, as long as the combination does not result in contradictions.
[0054] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.
Claims
1. A feeding device, characterized in that, include: The material conveying turntable (10) has multiple slots (11) arranged at intervals along the circumference; Channel assembly (20) having a material conveying channel (21); and The transition component (30) includes a transition channel (31), a first stop (32), a drive roller (33), and a drive member (36). The transition channel (31) is located between the material conveying turntable (10) and the entrance of the material conveying channel (21). The first stop (32) has a wall surface (321) that serves as one side wall of the transition channel (31) and a through hole (323) that penetrates the wall surface (321). The drive roller (33) is rotatably connected to the first stop (32) and partially enters the transition channel (31) through the through hole (323). The drive member (36) is mounted on the first stop (32) and connected to the drive roller (33).
2. The feeding device according to claim 1, characterized in that, The transition assembly (30) further includes a swing shaft (38), a swing block (37), a rotating shaft (34), and an elastic element (39). The swing shaft (38) is rotatably connected to the first stop (32). The swing block (37) is mounted on the swing shaft (38). The rotating shaft (34) is rotatably connected to the swing block (37). The drive roller (33) is mounted on the rotating shaft (34) and is located on the side of the first stop (32) away from the wall surface (321). The elastic element (39) has its two ends connected to the swing block (37) and the first stop (32) respectively, and is used to provide a tendency for the swing block (37) to drive the drive roller (33) through the through hole (323).
3. The feeding device according to claim 2, characterized in that, The elastic element (39) is a tension spring.
4. The feeding device according to claim 2, characterized in that, The drive roller (33) is a one-way roller.
5. The feeding device according to claim 2, characterized in that, The transition component (30) also includes an abutment (35), which is rotatably connected to the rotating shaft (34) and presses against the side of the first stop (32) away from the wall surface (321) under the elastic force of the elastic member (39).
6. The feeding device according to claim 2, characterized in that, The transition component (30) further includes a first connecting rod (391) and a second connecting rod (392). The first connecting rod (391) is connected to the swing block (37), and the second connecting rod (392) is connected to the first stop block (32). Both ends of the elastic member (39) have hooks, and both ends of the elastic member (39) are hooked onto the first connecting rod (391) and the second connecting rod (392) respectively through the hooks.
7. The feeding device according to claim 1, characterized in that, An elastic layer is fitted on the outer side of the drive roller (33).
8. The feeding device according to claim 1, characterized in that, The transition component (30) further includes a second stop, the wall surface (321) of the first stop (32) faces the second stop, and the transition channel (31) is formed between the first stop (32) and the second stop.
9. The feeding device according to claim 1, characterized in that, The transition component (30) also includes a support (311) disposed at the bottom of the transition channel (31).
10. The feeding device according to claim 1, characterized in that, The feeding device further includes a rotary drive assembly, which includes a rotary drive component and a gear set. The gear set is connected between the rotary drive component and the material conveying turntable (10).