CN115448073A - Winding mechanism and lithium battery pole piece production line - Google Patents
Winding mechanism and lithium battery pole piece production line Download PDFInfo
- Publication number
- CN115448073A CN115448073A CN202211397668.5A CN202211397668A CN115448073A CN 115448073 A CN115448073 A CN 115448073A CN 202211397668 A CN202211397668 A CN 202211397668A CN 115448073 A CN115448073 A CN 115448073A
- Authority
- CN
- China
- Prior art keywords
- roller
- winding
- winding shaft
- approaching
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
- B65H19/26—Cutting-off the web running to the wound web roll
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
- B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
-
- 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
Landscapes
- Replacement Of Web Rolls (AREA)
Abstract
The invention relates to the technical field of lithium battery pole piece winding devices, in particular to a winding mechanism, and further relates to a lithium battery pole piece production line comprising the winding mechanism, wherein the winding mechanism comprises a rack, a winding group, a moving arm, an approach roller group, a winding changing device, a driving component and a cutter device, and when the winding is changed, the position of a winding shaft is not required to be changed, but the driving component is used for driving the moving arm to pull a material to be wound to the winding shaft for winding change, so that the traction force required during winding change can be greatly reduced, the use cost is reduced, and the market competitiveness is improved; after the material pulls to the rolling axle, is rotated by the change of lap device drive roller seat again, changes the orientation of material in clearance department, can make the material can arrive the rolling axle smoothly, then promotes the material by the change of lap device and removes, makes the material glue on waiting the rolling axle of rolling, utilizes cutters to cut off the material simultaneously, makes the material of clearance department and the rolling hub connection of accomplishing the rolling, realizes online automatic roll changing.
Description
Technical Field
The invention relates to the technical field of lithium battery pole piece winding devices, in particular to a winding mechanism, and further relates to a lithium battery pole piece production line comprising the winding mechanism.
Background
In the production process of the lithium battery pole piece, a winding device is required to be adopted for winding, generally, the winding device of the lithium battery pole piece can be divided into a single-station winding device and a multi-station winding device, and the multi-station winding device is used for reducing the occupied area and improving the winding efficiency;
the existing multi-station winding device mainly comprises a turntable, a driving motor for driving the turntable to rotate and two or more than two winding shafts arranged on the turntable, wherein when the device works, one part of the winding shafts on the turntable are firstly wound, the other part of the winding shafts are standby, and when the current winding shafts are fully wound, the driving motor drives the turntable to rotate so as to enable the winding shafts which are not wound to reach the winding position for carrying out tape splicing and winding processes;
however, when the pole piece is fully wound by the winding shaft, the weight of the pole piece roll on a single winding shaft is 1-2 tons, so that the driving force required by the rotation of the turntable is large, the use cost is high, in addition, the inertia force generated by the rotation of the turntable is also large, the turntable is not easy to accurately stop at a preset position after the rotation, and the fault is easy to occur.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the multistation coiling mechanism among the prior art and need the carousel to drive the rolling axle and rotate when the change of lap, lead to the big problem of required drive power, now provide a winding mechanism, in addition, still provide a lithium-ion battery pole piece production line including above-mentioned winding mechanism.
The technical scheme adopted by the invention for solving the technical problems is as follows: a winding mechanism comprising:
a frame;
the winding group is arranged on the rack and comprises two winding shafts for winding materials, namely a first winding shaft and a second winding shaft;
the moving arm can be arranged on the rack in a reciprocating manner between the two winding shafts;
the approaching roller group is provided with a roller seat, a first approaching roller and a second approaching roller, the first approaching roller and the second approaching roller are rotatably connected to the roller seat, a gap is reserved between the first approaching roller and the second approaching roller, and the roller seat is arranged on the moving arm;
the roll changing device is used for driving the roll seat to rotate, so that the approaching roll group is switched between a first state and a second state to change the orientation of the material at the gap, the material is guided to the first winding shaft by the first approaching roll after passing through the second approaching roll and passing through the gap in the first state, and the material is guided to the second winding shaft by the second approaching roll after passing through the first approaching roll and passing through the gap in the second state;
the driving assembly is used for driving the moving arm to move to the other winding shaft when one winding shaft winds materials;
when the first winding shaft finishes winding, the reel changing device is used for driving the second approaching roller to move so that the part of the material, which is positioned between the second approaching roller and the first winding shaft, is bonded on the second winding shaft, and the cutter device is used for cutting off the part of the material, which is positioned between the second approaching roller and the first winding shaft;
when the second winding shaft finishes winding, the winding changing device is used for driving the first approaching roller to move so that the part, corresponding to the first approaching roller, of the material is bonded on the first winding shaft, and the cutter device is used for cutting off the part, located between the first approaching roller and the second winding shaft, of the material.
Further, the roll changing device comprises a rotation assembly;
the autorotation assembly comprises a reel changing motor, an intermediate gear and a driven gear, the reel changing motor is fixed on the moving arm, a main shaft of the reel changing motor is in transmission connection with the intermediate gear, the intermediate gear is meshed with the driven gear, and the driven gear is fixedly connected with the roller seat.
Further, the number of the roller bases is two, and the first approaching roller and the second approaching roller are connected between the two roller bases; the two moving arms are fixedly connected with each other, and the first approaching roller and the second approaching roller are positioned between the two moving arms;
each moving arm is provided with an intermediate gear and a driven gear, the two roller seats are respectively positioned on the two moving arms, the driven gear is fixedly connected with the roller seat on the side where the driven gear is positioned, and the intermediate gear is meshed with the driven gear on the side where the intermediate gear is positioned;
a synchronizing shaft is arranged between the two moving arms, two ends of the synchronizing shaft are both provided with a driving gear, and the driving gear is meshed with a driven gear on the moving arm on the side where the driving gear is located.
Further, the roll changing device also comprises a pressure lifting component;
the pressure lifting assembly is used for driving the roller seat to rotate around the axis of the intermediate gear.
Furthermore, the pressure lifting assembly comprises a pressure lifting cylinder and a swinging seat, the swinging seat is rotatably mounted on the moving arm, the rotating center line of the swinging seat on the moving arm is coaxial with the intermediate gear, one end of the pressure lifting cylinder is hinged with the moving arm, the other end of the pressure lifting cylinder is hinged with the swinging seat, the roller seat is rotatably mounted on the swinging seat, and the rotating center line of the roller seat on the swinging seat is coaxial with the driven gear.
Further, the number of the roller bases is two, and the first approaching roller and the second approaching roller are connected between the two roller bases; the two moving arms are fixedly connected with each other, and the first approaching roller and the second approaching roller are positioned between the two moving arms;
each moving arm is provided with one lifting and pressing assembly, the swinging seat of each lifting and pressing assembly is rotatably installed on the corresponding moving arm, one end of the lifting and pressing cylinder of each lifting and pressing assembly is hinged with the corresponding moving arm, and the two roller seats are respectively installed on the two lifting and pressing assemblies.
Further, the cutter device comprises a first cutter, a first cutter cylinder, a second cutter and a second cutter cylinder; the first cutter and the second cutter are movably arranged on the movable arm; the cylinder body of the first cutter cylinder and the cylinder body of the second cutter cylinder are both arranged on the moving arm;
the first cutter cylinder is used for driving the first cutter to move so as to cut off the part of the material between the second approach roller and the first winding shaft;
and the second cutter cylinder is used for driving a second cutter to move so as to cut off the part of the material between the second approach roller and the first winding shaft.
The pushing device is provided with a telescopic pushing assembly, a rotating assembly and a pushing arm, the pushing arm is mounted on the output end of the rotating assembly, and the rotating assembly is mounted on the output end of the telescopic pushing assembly;
the telescopic pushing assembly is used for driving the rotating assembly and the pushing arm on the rotating assembly to reciprocate along the axis direction of the winding shaft, and the rotating assembly is used for driving the pushing arm to rotate so that the pushing arm can reach different winding shafts.
Furthermore, one end of the winding shaft is mounted on the rack, the other end of the winding shaft is suspended, and a cantilever supporting device is correspondingly arranged at the suspended end of each winding shaft;
the cantilever supporting device comprises a supporting arm, a connecting rod, a sliding block and a supporting cylinder; one end of the supporting cylinder is mounted on the rack, the other end of the supporting cylinder is connected with the sliding block, the sliding block is slidably mounted on the rack along the axis direction of the supporting cylinder, one end of the supporting arm is hinged with the rack, the other end of the supporting arm is used for supporting the suspended end of the corresponding winding shaft, one end of the connecting rod is hinged with the sliding block to form a first hinge point, and the other end of the connecting rod is hinged with the middle part of the supporting arm to form a second hinge point; when the supporting arm supports and holds the suspended end of the corresponding winding shaft, the connecting line between the first hinge point and the second hinge point is vertical to the sliding direction of the sliding block.
The invention also provides a lithium battery pole piece production line which comprises the winding mechanism.
The beneficial effects of the invention are:
when the winding mechanism is used for changing the roll, the position of a winding shaft is not required to be changed, but the driving assembly is used for driving the moving arm to pull the material to be wound to the winding shaft for changing the roll, so that the traction force required during roll changing can be greatly reduced, the use cost is reduced, and the market competitiveness is improved; after the material is drawn to the winding shaft, the roll changing device drives the roll seat to rotate, the orientation of the material at the gap is changed, the material can smoothly reach the winding shaft, then the roll changing device pushes the material to move, the material is adhered to the winding shaft to be wound, and meanwhile, the cutter device is used for cutting off the material, so that the material at the gap is connected with the winding shaft which finishes winding, and online automatic roll changing is realized;
this winding mechanism utilizes the material to pass the first roller that is close and the second design that is close the clearance between the roller, not only can realize the removal route of fast switch over material, can also make the positive and negative both sides of material be close the roller by first roller and the second respectively and support and guide, stability when improving the material rolling.
When a winding shaft is wound, the driving component drives the moving arm to move towards another winding shaft, and the following advantages can be obtained by matching with the roller seat and the design of the first approaching roller and the second approaching roller on the roller seat:
on the one hand, when the winding shaft winds materials, along with the increase of the diameter of the material coil on the winding shaft, the moving arm and the roller seat on the moving arm correspondingly move towards the winding shaft which is not wound, so that a small and basically unchanged distance is always maintained between the material coil and the corresponding first approaching roller or second approaching roller, the first approaching roller and the second approaching roller are always close to the winding shaft which is winding, the first approaching roller and the second approaching roller can compress the materials better, the materials are prevented from swinging in the winding process, and the phenomenon that wrinkles or ribs (obvious protrusions formed on the surface of the material coil) of the material coil are reduced.
On the other hand, when one winding shaft is wound, the movable arm gradually moves towards the other winding shaft, so that after one winding shaft is wound, the movable arm also reaches the position close to the other winding shaft, the moving stroke of the movable arm required to move can be shortened when the winding shaft is replaced, the winding replacement efficiency is improved, and the structure of the winding replacement mechanism can be more compact.
Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic cross-sectional view of a winding mechanism of the present invention;
FIG. 2 is a three-dimensional schematic view of the winding mechanism of the present invention;
FIG. 3 is a schematic view of the moving arm and the set of proximity rollers thereon in cooperation with the first and second take-up spools;
FIG. 4 is a three-dimensional schematic view of the moving arm and the access roller set and the change reel device arranged thereon;
FIG. 5 is an enlarged partial view of A in FIG. 4;
FIG. 6 is an enlarged partial schematic view of B in FIG. 4;
FIG. 7 is a schematic view of the parts on the side of the moving arm facing away from the side adjacent the set of rollers;
FIG. 8 is a schematic view of the parts on the side of the moving arm adjacent to the side of the roller set;
FIG. 9 is a schematic view of a pusher;
FIG. 10 is a schematic view of the cantilever support at a dead-center position
FIG. 11 is a schematic view of the operation of the proximity roller set switching from the first state to the second state;
FIG. 12 is a schematic diagram of the operation of the proximity roller set switching from the second condition to the first condition;
in the figure: 1. approaching the roller set; 101. a first approach roller 102, a second approach roller 103, a gap 104, a roller seat;
2. a rotation assembly; 201. the system comprises a reel changing motor 202, an intermediate gear 203, a driven gear 204, a driving gear 205 and a worm and gear speed reducer;
3. lifting and pressing the assembly; 301. a pressure lifting cylinder 302 and a swing seat;
4. a cutter device; 401. a first cutter, 402, a first cutter cylinder, 403, a second cutter, 404, a second cutter cylinder;
5. a material pushing device; 501. the device comprises a telescopic pushing assembly 502, a rotating assembly 503 and a pushing arm;
6. a cantilever support means; 601. the device comprises a support arm 602, a connecting rod 603, a sliding block 604 and a support cylinder;
7. a moving arm; 8. a first winding shaft; 9. a second winding shaft; 10. a drive assembly; 11. synchronous shaft, 12, guide roller, 13, frame, 14, material roll, 15 and material.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
As shown in fig. 1-12, a winding mechanism comprises a frame 13, a winding group, a moving arm 7, an approach roller group 1, a roll changing device, a driving assembly 10 and a cutter device 4;
as shown in fig. 1 to 3, the winding set is mounted on the rack 13, and the winding set includes two winding shafts for winding the material 15, in this embodiment, the material 15 may be a lithium battery pole piece, but is not limited thereto, and may also be other film materials or sheet materials, etc.; the two winding shafts are respectively a first winding shaft 8 and a second winding shaft 9, the first winding shaft 8 and the second winding shaft 9 can be driven by the same motor and can also be driven by independent motors respectively, for example, a main shaft of the motor is in transmission connection with an input shaft of a speed reducer, and an output shaft of the speed reducer is in transmission connection with the winding shafts, so that the torque can be improved by using the speed reducer;
the moving arm 7 is mounted on the frame 13 and can reciprocate between the first winding shaft 8 and the second winding shaft 9;
as shown in fig. 4-6, the proximity roller group 1 has a roller seat 104, a first proximity roller 101 and a second proximity roller 102, in this embodiment, the first proximity roller 101 and the second proximity roller 102 can be, but are not limited to, rubber rollers, in this embodiment, the first winding shaft 8, the second winding shaft 9, the first proximity roller 101 and the second proximity roller 102 can be arranged in parallel to each other, the first proximity roller 101 and the second proximity roller 102 are rotatably connected to the roller seat 104, and a gap 103 is left between the first proximity roller 101 and the second proximity roller 102, and the roller seat 104 is mounted on the moving arm 7;
the winding changing device is used for driving the roller seat 104 to rotate, so that the approaching roller group 1 is switched between a first state and a second state to change the orientation of the material 15 at the gap 103, in the first state, the material 15 winds through the second approaching roller 102 and passes through the gap 103 and is guided to the first winding shaft 8 by the first approaching roller 101, and in the second state, the material 15 winds through the first approaching roller 101 and passes through the gap 103 and is guided to the second winding shaft 9 by the second approaching roller 102; the moving arm 7 may also be provided with guide rolls 12, through which guide rolls 12 the material 15 is passed to approach the set of rolls 1.
The driving assembly 10 is used for driving the moving arm 7 to gradually move to another winding shaft when one winding shaft winds the materials 15;
when the first winding shaft 8 finishes winding, the winding changing device is used for driving the second approaching roller 102 to move so that the part of the material 15, corresponding to the second approaching roller 102, is bonded on the second winding shaft 9, and the cutter device 4 is used for cutting off the part of the material 15, between the second approaching roller 102 and the first winding shaft 8;
when the second winding shaft 9 finishes winding, the winding changing device is used for driving the first approaching roller 101 to move so that the part, corresponding to the first approaching roller 101, of the material 15 is bonded on the first winding shaft 8, and the cutter device 4 is used for cutting off the part, located between the first approaching roller 101 and the second winding shaft 9, of the material 15; it should be noted that, when the reel changer drives the first approaching roller 101 or the second approaching roller 102 to move to the corresponding winding shaft to be wound, the winding shaft to be wound is already pasted with the adhesive tape or the double-sided adhesive tape, specifically, the adhesive tape or the double-sided adhesive tape can be pasted on the winding shaft manually, and the adhesive tape or the double-sided adhesive tape can also be pasted on the winding shaft by the pasting mechanism in the prior art, which is not described in detail in this embodiment.
In this embodiment, the winding group, the moving arm 7, the approach roller group 1, the roll changing device, the driving assembly 10 and the cutter device 4 together form a winding unit, and two winding units can be configured on the rack 13 according to actual requirements to form four-axis winding, that is, four winding shafts;
when the winding mechanism is used for changing the roll, the position of a winding shaft is not required to be changed, but the driving component 10 is used for driving the moving arm 7 to pull the material 15 to be wound to the winding shaft to be wound for changing the roll, so that the traction force required during roll changing can be greatly reduced, the use cost is reduced, and the market competitiveness is improved; after the material 15 is pulled to the winding shaft to be wound, the roll changing device drives the roller seat 104 to rotate, the orientation of the material 15 at the gap 103 is changed, so that the material 15 can smoothly reach the winding shaft to be wound, then the roll changing device pushes the material 15 to move, the material 15 is stuck on the winding shaft to be wound, meanwhile, the cutter device 4 is utilized to cut the material 15, and the material 15 at the gap 103 is connected with the winding shaft which is wound, so that the online automatic roll changing is realized;
this winding mechanism utilizes the material 15 to pass the first design that is close roller 101 and the second and is close clearance 103 between the roller 102, not only can realize the removal route of fast switch-over material 15, can also make the positive and negative both sides of material 15 be close roller 101 and the second respectively and be close roller 102 support and guide, stability when improving the material 15 rolling.
When one winding shaft is wound, the driving component 10 drives the moving arm 7 to move towards the other winding shaft, and the design of the roller seat 104 and the first approach roller 101 and the second approach roller 102 thereon can at least obtain the following advantages:
on one hand, when the material roll 14 on the winding shaft is wound, the moving arm 7 and the roller seat 104 on the moving arm correspondingly move towards the winding shaft which is not wound along with the increase of the roll diameter of the material roll 14 on the winding shaft, so that the material roll 14 and the corresponding first approaching roller 101 or second approaching roller 102 always maintain a small and basically unchanged distance, the first approaching roller 101 and the second approaching roller 102 are always close to the winding shaft which is winding, the first approaching roller 101 and the second approaching roller 102 are used for better pressing the material 15, the material 15 is prevented from swinging in the winding process, and wrinkles or broken ribs (obvious protrusions formed on the surface of the material roll 14) of the material roll 14 are reduced.
On the other hand, when one winding shaft is wound, the moving arm 7 gradually moves towards the other winding shaft, so that after one winding shaft is wound, the moving arm 7 also arrives near the other winding shaft, the moving stroke of the moving arm 7 required by the winding shaft can be shortened when the winding shaft is replaced, the winding replacement efficiency is improved, and the structure of the winding replacement mechanism is more compact.
As an example, the reel changer includes a rotation assembly 2;
as shown in fig. 4-8, the rotation assembly 2 includes a reel changing motor 201, an intermediate gear 202 and a driven gear 203, the reel changing motor 201 is fixed on the moving arm 7, a main shaft of the reel changing motor 201 is in transmission connection with the intermediate gear 202, the intermediate gear 202 is meshed with the driven gear 203, the driven gear 203 can be an incomplete gear and is fixedly connected with the roller base 104;
when the roll changing device works, the roll changing motor 201 drives the intermediate gear 202 to rotate, the intermediate gear 202 drives the driven gear 203 to rotate, the roller seat 104 rotates around the axis of the driven gear 203, and the first approaching roller 101 and the second approaching roller 102 rotate along with the roller seat 104;
specifically, the driven gear 203 rotates forward 180 °, the approach roller group 1 is switched from the first state to the second state, the driven gear 203 rotates backward 180 °, and the approach roller group 1 is switched from the second state to the first state; in the first state of the embodiment, when the first winding shaft 8 winds the material 15, the axis of the first approaching roller 101, the axis of the first winding shaft 8 and the axis of the second winding shaft 9 are parallel and coplanar; in the second state, when the second winding shaft 9 winds the material 15, the axis of the second approaching roller 102, the axis of the first winding shaft 8 and the axis of the second winding shaft 9 are parallel to and coplanar with each other.
As an example, as shown in fig. 4, there are two roller holders 104, and a first proximity roller 101 and a second proximity roller 102 are connected between the two roller holders 104; two moving arms 7 are fixedly connected with each other, and a first approaching roller 101 and a second approaching roller 102 are positioned between the two moving arms 7;
each moving arm 7 is provided with an intermediate gear 202 and a driven gear 203, the two roller seats 104 are respectively positioned on the two moving arms 7, the driven gear 203 is fixedly connected with the roller seat 104 on the side where the driven gear 203 is positioned, and the intermediate gear 202 is meshed with the driven gear 203 on the side where the driven gear is positioned;
a synchronizing shaft 11 is arranged between the two moving arms 7, two ends of the synchronizing shaft 11 are respectively provided with a driving gear 204, the driving gear 204 is meshed with a driven gear 203 on the moving arm 7 on the side where the driving gear 204 is located, a main shaft of the coil changing motor 201 can be in transmission connection with an input shaft of a worm and gear speed reducer 205, and an output shaft of the worm and gear speed reducer 205 can be coaxially and fixedly connected with any one driving gear 204;
so, the change of lap motor 201 accessible worm gear speed reducer 205 increase output torque to drive driving gear 204 and rotate, two driving gear 204 rotate in step thereupon, and drive the intermediate gear 202 rotation of its place side respectively, drive the driven gear 203 rotation of its place side by intermediate gear 202 again, thereby realize forming both ends synchronous drive to being close roller set 1, avoid being close roller set 1 and take place the skew, ensure the level and smooth rolling of material 15.
As an example, the reel changer further comprises a lifting and pressing assembly 3; the lifting and pressing assembly 3 is used for driving the roller seat 104 to rotate around the axis of the intermediate gear 202;
as shown in fig. 5, 6 and 8, the pressure lifting assembly 3 includes a pressure lifting cylinder 301 and a swing base 302, the swing base 302 is rotatably mounted on the moving arm 7, and a rotation center line of the swing base 302 on the moving arm 7 is coaxially disposed with the intermediate gear 202, one end of the pressure lifting cylinder 301 is hinged with the moving arm 7, and the other end is hinged with the swing base 302, the roller base 104 is rotatably mounted on the swing base 302, and a rotation center line of the roller base 104 on the swing base 302 is coaxially disposed with the driven gear 203;
in this embodiment, a planetary mechanism type design is adopted, so that the rotation assembly 2 and the pressure lifting assembly 3 are compatible with each other, and the structure is more compact, specifically, when the pressure lifting cylinder 301 extends out, the swing seat 302 swings towards the second winding shaft 9 direction, the driven gear 203 rotates around the intermediate gear 202 towards the second winding shaft 9 direction, when the pressure lifting cylinder 301 retracts, the swing seat 302 swings towards the first winding shaft 8 direction, and the driven gear 203 rotates around the intermediate gear 202 towards the first winding shaft 8 direction;
that is, the approaching roller group 1 can rotate around the axis of the driven gear 203 to realize the switching between the first state and the second state, and can also rotate around the axis of the intermediate gear 202 to realize the adhesion of the pressing material 15 on the winding shaft;
in this embodiment, the speed of the driving assembly 10 driving the moving arm 7 to move is mainly determined by the winding speed, usually the driving assembly 10 driving the moving arm 7 is slow, and the diameter of the material roll 14 wound on the winding shaft is also determined according to the actual situation, therefore, by the design of the lifting and pressing assembly 3, the approach roller set 1 can be independently driven to swing towards the first winding shaft 8 or the second winding shaft 9, so as to rapidly push the material 15 to adhere to the winding shaft, thereby avoiding the problem that the pole piece normally walks but cannot be timely and effectively adhered to the winding shaft to be wound, and avoiding the pole piece from accumulating between the winding shaft to be wound and the approach roller set 1, so as to prevent the double-sided adhesive on the winding shaft from adhering the coating on the accumulated pole piece to cause the accumulated pole piece to form a waste product;
in addition, the design of the lifting and pressing assembly 3 can also correct the position of the proximity roller set 1, so that the proximity roller set 1 can accurately reach a preset position during winding; the lifting and pressing assembly 3 drives the approach roller set 1 to stick the material 15 on the winding shaft, and then drives the approach roller set 1 to reset, so that the approach roller set 1 is not contacted with the winding shaft and the material roll 14 on the winding shaft.
As an example, there are two roller holders 104, and the first and second proximity rollers 101 and 102 are connected between the two roller holders 104; two moving arms 7 are fixedly connected with each other and are parallel to each other, a first approaching roller 101 and a second approaching roller 102 are positioned between the two moving arms 7, and both the first approaching roller 101 and the second approaching roller 102 can be arranged perpendicular to the moving arms 7;
each moving arm 7 is provided with a pressure lifting component 3, a swinging seat 302 of the pressure lifting component 3 is rotatably arranged on the corresponding moving arm 7, one end of a pressure lifting cylinder 301 of the pressure lifting component 3 is hinged with the corresponding moving arm 7, and two roller seats 104 are respectively arranged on the two pressure lifting components 3;
the two lifting and pressing assemblies 3 can apply force from two ends close to the roller set 1 respectively to form two-end synchronous driving, so that the roller set 1 is prevented from being close to be inclined, and the smooth bonding of the material 15 is ensured.
As an example, as shown in fig. 4, 6 and 8, the cutter device 4 includes a first cutter 401, a first cutter cylinder 402, a second cutter 403 and a second cutter cylinder 404; the first cutter 401 and the second cutter 403 are both movably arranged on the moving arm 7; the cylinder body of the first cutter cylinder 402 and the cylinder body of the second cutter cylinder 404 are both arranged on the moving arm 7;
the first cutter cylinder 402 is used for driving the first cutter 401 to move so as to cut off the part of the material 15 between the second approach roller 102 and the first winding shaft 8; for example, the first cutter cylinder 402 may drive the first cutter 401 to rotate or move linearly to cut off the material 15;
the second cutter cylinder 404 is used for driving the second cutter 403 to move so as to cut off the part of the material 15 between the second approach roller 102 and the first winding shaft 8; for example, the second cutter cylinder 404 can drive the second cutter 403 to rotate or move linearly to cut off the material 15;
it should be noted that, in this embodiment, the cutter device 4 is not limited to adopt the above structure, and a single cutter may be configured on the moving arm 7, and the single motor or cylinder drives the cutter to rotate, so as to cut off the material 15; other forms of cutter means 4 known in the art may be used.
The driving assembly 10 can be, but is not limited to, a chain type linear reciprocating mechanism, a screw nut linear reciprocating mechanism, a cylinder and the like; the winding diameter of the material roll 14 on the winding shaft can be obtained in real time by adopting any monitoring device in the prior art, and the control system controls the driving assembly 10 to enable the moving arm 7 to gradually move towards the direction far away from the material roll 14 along with the gradual increase of the winding diameter of the material roll 14 according to the feedback of the monitoring device; for example, the moving arm 7 may further be provided with an opposite type photoelectric sensor to monitor the roll diameter of the material roll 14 on the wind-up roll, when the roll diameter of the material roll 14 increases, the outermost side of the material roll will block the light of the opposite type photoelectric sensor, and the opposite type photoelectric sensor will then feed back information to the control system, and the control system controls the driving assembly 10 to move the moving arm 7 in the direction away from the material roll 14.
As an example, the pushing device 5 is further included, as shown in fig. 1 and 9, the pushing device 5 has a telescopic pushing assembly 501, a rotating assembly 502 and a pushing arm 503, the pushing arm 503 is installed on the output end of the rotating assembly 502, and the rotating assembly 502 is installed on the output end of the telescopic pushing assembly 501;
the telescopic pushing assembly 501 is used for driving the rotating assembly 502 and the pushing arm 503 thereon to reciprocate along the axial direction of the winding shaft, and the rotating assembly 502 is used for driving the pushing arm 503 to rotate so that the pushing arm 503 reaches different winding shafts; the telescopic pushing assembly 501 can be, but is not limited to, an air cylinder and an electric push rod, and can also be an auxiliary discharging device for a battery pole piece coil disclosed by the application number of cn201820682857.X, and the rotating assembly 502 can be, but is not limited to, a speed reduction motor;
according to the design, a plurality of winding shafts can be realized, one telescopic pushing assembly 501 is shared, the structure compactness is improved, specifically, the pushing arm 503 is rotated to the corresponding winding shaft through the rotating assembly 502, then the telescopic pushing assembly 501 drives the pushing arm 503 to move towards the free end of the winding shaft along the axial direction of the winding shaft, and then the material roll 14 unloaded from the winding shaft can be received by a conveying belt, an AGV trolley and the like, so that the automatic unloading of the material roll 14 is completed.
In some examples, as shown in fig. 2 and 10, one end of each winding shaft is mounted on the frame 13, and the other end of each winding shaft is suspended, and a cantilever support device 6 is correspondingly arranged at the suspended end of each winding shaft;
the cantilever supporting device 6 comprises a supporting arm 601, a connecting rod 602, a sliding block 603 and a supporting cylinder 604; one end of a supporting cylinder 604 is installed on the frame 13, the other end of the supporting cylinder 604 is connected with a sliding block 603, the sliding block 603 is installed on the frame 13 in a sliding manner along the axial direction of the supporting cylinder 604, one end of a supporting arm 601 is hinged with the frame 13, the other end of the supporting arm is used for supporting the suspended end of the corresponding winding shaft, one end of a connecting rod 602 is hinged with the sliding block 603 to form a first hinge point, and the other end of the connecting rod 602 is hinged with the middle part of the supporting arm 601 to form a second hinge point; when the supporting arm 601 holds the suspended end of the winding shaft corresponding to the supporting arm, the connecting line between the first hinge point and the second hinge point is perpendicular to the sliding direction of the sliding block 603.
The cantilever supporting device 6 can support the suspended end of the winding shaft when the winding shaft is wound, so that the winding shaft is prevented from bending and deforming; by utilizing the fact that a connecting line between the first hinge point and the second hinge point is perpendicular to the sliding direction of the sliding block 603, the cantilever supporting device 6 enables the supporting arm 601 to support the suspended end of the winding shaft at the dead point position, the requirement for supporting force of the supporting cylinder 604 can be reduced, the size of the supporting cylinder 604 is reduced, and the cost is reduced.
As an indication column, a lithium battery pole piece production line comprises the winding mechanism.
The winding mechanism can simultaneously wind a plurality of strands of lithium battery pole pieces, and each winding shaft can simultaneously wind a plurality of strands of lithium battery pole pieces so as to form a plurality of strands of pole piece coils which are distributed at intervals along the axial direction of the winding shaft;
the specific working principle of the winding mechanism in the above embodiment is as follows:
when a first winding shaft 8 winds materials 15 (the materials 15 to be wound can be lithium battery pole pieces), the approach roller group 1 is in a first state, the materials 15 wind around the guide roller 12 to reach the second approach roller 102, pass through the gap 103 and then are guided to the first winding shaft 8 by the first approach roller 101, but the first approach roller 101 is not in contact with the first winding shaft 8 and the material roll 14 on the first winding shaft 8, and the driving assembly 10 drives the moving arm 7 to gradually move to the second winding shaft 9 along with the gradual increase of the roll diameter of the material roll 14;
as shown in fig. 11, after the first winding shaft 8 is fully wound with the material 15, the winding-changing motor 201 drives the driven gear 203 to rotate the approaching roller group 1 forward 180 degrees around the axis of the driven gear 203, the approaching roller group 1 reaches the second state from the first state to change the orientation of the material 15 at the gap 103, the material 15 is switched to reach the first approaching roller 101 through the guide roller 12 and is guided to the second winding shaft 9 through the second approaching roller 102 after passing through the gap 103, and the second winding shaft 9 is ready for winding; then the pressing cylinder 301 drives the approach roller group 1 to swing around the axis of the middle gear 202 to the direction of the second winding shaft 9, the second approach roller 102 presses the material 15, the part of the material 15 corresponding to the second approach roller 102 is bonded on the second winding shaft 9, meanwhile, the first cutter cylinder 402 of the cutter device 4 drives the first cutter 401 to move, so that the part of the material 15 between the second approach roller 102 and the first winding shaft 8 is cut off, and then the second winding shaft 9 starts to wind;
when the second winding shaft 9 winds the material 15, the approach roller group 1 is in the second state, the material 15 winds through the guide roller 12 to reach the first approach roller 101, passes through the gap 103 and is guided to the second winding shaft 9 by the second approach roller 102, but the second approach roller 102 is not in contact with the second winding shaft 9 and the material roll 14 on the second winding shaft 9, and the driving component 10 drives the moving arm 7 to gradually move to the first winding shaft 8 along with the gradual increase of the roll diameter of the material roll 14.
As shown in fig. 12, after the second winding shaft 9 is fully wound with the material 15, the winding change motor 201 drives the driven gear 203 to reverse the direction of the approaching roller group 1 by 180 ° around the axis of the driven gear 203, and the approaching roller group 1 reaches the first state from the second state to change the orientation of the material 15 at the gap 103, and the material 15 is switched to reach the second approaching roller 102 through the guide roller 12 and is guided to the first winding shaft 8 by the first approaching roller 101 after passing through the gap 103, so that the first winding shaft 8 is ready to be wound; then, the pressing cylinder 301 is lifted to drive the approach roller group 1 to swing around the axis of the intermediate gear 202 to the direction of the first winding shaft 8, the first approach roller 101 presses the material 15, so that the part of the material 15 corresponding to the first approach roller 101 is bonded on the first winding shaft 8, and meanwhile, the second cutter cylinder 404 of the cutter device 4 drives the second cutter 403 to move, so that the part of the material 15 between the first approach roller 101 and the second winding shaft 9 is cut off; subsequently, the first winding shaft 8 starts winding.
In light of the foregoing description of the preferred embodiment of the present invention, it is intended that the appended claims be interpreted as including all such alterations and modifications as fall within the true spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a winding mechanism which characterized in that: the method comprises the following steps:
a frame (13);
the winding set is arranged on the rack (13), and comprises two winding shafts for winding the material (15), namely a first winding shaft (8) and a second winding shaft (9);
the moving arm (7) can be arranged on the rack (13) in a reciprocating manner between the two winding shafts;
the approaching roller set (1) is provided with a roller seat (104), a first approaching roller (101) and a second approaching roller (102), the first approaching roller (101) and the second approaching roller (102) are rotatably connected to the roller seat (104), a gap (103) is reserved between the first approaching roller (101) and the second approaching roller (102), and the roller seat (104) is installed on the moving arm (7);
the winding changing device is used for driving the roller seat (104) to rotate, so that the approaching roller group (1) is switched between a first state and a second state to change the orientation of the material (15) at the gap (103), in the first state, the material (15) is guided to the first winding shaft (8) by the first approaching roller (101) after passing through the second approaching roller (102) and the gap (103), and in the second state, the material (15) is guided to the second winding shaft (9) by the second approaching roller (102) after passing through the first approaching roller (101) and the gap (103);
the driving assembly (10) is used for driving the moving arm (7) to move to another winding shaft when one winding shaft winds materials (15);
when the first winding shaft (8) finishes winding, the winding changing device is used for driving the second approaching roller (102) to move so that the part, corresponding to the second approaching roller (102), of the material (15) is bonded to the second winding shaft (9), and the cutter device (4) is used for cutting off the part, located between the second approaching roller (102) and the first winding shaft (8), of the material (15);
when the second winding shaft (9) finishes winding, the winding changing device is used for driving the first approaching roller (101) to move so that the part, corresponding to the first approaching roller (101), of the material (15) is bonded on the first winding shaft (8), and the cutter device (4) is used for cutting off the part, located between the first approaching roller (101) and the second winding shaft (9), of the material (15).
2. The winding mechanism of claim 1, wherein: the coil changing device comprises a rotation assembly (2);
the rotation assembly (2) comprises a coil changing motor (201), an intermediate gear (202) and a driven gear (203), the coil changing motor (201) is fixed on the moving arm (7), a main shaft of the coil changing motor is in transmission connection with the intermediate gear (202), the intermediate gear (202) is meshed with the driven gear (203), and the driven gear (203) is fixedly connected with the roller seat (104).
3. The winding mechanism of claim 2, wherein: the two roller seats (104) are provided, and the first approaching roller (101) and the second approaching roller (102) are connected between the two roller seats (104); the two moving arms (7) are fixedly connected with each other, and the first approaching roller (101) and the second approaching roller (102) are positioned between the two moving arms (7);
each moving arm (7) is provided with an intermediate gear (202) and a driven gear (203), the two roller seats (104) are respectively positioned on the two moving arms (7), the driven gear (203) is fixedly connected with the roller seat (104) on the side where the driven gear is positioned, and the intermediate gear (202) is meshed with the driven gear (203) on the side where the driven gear is positioned;
a synchronizing shaft (11) is arranged between the two moving arms (7), two ends of the synchronizing shaft (11) are respectively provided with a driving gear (204), and the driving gears (204) are meshed with driven gears (203) on the moving arms (7) on the sides of the driving gears.
4. The winding mechanism according to claim 2, wherein: the roll changing device also comprises a pressure lifting component (3);
the pressure lifting assembly (3) is used for driving the roller seat (104) to rotate around the axis of the intermediate gear (202).
5. The winding mechanism of claim 4, wherein: the lifting and pressing assembly (3) comprises a lifting and pressing cylinder (301) and a swinging seat (302), the swinging seat (302) is rotatably installed on the moving arm (7), the rotating center line of the swinging seat (302) on the moving arm (7) is coaxially arranged with the intermediate gear (202), one end of the lifting and pressing cylinder (301) is hinged with the moving arm (7), the other end of the lifting and pressing cylinder is hinged with the swinging seat (302), the roller seat (104) is rotatably installed on the swinging seat (302), and the rotating center line of the roller seat (104) on the swinging seat (302) is coaxially arranged with the driven gear (203).
6. The winding mechanism according to claim 5, wherein: the two roller seats (104) are provided, and the first approaching roller (101) and the second approaching roller (102) are connected between the two roller seats (104); the two moving arms (7) are fixedly connected with each other, and the first approaching roller (101) and the second approaching roller (102) are positioned between the two moving arms (7);
each moving arm (7) is provided with one pressure lifting assembly (3), a swinging seat (302) of each pressure lifting assembly (3) is rotatably arranged on the corresponding moving arm (7), one end of a pressure lifting cylinder (301) of each pressure lifting assembly (3) is hinged with the corresponding moving arm (7), and two roller seats (104) are respectively arranged on the two pressure lifting assemblies (3).
7. The winding mechanism of claim 1, wherein: the cutter device (4) comprises a first cutter (401), a first cutter cylinder (402), a second cutter (403) and a second cutter cylinder (404); the first cutter (401) and the second cutter (403) are movably arranged on the moving arm (7); the cylinder body of the first cutter cylinder (402) and the cylinder body of the second cutter cylinder (404) are both arranged on the moving arm (7);
the first cutter cylinder (402) is used for driving the first cutter (401) to move so as to cut off the part of the material (15) between the second approaching roller (102) and the first winding shaft (8);
the second cutter cylinder (404) is used for driving a second cutter (403) to move so as to cut off the position, between the second approaching roller (102) and the first winding shaft (8), of the material (15).
8. The winding mechanism of claim 1, wherein: the automatic feeding device is characterized by further comprising a material pushing device (5), wherein the material pushing device (5) is provided with a telescopic material pushing assembly (501), a rotating assembly (502) and a pushing arm (503), the pushing arm (503) is installed at the output end of the rotating assembly (502), and the rotating assembly (502) is installed at the output end of the telescopic material pushing assembly (501);
the telescopic pushing assembly (501) is used for driving the rotating assembly (502) and the pushing arm (503) on the rotating assembly to reciprocate along the axis direction of the winding shaft, and the rotating assembly (502) is used for driving the pushing arm (503) to rotate so that the pushing arm (503) can reach different winding shafts.
9. The winding mechanism of claim 1, wherein: one end of each winding shaft is mounted on the rack (13), the other end of each winding shaft is suspended, and a cantilever supporting device (6) is correspondingly arranged at the suspended end of each winding shaft;
the cantilever supporting device (6) comprises a supporting arm (601), a connecting rod (602), a sliding block (603) and a supporting cylinder (604); one end of the supporting cylinder (604) is mounted on the rack (13), the other end of the supporting cylinder is connected with the sliding block (603), the sliding block (603) is slidably mounted on the rack (13) along the axis direction of the supporting cylinder (604), one end of the supporting arm (601) is hinged to the rack (13), the other end of the supporting arm is used for supporting the suspended end of the corresponding winding shaft, one end of the connecting rod (602) is hinged to the sliding block (603) to form a first hinge point, and the other end of the connecting rod (602) is hinged to the middle of the supporting arm (601) to form a second hinge point; when the supporting arm (601) supports the suspended end of the winding shaft corresponding to the supporting arm, the connecting line between the first hinge point and the second hinge point is vertical to the sliding direction of the sliding block (603).
10. The utility model provides a lithium battery pole piece production line which characterized in that: comprising a winding mechanism according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211397668.5A CN115448073B (en) | 2022-11-09 | 2022-11-09 | Winding mechanism and lithium battery pole piece production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211397668.5A CN115448073B (en) | 2022-11-09 | 2022-11-09 | Winding mechanism and lithium battery pole piece production line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115448073A true CN115448073A (en) | 2022-12-09 |
| CN115448073B CN115448073B (en) | 2023-03-24 |
Family
ID=84311380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211397668.5A Active CN115448073B (en) | 2022-11-09 | 2022-11-09 | Winding mechanism and lithium battery pole piece production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115448073B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118073028A (en) * | 2024-04-25 | 2024-05-24 | 常州彦锋特种线缆有限公司 | Device and method for manufacturing multi-core cable stranded wire |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848823A (en) * | 1973-09-17 | 1974-11-19 | Proctor & Schwartz Inc | Web winding machine |
| CN1494962A (en) * | 1997-11-27 | 2004-05-12 | �����ع�ҵ��ʽ���� | Belt plate winding system |
| CN101475105A (en) * | 2009-01-21 | 2009-07-08 | 中材科技股份有限公司 | Automatic coiling mechanism and winding machine with the same |
| DE202014009285U1 (en) * | 2014-11-22 | 2015-02-05 | Heino Sommer | Dual winding u. Autom. Combi roll change system |
| CN217376656U (en) * | 2022-03-31 | 2022-09-06 | 常州纳科诺尔精密轧制设备有限公司 | Tension cuts off self-interacting mechanism |
| CN115246593A (en) * | 2021-12-02 | 2022-10-28 | 浙江理工大学 | Portable cloth roller cuts cloth device based on intelligence tripper |
-
2022
- 2022-11-09 CN CN202211397668.5A patent/CN115448073B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848823A (en) * | 1973-09-17 | 1974-11-19 | Proctor & Schwartz Inc | Web winding machine |
| CN1494962A (en) * | 1997-11-27 | 2004-05-12 | �����ع�ҵ��ʽ���� | Belt plate winding system |
| CN101475105A (en) * | 2009-01-21 | 2009-07-08 | 中材科技股份有限公司 | Automatic coiling mechanism and winding machine with the same |
| DE202014009285U1 (en) * | 2014-11-22 | 2015-02-05 | Heino Sommer | Dual winding u. Autom. Combi roll change system |
| CN115246593A (en) * | 2021-12-02 | 2022-10-28 | 浙江理工大学 | Portable cloth roller cuts cloth device based on intelligence tripper |
| CN217376656U (en) * | 2022-03-31 | 2022-09-06 | 常州纳科诺尔精密轧制设备有限公司 | Tension cuts off self-interacting mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118073028A (en) * | 2024-04-25 | 2024-05-24 | 常州彦锋特种线缆有限公司 | Device and method for manufacturing multi-core cable stranded wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115448073B (en) | 2023-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103935805B (en) | A kind of thin film center surface winder | |
| CN202609646U (en) | Material receiving mechanism of central winding machine | |
| CN115448073B (en) | Winding mechanism and lithium battery pole piece production line | |
| CN103043477B (en) | A kind of rolling material-receiving device | |
| CN102794978B (en) | Automatic cutting receiving device for high-speed reeling printing machine | |
| CN114512703B (en) | Outer protection film wind of battery electricity core | |
| CN112278373B (en) | Full-automatic material belt rolling and packaging machine | |
| CN108675039B (en) | Winding process for realizing zero-speed punching and automatic rubberizing of lithium battery pole piece | |
| CN207834493U (en) | Full-automatic lithium battery cell winding machine | |
| CN108190585A (en) | A kind of automatic stripping connection device of compounding machine winding | |
| CN218988296U (en) | Non-stop production line for laser film composite transfer stripping | |
| CN215592162U (en) | Automatic discharging shaft feeding device for film roll division | |
| CN114104862A (en) | Automatic take-up equipment of multifunctional cable | |
| CN110371739B (en) | Full-automatic feeding method | |
| CN115881886B (en) | Rolling and slitting integrated machine for lithium battery pole piece | |
| CN217485525U (en) | Automatic roll-changing and adhesive-pasting device | |
| CN210192915U (en) | Ultrathin nanocrystalline strip winder | |
| CN116853866A (en) | Coiling mechanism is used in production of coating diaphragm | |
| CN216403256U (en) | Side cut waste collection device | |
| CN210655450U (en) | Contact roller and rolling mechanism | |
| CN213111794U (en) | Full-automatic foil winding device | |
| CN109353879B (en) | Double-station automatic glue rolling equipment and automatic glue rolling method | |
| CN112919176A (en) | Coiling mechanism is used in protection film production | |
| CN220774463U (en) | Reel pad pasting device and pole piece processing equipment | |
| CN221249859U (en) | Base film bonding tool and system for base film circulation feeding mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |