A kind of coating machine oven
Technical field
The present invention relates to the pole piece coating technique, particularly relate to a kind of coating machine oven.
Background technology
The pole piece of lithium ion battery forms through drying after upward applying slurry at base material (Copper Foil or aluminium foil); Coating machine oven is used for the oven dry of pole piece; General coating machine oven all adopts floating roller to carry pole piece, through the up-down of 4 screw rod control of manual adjustments top tuyere.The Chinese patent of the patent No. 201010116483.3 discloses a kind of suspension type coating machine baking oven; Comprise oven main body (the inside and outside courage of baking oven, oven door, baking oven frame), ship type independent air intake chamber, modified tuyere, drying chamber, wind chamber, circulation air compartment, circulation air path, air blast, heater etc.; It is characterized in that adopting the inner wind-force of coating machine oven to come the floated structure of support substrate; Solved the friction problem of coating machine inner bracing piece to matrix; Help improving the product quality of coating, increase baking oven length, enhance productivity etc. to accelerate coating speed.This floated baking oven has solved the friction problem that floating roller is carried pole piece, but still has following defective:
(1) can be for the wind-force that makes tuyere enough in supporting pole piece; Pole piece is suspended in the drying chamber; The air port that need dwindle tuyere makes its wind-force more concentrated, receives at pole piece under the situation of excessive wind-force, and the slurry that applies on the pole piece is dispelled easily; Cause pole piece coating skewness, influence the pole piece quality; Also there is simultaneously the unstable problem of pole piece operation.
(2) the lifting structure of last tuyere is not designed, the still up-down through 4 screw rods control of manual adjustments top tuyere, because very long (more than tens meters) of coating machine oven, time-consuming, the effort of manual adjustments, and cause box deformation easily.
(3) because floated required air quantity is big, the drying chamber internal gas pressure is high, has potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is a kind of coating machine oven to be provided, to overcome the above-mentioned defective of prior art.
Technical problem of the present invention solves through following technical scheme:
A kind of coating machine oven comprises that feed end assists auxiliary baking oven of baking oven, discharge end and the main baking oven between auxiliary baking oven of feed end and the auxiliary baking oven of discharge end; Wherein, the auxiliary baking oven of auxiliary baking oven of said feed end and said discharge end is floating roller brace type baking oven, and said main baking oven is floated baking oven.
The floating roller brace type baking oven that is positioned at feed end and discharge end can play certain supporting role to pole piece on the one hand; Thereby possibly reduce the pole piece needed wind-force that in main baking oven, suspends; On the other hand; Utilize the floating roller brace type baking oven of feed end that pole piece is carried out soft prebake conditions, can guarantee effectively on the pole piece that coated slurry can not be dispelled and causes skewness, guarantees the baking quality of pole piece in main baking vessel; Floated baking oven helps improving the transfer rate of pole piece as main baking oven, increases the contact area of hot blast and pole piece band.
Before the pole piece baking; Need to go up rise the carrying out manual work of static pressure chamber and wear band (being about to pole piece wears to discharge end from feed end); Because baking oven is very long; Manually rise and go up static pressure chamber inconvenience; For addressing this problem, in preferred version of the present invention, said floated baking oven comprises frames, blower fan, heater, air inlet, drying chamber, the exhaust outlet that is communicated with drying chamber, last static pressure chamber, the up-draught mouth that is fixedly connected with last static pressure chamber, following static pressure chamber and the canyon mouth that is fixedly connected with following static pressure chamber; It also comprises controls the automatic hoisting mechanism of going up static pressure chamber and last tuyere lifting moving.
Further, said automatic hoisting mechanism comprise the cylinder that is fixed on the said frames, be fixed on front end fixed block on the cylinder telescopic shaft, a plurality of be fixed on said go up on the static pressure chamber the rear end fixed block and with many identical steel wire ropes of said rear end fixed block quantity; One end of said many steel wire ropes all is connected with said front end fixed block, the other end is connected with a rear end fixed block respectively, thereby said cylinder is used to spur said many steel wire ropes the said static pressure chamber of going up is risen.By many steel wire ropes of cylinder pulling, can each position of going up the static pressure chamber be risen simultaneously reposefully, simple in structure and can avoid the static pressure chamber to be out of shape because of rising steadily inner generation torsion on each position.
Further, said automatic hoisting mechanism comprises the synchronizing wheel of four rear end fixed blocks, four steel wire ropes and four axle axial levels; Said four rear end fixed blocks are separately fixed at said four jiaos of going up the static pressure chamber; The synchronizing wheel of said four axle axial levels is individually fixed on the said frames, the fixed position lay respectively at said four rear end fixed blocks directly over; One end of said four steel wire ropes is connected with said four rear end fixed blocks respectively, and after the synchronizing wheel guiding of said four axle axial levels, is connected with said front end fixed block.This improvement project utilizes synchronizing wheel to lead, and can make that four angles in static pressure chamber are simultaneously vertically stressed, and it is more steady to upgrade, and only needs a cylinder just can realize the auto-update function.The synchronizing wheel that in the practice a plurality of axle axial levels can also be set leads to steel wire rope.
Preferably, said floated baking oven also comprises the venting that is communicated with said drying chamber, and during work, said venting is sealed by rupture pressure disc, and rupture pressure disc breaks when the drying chamber internal gas pressure surpasses the limit atmospheric pressure value that rupture pressure disc can bear.Floated oven for drying room pressure is high, and the design of venting can guarantee the security of baking oven work.
Preferably, also comprise exhaust duct and exhaust blower, an end of said exhaust duct is connected with said exhaust outlet, the other end is communicated with outside atmosphere, and said exhaust blower is used for the air of exhaust duct is drained in the outside atmosphere.Though oven dry gas is pollution-free, indoor as if directly entering, indoor temperature can obviously rise; And will be constant, the great consumed energy of lowering the temperature has atomized owing to get into the gas major part of exhaust outlet; Certain weight is arranged; Suction by exhaust blower all feeds the gas in the exhaust duct in the atmosphere, and the energy has been practiced thrift in cooling greatly naturally.The design of venting has guaranteed the whole security of baking oven.
Description of drawings
Fig. 1 is the front view (removing the air channel) of suspension baking oven in a kind of coating machine oven of the present invention;
Fig. 2 is the automatic hoisting mechanism schematic perspective view of a kind of coating machine oven of the present invention;
Fig. 3 is the vertical view (removing exhaust duct) of suspension baking oven in a kind of coating machine oven of the present invention;
Fig. 4 is the right view (removing exhaust duct) of suspension baking oven in a kind of coating machine oven of the present invention;
Fig. 5 is the exhaust duct sketch map of a kind of coating machine oven of the present invention.
The specific embodiment
Contrast accompanying drawing below and combine preferred embodiment that the present invention is carried out detailed elaboration.
Consult accompanying drawing 1 to accompanying drawing 5:
A kind of coating machine oven comprises that feed end assists auxiliary baking oven of baking oven, discharge end and the main baking oven between auxiliary baking oven of feed end and the auxiliary baking oven of discharge end; Wherein, the auxiliary baking oven of auxiliary baking oven of said feed end and said discharge end is floating roller brace type baking oven, and said main baking oven is floated baking oven.Auxiliary baking oven of feed end and the auxiliary baking oven of discharge end all are circular arc, and main baking oven is horizontally disposed with.
Floated baking oven comprises heater, goes up static pressure chamber 01, goes up tuyere 02, down static pressure chamber 03, the automatic hoisting mechanism 08 of static pressure chamber 01 and 02 up-down of last tuyere is gone up in tuyere 04, drying chamber 05, exhaust outlet 06, exhaust outlet, circulation air port, air inlet and detachable observation panel 07 and control down.
Automatic hoisting mechanism 08 adopts cylinder pulling steel wire rope to drive and goes up static pressure chamber 01 and last tuyere 02 integral elevating, structure comprise lift cylinder 0801, cylinder support 0802,0803,4 scalable elasticities of front end fixed block steel wire rope 0804, synchronizing wheel back-up block 0805,0806,4 on wheel shaft is upright to the synchronizing wheels that are provided with synchronously: first synchronizing wheel 0807, second synchronizing wheel 0808, the 3rd synchronizing wheel 0809,0810,6 horizontally disposed synchronizing wheel of the 4th synchronizing wheel: the 5th synchronizing wheel 0811, the 6th synchronizing wheel 0812, the 7th synchronizing wheel 0813, the 8th synchronizing wheel 0814, the 9th synchronizing wheel 0815, the tenth synchronizing wheel 0816; Rear end fixed block 0817, lifting guide pillar 0818, guide rod fixed block 0819, limited block 0820, position-limiting ear 0821 and cutting ferrule; Cylinder support 0802 and synchronizing wheel back-up block 0805 are fixed on the top of frames 12, and lift cylinder 0801 is fixed on the cylinder support 0802, and wheel shaft 0806 is totally 10 synchronously; Be respectively applied for fixing first to the tenth synchronizing wheel; First to the tenth synchronizing wheel is fixed on the synchronizing wheel back-up block through synchronous wheel shaft, first to fourth synchronous axle axial level wherein, and the 6th to the tenth synchronous axle axial is vertical; Front end fixed block 0803 is fixed on the telescopic shaft of lift cylinder 0801; Rear end fixed block 0817 is fixed on the static pressure chamber 01, and last static pressure chamber 01 is fixedly connected with last tuyere 02, and steel wire rope 0804 passes frames 12 and supported by synchronizing wheel; Two ends are connected on preceding fixed block 0803 and the back fixed block 0817; Guide rod fixed block 0819 is fixed on the frames 12, and limited block 0820 is fixed on the guide rod fixed block 0819, and position-limiting ear 0821 is fixed on the static pressure chamber 01; Lifting guide pillar 0818 two ends are provided with screw thread; One end passes limited block 0820 and is threaded with it, and nut is fixed, and the other end passes position-limiting ear 0821; Nut is spacing; Position-limiting ear 0821 endoporus does not have screw thread, and its internal diameter can move with respect to lifting guide pillar 0818 under the drive of lift cylinder 0801 greater than the external diameter of lifting guide pillar 0818; Be fastened in when static pressure chamber 01 rises to extreme position with last tuyere 02 and snap in lifting guide pillar 0818, rise and support and safety effect.
Though the upgrading mechanism of present embodiment mode adopts the design of 10 synchronizing wheels, in practical application, can adjust synchronizing wheel quantity as the case may be, is not limited to 10.In like manner, the quantity of steel wire rope and back fixed block also can be carried out suitable choice according to length, the size of baking oven, is not limited to four, and baking oven should increase the quantity of steel wire rope and back fixed block more greatly, and stressed evenly to guarantee each position, it is stable to go up and down.
The trend of said 4 steel wire ropes is following:
First steel wire rope one end connects the rear end fixed block under first synchronizing wheel 0807, passes frames, and the other end is through be connected on the front end fixed block through the gear teeth of the 5th synchronizing wheel behind the gear teeth of first synchronizing wheel again; Second steel wire rope one end connects the rear end fixed block under second synchronizing wheel 0808, passes frames, and the other end is through be connected on the front end fixed block through the gear teeth of the 6th synchronizing wheel behind the gear teeth of second synchronizing wheel again; The 3rd steel wire rope one end connects the rear end fixed block under the 3rd synchronizing wheel 0809, passes frames, and the other end is connected to the front end fixed block through the gear teeth of the 3rd synchronizing wheel, the gear teeth of the 7th synchronizing wheel, the gear teeth of the 8th synchronizing wheel; The 4th steel wire rope one end connects the rear end fixed block under the 4th synchronizing wheel 0810, passes frames, and the other end is connected to the front end fixed block through the gear teeth of the 4th synchronizing wheel, the gear teeth of the 9th synchronizing wheel, the gear teeth of the tenth synchronizing wheel; When the baking oven inner-threading, press the rising button, the lift cylinder telescopic shaft is return; The static pressure chamber is gone up in the pulling of drive steel wire rope and last tuyere rises, and after rising put in place, manual work snapped in lifting guide pillar with cutting ferrule; Make that going up tuyere separates with following tuyere; After band is worn in manual work, take off cutting ferrule, press the decline button; The lift cylinder telescopic shaft stretches out; Make and go up static pressure chamber and the decline of last tuyere,, carry out the pole piece oven dry and realize that pole piece is suspended in the baking oven near following tuyere.
The coating machine oven of this embodiment also comprises the exhaust duct 10 and exhaust blower 09 and venting 11 that is communicated with ambient atmosphere.
Tell several air ports on the exhaust duct 10 and can be connected to exhaust outlet, an air port connects the exhaust outlet 06 of a joint baking oven, and exhaust blower 09 connects exhaust duct 10 middle parts; Fixing by frames 12, exhaust outlet 06 links to each other with drying chamber 05, and exhaust outlet 06 place is provided with the wind flow control valve; Exhaust blower 09 is evacuated to the gas in the exhaust duct 10 in the ambient atmosphere, prevents that it from staying within, and influences the temperature of room air; Consult Fig. 5; Air port 100 connects the exhaust outlet that respectively saves baking oven, and air blower 200 is connected to the exhaust duct of atmosphere, and the gas that exhaust blower 09 is extracted out in exhaust duct 10 enters in the atmosphere.
Venting 11 is arranged on the top of frames 12, is sealed by rupture pressure disc, and when drying chamber 05 internal pressure surpassed the limiting value that rupture pressure disc can bear, rupture pressure disc broke, and prevents that baking oven from damaging.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For person of ordinary skill in the field of the present invention, do not breaking away under the prerequisite of the present invention design, can also make some being equal to substitute or obvious modification, and performance or purposes are identical, all should be regarded as belonging to protection scope of the present invention.