Sheet material vacuum adsorption conveyer belt
Technical Field
The invention relates to the field of lithium batteries, in particular to a sheet vacuum adsorption conveying belt.
Background
Currently, lithium battery enterprises worldwide are mainly concentrated in korea, china and japan. Japan monopolized the global battery industry for the interior of the vehicle before the 21 st century, and its main product was a secondary lithium battery. Later, a certain market is gradually occupied in the world with research and development of lithium battery production technology in korea and china. The foreign famous manufacturers of lithium batteries include Sanyo, Boshi, Samsung, Song, Sony, Toshiba, Ford, general, Benz, etc. These manufacturers typically have a complete lithium battery production line that includes lithium battery winding equipment and tab welding equipment, which are typically provided by specialized equipment manufacturers. According to investigation statistics, the scale of the lithium battery cell equipment in 2016 is 75 hundred million yuan, and the comparable increase exceeds 100%. The domestic equipment accounts for 55 billion yuan, and the domestic proportion is expected to be improved in the future. The capacity and performance of the conventional power battery can not meet the newly increased requirements of a terminal electric vehicle and an energy storage market, and the lithium battery equipment is increased at a high speed for 3-5 years in the future. The power battery is influenced by large-scale expansion of the power battery, the capacity of the single power battery is large, and the production efficiency and the performance of the lamination process are excellent. Many domestic leading cell manufacturers have production expansion plans for square aluminum shell batteries, and the demand for lamination process equipment is increased over 2016. In the lithium battery lamination machine equipment industry in China, the situation of cutting data in the past green forest and sanden is changed to the situation of cutting data in the present. Because the power battery has higher performance requirement and strict requirements on equipment stability, fineness, high speed and the like, high-performance equipment is preferentially considered in purchasing of enterprises, so that the market of acceleration equipment is centralized to a full-strength equipment enterprise, the competition of the low-end market equipment enterprise is increased, and small enterprises force the price reduction to take a path of thin profit and more sales for survival. The power lithium battery mainly comprises four parts, namely an isolating membrane, a cathode, an anode and electrolyte, and is mainly divided into three parts according to a forming process: sliced lithium batteries, laminated lithium batteries, and wound lithium batteries. In the sliced lithium battery, the isolation film is very soft, so that the alignment degree of the isolation film is difficult to ensure in the processing process, and the quality of the battery is reduced, so that the scheme is rarely used in the industry. The laminated lithium battery is structurally simpler in processing technology than a lithium battery processed by a slicing technology, because the isolation film is continuous in the whole lithium battery and the performance of the isolation film is almost the same as that of the sliced lithium battery, and the laminated lithium battery is commonly used in the industry to replace the sliced lithium battery. The square winding lithium battery has only one cathode pole piece and one anode pole piece in the whole battery, and the processing technology is simpler, so the winding lithium battery is widely applied at present.
The square winding lithium battery is almost used before the laminated lithium battery does not appear, but along with continuous research in the industry, along with the gradual increase of the energy density requirement of the battery, a battery core enterprise tends to make the battery larger and larger, and the single battery core has the main problems of safety, production efficiency, control of winding or overlapping of a pole piece and a diaphragm, production line collective efficiency and the like. The excellent performance of the laminated lithium battery is slowly presented, the popularization of the laminated lithium battery is a great trend in the future, the problem of the processing efficiency of the laminated lithium battery is a necessary way for popularizing the laminated lithium battery, and the laminating process can still be a mainstream trend along with the continuous innovation and progress of domestic laminated equipment enterprises and the transverse extension of large lithium battery equipment enterprises. GGII data of a high-industrial lithium battery research institute show that the soft-package battery loading capacity of China is about 3.99GWH in 1-10 months in 2019, the specified GWH is reduced by 10% on a same scale, and only accounts for 8.6% of the total loading capacity and accounts for 13.4% of the total loading capacity in the last year. The square battery has the machine loading of about 39.12GWH, is increased by 49 percent in the same ratio and accounts for 84.35 percent of the total machine loading.
The lamination process is a key process in the manufacturing process of the soft package battery, and before lamination, isolating films are required to be coated on the upper surface and the lower surface of a pole piece, and the isolating films are tightly pressed and attached to the surface of the pole piece. The following technical difficulties need to be solved in the process of automatically designing the process: 1. before the pole piece is coated with the isolating film, the pole piece needs to be conveyed forwards linearly, and the surface of the pole piece is cleaned and dedusted to ensure the coating quality; meanwhile, in the process of forward conveying the pole pieces by the conveyor belt, the pole pieces are pressed on the surface of the conveyor belt, so that the surface of the conveyor belt needs to be cleaned and dedusted synchronously to prevent dust or impurities on the surface of the conveyor belt from polluting the surface of the pole pieces. 2. In the processes of linear transmission and surface cleaning of the pole piece, the brush rotates to cause the position deviation of the pole piece when the surface of the pole piece is cleaned, so that the position stability of the pole piece in the transmission process needs to be ensured.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and provides a sheet material vacuum adsorption conveying belt which has the functions of automatic cleaning and dust removal and pole piece position fixing and realizes automatic cleaning and conveying before pole pieces are cut.
The technical scheme adopted by the invention is as follows: a sheet vacuum adsorption conveying belt comprises a conveying support platform, a conveying tensioning roller, a vacuum conveying belt, a conveying driving component and a belt cleaning component, wherein the conveying support platform is horizontally arranged, and a horizontal conveying platform is arranged on the conveying support platform; the conveying tensioning rollers comprise two rollers which are respectively and rotatably arranged at two ends of the conveying supporting platform; the vacuum conveying belt is sleeved on the conveying tensioning roller and tensioned by the conveying tensioning roller, the back surface of the vacuum conveying belt is attached to the horizontal conveying table, a vacuum suction hole in the vacuum conveying belt is communicated with an air cavity formed in the horizontal conveying table, and a vacuum negative pressure generated in the air cavity enables the vacuum suction hole to adsorb and fix the pole piece on the surface of the vacuum conveying belt; the conveying driving component is arranged on one side of the conveying support and connected with the vacuum conveying belt.
Preferably, the belt cleaning component is arranged on the back of the horizontal conveying table and connected with the output end of the conveying driving component, the conveying driving component synchronously drives the vacuum conveying belt and the belt cleaning component, and the surface of the vacuum conveying belt is cleaned by the belt cleaning component while the vacuum conveying belt conveys the pole pieces.
Preferably, the conveying driving part comprises a conveying motor, a conveying synchronous wheel, an adjusting seat, an adjusting roller and an adjusting rod, wherein the conveying synchronous wheel is rotatably arranged at the back of the horizontal conveying table and tensions the vacuum conveying belt; the conveying motor is arranged on the side part of the horizontal conveying table, the output end of the conveying motor is connected with the conveying synchronous wheel and drives the conveying synchronous wheel to rotate, and the conveying synchronous wheel drives the vacuum conveying belt to move.
Preferably, the two adjusting seats are connected to the back of the horizontal conveying table in a rotatable mode at intervals; the adjusting roller is rotatably connected to the two adjusting seats; the adjusting rod is arranged on the side part of the adjusting seat, and the adjusting rod is close to or far away from the adjusting seat so as to change the angle of the adjusting seat and adjust the tension force.
Preferably, the belt cleaning component comprises a belt cleaning cavity, a belt cleaning brush and a belt cleaning suction pipe, wherein the belt cleaning cavity is arranged at the back of the horizontal conveying table; the two ends of the conveying synchronous wheel are connected to the side wall of the belt cleaning cavity.
Preferably, the cleaning brush and the conveying synchronous wheel are arranged in parallel at intervals and are positioned at the back of the conveying synchronous wheel; the two ends of the belt cleaning brush are rotatably connected to the side wall of the belt cleaning chamber and are connected with the transmission synchronizing wheel through a transmission belt, and the transmission synchronizing wheel rotates and simultaneously drives the belt cleaning brush to rotate so as to clean the surface of the vacuum transmission belt.
Preferably, the belt cleaning suction pipe is arranged on the belt cleaning cavity and communicated with the inside of the belt cleaning cavity, and the belt cleaning suction pipe sucks out dust and sundries generated in the cleaning process.
The invention has the beneficial effects that:
aiming at the defects and shortcomings in the prior art, the invention independently develops and designs the sheet material vacuum adsorption conveying belt which has the functions of automatic cleaning and dust removal and pole piece position fixing and realizes the automatic cleaning and conveying function before pole pieces are cut. Specifically, the method comprises the following steps: the invention is designed originally aiming at the cleaning and conveying of the pole piece before the film sticking, and simultaneously realizes the linear transmission of the pole piece, the fixation of the pole piece and the cleaning and dust removal of the belt. The vacuum conveying device is horizontally arranged to form a horizontal conveying plane, the horizontal conveying plane takes a vacuum conveying belt as a conveying carrier, the surface of the vacuum conveying belt is provided with a vacuum suction hole, a pole piece is adsorbed and fixed by the vacuum conveying belt and then is linearly conveyed forwards along the horizontal conveying plane, and the vacuum conveying belt synchronously performs surface cleaning through a belt cleaning component arranged on the back surface of the horizontal conveying plane; the vacuum conveying assembly adsorbs and fixes the pole piece on the surface of the vacuum conveying belt through downward vacuum adsorption force, so that the position of the pole piece is fixed while the pole piece is conveyed linearly, and the pole piece is prevented from being deviated in the cleaning process on the surface of the pole piece. Meanwhile, the belt cleaning component moves synchronously with the vacuum conveyor belt, and when the vacuum conveyor belt conveys the pole piece, the belt cleaning component cleans and removes dust on the surface of the vacuum conveyor belt which is in contact with the pole piece, so that dust or sundries on the surface of the vacuum conveyor belt are effectively reduced and are adhered to the surface of the pole piece, and the cleanliness of the surface of the pole piece is ensured.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the second embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1 to 2, the technical solution adopted by the present invention is as follows: a sheet vacuum adsorption conveyor belt comprises a conveying support platform 511, a conveying tension roller 512, a vacuum conveyor belt, a conveying driving part and a belt cleaning part, wherein the conveying support platform 511 is horizontally arranged, and a horizontal conveying platform 513 is arranged on the conveying support platform 511; the two conveying tension rollers 512 are provided, and the conveying tension rollers 512 are respectively rotatably provided at both ends of the conveying support 511; the vacuum conveyor belt is sleeved on the conveying tension roller 512 and is tensioned by the conveying tension roller 512, the back surface of the vacuum conveyor belt is tightly attached to the horizontal conveying table 513, a vacuum suction hole in the vacuum conveyor belt is communicated with an air cavity 514 formed in the horizontal conveying table 513, and a vacuum negative pressure generated in the air cavity 514 enables the vacuum suction hole to adsorb and fix the pole piece on the surface of the vacuum conveyor belt; the transfer driving unit is disposed at one side of the transfer support 511 and connected to the vacuum transfer belt.
The belt cleaning component is arranged on the back of the horizontal conveying table 513 and is connected with the output end of the conveying driving component, the conveying driving component synchronously drives the vacuum conveying belt and the belt cleaning component, and the vacuum conveying belt conveys the pole pieces and simultaneously the belt cleaning component cleans the surface of the vacuum conveying belt.
The transmission driving part comprises a transmission motor 515, a transmission synchronous wheel 517, an adjusting seat 5110, an adjusting roller 5111 and an adjusting rod 519, wherein the transmission synchronous wheel 517 is rotatably arranged at the back of the horizontal transmission platform 513 and tensions the vacuum transmission belt; the transmission motor 515 is disposed at a side portion of the horizontal transmission table 513, and an output end of the transmission motor is connected to the transmission synchronizing wheel 517, and drives the transmission synchronizing wheel 517 to rotate, and the transmission synchronizing wheel 517 drives the vacuum transmission belt to move.
The two adjusting seats 5110 are connected to the back of the horizontal conveying table 513 in a rotatable manner at intervals; the adjusting roller 5111 is rotatably connected to the two adjusting seats 5110; the adjusting rod 519 is disposed at a side portion of the adjusting seat 5110, and the adjusting rod 519 is close to or away from the adjusting seat 5110 so as to change an angle of the adjusting seat 5110 and adjust a tension.
The belt cleaning member includes a belt cleaning chamber provided at the back of the horizontal transfer table 513, a belt cleaning brush 516, and a belt cleaning suction pipe 518; both ends of the transfer synchronizing wheel 517 are connected to the side wall of the belt cleaning chamber.
The belt cleaning brush 516 and the conveying synchronizing wheel 517 are arranged in parallel at intervals and are positioned at the back of the conveying synchronizing wheel 517; both ends of the belt cleaning brush 516 are rotatably connected to the side walls of the belt cleaning chamber and are connected to a transfer synchronizing wheel 517 via a transmission belt, and the transfer synchronizing wheel 517 rotates while driving the belt cleaning brush 516 to rotate so as to clean the surface of the vacuum transmission belt.
The belt cleaning suction pipe 518 is disposed on the belt cleaning chamber and communicated with the inside of the belt cleaning chamber, and the belt cleaning suction pipe 518 sucks out dust and foreign materials generated during the cleaning process.
Furthermore, the invention designs a sheet material vacuum adsorption conveying belt which has the functions of automatic cleaning and dust removal and pole piece position fixing and realizes the function of automatic cleaning and conveying before pole pieces are cut. Specifically, the method comprises the following steps: the invention is designed originally aiming at the cleaning and conveying of the pole piece before the film sticking, and simultaneously realizes the linear transmission of the pole piece, the fixation of the pole piece and the cleaning and dust removal of the belt. The vacuum conveying device is horizontally arranged to form a horizontal conveying plane, the horizontal conveying plane takes a vacuum conveying belt as a conveying carrier, the surface of the vacuum conveying belt is provided with a vacuum suction hole, a pole piece is adsorbed and fixed by the vacuum conveying belt and then is linearly conveyed forwards along the horizontal conveying plane, and the vacuum conveying belt synchronously performs surface cleaning through a belt cleaning component arranged on the back surface of the horizontal conveying plane; the vacuum conveying assembly adsorbs and fixes the pole piece on the surface of the vacuum conveying belt through downward vacuum adsorption force, so that the position of the pole piece is fixed while the pole piece is conveyed linearly, and the pole piece is prevented from being deviated in the cleaning process on the surface of the pole piece. Meanwhile, the belt cleaning component moves synchronously with the vacuum conveyor belt, and when the vacuum conveyor belt conveys the pole piece, the belt cleaning component cleans and removes dust on the surface of the vacuum conveyor belt which is in contact with the pole piece, so that dust or sundries on the surface of the vacuum conveyor belt are effectively reduced and are adhered to the surface of the pole piece, and the cleanliness of the surface of the pole piece is ensured.
The embodiments of the present invention are merely illustrative of specific embodiments thereof, and are not intended to limit the scope thereof. Since the present invention can be modified by a person skilled in the art, the present invention is not limited to the embodiments described above.