Film product defect detection equipment and method thereof

Abstract

The invention discloses film product defect detection equipment and a method thereof. The film product defect detection equipment comprises a transmission assembly, a marking assembly and a pressure assembly, the transmission assembly is used for carrying out detection transmission on a to-be-detected film, the marking assembly is used for carrying out real-time detection and marking positioning on physical defects on the film, and the pressure assembly is used for carrying out tensile detection on the film; the film product defect detection method comprises the following steps: S1, a preparation stage; s2, a transmission stage; s3, a defect detection marking stage; and S4, a tensile detection stage. A second electric air cylinder pushes a pressure roller to carry out tensile detection on a film, a reciprocating lead screw, a lead screw nut, a push block, a clamping block, a pressing block and other structures in the same-pressure assembly are matched with one another, synchronous small-range tensile detection can be carried out on the film in the moving process of the pressure roller, the synchronism of detection of all parts is ensured through a synchronization unit, and the detection accuracy is improved. Reliable detection data is provided for the tensile property of a film product, and the product quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a film product defect detection device and method thereof. Background Art

[0002] During the subsequent processing and transportation of metal and coated metal sheets, a protective film will be applied to the surface to prevent surface scratches and contamination. To ensure adequate protection of the metal, the performance requirements of the protective film are strict, so testing equipment is needed to test the protective film during production.

[0003] Current testing equipment, such as the protective film defect detection device and method disclosed in Chinese Patent Publication No. CN117169238B, can only generally test the tensile strength of an entire film product, failing to perform tensile testing on smaller areas of the film product. This results in incomplete and inaccurate test results. Accordingly, the present invention provides a film product defect detection device and method. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a film product defect detection device and method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A film product defect detection device and method thereof, comprising a transmission component, a marking component and a pressure component; The transmission assembly is used to transmit the film to be tested to ensure that the entire film can be tested. The transmission assembly includes an equipment base box and two fixed columns fixedly connected to the top of the equipment base box; The marking assembly is used to detect and mark the physical defects on the film in real time, and the marking assembly includes a column fixedly connected to one side of the equipment base box and a slide groove opened on the column; The pressure assembly is used to perform tensile testing on the membrane, and the pressure assembly includes a first fixing frame fixedly connected to the top of the equipment base box and a second electric cylinder fixedly arranged on the first fixing frame.

[0006] Preferably, the top of the column is fixedly connected to an upper splint, the bottom of the upper splint is fixedly provided with a laser scanner, one side of the column is fixedly connected to a first electric cylinder, one side of the driving end of the first electric cylinder is fixedly connected to a first fixed rod that is slidably connected to the slide groove, one side of the first fixed rod is fixedly connected to a lower splint, the top of the lower splint is fixedly provided with a laser receiver, and an inkjet printer is fixedly provided on the laser receiver.

[0007] Preferably, one side of the second electric cylinder driving end is fixedly connected to a second fixed rod, one side of the second fixed rod is fixedly connected to a pressure roller, and the interior of the pressure roller is provided with a pressure component for performing synchronous small-scale tensile testing on the film.

[0008] Preferably, the co-pressure assembly includes a second rotating shaft rotatably connected to the inside of the pressure roller, and three groups of pushing units are equidistantly arranged on the second rotating shaft, one group of pushing units includes two limit blocks fixedly connected to the second rotating shaft, a reciprocating screw is provided between the two limit blocks and on the outer fixed sleeve of the second rotating shaft, the outer threaded sleeve of the reciprocating screw is provided with a screw nut slidably connected to the inner wall of the pressure roller, and a push block is fixedly connected to the bottom of the screw nut, four guide rods are fixedly connected to the inside of the pressure roller and on one side close to the reciprocating screw, and the four guide rods are slidably connected to a fixed plate, and a spring is fixedly connected between the bottom of the four fixed plates and the inner wall of the pressure roller, wherein two of the fixed plates form a group, and a card block is fixedly connected between each group of the fixed plates, and three groups of through holes are opened at the bottom of the pressure roller, and each group of the through holes has two through holes, and the bottoms of the two card blocks are fixedly connected to a pressure block slidably connected to the through holes, and a synchronization unit is provided on one side of the pressure roller.

[0009] Preferably, the synchronization unit includes a gear rotatably connected to one side of the pressure roller, the gear is fixedly connected to the second rotating shaft, a second fixed frame is fixedly connected to the top of the equipment base box close to the gear, a toothed plate is fixedly connected to the inner wall of one side of the second fixed frame, and the gear extends to the inner side of the second fixed frame and meshes with the toothed plate.

[0010] Preferably, one side of the two fixed columns is rotatably connected to a first rotating shaft, and the outer sides of the two first rotating shafts are jointly sleeved with a film product. One side of one of the fixed columns is fixedly connected to a motor, and the driving end of the motor is fixedly connected to one of the first rotating shafts.

[0011] Preferably, both sides of the bottom of the push block are provided with smooth inclined surfaces, and both sides of the top of the clamping block are provided with smooth inclined surfaces, and the inclination angles between the smooth inclined surfaces of the push block and the clamping block match each other.

[0012] A method for detecting defects in a membrane product comprises the following steps: S1, preparation stage: first, the membrane product to be tested is placed on the two first rotating shafts, and the membrane product passes through the marking component and the pressure component; S2, transmission stage: starting the motor, the driving end of the motor will drive the first rotating shaft fixedly connected to it to start rotating, and as the first rotating shaft rotates, the film product will start to be transmitted; S3, defect detection marking stage; at the bottom of the upper clamp plate, the laser scanner continuously emits laser, and the laser receiver installed at the top of the lower clamp plate is responsible for receiving the laser signal, when the film product is driven through the upper clamp plate and the lower clamp plate, if there is a physical defect such as a hole, a scratch or the like on the film, the defect will have a shielding or reflecting effect on the laser emitted by the laser scanner, so that the laser signal received by the laser receiver changes, once the signal change is detected, the system will immediately determine that there is a physical defect on the film, at this time the ink jet device will quickly and accurately mark the defect position, facilitating subsequent processing and analysis of the defect; S4, tensile detection stage; during the transmission of the film product, the second electric cylinder starts to work, which drives the second fixed rod to move, so as to drive the pressure roller to press on the film product, and at the same time, the same compression assembly in the pressure roller can pass through the through hole opened at the bottom of the pressure roller to perform synchronous small-range tensile detection on the film product, so as to evaluate the tensile performance of the film product under local stress.

[0013] The present application has the following beneficial effects: 1. By setting the transmission assembly, the design of the equipment base box and the fixed column is matched with the motor driving the first rotating shaft, so that the stable rotation of the film product is realized, the whole film can be detected, the comprehensiveness and efficiency of the detection are greatly improved, and the defective products flowing into the market due to detection omission are avoided.

[0014] 2. By setting the marking assembly, the physical defects on the film can be detected in real time through the cooperative work of the laser scanner and the laser receiver, once the defect is detected, the ink jet machine can quickly mark and position, and the upper clamp plate and the lower clamp plate can adjust the distance under the drive of the first electric cylinder, so as to adapt to the detection of film products with different thicknesses, and make the defect detection and marking more accurate and flexible.

[0015] 3. By setting the pressure assembly, the second electric cylinder can be used to push the pressure roller to detect the tensile resistance of the film, and the reciprocating lead screw, the lead screw nut, the push block, the clamping block and the compression block and other structures in the same compression assembly cooperate with each other to synchronously detect the small-range tensile resistance of the film during the movement of the pressure roller, and the synchronization unit ensures the synchronization of detection of each part, so as to provide reliable detection data for the tensile resistance of the film product and protect the product quality. DETAILED DESCRIPTION

[0016] Figure 1 It is a front view structural schematic diagram of a film product defect detection equipment according to the present application; Figure 2 It is a side view structural schematic diagram of a film product defect detection equipment according to the present application; Figure 3 It is a top view structural schematic diagram of the marking assembly in the present application; Figure 4Schematic diagram of the bottom view of the marking assembly in the present invention; Figure 5 It is a structural schematic diagram of the pressure component in the present invention; Figure 6 This is a schematic diagram of the internal structure of the pressure roller in the present invention; Figure 7 Schematic diagram of the structure of the isobaric assembly in the present invention; Figure 8 for Figure 5 Schematic diagram of the enlarged structure of A in the middle.

[0017] In the figure: 1 equipment base box, 2 fixed column, 3 first rotating shaft, 4 film product, 5 motor, 6 column, 7 slide, 8 upper clamping plate, 9 laser scanner, 10 first electric cylinder, 11 first fixed rod, 12 lower clamping plate, 13 laser receiver, 14 inkjet machine, 15 first fixed frame, 16 second electric cylinder, 17 second fixed rod, 18 pressure roller, 19 second rotating shaft, 20 limit block, 21 reciprocating screw, 22 screw nut, 23 push block, 24 guide rod, 25 fixed plate, 26 spring, 27 block, 28 through hole, 29 pressure block, 30 second fixed frame, 31 gear plate, 32 gear. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example 1:

[0019] Reference Figures 1-4 , a membrane product defect detection device, comprising a transmission component, a marking component and a pressure component; The transmission assembly is used to transmit the film to be tested to ensure that the entire film can be tested. The transmission assembly includes an equipment base box 1 and two fixed columns 2 fixedly connected to the top of the equipment base box 1; The marking assembly is used to detect and mark the physical defects on the film in real time. The marking assembly includes a column 6 fixedly connected to one side of the equipment base box 1 and a slide groove 7 opened on the column 6; The pressure assembly is used to perform tensile testing on the membrane. The pressure assembly includes a first fixing frame 15 fixedly connected to the top of the equipment base box 1 and a second electric cylinder 16 fixedly arranged on the first fixing frame 15; An upper clamping plate 8 is fixedly connected to the top of the column 6, a laser scanner 9 is fixedly provided on the bottom of the upper clamping plate 8, a first electric cylinder 10 is fixedly connected to one side of the column 6, a first fixing rod 11 that is slidably connected to the chute 7 is fixedly connected to one side of the driving end of the first electric cylinder 10, a lower clamping plate 12 is fixedly provided on the top of the lower clamping plate 12, and an inkjet printer 14 is fixedly provided on the laser receiver 13; One side of each of the two fixed columns 2 is rotatably connected to a first rotating shaft 3, and the outer sides of the two first rotating shafts 3 are commonly sleeved with a film product 4. One side of one of the fixed columns 2 is fixedly connected to a motor 5, and the driving end of the motor 5 is fixedly connected to one of the first rotating shafts 3; In this embodiment, the equipment base box 1 is stably placed in the inspection work area, and the four support columns 33 at the bottom of the equipment base box 1 play a role of stable support. This design ensures that the equipment will not shake during operation, and provides a stable foundation for subsequent accurate detection. Stable support can avoid detection errors caused by equipment shaking, and ensure the accuracy and stability of the transmission component, marking component and pressure component during operation. For example, in some electronic film production companies with extremely high requirements for detection accuracy, if the equipment shakes during the detection process, it may cause deviations in laser scanning and pressure detection, thereby affecting the judgment of film product defects. The stable support structure of the equipment greatly improves the reliability of the detection results, avoids the misjudgment of defective products or the mistaken rejection of qualified products due to detection errors, and embodies the basic guarantee role of comprehensive and efficient detection of transmission; Furthermore, the motor 5 is turned on, and the motor 5 drives the first rotating shaft 3 to rotate, thereby driving the membrane product 4 to start transmission. During the transmission process, the membrane product 4 will pass through the detection areas of the marking component and the pressure component in sequence. This comprehensive transmission design ensures that the entire membrane product 4 can be detected, avoiding omissions in detection, and reflects the comprehensive and efficient detection and transmission advantages of the equipment. In actual production, the production speed of membrane products is usually fast. If the detection equipment cannot fully cover all parts of the membrane product, it is easy to cause defective products to enter the market. The transmission design of the equipment can ensure that every inch of the membrane product is strictly tested, greatly improving the ability to control product quality. Furthermore, when the film product 4 passes through the marking component, the laser scanner 9 continuously emits a laser beam to scan the surface of the film product 4. If there are physical defects on the surface of the film product 4, such as scratches, holes, etc., the reflection or refraction of the laser beam will change. The laser receiver 13 will quickly capture these changes and transmit the signal to the control unit. After receiving the signal, the control unit immediately controls the inkjet machine 14 to mark the defective position on the film product 4. At the same time, the first electric cylinder 10 can flexibly adjust the position of the lower clamp 12 according to the actual situation of the film product 4 to ensure the accuracy of detection and marking, and adapt to the detection requirements of film products of different thicknesses. The rapid marking function can detect minor defects in time and mark them to facilitate subsequent processing. The operator can repair or remove the film product according to the marked position, thereby improving the product yield and reducing production costs. In addition, for films of different thicknesses, the equipment ensures the accuracy of laser detection by adjusting the spacing between the clamps, making the detection process more flexible and reliable. Example 2:

[0020] Reference Figure 5-Figure 8 Compared with the first embodiment, in this embodiment, one side of the driving end of the second electric cylinder 16 is fixedly connected to a second fixed rod 17, and one side of the second fixed rod 17 is fixedly connected to a pressure roller 18. The interior of the pressure roller 18 is provided with a pressure component for performing synchronous small-scale tensile testing on the film.

[0021] The same pressure assembly includes a second rotating shaft 19 rotatably connected to the inside of the pressure roller 18, and three groups of pushing units are equidistantly arranged on the second rotating shaft 19. One group of pushing units includes two limit blocks 20 fixedly connected to the second rotating shaft 19, and a reciprocating screw 21 is provided between the two limit blocks 20 and located on the outer fixed sleeve of the second rotating shaft 19. The outer threaded sleeve of the reciprocating screw 21 is provided with a screw nut 22 that is slidably connected to the inner wall of the pressure roller 18, and a push block 23 is fixedly connected to the bottom of the screw nut 22. The inside of the pressure roller 18 and close to the reciprocating screw 21 is provided with a push block 23. 1 is fixedly connected to one side of the roller 18 with four guide rods 24, and each of the four guide rods 24 is slidably connected to a fixed plate 25. A spring 26 is fixedly connected between the bottom of the four fixed plates 25 and the inner wall of the pressure roller 18, wherein two fixed plates 25 form a group, and each group of fixed plates 25 is fixedly connected with a clamping block 27. The bottom of the pressure roller 18 is provided with three groups of through holes 28, and each group of through holes 28 has a total of two. The bottoms of the two clamping blocks 27 are fixedly connected to a pressure block 29 that is slidably connected to the through holes 28. A synchronization unit is provided on one side of the pressure roller 18.

[0022] The synchronization unit includes a gear 32 rotatably connected to one side of the pressure roller 18. The gear 32 is fixedly connected to the second rotating shaft 19. A second fixed frame 30 is fixedly connected to the top of the equipment base box 1 near the gear 32. A toothed plate 31 is fixedly connected to the inner wall of one side of the second fixed frame 30. The gear 32 extends to the inner side of the second fixed frame 30 and meshes with the toothed plate 31.

[0023] Both sides of the bottom of the push block 23 are provided with smooth inclined surfaces, and both sides of the top of the clamping block 27 are provided with smooth inclined surfaces. The inclination angles between the smooth inclined surfaces of the push block 23 and the clamping block 27 match each other.

[0024] In this embodiment, during the transmission of the film product 4, the second electric cylinder 16 pushes the second fixed rod 17, thereby driving the pressure roller 18 to apply pressure to the film product 4, and starting the tensile test. The pressure component inside the pressure roller 18 works, the second rotating shaft 19 rotates, and the three groups of pushing units thereon work synchronously.

[0025] Furthermore, taking a set of push units as an example, a reciprocating screw 21 between two stoppers 20 fixed to the second rotating shaft 19 rotates accordingly, causing the screw nut 22 to perform linear reciprocating motion on the reciprocating screw 21, and the push block 23 at its bottom also moves accordingly. The smooth inclined surfaces on both sides of the bottom of the push block 23 cooperate with the smooth inclined surfaces on both sides of the top of the clamping block 27. When the push block 23 moves downward, it pushes the clamping block 27 downward. The card block 27 drives the pressure block 29 connected to it to apply pressure to the membrane product 4 through the through hole 28 at the bottom of the pressure roller 18. At the same time, the synchronization unit on one side of the pressure roller 18 ensures the synchronization of the detection of each part. The gear 32 is fixedly connected to the second rotating shaft 19. During the movement of the pressure roller 18, the gear 32 engages with the tooth plate 31 in the second fixed frame 30 fixed on the top of the equipment base box 1, so that the second rotating shaft 19 rotates at a specific speed and angle, ensuring that the three groups of pushing units act in a coordinated manner, and performing synchronous and balanced small-scale tensile tests on different parts of the membrane product 4, providing reliable test data for the tensile performance of the membrane product 4, and highlighting the reliable tensile test function of the equipment.

[0026] In addition, the equipment's isobaric components and synchronous unit design can simulate the stress conditions of membrane products in different usage scenarios and detect the true tensile properties of membrane products. Manufacturers can optimize the formula and production process of membrane products based on the test results to improve the tensile strength and quality stability of the products.

[0027] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A film product defect detection device, comprising a transmission component, a marking component and a pressure component, characterized in that: The transmission assembly is used to transmit the detection to the film to be detected to ensure that the entire film can be detected. The transmission assembly includes an equipment base box (1) and two fixed columns (2) fixedly connected to the top of the equipment base box (1); The marking assembly is used for real-time detection and marking of physical defects on the film, and the marking assembly comprises a column (6) fixedly connected to one side of the equipment base box (1) and a slide groove (7) provided on the column (6); The pressure assembly is used to perform tensile testing on the membrane, and comprises a first fixed frame (15) fixedly connected to the top of the equipment base box (1) and a second electric cylinder (16) fixedly arranged on the first fixed frame (15).

2. The film product defect detection device according to claim 1, characterized in that: The top of the column (6) is fixedly connected to an upper clamping plate (8), the bottom of the upper clamping plate (8) is fixedly provided with a laser scanner (9), one side of the column (6) is fixedly connected to a first electric cylinder (10), one side of the driving end of the first electric cylinder (10) is fixedly connected to a first fixed rod (11) that is slidably connected to the slide groove (7), one side of the first fixed rod (11) is fixedly connected to a lower clamping plate (12), the top of the lower clamping plate (12) is fixedly provided with a laser receiver (13), and an inkjet printer (14) is fixedly provided on the laser receiver (13).

3. The film product defect detection device according to claim 1, characterized in that: One side of the driving end of the second electric cylinder (16) is fixedly connected to a second fixed rod (17), and one side of the second fixed rod (17) is fixedly connected to a pressure roller (18). The pressure roller (18) is provided with a pressure component for performing synchronous small-scale tensile testing on the film.

4. The film product defect detection device according to claim 3, characterized in that: The same pressure assembly includes a second rotating shaft (19) rotatably connected to the inside of the pressure roller (18), and three groups of pushing units are equidistantly arranged on the second rotating shaft (19), one group of pushing units includes two limit blocks (20) fixedly connected to the second rotating shaft (19), and a reciprocating screw (21) is provided between the two limit blocks (20) and on the outer fixed sleeve of the second rotating shaft (19), and the outer threaded sleeve of the reciprocating screw (21) is provided with a screw nut (22) slidably connected to the inner wall of the pressure roller (18), and the bottom of the screw nut (22) is fixedly connected to a push block (23), and the inner wall of the pressure roller (18) and close to the reciprocating screw (21) is provided with a push block (23). One side is fixedly connected with four guide rods (24), and the four guide rods (24) are all slidably connected with fixed plates (25). The bottoms of the four fixed plates (25) and the inner wall of the pressure roller (18) are all fixedly connected with springs (26), wherein two fixed plates (25) form a group, and each group of fixed plates (25) is fixedly connected with a clamping block (27). The bottom of the pressure roller (18) is provided with three groups of through holes (28), and each group of through holes (28) has two. The bottoms of the two clamping blocks (27) are fixedly connected with a pressure block (29) that is slidably connected with the through holes (28). A synchronization unit is provided on one side of the pressure roller (18).

5. The film product defect detection device according to claim 4, characterized in that: The synchronization unit includes a gear (32) rotatably connected to one side of the pressure roller (18), the gear (32) and the second rotating shaft (19) are fixedly connected, a second fixed frame (30) is fixedly connected to the top of the equipment base box (1) near the gear (32), a toothed plate (31) is fixedly connected to the inner wall of one side of the second fixed frame (30), and the gear (32) extends to the inner side of the second fixed frame (30) and meshes with the toothed plate (31).

6. The film product defect detection device according to claim 1, characterized in that: One side of each of the two fixed columns (2) is rotatably connected to a first rotating shaft (3), and a film product (4) is commonly sleeved on the outer sides of the two first rotating shafts (3). One side of one of the fixed columns (2) is fixedly connected to a motor (5), and a driving end of the motor (5) is fixedly connected to one of the first rotating shafts (3).

7. The film product defect detection device according to claim 4, characterized in that: Both sides of the bottom of the push block (23) are provided with smooth inclined surfaces, and both sides of the top of the clamping block (27) are provided with smooth inclined surfaces, and the inclination angles between the smooth inclined surfaces of the push block (23) and the clamping block (27) match each other.

8. A method for detecting defects in a membrane product, comprising the following steps: S1, preparation stage; first, the membrane product (4) to be tested is placed on the two first rotating shafts (3), and the membrane product (4) passes through the marking component and the pressure component; S2, transmission stage; starting the motor (5), the driving end of the motor (5) drives the first rotating shaft (3) fixedly connected thereto to start rotating, and as the first rotating shaft (3) rotates, the membrane product (4) starts to be transmitted; S3, defect detection and marking stage; at the bottom of the upper clamping plate (8), the laser scanner (9) will continuously emit lasers, and the laser receiver (13) installed on the top of the lower clamping plate (12) is responsible for receiving these laser signals. When the film product (4) passes between the upper clamping plate (8) and the lower clamping plate (12), if there are physical defects on the film, such as holes, scratches, etc., these defects will block or reflect the laser emitted by the laser scanner (9), causing the laser signal received by the laser receiver (13) to change. Once such a signal change is detected, the system will immediately determine that there is a physical defect on the film. At this time, the inkjet machine (14) will quickly and accurately mark the defect position to facilitate subsequent processing and analysis of the defect. S4, tensile testing stage; during the transmission process of the membrane product (4), the second electric cylinder (16) starts to work, which drives the second fixed rod (17) to move, thereby driving the pressure roller (18) to press on the membrane product (4). At the same time, the pressure component inside the pressure roller (18) will pass through the through hole (28) opened at the bottom of the pressure roller (18) through the pressure block (29) to perform a synchronous small-scale tensile test on the membrane product (4), so as to evaluate the tensile performance of the membrane product under local stress.

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