Automatic roll changing device of lithium battery isolating membrane slitting equipment

Abstract

The invention discloses an automatic roll changing device of lithium battery isolating membrane slitting equipment. The automatic roll changing device comprises a rolling turret mechanism, a positioning mechanism, an approaching mechanism and a hot melting mechanism. The winding turret mechanism is used for controlling the two slip shafts to conduct circumferential rotation of position exchange, and slip shaft fixing positions are arranged on the circumferential rotation tracks of the two slip shafts. The positioning mechanism comprises a slip shaft buckle plate and is used for controlling the slip shaft buckle plate to move towards and away from a slip shaft fixing position, and the slip shaft buckle plate is used for supporting and fixing a slip shaft on the slip shaft fixing position; the approaching mechanism comprises an approaching roller and is used for controlling the approaching roller to press towards or move away from the slip shaft arranged in the slip shaft fixing position; the hot melting mechanism comprises a hot fuse and is used for controlling the hot fuse to perform diaphragm cutting operation between the two slip shafts; according to the scheme, in the operation process of equipment, the automatic roll changing action can be completed, the link of manual unloading and carrying is reduced, and the risk of material roll damage caused by manual errors is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of roll changing devices, and in particular to an automatic roll changing device for lithium battery separator slitting equipment. Background Art

[0002] The diaphragm slitting equipment is a key tool and equipment for the preparation and production of lithium-ion battery diaphragms. The traditional winding method is the swing arm air chuck winding. Specifically, when the slitting equipment stops, the unwinding empty roll is manually removed and the material roll splicing tape is reinstalled. After the machine is turned on and the tape is led to the joint to reach the rewinding, the winding swing arm is lifted, the air chuck is loosened, one side of the swing arm is moved away, and the finished material roll is unloaded. The empty roll is replaced and moved back to the swing arm, the air chuck is inflated, the tape is spliced, and then the machine is turned on. The diaphragm slitting process is completed. However, this method has many shortcomings:

[0003] 1. Manual roll changing takes a long time. The entire roll changing process takes 10-15 minutes to complete, which accounts for 30%-50% of the total slitting process on average, resulting in efficiency waste;

[0004] Second, at the rewinding position, a swing arm + air expansion chuck is used for rewinding. When unloading manually, the swing arm is inconvenient to move and may damage the roll in the process, resulting in the scrapping of the roll. Summary of the invention

[0005] The object of the present invention is to provide an automatic roll changing device for lithium battery separator slitting equipment to solve the problems of low efficiency and easy material waste in the prior art.

[0006] In order to solve the above technical problems, the present invention provides an automatic roll changing device for lithium battery separator slitting equipment, including a winding turret mechanism, a positioning mechanism, an approach mechanism and a hot melt mechanism; the winding turret mechanism includes two parallel arranged differential shafts, the winding turret mechanism is used to control the circumferential rotation of the two differential shafts to exchange positions, and a differential shaft fixing position is provided on the circumferential rotation trajectory of the two differential shafts; the positioning mechanism includes a differential shaft buckle plate, the positioning mechanism is used to control the differential shaft buckle plate to move toward and away from the differential shaft fixing position, and the differential shaft buckle plate is used to support and fix the differential shaft on the differential shaft fixing position; the approach mechanism includes an approach roller, the approach mechanism is used to control the approach roller to press toward or move away from the differential shaft placed in the differential shaft fixing position; the hot melt mechanism includes a hot melt wire, and the hot melt mechanism is used to control the hot melt wire to perform a separator cutting operation between the two differential shafts.

[0007] In one of the embodiments, the winding turret mechanism further includes a power unit and a turntable; the power unit is used to drive the turntable to rotate; the turntable is provided with two slip shafts, and the two slip shafts are arranged outside the circumference of the rotation center of the turntable.

[0008] In one of the embodiments, the turntable is further provided with guide rollers, and the guide rollers and the slip shafts are alternately arranged in a circumferential direction around the rotation center of the turntable.

[0009] In one of the embodiments, one end of the differential shaft buckle plate is used for rotational installation at the position to be installed, and the other opposite end of the differential shaft buckle plate is provided with a snap-fitting recess, and the snap-fitting recess is used to snap-fit ​​to the outside of the differential shaft; the positioning mechanism also includes a positioning cylinder, and the telescopic rod of the positioning cylinder is hinged to the differential shaft buckle plate, and the hinged position of the two is adjacent to the end of the differential shaft buckle plate for rotational installation.

[0010] In one embodiment, the approach mechanism also includes a base, and an approach swing arm and an approach cylinder arranged on the base; one end of the approach swing arm is rotatably mounted on the base, and the other opposite end of the approach swing arm is provided with the approach roller; the telescopic rod of the approach cylinder is hinged to the approach swing arm, and the hinged position of the two is adjacent to the end of the approach swing arm for rotatable mounting.

[0011] In one of the embodiments, the approach mechanism further includes a translation unit, and the translation unit is used to drive the approach mechanism to move toward and away from the winding turret mechanism.

[0012] In one of the embodiments, the translation unit includes a translation motor, a translation transmission wheel and a translation rack; the translation motor is used to drive the translation transmission wheel to rotate; the translation transmission wheel is meshed with the translation rack for transmission; the translation rack is arranged at the bottom of the base.

[0013] In one of the embodiments, the hot melt mechanism further includes a guide rail, a slider and a cutting drive motor; the slider is slidably mounted on the guide rail; the hot fuse is provided on the slider; and the cutting drive motor is used to drive the slider to move.

[0014] In one embodiment, the automatic roll changing device further includes an electrostatic eliminator, and the electrostatic eliminator is disposed at a position adjacent to the fixed position of the slip shaft.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The roll changing action is completed during the operation of the equipment. The roll changing is automatic and the roll changing operation is simple. In addition, the roll changing time is greatly reduced because there is no shutdown.

[0017] 2. When unloading, the unloading trolley is directly connected to the slip shaft, which reduces the manual unloading and handling links and greatly reduces the risk of material roll damage due to human errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram provided by an embodiment of the present invention;

[0020] Figure 2 yes Figure 1 A schematic diagram of the positioning mechanism structure;

[0021] Figure 3 yes Figure 1 Schematic diagram of the approach mechanism structure

[0022] Figure 4 yes Figure 3 Schematic diagram of the structure viewed from above;

[0023] Figure 5 yes Figure 1 Schematic diagram of the hot melt mechanism structure;

[0024] Figure 6 yes Figure 1 Schematic diagram of the application status principle.

[0025] The reference numerals are as follows:

[0026] 10. Winding turret mechanism; 11. Slip shaft; 12. Slip shaft fixing position; 13. Power unit; 14. Turntable; 15. Guide roller;

[0027] 20. Positioning mechanism; 21. Slip differential shaft buckle plate; 211. Buckling concave position; 22. Positioning cylinder; 23. Locking cylinder;

[0028] 30. Approach mechanism; 31. Approach roller; 32. Base; 33. Approach swing arm; 34. Approach cylinder; 35. Translation unit; 351. Translation motor; 352. Translation transmission wheel; 353. Translation rack;

[0029] 40. hot melt mechanism; 41. hot melt wire; 42. guide rail; 43. slider; 44. cutting drive motor;

[0030] 50. Diaphragm;

[0031] 60. Static eliminator. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] The present invention provides an automatic roll changing device for lithium battery separator slitting equipment, which is implemented as follows: Figures 1 to 6 As shown, it includes a winding turret mechanism 10, a positioning mechanism 20, an approach mechanism 30 and a hot melt mechanism 40; the winding turret mechanism 10 includes two parallel arranged differential shafts 11, the winding turret mechanism 10 is used to control the circumferential rotation of the two differential shafts 11 to exchange positions, and a differential shaft fixing position 12 is provided on the circumferential rotation trajectory of the two differential shafts 11; the positioning mechanism 20 includes a differential shaft buckle plate 21, the positioning mechanism 20 is used to control the differential shaft buckle plate 21 to move toward and away from the differential shaft fixing position 12, and the differential shaft buckle plate 21 is used to support and fix the differential shaft 11 on the differential shaft fixing position 12; the approach mechanism 30 includes an approach roller 31, the approach mechanism 30 is used to control the approach roller 31 to press toward or move away from the differential shaft 11 placed in the differential shaft fixing position 12; the hot melt mechanism 40 includes a hot fuse 41, and the hot melt mechanism 40 is used to control the hot fuse 41 to cut the diaphragm 50 between the two differential shafts 11.

[0034] When used, the diaphragm 50 will be used Figure 5 In the layout shown, when the number of meters of the slitting machine reaches the set value, that is, the slip shaft 11 on the slip shaft fixed position 12 has completed the winding of the diaphragm 50, the equipment will start to prepare for the roll change, and the equipment starts to slow down to a low speed state, and the positioning mechanism 20 controls the slip shaft buckle plate 21 to retract, and the slip shaft buckle plate 21 and the slip shaft 11 on the slip shaft fixed position 12 are separated from each other, and the approach mechanism 30 controls the approach roller 31 to move away from the diaphragm 50; then the winding turret mechanism 10 controls the two slip shafts 11 to rotate, so that the slip shaft 11 originally in the slip shaft fixed position 12 moves away, and at the same time, the other slip shaft 11 moves to the slip shaft fixed position 12, and at this time the positioning mechanism 20 controls the slip shaft buckle plate 2 1 moves to the differential shaft fixing position 12, so that the differential shaft buckle plate 21 fixes the differential shaft 11 on the differential shaft fixing position 12; finally, the approach mechanism 30 controls the approach roller 31 to move toward the diaphragm 50 and keeps the diaphragm 50 and the differential shaft 11 separated from each other, and then the hot melt mechanism 40 controls the hot fuse 41 to quickly move toward the diaphragm 50 to melt the diaphragm 50, and at the same time, the approach mechanism 30 controls the approach roller 31 to press the diaphragm 50 toward the differential shaft 11, after the diaphragm 50 is attached to the differential shaft 11, the differential shaft 11 rotates, and the winding operation can be performed; it should be noted that the approach roller 31 will always press on the film roll during the winding process and provide a linearly increasing pressure during the winding process.

[0035] It should be pointed out that at this time, the hot melt mechanism 40 is also needed to retract the hot fuse 41 so that the equipment can start to speed up, and then the unloading trolley starts to unload the diaphragm 50 that has been rolled up for the slip shaft 11 that has been rolled up and transport it, and replace the empty reel for the slip shaft 11. At this point, the entire automatic roll changing process is completed.

[0036] like Figure 1 As shown, the winding turret mechanism 10 of this embodiment also includes a power unit 13 and a turntable 14; the power unit 13 is used to drive the turntable 14 to rotate; the turntable 14 is provided with two slip shafts 11, and the two slip shafts 11 are arranged outside the rotation center circumference of the turntable 14.

[0037] After adopting this setting, as long as the power unit 13 drives the turntable 14 to rotate, the two slip shafts 11 on the turntable 14 will be able to perform synchronous circumferential rotation, so that the two slip shafts 11 can be swapped in position, ensuring that after the diaphragm 50 on one slip shaft 11 is wound up, the other slip shaft 11 can be used to continue winding up the diaphragm 50, so as to achieve efficient and continuous winding of the diaphragm 50.

[0038] like Figure 1 As shown, in this embodiment, guide rollers 15 are further provided on the turntable 14 , and in the circumferential direction around the rotation center of the turntable 14 , the guide rollers 15 and the slip shafts 11 are alternately arranged.

[0039] After adopting this arrangement, the guide roller 15 can apply tension to the diaphragm 50 to ensure that the diaphragm 50 will not become loose and fall off during the rotation of the turntable 14 .

[0040] like Figure 1 and Figure 2 As shown, in this embodiment, one end of the differential shaft buckle plate 21 is provided for rotational installation at the position to be installed, and the other end opposite to the differential shaft buckle plate 21 is provided with a snap-fitting recess 211, and the snap-fitting recess 211 is used to snap-fit ​​to the outside of the differential shaft 11; the positioning mechanism 20 also includes a positioning cylinder 22, and the telescopic rod of the positioning cylinder 22 is hinged to the differential shaft buckle plate 21, and the hinged position of the two is adjacent to the end of the differential shaft buckle plate 21 for rotational installation.

[0041] After adopting this setting method, once the telescopic rod of the positioning cylinder 22 is extended, the differential shaft buckle plate 21 can be moved to the differential shaft fixed position 12, and the buckling recess 211 will be sleeved on the outside of the differential shaft 11, and the differential shaft 11 will be fixed at the differential shaft fixed position 12 and cannot move, thereby facilitating the winding operation of the diaphragm 50 at the differential shaft fixed position 12.

[0042] Once the telescopic rod of the positioning cylinder 22 is retracted, the differential shaft buckle plate 21 will move away from the differential shaft 11 to release the fixation of the differential shaft 11 , thereby facilitating the position swap operation between the two differential shafts 11 .

[0043] Further, from Figure 2It can be seen that the positioning mechanism 20 is also provided with a locking cylinder 23, and the telescopic end of the locking cylinder 23 is arc-shaped. When the locking cylinder 23 controls its telescopic end to extend, its telescopic end can use the arc-shaped structure to abut against the slip shaft 11, thereby realizing the position locking of the slip shaft 11 without hindering the rotation of the slip shaft 11.

[0044] Therefore, after adopting the above-mentioned setting method, if you want to control the differential shaft buckle plate 21 to disengage from the differential shaft 11, you need to lock the cylinder 23 to retract its telescopic end to achieve the disengagement of the differential shaft buckle plate 21 from the differential shaft 11; similarly, after the differential shaft buckle plate 21 is buckled with the differential shaft 11, the locking cylinder 23 should also be controlled to extend its telescopic end to ensure that the differential shaft 11 is locked.

[0045] like Figure 1 , Figure 3 and Figure 4 As shown, the approach mechanism 30 of this embodiment also includes a base 32, and an approach swing arm 33 and an approach cylinder 34 arranged on the base 32; one end of the approach swing arm 33 is rotatably mounted on the base 32, and the other opposite end of the approach swing arm 33 is provided with an approach roller 31; the telescopic rod of the approach cylinder 34 is hinged to the approach swing arm 33, and the hinged position of the two is adjacent to the end of the approach swing arm 33 for rotatable installation.

[0046] After adopting this setting method, once the telescopic rod of the approach cylinder 34 is extended, the approach swing arm 33 will drive the approach roller 31 to move away from the slip shaft 11; and once the telescopic rod of the approach cylinder 34 is retracted, the approach swing arm 33 will drive the approach roller 31 to move toward the slip shaft 11, thereby realizing the relative position control between the approach roller 31 and the slip shaft 11.

[0047] like Figure 1 and Figure 4 As shown, in this embodiment, the approach mechanism 30 further includes a translation unit 35 , and the translation unit 35 is used to drive the approach mechanism 30 to move toward and away from the winding turret mechanism 10 .

[0048] After adopting this configuration, the translation unit 35 can control the overall movement of the approach mechanism 30 , thereby making the position control method of the approach mechanism 30 and the winding turret mechanism 10 more diversified.

[0049] like Figure 1 and Figure 4 As shown, in this embodiment, the translation unit 35 includes a translation motor 351, a translation transmission wheel 352 and a translation rack 353; the translation motor 351 is used to drive the translation transmission wheel 352 to rotate; the translation transmission wheel 352 is meshed with the translation rack 353 for transmission; the translation rack 353 is arranged at the bottom of the base 32.

[0050] After adopting this setting method, the translation motor 351 can control the translation transmission wheel 352 to rotate clockwise or counterclockwise. For example, when the translation transmission wheel 352 is controlled to rotate clockwise, the approach mechanism 30 can be driven to move toward the winding turret mechanism 10. If the translation transmission wheel 352 is controlled to rotate counterclockwise, the approach mechanism 30 can be driven to move away from the winding turret mechanism 10.

[0051] like Figure 1 and Figure 5 As shown, the hot melt mechanism 40 of this embodiment also includes a guide rail 42, a slider 43 and a cutting drive motor 44; the slider 43 is slidably mounted on the guide rail 42; the slider 43 is provided with a hot fuse 41; the cutting drive motor 44 is used to drive the slider 43 to move.

[0052] After adopting this setting, the cutting drive motor 44 can apply thrust and pull to the slider 43, so that the slider 43 can drive the thermal fuse 41 to move along the setting track of the guide rail, thereby meeting the demand for movement control of the thermal fuse 41.

[0053] like Figure 1 As shown, the automatic roll changing device of this embodiment further includes an electrostatic eliminator 60 , and the electrostatic eliminator 60 is arranged at a position adjacent to the slip shaft fixing position 12 .

[0054] After adopting this configuration, the static eliminator 60 can be used to perform static elimination operations, thereby preventing a large amount of static electricity from appearing in the processing environment and affecting the normal and stable operation of the work.

[0055] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An automatic roll changing device for lithium battery separator slitting equipment, characterized in that: It includes a winding turret mechanism, a positioning mechanism, an approach mechanism and a hot-melt mechanism; The winding turret mechanism comprises two parallel arranged slip shafts, the winding turret mechanism is used to control the circumferential rotation of the two slip shafts to exchange positions, and slip shaft fixing positions are provided on the circumferential rotation tracks of the two slip shafts; The positioning mechanism comprises a differential shaft buckle plate, the positioning mechanism is used to control the differential shaft buckle plate to move toward and away from the differential shaft fixed position, and the differential shaft buckle plate is used to support and fix the differential shaft on the differential shaft fixed position; The approach mechanism comprises an approach roller, and the approach mechanism is used to control the approach roller to press toward or move away from the slip shaft placed in the fixed position of the slip shaft; The hot melt mechanism includes a hot fuse, and the hot melt mechanism is used to control the hot fuse to perform a diaphragm cutting operation between the two slip shafts.

2. The automatic roll changing device according to claim 1, characterized in that: The winding turret mechanism also includes a power unit and a turntable; The power unit is used to drive the turntable to rotate; The rotating disk is provided with two slip shafts, and the two slip shafts are arranged outside the circumference of the rotation center of the rotating disk.

3. The automatic roll changing device according to claim 2, characterized in that: The turntable is also provided with guide rollers, and the guide rollers and the slip shafts are arranged alternately in the circumferential direction around the rotation center of the turntable.

4. The automatic roll changing device according to claim 1, characterized in that: One end of the differential shaft buckle plate is used for rotational installation at the to-be-installed position, and the other end of the differential shaft buckle plate opposite thereto is provided with a buckling recess, and the buckling recess is used for buckling with the outside of the differential shaft; The positioning mechanism further comprises a positioning cylinder, a telescopic rod of the positioning cylinder is hinged to the differential shaft buckle plate, and the hinged position of the two is adjacent to the end of the differential shaft buckle plate for rotational installation.

5. The automatic roll changing device according to claim 1, characterized in that: The approach mechanism also includes a base, and an approach swing arm and an approach cylinder arranged on the base; One end of the approach swing arm is rotatably mounted on the base, and the other opposite end of the approach swing arm is provided with the approach roller; The telescopic rod of the approach cylinder is hinged to the approach swing arm, and the hinged position of the two is adjacent to the end of the approach swing arm for rotation installation.

6. The automatic roll changing device according to claim 5, characterized in that: The approach mechanism further comprises a translation unit, and the translation unit is used to drive the approach mechanism to move toward and away from the winding turret mechanism.

7. The automatic roll changing device according to claim 6, characterized in that: The translation unit includes a translation motor, a translation transmission wheel, and a translation rack; The translation motor is used to drive the translation transmission wheel to rotate; The translation transmission wheel is meshed with the translation rack for transmission; The translation rack is arranged at the bottom of the base.

8. The automatic roll changing device according to claim 1, characterized in that: The hot melt mechanism also includes a guide rail, a slider and a cutting drive motor; The slide block is slidably mounted on the guide rail; The thermal fuse is arranged on the slider; The cutting drive motor is used to drive the slider to move.

9. The automatic roll changing device according to claim 1, characterized in that: The automatic roll changing device further comprises an electrostatic eliminator, which is arranged at a position adjacent to the fixed position of the slip shaft.

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