CN212434660U - Heating roller and lithium battery pole piece uncoiling heating system - Google Patents
Heating roller and lithium battery pole piece uncoiling heating system Download PDFInfo
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- CN212434660U CN212434660U CN202021938638.7U CN202021938638U CN212434660U CN 212434660 U CN212434660 U CN 212434660U CN 202021938638 U CN202021938638 U CN 202021938638U CN 212434660 U CN212434660 U CN 212434660U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a warming mill and lithium battery pole piece open a book heating system, this warming mill, install including a metal outer roller that has the inner chamber and one interior roller in the inner chamber, the outer peripheral surface cover of interior roller is equipped with heat conduction metal covering, just heat conduction metal covering's outer peripheral surface with the interior circumference surface contact of metal outer roller, be provided with a plurality of axial mounting holes on the heat conduction metal covering, each all install the heating tube in the mounting hole. The utility model discloses a warming mill is through evenly installing the heating tube in the heat conduction metal covering, and the heating tube is heated the back and is passed through heat conduction metal covering heat conduction, makes the temperature equilibrium on the circumference of heat conduction metal covering to the temperature that makes the metal outer roller is balanced, realizes the even heating of heating tube to the pole piece, and not only the structure is simpler, and is with low costs, and easy control.
Description
Technical Field
The utility model relates to a lithium cell production and processing equipment technical field, specific theory relates to a heating roller and lithium battery pole piece open a book heating system.
Background
Compared with the traditional storage battery, the lithium ion battery has the excellent performance advantages of high working voltage, long cycle life and the like; these excellent properties are largely derived from the fact that the working system of the lithium ion battery belongs to a non-aqueous electrochemical system, and therefore, in order to manufacture the lithium ion battery with excellent properties, the drying of the battery, particularly the pole piece, is required. In the conventional production of the lithium ion battery, the pole piece and the winding core of the lithium ion battery are required to be baked in an oven for several hours to tens of hours, and the water content of the battery before final liquid injection is often higher than 100ppm, so that the time and labor are wasted, and the effect is poor.
In order to improve the heating process of the lithium battery pole piece, in the prior art, manufacturers adopt a mode of heating by using an oil roller and circulating hot air to dry or thermally treat the lithium battery pole piece, but the mode has the disadvantages of slow heating speed, long heating time, low heating efficiency, high cost and large equipment volume, and cannot meet the requirements of high efficiency, energy conservation and low cost of the conventional drying or thermal treatment of the lithium battery pole piece.
The above drawbacks are to be improved.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a heating roller.
The utility model discloses technical scheme as follows:
a heating roller comprises a metal outer roller with an inner cavity and an inner roller arranged in the inner cavity, wherein a heat-conducting metal sleeve is sleeved on the outer circumferential surface of the inner roller, the outer circumferential surface of the heat-conducting metal sleeve is in contact with the inner circumferential surface of the metal outer roller, a plurality of axial mounting holes are formed in the heat-conducting metal sleeve, and a heating tube is arranged in each mounting hole.
According to above scheme the utility model discloses, one of them end of metal outer roller is epaxial to be provided with the through-hole, be provided with electric rotary joint on the through-hole, the wire of heating tube passes the through-hole with electric rotary joint connects, and passes through electric rotary joint external power supply control module.
According to above-mentioned scheme the utility model discloses, it is multiple the mounting hole evenly sets up heat conduction metal sheathe in.
According to above-mentioned scheme the utility model discloses, the material of metal outer roller is steel.
According to the above scheme the utility model discloses, the material of heat conduction metal covering is the aluminium material.
On the other hand, the uncoiling and heating system for the lithium battery pole piece comprises an uncoiling mechanism, a heating mechanism and a coiling mechanism, wherein the uncoiling mechanism, the heating mechanism and the coiling mechanism are sequentially arranged, the heating mechanism comprises a plurality of heating rollers, and the pole piece is heated on the surfaces of the heating rollers through the plurality of heating rollers.
Further, the uncoiling mechanism comprises an uncoiling shaft and an uncoiling motor, and the uncoiling motor is rotationally connected with the uncoiling shaft and drives the uncoiling shaft to rotate;
the winding mechanism comprises a winding shaft and a winding motor, and the winding motor is connected with the winding shaft and drives the winding shaft to rotate.
Further, the unwinding shaft and the winding shaft both comprise a hollow shaft body with an open end, a limit hole is formed in the side face relative position of the hollow shaft body, an expansion block is installed in the limit hole and is opposite to the expansion block, the inner side of the expansion block is a wedge-shaped surface, the expansion block is elastically connected with the hollow shaft body, an ejector rod is arranged in the hollow shaft body and corresponds to the expansion block, a wedge-shaped push block is arranged at the position of the expansion block, and one end of the ejector rod, facing inwards, is elastically connected with the inner side of the closed end face of the hollow shaft body.
Furthermore, a first belt connecting mechanism is arranged between the uncoiling mechanism and the heating mechanism, and a second belt connecting mechanism is arranged between the heating mechanism and the coiling mechanism.
Furthermore, the first tape splicing mechanism and the second tape splicing mechanism respectively comprise a pressing block and a pressing cylinder, the pressing block is used for pressing the pole pieces, and the pressing cylinder is in driving connection with the pressing block and is used for pressing the pole pieces.
Furthermore, be provided with on the decoiler shaft and be used for with the first mechanism of rectifying of the position of pole piece, be provided with the first sensor of rectifying between decoiler mechanism and the first tape splicing mechanism, the first sensor of rectifying with first mechanism electric connection of rectifying.
Furthermore, a second deviation rectifying mechanism used for rectifying the position of the pole piece is arranged on the winding shaft, a second deviation rectifying sensor is arranged between the winding mechanism and the second belt connecting mechanism, and the second deviation rectifying sensor is electrically connected with the second deviation rectifying mechanism.
The beneficial effects of the utility model reside in that:
the heating roller of the utility model has the advantages that the heating pipes are uniformly arranged in the heat-conducting metal sleeve, and heat is conducted through the heat-conducting metal sleeve after the heating pipes generate heat, so that the temperature on the circumference of the heat-conducting metal sleeve is balanced, the temperature of the metal outer roller is balanced, and the heating pipes can uniformly heat the pole piece; compared with the prior mode of adding circulating hot air to the oil roller to dry or thermally treat the bare cell pole piece or the pole piece substrate, the utility model has the advantages that the oil leakage problem and the tedious operations such as oil change are not needed, the structure is simpler, the cost is low, and the control is easy; meanwhile, the heating tube is adopted for heating, the heating speed is high, the temperature can be quickly raised to the designated temperature, the heating time is short, the drying or heat treatment time is greatly saved, the working efficiency is improved, the automatic work is easy to realize, and the manpower and material resources are greatly saved; the utility model discloses a warming mill passes through electric rotary joint and realizes power supply and control to the heating tube.
Drawings
FIG. 1 is a cross-sectional view of a heating roller according to an embodiment of the present invention;
FIG. 2 is a sectional view of a heating roller according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the present invention.
In the context of the figures, it is,
1. an uncoiling mechanism;
2. a heating mechanism; 21. a heating roller; 211. a metal outer roller; 212. an inner roll; 213. a heat conductive metal sleeve; 2111. an end shaft; 2112. a through hole; 2113. an electrical rotary joint; 2131. mounting holes;
3. a winding mechanism.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail.
It will be understood that when an element is referred to as being "disposed on" or "disposed over" or "mounted on" another element, it can be directly or indirectly disposed on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "inner", "outer", "axial", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are only for convenience of description and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. "plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
Referring to fig. 1 and 2, an embodiment of the present invention provides a heating roller 21, which includes an outer metal roller 211 having an inner cavity and an inner metal roller 212 installed in the inner cavity, wherein a heat conductive metal sleeve 213 is sleeved on an outer circumferential surface of the inner metal roller 212, an outer circumferential surface of the heat conductive metal sleeve 213 contacts with an inner circumferential surface of the outer metal roller 211, a plurality of axial mounting holes 2131 are formed in the heat conductive metal sleeve 213, the plurality of mounting holes 2131 are uniformly formed in the heat conductive metal sleeve 213, and a heating tube is installed in each mounting hole 2131 (not shown, the same applies below). The heating roller 21 of the utility model has the advantages that the heating pipes are uniformly arranged in the heat-conducting metal sleeve 213, heat is conducted through the heat-conducting metal sleeve 213 after the heating pipes generate heat, so that the temperature on the circumference of the heat-conducting metal sleeve 213 is balanced, the temperature of the metal outer roller 211 is balanced, and the heating pipes can uniformly heat the pole pieces; compared with the existing hot oil roller, the heating roller 21 of the utility model has the advantages that the oil leakage problem and the tedious operations such as oil change are not needed to be worried when the bare cell pole piece or the pole piece substrate is dried or thermally treated, the structure is simpler, the cost is low, and the control is easy; meanwhile, the heating tube is adopted for heating, the heating speed is high, the heating can be rapidly heated to the specified temperature, the heating time is short, the drying or heat treatment time is greatly saved, the working efficiency is improved, the automatic work is easy to realize, and the manpower and material resources are greatly saved.
Referring to fig. 2, in an embodiment, a through hole 2112 is disposed on one end shaft 2111 of the metal outer roller 211, an electrical rotary joint 2113 is disposed on the through hole 2112, and a lead of the heating tube passes through the through hole 2112 to be connected with the electrical rotary joint 2113, and is externally connected with a power supply control module (not shown, the same applies below) through the electrical rotary joint 2113, so as to implement power supply and control of the heating tube.
In an embodiment, the length of the heating tube is greater than the length of the mounting hole 2131, and fixing plates (not shown, the same applies below) are respectively disposed at two ends of the heating tube, and the heating tube and the wires thereof are fixed by the fixing plates, so as to prevent the wires of the plurality of heating tubes from being wound.
In an embodiment, a temperature sensor (not shown, the same below) or a thermocouple (not shown, the same below) is further disposed on the heat conducting metal sleeve 213, and the heating temperature of the heating pipe is monitored in real time by the temperature sensor or the thermocouple, so as to adjust the temperature of the surface of the heating roller 21. Specifically, a lead of the temperature sensor or the thermocouple passes through the through hole 2112 to be connected with the electric rotating joint 2113, and is externally connected with the power supply control module through the electric rotating joint 2113, so that power supply and control of the temperature sensor or the thermocouple are realized.
In an embodiment, the metal outer roller 211 is made of a steel material, and the steel metal outer roller 211 enables the roller body to have a strong mechanical strength and a good thermal conductivity.
In an embodiment, the heat conducting metal sleeve 213 is made of aluminum or other metal material with high thermal conductivity, and the heat conducting metal sleeve 213 is made of aluminum or other metal material with high thermal conductivity, so that heat generated by the heating tube can be rapidly transferred to the heat conducting metal sleeve 213, and then the heat is transferred to the metal outer roller 211 through the heat conducting metal sleeve 213.
Referring to fig. 3, a lithium battery pole piece uncoiling and heating system includes an uncoiling mechanism 1, a heating mechanism 2 and a coiling mechanism 3, wherein the uncoiling mechanism 1, the heating mechanism 2 and the coiling mechanism 3 are sequentially arranged, and the uncoiling speed of the uncoiling mechanism 1 is the same as the coiling speed of the coiling mechanism 3. The heating mechanism 2 includes a plurality of heating rollers 21 of any of the above-described types, and a pole piece (not shown, the same applies hereinafter) is heated by the surfaces of the plurality of heating rollers 21. During the use, the pole piece that will wait to heat on the pole piece feed cylinder is drawn to the rolling feed cylinder through heating mechanism 2 and winding mechanism 3 in proper order from unwinding mechanism 1 to the manual work, then starts the system, and the speed of opening a book of adjustment unwinding mechanism 1 reaches unanimity with winding mechanism 3's winding speed, and this system can realize repeated efficient drying or thermal treatment operation.
Compared with the prior mode of adding circulating hot air to the oil roller to dry or thermally treat the bare cell pole piece or the pole piece substrate, the utility model has the advantages that the oil leakage problem and the tedious operations such as oil change are not needed to be worried about, and the heating roller 21 of the utility model is not only simpler in structure, low in cost and easy to control; and simultaneously, the utility model discloses a warming mill 21 adopts the heating tube heating, and the programming rate is fast, can heat up rapidly to the assigned temperature, and heat time is short, has saved dry or heat treatment time greatly, has improved work efficiency, easily realizes automatic work, has saved manpower and materials greatly.
In one embodiment, the heating rollers 21 are arranged at intervals, the pole pieces are sequentially crossed and spaced to heat the surfaces of the heating rollers 21, and the heating area of each heating roller 21 is larger than 2/3 of the side area of the heating roller because the pole pieces are crossed and spaced to heat the surfaces of the heating rollers 21, so that the heat is fully utilized, and the sufficient heat exchange rate is ensured.
In an embodiment, the unwinding mechanism 1 includes an unwinding shaft (not shown, the same below), on which the pole piece cartridge is sleeved, and an unwinding motor (not shown, the same below), which is rotatably connected with the unwinding shaft and drives the unwinding shaft to rotate. In addition, in order to push out the empty material barrel conveniently, a material barrel pushing mechanism for pushing out the empty material barrel is arranged on the unwinding shaft.
The winding mechanism 3 comprises a winding shaft (not shown, the lower part is the same as the winding shaft) and a winding motor (not shown, the lower part is the same as the winding shaft), the winding material barrel is sleeved on the winding shaft, the heated pole piece is wound on the winding material barrel, and the winding motor is connected with the winding shaft and drives the winding shaft to rotate.
In one embodiment, the unwinding shaft and the winding shaft respectively comprise a hollow shaft body with an opening at one end, a limiting hole is formed in the side face of the hollow shaft body at a position opposite to the side face, an expansion block is arranged in the limiting hole, the inner side of the opposite expansion block is a wedge-shaped surface, the expansion block is elastically connected with the hollow shaft body, a push rod is arranged in the hollow shaft body, a wedge-shaped push block is arranged at the position of the push rod corresponding to the expansion block, and the inward end of the push rod is elastically connected with the inner side of the closed end.
In an embodiment, the winding mechanism 3 may further include a winding roller (not shown, the same applies below), the winding roller includes a rubber roller and a swing shaft, the swing shaft is located above the winding shaft, and the rubber roller and the swing shaft are connected through a swing rod and interact with the winding shaft to compact the pole pieces.
In an embodiment, a first tape splicing mechanism (not shown, the same applies below) is disposed between the unwinding mechanism 1 and the heating mechanism 2, and a second tape splicing mechanism (not shown, the same applies below) is disposed between the heating mechanism 2 and the winding mechanism 3. The first belt splicing mechanism and the second belt splicing mechanism respectively comprise a pressing block and a pressing cylinder, the pressing block is used for pressing the pole pieces, and the pressing cylinder is in driving connection with the pressing block and is used for pressing the pole pieces.
In an embodiment, a first deviation rectifying mechanism (not shown, the same below) for rectifying the position of the pole piece is disposed on the unwinding shaft, a first deviation rectifying sensor (not shown, the same below) is disposed between the unwinding shaft 1 and the first tape splicing mechanism, and the first deviation rectifying sensor is electrically connected to the first deviation rectifying mechanism. A second deviation rectifying mechanism (not shown in the figure, the same below) for rectifying the position of the pole piece is arranged on the winding shaft, a second deviation rectifying sensor (not shown in the figure, the same below) is arranged between the winding mechanism 3 and the second tape splicing mechanism, and the second deviation rectifying sensor is electrically connected with the second deviation rectifying mechanism. Because of the pole piece feed cylinder is opening a book or rolling in-process because mechanical structure's vibration or other factors lead to the pole piece position to produce the deviation, the heating of assurance pole piece that can not be fine, consequently sets up this problem of solution that the sensor of rectifying and the mechanism of rectifying can be fine, when the sensor of rectifying senses the pole piece position and produces the deviation, the mechanism of rectifying just can adjust the position of opening a book axle and rectify a deviation.
In an embodiment, the uncoiling and heating system for the lithium battery pole piece further comprises a vacuum bin (not shown, the same below) and a vacuum device (not shown, the same below), the vacuum device is communicated with the vacuum bin through a vacuum pipeline (not shown, the same below), and the uncoiling mechanism 1, the heating mechanism 2 and the coiling mechanism 3 are all arranged in the vacuum bin. Before the drying or heat treatment operation is started, the vacuum device is used for evacuating air in the vacuum bin, so that the pole piece can be heated in a vacuum environment, the heating effect is better, and the pole piece is more stable. Wherein, evacuating device adopt commonly used vacuum pump can, preferably be water ring pump or lobe pump, the utility model discloses the vacuum pipe who mentions adopts airtight tubular metal resonator or plastic tubing preparation all can, and the chooseing for use of evacuating device and vacuum pipe should not regard as the utility model discloses a restriction, because the universality of its suitable, do not add the perusal here.
The beneficial effects of the utility model reside in that:
1. the heating roller 21 of the utility model has the advantages that the heating pipes are uniformly arranged in the heat-conducting metal sleeve 213, heat is conducted through the heat-conducting metal sleeve 213 after the heating pipes generate heat, so that the temperature on the circumference of the heat-conducting metal sleeve 213 is balanced, the temperature of the metal outer roller 211 is balanced, and the heating pipes can uniformly heat the pole pieces;
2. compared with the prior mode of adding circulating hot air to the oil roller to dry or thermally treat the bare cell pole piece or the pole piece substrate, the utility model has the advantages that the oil leakage problem and the tedious operations such as oil change are not needed, the structure is simpler, the cost is low, and the control is easy;
3. the heating roller 21 of the utility model adopts the heating pipe for heating, has fast heating speed, can rapidly heat up to a specified temperature, has short heating time, greatly saves the drying or heat treatment time, improves the working efficiency, is easy to realize automatic work, and greatly saves manpower and material resources;
4. the heating roller 21 of the utility model realizes the power supply and control of the heating tube through the electric rotating joint 2113;
5. the utility model discloses be provided with the mechanism of rectifying and the sensor of rectifying on unwinding shaft and winding shaft, because of the pole piece feed cylinder is opening a book or the rolling in-process because mechanical structure's vibration or other factors lead to the pole piece position to produce the deviation, the heating of assurance pole piece that can not be fine, and set up the sensor of rectifying and rectify this problem of solution that the mechanism can be fine, when the sensor of rectifying senses the pole piece position and produces the deviation, the mechanism of rectifying just can adjust the position of opening a book axle and rectify a deviation.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
The above exemplary description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above manner, and various improvements made by the method concept and technical solution of the present invention or by directly applying the concept and technical solution of the present invention to other occasions without improvement are all within the protection scope of the present invention.
Claims (10)
1. A heating roller comprises a metal outer roller with an inner cavity and an inner roller arranged in the inner cavity, and is characterized in that a heat-conducting metal sleeve is sleeved on the outer circumferential surface of the inner roller, the outer circumferential surface of the heat-conducting metal sleeve is in contact with the inner circumferential surface of the metal outer roller, a plurality of axial mounting holes are formed in the heat-conducting metal sleeve, and a heating tube is arranged in each mounting hole.
2. The heating roller as claimed in claim 1, wherein a through hole is formed in one of the end shafts of the metal outer roller, an electric rotary joint is disposed on the through hole, and a lead of the heating tube passes through the through hole to be connected with the electric rotary joint and is externally connected with a power supply control module through the electric rotary joint.
3. The heating roller as claimed in claim 1, wherein a plurality of said mounting holes are uniformly provided on said heat conductive metal cover.
4. The heating roller as claimed in claim 1, wherein the metal outer roller is made of a steel material.
5. The heating roller as claimed in claim 1, wherein the heat conductive metal jacket is made of aluminum.
6. A lithium battery pole piece uncoiling and heating system is characterized by comprising an uncoiling mechanism, a heating mechanism and a coiling mechanism, wherein the uncoiling mechanism, the heating mechanism and the coiling mechanism are sequentially arranged, the heating mechanism comprises a plurality of heating rollers according to any one of claims 1 to 5, and a pole piece is heated on the surfaces of the plurality of heating rollers.
7. The lithium battery pole piece uncoiling heating system according to claim 6, wherein the uncoiling mechanism comprises an uncoiling shaft and an uncoiling motor, and the uncoiling motor is rotationally connected with the uncoiling shaft and drives the uncoiling shaft to rotate;
the winding mechanism comprises a winding shaft and a winding motor, and the winding motor is connected with the winding shaft and drives the winding shaft to rotate.
8. The lithium battery pole piece uncoiling and heating system according to claim 7, wherein the uncoiling shaft and the coiling shaft each comprise a hollow shaft body with an opening at one end, a limiting hole is formed in a side surface of the hollow shaft body at a position opposite to the side surface, an expansion block is installed in the limiting hole, the opposite inner side of the expansion block is a wedge-shaped surface, the expansion block is elastically connected with the hollow shaft body, a push rod is arranged in the hollow shaft body, a wedge-shaped push block is arranged at a position of the push rod corresponding to the expansion block, and one inward end of the push rod is elastically connected with the inner side of a closed end surface of the hollow shaft body.
9. The lithium battery pole piece uncoiling and heating system according to claim 6, wherein a first tape splicing mechanism is arranged between the uncoiling mechanism and the heating mechanism, and a second tape splicing mechanism is arranged between the heating mechanism and the coiling mechanism.
10. The uncoiling and heating system for a lithium battery pole piece according to claim 9, wherein the first tape splicing mechanism and the second tape splicing mechanism each comprise a pressing block and a pressing cylinder for pressing the pole piece, and the pressing cylinder is in driving connection with the pressing block for pressing the pole piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021938638.7U CN212434660U (en) | 2020-09-04 | 2020-09-04 | Heating roller and lithium battery pole piece uncoiling heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021938638.7U CN212434660U (en) | 2020-09-04 | 2020-09-04 | Heating roller and lithium battery pole piece uncoiling heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212434660U true CN212434660U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021938638.7U Active CN212434660U (en) | 2020-09-04 | 2020-09-04 | Heating roller and lithium battery pole piece uncoiling heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212434660U (en) |
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2020
- 2020-09-04 CN CN202021938638.7U patent/CN212434660U/en active Active
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