Double-sided processing and coating equipment for artificial leather and use method of double-sided processing and coating equipment

Abstract

The invention relates to the technical field of artificial leather coating, in particular to artificial leather double-sided processing and coating equipment and a using method thereof.The artificial leather double-sided processing and coating equipment comprises a coating mechanism, the coating mechanism comprises two scraping plates which are used for coating and inclined up and down, the scraping plates can reciprocate, the side walls of the scraping plates are slidably connected with fixing frames, and the fixing frames are fixedly connected with the coating mechanism; and the inner wall of one side of the fixed frame is fixedly connected with a resistance plate. Light is emitted to the surface of the artificial leather through the light emitting plate, then the light at the reflection position is detected through the light detection plate, the surface of the coated artificial leather is smooth, the uncoated area is rough, and whether coating missing exists in the coated area or not can be detected in real time through the reflection difference between the smooth surface and the rough surface. Due to the reflection difference, the detection system can accurately identify the missed coating area, the detection precision is improved, errors caused by manual detection are reduced, problems are prevented from being found in the follow-up inspection step, and the downtime of a production line is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of artificial leather coating, and in particular to an artificial leather double-sided processing and coating device and a use method thereof. Background Art

[0002] Artificial leather, also known as faux leather or imitation leather, is a simulated leather material made from synthetic materials such as polyvinyl chloride or polyurethane. It has a similar look and feel to natural leather, but with lower production costs and more competitive prices. With technological advances, the durability and wear resistance of artificial leather are constantly improving, while its environmental characteristics also meet the requirements of sustainable development. Due to its diverse designs and easy maintenance.

[0003] In order to improve the wear resistance, water resistance, stain resistance and tensile strength of artificial leather and extend the service life of the material, it is usually necessary to coat the artificial leather. The existing artificial leather coating usually uses a scraper to evenly coat the paint on the upper and lower surfaces of the artificial leather. However, due to the long-term use of the scraper, the scraper may be accidentally damaged and have gaps, so that part of the artificial leather cannot be coated with the paint during the coating process. The existing artificial leather coating equipment cannot detect the coating condition of the artificial leather immediately after coating. Problems that occur during the coating process may only be discovered in subsequent inspection steps, which will increase the downtime of the production line and reduce production efficiency. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides an artificial leather double-sided processing and coating device and a method of using the same, which can effectively solve the problem that the prior art cannot detect the coating condition of the artificial leather immediately after coating.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides an artificial leather double-sided processing and coating device and a method for using the same, comprising: A coating mechanism, the coating mechanism comprising two scrapers inclined up and down for coating, and the two scrapers both move back and forth, the side walls of the scrapers are slidably connected to a fixed frame, the inner wall of one side of the fixed frame is fixedly connected to a resistor plate, the outer walls of the two scrapers on the opposite sides are both fixedly connected to a support plate, the outer walls of the support plates are fixedly connected to a conductive sheet that is in sliding contact with the resistor plate, the support plate is fixedly connected to an electromagnetic plate on the side facing the scraper, and the outer wall of the scraper close to the electromagnetic plate is fixedly connected to a permanent magnetic plate that magnetically repels the electromagnetic plate; The detection and marking mechanism comprises two groups of moving blocks that move back and forth, and each group of moving blocks consists of two moving blocks symmetrically arranged up and down, and the two moving blocks in each group are symmetrically and obliquely arranged with a light emitting plate and a light detection plate on opposite sides, and the light emitting plate, the light detection plate and the moving block have the same inclination angle, and the detection and marking mechanism also comprises a marking component, which is used to mark defects after the artificial leather is inspected.

[0006] Preferably, it also includes an operating frame, the bottom end of the operating frame is fixedly connected to an operating plate, the inner wall of one side of the operating frame is fixedly connected to a first connecting plate, the inner bottom wall of the operating frame is fixedly connected to a second connecting plate, and the inner wall of the other side of the operating frame is fixedly connected to a third connecting plate, liquid coating is poured between the first connecting plate and the second connecting plate, the outer wall of the operating frame close to the first connecting plate is fixedly connected to two symmetrical extension plates, and two symmetrical first transmission rollers are rotatably provided on opposite sides of the two extension plates, the inner wall of the operating frame is fixedly connected to a first steering roller below the horizontal plane of the first connecting plate, the inner wall of the operating frame is fixedly connected to two groups of inclined fixed blocks, two symmetrical second transmission rollers are rotatably provided between the fixed blocks in each group, and the two groups of fixed blocks are located between the first connecting plate and the second connecting plate, and two symmetrical discharge rollers are rotatably provided on the inner wall of one side of the operating frame close to the third connecting plate.

[0007] Preferably, the coating mechanism also includes a first reciprocating screw rotatably connected between the first connecting plate and the second connecting plate, a first limiting rod is fixedly connected between the first connecting plate and the second connecting plate, the outer wall of the first connecting plate is fixedly connected to a first motor for driving the first reciprocating screw to rotate, the outer wall of the first reciprocating screw is fixedly connected to a reciprocating block, and the first limiting rod slides through the reciprocating block, the top end of the reciprocating block is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to a fixed frame.

[0008] Preferably, two symmetrical elastic telescopic rods are fixedly connected to the inner walls on opposite sides of the fixed frame, the telescopic ends of the elastic telescopic rods are respectively fixedly connected to the support plates, and the conductive sheet, the resistor plate and the electromagnetic plate are electrically connected to form a control loop, the conductive sheet and the resistor plate constitute a sliding rheostat, and during the sliding process of the conductive sheet on the resistor plate toward the electromagnetic plate below, the resistance of the sliding rheostat in the control loop gradually decreases.

[0009] Preferably, it also includes a drying mechanism, which includes a third transmission roller rotatably arranged on the inner wall of the operating frame, three second steering rollers are rotatably arranged on the inner wall of the operating frame, and the third transmission roller and the three second rotating rollers are U-shaped, and two heating plates are fixedly connected to the inner wall of the operating frame.

[0010] Preferably, the detection marking mechanism also includes a vertical plate fixedly connected to the bottom wall of the operating frame, two second reciprocating screws are rotatably arranged between the vertical plate and the third connecting plate, and the two second reciprocating screws are fixedly connected, the outer wall of the third connecting plate is fixedly connected with a second motor for driving the second reciprocating screw, a second limit rod is fixedly connected between the vertical plate and the third connecting plate, the two moving blocks at the bottom are respectively sleeved on the outer walls of the second reciprocating screw, and the second limit rod slides through the two moving blocks, the outer walls of the two moving blocks are fixedly connected with support rods, a sliding groove is provided at the top of the operating frame, and the tops of the two moving blocks at the top are fixedly connected with sliding blocks slidably connected to the sliding grooves, and the other ends of the two support rods are respectively fixedly connected to the outer walls of the two moving blocks at the top.

[0011] Preferably, the marking assembly includes a fixed plate fixedly connected to the outer wall of one side of the two moving blocks at the bottom away from the supporting rod, the top of the fixed plate is fixedly connected to two symmetrical holding shells and two symmetrical marking shells, the inner bottom walls of the two marking shells are fixedly connected to the first electric telescopic rod, the telescopic end of the first electric telescopic rod is fixedly connected to the push plate, and a plurality of stacked marking plates are placed on the top of the push plate, the inner walls of the two holding shells are fixedly connected to the second electric telescopic rod, the telescopic end of the second electric telescopic rod is fixedly connected to the sliding frame, the inner wall of the sliding frame is slidably connected to the adjusting block, the bottom end of the adjusting block is fixedly connected to the smear brush, the inner walls on both sides of the holding shell are provided with limiting grooves, the outer walls on both sides of the smear brush are fixedly connected to the sliding rods that are in sliding contact with the limiting grooves, the holding shell is filled with liquid glue, the light emitting board and the light detection board are electrically connected to the PLC controller by signal to form a detection circuit, and the PLC controller is electrically connected to the first motor, the second motor, the first electric telescopic rod, the second electric telescopic rod and the marking circuit.

[0012] A double-sided processing and coating method for artificial leather comprises the following steps: S1. First, the artificial leather is placed in the operation frame; S2, starting the coating mechanism to coat the artificial leather; S3, starting the drying mechanism to dry the coated artificial leather; S4, then the coating condition of the artificial leather is detected by the marking detection mechanism, and when it is detected that a part of the artificial leather is not coated, the marking component marks the area.

[0013] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: 1. The light is emitted onto the surface of the artificial leather through the light emitting board, and then the light at the reflected part is detected through the light detection board. The surface of the coated artificial leather is relatively smooth, while the uncoated area is relatively rough. By utilizing the reflection difference between the smooth surface and the rough surface, it is possible to detect in real time whether there is any missing coating in the coated area. This reflection difference enables the detection system to accurately identify the missing coating area, improves the detection accuracy, and reduces the errors of manual detection. This avoids discovering problems in subsequent inspection steps, reduces production line downtime, and improves production efficiency.

[0014] 2. When a coating leak is detected, the first electric telescopic rod and the second electric telescopic rod are automatically started through the PLC controller. First, the second electric telescopic rod pushes the coating brush to apply liquid glue to the marking plate, and then the marking plate is adhered to the coating leak area through the second electric telescopic rod. Different marking plate colors are used to distinguish the upper and lower coating leak areas, which is convenient for finding the position that needs to be re-coated later. Automatic marking can be performed immediately after the coating leak is detected, which is convenient for subsequent re-coating operations and ensures product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the detection marking mechanism of the present invention; Figure 5 It is a schematic diagram of a partial cross-sectional three-dimensional structure of the detection marking mechanism of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of a part of the fixing frame of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure of part A.

[0017] Figure numerals: 1, operating frame; 2, operating panel; 3, coating mechanism; 31, scraper; 32, fixed frame; 33, resistor plate; 34, support plate; 35, conductive sheet; 36, electromagnetic plate; 37, permanent magnet plate; 38, first reciprocating screw rod; 39, first limit rod; 310, first motor; 311, reciprocating block; 312, connecting rod; 313, elastic telescopic rod; 4, detection and marking mechanism; 41, moving block; 42, light emitting plate; 43, light detection plate; 44, marking assembly; 441, fixed plate; 442, containing shell; 443, marking shell; 444, first electric telescopic rod; 445, push Plate; 446, marking plate; 447, second electric telescopic rod; 448, sliding frame; 449, adjusting block; 4410, smear brush; 4411, limiting groove; 4412, sliding rod; 45, vertical plate; 46, second reciprocating screw rod; 47, second limiting rod; 48, supporting rod; 49, sliding groove; 410, second motor; 5, drying mechanism; 51, third transmission roller; 52, second steering roller; 53, heating plate; 6, first connecting plate; 7, second connecting plate; 8, third connecting plate; 9, extension plate; 10, first transmission roller; 11, first steering roller; 12, fixing block; 13, second transmission roller. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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 part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The present invention will be further described below in conjunction with the embodiments.

[0020] Example: Refer to Figures 1 to 7 , a double-sided processing and coating equipment for artificial leather, comprising: The upper and lower surfaces of the artificial leather are evenly coated by the coating mechanism 3. Figure 3 , Figure 6 , Figure 7 The coating mechanism 3 includes two scrapers 31 tilted up and down for coating, and the scrapers 31 can move back and forth. The side wall of the scraper 31 is slidably connected to a fixed frame 32, and the inner wall of one side of the fixed frame 32 is fixedly connected to a resistor plate 33. The outer walls of the two scrapers 31 on the opposite sides are fixedly connected to support plates 34, and the outer walls of the support plates 34 are fixedly connected to a conductive sheet 35 that is in sliding contact with the resistor plate 33. The support plate 34 is fixedly connected to an electromagnetic plate 36 on the side facing the scraper 31, and the outer wall of the scraper 31 close to the electromagnetic plate 36 is fixedly connected to a permanent magnetic plate 37 that magnetically repels the electromagnetic plate 36; Among them, the coating mechanism 3 also includes a first reciprocating screw 38 rotatably connected between the first connecting plate 6 and the second connecting plate 7, a first limiting rod 39 is fixedly connected between the first connecting plate 6 and the second connecting plate 7, the outer wall of the first connecting plate 6 is fixedly connected to a first motor 310 for driving the first reciprocating screw 38 to rotate, the outer wall of the first reciprocating screw 38 is fixedly connected to a reciprocating block 311, and the first limiting rod 39 slides through the reciprocating block 311, the top of the reciprocating block 311 is fixedly connected to a connecting rod 312, and the other end of the connecting rod 312 is fixedly connected to the fixed frame 32.

[0021] Two symmetrical elastic telescopic rods 313 are fixedly connected to the inner walls of the opposite sides of the fixed frame 32, and the telescopic ends of the elastic telescopic rods 313 are fixedly connected to the support plates 34 respectively, and the conductive sheet 35, the resistor plate 33 and the electromagnetic plate 36 are electrically connected to form a control circuit. The conductive sheet 35 and the resistor plate 33 constitute a sliding rheostat. When the conductive sheet 35 slides on the resistor plate 33 toward the electromagnetic plate 36 below, the resistance of the sliding rheostat in the control circuit gradually decreases.

[0022] The coated area is detected by the detection and marking mechanism 4, and the uncoated area is marked. Figures 1 to 5 , the detection and marking mechanism 4 includes two groups of moving blocks 41 that move back and forth, and each group of moving blocks 41 is composed of two moving blocks 41 that are symmetrically arranged up and down, and the two moving blocks 41 in each group are symmetrically and tiltedly arranged with a light emitting plate 42 and a light detection plate 43 on the opposite side, and the light emitting plate 42, the light detection plate 43 and the moving block 41 have the same inclination angle, and the detection and marking mechanism 4 also includes a marking component 44, and the marking component 44 is used to mark the defects after the artificial leather is detected. The angles between the light emitting plate 42, the light detection plate 43 and the upper surface of the moving block 41 are all 45 degrees. The reason is that under the conditions of 45-degree incident and reflection, the reflective effect of the high-gloss surface will be very obvious, because the angle between the incident light and the reflected light is small, and the light is easier to be observed. Even a low-gloss surface may have a certain degree of reflection under the conditions of 45-degree incident and reflection, but it is usually not as obvious as a high-gloss surface; The coated area is tested with the following specific structure as a reference Figures 2 to 3The detection marking mechanism 4 also includes a vertical plate 45 fixedly connected to the inner bottom wall of the operating frame 1, two second reciprocating screws 46 are rotatably arranged between the vertical plate 45 and the third connecting plate 8, and the two second reciprocating screws 46 are fixedly connected, and the outer wall of the third connecting plate 8 is fixedly connected with a second motor 410 for driving the second reciprocating screw 46, and a second limiting rod 47 is fixedly connected between the vertical plate 45 and the third connecting plate 8, and the two moving blocks 41 at the bottom are respectively sleeved on the outer walls of the second reciprocating screw 46, and the second limiting rod 47 slides through the two moving blocks 41, and the outer walls of the two moving blocks 41 are fixedly connected with support rods 48, and the top of the operating frame 1 is provided with a sliding groove 49, and the tops of the two moving blocks 41 at the top are fixedly connected with sliding blocks slidably connected to the sliding groove 49, and the other ends of the two support rods 48 are respectively fixedly connected to the outer walls of the two moving blocks 41 at the top, and the threads of the two second reciprocating screws 46 are in the same direction.

[0023] The following specific structure can be used to mark the area where coating is missed, refer to Figures 4 to 5 The marking assembly 44 includes a fixed plate 441 fixedly connected to the outer wall of one side of the two moving blocks 41 at the bottom away from the support rod 48, and the top of the fixed plate 441 is fixedly connected to two symmetrical containing shells 442 and two symmetrical marking shells 443, and the inner bottom walls of the two marking shells 443 are fixedly connected to the first electric telescopic rod 444, and the telescopic end of the first electric telescopic rod 444 is fixedly connected to the push plate 445, and a plurality of stacked marking plates 446 are placed on the top of the push plate 445, and the inner walls of the two containing shells 442 are fixedly connected to the second electric telescopic rod 447, and the telescopic end of the second electric telescopic rod 447 is fixedly connected to the sliding frame 448, and the inner wall of the sliding frame 448 is slidably connected to the adjusting block 449, and the bottom end of the adjusting block 449 is fixedly connected to the smear brush 4410, Limiting grooves 4411 are provided on the inner walls on both sides of the containing shell 442, and sliding rods 4412 that are in sliding contact with the limiting grooves 4411 are fixedly connected to the outer walls on both sides of the smear brush 4410, and liquid glue is poured into the containing shell 442. The light emitting plate 42 and the light detection plate 43 are electrically connected to the PLC controller by signals to form a detection circuit, and the PLC controller is electrically connected to the first motor 310, the second motor 410, the first electric telescopic rod 444, and the second electric telescopic rod 447 to form a marking circuit. Through preliminary testing, it can be known that the detection time of the artificial leather between the third transmission roller 51 and the discharge roller and the marking time of each time can be known, and the operating time and interval time of the winding device are pre-set according to the time, and the colors of the marking plates 446 in the two marking shells 443 are inconsistent.

[0024] It also includes an operating frame 1, an operating panel 2 is fixedly connected to the bottom end of the operating frame 1, a first connecting plate 6 is fixedly connected to the inner wall of one side of the operating frame 1, a second connecting plate 7 is fixedly connected to the inner bottom wall of the operating frame 1, a third connecting plate 8 is fixedly connected to the inner wall of the other side of the operating frame 1, liquid coating is poured between the first connecting plate 6 and the second connecting plate 7, two symmetrical extension plates 9 are fixedly connected to the outer wall of the operating frame 1 close to the first connecting plate 6, and two symmetrical first transmission rollers 10 are rotatably provided on the opposite sides of the two extension plates 9, a first steering roller 11 is fixedly connected to the inner wall of the operating frame 1 and is located below the horizontal plane of the first connecting plate 6, two groups of inclined fixed blocks 12 are fixedly connected to the inner wall of the operating frame 1, two symmetrical second transmission rollers 13 are rotatably provided between the fixed blocks 12 in each group, and the two groups of fixed blocks 12 are located between the first connecting plate 6 and the second connecting plate 7, and two symmetrical discharge rollers are rotatably provided on the inner wall of the operating frame 1 close to the third connecting plate 8.

[0025] The drying mechanism 5 includes a third transmission roller 51 rotatably arranged on the inner wall of the operating frame 1, three second steering rollers 52 are rotatably arranged on the inner wall of the operating frame 1, and the third transmission roller 51 and the three second rotating rollers are U-shaped. Two heating plates 53 are fixedly connected to the inner wall of the operating frame 1.

[0026] The working principle of the present invention is as follows: First, the artificial leather passes through the two first transmission rollers 10, and then continues to pass under the first turning roller 11, and then passes between the two sets of second transmission rollers 13, and then passes between the two scrapers 31, and then continues to pass through the third transmission roller 51, and then passes under the two second turning rollers 52 at the bottom, and then passes over the top of the second turning roller 52, and then passes through the discharge roller, and the artificial leather is wound up by the winding device. After the artificial leather passes through the first turning roller 11, the artificial leather will be fully exposed to the coating.

[0027] After passing through the scraper 31, the elastic potential energy of the elastic telescopic rod 313 enables the support plate 34 to drive the scraper 31 to contact the surface of the artificial leather. In the process of the support plate 34 driving the scraper 31 to move, the conductive sheet 35 will be driven to slide on the resistor plate 33. Therefore, the current passed into the electromagnetic plate 36 will gradually increase, and the electromagnetic plate 36 will generate a repulsive force on the permanent magnet plate 37 to achieve the effect of squeezing the support plate 34 and the scraper 31, so as to ensure the coating pressure of the scraper 31 on the artificial leather (the squeezing force on the artificial leather in the initial state represents the coating pressure, and the squeezing force is maintained by the magnetic repulsion).

[0028] Then start the first motor 310, drive the first reciprocating screw 38 to rotate through the first motor 310, and the reciprocating block 311 can be reciprocated by the limitation of the first limiting rod 39, and the reciprocating block 311 drives the connecting rod 312 and the fixed frame 32 to move synchronously, so that the scraper 31 can evenly apply the paint on the surface of the artificial leather on both sides of the artificial leather.

[0029] When the coating is completed, the reeling device reels the artificial leather according to the preset reeling time. When the reeling device reaches the preset reeling time, the reeling device will automatically stop reeling and then continue coating. Then the area after the first coating will be placed between the heating plates 53, and then heated and dried by the heating plates 53 for subsequent detection. Then the above process is repeated to detect the dried area. The specific detection method is as follows: First, the second motor 410 is started to drive the two second reciprocating screws 46 to rotate. The rotation of the two second reciprocating screws 46 and the limiting of the second limiting rod 47 can make the two moving blocks 41 move smoothly and slowly on the second reciprocating screws 46. Then, the light is emitted through the light emitting plate 42 to illuminate the surface of the artificial leather. After the artificial leather is coated, the paint on the surface of the artificial leather will reflect light. The reason is that the coated paint usually forms a relatively smooth surface, and a smooth surface is more likely to reflect light rather than scatter light. When light hits a smooth surface, it will be reflected back at a close angle to the incident angle. This phenomenon is called specular reflection. The uncoated part usually has a rough surface. This rough surface will cause the light to scatter instead of specular reflection. The scattered light will disperse in all directions, so the reflection effect will be greatly reduced. Therefore, the light emitted by the coated area and the uncoated area on the surface of the light is naturally inconsistent, and the light detection board 43 is detected by the light detection board to detect the reflected light. When the light suddenly becomes weak, it means that some areas are not coated or the coating is defective. Then, the light detection board 43 transmits the electrical signal to the PLC controller, and the second motor 410 is controlled to stop moving by the PLC controller, and then the second electric telescopic rod 447 is controlled to start by the PLC controller, and the sliding frame 448 is pushed forward by the second electric telescopic rod 447, and the smear brush 4410 is moved forward and moved upward by the limiting groove 4411, and then the marking plate 446 is smeared with liquid glue by the smear brush 4410, and then the second electric telescopic rod 447 is controlled to reset by the PLC controller, and then the first electric telescopic rod 444 is started (the first electric telescopic rod 447 is pre-set). First, set the fixed-distance extension and single mark), extend it forward through the first electric telescopic rod 444, push the push plate 445 and the marking plate 446 forward through the first electric telescopic rod 444 until the marking plate 446 is adhered to the lower surface of the artificial leather. Since there are two marking shells 443 on a fixed plate 441, when it is detected that there are areas above that are not coated and areas below that are not coated, two different marking plates 446 in marking shells 443 can be used for marking to determine whether the upper or lower area is not coated, so as to facilitate subsequent re-coating. When there are large areas that are not coated, staff are required to check the coating mechanism 3.

[0030] A method for double-sided processing and coating of artificial leather, applied to double-sided processing and coating equipment of artificial leather, comprises the following steps: S1, firstly, placing the artificial leather in the operation frame 1; S2, starting the coating mechanism 3 to coat the artificial leather; S3, starting the drying mechanism 5 to dry the coated artificial leather; S4, then the coating condition of the artificial leather is detected by the marking detection mechanism, and when it is detected that a part of the artificial leather is not coated, the marking component 44 marks the area.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-sided processing and coating equipment for artificial leather, characterized in that: include: A coating mechanism (3), the coating mechanism (3) comprising two scrapers (31) tilted up and down for coating, the two scrapers (31) both reciprocating, the side walls of the scrapers (31) being slidably connected to a fixed frame (32), one inner wall of the fixed frame (32) being fixedly connected to a resistor plate (33), the outer walls of the two scrapers (31) on opposite sides being fixedly connected to a support plate (34), the outer walls of the support plates (34) being fixedly connected to a conductive sheet (35) in sliding contact with the resistor plate (33), the side of the support plates (34) facing the scrapers (31) being fixedly connected to an electromagnetic plate (36), and the outer wall of the scrapers (31) on a side close to the electromagnetic plate (36) being fixedly connected to a permanent magnetic plate (37) that magnetically repels the electromagnetic plate (36); A detection and marking mechanism (4), the detection and marking mechanism (4) comprising two groups of moving blocks (41) that move back and forth, each group of moving blocks (41) comprising two moving blocks (41) that are symmetrically arranged up and down, a light emitting plate (42) and a light detection plate (43) being symmetrically and obliquely arranged on opposite sides of the two moving blocks (41) in each group, and the light emitting plate (42), the light detection plate (43) and the moving block (41) having the same inclination angle, the detection and marking mechanism (4) further comprising a marking component (44), the marking component (44) being used to mark defects after artificial leather is detected.

2. The artificial leather double-sided processing and coating equipment according to claim 1, characterized in that: It also comprises an operating frame (1), the bottom end of the operating frame (1) is fixedly connected to an operating plate (2), one side inner wall of the operating frame (1) is fixedly connected to a first connecting plate (6), the inner bottom wall of the operating frame (1) is fixedly connected to a second connecting plate (7), the other side inner wall of the operating frame (1) is fixedly connected to a third connecting plate (8), liquid coating is poured between the first connecting plate (6) and the second connecting plate (7), and the outer wall of the operating frame (1) close to the first connecting plate (6) is fixedly connected to two symmetrical extension plates (9), and the two extension plates (9) are rotated on opposite sides thereof. Two symmetrical first transmission rollers (10) are provided, a first steering roller (11) is fixedly connected to the inner wall of the operating frame (1) and is located below the horizontal plane of the first connecting plate (6), two groups of inclined fixed blocks (12) are fixedly connected to the inner wall of the operating frame (1), two symmetrical second transmission rollers (13) are rotatably provided between the fixed blocks (12) in each group, and the two groups of fixed blocks (12) are located between the first connecting plate (6) and the second connecting plate (7), and two symmetrical discharge rollers are rotatably provided on the inner wall of one side of the operating frame (1) close to the third connecting plate (8).

3. The artificial leather double-sided processing and coating equipment according to claim 1, characterized in that: The coating mechanism (3) further comprises a first reciprocating screw (38) rotatably connected between the first connecting plate (6) and the second connecting plate (7); a first limiting rod (39) is fixedly connected between the first connecting plate (6) and the second connecting plate (7); a first motor (310) for driving the first reciprocating screw (38) to rotate is fixedly connected to the outer wall of the first connecting plate (6); a reciprocating block (311) is fixedly connected to the outer wall of the first reciprocating screw (38); the first limiting rod (39) slides through the reciprocating block (311); a connecting rod (312) is fixedly connected to the top end of the reciprocating block (311); and the other end of the connecting rod (312) is fixedly connected to the fixed frame (32).

4. The artificial leather double-sided processing and coating equipment according to claim 1, characterized in that: Two symmetrical elastic telescopic rods (313) are fixedly connected to the inner walls of opposite sides of the fixed frame (32); the telescopic ends of the elastic telescopic rods (313) are respectively fixedly connected to the support plates (34); the conductive sheet (35), the resistor plate (33) and the electromagnetic plate (36) are electrically connected to form a control circuit; the conductive sheet (35) and the resistor plate (33) constitute a sliding rheostat; when the conductive sheet (35) slides on the resistor plate (33) toward the electromagnetic plate (36) below, the resistance of the sliding rheostat in the control circuit gradually decreases.

5. The artificial leather double-sided processing and coating equipment according to claim 1, characterized in that: It also comprises a drying mechanism (5), the drying mechanism (5) comprising a third transmission roller (51) rotatably arranged on the inner wall of the operating frame (1), three second steering rollers (52) rotatably arranged on the inner wall of the operating frame (1), and the third transmission roller (51) and the three second turning rollers are in a U shape, and two heating plates (53) are fixedly connected to the inner wall of the operating frame (1).

6. The artificial leather double-sided processing and coating equipment according to claim 1, characterized in that: The detection mark mechanism (4) further comprises a vertical plate (45) fixedly connected to the inner bottom wall of the operation frame (1); two second reciprocating screw rods (46) are rotatably arranged between the vertical plate (45) and the third connecting plate (8); the two second reciprocating screw rods (46) are fixedly connected; a second motor (410) for driving the second reciprocating screw rods (46) is fixedly connected to the outer wall of the third connecting plate (8); a second limiting rod (47) is fixedly connected between the vertical plate (45) and the third connecting plate (8); and the two reciprocating screw rods (46) at the bottom are fixedly connected to the outer wall of the third connecting plate (8). The moving blocks (41) are respectively sleeved on the outer walls of the second reciprocating screw rod (46), and the second limit rod (47) slides through the two moving blocks (41), the outer walls of the two moving blocks (41) are fixedly connected with support rods (48), the top of the operation frame (1) is provided with a sliding groove (49), the tops of the two moving blocks (41) at the top are fixedly connected with sliding blocks slidably connected to the sliding groove (49), and the other ends of the two support rods (48) are respectively fixedly connected to the outer walls of the two moving blocks (41) at the top.

7. The artificial leather double-sided processing and coating equipment according to claim 1, characterized in that: The marking assembly (44) comprises a fixing plate (441) fixedly connected to the outer wall of one side of the two moving blocks (41) located below and away from the support rod (48); the top of the fixing plate (441) is fixedly connected to two symmetrical containing shells (442) and two symmetrical marking shells (443); the inner bottom walls of the two marking shells (443) are fixedly connected to a first electric telescopic rod (444); the telescopic end of the first electric telescopic rod (444) is fixedly connected to a push plate (445); a plurality of stacked marking plates (446) are placed on the top of the push plate (445); the inner walls of the two containing shells (442) are fixedly connected to a second electric telescopic rod (447); the second electric telescopic rod ( The telescopic end of the housing (447) is fixedly connected to a sliding frame (448), the inner wall of the sliding frame (448) is slidably connected to an adjusting block (449), the bottom end of the adjusting block (449) is fixedly connected to a smear brush (4410), both inner walls of the housing (442) are provided with limiting grooves (4411), both outer walls of the housing (4410) are fixedly connected to sliding rods (4412) that are in sliding contact with the limiting grooves (4411), the housing (442) is filled with liquid glue, the light emitting board (42) and the light detection board (43) are electrically connected to a PLC controller to form a detection circuit, and the PLC controller is electrically connected to a first motor (310), a second motor (410), a first electric telescopic rod (444), and a second electric telescopic rod (447) to form a marking circuit.

8. A method for double-sided processing and coating of artificial leather, applied to the double-sided processing and coating equipment of artificial leather according to claim 7, characterized in that: The following steps are involved: S1, firstly, placing the artificial leather in the operation frame (1); S2, starting the coating mechanism (3) to coat the artificial leather; S3, starting the drying mechanism (5) to dry the coated artificial leather; S4, then the coating condition of the artificial leather is detected by the marking detection mechanism, and when it is detected that a part of the artificial leather is not coated, the marking component (44) marks the area.

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