Pole piece cutting mechanism

Abstract

The utility model provides a pole piece cutting mechanism which comprises a working table, a cutting assembly and a conveying assembly, the cutting assembly and the conveying assembly are fixed to the left side and the right side above the working table respectively, a mounting frame is fixed to the working table, and a rotary driving assembly is fixed to the middle of the mounting frame. The two transmission rollers are rotatably mounted at the left end and the right end of the mounting frame respectively, the left end and the right end of the conveying belt are wound around the two transmission rollers respectively, the lower end of the conveying belt is wound around the power output end of the rotary driving assembly, and the adsorption plate is fixed to the mounting frame and corresponds to the position below the conveying belt on the upper layer. Multiple sets of adsorption cavities are evenly formed above the adsorption plate, multiple sets of adsorption through holes are evenly formed in the conveying belt, the limiting plate is fixed to the left end of the mounting frame, and a gap exists between the lower portion of the limiting plate and the upper end face of the conveying belt. The pole piece conveying device has the advantages that the end of a pole piece can be limited, so that the falling position of the cut pole piece is accurate, and the pole piece can be conveyed at the accurate position in the conveying process.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery pole piece manufacturing equipment field, especially in a kind of pole piece cutting mechanism. BACKGROUND

[0002] Winding and lamination are the most core links of lithium battery middle section battery assembly process, and are two different battery manufacturing processes.Winding is a kind of production process that the pole piece, separator and terminal tape after sizing are wound into pole core.Lamination is a kind of production process that pole piece and separator are alternately stacked together to finally complete multi-layer lamination pole core.For laminated lithium battery, the pole piece is cut out from pole piece material belt after the outline of the pole piece is punched out, and the pole piece is cut off to form a pole piece with a specific shape and size, and then the pole piece is conveyed to the subsequent process by a conveying belt.There is a certain gap between the pole piece cutting station and the conveying belt.Under the action of gravity, the pole piece falls on the conveying belt after cutting.For large-size pole piece, the front end of the pole piece falls on the conveying belt accurately during cutting.However, for small-size pole piece, the front end of the pole piece is suspended during cutting, and the weight of the pole piece itself is small.The position is easy to deviate during the falling process after cutting, so that the position error of the pole piece on the conveying belt is large, which is not conducive to the subsequent process.Therefore, it is necessary to manufacture a pole piece cutting mechanism to solve the above problems. SUMMARY

[0003] The utility model aims at providing a kind of pole piece cutting mechanism to solve the problems mentioned in the background art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A kind of pole piece cutting mechanism, including workbench, cutting assembly and conveying assembly, cutting assembly and conveying assembly are respectively fixed on the upper left and right sides of workbench, conveying assembly includes mounting bracket, rotary drive assembly, transmission roller, conveying belt, adsorption plate and limiting plate, mounting bracket is fixed on workbench, rotary drive assembly is fixed in the middle part of mounting bracket, transmission roller is set two groups and is rotatably installed at the left and right ends of mounting bracket, the left and right ends of conveying belt are respectively wound on two groups of transmission roller and the lower end is wound on the power output end of rotary drive assembly, adsorption plate is fixed on mounting bracket and corresponds to the lower side of upper conveying belt, a plurality of adsorption cavities are uniformly arranged above adsorption plate, adsorption cavities are communicated with suction equipment through pipeline, a plurality of adsorption through holes are uniformly arranged on conveying belt, limiting plate is fixed on the left end of mounting bracket and there is gap between the lower side and the upper end surface of conveying belt.

[0006] Further description of the utility model: limiting plate is made of transparent material.

[0007] The further description of the utility model: the conveying assembly still includes a cleaning brush, the cleaning brush is fixed on the mounting frame and the brush end is in contact with the lower end surface of the conveying belt.

[0008] The further description of the utility model: the cutting assembly includes a lower mounting seat, an upper mounting seat, a driven roller, a driving roller, a limiting roller, a rotary motor, a first lifting driving assembly, a cutting upper die and a cutting lower die, the lower mounting seat is fixed above the workbench, the upper mounting seat is fixed above the left side of the lower mounting seat, the driven roller, the driving roller and the limiting roller are rotatably installed on the upper mounting seat, the driven roller is corresponding to the left side of the driving roller, the limiting roller is corresponding to the upper side of the driving roller, the rotary motor is fixed on the upper mounting seat and is drivingly connected with one end of the driving roller, the first lifting driving assembly is fixed on the upper end of the upper mounting seat, the cutting lower die is fixed on the right side above the lower mounting seat, the upper end surface of the cutting lower die is corresponding to the left side of the limiting plate, and the cutting upper die is fixed on the power output end of the first lifting driving assembly and is corresponding to the upper side of the cutting lower die.

[0009] The further description of the utility model: still include leveling assembly, leveling assembly includes second lifting driving assembly, movable base plate, connecting frame, movable pressing plate, guide column and guide sleeve, second lifting driving assembly is fixed on the workbench and the power output end is upward, movable base plate is fixed on the power output end of second lifting driving assembly and is corresponding to the lower side of the conveying belt, connecting frame sets up two groups and is fixed on the upper side of movable base plate before and after respectively, the front and rear ends of movable pressing plate are fixed on the upper end of two sets of connecting frames respectively, movable pressing plate is corresponding to the upper side of the conveying belt, the upper end of guide column is fixed on movable base plate, guide sleeve is fixed on the workbench, the lower end of guide column is threaded through the workbench and is slidably connected with guide sleeve, guide column and guide sleeve each set up four groups and are corresponding to the four corners of movable base plate respectively.

[0010] The utility model discloses the beneficial effect is: the pole piece material belt is conveyed from the former process to cutting assembly, after threading through cutting assembly, the right end of pole piece material belt is in contact with the left end surface of limiting plate, at this moment, cutting assembly carries out cutting to pole piece material belt, then the pole piece after cutting falls on the conveying belt along the limiting plate, thereby guaranteeing the positional accuracy of falling, the suction equipment sucks in the adsorption cavity, makes the airflow downwardly pass through adsorption through -hole and adsorption cavity in proper order, thereby enabling the conveying belt to adsorb pole piece by air pressure, making pole piece not deviate in the conveying process, and rotary drive assembly drives the conveying belt and transports pole piece to the subsequent process.The advantage of the design is that: can limit the end of pole piece when cutting, thereby making the falling position of pole piece after cutting accurate, and also can maintain accurate position to convey in the conveying process. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the overall structure diagram of the utility model;

[0012] Figure 2 is the structure diagram of the cutting assembly in the utility model (the upper mounting seat part is hidden) ;

[0013] Figure 3 is the partial sectional view of the conveying assembly in the utility model;

[0014] Figure 4 is Figure 3 the partial enlarged view of position A in the utility model;

[0015] Figure 5 is the structure diagram of the leveling assembly in the utility model;

[0016] Mark explanation:

[0017] 1, workbench; 2, cutting assembly; 21, lower mounting seat; 22, upper mounting seat; 23, driven roller;

[0018] 24, driving roller; 25, limiting roller; 26, rotary motor; 27, first lifting drive assembly;

[0019] 28, cutting upper die; 29, cutting lower die; 3, conveying assembly; 31, mounting frame; 32, rotary drive assembly; 33, transmission roller; 34, conveying belt; 341, suction through hole; 35, suction plate; 351, suction cavity; 36, limiting plate; 37, cleaning brush; 4, leveling assembly; 41, second lifting drive assembly; 42, movable bottom plate; 43, connecting frame; 44, movable pressing plate; 45, guide column; 46, guide sleeve. Specific implementation

[0020] The utility model is further explained in connection with the drawings as follows:

[0021] As Figures 1 to 5 shown, a pole piece cutting mechanism, including workbench 1, cutting assembly 2 and conveying assembly 3, cutting assembly 2 and conveying assembly 3 are fixed respectively in the upper left and right sides of workbench 1, conveying assembly 3 includes mounting frame 31, rotary drive assembly 32, transmission roller 33, conveying belt 34, suction plate 35 and limiting plate 36, mounting frame 31 is fixed on workbench 1, rotary drive assembly 32 is fixed in the middle part of mounting frame 31, transmission roller 33 sets up two groups and is rotatably installed in the left and right two ends of mounting frame 31, the left and right two ends of conveying belt 34 are respectively wound on two groups of transmission roller 33 and the lower end is wound on the power output end of rotary drive assembly 32, suction plate 35 is fixed on mounting frame 31 and corresponds to the lower side of the upper conveying belt 34, a plurality of suction cavities 351 are uniformly arranged on the upper side of suction plate 35, suction cavity 351 is communicated with suction equipment through pipeline, a plurality of suction through holes 341 are uniformly arranged on conveying belt 34, limiting plate 36 is fixed on the left end of mounting frame 31 and there is a gap between the lower side and the upper end surface of conveying belt 34.

[0022] The pole piece material belt is conveyed from the previous process to the cutting assembly 2. After passing through the cutting assembly 2, the right end of the pole piece material belt is in contact with the left end face of the limiting plate 36. At this time, the cutting assembly 2 cuts the pole piece material belt, and the cut pole piece falls onto the conveying belt 34 along the limiting plate 36, thereby ensuring the position accuracy of the falling position. The suction device sucks air into the suction cavity 351, and the air flow passes through the suction holes 341 and the suction cavity 351 in turn downward, thereby enabling the conveying belt 34 to adsorb the pole piece by air pressure, so that the pole piece does not deviate during conveying. The rotary drive assembly 32 drives the conveying belt 34 to convey the pole piece to the right. After the pole piece passes through the gap below the limiting plate 36, it continues to be conveyed to the next process. The advantage of the design is that the end of the pole piece can be limited during cutting, so that the falling position of the cut pole piece is accurate, and the position can also be maintained accurately during conveying.

[0023] The limiting plate 36 is made of transparent material, which can facilitate observation of the conveying of the pole piece below the limiting plate 36, so as to judge whether the pole piece interferes with the lower end face of the limiting plate 36 during conveying.

[0024] The conveying assembly 3 further comprises a cleaning brush 37 fixed on the mounting frame 31 and in contact with the lower end face of the conveying belt 34. The cleaning brush 37 is used to clean the dust on the conveying belt 34.

[0025] The cutting assembly 2 comprises a lower mounting seat 21, an upper mounting seat 22, a driven roller 23, a driving roller 24, a limiting roller 25, a rotary motor 26, a first lifting drive assembly 27, a cutting upper die 28 and a cutting lower die 29. The lower mounting seat 21 is fixed above the workbench 1. The upper mounting seat 22 is fixed above and left of the lower mounting seat 21. The driven roller 23, the driving roller 24 and the limiting roller 25 are rotatably mounted on the upper mounting seat 22. The driven roller 23 corresponds to the left side of the driving roller 24. The limiting roller 25 corresponds to the upper side of the driving roller 24. The rotary motor 26 is fixed on the upper mounting seat 22 and drivingly connected to one end of the driving roller 24. The first lifting drive assembly 27 is fixed on the upper end of the upper mounting seat 22. The cutting lower die 29 is fixed on the right side of the lower mounting seat 21. The upper end face of the cutting lower die 29 corresponds to the left side of the limiting plate 36. The cutting upper die 28 is fixed on the power output end of the first lifting drive assembly 27 and corresponds to the upper side of the cutting lower die 29.

[0026] The pole piece material belt is conveyed from the previous process to the cutting assembly 2, the material belt passes between the driving roller 24 and the limiting roller 25 after passing above the driven roller 23, the limiting roller 25 is pressed on the material belt by gravity, under the drive of the rotating motor 26, the pole piece is conveyed to the right, and after the limiting plate 36 limits the end of the pole piece, the first lifting drive assembly 27 drives the cutting upper die 28 to descend, and the cutter on the cutting upper die 28 and the cutting lower die 29 is cut to cut off the material belt.

[0027] In the design, the flattening assembly 4 is also included, the flattening assembly 4 includes the second lifting drive assembly 41, the movable bottom plate 42, the connecting frame 43, the movable pressing plate 44, the guide column 45 and the guide sleeve 46, the second lifting drive assembly 41 is fixed on the workbench 1 and the power output end faces upward, the movable bottom plate 42 is fixed on the power output end of the second lifting drive assembly 41 and corresponds to the below of the conveying belt 34, the connecting frame 43 is provided with two groups and is fixed on the upper sides of the movable bottom plate 42, the front and rear ends of the movable pressing plate 44 are fixed on the upper ends of the two groups of connecting frames 43 respectively, the movable pressing plate 44 corresponds to the above of the conveying belt 34, the upper end of the guide column 45 is fixed on the movable bottom plate 42, the guide sleeve 46 is fixed on the workbench 1, the lower end of the guide column 45 passes through the workbench 1 and is slidably connected with the guide sleeve 46, and the guide column 45 and the guide sleeve 46 are each provided with four groups and correspond to the four corners of the movable bottom plate 42.

[0028] In order to ensure that the pole piece is fully adsorbed by the adsorbed through hole 341 and is flat enough when the pole piece is conveyed on the conveying belt 34, the movable bottom plate 42 is repeatedly lifted and lowered by the second lifting drive assembly 41, so that the movable pressing plate 44 continuously performs the downward pressing action, all the pole pieces on the conveying belt 34 are pressed downward, so that they are flat and completely adhere to the surface of the conveying belt 34 and are fully adsorbed by the adsorbed through hole 341.

[0029] The above is not any limitation on the technical range of the utility model, any modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model still belong to the range of the technical scheme of the utility model.

Claims

1. A pole piece cutting mechanism characterized by: The utility model provides a cutting and conveying device, including workbench, cutting assembly and conveying assembly, cutting assembly and conveying assembly are fixed above left and right sides of workbench respectively, conveying assembly includes mounting frame, rotary drive assembly, transmission roller, conveying belt, adsorption plate and limiting plate, mounting frame is fixed on workbench, rotary drive assembly is fixed in the middle part of mounting frame, transmission roller sets up two groups and is rotatablely installed at left and right ends of mounting frame respectively, the left and right ends of conveying belt are set up on two groups transmission roller respectively and the lower end is set up on the power output end of rotary drive assembly, adsorption plate is fixed on mounting frame and corresponds to the below of conveying belt of upper layer, a plurality of adsorption cavities are uniformly arranged above adsorption plate, adsorption cavity is communicated with suction equipment through pipeline, a plurality of adsorption through -hole are uniformly arranged on conveying belt, limiting plate is fixed at the left end of mounting frame and there is gap between the lower side and the upper end surface of conveying belt.

2. A pole piece cutting mechanism according to claim 1, characterized in that: The limiting plate is made of transparent material.

3. The pole piece cutting mechanism of claim 1, wherein: The conveying assembly further comprises a cleaning brush, the cleaning brush is fixed on the mounting frame and the brush end is in contact with the lower end surface of the conveying belt.

4. The pole piece cutting mechanism of claim 1, wherein: The cutting assembly comprises a lower mounting seat, an upper mounting seat, a driven roller, a driving roller, a limiting roller, a rotary motor, a first lifting drive assembly, a cutting upper die, and a cutting lower die. The lower mounting seat is fixed above the workbench. The upper mounting seat is fixed above and to the left of the lower mounting seat. The driven roller, the driving roller, and the limiting roller are rotatably mounted on the upper mounting seat. The driven roller corresponds to the left side of the driving roller. The limiting roller corresponds to the upper side of the driving roller. The rotary motor is fixed on the upper mounting seat and is drivingly connected to one end of the driving roller through a power output end. The first lifting drive assembly is fixed to the upper end of the upper mounting seat. The cutting lower die is fixed to the right side of the upper mounting seat. The upper end surface of the cutting lower die corresponds to the left side of the limiting plate. The cutting upper die is fixed to the power output end of the first lifting drive assembly and corresponds to the upper side of the cutting lower die.

5. The pole piece cutting mechanism of claim 1, wherein: The utility model also includes a leveling assembly. The leveling assembly comprises a second lifting drive assembly, a movable base plate, a connecting frame, a movable pressing plate, guide columns, and guide sleeves. The second lifting drive assembly is fixed on the workbench with a power output end facing upward. The movable base plate is fixed to the power output end of the second lifting drive assembly and corresponds to the lower side of the conveying belt. The connecting frame is provided with two groups and is fixed to the upper side of the movable base plate. The movable pressing plate is fixed to the upper end of the connecting frame. The movable pressing plate corresponds to the upper side of the conveying belt. The upper end of the guide column is fixed to the movable base plate. The guide sleeve is fixed to the workbench. The lower end of the guide column penetrates through the workbench and is slidingly connected to the guide sleeve. The guide column and the guide sleeve are each provided with four groups and correspond to the four corners of the movable base plate.

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