Electrolytic copper foil warping degree measuring device

Abstract

The invention discloses an electrolytic copper foil warping degree measuring device, and relates to the technical field of electrolytic copper foil inspection, the electrolytic copper foil warping degree measuring device comprises a case, a copper foil conveying device is arranged in the case, and the copper foil conveying device is used for conveying copper foil; the supporting table is arranged below the copper foil; a lifting detection table is further installed in the supporting table. The lifting detection table is used for being matched with the cutting device to cut the copper foil; the cutting device is arranged above the supporting table; the laser measuring device is fixedly arranged on the copper foil conveying device and is used for measuring the warping degree of the copper foil in a traction state; the cutting device comprises a cutter assembly and a driving assembly; the laser measuring device is matched with the lifting detection table to measure the warping degree of the copper foil, the lifting detection table cuts out the copper foil part through the cutting-off device, the copper foil cannot be broken through cutting out, and the integrity and the warping degree of the original copper foil cannot be damaged; the step of reinstalling the copper foil is omitted, and the detection continuity is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrolytic copper foil inspection, in particular to an electrolytic copper foil warping degree measuring device. BACKGROUND

[0002] At present, with the trend of new energy product development of electric vehicles, the electrolytic copper foil, which is indispensable in the manufacture of new energy products lithium battery, has been widely used, and the quality of the electrolytic copper foil has also been more strictly required. In the quality detection of electrode copper foil, the warping degree of the electrolytic copper foil is one of the important indicators to be considered. If the flatness of the electrolytic copper foil does not meet the requirements, it will seriously affect the qualified rate of the finished lithium battery, and then cause a large number of negative pole pieces to be unable to meet the production needs of the automatic winding equipment, which will eventually seriously affect the production efficiency and product qualified rate of the lithium battery, and cause cost waste.

[0003] At present, the equipment for detecting the warping degree of the electrolytic copper foil is mostly measured continuously in the process of copper foil conveying, which cannot accurately reflect the real warping degree of the electrolytic copper foil in the static state. If the copper foil in conveying needs to be cut and measured, it will often affect the conveying of the electrolytic copper foil, and the copper foil needs to be arranged manually before it can be conveyed again, which is complicated and low in working efficiency. SUMMARY

[0004] The purpose of the present application is to provide an electrolytic copper foil warping degree measuring device to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the present application provides the following scheme: the present application provides an electrolytic copper foil warping degree measuring device, which comprises:

[0006] A machine case is provided with a copper foil conveying device inside, and the copper foil conveying device is used for conveying copper foil;

[0007] A support table is arranged below the copper foil, and a lifting detection table is further installed in the support table; the lifting detection table is used in cooperation with a cutting device to cut the copper foil;

[0008] The cutting device is arranged above the support table;

[0009] A laser measuring device is fixedly arranged on the copper foil conveying device and is used for measuring the warping degree of the copper foil in the traction state;

[0010] The cutting device comprises a cutter assembly and a driving assembly, the driving assembly comprises a first electric push rod, one end of a connecting chain is fixedly connected to an output end of the first electric push rod; the other end of the connecting chain is fixedly installed on the adjusting part; the adjusting part is arranged on one side of a mounting rack, the cutter assembly is arranged on the other side of the mounting rack, a vertical movable groove is formed in the mounting rack, and a connecting rod is slidably arranged in the movable groove; the adjusting part and the cutter assembly are connected through the connecting rod; the first electric push rod is fixedly installed on a top surface of the mounting rack.

[0011] The control box is arranged at the bottom of the support table and is electrically connected with the copper foil conveying device, the lifting detection table, the laser measuring device and the first electric push rod.

[0012] The copper foil conveying device comprises a first motor, and a pay-off roller is fixedly installed at an output end of the first motor; the pay-off roller is used for paying out the electrolytic copper foil; the electrolytic copper foil is conveyed to a take-up roller after passing through two reversing rollers; the take-up roller is fixedly installed at an output end of a second motor; and the control box is used for controlling start and stop of the first motor and the second motor.

[0013] The support table is arranged between the two reversing rollers.

[0014] The laser measuring device is arranged between the two reversing rollers; the laser measuring device comprises a ring-shaped frame and a pair of emitting and receiving image displacement sensors arranged on both sides of the ring-shaped frame.

[0015] The control box is used for receiving measurement information of the pair of emitting and receiving image displacement sensors and comparing the measurement information with measurement information of the lifting detection table.

[0016] A square recess is formed in the middle of the support table, the square recess is used for accommodating the lifting detection table, a support frame is fixedly installed on a bottom surface of the support table, and the control box is arranged at the bottom of the support frame.

[0017] The lifting detection table comprises a second electric push rod and a detection table arranged at a movable end of the second electric push rod, and a plurality of detection probes are further fixedly installed in the support frame.

[0018] An accommodation groove is formed in a top surface of the square recess and a top surface of the detection table, a cutter groove is reserved between a side wall of the square recess and the detection table, and a displacement distance measuring device is further fixedly installed at the bottom of the cutter groove.

[0019] A fan is further arranged on one side of the support frame.

[0020] The adjusting part comprises a square sleeve fixedly installed on the side wall of the mounting frame and away from the connecting chain; one end of a sliding rod is slidably installed in the square sleeve through an elastic rope; the other end of the sliding rod extends out of the square sleeve and is rotatably connected to one end of a first hinged rod through a hinge shaft; the other end of the first hinged rod is rotatably connected to one end of a second hinged rod through a hinge shaft; a limiting groove is formed in the second hinged rod, and one end of the connecting rod is limited in the limiting groove; the other end of the second hinged rod is fixedly installed with a limiting column and a connecting ring; the second hinged rod is hingedly connected to the connecting chain through the connecting ring; the limiting column is arranged in the arc-shaped groove; the first hinged rod and the second hinged rod are further connected through an elastic reset member.

[0021] The side wall of the mounting frame is further provided with a steering groove; the connecting chain extends into the steering groove and is steered through a plurality of steering wheels.

[0022] The cutter assembly comprises a connecting block fixedly installed on the connecting rod, a cutter rod fixedly installed at the bottom end of the connecting block, and an annular cutter fixedly installed at the bottom end of the cutter rod; a flattening frame is further formed on the outer side of the annular cutter.

[0023] The application discloses the following technical effects: the laser measuring device cooperates with the lifting detection table to realize the warping degree measurement of the copper foil; the lifting detection table realizes the partial cutting of the copper foil through the cutting device; the cutting does not cause the copper foil to be broken, and the integrity and warping degree of the original copper foil are not damaged; the step of re-installing the copper foil is saved, and the continuity of detection is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 It is a schematic diagram of the cutting device structure of the present application;

[0027] Figure 3 It is Figure 1 A structure enlarged view of A;

[0028] The components include: 1. Chassis; 11. First motor; 12. Unwinding roller; 13. Reversing roller; 14. Rewinding roller; 15. Second motor; 2. Support platform; 21. Support frame; 3. Lifting detection platform; 31. Second electric push rod; 32. Detection platform; 33. Detection probe; 34. Clearance groove; 35. Cutting groove; 36. Displacement measuring device; 37. Fan; 4. Laser measuring device; 5. First electric push rod; 51. Connecting chain; 52. Square sleeve; 53. Elastic rope; 54. Sliding rod; 55. First hinge rod; 56. Second hinge rod; 57. Limiting post; 58. Connecting ring; 59. Arc groove; 6. Mounting frame; 61. Connecting rod; 62. Steering groove; 63. Steering wheel; 64. Connecting block; 65. Cutting bar; 66. Circular cutter; 67. Flattening frame; 7. Control box; 8. Elastic reset component. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] This invention provides a device for measuring the warpage of electrolytic copper foil, comprising:

[0032] Chassis 1, a copper foil conveying device is installed inside chassis 1, the copper foil conveying device is used to convey copper foil;

[0033] Support platform 2 is located below the copper foil; lifting detection platform 3 is also installed inside support platform 2; lifting detection platform 3 is used to cooperate with cutting device to cut copper foil;

[0034] The cutting device is located above the support platform 2;

[0035] Laser measuring device 4, which is fixedly installed on the copper foil conveying device, is used to measure the warpage of the copper foil under traction conditions;

[0036] The cutting device comprises a cutter assembly and a driving assembly, the driving assembly comprises a first electric push rod 5, one end of a connecting chain 51 is fixedly connected to an output end of the first electric push rod 5; the other end of the connecting chain 51 is fixedly installed on an adjusting part; the adjusting part is arranged on one side of a mounting frame 6, the cutter assembly is arranged on the other side of the mounting frame 6, a vertical movable groove is formed in the mounting frame 6, and a connecting rod 61 is slidably arranged in the movable groove; the adjusting part is connected with the cutter assembly through the connecting rod 61; the first electric push rod 5 is fixedly installed on the top surface of the mounting frame 6.

[0037] The control box 7 is arranged at the bottom of the support table 2 and is electrically connected with the copper foil conveying device, the lifting detection table 3, the laser measuring device 4 and the first electric push rod 5 respectively.

[0038] The copper foil conveying device comprises a first motor 11, and a pay-off roller 12 is fixedly installed at the output end of the first motor 11; the pay-off roller 12 is used for paying out electrolytic copper foil, the electrolytic copper foil is conveyed to a winding roller 14 after passing through two reversing rollers 13; the winding roller 14 is fixedly installed at the output end of a second motor 15; the control box 7 is used for controlling the start and stop of the first motor 11 and the second motor 15.

[0039] The support table 2 is arranged between the two reversing rollers 13.

[0040] The laser measuring device 4 is arranged between the two reversing rollers 13; the laser measuring device comprises a ring-shaped frame and a pair of emitting and receiving image displacement sensors arranged on both sides of the ring-shaped frame.

[0041] The control box 7 is used for receiving the measurement information of the emitting and receiving image displacement sensors and comparing the measurement information with the measurement information of the lifting detection table 3.

[0042] A square recess is formed in the middle of the support table 2, the square recess is used for accommodating the lifting detection table 3, a support frame 21 is fixedly installed on the bottom surface of the support table 2, and the control box 7 is arranged at the bottom of the support frame 21.

[0043] The lifting detection table 3 comprises a second electric push rod 31 and a detection table 32 arranged at the movable end of the second electric push rod 31; a plurality of detection probes 33 are also fixedly installed in the support frame 21.

[0044] The top surface of the square recess and the top surface of the detection table 32 are both provided with a displacement slot 34; a cutter slot 35 is reserved between the side wall of the square recess and the detection table 32; and a displacement distance meter 36 is also fixedly installed at the bottom of the cutter slot 35.

[0045] A fan 37 is also arranged on one side of the support frame 21.

[0046] The adjusting part includes a square sleeve 52, which is fixedly installed on the side wall of the mounting frame 6 and located away from the connecting chain 51. One end of a sliding rod 54 is slidably installed inside the square sleeve 52 via an elastic rope 53. The other end of the sliding rod 54 extends out of the square sleeve 52 and is rotatably connected to one end of a first hinge rod 55 via a hinge shaft. The other end of the first hinge rod 55 is rotatably connected to one end of a second hinge rod 56 via a hinge shaft. A limiting groove is formed inside the second hinge rod 56, and one end of a connecting rod 61 is limited within the limiting groove. A limiting post 57 and a connecting ring 58 are fixedly installed at the other end of the second hinge rod 56. The second hinge rod 56 is hinged to the connecting chain 51 via the connecting ring 58. The limiting post 57 is located in an arc-shaped groove 59. The first hinge rod 55 and the second hinge rod 56 are also connected by an elastic reset member 8.

[0047] The mounting bracket 6 also has a steering groove 62 on its side wall; the connecting chain 51 extends into the steering groove 62 and is steered by a number of steering wheels 63.

[0048] The cutter assembly includes a connecting block 64 fixedly mounted on a connecting rod 61, a cutter bar 65 fixedly mounted at the bottom of the connecting block 64, and an annular cutter 66 fixedly mounted at the bottom of the cutter bar 65; a flattening frame 67 is also formed on the outer side of the annular cutter 66.

[0049] In one embodiment of the present invention, the copper foil continuously moves from the unwinding roller 12 to the winding roller 14. During the movement, the laser measuring device 4 measures the warpage of the copper foil being transported. If the data of the copper foil being transported does not match that of the stationary copper foil, the copper foil on the support platform 2 is cut by pressing down on the cutting assembly. During the pressing down of the annular cutter 66, the control box 7 controls the first motor 11 and the second motor 15 to stop rotating, so that the copper foil is stationary on the support platform 2. During the cutting process, the annular cutter 66 passes through the clearance groove 34 and enters the cutting groove 35 to achieve partial cutting of the copper foil. After the switching is completed, the annular cutter 66 exits. At this time, the control box 7 controls the first motor 11 and the second motor 15 to continue rotating, which does not affect the continuous movement of the electrolytic copper foil, saves the step of reinstalling the copper foil, and improves the continuity of detection.

[0050] In one embodiment of the present invention, during the cutting process of the annular cutter 66, the flattening frame 67 on the outer side of the annular cutter 66 will press down the copper foil on the periphery of the detection table 32, so as not to damage the integrity and warpage of the original copper foil.

[0051] In one embodiment of the present invention, the cut copper foil is lowered by the second electric push rod 31 to the detection probe 33 to measure the flatness of the copper foil; a needle-shaped or circular probe is used to scan the surface of the copper foil plate, and then the surface height difference is measured by the probe; the probe inputs the measured data into the control box 7 and compares it with the standard data of the copper foil in the static state to measure whether the warpage of the copper foil is qualified.

[0052] In one embodiment of the present invention, the displacement rangefinder 36 is used to provide feedback on the distance between the bottom end of the annular cutter 66 and the bottom of the cutter groove 35. When the distance between the bottom end of the annular cutter 66 and the bottom of the cutter groove 35 is too close or when it is a safe distance, the control box 7 controls the first electric push rod 5 to stop moving and controls the annular cutter 66 to rise.

[0053] In one embodiment of the present invention, after the annular cutter 66 extends into the cutter groove 35, the second electric push rod 31 will simultaneously drive the detection stage 32 to descend, so as to prevent the annular cutter 66 from squeezing the copper foil and damaging its original state.

[0054] In one embodiment of the present invention, under normal conditions, the annular cutter 66 is positioned at its highest position, and the connecting rod 61 in the movable groove is positioned at the top of the movable groove; at this time, the elastic reset member 8 is in a non-stretched state; the elastic rope 53 is in a taut state; when the annular cutter 66 needs to be pressed down, the first electric push rod 5 is pulled back, driving the connecting chain to rise and extend from the turning groove 62; at this time, the limiting post 57 is driven to rotate along the arc groove 59, and the second hinge rod 56 is stretched, the angle of the limiting groove in the second hinge rod 56 changes, driving the connecting rod 61 to move downward; the second hinge rod 56 drives the first hinge rod 55 to move through the tension of the hinge shaft and the elastic reset member 8. During this process, the elastic rope 53 is first stretched and then retracted, realizing the tension and engagement of the elastic reset member 8, and finally realizing the pressing down of the annular cutter 66.

[0055] In one embodiment of the present invention, a protective box is also provided on the mounting bracket 6, and the protective box covers the first electric push rod 5 and the steering groove 62.

[0056] In one embodiment of the invention, a fan 37 is used to remove the measured copper foil from the testing station 32.

[0057] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. The embodiments described above are merely preferred embodiments of the invention and are not intended to limit the scope of the invention. Various modifications and improvements made to the technical solutions of this invention by those skilled in the art without departing from the spirit of the invention should fall within the protection scope defined by the claims of this invention.

Claims

1. An electrolytic copper foil warpage measuring device characterized by comprising: The utility model relates to a copper foil cutting device, including: A cabinet (1) is internally provided with copper foil conveying devices for conveying copper foil; Supporting table (2) is arranged below the copper foil, and the lifting detection table (3) is further installed in the supporting table (2), which is used for cooperating with the cutting device to cut the copper foil; The cutting device is arranged above the supporting table (2); The laser measuring device (4) is fixedly arranged on the copper foil conveying device and is used for measuring the warping degree of the copper foil in the traction state; The cutting device includes a cutter assembly and a driving assembly, the driving assembly includes a first electric push rod (5), one end of a connecting chain (51) is fixedly connected to the output end of the first electric push rod (5), the other end of the connecting chain (51) is fixedly installed on the adjusting part, the adjusting part is arranged on one side of the mounting bracket (6), the cutter assembly is arranged on the other side of the mounting bracket (6), a vertical movable slot is formed in the mounting bracket (6), a connecting rod (61) is slidably arranged in the movable slot, the adjusting part and the cutter assembly are connected through the connecting rod (61), and the first electric push rod (5) is fixedly installed on the top surface of the mounting bracket (6); Further including a control box (7) arranged at the bottom of the supporting table (2) and electrically connected with the copper foil conveying device, the lifting detection table (3), the laser measuring device (4) and the first electric push rod (5) respectively.

2. The device for measuring the warpage of an electrolytic copper foil according to claim 1, characterized by: The copper foil conveying device includes a first motor (11), a pay-off roller (12) is fixedly installed on the output end of the first motor (11), the electrolytic copper foil is paid off through the pay-off roller (12), conveyed to a winding roller (14) after passing through two reversing rollers (13), the winding roller (14) is fixedly installed on the output end of a second motor (15), and the control box (7) is used for controlling the start and stop of the first motor (11) and the second motor (15); The supporting table (2) is arranged between the two reversing rollers (13).

3. The device for measuring the warpage of an electrolytic copper foil according to claim 2, characterized in that: The laser measuring device (4) is arranged between the two reversing rollers (13), and the laser measuring device includes a ring-shaped frame and a pair of image displacement sensors arranged on both sides of the ring-shaped frame; The control box (7) is used for receiving the measurement information of the pair of image displacement sensors and comparing the measurement information with that of the lifting detection table (3).

4. The device for measuring the warpage of an electrolytic copper foil according to claim 1, characterized by: A square groove is formed in the middle of the supporting table (2), the square groove is used for accommodating the lifting detection table (3), a supporting frame (21) is fixedly installed on the bottom surface of the supporting table (2), and the control box (7) is arranged at the bottom of the supporting frame (21); The lifting detection table (3) includes a second electric push rod (31) and a detection table (32) arranged on the movable end of the second electric push rod (31), and a plurality of detection probes (33) are further fixedly installed in the supporting frame (21).

5. The device for measuring the warpage of an electrolytic copper foil according to claim 4, characterized in that: The top surface of the square groove and the top surface of the detection table (32) are both provided with a displacement slot (34); the side wall of the square groove and the detection table (32) are reserved with a cutter slot (35); the bottom of the cutter slot (35) is further fixedly installed with a displacement distance measurer (36).

6. The electrolytic copper foil warpage measuring apparatus according to claim 5, wherein: The support frame (21) is further provided with a fan (37) on one side.

7. The device for measuring the warpage of an electrolytic copper foil according to claim 1, characterized by: The adjusting part comprises a square sleeve (52) which is fixedly installed on the side wall of the mounting frame (6) and is arranged away from the connecting chain (51); one end of a sliding rod (54) is slidably installed in the square sleeve (52) through an elastic rope (53); the other end of the sliding rod (54) is arranged outside the square sleeve (52) and is rotatably connected with one end of a first hinged rod (55) through a hinge shaft, and the other end of the first hinged rod (55) is rotatably connected with one end of a second hinged rod (56) through a hinge shaft; a limiting slot is formed in the second hinged rod (56), and one end of the connecting rod (61) is limited in the limiting slot; the other end of the second hinged rod (56) is fixedly installed with a limiting column (57) and a connecting ring (58); the second hinged rod (56) is hinged with the connecting chain (51) through the connecting ring (58); the limiting column (57) is arranged in an arc-shaped slot (59); the first hinged rod (55) and the second hinged rod (56) are further connected through an elastic reset member (8).

8. The device for measuring the warpage of an electrolytic copper foil according to claim 7, characterized by: The side wall of the mounting frame (6) is further provided with a steering slot (62); the connecting chain (51) is arranged in the steering slot (62) and is steered through a plurality of steering wheels (63).

9. The electrolytic copper foil warpage measuring apparatus according to claim 7, characterized by: The cutter assembly comprises a connecting block (64) fixedly installed on the connecting rod (61), a cutter rod (65) fixedly installed at the bottom end of the connecting block (64), and an annular cutter (66) fixedly installed at the bottom end of the cutter rod (65); a flattening frame (67) is further formed outside the annular cutter (66).

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