CN108020514B - Copper foil surface color difference detection and restoration device - Google Patents
Copper foil surface color difference detection and restoration device Download PDFInfo
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- CN108020514B CN108020514B CN201810047456.1A CN201810047456A CN108020514B CN 108020514 B CN108020514 B CN 108020514B CN 201810047456 A CN201810047456 A CN 201810047456A CN 108020514 B CN108020514 B CN 108020514B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
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Abstract
The invention discloses a copper foil surface color difference detection and repair device; belongs to the technical field of copper foil production equipment; it comprises the following steps: the device comprises an unreeling roller (1), a first pre-storing device (8), detection equipment, repairing equipment, a second pre-storing device (9) and a reeling roller (2); the detection apparatus includes: at least 1 photoelectric color measuring sensor (3); the repair device includes: the device comprises a controller, an acid washing mechanism (4), a water washing mechanism (5) and a dryer (6), wherein the photoelectric color measurement sensor (3) is connected with the controller; the invention aims to provide a copper foil surface color difference detection and restoration device which is convenient to use and good in effect; for treating the color difference problem of the copper foil.
Description
Technical Field
The invention relates to a surface detection and correction device for a copper foil finished product, in particular to a copper foil surface color difference detection and correction device.
Background
Copper foil surface treatment is an important part of the production process. In the actual production process, as described in CN102418129a, the surface treatment of the copper foil is subjected to the procedures of acid washing, roughening, curing, blackening, galvanizing, passivation, silane treatment, etc., however, the complex process still cannot completely eliminate the phenomena of poor color, such as oxidation of the foil surface, the original foil is severely oxidized or the surface treatment machine guide shaft is affected by dirt, and the probability of oxidation of the finished product is quite high, so that in the copper foil production process, the random factors causing oxidation of the copper foil can cause the occurrence of unfixed states of oxidation traces of the copper foil, operators are not easy to find problems, and the local copper foil on the oxidized surface can be rolled into the rolled copper foil, thereby causing potential hidden trouble to customers.
The double-sided light ultrathin lithium electric copper foil has extremely high requirements on the color of the surface of the double-sided light ultrathin lithium electric copper foil during production and application, and the requirements cannot be met by manual observation. There are also some automated copper foil surface inspection equipment in the prior art. A CCD camera is adopted by CN202916214U to detect pinholes and penetration points of the copper foil; in another example, CN203203939U adopts 2 CCD cameras to detect the light transmission point of the copper foil; another example is CN107367465a, which gives a mathematical principle for a copper foil oxidation detection method. The above-mentioned several detection apparatuses and methods are essentially those for detecting defective copper foil, and the treatment is basically still performed by slitting, that is, by "unreeling-reeling", and the treatment is performed again by "unreeling-reeling" (slitting).
In summary, the prior art lacks a device for detecting and repairing the surface color difference of the copper foil, especially the double-sided light ultrathin lithium battery copper foil. Therefore, the handling of the color difference problem is a problem to be solved urgently for copper foil production enterprises.
Disclosure of Invention
The invention aims to provide the copper foil surface color difference detection and restoration device which is convenient to use and good in effect, aiming at the defects of the prior art.
The technical scheme of the invention is realized as follows: a copper foil surface color difference detection and repair device comprises: the device comprises an unreeling roller (1), a first pre-storing device (8), detection equipment, repairing equipment, a second pre-storing device (9) and a reeling roller (2);
the detection apparatus includes: at least 1 photoelectric color measuring sensor (3); preferably, 3 photoelectric color measuring sensors (3) are adopted, so that the full width of the copper foil can be covered;
the repair device includes: the device comprises a controller, an acid washing mechanism (4), a water washing mechanism (5) and a dryer (6), wherein the photoelectric color measuring sensor (3) is connected with the controller.
Further, the photoelectric color measuring sensor of the detection device is a CCD camera, and the 3 CCD cameras are vertically arranged in the advancing direction of the copper foil and are arranged right above the copper foil.
Further, the pickling mechanism (4) includes: the pickling machine comprises a pickling rack, a pickling first guide roller (4-1), a pickling lifting guide roller (4-2), a pickling third guide roller (4-3) and a pickling fourth drive roller (4-4), wherein the pickling rack is provided with a pickling tank (4-8), the pickling tank is arranged below the pickling lifting guide roller (4-2), and a dilute sulfuric acid solution is arranged in the pickling tank; the first guide roller for pickling is arranged on one side of the pickling tank, the third guide roller for pickling and the fourth drive roller for pickling are arranged on the other side of the pickling tank, the lifting guide roller for pickling (4-2) is a lifting guide roller, and the copper foil is arranged below the lifting guide roller for pickling (4-2).
Further, a first hydraulic telescopic rod (4-5) is arranged at the top of the pickling rack, a fixed part of the first hydraulic telescopic rod is fixed on the pickling rack, a movable rod part of the first hydraulic telescopic rod is connected with a first rotating shaft support bracket (4-7), and connecting parts matched with rotating shafts of pickling lifting guide rollers (4-2) are arranged at two ends of the first rotating shaft support bracket (4-7); the first hydraulic telescopic rod (4-5) is connected with the controller.
Further, a limiting part (4-6) is arranged on the vertical rod of the pickling rack, a sliding groove is arranged at the connecting part of the first rotating shaft support bracket (4-7), the limiting part (4-6) is inserted into the connecting part of the first rotating shaft support bracket, and the connecting part of the first rotating shaft support bracket (4-7) can only slide up and down along the limiting part.
Further, the washing mechanism (5) includes: the washing machine comprises a washing machine frame, a washing first guide roller (5-1), a washing second guide roller (5-2), a washing third guide roller (5-3) and a washing fourth drive roller (5-4), wherein the washing machine frame is provided with a washing tank which is arranged below the washing second guide roller (5-2), and clear water is arranged in the washing tank; the first water-washing guide roller is arranged on one side of the water-washing groove, the third water-washing guide roller and the fourth water-washing drive roller are arranged on the other side of the water-washing groove, the second water-washing guide roller (5-2) is a lifting guide roller, and the copper foil is arranged below the second water-washing guide roller (5-2); the washing machine frame is provided with a second hydraulic telescopic rod, the fixed part of the second hydraulic telescopic rod is fixed on the washing machine frame, the movable rod part of the second hydraulic telescopic rod is connected with a second rotating shaft supporting bracket, and two ends of the second rotating shaft supporting bracket are provided with connecting parts matched with rotating shafts of the second washing guide rollers; be provided with spacing portion on the vertical pole of washing frame, the connecting portion of second pivot support frame is provided with the spout, and spacing portion inserts in the connecting portion of second pivot support frame, and the connecting portion of second pivot support frame only can slide from top to bottom along spacing portion.
Further, the method further comprises the following steps: the first state sensor is used for sensing the length L of the first hydraulic telescopic rod and is connected with the controller.
Further, the method further comprises the following steps: the second state sensor is used for sensing the length M of the second hydraulic telescopic rod, the third state sensor is used for sensing whether the dryer is started, and the second state sensor and the third state sensor are connected with the controller.
Further, the second pre-storing means (9) comprises: a first guide roller (9-1), a second guide roller (9-2) and a third guide roller (9-3) are pre-stored, copper foil passes through the upper surface of the second guide roller (9-2), and the second guide roller (9-2) is a liftable guide roller;
further comprises: the second pre-storing device comprises a second pre-storing device frame, wherein a third hydraulic telescopic rod is arranged at the top of the second pre-storing device frame, a fixed part of the third hydraulic telescopic rod is fixed on the second pre-storing device frame, a movable rod part of the third hydraulic telescopic rod is connected with a third rotating shaft supporting bracket, and connecting parts matched with rotating shafts of pre-storing second guide rollers (9-2) are arranged at two ends of the third rotating shaft supporting bracket; the third hydraulic telescopic rod is connected with the controller;
The vertical rod of the second pre-storing device frame is provided with a limiting part, the connecting part of the third rotating shaft supporting bracket is provided with a sliding groove, the limiting part is inserted into the connecting part of the first rotating shaft supporting bracket, and the connecting part of the third rotating shaft supporting bracket can only slide up and down along the limiting part.
Further, the first pre-storing means (8) and the second pre-storing means (9) are identical in structure.
The working method of the copper foil surface color difference detection and repair device comprises the following steps of: the copper foil is discharged from the unreeling roller, sequentially passes through a first pre-storing device, a photoelectric color measuring sensor, an acid washing mechanism, a water washing mechanism, a dryer and a second pre-storing device, and is finally collected by the reeling roller;
the photoelectric color measuring sensor is used for detecting the color of the copper foil, transmitting data to the controller, and judging whether the copper foil has color difference or not in real time by the controller, wherein the photoelectric color measuring sensor is connected with the controller;
under the condition that the controller does not find that the color difference of the copper foil is larger than or equal to a preset value, the copper foil does not enter a pickling tank of a pickling mechanism for washing;
and under the condition that the controller finds that the color difference of the copper foil is larger than or equal to a preset value, the controller sends out a signal, and the copper foil sequentially enters a pickling tank of the pickling mechanism and a washing tank of the washing mechanism for washing.
Further, when copper powder needs to be treated simultaneously, the copper foil is always washed by a washing tank of a washing mechanism.
Further, the method for washing the copper foil in the pickling tank and the water washing tank comprises the following steps: the pickling lifting guide roller of the pickling mechanism and the water washing second guide roller of the water washing mechanism are arranged above the copper foil and are respectively used for pressing the copper foil into the pickling tank and the water washing tank; the positions of the pickling lifting guide roller and the washing second guide roller are controlled by a first hydraulic telescopic rod and a second hydraulic telescopic rod respectively; the lengths of the first hydraulic telescopic rod and the second hydraulic telescopic rod are controlled to realize whether the pickling lifting guide roller and the second washing guide roller press the copper foil into the pickling tank and the washing tank.
Further, the first pre-storing device and the second pre-storing device are also fallen while the pickling lifting guide roller is fallen; the first pre-storing device and the second pre-storing device are lifted at the same time when the pickling lifting guide roller is lifted.
The lifting control method of the pickling lifting guide roller comprises the steps that copper foil passes through a photoelectric color measuring sensor and then passes through a pickling mechanism, the pickling mechanism comprises the pickling lifting guide roller, and a controller controls the lifting of the pickling lifting guide roller according to the result of the photoelectric color measuring sensor; the pickling lifting guide roller realizes lifting through the expansion and contraction of the first hydraulic expansion rod;
The first state sensor is used for sensing the length L of the first hydraulic telescopic rod, and signals of the first state sensor are transmitted to the controller in real time;
setting the normal preset length of the first hydraulic telescopic rod as L0, and lifting the corresponding pickling lifting guide roller to a normal state; the preset longest length of the first hydraulic telescopic rod is set to be L1, and the corresponding pickling lifting guide roller is lowered to a use state;
the controller is internally provided with a first time module which is used for recording the time T when the first hydraulic telescopic rod reaches L1; every time the photoelectric color measurement sensor finds color difference, the T recorded in the first time module is zeroed;
determining the action of the first hydraulic telescopic rod according to the photoelectric color measuring sensor, the first state sensor and the first time module:
when the color difference of the copper foil is larger than or equal to the preset value, the copper foil is returned to 0, then the relation between L and L1 is judged, if L<L1, the controller sends out a signal,first hydraulic telescopic rod extensionThe first time module starts timing after the length of L1 is reached; if l=l1, the first hydraulic telescopic rod is not extended any more, and the first time module reckons;
when 0 is<T<At the time of the preset time T1, The first hydraulic telescopic rod is unchangedAnd the length is kept at L1;
when t=t1, the controller issuesThe signal is transmitted to the host computer via the communication network,first hydraulic telescopic rod shortening。
Further, T1 is set so as to satisfy: t1> the travelling length of the copper foil after the photoelectric color measurement sensing distance passes through the pickling tank/the travelling speed of the copper foil + the reserved safety time T2; t2 is reserved safety time, and the size of the T2 is 5-10s.
Further, the first hydraulic telescopic rod descends, and the pickling lifting guide roller stretches out TO the length L1 within the time T0 before the color difference area reaches the edge of the pickling tank, wherein TO is 5-30s;
t1 is set so as to satisfy the following conditions: t1 is greater than T0+ the time of the copper foil in the color difference area passing through the pickling tank + T2; the safety time T2 is reserved, and the size of the safety time T2 is 5-10s.
The lifting control method of the pickling lifting guide roller comprises the steps that copper foil passes through a photoelectric color measuring sensor and then passes through a pickling mechanism, the pickling mechanism comprises the pickling lifting guide roller, and a controller controls the lifting of the pickling lifting guide roller according to the result of the photoelectric color measuring sensor; the pickling lifting guide roller realizes lifting through the expansion and contraction of the first hydraulic expansion rod;
a first state sensor is arranged and used for sensing the length L of the first hydraulic telescopic rod, and the signal of the first state sensor is transmitted to the controller in real time;
The controller is internally provided with a first time module, a first storage module and a second storage and analysis module, wherein the first time module is used for recording the time T when the first hydraulic telescopic rod reaches L1; the first storage module is used for recording the time difference of the adjacent twice color difference areas, and the initial value of the time difference is 0;
the color difference area of the first-time first hydraulic telescopic rod stretching-shrinking process is called a first-segment color difference area, the color difference area of the second-time first hydraulic telescopic rod stretching-shrinking process is called a second-segment color difference area, and so on;
the second storage and analysis module is used for recording the detection time of the color difference areas, marking the first color difference area and the last color difference area of the color difference areas of different areas, and calculating the distance X of the travel distance of the initial color difference areas of the different areas from the pickling tank in real time;
wherein, X is calculated as follows: x = travel length of copper foil from photoelectric color measurement sensing distance to pickling tank- (current time-detection time) X copper foil travel speed;
the method for determining the initial and final color difference areas of the color difference areas of different areas comprises the following steps:
firstly, determining the initial and final color difference areas of a first patch color difference area, and determining the initial color difference area of the first patch color difference area when the color difference area is received for the first time; … …; in the U time of receiving the N color difference area signal, when the color difference area is not detected, marking the N color difference area as the end area of the first area;
Secondly, determining the initial and final color difference areas of the color difference area of the second sheet area, and marking the color difference area detected again after the final area of the first sheet area as the initial color difference area of the second sheet area; … …; in the U time of receiving the signal of the N color difference area of the second sheet area, when the color difference area is not detected, marking the N color difference area of the second sheet area as the end area of the second sheet area;
and determining the first and last color difference areas of the residual patch color difference areas in sequence according to the method.
When the initial color difference areas of the color difference areas of different sections travel a distance from the pickling tank X1, the first hydraulic telescopic rod starts to start, and the time of the first hydraulic telescopic rod reaching the L1 length is earlier than the time of the color difference areas reaching the pickling tank by T0 time;
after the first hydraulic telescopic rod reaches L1, the first time module T starts to count time, and when T=preset time T1+ is the time difference between the tail area and the initial area of different sections, the first hydraulic telescopic rod starts to shrink;
wherein, the size of U is set as follows: the first hydraulic telescopic rod is from the L1 state to the L0 state, and extends to the L1 state for a time of +T0+T2, wherein the value of the first hydraulic telescopic rod is 10-35s; wherein T2 is reserved safety time, and the size of the T2 is 5-10s;
Wherein, the copper foil distance between photoelectric color measurement sensor and the pickling tank satisfies: copper foil distance between photoelectric color measuring sensor and pickling tank > [ traveling speed of copper foil×traveling speed of U-copper foil× (T1-TO) ].
Further, the copper foil distance between the photoelectric color measuring sensor and the pickling tank satisfies the following conditions: the distance between the photoelectric color measuring sensor and the copper foil in the pickling tank is more than or equal to the advancing speed of the copper foil multiplied by U.
The invention has the advantages that:
(1) The scheme of 'detection-repair' for color difference post-treatment is firstly proposed; for copper foil, the color difference is not as great as copper powder, and the distribution of the copper foil is irregular (for example, the color difference can not exist in a coil), so that the copper foil can cause great waste of acid washing and long treatment time if a full restoration mode is adopted.
(2) The invention can treat the problem of copper powder while treating the problem of chromatic aberration.
(3) The invention designs a first pre-storing device and a second pre-storing device, wherein the first pre-storing device and the second pre-storing device are arranged to be matched with the pickling lifting guide roller, and the pickling lifting guide roller presses down a copper foil during pickling, so that the tension of the copper foil is overlarge and the internal tissue structure of the copper foil can be damaged if the pre-storing device is not arranged.
(4) The control of pickling lifting roller is a big main point of device rational utilization, has proposed 2 schemes: the method of example 1 (filed by another application) is mainly applicable to the case where the length of the detecting device from the pickling tank is short, and is also suitable for the method where the length of the detecting device from the pickling tank is long, but the effect is poor; the method of example 2 (also in the other application) is only applicable to the case where the detection device is long from the pickling tank.
Drawings
The invention is described in further detail below in connection with the embodiments in the drawings, but is not to be construed as limiting the invention in any way.
Fig. 1 is a schematic three-dimensional structure of the first embodiment.
Fig. 2 is a schematic three-dimensional structure of an embodiment under another view.
Fig. 3 is an enlarged schematic view of the pickling mechanism in the first embodiment.
Fig. 4 is a schematic view of the structure of the pickling lifting guide roller in the first embodiment.
Fig. 5 is a schematic view showing the structure of the pickling lifting guide roller in the first embodiment at another view angle.
Fig. 6 is a schematic structural view of a first hydraulic telescopic link in the first embodiment.
Fig. 7 is a cross-sectional view of the whole structure of the first embodiment.
Fig. 8 is a cross-sectional view of the inspection apparatus and the repair apparatus according to the first embodiment.
Fig. 9 is a schematic view showing the copper foil being pressed into the pickling tank by the pickling lifting guide roller.
Fig. 10 is a schematic three-dimensional structure of an embodiment at other viewing angles.
Fig. 11 is a schematic three-dimensional structure of the embodiment at other viewing angles.
Fig. 12 is a schematic view showing a manner of treating a copper foil color difference by lifting/lowering the acid-washing lifting/lowering guide roller according to the first embodiment.
Fig. 13 is a schematic diagram showing a copper foil color difference area processing according to the first embodiment.
Fig. 14 is a schematic view showing a processing mode of a copper foil color difference area in the second embodiment.
In the figure: the automatic washing machine comprises an unreeling roller 1, a wind-up roller 2, a photoelectric color measuring sensor 3, a pickling mechanism 4, a pickling first guide roller 4-1, a pickling lifting guide roller 4-2, a pickling third guide roller 4-3, a pickling fourth guide roller 4-4, a first hydraulic telescopic rod 4-5, a limiting part 4-6, a first rotating shaft supporting bracket 4-7, a pickling tank 4-8, a washing mechanism 5, a washing first guide roller 5-1, a washing second guide roller 5-2, a washing third guide roller 5-3, a washing fourth driving roller 5-4, a washing tank 5-5, a dryer 6, a first pre-storing device 8, a second pre-storing device 9, a pre-storing first guide roller 9-1, a pre-storing second guide roller 9-2 and a pre-storing third guide roller 9-3.
Detailed Description
In a first embodiment, referring to fig. 1 to 9, a device for detecting and repairing a surface color difference of a copper foil according to the present invention includes: the device comprises an unreeling roller (1), a first pre-storing device (8), detection equipment, repairing equipment, a second pre-storing device (9) and a reeling roller (2);
The detection apparatus includes: 3 photoelectric color measuring sensors (3);
the repair device includes: the photoelectric color measurement sensor (3), the acid washing mechanism (4), the water washing mechanism (5) and the dryer (6) are connected with the controller;
the copper foil is discharged from the unreeling roller (1), sequentially passes through the detection equipment, the acid washing mechanism (4), the water washing mechanism (5) and the dryer (6), and is finally collected by the reeling roller (2).
The photoelectric color measuring sensor of the detection equipment is a CCD camera, and 3 CCD cameras are vertically arranged in the advancing direction of the copper foil and are arranged right above the copper foil.
The pickling mechanism (4) comprises: the pickling machine comprises a pickling rack, a pickling first guide roller (4-1), a pickling lifting guide roller (4-2), a pickling third guide roller (4-3) and a pickling fourth drive roller (4-4), wherein the pickling rack is provided with a pickling tank which is arranged below the pickling lifting guide roller (4-2), and dilute sulfuric acid washing liquid is arranged in the pickling tank; the first guide roller for pickling is arranged on one side of the pickling tank, the third guide roller for pickling and the fourth drive roller for pickling are arranged on the other side of the pickling tank, the lifting guide roller for pickling (4-2) is a lifting guide roller, and the copper foil is arranged below the lifting guide roller for pickling (4-2).
The washing mechanism (5) comprises: the washing machine comprises a washing machine frame, a washing first guide roller (5-1), a washing second guide roller (5-2), a washing third guide roller (5-3) and a washing fourth drive roller (5-4), wherein the washing machine frame is provided with a washing tank which is arranged below the washing second guide roller (5-2), and clear water is arranged in the washing tank; the first water-washing guide roller is arranged on one side of the water-washing groove, the third water-washing guide roller and the fourth water-washing drive roller are arranged on the other side of the water-washing groove, the second water-washing guide roller (5-2) is a lifting guide roller, and the copper foil is arranged below the second water-washing guide roller (5-2).
The pickling machine is characterized in that the pickling machine frame is provided with a first hydraulic telescopic rod (4-5), a fixed part of the first hydraulic telescopic rod is fixed on the pickling machine frame, a movable rod part of the first hydraulic telescopic rod is connected with a first rotating shaft support bracket (4-7), and two ends of the first rotating shaft support bracket (4-7) are provided with connecting parts matched with rotating shafts of pickling lifting guide rollers (4-2); further, in order to keep the safety of the first hydraulic telescopic rod driving the pickling lifting guide roller, a limiting part (4-6) is arranged on a vertical rod of the pickling rack, a sliding groove is formed in a connecting part of the first rotating shaft support bracket (4-7), the limiting part (4-6) is inserted into the connecting part of the first rotating shaft support bracket, and the connecting part of the first rotating shaft support bracket (4-7) can only slide up and down along the limiting part.
The washing machine frame is provided with a second hydraulic telescopic rod, the fixed part of the second hydraulic telescopic rod is fixed on the washing machine frame, the movable rod part of the second hydraulic telescopic rod is connected with a second rotating shaft supporting bracket, and two ends of the second rotating shaft supporting bracket are provided with connecting parts matched with rotating shafts of the second washing guide rollers; be provided with spacing portion on the vertical pole of washing frame, the connecting portion of second pivot support frame is provided with the spout, and spacing portion inserts in the connecting portion of second pivot support frame, and the connecting portion of second pivot support frame only can slide from top to bottom along spacing portion.
Further comprises: the first state sensor is used for sensing the length L of the first hydraulic telescopic rod, the second state sensor is used for sensing the length M of the second hydraulic telescopic rod, the third state sensor is used for sensing whether the dryer is started or not, and the first state sensor, the second state sensor and the third state sensor are all connected with the controller.
The second pre-storing means (9) comprises: a first guide roller (9-1), a second guide roller (9-2) and a third guide roller (9-3) are pre-stored, copper foil passes through the upper surface of the second guide roller (9-2), and the second guide roller (9-2) is a liftable guide roller; further comprises: a second pre-storing device frame (not shown in the drawing), wherein a third hydraulic telescopic rod is arranged at the top of the second pre-storing device frame, a fixed part of the third hydraulic telescopic rod is fixed on the second pre-storing device frame, a movable rod part of the third hydraulic telescopic rod is connected with a third rotating shaft supporting bracket, and two ends of the third rotating shaft supporting bracket are provided with connecting parts matched with rotating shafts of pre-storing second guide rollers (9-2); the third hydraulic telescopic rod is connected with the controller; the vertical rod of the second pre-storing device frame is provided with a limiting part, the connecting part of the third rotating shaft supporting bracket is provided with a sliding groove, the limiting part is inserted into the connecting part of the third rotating shaft supporting bracket, and the connecting part of the third rotating shaft supporting bracket can only slide up and down along the limiting part.
Furthermore, the first pre-storing means (8) and the second pre-storing means (9) are of the same construction.
The working principle of the invention is as follows: the copper foil is detected by a photoelectric color measuring sensor, data of the photoelectric color measuring sensor is transmitted to a controller, and the controller judges whether the copper foil needs to be repaired or not; if the copper foil needs to be repaired, pressing the copper foil to be repaired into a pickling tank by a pickling lifting guide roller; meanwhile, the copper foil passing through the pickling tank is pressed into the pickling tank by the second guide roller for cleaning, then the washed copper foil is dried by a dryer, and finally the copper foil is wound; if the copper foil does not need to be repaired, the pickling lifting guide roller is not contacted with the copper foil.
It should be noted that: the washing mechanism of the invention can be adjusted according to actual production: (1) If the copper foil has undergone a post-treatment process of "copper powder" removal, the second guide roll for washing by the washing mechanism drops after the first drop of the lifting guide roll for washing by the acid, and the second guide roll for washing by the water drops until the treatment is finished, mainly because: during the lifting process of the pickling lifting guide roller, part of pickling solution is necessarily reserved and is dripped on a normal copper foil; (2) If the copper foil is not subjected to the post-treatment process of removing the copper powder, the second guide roll of the washing mechanism in the invention is always in a falling state during use.
The action of the first hydraulic telescopic rod is as follows: the photoelectric color measurement sensor and the first state sensor are determined together.
The working method of the copper foil surface color difference detection and repair device in the first embodiment is as follows:
the copper foil comprises the following steps: the copper foil is discharged from the unreeling roller, sequentially passes through a first pre-storing device, a photoelectric color measuring sensor, an acid washing mechanism, a water washing mechanism, a dryer and a second pre-storing device, and is finally collected by the reeling roller;
the photoelectric color measuring sensor is used for detecting the color of the copper foil, transmitting data to the controller, and judging whether the copper foil has color difference or not in real time by the controller, wherein the photoelectric color measuring sensor is connected with the controller;
under the condition that the controller does not find that the color difference of the copper foil is larger than or equal to a preset value, the copper foil does not enter a pickling tank of a pickling mechanism for washing;
and under the condition that the controller finds that the color difference of the copper foil is larger than or equal to a preset value, the controller sends out a signal, and the copper foil sequentially enters a pickling tank of the pickling mechanism and a washing tank of the washing mechanism for washing.
Further, when copper powder needs to be treated simultaneously, the copper foil is always washed by a washing tank of a washing mechanism.
Further, the method for washing the copper foil in the pickling tank and the water washing tank comprises the following steps:
the pickling lifting guide roller of the pickling mechanism and the water washing second guide roller of the water washing mechanism are arranged above the copper foil and are respectively used for pressing the copper foil into the pickling tank and the water washing tank;
the positions of the pickling lifting guide roller and the washing second guide roller are controlled by a first hydraulic telescopic rod and a second hydraulic telescopic rod respectively;
the lengths of the first hydraulic telescopic rod and the second hydraulic telescopic rod are controlled to realize whether the pickling lifting guide roller and the second washing guide roller press the copper foil into the pickling tank and the washing tank.
Further, the control method of the first hydraulic telescopic rod is as follows:
a first state sensor is arranged and used for sensing the length L of the first hydraulic telescopic rod, and the signal of the first state sensor is transmitted to the controller in real time;
setting the normal preset length of the first hydraulic telescopic rod as L0, and lifting the corresponding pickling lifting guide roller to a normal state; the preset longest length of the first hydraulic telescopic rod is set to be L1, and the corresponding pickling lifting guide roller is lowered to a use state;
the controller is internally provided with a first time module which is used for recording the time T when the first hydraulic telescopic rod reaches L1; every time the photoelectric color measurement sensor finds color difference, the T recorded in the first time module is zeroed;
Determining the action of the first hydraulic telescopic rod according to the photoelectric color measuring sensor, the first state sensor and the first time module:
when the color difference of the copper foil is larger than or equal to the preset value, the copper foil is returned to 0, then the relation between L and L1 is judged, if L<L1, the controller sends out a signal,first hydraulic telescopic rod extensionThe first time module starts timing after the length of L1 is reached; if l=l1, the first hydraulic telescopic rod is not extended any more, and the first time module reckons;
when 0 is<T<At the time of the preset time T1,the first hydraulic telescopic rod is unchangedAnd the length is kept at L1;
when t=t1, the controller signals,first hydraulic telescopic rod shortening。
The control method of the first hydraulic telescopic rod mainly aims at: how to handle the processing of adjacent color difference areas.
When the color difference area is found for the first time, the first hydraulic telescopic rod descends, and the pickling lifting guide roller stretches out to the length L1 in the time before the color difference area reaches the front T0 (preferably, 5-30 s) of the edge of the pickling tank;
t0=travel length of copper foil from photoelectric color measurement sensor distance to pickling tank/travel speed of copper foil-time of first hydraulic telescoping rod from predetermined stow length to L1 length; the time is mainly used for adjusting the extending speed of the first hydraulic telescopic rod, namely the extending speed cannot be too fast or too slow;
When the "color difference region" is not detected again within the T1 time after the length of the pickling lifting guide roller reaches L1, the length of the cleaning region=t1×the advancing speed of the copper foil;
when the "color difference region" is detected again within the T1 time after the length of the pickling lifting guide roller reaches L1, the pickling lifting guide roller continues to extend to the L1 length for a period of time T1, and thus, it can be seen that the control method is specific to: in the time T1, the copper foil can reach from the photoelectric color measuring sensor and pass through the pickling tank;
T1>travel length of copper foil after passing through pickling tank from photoelectric color measurement sensing distance/travel speed of copper foil + reserved safety Full time T2The method comprises the steps of carrying out a first treatment on the surface of the The safety time T2 is reserved, the size of the safety time T2 is generally 5-10s, and a certain buffer area is formed between the copper foil of the color difference area and the normal area.
When adjacent 'color difference areas' exist, when T=T1, namely after the last color difference area adjacent to the photoelectric color measuring sensor is found to meet the T1 time, at the moment, the last color difference area is found to pass through the pickling tank T2 time, and the pickling lifting guide roller is pulled up by the first hydraulic telescopic rod;
when there is no adjacent "color difference region",T1>time of copper foil passing through pickling tank in T0+ color difference area + T2 . After the photoelectric color measuring sensor finds a color difference area, the controller gives a lifting command to the first hydraulic telescopic rod after the traveling length of the copper foil from the photoelectric color measuring sensor to the pickling tank/the traveling speed of the copper foil is-T0+T1 time.
It should be noted that: in the time from the beginning of the receiving signal to the reaching of the L1 length of the first hydraulic telescopic rod, if the color difference area signal of the photoelectric color measuring sensor is received again, the effective cleaning can still be realized according to the method; the reason is that: the size of T1 is set to: after the pickling lifting guide roller falls to a preset position, the copper foil passing through the photoelectric color measuring sensor can be effectively cleaned.
In order to more reasonably describe the above control method, as shown in fig. 12, several cases are listed; a is a first observed color difference area, and according to the control method, at the moment, a first hydraulic telescopic rod drives a pickling lifting guide roller to drop, and the temperature is returned to 0; b is a second observed color difference area, which is adjacent to a (b is the color difference observed in the time from the beginning of the extension of the first hydraulic telescopic rod to the reaching of L1 length), and when b is detected by the photoelectric color measuring sensor, the pickling lifting guide roller continuously falls down to be at 0; c is a third observed color difference area, when the third observed color difference area is observed, the pickling lifting guide roller is lowered to a preset position (namely, when the first hydraulic telescopic rod stretches out to be L1 length), at the moment, the first hydraulic telescopic rod does not stretch out any more, and Tback is 0; d is a fourth observed color difference area, the distance between cd is far, and when d is observed, the pickling lifting guide roller is in a lifting state or a state of reaching a preset lifting height, and at the moment, the pickling lifting guide roller starts to fall again; e is a fifth observed color difference area, the distance between de is far, and when e is observed, the pickling lifting guide roller is in a lifting state or a state of reaching a preset lifting height, and at the moment, the pickling lifting guide roller starts to fall again;
a. b, c are a complete drop-and-raise process and d is a complete drop-and-raise process.
From the above analysis, it can be seen that: the main conception of the method is as follows: the distance between adjacent "color difference areas" is less than: the travelling length of the copper foil from the photoelectric color measurement sensing distance pickling tank/travelling speed of the copper foil-T0+T1) multiplied by the travelling speed of the copper foil (hereinafter referred to as an adjacent distance), the first hydraulic telescopic rod is kept at the length L1 until the adjacent color difference area also passes; for example, after the first color difference area is detected, the controller issues an extension command to the controller, the distance between the second color difference area and the first color difference area is smaller than the adjacent distance, the distance between the third color difference area and the second color difference area is also smaller than the adjacent distance, the distance between the fourth color difference area and the third color difference area is also smaller than the adjacent distance, and the distance between the fifth color difference area and the fourth color difference area is larger than the adjacent distance, so that after the extension signal is obtained, the first hydraulic telescopic rod keeps until the time of the fourth color difference area detection is +T1 time, and then the shortening signal (one extension and one retraction is completed) is obtained again after the fifth color difference area detection.
The main reason for the above consideration of the proximity distance is that: the chromatic aberration region tends to be formed into a sheet, and the first hydraulic telescopic rod cannot perform the shortening (raising) -extending (lowering) process in a short time, so that consideration must be given to how to cope with the adjacent chromatic aberration processing. The analysis gives the setting requirement of the technological parameters, and is a more convenient control mode.
Embodiment two: the second embodiment has the same structural composition as the first embodiment. From the analysis of the first embodiment, the control method of the first hydraulic telescopic link has strict time requirements for T1, and is mainly applicable to: short travel length (i.e., distance of the detection device from the pickling tank) or a faster travel speed of the copper foil. However, for wide copper foil, the copper foil traveling speed is slow, and at this time, the adoption of the control method described above causes: the normal copper foil between adjacent color difference areas can be pickled, so that economic waste is caused, and the treatment process is prolonged; in extreme cases, the copper foil is always placed in the pickling tank by the possible pickling lifting guide roller, and the meaning of 'detection-repair' is lost.
For this reason, a new design concept needs to be provided for the case of long travel and slower travel speed of the copper foil.
The control method of the first hydraulic telescopic rod of the second embodiment is as follows:
a first state sensor is arranged and used for sensing the length L of the first hydraulic telescopic rod, and the signal of the first state sensor is transmitted to the controller in real time;
the controller is internally provided with a first time module, a first storage module and a second storage and analysis module, wherein the first time module is used for recording the time T when the first hydraulic telescopic rod reaches L1; the first storage module is used for recording the time difference of the adjacent twice color difference areas, and the initial value of the time difference is 0;
for convenience of expression, the color difference area of the first-time first hydraulic telescopic rod 'extension-contraction' treatment is called as a first-segment color difference area, and so on;
the second storage and analysis module is used for recording the detection time of the color difference areas, marking the first color difference area and the last color difference area of the color difference areas of different areas, and calculating the distance X of the travel distance of the initial color difference areas of the different areas from the pickling tank in real time;
wherein, X is calculated as follows: x = travel length of copper foil from photoelectric color measurement sensing distance to pickling tank- (current time-detection time) X copper foil travel speed;
the method for determining the initial and final color difference areas of the color difference areas of different areas comprises the following steps:
Firstly, determining the initial and final color difference areas of a first patch color difference area, and determining the initial color difference area of the first patch color difference area when the color difference area is received for the first time; … …; in the U time of receiving the N color difference area signal, when the color difference area is not detected, marking the N color difference area as the end area of the first area;
secondly, determining the initial and final color difference areas of the color difference area of the second sheet area, and marking the color difference area detected again after the final area of the first sheet area as the initial color difference area of the second sheet area; … …; in the U time of receiving the signal of the N color difference area of the second sheet area, when the color difference area is not detected, marking the N color difference area of the second sheet area as the end area of the second sheet area;
and determining the first and last color difference areas of the residual patch color difference areas in sequence according to the method.
When the initial color difference areas of the color difference areas of different sections travel a distance from the pickling tank X1, the first hydraulic telescopic rod starts to start, and the time of the first hydraulic telescopic rod reaching the L1 length is earlier than the time of the color difference areas reaching the pickling tank by T0 time;
after the first hydraulic telescopic rod reaches L1, the first time module T starts to count time, and when T=preset time T1+ is the time difference between the tail area and the initial area of different sections, the first hydraulic telescopic rod starts to shrink;
Wherein, the size of U is set as follows: the first hydraulic telescopic rod is stretched out to the L1 state from the L1 state to the L0 state for the time +T0+T2, and the size of the first hydraulic telescopic rod is 10-35s.
The above-described scheme takes the "extension-retraction" of the first hydraulic telescopic rod as an example:
when the first hydraulic telescopic rod is in a shortened state, after a color difference area signal is received for the first time, when the color difference area advances to a distance from the pickling tank X1, the first hydraulic telescopic rod starts to be started, then after the first hydraulic telescopic rod stretches out until the length of L1, the first time module starts to count time, and the time of the first hydraulic telescopic rod reaching the length of L1 is earlier than the time of the color difference area reaching the pickling tank by T0 time;
in the time U after the first time of receiving the color difference area signal, the color difference area is not detected again, and when T=T1, the first hydraulic telescopic rod is shortened and retracted to a preset position;
when the color difference area is detected within the U time after the color difference area signal is received for the first time, the difference between the 1 st time of detection time of the second time is recorded as 01, and when the color difference area is not detected within the U time after the color difference area signal is detected for the second time, and when T=T1+01, the first hydraulic telescopic rod is shortened and retracted to a preset position;
In the time U after the color difference area signal is detected for the second time, when the color difference area is detected again, the difference between the adjacent two detection times is recorded as 02, and in the time U after the color difference area signal is detected for the third time, when the color difference area is not detected, and when T=T1+01+02, the first hydraulic telescopic rod is shortened and retracted to a preset position;
when the color difference area is detected again in the U time after the color difference area signal is detected for the third time, the difference between the adjacent two detection times is recorded as 03, and when the color difference area is not detected in the U time after the color difference area signal is detected for the third time and T=T1+01+02+03, the first hydraulic telescopic rod is shortened and retracted to a preset position;
……
the determination is repeated in a circulating way to determine the first retraction time of the first hydraulic telescopic rod.
The control method of the second embodiment can be implemented only by knowing the color difference area at the end of the sheet area, namely, determining the color difference area at the end of the sheet area before the first hydraulic telescopic rod lifting condition is met; the requirements are as follows: the travel time (or travel distance) of the copper foil between the photoelectric colorimetric sensor and the pickling tank is longer.
The limit application conditions of the second embodiment are: copper foil distance from photo colorimetric sensor TO pickling tank + travelling speed of copper foil x (T1-TO) =travelling speed of copper foil x U;
Selecting the mode of the second embodiment when the distance between the photoelectric color measuring sensor and the pickling tank is + the advancing speed of the copper foil (T1-TO) > the advancing speed of the copper foil x U;
selecting the mode of the first embodiment when the copper foil distance between the photoelectric color measuring sensor and the pickling tank is plus the advancing speed of the copper foil (T1-TO) is less than or equal TO the advancing speed of the copper foil multiplied by U;
preferably, when the following formula is satisfied: the distance between the photoelectric color measuring sensor and the copper foil in the pickling tank is more than or equal to the advancing speed of the copper foil multiplied by U; the method of example two was used.
The idea of the above analysis is that, in order to improve the processing effect of the adjacent color difference region, the manner of the second embodiment may be adopted, which needs to satisfy: the distance between the photoelectric color measuring sensor and the pickling tank is greater than or equal TO the copper foil travel speed X U, namely the distance between the photoelectric color measuring sensor and the pickling tank is required.
The distance between the photoelectric color measuring sensor and the copper foil in the pickling tank is less than or equal to the advancing speed of the copper foil multiplied by U; the method of example one was employed.
As shown in fig. 14, in the process of the pickling lifting guide roller by adopting the control method of the second embodiment, before the pickling lifting guide roller is lifted, the controller determines the start and end color difference areas of the color difference area of the first area (a is the start color difference area of the first area, and c is the end color difference area of the first area); after the first zone color difference area is cleaned, the pickling lifting guide roller is lifted;
Then, when d (which is both the initial color difference area and the final color difference area of the second patch) of the color difference area of the second patch reaches a distance from the pickling tank X1, the pickling lifting guide roller drops, and then after the color difference area of the second patch is cleaned, the pickling lifting guide roller rises.
The above examples are provided for convenience of description of the present invention and are not to be construed as limiting the invention in any way, and any person skilled in the art will make partial changes or modifications to the invention by using the disclosed technical content without departing from the technical features of the invention.
Claims (8)
1. The utility model provides a copper foil surface colour difference detects and prosthetic devices which characterized in that includes: the device comprises an unreeling roller (1), a first pre-storing device (8), detection equipment, repairing equipment, a second pre-storing device (9) and a reeling roller (2);
the detection apparatus includes: at least 1 photoelectric color measuring sensor (3);
the repair device includes: the device comprises a controller, an acid washing mechanism (4), a water washing mechanism (5) and a dryer (6), wherein the photoelectric color measurement sensor (3) is connected with the controller;
The photoelectric color measuring sensor of the detection equipment is a CCD camera, and the CCD camera is vertically arranged in the advancing direction of the copper foil and is arranged right above the copper foil; the number of CCD cameras can cover the full width of the copper foil;
the pickling mechanism (4) comprises: the pickling machine comprises a pickling rack, a pickling first guide roller (4-1), a pickling lifting guide roller (4-2), a pickling third guide roller (4-3) and a pickling fourth drive roller (4-4), wherein the pickling rack is provided with a pickling tank (4-8), the pickling tank is arranged below the pickling lifting guide roller (4-2), and a dilute sulfuric acid solution is arranged in the pickling tank; the pickling first guide roller is arranged on one side of the pickling tank, the pickling third guide roller and the pickling fourth drive roller are arranged on the other side of the pickling tank, the pickling lifting guide roller (4-2) is a lifting guide roller, and the copper foil is arranged below the pickling lifting guide roller (4-2);
the copper foil is discharged from the unreeling roller (1), sequentially passes through the detection equipment, the acid washing mechanism (4), the water washing mechanism (5) and the dryer (6), and is finally collected by the reeling roller (2).
2. The copper foil surface color difference detection and repair device according to claim 1, wherein a first hydraulic telescopic rod (4-5) is arranged at the top of the pickling rack, a fixing part of the first hydraulic telescopic rod is fixed on the pickling rack, a movable rod part of the first hydraulic telescopic rod is connected with a first rotating shaft support bracket (4-7), and connecting parts matched with rotating shafts of pickling lifting guide rollers (4-2) are arranged at two ends of the first rotating shaft support bracket (4-7); the first hydraulic telescopic rod (4-5) is connected with the controller.
3. The copper foil surface color difference detection and repair device according to claim 2, wherein a limiting part (4-6) is arranged on a vertical rod of the pickling rack, a sliding groove is arranged at a connecting part of the first rotating shaft support bracket (4-7), the limiting part (4-6) is inserted into the connecting part of the first rotating shaft support bracket, and the connecting part of the first rotating shaft support bracket (4-7) can only slide up and down along the limiting part.
4. The copper foil surface color difference detecting and repairing device according to claim 1, wherein the water washing mechanism (5) comprises: the washing machine comprises a washing machine frame, a washing first guide roller (5-1), a washing second guide roller (5-2), a washing third guide roller (5-3) and a washing fourth drive roller (5-4), wherein the washing machine frame is provided with a washing tank which is arranged below the washing second guide roller (5-2), and clear water is arranged in the washing tank; the first water-washing guide roller is arranged on one side of the water-washing groove, the third water-washing guide roller and the fourth water-washing drive roller are arranged on the other side of the water-washing groove, the second water-washing guide roller (5-2) is a lifting guide roller, and the copper foil is arranged below the second water-washing guide roller (5-2); the washing machine frame is provided with a second hydraulic telescopic rod, the fixed part of the second hydraulic telescopic rod is fixed on the washing machine frame, the movable rod part of the second hydraulic telescopic rod is connected with a second rotating shaft supporting bracket, and two ends of the second rotating shaft supporting bracket are provided with connecting parts matched with rotating shafts of the second washing guide rollers; be provided with spacing portion on the vertical pole of washing frame, the connecting portion of second pivot support frame is provided with the spout, and spacing portion inserts in the connecting portion of second pivot support frame, and the connecting portion of second pivot support frame only can slide from top to bottom along spacing portion.
5. The copper foil surface color difference detecting and repairing device according to claim 4, further comprising: the first state sensor is used for sensing the length L of the first hydraulic telescopic rod and is connected with the controller.
6. The copper foil surface color difference detecting and repairing device according to claim 3, further comprising: the second state sensor is used for sensing the length M of the second hydraulic telescopic rod, the third state sensor is used for sensing whether the dryer is started, and the second state sensor and the third state sensor are connected with the controller.
7. The copper foil surface color difference detecting and repairing device according to claim 1, wherein the second pre-storing means (9) comprises: a first guide roller (9-1), a second guide roller (9-2) and a third guide roller (9-3) are pre-stored, copper foil passes through the upper surface of the second guide roller (9-2), and the second guide roller (9-2) is a liftable guide roller;
further comprises: the second pre-storing device comprises a second pre-storing device frame, wherein a third hydraulic telescopic rod is arranged at the top of the second pre-storing device frame, a fixed part of the third hydraulic telescopic rod is fixed on the second pre-storing device frame, a movable rod part of the third hydraulic telescopic rod is connected with a third rotating shaft supporting bracket, and connecting parts matched with rotating shafts of pre-storing second guide rollers (9-2) are arranged at two ends of the third rotating shaft supporting bracket; the third hydraulic telescopic rod is connected with the controller;
The vertical rod of the second pre-storing device frame is provided with a limiting part, the connecting part of the third rotating shaft supporting bracket is provided with a sliding groove, the limiting part is inserted into the connecting part of the third rotating shaft supporting bracket, and the connecting part of the third rotating shaft supporting bracket can only slide up and down along the limiting part.
8. The copper foil surface color difference detecting and repairing device according to claim 6, wherein the first pre-storing means (8) and the second pre-storing means (9) have the same structure.
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| CN113049501A (en) * | 2021-03-22 | 2021-06-29 | 广东嘉元科技股份有限公司 | Copper foil color difference on-line measuring device |
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