Disclosure of Invention
The invention aims to solve the technical problem of providing a lithium ion power battery cell pole piece bagging device which is capable of making bags without dislocation and reliably positioning.
The above object is achieved by the following technical scheme:
A pole piece bag making device of square lithium ion power battery cell comprises a feeding device, an unreeling device, a pole piece moving device, a pole piece positioning device, a cutting device and a receiving device,
The feeding device is provided with a feeding box;
The unreeling device is provided with
The diaphragm deviation correcting mechanism automatically corrects the unreeling of the pole piece;
the diaphragm tension mechanism is used for automatically unreeling the pole piece;
And a diaphragm transition rod, accurately assisting in tension control;
The receiving device is provided with a receiving box, a receiving manipulator and a pulling manipulator, and is used for collecting pole pieces after bag making.
As a further description of the pole piece bag making equipment of the square lithium ion power battery cell, the diaphragm deviation rectifying mechanism comprises a stepping motor, a motion screw and an optical fiber sensor for control, and the diaphragm tension mechanism is positioned below the diaphragm deviation rectifying mechanism and comprises a gravity roller and a speed regulating motor, wherein the gravity roller is positioned below the diaphragm transition roller.
As a further description of the pole piece bag making equipment of the square lithium ion power battery cell, the pole piece moving device comprises a material taking plate, a vacuum generator, a moving flat plate, a shaking mechanism and a material sucking mechanism, wherein one side of the material taking plate is provided with the vacuum generator, the material sucking mechanism is connected with the vacuum generator and is positioned below the shaking mechanism, and the vacuum generator, the moving flat plate, the shaking mechanism and the material sucking mechanism are all fixed on the material taking plate.
As a further description of the pole piece bag making equipment of the square lithium ion power battery cell, the pole piece positioning device comprises a movable positioning plate, a fixed positioning plate and a positioning template, wherein the movable positioning plate and the fixed positioning plate are respectively positioned at the periphery of the positioning template, the pole piece is placed on the positioning template, the ultrasonic sensor faces the positioning template, and the overlapping quantity of the pole pieces is detected.
As a further description of the pole piece bag making equipment of the square lithium ion power battery cell, the cutting device comprises a cold cutter cutting mechanism, a heat insulation sealing cutter, a rubber pressing roller and a feeding mechanical arm, wherein the rubber pressing roller is positioned above the pole piece moving device, the heat insulation sealing cutter is positioned on two sides of the rubber pressing roller, and the cold cutter cutting mechanism is positioned on one side of the pulling mechanical arm.
The beneficial effects of the invention are as follows: the unwinding device can keep the tension of the diaphragm constant, the diaphragm unwinding device is controlled by a servo motor, the diaphragm tension is accurately controlled by the active uniform speed unwinding and the gravity roller, the diaphragm extension deformation is small, and the diaphragm belt automatically rectifies. By accurately positioning the pole piece, dislocation is avoided along with the travelling of the diaphragm, and the pole piece bag making precision is ensured to be less than or equal to 0.5mm. The pole piece positioning part is provided with an ultrasonic sensor and can detect repeated stacking of a plurality of pieces; the pole piece moving device is provided with a shaking mechanism, and the cutting device is matched with a rubber pressing roller, a heat insulation knife and the like, so that the stability during folding can be ensured. Because of combining the heat insulating knife, the edge cutting after the diaphragm cutting has no warpage and wave, and the four corners also ensure no corner warping phenomenon.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
Referring to fig. 1-6, a pole piece bag making device of a square lithium ion power battery cell comprises a feeding device 1, an unreeling device 2, a pole piece moving device 3, a pole piece positioning device 4, a cutting-type device 5 and a receiving device 6,
The feeding device 1 is provided with a feeding box;
the unreeling device 2 is provided with
The diaphragm deviation correcting mechanism 7 is used for automatically correcting the unreeling of the pole piece;
the diaphragm tension mechanism is used for automatically unreeling the pole piece;
And a diaphragm transition rod, accurately assisting in tension control;
The material receiving device 6 is provided with a material receiving box 61, a material receiving manipulator 62 and a material pulling manipulator 63, and is used for collecting pole pieces after bag making.
As a further description of the above-mentioned pole piece bag making device of square lithium ion power battery cell, the diaphragm deviation rectifying mechanism 7 includes a stepping motor 21, a moving screw 22 and an optical fiber sensor, the diaphragm tension mechanism is located below the diaphragm deviation rectifying mechanism and includes a gravity roller 23 and a speed regulating motor 24, and the gravity roller 23 is located below a diaphragm transition roller 25. The unreeling device carries out uniform unreeling control through 2 groups of gravity rollers and a speed regulating motor, so that the tension of the diaphragm is constant, and the front and rear positions of the diaphragm are automatically corrected.
As a further description of the above-mentioned pole piece bag making device of square lithium ion power battery cell, the pole piece moving device 3 includes a material taking plate 31, a vacuum generator 32, a moving plate 33, a shaking mechanism 34 and a material sucking mechanism 35, one side of the material taking plate 31 is provided with the vacuum generator 32, the material sucking mechanism 35 is connected with the vacuum generator 32 and is located below the shaking mechanism 34, and the vacuum generator, the moving plate 33, the shaking mechanism 34 and the material sucking mechanism 35 are all fixed on the material taking plate 31. The vacuum generator of the pole piece moving device can independently reciprocate up and down, and the material sucking mechanism from the material box to the pole piece positioning device has an automatic shaking function through the shaking mechanism.
As a further description of the pole piece bag making device of the square lithium ion power battery cell, the pole piece positioning device 4 comprises a movable positioning plate 41, a fixed positioning plate 42 and a positioning template 43, wherein the movable positioning plate 41 and the fixed positioning plate 42 are respectively positioned around the positioning template 43, the pole pieces are placed on the positioning template, the ultrasonic sensor faces the positioning template, and when in positioning, a plurality of pieces of pole pieces can be detected by applying ultrasonic waves, so that only one piece of pole pieces is sucked each time, and the overlapping quantity of the pole pieces is detected.
As a further description of the above-mentioned pole piece bag making device of square lithium ion power battery cell, the cutting device 5 comprises a cold cutter cutting mechanism 51, a heat insulation cutter 52 and a glue pressing roller 53, wherein the glue pressing roller 53 is positioned above the pole piece moving device 3, the heat insulation cutter 52 is positioned at two sides of the glue pressing roller, and the cold cutter cutting mechanism is positioned at one side of the material pulling manipulator. The heat sealing device part sucks the pole piece onto the lower diaphragm through the sucker, after the pole piece is placed at the designated position, the upper heat insulation sealing knife descends to complete bag making, and the pole piece is made into bags through the plurality of sealing knives mutually matched with the rubber pressing rollers, so that the bag making position can be ensured to be accurate. The diaphragm is cut by adopting a cold cutter mode, and the problems of wiredrawing, shrinkage deformation and the like are avoided after the diaphragm is cut.
The work of the invention is specifically divided into the following procedures:
The upper diaphragm and the lower diaphragm are actively unreeled, and pole pieces are introduced into a bag making station through a tension mechanism, a diaphragm transition roller 25, a gravity roller, a shaking mechanism and other mechanisms;
Meanwhile, the sucker of the suction mechanism of the pole piece moving device takes out the pole piece to be bagged from the material box and puts the pole piece into a positioning template of the pole piece positioning device;
After the secondary positioning, the sucking disc of the feeding mechanism places the positioned pole piece above the lower-layer diaphragm of the bag making station;
After the sucking disc of the sucking mechanism is placed with the pole piece, in the process that the manipulator returns to the original position, the upper layer diaphragm is pulled by the rubber pressing roller to wrap the pole piece, and when the sucking disc returns to the original position, the pole piece is sealed in the two layers of diaphragms by the heat insulating knife.
The clip 84 then clamps the bagged pole piece and pulls the bagged pole piece to the cold knife cutting mechanism position via the pulling manipulator. When the material pulling manipulator moves, the upper diaphragm and the lower diaphragm can automatically retract and unwind the pole piece raw materials.
When the pulling manipulator 61 pulls the pole piece after bag making to the cold cutter cutting mechanism, the cold cutter cutting mechanism cuts off the pole piece after bag making, the cut pole piece is guided by the flat belt 82 and then taken out by the sucker of the material collecting device, and then the material collecting manipulator 83 is conveyed into the material collecting box.
In the process, the motion of the material sucking mechanism, the material pulling manipulator and the material receiving manipulator is synchronously and actively carried out, so that the stable and smooth processing can be kept in the running process of the equipment.
The above description should not be taken as limiting the scope of the invention, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present invention still fall within the scope of the technical solutions of the present invention.