Detection device and method for low-resistance copper foil processing

Abstract

The invention relates to the field of electronic products, in particular to a low-resistance copper foil processing detection device which comprises a workbench and four supporting legs fixedly connected to the four corners of the lower surface of the workbench respectively. The detection device for low-resistance copper foil processing further comprises a heating plate, a temperature control mechanism, an image extraction mechanism, a vertical plate, a controller, a universal meter and an alarm lamp, and the heating plate is embedded in the workbench and heats the workbench after being powered on; the temperature control mechanism and the image extraction mechanism are respectively mounted at the left and right ends of the upper surface of the workbench; the vertical plate is installed in the middle of the rear end of the upper surface of the workbench. The controller and the universal meter are installed at the upper end and the lower end of the front face of the vertical plate respectively, and the controller is electrically connected with the universal meter. The device has a workbench temperature control function, standardizes a copper foil measurement environment, is more accurate in copper foil resistance measurement, prevents the service life of a product from being shortened, is suitable for extracting images of copper foils of various sizes, realizes surface integrity detection of the copper foils, and improves the product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic products, and particularly to a detection device and method for processing low-resistance copper foil. Background Art

[0002] Copper foil is made by adding a certain proportion of other metals to copper. Copper foil is a cathodic electrolytic material, a thin and continuous metal foil deposited on the base layer of a circuit board, and also the positive electrode current collector of a battery. It also has functions such as electromagnetic shielding and antistatic. The products are widely used in industrial calculators, communication equipment, QA equipment, lithium-ion batteries, civilian televisions, video recorders, CD players, copiers, telephones, air conditioners, automotive electronic components, game consoles, etc. The physical properties of copper foil include electrical conductivity, ductility, plasticity, and surface flatness. As a part of electronic components, after being cut and formed, a multimeter is required to measure the resistance of the copper foil to see if its electrical conductivity can meet the usage requirements. The resistance of copper foil changes greatly with temperature. Due to the difficulty in controlling the detection environment temperature, the copper foil cannot be measured at a standard temperature, resulting in low accuracy of copper foil resistance measurement, large error in copper foil resistance evaluation, short service life of the produced products. Moreover, copper foil has large ductility and plasticity, and it is easy to generate scratches on the surface of the copper foil during processing and transportation. Once the flatness decreases, the quality of electronic products will be reduced. Summary of the Invention

[0003] The purpose of the embodiments of the present invention is to provide a detection device and method for processing low-resistance copper foil, so as to solve the problems of low accuracy of copper foil resistance detection and inability to detect the flatness of copper foil proposed in the above background art.

[0004] To achieve the above purpose, the embodiments of the present invention provide the following technical solution: A detection device for processing low-resistance copper foil, including a workbench and four support legs. The four support legs are respectively fixedly connected to the four corners of the lower surface of the workbench. The detection device for processing low-resistance copper foil further includes a heating plate, a temperature control mechanism, an image extraction mechanism, a vertical plate, a controller, a multimeter, and an alarm lamp. The heating plate is embedded inside the workbench and heats the workbench after being powered on; the temperature control mechanism and the image extraction mechanism are respectively installed at the left and right ends of the upper surface of the workbench; the vertical plate is installed in the middle of the rear end of the upper surface of the workbench; the controller and the multimeter are respectively installed at the upper and lower ends of the front surface of the vertical plate, and the controller is electrically connected to the multimeter to measure the resistance of the copper foil through the multimeter; the number of alarm lamps is two, both are installed on the right side of the front surface of the vertical plate, and the alarm lamps are electrically connected to the controller; The temperature control mechanism includes a storage box, an expansion body, a piston cylinder, a piston, a piston rod, a terminal, a dust cover, a rotating cylinder, a slideway, a resistance strip and a torsion spring. The storage box is embedded in the left end of the upper surface of the workbench; the expansion body is filled in the inner cavity of the storage box; the piston cylinder is vertically installed at the center position of the top of the storage box; the piston is inserted into the inner cavity of the piston cylinder and can slide up and down; one end of the piston rod is installed at the top of the piston; the terminal is installed at the other end of the piston rod, and the terminal is electrically connected to the heating plate; the dust cover is installed at the top end of the outer wall of the piston cylinder; the rotating cylinder is rotatably installed at the top of the inner cavity of the dust cover through a bearing; the slideway is opened on the inner wall of the rotating cylinder, and the terminal is inserted into the inner cavity of the slideway; the resistance strip is installed at the top of the inner cavity of the slideway, and the bottom end of the resistance strip is externally connected to a power supply. By sliding the terminal in the slideway, the resistance of the resistance strip is changed; the torsion spring is sleeved on the top of the rotating cylinder, and both ends of the torsion spring are clamped with the top of the inner wall of the dust cover and the upper surface of the rotating cylinder respectively. Under the action of the torsion force of the torsion spring, the rotating cylinder is driven to rotate counterclockwise.

[0005] As a further scheme of the present invention, the material of the expansion body is mercury.

[0006] As a further scheme of the present invention, the slideway is inclined and distributed on the inner wall of the rotating cylinder.

[0007] As a further scheme of the present invention, the image extraction mechanism includes an outer rod, an inner rod, a rack, a braking component, a support plate, a CCD camera and a CCD light source. The outer rod is vertically installed at the right end of the upper surface of the workbench; the inner rod is inserted into the inner cavity of the outer rod and can slide up and down, and the right side wall of the inner rod is concave; the rack is vertically installed on the right side wall of the inner rod; the braking component is installed at the top end of the right side wall of the outer rod; the support plate is horizontally installed at the top end of the left side wall of the inner rod; the CCD camera and the CCD light source are respectively installed at the left ends of the upper and lower surfaces of the support plate, and both the CCD camera and the CCD light source are electrically connected to the controller.

[0008] As a further scheme of the present invention, the directions of both the CCD camera and the CCD light source are perpendicular to the workbench.

[0009] As a further scheme of the present invention, the braking component includes a sleeve, a rotating shaft, a gear, a brake disc, a friction plate, a spring and a cover plate. The sleeve is installed at the top end of the right side wall of the outer rod; the rotating shaft is horizontally installed at the center position of the left side wall of the sleeve through a bearing and can rotate; the gear and the brake disc are respectively installed at the left and right ends of the rotating shaft, and the gear is meshed with the rack; the friction plate and the spring are both inserted into the inner cavity of the sleeve, and under the action of the elastic force of the spring, the friction plate is pushed to contact the brake disc to brake the gear; the cover plate is installed at the right end of the sleeve.

[0010] As a further scheme of the present invention, the inner wall of the sleeve is provided with a groove to prevent the friction plate from rotating.

[0011] A method for a detection device for processing low-resistance copper foil, comprising the following steps: Step 1: The heating plate heats the workbench, and the workbench conducts heat to the storage box. The volume of the expansion body is proportional to the temperature of the workbench. When the volume of the expansion body increases, it squeezes the piston and the terminal to move upward. Since the slideway is inclined, the terminal rotates the rotating cylinder clockwise by squeezing the resistance strip. The energized length of the resistance strip becomes longer and the resistance value increases, and the power of the heating plate decreases. When the temperature of the expansion body drops and the volume decreases, the torsion spring drives the rotating cylinder to rotate counterclockwise, and the piston moves downward by squeezing the terminal. The energized length of the resistance strip becomes shorter and the power of the heating plate increases, realizing temperature control of the workbench, enabling the copper foil to be measured at a standard temperature. Adjust the multimeter, form a closed loop by contacting the copper foil with the electric pen, measure the resistance of the copper foil, and the controller analyzes the resistance. If the resistance is not within the normal resistance value range of the copper foil, the top alarm light emits light to give an alarm, realizing accurate measurement of the copper foil resistance; Step 2: According to the surface area of the copper foil, move the inner rod up or down. Under the condition of rack and gear transmission, the brake disc rotates clockwise or counterclockwise. At the same time, the elastic force of the spring pushes the friction plate to always contact the brake disc to brake the inner rod with the changed height. Therefore, the distance between the CCD camera and the CCD light source is adjusted, enabling the CCD camera to extract images of copper foils with different surface areas. The controller analyzes whether there are scratches on the copper foil according to the image. If the surface structure of the copper foil does not meet the usage requirements, the bottom alarm light gives an alarm, playing a role in detecting the integrity of the copper foil surface.

[0012] Compared with the prior art, the beneficial effects of the embodiments of the present invention are: 1. In the present invention, the temperature of the workbench and the storage box is made consistent through heat conduction. The volume of the expansion body is proportional to the temperature. When the volume of the expansion body increases, it pushes the piston to move upward. The terminal rotates the rotating cylinder clockwise by squeezing the resistance strip, the energized length of the resistance strip increases, and the power of the heating plate decreases. When the volume of the expansion body decreases, the torsion force of the torsion spring drives the rotating cylinder to rotate counterclockwise, causing the resistance strip to press the terminal to move downward, and the energized length of the resistance strip becomes shorter, and the power of the heating plate increases. Therefore, it has the function of temperature control of the workbench, standardizes the copper foil measurement environment, makes the copper foil resistance measurement more accurate, and prevents the shortening of the product service life; 2. In the present invention, when the inner rod rises or falls, the stop ring disc rotates clockwise or counterclockwise under the drive of the rack and gear. The elastic force of the spring pushes the friction plate to always contact the brake disc, enabling the height of the CCD camera and the CCD light source to be adjusted, suitable for extracting images of copper foils of various sizes, realizing the detection of the integrity of the copper foil surface, and improving the product quality. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is a top view sectional view of the workbench of the present invention; Figure 3 Explosion diagram of the temperature control mechanism of the present invention; Figure 4 Front sectional view of the structure schematic temperature control mechanism of the present invention; Figure 5 is Figure 3 Enlarged view at position A in Figure 6 Structure schematic diagram of the image extraction mechanism of the present invention; Figure 7 Explosion diagram of the braking assembly of the present invention.

[0014] In the figure: 1, workbench; 2, support legs; 3, heating plate; 4, temperature control mechanism; 5, image extraction mechanism; 6, vertical plate; 7, controller; 8, multimeter; 9, alarm lamp; 41, storage box; 42, expansion body; 43, piston cylinder; 44, piston; 45, piston rod; 46, terminal; 47, dust cover; 48, rotating cylinder; 49, slideway; 410, resistance strip; 411, torsion spring; 51, outer rod; 52, inner rod; 53, rack; 54, braking assembly; 55, support plate; 56, CCD camera; 57, CCD light source; 541, sleeve; 542, rotating shaft; 543, gear; 544, brake disc; 545, friction plate; 546, spring; 547, cover plate. Specific embodiments

[0015] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

[0016] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0017] Embodiment, please refer to Figures 1 - 7 , in the embodiment of the present invention, a detection device for processing low-resistance copper foil includes a workbench 1 and four support legs 2. The four support legs 2 are respectively fixedly connected to the four corners of the lower surface of the workbench 1. A heating plate 3 is embedded inside the workbench 1. The heating plate 3 is energized to generate heat, which plays a heating role for the workbench 1. A temperature control mechanism 4 and an image extraction mechanism 5 are respectively installed at the left and right ends of the upper surface of the workbench 1. A vertical plate 6 is vertically installed in the middle of the rear side of the upper surface of the workbench 1. A controller 7 and a multimeter 8 are respectively installed at the upper and lower ends of the front surface of the vertical plate 6, and the controller 7 is electrically connected to the multimeter 8. An alarm lamp 9 electrically connected to the controller 7 is installed on the right side of the front surface of the vertical plate 6. The controller 7 can analyze the resistance and appearance of the copper foil. If the resistance does not meet the requirements, the top alarm lamp 9 emits light to give an alarm. If there are scratches on the appearance, the bottom alarm lamp 9 emits light to give an alarm.

[0018] Further, the temperature control mechanism 4 includes a storage box 41 embedded in the left end of the upper surface of the workbench 1. The storage box 41 is made of copper metal and conducts heat with the workbench 1. The inner cavity of the storage box 41 is filled with an expansion body 42. The expansion body 42 is mercury, and the volume of the expansion body 42 is proportional to the temperature. A piston cylinder 43 is vertically installed at the center position of the top of the storage box 41. A piston 44 that can slide up and down is inserted into the inner cavity of the piston cylinder 43. When the volume of the expansion body 42 increases, it can squeeze the piston 44 to move upward. One end of a piston rod 45 is installed at the top of the piston 44, and the other end of the piston rod 45 is installed with a terminal 46 electrically connected to the heating plate 3. A dust-proof sleeve 47 is installed at the top end of the outer wall of the piston cylinder 43. A rotatable drum 48 is installed at the top of the inner cavity of the dust-proof sleeve 47 through a bearing. An inclined slideway 49 is provided on the inner wall of the drum 48. A resistance strip 410 is installed at the bottom of the inner cavity of the slideway 49. The terminal 46 is inserted into the inner cavity of the slideway 49. The bottom end of the resistance strip 410 is externally connected to a power supply. When the piston rod 45 moves upward, the terminal 46 squeezes the resistance strip 410, and the resistance of the resistance strip 410 gradually increases, and the heating of the heating plate 3 gradually decreases.

[0019] Further, the image extraction mechanism 5 includes an outer rod 51 vertically installed at the right end of the upper surface of the workbench 1. An inner rod 52 that can slide up and down is inserted into the inner cavity of the outer rod 51. The right side of the inner rod 52 is concave. A rack 53 is vertically installed on the right side wall of the inner rod 52. A braking component 54 is installed at the top of the right side wall of the outer rod 51. A support plate 55 is horizontally installed at the top end of the left side wall of the inner rod 52. A CCD camera 56 and a CCD light source 57 are respectively installed on the upper and lower surfaces of the left end of the support plate 55, and both the CCD camera 56 and the CCD light source 57 are electrically connected to the controller 7. The CCD camera 56 and the CCD light source 57 are both vertically arranged with respect to the workbench 1. The CCD light source 57 irradiates the copper foil placed on the workbench 1 to improve the clarity of the copper foil image when the CCD camera 56 takes a picture.

[0020] Further, the braking component 54 includes a sleeve 541 installed at the top of the right side wall of the outer rod 51. A rotatable rotating shaft 542 is installed at the center position of the left side wall of the sleeve 541 through a bearing. A gear 543 and a brake disc 544 are respectively installed at the left and right ends of the rotating shaft 542. The gear 543 is meshed with the rack 53. When the inner rod 52 moves up and down, the transmission between the rack 53 and the gear 543 can make the brake disc 544 rotate clockwise or counterclockwise. Friction plates 545 and springs 546 are respectively inserted into the left and right sides of the inner cavity of the sleeve 541. Grooves are provided on the inner wall of the sleeve 541 to prevent the friction plates 545 from rotating. Under the elastic force of the spring 546, the friction plates 545 are in contact with the brake disc 544 to brake the gear 543. A cover plate 547 is installed at the right end of the sleeve 541.

[0021] Working principle Step 1: The heating plate 3 heats the workbench 1, and the workbench 1 conducts heat to the storage box 41. The volume of the expansion body 42 is proportional to the temperature of the workbench 1. When the volume of the expansion body 42 increases, it squeezes the piston 44 and the terminal 46 to move upward. Since the slideway 49 is inclined, the terminal 46 makes the rotating cylinder 48 rotate clockwise by squeezing the resistance strip 410. The energized length of the resistance strip 410 becomes longer and the resistance value increases, so the power of the heating plate 3 decreases. When the temperature of the expansion body 42 drops and its volume decreases, the torsion spring 411 drives the rotating cylinder 48 to rotate counterclockwise, and makes the piston 44 move downward by squeezing the terminal 46. The energized length of the resistance strip 410 becomes shorter and the power of the heating plate 3 increases, realizing the temperature control of the workbench 1, enabling the copper foil to be measured at a standard temperature. Adjust the multimeter 8, form a closed loop by contacting the copper foil with the electric pen, and measure the resistance of the copper foil. The controller 7 analyzes the resistance. If the resistance is not within the normal resistance value range of the copper foil, the top alarm lamp 9 emits light to give an alarm, realizing the precise measurement of the copper foil resistance; Step 2: According to the surface area of the copper foil, move the inner rod 52 up or down. Under the transmission condition of the rack 53 and the gear 543, the brake disc 544 rotates clockwise or counterclockwise. At the same time, the elastic force of the spring 546 pushes the friction plate 545 to always contact the brake disc 544 to brake the inner rod 52 with the changed height. Therefore, the distance between the CCD camera 56 and the CCD light source 57 is adjusted, enabling the CCD camera 56 to extract images of copper foils with different surface areas. The controller 7 analyzes whether there are scratches on the copper foil according to the images. If the surface structure of the copper foil does not meet the usage requirements, the bottom alarm lamp 9 gives an alarm, playing a role in detecting the integrity of the copper foil surface.

[0022] The above are only the preferred embodiments of the present invention. It should be noted that for those skilled in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent.

Claims

1. A low-resistance copper foil processing detection device, comprising a workbench (1) and four support legs (2), wherein the four support legs (2) are respectively fixedly connected to the four corners of the lower surface of the workbench (1), characterized in that: The detection device for low resistance copper foil processing also includes: A heating plate (3) is embedded in the workbench (1) and heats the workbench (1) when powered on; A temperature control mechanism (4) and an image capture mechanism (5) are respectively mounted on left and right ends of the upper surface of the workbench (1); A vertical plate (6) mounted on the middle portion of the rear end of the upper surface of the workbench (1); The controller (7) and the multimeter (8) are respectively mounted on the upper and lower ends of the front face of the vertical plate (6), and the controller (7) is electrically connected to the multimeter (8), and the copper foil resistance is measured by the multimeter (8); Two warning lights (9) are installed on the right side of the front of the vertical plate (6), and the warning lights (9) are electrically connected to the controller (7); The temperature control mechanism (4) comprises: A storage box (41) embedded in the left end of the upper surface of the workbench (1); An expansion body (42) filled in the inner cavity of the storage box (41); A piston cylinder (43) is vertically mounted at the top center of the storage box (41); A piston (44) is inserted into the inner cavity of the piston cylinder (43) so as to be able to slide up and down; A piston rod (45), one end of which is mounted on the top of the piston (44); A terminal (46) is mounted on the other end of the piston rod (45), and the terminal (46) is electrically connected to the heating plate (3); A dust cover (47) mounted on the top of the outer wall of the piston cylinder (43); A rotating drum (48) is rotatably mounted on the top of the inner cavity of the dust cover (47) via a bearing; A slideway (49) is provided on the inner wall of the rotating drum (48), and the terminal (46) is plugged into the inner cavity of the slideway (49); The resistance bar (410) is installed at the top of the inner cavity of the slideway (49), and the bottom end of the resistance bar (410) is externally connected to a power source, and slides in the slideway (49) through the terminal (46) to change the resistance of the resistance bar (410); The torsion spring (411) is sleeved on the top of the rotating drum (48), and the two ends of the torsion spring (411) are respectively clamped with the top of the inner wall of the dust cover (47) and the upper surface of the rotating drum (48), so that the rotating drum (48) is driven to rotate counterclockwise under the torsion force of the torsion spring (411).

2. The low resistance copper foil processing detection device according to claim 1, characterized in that: The expansion body (42) is made of mercury.

3. A low resistance copper foil processing detection device according to claim 2, characterized in that: The slideway (49) is obliquely distributed on the inner wall of the rotating drum (48).

4. A low resistance copper foil processing detection device according to claim 3, characterized in that: The image extraction mechanism (5) comprises: An outer rod (51) is vertically mounted on the right end of the upper surface of the workbench (1); The inner rod (52) is inserted into the inner cavity of the outer rod (51) so as to be slidable up and down, and the right side wall of the inner rod (52) is concave; A rack (53) vertically mounted on the right side wall of the inner rod (52); A brake assembly (54) mounted on the top end of the right side wall of the outer rod (51); A support plate (55) is transversely mounted on the top of the left side wall of the inner rod (52); The CCD camera (56) and the CCD light source (57) are respectively mounted on the left ends of the upper and lower surfaces of the support plate (55), and the CCD camera (56) and the CCD light source (57) are both electrically connected to the controller (7).

5. A low resistance copper foil processing detection device according to claim 4, characterized in that: The directions of the CCD camera (56) and the CCD light source (57) are both perpendicular to the workbench (1).

6. A low resistance copper foil processing detection device according to claim 5, characterized in that: The brake assembly (54) comprises: A sleeve (541) is mounted on the top end of the right side wall of the outer rod (51); A rotating shaft (542) is rotatably installed laterally at the center of the left side wall of the sleeve (541) via a bearing; The gear (543) and the brake disc (544) are respectively mounted on the left and right ends of the rotating shaft (542), and the gear (543) is meshingly connected with the rack (53); The friction plate (545) and the spring (546) are both inserted into the inner cavity of the sleeve (541), and the friction plate (545) is pushed into contact with the brake disc (544) under the elastic force of the spring (546), thereby braking the gear (543); A cover plate (547) is mounted on the right end of the sleeve (541).

7. A low resistance copper foil processing detection device according to claim 6, characterized in that: The inner wall of the sleeve (541) is provided with a groove to prevent the friction plate (545) from rotating.

8. A method for detecting low-resistance copper foil processing, which is applied to a detection device for low-resistance copper foil processing as claimed in claim 7, characterized in that: The following steps are involved: Step 1: The heating plate (3) heats the workbench (1), and the workbench (1) and the storage box (41) conduct heat. The volume of the expansion body (42) is proportional to the temperature of the workbench (1). When the volume of the expansion body (42) increases, the extrusion piston (44) and the terminal (46) move upward. Since the slideway (49) is an inclined surface, the terminal (46) squeezes the resistor bar (410) to make the rotating drum (48) rotate clockwise. The energized length of the resistor bar (410) becomes longer, the resistance value increases, the power of the heating plate (3) decreases, and when the temperature of the expansion body (42) decreases, the volume decreases. The torsion spring (411) drives the rotating drum (48) to rotate counterclockwise, and the piston (44) moves downward by squeezing the terminal (46). The energized length of the resistance strip (410) becomes shorter, and the power of the heating plate (3) increases, so that the temperature of the workbench (1) can be controlled, so that the copper foil can be measured at a standard temperature. The multimeter (8) is adjusted, and a closed circuit is formed by contacting the electric pen with the copper foil to measure the resistance of the copper foil. The controller (7) analyzes the resistance. If the resistance is no longer within the normal resistance range of the copper foil, the top alarm light (9) lights up to alarm, thereby achieving accurate measurement of the resistance of the copper foil. Step 2: According to the surface area of ​​the copper foil, the inner rod (52) is moved upward or downward. Under the transmission condition of the rack (53) and the gear (543), the brake disc (544) rotates clockwise or counterclockwise. At the same time, the elastic force of the spring (546) pushes the friction plate (545) to always contact the brake disc (544), thereby braking the inner rod (52) with a changed height. Therefore, the CCD camera (56) and the CCD light source (57) are adjusted in distance so that the CCD camera (56) can extract images of copper foils with different surface areas. The controller (7) analyzes whether there are scratches on the copper foil based on the image. If the surface structure of the copper foil does not meet the use requirements, the bottom alarm light (9) alarms, thereby playing a role in detecting the integrity of the copper foil surface.

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