For the discharging mechanism of the plastic equipment of lithium cell
Technical field
The utility model relates to the parts of the plastic equipment of a kind of lithium cell, particularly relates to a kind of discharging mechanism for the plastic equipment of lithium cell.
Background technology
Lithium cell has two kinds of external forms usually: column type and square.Inside battery adopts helically wound structures, with a kind of very meticulous and penetrablility is very strong polyethylene foil isolated material forms in positive and negative pole spacing.Positive pole comprises the current collector be made up of cobalt acid lithium (or nickle cobalt lithium manganate, LiMn2O4, LiFePO 4 etc.) and aluminium foil.The current collector that negative pole is made up of graphitized carbon material and Copper Foil forms.Organic electrolyte solution is filled with in battery.Safety valve and PTC element (use of partial cylinder formula) are also housed in addition, so that battery protects battery not to be damaged when abnormal state and output short-circuit.
For avoiding lithium cell to sustain damage in transport, use procedure, causing battery performance to decline and even scrapping, being protected by coating by outer lithium cell, and form coated folded edge at battery core two ends, forming the protective film of bag shaped structure.Some Enterprises adopts artificial coating mode, and the conformability of artificial coating is bad, and efficiency is not high, and finger, sweat stain, dust, break flour etc. on gloves can pollute battery core, affect battery quality.
In prior art, Authorization Notice No. is that the utility model patent of CN 202170022 U provides a kind of battery core encapsulation tool, and its film coating mechanism comprises: coating platform, press cutter device, film drawing device, film pressing device and cut diaphragm apparatus; Cut the discharging opening side that diaphragm apparatus is arranged on membrane unwinding mechanism; Film drawing device comprises membrane fixture block and driver element thereof, and the first working position of membrane fixture block is positioned at the discharge outlet of membrane unwinding mechanism, and the distance of the second working position and the first working position is more than or equal to the length of barrier film needed for single battery core coating; Film pressing device comprises and is in two pressing film rollers on membrane unwinding direction and driver element thereof, these two pressing film rollers lay respectively at the both sides of coating platform, and wherein any one pressing film roller includes pressing film roller upper surface and is pressed in the 3rd working position on battery core upper surface that second working position at the battery core edge on coating platform and pressing film roller be pressed on coating platform lower than the first working position of coating platform table top, pressing film roller lower surface; This battery core encapsulation tool realizes the automated production of battery core coating, and efficiency is high, avoids the pollution that artificial coating exists.
In prior art, the lithium cell completing coating is discharged by tapping channel, tumble the load-transfer device to drying tunnel, enter in drying tunnel and heat, film shrunk is tightly wrapped in lithium cell surface, because lithium cell freely tumbles from tapping channel, part lithium cell is mutually adjacent, and during film heat shrink, the film on two lithium cell surfaces bonds together, cause film to shrink unsuccessfully, affect the envelope mass of lithium cell.
Utility model content
For overcoming problems of the prior art, the utility model provides the discharging mechanism for the plastic equipment of lithium cell that a kind of structure is simple, be convenient to installation, above tapping channel, spring bearer plate is set, for limiting freely tumbling of lithium cell, lithium cell is made to tumble on load-transfer device successively, avoid adjacent two lithium celies to be mutually close to, the coating of improving product shrinks quality.
The concrete technical scheme that the utility model adopts is as follows:
A kind of discharging mechanism for the plastic equipment of lithium cell, comprise the tapping channel be in tilted layout, the top of described tapping channel is provided with spring bearer plate, and this spring bearer plate has the backgauge portion at the feed opening place extending to tapping channel, and the top of spring bearer plate is placed with clump weight.
The utility model by arranging spring bearer plate above tapping channel, the backgauge portion of this spring bearer plate is pressed on the lithium cell at feed opening place, for stopping the free landing of lithium cell, avoiding adjacent two lithium celies to be mutually close to the load-transfer device tumbling drying tunnel, affecting the contraction quality of film; Stop owing to there is spring bearer plate, cylinder constantly advances lithium cell from the charging of tapping channel, and the lithium cell at extruding feed opening place overcomes the pressure of spring bearer plate, and landing, on the load-transfer device of drying tunnel, keeps the lithium cell on load-transfer device to be evenly distributed.
As the improvement of technical scheme, the top of described spring bearer plate is provided with the baffle plate placing clump weight.
For avoiding the clump weight on spring bearer plate to be shifted, utilize baffle plate to carry out spacing to clump weight, the position being convenient to clump weight is fixed.
As the improvement of technical scheme, the top of described spring bearer plate is provided with the material retaining hood placing clump weight.
For better clump weight being placed on spring bearer plate, material retaining hood can also being set above spring bearer plate, carrying out spacing from multiaspect to clump weight, avoiding the vibration of spring bearer plate, cause the displacement of clump weight or drop.
As the improvement of technical scheme, described material retaining hood is slidably fitted on spring bearer plate, and keeps fixing by dowel bolt and spring bearer plate.
Material retaining hood is along spring bearer plate bearing fit, and the position of clump weight is adjustable, can according to the lithium cell of Different Weight, and the position of adjustment clump weight, makes the pressure of spring bearer plate and the gravity of lithium cell adapt, and stops that lithium cell glides.
As the improvement of technical scheme, one end of described spring bearer plate is connected on the adapter plate above tapping channel, and the feed opening place that the other end extends to tapping channel forms described backgauge portion.
One end of spring bearer plate is connected on the adapter plate above tapping channel, and the other end extends to the feed opening place of tapping channel and is pressed on lithium cell, forms the backgauge portion of restriction lithium cell landing, and lithium cell, by the distortion of extruding backgauge portion, discharges tapping channel.
As the improvement of technical scheme, the other end of described spring bearer plate is be bent downwardly the arc to feed opening place.
Backgauge portion is reclinate arc, has better barrier effect, controls each by means of only a lithium cell.
As the improvement of technical scheme, described backgauge portion is fork-shaped.
Backgauge portion of the present utility model is fork-shaped, and middle part is the breach of hollow, by acting on the two ends of lithium cell, keeps the balance of lithium cell, prevents lithium cell from tilting to skid off.
The utility model structure is simple, be convenient to install, spring bearer plate being set above tapping channel, for limiting freely tumbling of lithium cell, making lithium cell tumble on load-transfer device successively, avoid adjacent two lithium celies to be mutually close to, the coating of improving product shrinks quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of discharging mechanism.
Detailed description of the invention
As shown in Figure 1, for a discharging mechanism for the plastic equipment of lithium cell, comprise the tapping channel 1 be in tilted layout, the top of tapping channel 1 is provided with spring bearer plate 2, this spring bearer plate 2 has the backgauge portion 5 at the feed opening place extending to tapping channel 1, and the top of spring bearer plate 2 is placed with clump weight 3.
The top of spring bearer plate 2 is provided with the baffle plate 4 placing clump weight 3, and for avoiding the clump weight on spring bearer plate to be shifted, utilize baffle plate 4 pairs of clump weights 3 to carry out spacing, the position being convenient to clump weight is fixed.
In another embodiment, for better clump weight 3 being fixed on spring bearer plate 2, material retaining hood can also being set above spring bearer plate 2, carrying out spacing from multiaspect to clump weight 3, avoid the vibration of spring bearer plate, cause the displacement of clump weight or drop.
One end of spring bearer plate 2 is connected on the adapter plate 6 above tapping channel 1, and the feed opening place that the other end extends to tapping channel 1 forms backgauge portion 5, and this backgauge portion 5 is for being bent downwardly the arc to feed opening place.Backgauge portion 5 is pressed on lithium cell, and the landing of restriction lithium cell 8, lithium cell 8 is out of shape by extruding backgauge portion 5, slides out on the load-transfer device 7 of drying tunnel.
Backgauge portion 5 in the present embodiment is in fork-shaped, and middle part is the breach of hollow, by acting on lithium cell 8 two ends, keeping lithium cell 8 to balance, preventing lithium cell from tilting to skid off, affecting the contraction quality of film.
The foregoing is only better implementation example of the present utility model, be not limited to the utility model, all within the utility model spirit and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.