Intelligent automatic assembly line feeding system

Abstract

The invention discloses an intelligent automatic assembly line feeding system, and belongs to the technical field of assembly line feeding, the intelligent automatic assembly line feeding system comprises a material guide mechanism assembled on an assembly line, a rack is assembled on one side of the material guide mechanism, a discharging mechanism is assembled on one side of the rack, and a feeding mechanism is assembled on the rack; by means of the feeding mechanism and the blocking unit, the inclined reset design of a spacing plate is matched with elastic constraint of a first torsional spring, three-face enclosure pressure is formed in cooperation with an upper sealing plate in the material conveying process, relative displacement of mixed particle materials on an inclined section is effectively limited, the separation effect caused by particle size and density differences is reduced, and the separation effect is improved. And meanwhile, a closed space is formed in cooperation with the upper sealing plate in the conveying period, so that the material storage unit formed when the partition plates are in the vertical state can receive more materials, the situation that the materials fall off when conveyed on the inclined section needs to be worried about, and the problem that the material loading amount is limited due to the arrangement of the inclined section of the conveyor is solved.

Description

Technical Field

[0001] The invention relates to the technical field of assembly line loading, and in particular to an intelligent automatic assembly line loading system. Background Art

[0002] Z-belt conveyors are commonly used for loading operations in assembly line operations. However, when Z-belt conveyors are used to convey mixed granular materials at an angle, segregation is easily caused due to differences in material particle size distribution and density. Compared with the stability of horizontal section conveying, different particles produce velocity gradients under the action of the gravity field during the inclined section conveying process, resulting in significant stratification of light fine particles and heavy coarse particles, which ultimately causes the uniformity of materials at the discharge port to be out of control. At the same time, restricted by the structure of the inclined section equipment, the storage unit formed by adjacent partitions has a critical capacity limitation during the filling process, which significantly restricts the stable conveying efficiency of materials in the Z-shaped conveying system. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that when a Z-shaped belt conveyor is used to transport mixed particulate materials at an angle, segregation is easily caused by differences in material particle size distribution and density. Compared with the stability of horizontal section transportation, different particles produce a velocity gradient under the action of the gravity field during the inclined section transportation, resulting in significant stratification of light fine particles and heavy coarse particles, which ultimately causes the material uniformity at the discharge port to be out of control. An intelligent automated assembly line loading system is proposed.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: An intelligent automatic assembly line feeding system comprises a material guiding mechanism installed on the assembly line, a frame is installed on one side of the material guiding mechanism, a material discharging mechanism is installed on one side of the frame, and a material loading mechanism is installed on the frame; The feeding mechanism comprises a mounting frame fixed on the frame, a conveyor belt is installed in the mounting frame through a roller shaft, a reduction motor for driving the roller shaft to rotate is installed on the outer wall of the mounting frame, a plurality of spacers are installed on the conveyor belt, and side blocks are sleeved on both sides of the outer surface of the conveyor belt, the outer wall and the mounting frame are fixed; The spacer comprises a base mounted on the conveyor belt, and two spacer plates are rotatably connected to the base so as to be relatively movable, so as to apply pressure to the mixed material after the spacer plates are tilted after the mixed material falls on the surface of the conveyor belt through the discharge mechanism; The side stopper is equipped with a blocking unit, and the blocking unit drives the partition plate rotated to an inclined state on one side to rotate to a vertical state.

[0005] As a further description of the above technical solution: The spacer also includes a T-shaped column groove opened on the two side walls of the base, a rotating column with one end fixed to the spacer plate is rotatably connected in the T-shaped column groove, a gear is fixed to the other end of the rotating column, and two adjacent gears are meshed; The outer surface of the rotating column is sleeved with a first torsion spring, so that the partition plate can rotate to an inclined state after being separated from the blocking unit.

[0006] As a further description of the above technical solution: The blocking unit includes a retaining seat fixed on the side block, and the four retaining seats are evenly divided into two groups. Each group of the retaining seats is rotatably connected to a shaft rod, a blocking frame is fixed to the bottom of the shaft rod, and a second torsion spring is sleeved on the shaft rod to enable the blocking frame to rotate to a vertical state after being separated from the partition plate.

[0007] As a further description of the above technical solution: A semicircular groove is formed at one end of the rotating column, and a stopper for blocking the rotating column is fixed on the top of the inner wall of the T-shaped column groove, and blocking bars for limiting the rotation angle of the partition plate are fixed on the front and back sides of the base.

[0008] As a further description of the above technical solution: An upper sealing plate adapted to the movement track of the partition plate is fixed to the top of the inner wall of the side stopper, and the lower surface of the upper sealing plate contacts the top end of the inclined partition plate.

[0009] As a further description of the above technical solution: The material guide mechanism comprises a bracket, a cross frame is fixed on the inner wall of the bracket, the top of both sides of the bracket and both sides of the cross frame are rotatably connected with sprockets through mounting seats, two of the sprockets on the bracket and two of the sprockets on the cross frame are connected together through a connecting shaft, and the eight sprockets are divided into four groups, and the surfaces of the sprockets in each group are meshed and connected with a chain; A support is fixed to one of the mounting seats on the bracket and one of the mounting seats on the cross frame by bolts, a driving member is fixed to the support, and an output end of the driving member is connected to a sprocket.

[0010] As a further description of the above technical solution: The upper surfaces of the bracket and the cross frame are slidably connected to sliders via slide rails, wherein six of the sliders are commonly connected to a material guide hopper, upper connecting pieces are fixed on both sides of the upper surface of the material guide hopper, and two of the upper connecting pieces are respectively connected to two of the chains.

[0011] As a further description of the above technical solution: The other four sliding blocks are commonly connected with an extension bucket, and lower connecting pieces are fixed on both sides of the upper surface of the extension bucket, and two lower connecting pieces are respectively connected with the other two chains.

[0012] As a further description of the above technical solution: The material discharging mechanism comprises a moving frame, a material receiving hopper is fixed on the moving frame, and a mounting rod is fixed on the inner wall of the moving frame.

[0013] As a further description of the above technical solution: A lower connecting column is fixed on the mounting rod, the top end of the lower connecting column is connected to a spring via a first shock-absorbing pad, the top end of the spring is connected to an upper connecting column via a second shock-absorbing pad, the top ends of the eight upper connecting columns are commonly fixedly connected to a material discharge frame, and a vibration motor is installed at the bottom of the material discharge frame.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: The feeding mechanism and the blocking unit are provided to realize the tilting reset design through the partition plate, and cooperate with the elastic constraint of the first torsion spring to form a three-sided enclosure pressure in the material conveying process in cooperation with the upper sealing plate, so as to effectively limit the relative displacement of the mixed particle material in the tilting section, reduce the segregation effect caused by the difference in particle size and density, and thus ensure the uniformity during unloading; At the same time, during the conveying period, the upper sealing plate is used to form a closed space, so that the storage unit formed when the partition plate is in the vertical state can receive more materials, and there is no need to worry about the material falling during the conveying in the inclined section, thus solving the problem of limited material loading capacity due to the setting of the inclined section of the conveyor; At the same time, during the unloading stage, the inclined partition plate forms a smooth transition channel with the guide hopper, avoiding the impact and splashing caused by traditional vertical unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It shows a schematic diagram of a structure provided in a three-dimensional manner according to an embodiment of the present invention; Figure 2 A schematic diagram of a split structure of a spacer provided according to an embodiment of the present invention is shown; Figure 3 It shows a schematic structural diagram of a first viewing angle of an upper sealing plate provided by an embodiment of the present invention after being cut open; Figure 4 The embodiment provided according to the present invention shows Figure 2 The enlarged view of point A in the middle; Figure 5 The embodiment provided according to the present invention shows Figure 3 The enlarged view of point B in the middle; Figure 6It shows a structural schematic diagram of a material guiding mechanism provided according to an embodiment of the present invention; Figure 7 A schematic structural diagram of a material discharging mechanism according to an embodiment of the present invention is shown; Figure 8 It shows a structural schematic diagram of a second viewing angle after the upper sealing plate provided by an embodiment of the present invention is cut open; Fig. 9 A schematic diagram of the structure of a retaining frame abutting against a partition plate according to an embodiment of the present invention is shown; Fig.10 It shows a schematic structural diagram of a partition plate in a vertical state according to an embodiment of the present invention; Fig.11 It shows a schematic structural diagram of a partition plate in an inclined state provided by an embodiment of the present invention; Fig.12 A schematic diagram of the installation position of a feeding mechanism provided according to an embodiment of the present invention is shown.

[0016] Legend: 10. Material guiding mechanism; 11. Bracket; 12. Material guiding hopper; 13. Extension hopper; 14. Driving member; 20. Rack; 30. Feeding mechanism; 31. Mounting frame; 32. Conveyor belt; 33. Side stopper; 34. Spacer; 341. Base; 342. Spacer plate; 343. T-shaped column groove; 344. Rotating column; 345. Gear; 346. Stopper; 347. Stopper bar; 40. blocking unit; 41. holding seat; 42. shaft rod; 43. blocking frame; 44. upper sealing plate; 50. Material discharge mechanism; 51. Moving frame; 52. Material receiving hopper; 53. Spring; 54. Material discharge frame; 55. Vibrating motor; 60. Assembly line. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figure 1 - Fig.12 As shown, the present invention provides: An intelligent automatic assembly line feeding system includes a material guide mechanism 10 mounted on an assembly line 60, a frame 20 is mounted on one side of the material guide mechanism 10, a material discharge mechanism 50 is mounted on one side of the frame 20, the assembly line 60 includes a roller conveyor, a material receiving container is arranged on the roller conveyor, and the material receiving container moves to the bottom of the material guide mechanism 10 under the action of the roller conveyor to receive the material; The material discharging mechanism 50 includes a moving frame 51, a receiving hopper 52 is fixed on the moving frame 51, a mounting rod is fixed on the inner wall of the moving frame 51, a lower connecting column is fixed on the mounting rod, the top end of the lower connecting column is connected to a spring 53 through a first shock-absorbing pad, the top end of the spring 53 is connected to an upper connecting column through a second shock-absorbing pad, the top ends of the eight upper connecting columns are commonly fixedly connected to a material discharging frame 54, and a vibration motor 55 is installed at the bottom of the material discharging frame 54; Specifically, in the actual feeding process, the mixed material is first poured into the receiving hopper 52, then falls to the surface of the discharge frame 54, and finally falls to the surface of the loading mechanism 30 for transportation. It is worth noting that when the fluidity of the material to be loaded is poor, the vibration motor 55 needs to be started to vibrate the discharge frame 54, thereby promoting the flow of the material.

[0019] like Figure 2 , Fig.10 , Fig.11 and Fig.12 As shown, a feeding mechanism 30 is mounted on the frame 20, and the feeding mechanism 30 includes a mounting frame 31 fixed on the frame 20, a conveyor belt 32 is mounted in the mounting frame 31 through a roller shaft, a reduction motor for driving the roller shaft to rotate is mounted on the outer wall of the mounting frame 31, a plurality of spacers 34 are mounted on the conveyor belt 32, and side blocks 33 whose outer walls are fixed to the mounting frame 31 are sleeved on both sides of the outer surface of the conveyor belt 32; In further detail, the spacer 34 includes a base 341 mounted on the conveyor belt 32, and two spacer plates 342 are rotatably connected to the base 341 so as to move relative to each other, so as to apply pressure to the mixed material after the spacer plates 342 are tilted after the mixed material falls on the surface of the conveyor belt 32 through the discharge mechanism 50; The side stopper 33 is equipped with a blocking unit 40, which drives the partition plate 342 rotated to a tilted state on one side thereof to rotate to a vertical state; The spacer 34 further includes a T-shaped column groove 343 opened on both side walls of the base 341, a rotating column 344 having one end fixed to the spacer plate 342 is rotatably connected in the T-shaped column groove 343, a gear 345 is fixed to the other end of the rotating column 344, and two adjacent gears 345 are meshed, and a first torsion spring is sleeved on the outer surface of the rotating column 344, so that the spacer plate 342 can rotate to a tilted state after being separated from the blocking unit 40; A semicircular groove is formed at one end of the rotating column 344, and a stopper 346 for blocking the rotating column 344 is fixed on the top of the inner wall of the T-shaped column groove 343, and a stopper 347 for limiting the rotation angle of the partition plate 342 is fixed on the front and back of the base 341; Specifically, under the action of the stop block 346, when the partition plate 342 is gradually pushed to a vertical state by the blocking unit 40, the inner wall of the semicircular groove on the rotating column 344 abuts against the stop block 346. At this time, the partition plate 342 will remain in the vertical state. When it continues to be abutted by the blocking unit 40, the partition plate 342 maintained in the vertical state will drive the blocking unit 40 to rotate forward. After moving to separate from the blocking unit 40, the two partition plates 342 on the same base 341 will be driven to reset to the inclined state, that is, the state after abutting against the blocking bar 347 under the action of the first torsion spring.

[0020] like Figure 3 and Fig. 9 As shown, the blocking unit 40 includes a retaining seat 41 fixed on the side block 33, and the four retaining seats 41 are evenly divided into two groups, each group of retaining seats 41 is rotatably connected with a shaft 42, and a retaining frame 43 is fixed at the bottom of the shaft 42. In particular, the bottom end of the retaining frame 43 is lower than the top of the inclined partition plate 342, and a second torsion spring is sleeved on the shaft 42, so that the retaining frame 43 can rotate to a vertical state after being separated from the partition plate 342. An upper sealing plate 44 adapted to the motion trajectory of the partition plate 342 is fixed to the top of the inner wall of the side block 33, and the lower surface of the upper sealing plate 44 is in contact with the top of the inclined partition plate 342. In further detail, the force applied by the first torsion spring to the rotating column 344 to make it rotate is smaller than the force applied by the second torsion spring to the shaft rod 42 to keep it in a vertical state. Preferably, in order to keep the blocking frame 43 in a vertical state under the action of the second torsion spring, a blocking rod is fixed to one side of the inner wall of the retaining seat 41. When the blocking frame 43 rotates backward to break away from the spacer plate 342, the blocking frame 43 rotates backward under the action of the second torsion spring and resets to a vertical state. At this time, the blocking rod can block the blocking frame 43 to prevent it from continuing to rotate backward. Specifically, when the spacer 34 gradually rotates to the front of the first stopper 43, the stopper 43 first makes oblique contact with the spacer plate 342, and as the conveyor belt 32 continues to rotate, the spacer plate 342 continues to move forward. Since the force of the first torsion spring is smaller than that of the second torsion spring, the spacer plate 342 is gradually pushed to a vertical state. In this process, under the action of the mutually meshing gears 345, the other adjacent spacer plate 342 is also rotated to a vertical state. After rotating to the vertical state, the spacer plate 342 cannot continue to rotate. At this time, during the continued movement, the spacer plate 342 in the vertical state will drive the blocking frame 43 to rotate forward, and then gradually separate from the spacer plate 342, thereby releasing the restriction on the group of spacer plates 342. In this state, the group of spacer plates 342 is restored to the inclined state under the action of the first torsion spring, and the first blocking frame 43 is restored to the vertical state under the action of the second torsion spring. At this time, the group of spacer plates 342 is between the two blocking frames 43; In this state, the conveyor belt 32 continues to rotate, and the other set of inclined partition plates 342 gradually moves toward the previous baffle 43, while the partition plates 342 between the two baffles 43 move toward the next baffle 43. When the two sets of partition plates 342 are respectively rotated to a vertical state under the action of the two baffles 43, the material is discharged through the discharge mechanism 50, so that the mixed material falls between the two vertical partition plates 342. After the material is loaded, the two sets of partition plates 342 are separated from the retaining frame 43 while continuing to move, and then rotate to an inclined state driven by the first torsion spring, thereby applying pressure to the mixed material, thereby improving its fluidity during transportation. At the same time, during the inclined conveying process, the upper sealing plate 44 can fit with the top of the inclined partition plate 342, and cooperate with the inclined partition plate 342 to apply pressure to the mixed material from three sides, further reducing the fluidity of the material, ensuring the uniformity during unloading, and at the same time, enabling the amount of material to be greatly increased during loading. When transporting to the top end and loading into the receiving container on the assembly line 60, the inclined partition plate 342 can make it easier to deliver the material into the receiving container.

[0021] like Figure 1 , Figure 6 and Fig.12 As shown, the material guide mechanism 10 includes a bracket 11, a cross frame is fixed on the inner wall of the bracket 11, the tops of both sides of the bracket 11 and both sides of the cross frame are rotatably connected with sprockets through mounting seats, two of the sprockets on the bracket 11 and two of the sprockets on the cross frame are connected together through a connecting shaft, and the eight sprockets are divided into four groups, and the surface of each group of sprockets is meshed and connected with a chain; A support is fixed to one of the mounting seats on the bracket 11 and one of the mounting seats on the cross frame by bolts, and a driving member 14 is fixed to the support, and the output end of the driving member 14 is connected to the sprocket. Preferably, the driving member 14 is a servo motor, and the sprocket is detachably installed, and can be disassembled and replaced if necessary, and replaced with a pulley and a synchronous belt; The upper surfaces of the bracket 11 and the cross frame are slidably connected to sliders through slide rails, six of which are commonly connected to a material guide hopper 12, upper connecting parts are fixed on both sides of the upper surface of the material guide hopper 12, and the two upper connecting parts are respectively connected to two of the chains; the other four sliders are commonly connected to an extension bucket 13, lower connecting parts are fixed on both sides of the upper surface of the extension bucket 13, and the two lower connecting parts are respectively connected to the other two chains.

[0022] Specifically, in the process of loading materials into the receiving container through the conveyor belt 32, according to the position of the inlet of the receiving container, the driving member 14 located above is started, so that the sprocket connected thereto rotates with the chain, and then the guide hopper 12 on the chain moves to the position corresponding to the inlet of the receiving container. At the same time, when the discharge port of the guide hopper 12 is much higher than the inlet of the receiving container, the driving member 14 located below is started, so that the sprocket connected thereto drives the chain to rotate, and then the extension hopper 13 connected to the chain moves to the bottom of the guide hopper 12, further guiding the material so that the material can enter the receiving container, completing the loading operation.

[0023] Specifically, when this intelligent automatic assembly line loading system is working / in use: 1. Material receiving stage The mixed material is poured into the receiving hopper 52. If the material has poor fluidity, the vibration motor 55 is started; 2. Quantitative filling stage The partition plate 342 initially maintains an inclination of 15°, and by following the conveyor belt 32 to the stop frame 43, the partition plate 342 is pushed up by the stop frame 43 to a vertical state to form a material storage grid; 3. Pressure conveying stage After the material falls into the storage grid formed by the vertical partition plate 342, the conveyor belt 32 continues to operate to make the partition plate 342 separate from the retaining frame 43. At this time, the first torsion spring drives the partition plate 342 to return to the inclined state, and cooperates with the upper sealing plate 44 to apply pressure on the material on three sides; 4. Adaptive feeding stage The guide hopper 12 is initially located at a default position. According to the position of the receiving container below, the upper drive 14 is started to drive the upper chain to adjust the guide hopper 12 to just above the inlet of the receiving container. If the guide stroke needs to be extended, the position of the extension hopper 13 is adjusted through the lower drive 14; 5. Cycle reset stage After the partition plate 342 has completed unloading, it contacts the retaining frame 43 again under the drive of the conveyor belt 32 and enters the next filling cycle. At the same time, the guide hopper 12 and the extension hopper 13 are reset to the initial position.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent automatic assembly line feeding system, comprising a material guiding mechanism (10) mounted on an assembly line (60), a frame (20) being mounted on one side of the material guiding mechanism (10), and a material discharging mechanism (50) being mounted on one side of the frame (20), characterized in that: The frame (20) is equipped with a feeding mechanism (30); The feeding mechanism (30) comprises a mounting frame (31) fixed on the frame (20), a conveyor belt (32) being mounted in the mounting frame (31) via a roller shaft, a reduction motor for driving the roller shaft to rotate being mounted on the outer wall of the mounting frame (31), a plurality of spacers (34) being mounted on the conveyor belt (32), and side blocks (33) being mounted on both sides of the outer surface of the conveyor belt (32) and the outer wall of which is fixed to the mounting frame (31); The spacer (34) comprises a base (341) mounted on the conveyor belt (32), and two spacer plates (342) are rotatably connected to the base (341) and are relatively movable, so that after the mixed material falls onto the surface of the conveyor belt (32) through the discharge mechanism (50), the spacer plates (342) are tilted to apply pressure to the mixed material; The side stopper (33) is equipped with a blocking unit (40), and the blocking unit (40) drives the partition plate (342) rotated to a tilted state on one side thereof to rotate to a vertical state.

2. According to the intelligent automatic assembly line loading system of claim 1, it is characterized in that: The spacer (34) further comprises a T-shaped column groove (343) formed on two side walls of the base (341), wherein a rotating column (344) having one end fixed to the spacer plate (342) is rotatably connected in the T-shaped column groove (343), a gear (345) is fixed to the other end of the rotating column (344), and two adjacent gears (345) are meshed with each other; The outer surface of the rotating column (344) is sleeved with a first torsion spring, so that the partition plate (342) can rotate to a tilted state after being separated from the blocking unit (40).

3. The intelligent automatic assembly line loading system according to claim 2 is characterized in that: The blocking unit (40) comprises a retaining seat (41) fixed on the side block (33), and the four retaining seats (41) are evenly divided into two groups, each group of the retaining seats (41) is rotatably connected to a shaft (42), a blocking frame (43) is fixed to the bottom of the shaft (42), and a second torsion spring is sleeved on the shaft (42) so that the blocking frame (43) can rotate to a vertical state after being separated from the partition plate (342).

4. The intelligent automatic assembly line loading system according to claim 3 is characterized in that: A semicircular groove is formed at one end of the rotating column (344), a stopper (346) for blocking the rotating column (344) is fixed to the top of the inner wall of the T-shaped column groove (343), and a stopper (347) for limiting the rotation angle of the partition plate (342) is fixed to the front and back sides of the base (341).

5. The intelligent automatic assembly line loading system according to claim 4 is characterized in that: An upper sealing plate (44) adapted to the movement trajectory of the partition plate (342) is fixed to the top of the inner wall of the side stopper (33), and the lower surface of the upper sealing plate (44) contacts the top end of the inclined partition plate (342).

6. The intelligent automatic assembly line loading system according to claim 1 is characterized in that: The material guiding mechanism (10) comprises a bracket (11), a cross frame is fixed on the inner wall of the bracket (11), the tops of both sides of the bracket (11) and both sides of the cross frame are rotatably connected to sprockets via mounting seats, two of the sprockets on the bracket (11) and two of the sprockets on the cross frame are connected together via a connecting shaft, and the eight sprockets are divided into four groups, and the surfaces of the sprockets in each group are meshed and connected to a chain; A support is fixed to one of the mounting seats on the bracket (11) and one of the mounting seats on the cross frame via bolts, a driving member (14) is fixed to the support, and an output end of the driving member (14) is connected to a sprocket.

7. The intelligent automatic assembly line loading system according to claim 6 is characterized in that: The upper surfaces of the bracket (11) and the cross frame are slidably connected to sliders via slide rails, wherein six of the sliders are commonly connected to a material guide hopper (12), upper connecting pieces are fixed on both sides of the upper surface of the material guide hopper (12), and two of the upper connecting pieces are respectively connected to two of the chains.

8. The intelligent automatic assembly line loading system according to claim 7 is characterized in that: The other four slide blocks are commonly connected to an extension bucket (13), and lower connecting pieces are fixed on both sides of the upper surface of the extension bucket (13), and two lower connecting pieces are respectively connected to the other two chains.

9. The intelligent automatic assembly line loading system according to claim 1, characterized in that: The material discharge mechanism (50) comprises a movable frame (51), a material receiving hopper (52) is fixed on the movable frame (51), and a mounting rod is fixed on the inner wall of the movable frame (51).

10. The intelligent automatic assembly line loading system according to claim 9, characterized in that: A lower support is fixed on the mounting rod, the top end of the lower support is connected to a spring (53) via a first shock-absorbing pad, the top end of the spring (53) is connected to an upper support via a second shock-absorbing pad, the top ends of the eight upper supports are commonly fixedly connected to a material discharging frame (54), and a vibration motor (55) is installed at the bottom of the material discharging frame (54).

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