Columnar lithium battery batch highland barley paper pressing and pasting device

Abstract

The invention relates to the technical field of battery assembling and processing, and particularly discloses a cylindrical lithium battery batch highland barley paper pressing and pasting device which comprises a base, a discharging mechanism for discharging cylindrical lithium batteries one by one is arranged on the upper surface of the base, and a guide groove inclining downwards is formed below the discharging mechanism; a rotary positioning mechanism, a highland barley paper conveying mechanism and a pressing and pasting mechanism are arranged on the base, the rotary positioning mechanism comprises a fixedly-arranged disc block, a rotary disc is rotationally connected to the disc block, a plurality of positioning material boxes are fixed to the rotary disc in an annular array shape, material distribution grooves are formed in the positioning material boxes, and storage grooves are formed in the top walls of the material distribution grooves; a positioning pressing block which can be pressed downwards to extend into the material distribution groove is arranged in the storage groove; according to the device, a plurality of columnar lithium batteries can be rotationally conveyed at a time, highland barley paper pressing and pasting operation can be completed on the columnar lithium batteries in rows at a time, and highland barley paper rings on a carrier tape can be accurately and stably pressed on the end faces of the positive electrodes of the batteries through the pressing and pasting mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of battery assembly and processing, and specifically discloses a device for batch pressing and pasting barley paper on columnar lithium batteries. Background Art

[0002] During the assembly and processing of columnar lithium batteries, in order to improve the safety and stability of the batteries, it is necessary to press and paste a ring-shaped barley paper on the positive end face of the batteries to isolate the negative electrode of the battery cell steel shell, increase the insulation strength, and prevent the risks of short circuit and explosion.

[0003] The pasting of barley paper on the batteries mainly has two methods: manual pasting and machine pressing. The manual pasting method not only has low work efficiency, but also the pasting force and the accuracy of the pasting position cannot be effectively guaranteed. Machine pressing is mainly operated by corresponding equipment. For example, the utility model patent with the application number 202021352450.4 discloses a device for automatically pasting barley paper on lithium batteries, including a bottom plate, a frame fixedly connected to the bottom plate, a first motor seat fixedly connected to the frame, a first motor arranged on the first motor seat, the first motor is connected to a barley paper fixing ring through a first output shaft, a barley paper is connected to the barley paper fixing ring, a second hydraulic pump seat is connected to the frame, a second hydraulic pump is connected to the second hydraulic pump seat, a pressing mechanism is connected to the second hydraulic pump, and a feeding mechanism is fixedly connected to the frame. The device for automatically pasting barley paper on lithium batteries disclosed in this patent uses a rotary feeding mechanism to convey columnar lithium batteries to directly below the barley paper one by one, and then uses the action of the pressing mechanism to press and paste the barley paper on the positive electrode of the lithium battery one by one. Its efficiency is greatly improved compared with manual pasting. However, it can still only operate on one lithium battery each time, and the operation efficiency is still not ideal. The difficulty of mechanically pressing and pasting a row of lithium batteries at one time mainly lies in the precise positioning of the lithium batteries before pressing and the effective control of the pressing force. This device for automatically pasting barley paper on lithium batteries cannot achieve the above functions. Based on this, the present application proposes a device for batch pressing and pasting barley paper on columnar lithium batteries to achieve precise and efficient pressing and pasting processing of batch columnar lithium batteries, and improve its operation efficiency on the premise of ensuring the pressing and pasting effect of the barley paper. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for batch pressing and pasting barley paper on columnar lithium batteries to achieve precise and efficient pressing and pasting processing of batch columnar lithium batteries, and improve its operation efficiency on the premise of ensuring the pressing and pasting effect of the barley paper.

[0005] The present invention is realized through the following technical solutions: A device for pressing highland barley paper for columnar lithium batteries in batches comprises a base and a control box, wherein the upper surface of the base is provided with a feeding mechanism for discharging the columnar lithium batteries one by one, a downwardly inclined material guide trough is provided below the feeding mechanism, and a rotating positioning mechanism, a highland barley paper conveying mechanism and a pressing mechanism are provided on the base; The rotary positioning mechanism comprises a fixedly arranged disc block, the disc block is connected to a turntable by rotating toward one side of the material guide trough, and the disc block is provided with a power device for driving the turntable, a plurality of positioning material boxes are fixed on the turntable in an annular array, a material distributing trough connected with the material guide trough is provided in the positioning material box, a receiving groove is provided on the top wall of the material distributing trough, a positioning pressure block which can be pressed down and extended into the material distributing trough is connected in the receiving groove through a first spring, an axial pushing rod extending out of the turntable is connected at the upper end of the receiving groove through a second spring, a first pressing wheel is provided at the inner end of the axial pushing rod, an inclined surface block acting with the first pressing wheel is provided on the positioning pressure block, a second pressing wheel is provided at the outer end of the axial pushing rod, and an extrusion protrusion acting with the second pressing wheel is provided on the disc block; The highland barley paper conveying mechanism includes a fixed side frame, and a winding roller and a unwinding roller are respectively provided at both ends of the side frame, and a carrier tape connected to the winding roller is wound on the unwinding roller, and rows of evenly arranged highland barley paper circles are provided on the lower surface of the carrier tape. The pressing mechanism is arranged directly above the top positioning material box and presses the rows of highland barley paper circles to fit with the top positive electrode of the cylindrical lithium battery.

[0006] As a further configuration of the above scheme, the extrusion protrusion is arc-shaped and is arranged concentrically with the turntable. The starting end of the extrusion protrusion is located above the connection position between the positioning material box and the material guide groove, and the terminal end of the extrusion protrusion is located below the middle height of the disc block.

[0007] As a further configuration of the above scheme, a plurality of clamping grooves are evenly spaced at the lower end of the positioning pressing block pressed into the material distribution groove, and a tip portion for separating the columnar lithium batteries is formed between two adjacent clamping grooves.

[0008] As a further configuration of the above scheme, the pressing mechanism includes a first telescopic member arranged on the top of the side frame, the lower end of the first telescopic member is connected to a strip plate arranged perpendicular to the traction direction of the carrier tape, a row of die heads are arranged on the strip plate, and the die heads are aligned one by one with the cylindrical lithium batteries in the positioning box at the top.

[0009] As a further configuration of the above scheme, a compression detection mechanism is provided on the side frame for acting on the cylindrical lithium batteries in the positioning box before unloading, and the compression detection mechanism comprises a second telescopic member fixed on the side frame, a strip is connected to the end of the second telescopic member, and a row of holes are provided on the side of the strip facing the positioning box, a pressure ring is connected to the hole through a third spring, and a pressure sensor connected to each third spring is provided on the other side of the strip, and each pressure sensor is electrically connected to the control box.

[0010] As a further configuration of the above solution, a discharge guide groove is provided on the upper surface of the base below the clamping detection mechanism.

[0011] As a further configuration of the above scheme, the unloading mechanism includes a trough bin obliquely fixed on the base, a unloading channel is arranged at the lower end of the trough bin, a slot wheel is rotatably arranged on one side of the unloading channel, and a unloading motor connected to the slot wheel is installed on the back of the unloading channel.

[0012] During the operation of the device for pressing highland barley paper for columnar lithium batteries in batches disclosed by the present invention, the positioning material box in the rotating positioning mechanism rotates with the turntable to connect with the lower end of the material guide trough, and then the unloading mechanism is started to discharge the columnar lithium batteries into the distribution trough of the positioning material box one by one until the number of columnar lithium batteries loaded in the positioning material box reaches a preset value.

[0013] Then, continue to rotate the turntable to make the positioning box filled with cylindrical lithium batteries rotate upward, and the next positioning box is switched to connect with the lower end of the guide trough to load the next group of cylindrical lithium batteries. In the process of the cylindrical lithium battery rotating upward with the positioning box, due to its own gravity, the negative end surface of the cylindrical lithium battery will abut against the side wall of the distribution trough to achieve the axial alignment of the battery itself, ensuring that the length of the positive end surface of the cylindrical lithium battery extending out of the distribution trough is consistent.

[0014] Then, as the turntable continues to rotate upward, the second pressing wheel begins to interact with the extrusion convex block, causing the axial push rod to move toward the inside of the positioning material box, and then the positioning pressing block is pressed toward the material distribution groove through the action of the first pressing wheel and the inclined block, and then the row of columnar lithium batteries in the material distribution groove are evenly distributed and pressed and fixed through the action of the card slot and the tip of the positioning pressing block. When the columnar batteries are pressed and positioned and rotate to the top with the turntable, the positive terminal of each columnar lithium battery is aligned with the pressing mechanism, and the pressing mechanism is started to press a row of highland barley paper circles on the carrier tape together on the positive terminal of the battery.

[0015] Finally, before the highland barley paper circle is pressed and unloaded, the present invention also uses the design of the compression detection mechanism. When the positive terminal of a row of columnar lithium batteries is affixed with the highland barley paper circle and rotated to be aligned with the compression detection mechanism, the second telescopic member is started to push the bar toward the columnar lithium battery, so that the pressure ring is pressed on the corresponding highland barley paper circle one by one, and the highland barley paper circle can be further pressed and fitted on the positive terminal surface of the columnar lithium battery in the process of continuing to apply the driving force. If there is a highland barley paper circle that is not successfully pasted or falls off, because the highland barley paper circle has a certain thickness, there is a difference in the compression amount of the third spring in the same row, so the corresponding pressure sensor value without the highland barley paper circle is lower than that of the others, and timely alarm can be performed through feedback processing of the control box.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The device for pressing highland barley paper for columnar lithium batteries in batches disclosed in the present invention can not only rotate and convey multiple columnar lithium batteries at one time and complete the pressing operation of highland barley paper for rows of columnar lithium batteries at one time through the design of a rotating positioning mechanism, but also can first utilize the battery's own gravity to make its negative terminal abut against the side wall of the distribution groove to achieve its own axial alignment during the rotation process, and then press the positioning pressing block into the distribution groove through the joint action of the axial push rod, the first pressing wheel, the second pressing wheel, the inclined block, and the extrusion protrusion, and evenly distribute the columnar lithium batteries at equal intervals and press them tightly and fix them through the action of the clamping groove and the tip of the positioning pressing block, thereby realizing the positioning adjustment of multiple columnar lithium batteries before pressing them on highland barley paper, ensuring that the subsequent pressing mechanism can accurately and stably press the highland barley paper circle on the carrier onto the positive terminal surface of the battery.

[0017] The present invention is further provided with a pressing detection mechanism. After the highland barley paper is pressed and pasted on the positive terminal of the columnar lithium battery, the pressing detection mechanism can further press and fit it to ensure the adhesion effect of the highland barley paper ring. The third spring and the pressure sensor can also be used to detect whether the highland barley paper ring on the battery is not pasted or falls off, and timely feedback and alarm processing are performed, further ensuring the pasting effect of the highland barley paper on the positive electrode of the columnar lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure from a first angle of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure from a second angle of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the rotary positioning mechanism in the present invention; Figure 4 It is a schematic diagram of the planar structure of the turntable, the positioning material box, and the lithium battery in the present invention; Figure 5 It is a schematic diagram of the cross-section internal three-dimensional structure of the positioning material box in the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the pressing mechanism in the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the compression detection mechanism in the present invention; Figure 8 For the present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 - 8 , and describes the application in detail with reference to embodiments. Example 1

[0022] Example 1 discloses a device for pressing highland barley paper on a batch of cylindrical lithium batteries. Figure 1 , Attachment Figure 2 and attached Figure 8The main body of the device includes a base 1, a trough bin 2, a control box 3, a rotation positioning mechanism 4, a highland barley paper conveying mechanism 5 and a pressing mechanism 6. A plurality of brackets are arranged on the lower surface of the base 1, and a seat block 7 is arranged at the front end of the upper surface thereof. The trough bin 2 is tilted and fixed on the upper surface of the seat block 7, and a feeding channel 201 is arranged at the lower end of the trough bin 2. A slot wheel 202 is rotatably arranged on one side of the feeding channel 201, and a feeding motor 203 connected to the slot wheel 202 is installed on the back of the feeding channel 201. Before the equipment is operated, the operator arranges and places the cylindrical lithium batteries in the trough bin 2, and the positive poles thereof are uniformly arranged outward. During the feeding process, the feeding motor 203 is started to rotate the slot wheel 202, and then the cylindrical lithium batteries can be discharged one by one through the slot wheel 202. Finally, a downwardly inclined material guide trough 8 is fixed just below the material discharge channel 201 , and the columnar lithium batteries discharged one by one can roll downward along the material guide trough 8 and finally fall into the rotation positioning mechanism 4 .

[0023] Reference Figure 3 , Attachment Figure 4 and attached Figure 5 The rotary positioning mechanism 4 includes a support 401 fixed on the upper surface of the base 1, a disc block 402 is fixedly connected to the top of the support 401, a turntable 403 is arranged on the side of the disc block 402 facing the guide trough 8, and a power device 404 for driving the turntable 403 to rotate is arranged at the center of the other side of the disc block 402. A plurality of positioning material boxes 405 are evenly fixed in an annular array on the turntable 403, and a material distribution groove 4051 connected with the lower end of the guide trough 8 is provided on the positioning material box 405, and a storage groove 4052 is provided on the top wall of the material distribution groove 4051. A positioning block 407 that can be pressed into the material distribution groove 4051 is connected to the storage groove 4052 through the first spring 406. The positioning block 407 extends into the lower end of the material distribution groove 4051 and is provided with multiple card slots 4071 at equal intervals, and a tip portion 4072 for separating the cylindrical lithium batteries is formed between two adjacent card slots 4071.

[0024] An axial push rod 409 is connected to the receiving groove 4052 above the positioning block 407 through a second spring 408, a first pressing wheel 410 is arranged at the inner end of the axial push rod 409, and a second pressing wheel 411 is arranged at the outer end of the axial push rod 409 extending out of the receiving groove 4052 and the rotating disk 403. An inclined block 412 is fixed on the upper surface of the positioning block 407 to interact with the first pressing wheel 410, and an extrusion convex block 413 is fixed on the disc block 402 facing the side of the rotating disk 403 to interact with the second pressing wheel 411. The extrusion convex block 413 is in an arc shape and is arranged concentrically with the rotating disk 403, with its starting end located above the position where the positioning material box and the material guide groove 8 are connected, and its terminal end is located below the middle height of the disc block 402.

[0025] ReferenceFigure 1 , Attachment Figure 2 and attached Figure 6 The highland barley paper conveying mechanism 5 includes a side frame 501 fixed on the rear end of the upper surface of the base 1, and a winding roller 502 and a discharging roller 503 are respectively arranged at the left and right ends of the side frame 501, and a winding motor 504 is connected to the end of the winding roller 502, and a carrier belt 505 connected to the discharging roller 503 is wound around the winding roller 502, and a plurality of rows of highland barley paper circles 506 are evenly arranged at equal intervals on the lower surface of the carrier belt 505. The pressing mechanism 6 includes a first telescopic member 601 arranged at the top of the side frame 501, and the first telescopic member 601 can be selected from a cylinder or an electric push rod. A strip plate 602 arranged perpendicular to the traction direction of the carrier belt 505 is connected to the lower end of the first telescopic member 601, and then a row of die heads 603 evenly arranged and aligned with the highland barley paper circles 506 are arranged on the strip plate 602, and the die head 603 is located directly above the top positioning material box 405.

[0026] During the operation of the device for pressing highland barley paper for columnar lithium batteries in batches disclosed in this embodiment 1, the trough bin 2, the unloading channel 201 and the slot wheel 202 work together to discharge the columnar lithium batteries 100 one by one into the guide trough 8, and roll down along the guide trough 8 to the positioning material box 405 connected thereto. When the number of columnar lithium batteries received in the positioning material box 405 reaches the set number, unloading stops, and then the power device 404 drives the turntable 403 to rotate a certain angle, so that the next positioning material box 405 is rotated and adjusted to connect with the guide trough 8, and the next group of columnar lithium batteries are connected.

[0027] As the turntable 403 continues to rotate upward, on the one hand, the negative end surfaces of the rows of columnar lithium batteries abut against the side wall of the material distribution groove 4051 under the action of the gravity component force to limit the position, and on the other hand, the second pressing wheel 411 at the outer end of the axial push rod 409 begins to contact the extrusion protrusion 413, thereby pushing the axial push rod 409 toward the inside of the positioning material box 405 through the extrusion action, and then the positioning pressing block 407 is pushed into the material distribution groove 4051 under the action of the first pressing wheel 410 and the inclined block 412. In the process of the positioning pressing block 407 moving downward to the material distribution groove 4051, the columnar lithium batteries that were originally closely connected in a row can be separated and pressed and fixed by the clamping groove 4071 and the tip 4072 on the positioning pressing block 407.

[0028] After being pressed and positioned, the rows of cylindrical lithium batteries rotate to the top along with the positioning material box 405, and the positive poles at the top of the cylindrical lithium batteries are aligned one by one with the die head 603. After alignment, a row of highland barley paper circles 506 on the carrier tape 505 are moved between the two and aligned through traction, and then the first telescopic member 601 is activated to push the strip 602 and the die head 603 downward, so that the highland barley paper circle 506 is accurately pressed onto the positive terminal surface of the cylindrical lithium battery through the die head 603.

[0029] After the pressing of the highland barley paper circle 506 is completed, the power device 404 is started to rotate the positioning material box 405 downward until the second pressing wheel 411 is separated from the extrusion protrusion 413 after rotating to a certain angle, and then the positioning pressing block 407 begins to reset and release the pressing effect on the cylindrical lithium battery under the action of the first and second springs. At this time, due to the inclined state, the cylindrical lithium battery after the compression is released will slide from the positioning material box 405 through the gravity component force, and finally be guided downward by the discharge guide groove 9 arranged on the upper surface of the base 1. Example 2

[0030] Example 2 discloses a device for batch pressing highland barley paper for columnar lithium batteries, which is improved and designed based on the technical solution in Example 1. The similarities between it and Example 1 are not described again.

[0031] Reference Figure 1 , Attachment Figure 2 and attached Figure 8 In this embodiment 2, a clamping detection mechanism 10 is arranged above the discharge guide groove 9, and the clamping detection mechanism 10 includes a second telescopic member 101 fixed on the side frame 501, and a bar 102 arranged parallel to and toward the positioning material box 405 is connected to the movable end of the second telescopic member 101, and a guide rod 103 that acts on the side frame 501 is arranged at one end of the bar 102.

[0032] A row of holes 1021 aligned with each clamping groove 4071 is provided on one side of the bar 102 facing the positioning material box 405, and a third spring 104 is arranged in the hole 1021. The outer end of the third spring 104 is connected to a pressure ring 105 that acts on the barley paper circle 506. A pressure sensor 106 connected to the inner end of each third spring 104 is provided on the other side of the bar 102, and each pressure sensor 106 is electrically connected to the control box 3.

[0033] The present embodiment 2 adopts the above-mentioned design, when the positive end of a row of columnar lithium batteries is pasted with highland barley paper circle 506 and rotated to be aligned with the pressing detection mechanism 10, the second telescopic member 101 is started to push the bar 102 toward the columnar lithium battery, so that the pressure ring 105 is pressed on the corresponding highland barley paper circle 506 one by one, and the highland barley paper circle 506 can be further pressed and fitted on the positive terminal surface of the columnar lithium battery in the process of continuing to apply the driving force. If there is highland barley paper circle 506 that is not successfully pasted or falls, because the highland barley paper circle 506 has a certain thickness, the compression amount of the third spring 104 in the same row is different, so the corresponding pressure sensor 106 value without pasting highland barley paper circle 506 is lower than that of others, and the feedback processing of the control box 3 is promptly reported.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for batch pressing and pasting barley paper on columnar lithium batteries, comprising a base and a control box, characterized in that, The upper surface of the base is provided with a feeding mechanism for discharging the cylindrical lithium batteries one by one, a downwardly inclined material guide trough is provided below the feeding mechanism, and a rotating positioning mechanism, a highland barley paper conveying mechanism and a pressing mechanism are provided on the base; The rotary positioning mechanism comprises a fixedly arranged disc block, the disc block is connected to a turntable by rotating toward one side of the material guide trough, and the disc block is provided with a power device for driving the turntable, a plurality of positioning material boxes are fixed on the turntable in an annular array, a material distributing trough connected with the material guide trough is provided in the positioning material box, a receiving groove is provided on the top wall of the material distributing trough, a positioning pressure block which can be pressed down and extended into the material distributing trough is connected in the receiving groove through a first spring, an axial pushing rod extending out of the turntable is connected at the upper end of the receiving groove through a second spring, a first pressing wheel is provided at the inner end of the axial pushing rod, an inclined surface block acting with the first pressing wheel is provided on the positioning pressure block, a second pressing wheel is provided at the outer end of the axial pushing rod, and an extrusion protrusion acting with the second pressing wheel is provided on the disc block; The highland barley paper conveying mechanism includes a fixed side frame, and a winding roller and a unwinding roller are respectively provided at both ends of the side frame, and a carrier tape connected to the winding roller is wound on the unwinding roller, and rows of evenly arranged highland barley paper circles are provided on the lower surface of the carrier tape. The pressing mechanism is arranged directly above the top positioning material box and presses the rows of highland barley paper circles to fit with the top positive electrode of the cylindrical lithium battery.

2. The device for batch pressing highland barley paper for cylindrical lithium batteries according to claim 1 is characterized in that: The extrusion protrusion is arc-shaped and is arranged concentrically with the turntable. The starting end of the extrusion protrusion is located above the position where the positioning material box and the material guide groove are connected, and the terminal end of the extrusion protrusion is located below the middle height of the disc block.

3. The device for batch pressing highland barley paper for cylindrical lithium batteries according to claim 1, characterized in that: The lower end of the positioning pressing block pressed into the material distribution groove is evenly spaced to form a plurality of material clamping grooves, and a tip portion for separating the columnar lithium batteries is formed between two adjacent material clamping grooves.

4. The device for batch pressing highland barley paper for cylindrical lithium batteries according to claim 1, characterized in that: The pressing mechanism includes a first telescopic member arranged on the top of the side frame, the lower end of the first telescopic member is connected to a strip plate arranged perpendicular to the traction direction of the carrier tape, a row of die heads are arranged on the strip plate, and the die heads are aligned one by one with the cylindrical lithium batteries in the positioning box at the top.

5. The device for batch pressing highland barley paper for cylindrical lithium batteries according to claim 1, characterized in that: The side frame is provided with a clamping detection mechanism for acting on the cylindrical lithium batteries in the positioning material box before unloading, and the clamping detection mechanism includes a second telescopic member fixed on the side frame, and a strip is connected to the end of the second telescopic member, and the strip is provided with holes arranged in rows on a side facing the positioning material box, and a pressure ring is connected to the hole through a third spring, and the pressure sensor connected to each third spring is provided on the other side of the strip, and each pressure sensor is electrically connected to the control box.

6. The device for batch pressing highland barley paper for cylindrical lithium batteries according to claim 5, characterized in that: A discharge guide groove is arranged on the upper surface of the base below the clamping detection mechanism.

7. The device for batch pressing highland barley paper for cylindrical lithium batteries according to claim 1, characterized in that: The material unloading mechanism comprises a material trough bin tiltedly fixed on a base, a material unloading channel is arranged at the lower end of the material trough bin, a slot wheel is rotatably arranged on one side of the material unloading channel, and a material unloading motor connected to the slot wheel is installed on the back of the material unloading channel.

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