JP4916491B2 - Method and system for selecting and removing defective cathode plate - Google Patents

Description

  More particularly, the present invention relates to a method and system for sorting out defective cathode plates, and more particularly, to a poorly electrodeposited cathode plate and a deformation of the cathode plate, which have been poorly electrodeposited due to the formation of bumps or insufficient electrodeposition in electrolytic refining of metals. More particularly, the present invention relates to a method for sorting out and rejecting defective cathode plates that are defective due to an abnormality of a protector and a system thereof.

  Electrolytic purification of metal using permanent cathode (PC) by ISA method, for example, electrolytic purification of copper is performed by using a large number of stainless steel cathode plates (permanent cathode plates) and crude copper in an electrolytic cell in which an electrolytic solution is stored. It is carried out by electrodepositing electrolytic copper on both surfaces of the cathode plate by alternately immersing the cast anode plate (anode plate) and energizing it. Then, the electrolytic copper electrodeposited on the surface of the cathode plate is stripped off by a stripping device to obtain a product. Specifically, as shown in FIG. 1, the cathode plate 1 is a plate-shaped material made of stainless steel, and a protector 5 made of synthetic resin is fitted on both side portions thereof, and a cross bar 4 is provided on the upper end portion. It has been. In addition, two windows 3 and 3 are provided at the lower part of the crossbar 4. By hooking the window plates 3 and 3 with a hook of an electrode plate conveying device (not shown), Removal and conveyance are performed. The cathode plate 1 made of stainless steel has been widely adopted in recent years because it is strong and can be used repeatedly, and because it has good flatness, it does not easily cause a short circuit during electrolytic purification. Then, electrolytic copper 2 is electrodeposited on both surfaces of the cathode plate 1 after the electrolytic purification, and the electrolytic copper 2 stripped by the stripping device is transported by the transport device as a set of two sheets to ensure flatness. For this purpose, a flat press for corrugation and corrugation for corrugation that corrugates electrolytic copper are performed, and the product is provided as a product.

  For example, JP-A-2005-240146 (Patent Document 1) is known as a conventional electrolytic copper plate recovery system. This electrolytic copper plate recovery system includes a plywood carry-in portion into which a plywood with a SUS plate (cathode plate) having electrolytic copper deposited on the surface thereof, a cleaning device for cleaning these plywood, and a SUS plate A stripping device for stripping the electrical copper plate from the SUS, a SUS unloading unit for collecting the SUS plate after stripping, a defective product extracting unit for extracting defective products that failed to be peeled off during the stripping process, and after stripping A joining device for joining the electrolytic copper plates, a loading device for loading and holding the joined electrolytic copper plates, a packaging device for packing the laminated electrolytic copper plates, and a copper plate unloading unit for collecting the electrolytic copper plates after packing In addition, a conveyor is provided between each device or the loading / unloading unit.

  An outline of the operation of the above-described electrolytic copper plate recovery system will be described. First, the plywood carried into the plywood carry-in section is conveyed to the cleaning device in a suspended state, and is simultaneously cleaned every predetermined number of sheets. The cleaned plywood is transported to the traverse conveyor by the transport conveyor, and peeled continuously one by one in a state where the transport direction of the plywood is deflected in a direction parallel to the plywood surface (that is, the axial direction of the crossbar 4) by the traverse conveyor. It is conveyed to the picking device. When the stripping device receives the plywood one by one, the electrolytic copper plate is peeled off from the SUS plate, and the SUS plate and the electrolytic copper plate are each conveyed by a conveyor. The conveyed electrical copper plate is packed by a packing device and collected from the copper plate carry-out section.

JP-A-2005-240146

  However, when stripping electrical copper from a poorly electrodeposited cathode plate, which has been poorly electrodeposited due to the occurrence of bumps or insufficient electrodeposition, using a stripping device, not only does the stripping work well, but there is a problem with the stripping device. May occur. Once trouble occurs, the traverse conveyor must be stopped to deal with it, which not only takes time, but also leads to a reduction in the work efficiency of the entire electric copper plate recovery system, resulting in a significant reduction in productivity. Also, the stripped electrical copper plate is not a product.

  Moreover, in the electrolytic refining by the permanent cathode method, the cathode plate from which the electrolytic copper plate has been peeled off is reused, but the cathode plate is deformed, or the shape is considered defective due to abnormalities such as breakage or peeling of the protector. Since the cathode plate cannot be reused as it is, it is necessary to distinguish it from a normal cathode plate.

  Therefore, the present invention strips the electrodeposited metal from the electrodeposited cathode plate, which has been electrodeposited poorly due to the formation of bumps or insufficient electrodeposition, among the cathode plates electrodeposited with purified metal by electrolytic purification. The electrodeposited metal is stripped from the defective cathode plate which has been defective due to the normal cathode plate and the deformation of the cathode plate and the abnormality of the protector. It is an object of the present invention to provide a defective cathode plate sorting and eliminating method and system capable of improving the production efficiency of the entire electric copper plate collecting system by eliminating the negative electrode plate.

  In order to solve the above-mentioned problems, the present invention according to claim 1 is directed to a poorly electrodeposited cathode plate which has been poorly electrodeposited due to the formation of bumps or insufficient electrodeposition in the electrolytic refining of metal, deformation of the cathode plate, A method for sorting out and rejecting defective cathode plates that are defective due to an abnormality, wherein a first marking is applied to a predetermined portion of a cathode plate with poor electrodeposition among a number of cathode plates that have undergone electrolytic purification. A marking step in which a second marking of a color different from the first marking is attached to a predetermined portion of the poorly shaped cathode plate, and the first marking or the second marking on a number of cathode plates conveyed by the load-in conveyor. A marking detection step in which the presence or absence of the marking and the difference in the color are detected by the detection means by photographing a predetermined portion of the cathode plate to be marked with the second with a camera; The defective electrodeposition cathode plate detected to have been marked with the first marking by the process is transferred to the first reject conveyor by the first transfer device and removed, and the normal is not marked. The cathode plate and the defective cathode plate detected to have the second marking are transferred to the traverse conveyor by the first transfer device and sent to the stripping process for stripping the electrodeposited metal. Of the cathode plates that have been separated by one sorting step and stripped of the electrodeposited metal and are transported by the traverse conveyor, the poorly shaped cathode plate with the second marking is secondly transferred by the second transfer device. The normal cathode plate that is not marked and transferred to the reject conveyor is configured to include a second sorting step that is transferred to the load-out conveyor. It provides a sorting exclusion method that defective cathode plate.

  In order to solve the above problem, the present invention described in claim 2 is the method of selecting and removing defective cathode plates according to claim 1, wherein the first marking is yellow and the second marking is blue, The first marking or the second marking is provided on the surface in the vicinity of one end of the cross bar of the cathode plate.

  In order to solve the above-mentioned problems, the present invention according to claim 3 is directed to a poorly electrodeposited cathode plate which has been poorly electrodeposited due to the formation of bumps or insufficient electrodeposition in metal electrorefining, deformation of the cathode plate, This is a system for sorting out and rejecting defective cathode plates that are defective due to an abnormality, and is a cathode plate with poor electrodeposition among a number of cathode plates that have been electrorefined and are conveyed by a load-in conveyor. The presence or absence of a second marking of a color different from the first marking previously attached to the predetermined location of the first marking or the first marking previously applied to the predetermined location of the defective shape cathode plate is photographed with a camera. When the marking detection means to detect and the electrodeposition defect cathode plate detected by the marking detection means to be attached with the first marking are transferred to the first reject conveyor and eliminated To the stripping means for stripping the electrodeposited metal by transferring the non-marked normal cathode plate and the poorly shaped cathode plate detected to have the second marking to the traverse conveyor Of the cathode plate that has been stripped of the first transfer device to be sent and the electrodeposited metal conveyed by the traverse conveyor, the poorly shaped cathode plate with the second marking is transferred to the second reject conveyor. A defective cathode plate sorting and eliminating system characterized in that a normal cathode plate not marked and mounted is configured to include a second transfer device for transferring to a load-out conveyor. provide.

  According to the method and system for sorting out and rejecting defective cathode plates according to the present invention, it is possible to eliminate a poorly electrodeposited cathode plate that has been poorly electrodeposited due to the occurrence of bumps or insufficient electrodeposition before transfer to a traverse conveyor. As a result, troubles in the stripping device and transport troubles in the traverse conveyor caused by poorly electrodeposited electrode plates can be prevented in advance, thereby improving the production efficiency of the entire electrolytic copper plate recovery system. There is an effect that can be done.

  In addition, according to the method and system for selecting and rejecting defective cathode plates according to the present invention, after the electrodeposited metal is peeled off for the defective cathode plate which has become defective due to deformation of the cathode plate or abnormality of the protector, it is normal. Since the sorting and removal are performed separately from the cathode plate, there is an effect that the labor of sorting when the cathode plate is reused is eliminated.

  First, after describing the outline of the recovery system for an electroplated copper plate as a preferred embodiment of the electrodeposited metal recovery system in which the defective cathode plate sorting and eliminating method according to the present invention is incorporated, the defective cathode according to the present invention is described. An embodiment of a plate sorting and removing method and system thereof will be described. FIG. 2 is a schematic diagram of an embodiment of a recovery system for an electrolytic copper plate.

  The electrolytic copper plate recovery system 100 shown in FIG. 2 includes a load-in conveyor 101 for carrying a large number of cathode plates 1 with electrolytic copper 2 electrodeposited onto both surfaces thereof after electrolytic purification is completed, The first reject conveyor 7 includes a cleaning device 102 that performs cleaning, and a negatively electrodeposited cathode plate 1 a that has been poorly electrodeposited due to the occurrence of bumps K or insufficient electrodeposition of the cathode plate 1 cleaned by the cleaning device 102. Transferred and removed from the system, and the normal cathode plate 1 and the defective cathode plate 1b were transferred to the traverse conveyor 6 for conveying the conveying direction in the same direction as the longitudinal direction of the crossbar 4 without changing the posture. The first transfer device 35a, the peeling device 103 for peeling the electrolytic copper 2 from the normal cathode plate 1 and the poorly shaped cathode plate 1b conveyed by the traverse conveyor 6, and the electrolytic copper 2 were peeled off. The negatively shaped cathode plate 1b is transferred to the second reject conveyor 8 and removed out of the system, and the normal cathode plate 1 is transferred to the load-out conveyor 104 for collecting it. Two transfer devices 35b, a polymerization device 107 that superimposes the peeled plate-like electrolytic copper 2 in a set, a copper plate conveying device 106 that conveys the superposed copper 2, and an electrolytic copper plate conveyance A press device 108 that performs flat press and corrugation while being conveyed by the device 106, and a predetermined number of pieces of electrolytic copper 2 that have been pressed are loaded and weighed, labeled, bundled, marked, etc., and then packed. The copper plate carrying-out part 109 which collect | recovers the electrical copper 2 of this is comprised.

  Next, the outline | summary of operation | movement of this collection | recovery system 100 of an electrical copper plate is demonstrated. First, a large number of cathode plates 1 that have been subjected to electrolytic purification are carried into a load-in conveyor 101 while being suspended by a crane (not shown). A large number of loaded cathode plates 1 are transported to the cleaning device 102 while being transported in a direction perpendicular to the surface of the cathode plate 1 by the load-in conveyor 101 and are simultaneously cleaned every predetermined number of sheets. Of the washed cathode plate 1, the poorly electrodeposited cathode plate 1 a that has been poorly electrodeposited due to the formation of bumps K or insufficient electrodeposition is the first based on the marking M 1 previously attached to a predetermined position of the crossbar 4. It is transferred to the first reject conveyor 7 by the transfer device 35a and excluded from the system. Then, the other cathode plate 1 is transferred to the traverse conveyor 6 by the first transfer device 35a, and this time, the conveying direction of the cathode plate 1 is parallel to the surface of the cathode plate 1 (that is, the crossbar 4). Are transported toward the peeling device 103 one by one continuously.

  When the stripping device 103 receives the cathode plates 1 one by one, the electrolytic copper 2 is peeled off from both surfaces of the cathode plate 1, and the cathode plate 1 is sent by the traverse conveyor 6 toward the load-out conveyor 104. Then, the poorly shaped cathode plate 1b which has become defective due to deformation of the cathode plate 1 or abnormality of the protector is rejected by the second transfer device 35b on the basis of the marking M2 previously attached to the predetermined position of the crossbar 4. It is transferred to the conveyor 8 and excluded from the system. On the other hand, the normal cathode plate 1 is transferred to the load-out conveyor 104 by the second transfer device 35b and again subjected to electrolytic purification. The electrolytic copper 2 peeled off from the cathode plate 1 is superposed on a set of two sheets by the polymerization apparatus 107, and is joined and fixed by an appropriate method at least at two or more positions. To be transferred. The electrolytic copper 2 superposed on a set of two sheets is flat pressed and corrugated by the press device 108 while being transported by the electrolytic copper transport device 106. Then, a predetermined number of sheets of electrolytic copper 2 that have been pressed are loaded and weighed, labeled, bundled, marked, etc., packed, and collected from the copper plate unloading section 109.

  Now, the defective cathode plate sorting and eliminating system according to the present invention functions the recovery system 100 for an electrolytic copper plate that performs the above-described configuration and operation. First, a large number of cathode plates 1 that have been subjected to electrolytic purification and have been carried in by the load-in conveyor 101 are poorly electrodeposited cathode plates 1a that are considered to be poorly electrodeposited due to the formation of bumps K, insufficient electrodeposition, etc. The presence or absence of a badly shaped cathode plate 1b, which is considered to be defective due to deformation of the plate or an abnormality of the protector, is confirmed, and the negatively electrodeposited cathode plate 1a has yellow as a first marking in the vicinity of one end of the crossbar 4. Marking M1 is given. The poorly shaped cathode plate 1b is given a blue marking M2 as a second marking different from the color (yellow) attached to the poorly electrodeposited cathode plate 1a. If the cathode plate 1 is a poorly electrodeposited cathode plate 1a and corresponds to the poorly shaped cathode plate 1b, both may be marked, but the yellow marking M1 indicating the poorly electrodeposited cathode plate 1a is given priority. It is preferable to attach.

  Here, whether the cathode plate 1 is good or bad is determined by visual observation, and the surface of the cathode plate 1 has a bump K having a predetermined height or the thickness of the electrolytic copper 2 has not reached the predetermined thickness. It is judged as bad. In this case, the standard of good or bad is that at least one bump K having a height H (for example, 10 mm) or more is generated on the surface of the cathode plate 1 or even if the height H (for example, 10 mm) or less. When the bump K is generated in an area of 40% or more with respect to the entire surface of the plate 1, or based on whether the thickness of the electrolytic copper 2 is 5 mm or less. And yellow marking 1 is attached | subjected to the predetermined location of the electrodeposition defect cathode plate 1a, for example, the edge part vicinity of the one side of the crossbar 4, as the 1st marking M1. On the other hand, in the case of a poorly shaped cathode plate 1b which is regarded as defective due to deformation of the cathode plate 1 or the cross bar 4 or abnormality of the protector, the second marking M2 is provided near one end of the cross bar 4. A blue marking is attached. Good or bad standards in this case are based on whether the cathode plate 1 is curved ± 10 mm or more in the thickness direction or the protector 5 is not damaged or peeled off.

  A camera 31 as a detecting means for detecting the presence or absence of a marking M1 or M2 attached to the vicinity of the end of the cross bar 4 of the cathode plate 1 in a conveying state at a predetermined position that has passed through the cleaning device 102, and a difference in its color; Then, the image taken by the camera 31 is analyzed to detect whether the cathode plate 1 is normal, or whether it is a poorly electrodeposited cathode plate 1a or a poorly shaped cathode plate 1b by the marking detecting means 33, and the result Is provided with a control device 27 for controlling the operation of the first transfer device 35a.

  Although not shown, the control device 27 is a central processing which performs various information processing based on various devices constituting a general-purpose computer, for example, a storage device such as a memory for storing data, and a program recorded in the storage device. The apparatus includes an input device such as a keyboard for inputting necessary data, a display device for displaying a processing status on a screen, and a communication device for transmitting and receiving data to and from the control device 27. In addition, since these vices are well-known, description here is abbreviate | omitted.

  As shown in FIG. 4, the control device 27 is loaded with a program for causing the above-described marking detection means 33 to function based on an image photographed by the camera 31 in a computer constituting the control device 27. The presence or absence of the markings M1 and M2 and whether it is the first marking M1 or the second marking M2 are detected by the marking detection means 33 configured in the control device 27. When the marking detection means 33 detects M1 which is the first marking, the control device 27 sends a control signal to the first transfer device 35a so that the corresponding cathode plate 1 is transferred to the traverse conveyor 6. Are controlled so as to be transferred to the reject conveyor 7 side without being transferred. The cathode plate 1 determined to have poor electrodeposition by this first screening is excluded from the system without being sent to the stripping device 103.

  The presence or absence of marking by the marking detection means 33 and detection of the first marking M1 and the second marking M2 are specifically detected by detecting a change in contrast in image data near the end of the crossbar 4 photographed by the camera 31. Is done by doing. Therefore, it is preferable that the first marking M1 and the second marking M2 have colors different from the crossbar 4 as much as possible in color tone, brightness, and saturation, and the first marking M1 and the second marking M2 Colors that make the difference as clear as possible are preferred. This is because the marking on the color tone makes the contrast on the photographed image clear and the identification accuracy is improved. Examples of preferable colors include combinations of yellow and blue, red and green, and the like. Specifically, the marking detection unit 33 has a function of digitizing color information from the image data captured by the camera 31 according to the contrast of the corresponding portion. For example, “0” is displayed when there is no coloration (normal). The numerical value is set to “1” for yellow with poor electrodeposition and “2” for blue with poor shape. In the case of a normal cathode plate 1, the marking detection means 33 assigns the number “0” to the cathode plate 1. Similarly, the marking detection means 33 gives "1" to the poorly electrodeposited cathode plate 1a and "2" to the poorly shaped cathode plate 1b. On the other hand, in the case of the cathode plates 1 and 1b with “0” or “2” attached to the control device 27, they are transferred to the traverse conveyor 6, and the cathode plate 1a with “1” attached is the first plate. A control program is provided to send a control signal for operating the first transfer device 35a so as to transfer to the reject conveyor 7. As a result, when the cathode plate 1 is “1”, the control device 27 rejects the cathode plate 1 a corresponding to the first transfer device 35 a without transferring it to the traverse conveyor 6. A control signal is sent so as to transfer to the conveyor 7 side, and its operation is controlled. On the other hand, when the cathode plate 1 is the number “0” or “2”, the control device 27 transfers the corresponding cathode plates 1 and 1b to the traverse conveyor 6 with respect to the first transfer device 35a. A control signal is sent to the peeling device 103 to control its operation. In this way, the cathode plate 1 a determined to be defective in electrodeposition by the first sorting is excluded from the system without being sent to the stripping device 103. In order to prevent erroneous detection of the camera 31 due to the influence of the weather or day and night, it is preferable to install illumination and keep the shooting conditions at the shooting location constant.

  On the other hand, the normal cathode plate 1 and the defective cathode plate 1b from which the electrolytic copper 2 has been peeled off by the stripping device 103 are further transported by the traverse conveyor 6, and the second transfer device is transported to the transport destination. 35b is installed, and the defective cathode plate 1b, to which the second marking M is attached by the second transfer device 35b, is transferred to the second reject conveyor 8 to be removed and marked. A normal cathode plate 1 that is not present is transferred to a load-out conveyor. The distribution of the normal cathode plate 1 and the defective shape cathode plate 1b in the second transfer device 35b is performed by the control device 27 based on the number “0” or “2” of the color information as described above. This is done by controlling its operation by sending it to the transfer device 35b. Due to the second sorting by the second transfer device 35b, the poorly shaped cathode plate 1b is excluded from the system. As another control method of the second transfer device 35b, for example, the first transfer device 35a is connected to the normal cathode plate 1 and the electric power by a control signal from the control device 27 based on information detected by the marking detection means 33. Counting how many times the poorly-attached cathode plate 1a has been transferred, and controlling the operation of the second transfer device 35b by grasping the order of transport of the cathode plate 1 based on the number of transfers. Thus, it is possible to distinguish between the normal cathode plate 1 and the poorly shaped cathode plate 1b that are conveyed. In this way, the conveyance course of the cathode plate 1 is controlled. The cathode plate 1 colored yellow or blue is erased by an electric sander in the correction chamber, and further repairs a defective portion, corrects a curved cathode plate, or replaces a protector.

  Next, a preferred embodiment of the defective cathode plate sorting and eliminating method according to the present invention will be described together with the operation of the above-described defective cathode plate sorting and eliminating system. First, a poorly electrodeposited cathode plate in which the electrodeposition state is poor due to the occurrence of bumps K or the lack of electrodeposition of a large number of cathode plates 1 that have been electrolytically refined and have been transported to the load-in conveyor 101. 1a and the presence or absence of a badly shaped cathode plate 1b which is considered to be defective due to deformation of the cathode plate or abnormality of the protector, and the first electrode near the one end of the crossbar 4 is in contact with the poorly electrodeposited cathode plate 1a. A yellow marking M1 is given as the marking, and a blue marking M2 is given as the second marking on the poorly shaped cathode plate 1b. (Step S1).

  A large number of cathode plates 1 for which the marking operation has been completed are cleaned by the cleaning device 102 while being transported by a load-in conveyor, and then the vicinity of the end portion of the crossbar 4 is photographed by the camera 31 which is a detection means. (Step S2), the presence / absence of the markings M1 and M2 and the difference in their colors are detected (Step S3). The detection is performed by analyzing an image photographed by the camera 31 by the marking detection means 33 configured by a program installed in a computer constituting the control device 27. Thereby, the presence / absence of the markings M1, M2 and whether it is the first marking M1 or the second marking M2 are determined. When the marking detection means 33 detects M1 which is the first marking, the control device 27 sends a control signal to the first transfer device 35a, and the corresponding electrodeposition defect cathode plate 1a is transferred to the traverse conveyor 6. Is moved so as to be transferred to the reject conveyor 7 side without being transferred (step S4). The poorly electrodeposited cathode plate 1 a determined to be defective in electrodeposition by this first sorting step is excluded from the system without being sent to the stripping device 103. Incidentally, the poorly electrodeposited cathode plate 1a excluded from the system is manually stripped of the electrolytic copper 2, the defective electrolytic copper 2 is reused as a cold material, and the cathode plate 1 is used for electrolytic purification. Reused.

  When it is detected by the detection means 33 that the cathode plate 1 is normal or not marked with any markings M1 or M2, or the poorly shaped cathode plate 1b with the second marking M2, the control device 27 Sends a control signal to the first transfer device 35a, and the first transfer device 35a transfers the normal cathode plate 1 or the defective shape cathode plate 1b to the traverse conveyor 6 based on the control signal (step S5). ) To the stripping device 103 for stripping the electrical copper 2. Then, whether the cathode plate 1 transported by the traverse conveyor 6 after the stripping of the electrolytic copper 2 is a normal cathode plate 1 or a poorly shaped cathode plate 1b with the second marking M2 attached. Sorting is performed (step S6), and the defective cathode plate 1b with the second marking M2 is transferred to the second reject conveyor 8 by the second transfer device 35b based on the control signal from the control device 27. The normal cathode plate 1 without the marking M2 is transferred to the load-out conveyor 104 (step S8). The normal cathode plate 1 classified by the second sorting step is again subjected to electrolytic purification, while the poorly shaped cathode plate 1b is subjected to electrolytic purification again by correcting distortion or curvature or replacing the protector 5. It will be offered to.

  As described above, according to the method and system for sorting out defective cathode plates according to the present invention, troubles in the stripping apparatus 103 and transport troubles in the traverse conveyor 6 caused by the electrodeposition defect electrode plate 1a are prevented in advance. In addition, since there is no need for sorting when the cathode plate 1 is reused, the overall production efficiency of the electrolytic copper plate recovery system can be increased.

  As described above, preferred examples of the present invention have been described in detail, but the present invention is not limited to such specific embodiments, and within the scope of the gist of the present invention described in the claims, Needless to say, various modifications and changes are possible.

It is a perspective view which shows the whole structure of a permanent cathode. It is a schematic diagram of one embodiment of an electrolytic copper recovery system. It is a perspective view which shows one Embodiment of the detection means of the selection exclusion system of the bad cathode plate which concerns on this invention. It is a block diagram which shows one Embodiment of the 1st and 2nd transfer apparatus of the selection exclusion system of the bad cathode plate which concerns on this invention. 3 is a flowchart of an embodiment of a method for sorting and eliminating defective cathode plates according to the present invention.

Explanation of symbols

M1 1st marking M2 2nd marking K Cobb 1 Cathode plate 1a Poorly electrodeposited cathode plate 1b Poorly shaped cathode plate 2 Copper 3 Window 4 Crossbar 5 Protector 6 Traverse conveyor 7 First reject conveyor 8 Second Reject conveyor 27 Control device 33 Marking detection means 35a First transfer device 35b Second transfer device 101 Load-in conveyor 104 Load-out conveyor

Claims (3)

Defective cathode plate that selectively rejects poorly electrodeposited cathode plates that have been poorly electrodeposited due to the formation of bumps or insufficient electrodeposition in electrolytic refining of metals, and defectively shaped cathode plates that have become defective due to deformation of the cathode plate or abnormalities of the protector The screening exclusion method of
Of the many cathode plates that have undergone electrolytic refining, a first marking is applied to a predetermined portion of the poorly electrodeposited cathode plate, and a second color of a color different from the first marking is applied to the predetermined portion of the poorly shaped cathode plate. Marking process with the marking of
The presence or absence of marking and the difference in its color are detected by photographing a predetermined portion of the cathode plate to which the first marking or the second marking should be attached for a large number of cathode plates conveyed by a load-in conveyor. A marking detection step to detect by means;
The poorly electrodeposited cathode plate that is detected to have been subjected to the first marking in the detection step is removed by being transferred to the first reject conveyor by the first transfer device, and is marked. The normal cathode plate which has not been detected and the badly shaped cathode plate which has been detected to have a second marking are transferred to the traverse conveyor by the first transfer device to peel off the electrodeposited metal. A first selection process to be sent to the collection process;
Of the cathode plates that have been stripped of the electrodeposited metal and are transported by the traverse conveyor, the defectively shaped cathode plate with the second marking is transferred to the second reject conveyor by the second transfer device. A second sorting step in which the normal cathode plate without marking is transferred to the load-out conveyor,
A method for sorting and eliminating defective cathode plates, comprising: In the screening exclusion method of the defective cathode plate according to claim 1,
The first marking is yellow, the second marking is blue, and the first marking or the second marking is attached to the surface in the vicinity of one end of the cross bar of the cathode plate. A method for sorting out and rejecting defective cathode plates. Defective cathode plate that selectively rejects poorly electrodeposited cathode plates that have been poorly electrodeposited due to the formation of bumps or insufficient electrodeposition in electrolytic refining of metals, and defectively shaped cathode plates that have become defective due to deformation of the cathode plate or abnormalities of the protector The sorting and eliminating system of
After the electrolytic purification is finished, among the many cathode plates conveyed by the load-in conveyor, the first marking previously attached to the predetermined portion of the poorly electrodeposited cathode plate or the predetermined portion of the poorly shaped cathode plate is attached in advance. Marking detecting means for detecting the presence or absence of a second marking of a color different from the first marking made and a difference in the color by photographing with a camera;
The poorly electrodeposited cathode plate detected by the marking detection means to be attached with the first marking is transferred to the first reject conveyor to be removed, and a normal cathode plate without marking and A first transfer device for transferring the defective cathode plate detected to have a second marking to a traverse conveyor and sending it to a stripping means for stripping the electrodeposited metal;
Among the cathode plates that have been stripped of the electrodeposited metal conveyed by the traverse conveyor, the poorly shaped cathode plate with the second marking is transferred to the second reject conveyor and eliminated, A normal cathode plate not marked, a second transfer device for transferring to a load-out conveyor,
A system for sorting out and rejecting defective cathode plates, comprising:

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