Method for processing non-woven fabric for environment-friendly shopping bag and film coating equipment thereof

Abstract

This invention relates to the field of nonwoven composite material manufacturing technology, and particularly to a method for processing nonwoven fabric for environmentally friendly shopping bags and its laminating equipment. The technical problem is that existing equipment often results in poor lamination effects due to insufficient adhesive or uneven adhesive application, and the presence of hard lumps in the nonwoven fabric itself also affects the lamination effect. The technical solution of this invention is: a laminating equipment for nonwoven fabric in environmentally friendly shopping bags, comprising a movable hot press roller assembly, a first mounting plate, a shifting plate, and a wiping roller; the movable hot press roller assembly is fixedly connected to the first mounting plate; the first mounting plate is connected to the shifting plate; and the shifting plate is rotatably connected to the wiping roller. This invention, through the cooperation of the shifting plate and the wiping roller with the movable hot press roller assembly, repairs poorly laminated nonwoven fabric, improves the lamination quality of the nonwoven fabric to be laminated, and thus ensures the quality of the finished environmentally friendly shopping bags.

Description

Technical Field

[0001] This invention relates to the field of nonwoven composite material manufacturing technology, and in particular to a nonwoven fabric processing method and coating equipment for environmentally friendly shopping bags. Background Technology

[0002] In the production of non-woven shopping bags, in order to improve the waterproof performance of the shopping bags, the non-woven fabric is generally required to be laminated. During the lamination process, the PE film and the non-woven fabric are bonded together with hot melt adhesive. However, due to uneven application of hot melt adhesive and insufficient adhesive during the application of adhesive to the non-woven fabric, the PE film and the non-woven fabric are not bonded tightly, which affects the quality of the non-woven fabric lamination.

[0003] Furthermore, during the production and processing of nonwoven fabrics, there are hard lumps caused by melt dripping. If the existing laminating equipment is used to directly laminate the nonwoven fabric with hard lumps, the PE film in the area with hard lumps will not be able to adhere, and the PE film around the hard lumps will not adhere tightly. In severe cases, it will also affect the subsequent laminating work of nonwoven fabrics.

[0004] Existing technologies require stopping the laminating equipment and cutting off the laminated nonwoven fabric for testing. This not only makes the testing process cumbersome but also affects the production efficiency of laminated nonwoven fabrics. Summary of the Invention

[0005] To overcome the shortcomings of nonwoven fabric lamination, such as poor lamination effect due to insufficient glue or uneven glue application, and the fact that hard lumps in the nonwoven fabric itself will also affect the lamination effect, this invention provides a nonwoven fabric processing method and lamination equipment for environmentally friendly shopping bags.

[0006] The technical solution of this invention is as follows: a non-woven fabric coating device for environmentally friendly shopping bags, comprising a mounting base, a mounting frame, a raw material conveying assembly, a finished product conveying assembly, a movable hot press roller assembly, and a cooling roller assembly; the mounting base is bolted to the center of the mounting frame; the mounting base is connected to the raw material conveying assembly, and the raw material conveying assembly has an adhesive application section; the mounting base is connected to the finished product conveying assembly; the mounting frame is connected to the movable hot press roller assembly, which can move left and right; the left side of the mounting frame is connected to the cooling roller assembly; it also includes a first mounting plate, a first motor, a toggle plate, an adhesive inlet pipe, a wiping roller, a limiting assembly, and a detection... The system includes a cutting system and a sampling system; two first vertical mounting plates are fixedly connected to the movable hot press roller assembly; a first motor is mounted on each first vertical mounting plate; the two first vertical mounting plates are rotatably connected to a toggle plate, which is fixedly connected to the output shaft of the first motor; the toggle plate has an adhesive channel, with the adhesive outlet located at the circular end of the toggle plate and the adhesive inlet located on the lower surface of the toggle plate; the adhesive inlet of the adhesive channel is connected to an adhesive inlet pipe; a wiping roller is rotatably connected to the toggle plate; the surface of the wiping roller has adsorption properties; a limit assembly is connected to the first vertical mounting plate; the raw material conveying assembly is connected to the detection and cutting system; and the finished product conveying assembly is connected to the sampling system.

[0007] More preferably, the limiting assembly includes a second motor, a second straight mounting plate, and a first limiting roller; the first straight mounting plate is fixedly connected to the second motor; the output shaft of the second motor is fixedly connected to the second straight mounting plate; the second straight mounting plate is rotatably connected to the first limiting roller; the first limiting roller is used to cooperate with the wiping roller to protect the PE film.

[0008] More preferably, the detection and cutting system includes an upper convex long plate, a second limiting roller, an L-shaped mounting plate, a bar detector, a first guide rail, a first moving block, a first push rod, a first mounting shell, a first annular cutter, a second push rod, a pressing block, a second guide rail, a second moving block, a first collecting cylinder, a first power assembly, and a toggle assembly; the upper convex long plate is fixedly connected to the raw material conveying assembly frame; the upper convex long plate is designed with a beveled surface and has a square groove; two second limiting rollers are rotatably connected to the raw material conveying assembly frame, and the two second limiting rollers are respectively located on both sides of the upper convex long plate; an L-shaped mounting plate is fixedly connected to the raw material conveying assembly frame, and the L-shaped mounting plate is located above the beveled surface; a bar detector is installed on the left side of the L-shaped mounting plate, and the bar detector... The detector points to the top of the inclined surface and is used to detect hard lumps on the nonwoven fabric to be coated; the raw material conveying component frame is connected to a first guide rail; the first guide rail is slidably connected to a first moving block; the first moving block is equipped with a first push rod; the telescopic part of the first push rod is fixedly connected to a first mounting shell; the first mounting shell is detachably connected to a first annular cutter; a second push rod is installed inside the first mounting shell; the telescopic part of the second push rod is fixedly connected to a pressing block; a second guide rail is installed on the upper left side of the upper convex long plate; the second guide rail is slidably connected to a second moving block; the second moving block is connected to a first collecting cylinder; an L-shaped mounting plate is connected to a first power component; the first power component is connected to a toggle component, and the first power component is used to drive the toggle component to move left and right and back and forth.

[0009] More preferably, the first power assembly includes a third guide rail, a third moving block, and a third push rod; the raw material conveying assembly frame is equipped with the third guide rail; the third guide rail is slidably connected to the third moving block; and the third moving block is equipped with the third push rod.

[0010] More preferably, the actuating assembly includes a connecting plate, a connecting rod, an actuating block, and a torsion spring; the connecting plate is fixedly connected to the telescopic part of the third push rod; the connecting plate is rotatably connected to two connecting rods; the actuating block is fixedly connected to the lower end of the connecting rod; a torsion spring is sleeved on the connecting rod, with one end of the torsion spring fixedly connected to the connecting rod and the other end fixedly connected to the connecting plate.

[0011] More preferably, the sampling system includes a mounting frame, a limiting plate, a fourth guide rail, a fourth moving block, a second mounting shell, a limiting cylinder, a second collecting cylinder, an electric suction cup, a second annular cutter, and a second power assembly; the mounting frame is fixedly connected to the finished product conveying assembly frame; the limiting plate is fixedly connected to the mounting frame; the fourth guide rail is mounted on the mounting frame; the fourth moving block is slidably connected to the fourth guide rail; the second mounting shell is fixedly connected to the fourth moving block; the second mounting shell is connected to the limiting cylinder; the second mounting shell is connected to the second collecting cylinder; the second power assembly is connected to the upper surface of the second mounting shell; the electric suction cup is connected to the second power assembly; the electric suction cup is detachably connected to the second annular cutter; the second power assembly is used to drive the electric suction cup and the second annular cutter to move in the left-right and up-down directions.

[0012] More preferably, the second power assembly includes a fifth guide rail, a fifth moving block, and a fourth push rod; the fifth guide rail is mounted on the upper surface of the second mounting housing; the fifth moving block is slidably connected to the fifth guide rail; the fourth push rod is mounted on the fifth moving block, and the fourth push rod is fixedly connected to the electric suction cup via a telescopic part.

[0013] More preferably, it also includes a combing scraper, with two combing scrapers connected to the front and rear of the mounting frame.

[0014] More preferably, it also includes a collection box; the collection box is detachably fixed to the lower surface of the toggle plate, the collection box has a scraping groove, and the scraping groove contacts the surface of the wiping roller.

[0015] A method for processing nonwoven fabric into eco-friendly shopping bags includes the following steps:

[0016] S1: Glue coating process: The non-woven fabric to be coated and the PE film are conveyed to the moving hot press roller group through the raw material conveying component, and the non-woven fabric to be coated is coated with glue through the glue coating section.

[0017] S3: Non-woven fabric inspection: Detect hard lumps on the non-woven fabric to be coated using a bar detector;

[0018] S4: Removal process: Remove hard lumps on the nonwoven fabric to be coated by using the first annular cutter;

[0019] S5: Hot pressing treatment: Pressing the non-woven fabric to be coated and the PE film together by moving hot pressing rollers to form a coated non-woven fabric;

[0020] S6: Repair process: Move the hot press roller group to the left to drive the agitator and wiping roller to peel off the nonwoven fabric with poor coating effect, and then move the hot press roller group to the right to repair the nonwoven fabric.

[0021] S7: Sampling and testing: Cut the coated nonwoven fabric with the second ring cutter to obtain a sample of the coated nonwoven fabric.

[0022] Beneficial effects: This invention, through the cooperation of a toggle plate and wiping roller with a moving hot press roller group, separates the non-woven fabric to be coated and the PE film on the coated non-woven fabric with poor coating effect, and then re-applies adhesive for hot pressing and lamination, thus completing the repair work of the coated non-woven fabric, improving the coating quality of the non-woven fabric to be coated, and thus ensuring the quality of the produced environmentally friendly shopping bags.

[0023] This invention utilizes a detection and cutting system to detect and remove hard lumps and fine wrinkles on the nonwoven fabric to be coated, ensuring the coating quality. Furthermore, by incorporating a sampling system into the coating process, sampling can be performed at any location on the coated nonwoven fabric, improving sampling efficiency while ensuring the reliability of the obtained samples.

[0024] When this equipment is used for testing, cutting, and sampling, only a short pause is required, without stopping the entire machine. This avoids affecting the lamination efficiency of the nonwoven fabric to be laminated. At the same time, the equipment does not need to stop heating the nonwoven fabric during operation, ensuring the lamination quality of the nonwoven fabric. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the non-woven fabric coating equipment for environmentally friendly shopping bags disclosed in this invention.

[0026] Figure 2 This is a schematic diagram of the planar structure of the non-woven fabric coating equipment for environmentally friendly shopping bags disclosed in this invention.

[0027] Figure 3 This is a partial three-dimensional structural schematic diagram of the non-woven fabric coating equipment for environmentally friendly shopping bags disclosed in this invention.

[0028] Figure 4 This is a partial three-dimensional structural schematic diagram of the non-woven fabric coating equipment for environmentally friendly shopping bags disclosed in this invention.

[0029] Figure 5 This is a schematic diagram of the third partial three-dimensional structure of the non-woven fabric coating equipment for environmentally friendly shopping bags disclosed in this invention.

[0030] Figure 6 This is a partial planar structural schematic diagram of the nonwoven fabric coating equipment for environmentally friendly shopping bags disclosed in this invention.

[0031] Figure 7 This is a three-dimensional structural diagram of the detection and cutting system disclosed in the non-woven fabric coating equipment for environmentally friendly shopping bags of the present invention.

[0032] Figure 8This is a schematic diagram of the planar structure of the detection and cutting system disclosed in the non-woven fabric coating equipment for environmentally friendly shopping bags of the present invention.

[0033] Figure 9 This is a partial three-dimensional structural diagram of the detection and cutting system disclosed in the non-woven fabric coating equipment for environmentally friendly shopping bags of the present invention.

[0034] Figure 10 This is a three-dimensional structural diagram of the actuating component in the detection and cutting system of the non-woven fabric coating equipment for environmentally friendly shopping bags disclosed in this invention.

[0035] Figure 11 This is a three-dimensional structural diagram of the sampling system disclosed in the non-woven fabric coating device for environmentally friendly shopping bags of the present invention.

[0036] Figure 12 This is a partial three-dimensional structural diagram of the detection and cutting system disclosed in the non-woven fabric coating equipment for environmentally friendly shopping bags of the present invention.

[0037] In the diagram: 1-Mounting base plate, 2-Mounting frame, 3-Raw material conveying assembly, 4-Finished product conveying assembly, 5-Moving hot press roller assembly, 6-Cooling roller assembly, 7-First straight mounting plate, 8-First motor, 9-Actuating plate, 10-Glue inlet pipe, 11-Wiping roller, 111-Second motor, 112-Second straight mounting plate, 113-First limiting roller, 121-Collection box, 122-Detection camera, 201-Upper convex long plate, 202-Second limiting roller, 203-L-shaped mounting plate, 204-Strip detector, 205-First guide rail, 206-First moving block, 207-First push rod, 208-First mounting shell, 209-First annular cutter, 2010-Second push rod, 2011-Pressing block, 2012-Second guide rail, 2 013-Second moving block, 2014-First collecting cylinder, 211-Third guide rail, 212-Third moving block, 213-Third push rod, 221-Connecting plate, 222-Connecting rod, 223-Toggle block, 224-Torsion spring, 301-Mounting bracket, 302-Limiting plate, 303-Fourth guide rail, 304-Fourth moving block, 305-Second mounting shell, 306-Limiting cylinder, 307-Second collecting cylinder, 308-Electric suction cup, 309-Second annular cutter, 3010-Card scraper, 311-Fifth guide rail, 312-Fifth moving block, 313-Fourth push rod, 3a-Glue application section, 9a-Glue channel, 201a-Beveled section, 201b-Square groove, 100-Non-woven fabric to be coated, 200-PE film. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0039] An eco-friendly shopping bag non-woven fabric coating device, such as Figure 1-6 As shown, the system includes a mounting base 1, a mounting frame 2, a raw material conveying assembly 3, a finished product conveying assembly 4, a movable hot press roller assembly 5, and a cooling roller assembly 6. The mounting base 1 is bolted to the middle of the mounting frame 2. The right side of the mounting base 1 is connected to the raw material conveying assembly 3, and the lower left side of the raw material conveying assembly 3 is provided with an adhesive coating section 3a. The raw material conveying assembly 3 is used to convey the nonwoven fabric 100 to be coated and the PE film 200, and the PE film 200 is located above the nonwoven fabric 100 to be coated. The left side of the mounting base 1 is connected to the finished product conveying assembly 4. The mounting frame 2 is connected to the movable hot press roller assembly 5, which can move left and right. The left side of the mounting frame 2 is connected to the cooling roller assembly 6.

[0040] It also includes a first mounting plate 7, a first motor 8, a shifting plate 9, an adhesive inlet tube 10, a wiping roller 11, a limiting assembly, a detection and cutting system, and a sampling system; the movable hot press roller group 5 is fixedly connected to two first mounting plates 7; the first mounting plate 7 is equipped with the first motor 8; the two first mounting plates 7 are rotatably connected to the shifting plate 9, and the shifting plate 9 is fixedly connected to the output shaft of the first motor 8; the first motor 8 drives the shifting plate 9 to rotate, thereby separating the non-woven fabric 100 and PE film 200 that have poor coating effect; the shifting plate 9 is provided with an adhesive channel 9a, through which the adhesive flows... The glue outlet of channel 9a is located at the round end of the actuating plate 9, and the glue inlet is located on the lower surface of the actuating plate 9. The glue inlet of the glue channel 9a is connected to the glue inlet pipe 10, through which hot melt glue is squeezed into the glue channel 9a, and then the glue outlet is used to re-coat the non-woven fabric 100 to be coated. A wiping roller 11 is rotatably connected above the actuating plate 9. The surface of the wiping roller 11 has adsorption properties and is used to adsorb the hot melt glue remaining on the PE film 200. The first mounting plate 7 is connected to a limit component. The frame of the raw material conveying component 3 is connected to a detection and cutting system. The frame of the finished product conveying component 4 is connected to a sampling system.

[0041] The limiting assembly includes a second motor 111, a second straight mounting plate 112, and a first limiting roller 113; the first straight mounting plate 111 is bolted to the second motor 111; the output shaft of the second motor 111 is fixedly connected to the second straight mounting plate 112; the second straight mounting plate 112 is rotatably connected to the first limiting roller 113, and the surface of the first limiting roller 113 is covered with rubber or sponge; the second motor 111 drives the first limiting roller 113 to rotate through the second straight mounting plate 112, so that the first limiting roller 113 and the wiping roller 11 form a Z-shape to limit the PE film 200, thereby preventing the PE film 200 from being stretched.

[0042] The working principle of the above embodiment 1 is as follows: First, the roll of non-woven fabric 100 to be coated and the PE film 200 are fixed on the raw material conveying assembly 3 respectively. Then, one end of the non-woven fabric 100 to be coated passes through the raw material conveying assembly 3, the moving hot press roller group 5, the cooling roller group 6 and the finished product conveying assembly 4 in sequence. It is then wound up by the external winding roller or directly conveyed to the next equipment for shopping bag production. After the non-woven fabric 100 to be coated passes through the raw material conveying assembly 3 and the moving hot press roller group 5, the moving hot press roller group 5 is controlled to press and fix the non-woven fabric 100 to be coated and the PE film 200. Then, the equipment is started to begin the coating work.

[0043] Before lamination, a detection and cutting system is used to detect and remove any hard lumps on the nonwoven fabric 100 to be laminated. Then, adhesive is applied to the surface of the nonwoven fabric 100 via the adhesive coating section 3a. Subsequently, the nonwoven fabric 100 and the PE film 200 are hot-pressed together by the moving hot-press roller group 5 to form a laminated nonwoven fabric. A sampling system is used to cut and sample the laminated nonwoven fabric to facilitate operator assessment of the lamination effect. During this process, if a poor lamination effect occurs due to insufficient adhesive or uneven application of hot melt adhesive, the raw material conveying component 3, finished product conveying component 4, moving hot-press roller group 5, and cooling roller group 6 are stopped from conveying the nonwoven fabric 100 and the PE film 200. Then, the first motor 8 is controlled to drive the actuating plate 9 to... Figure 6 In the indicated state, rotating counterclockwise from front to back causes the circular end of the actuating plate 9 to push the nonwoven fabric 100 to be coated downwards and drive the wiping roller 11 to flip upwards. At the same time, by controlling the second motor 111, the second straight mounting plate 112 and the first limiting roller 113 are rotated clockwise from front to back, so that the first limiting roller 113 presses the nonwoven fabric 100 to be coated into contact with the wiping roller 11. The first limiting roller 113 and the wiping roller 11 alternately clamp the nonwoven fabric 100 to be coated, thereby limiting the nonwoven fabric 100 to be coated and preventing it from being stretched by the moving hot pressure roller group 5.

[0044] Subsequently, the movable hot press roller assembly 5 is controlled to move to the left, thereby driving the first mounting plate 7, the first motor 8, the actuating plate 9, the glue inlet pipe 10, the wiping roller 11, and the limiting assembly to move to the left together. This allows the actuating plate 9 to continuously stretch the coated nonwoven fabric, separating the partially bonded coated nonwoven fabric 100 from the PE film 200. During this process, the wiping roller 11 continuously wipes the lower surface of the PE film 200, cleaning any residual hot melt adhesive. When the movable hot press roller assembly 5 moves forward to clamp the junction between the non-bonded coated nonwoven fabric and the normal coated nonwoven fabric, the movable hot press roller assembly 5 is controlled to start the hot pressing operation again and begin to move to the right. Meanwhile, the adhesive outlet at the round end of the control plate 9 begins to dispense adhesive, applying hot melt adhesive to the nonwoven fabric 100 to be coated, thereby re-coating the nonwoven fabric 100 with the PE film 200. After the moving hot pressure roller group 5 moves to the far right, the control plate stops the moving hot pressure roller group 5. Then, the control motor 8 drives the control plate 9 and the wiping roller 11, and the control motor 111 drives the first limit roller 113 to reset, thereby causing the control plate 9 to disengage from the nonwoven fabric 100 to be coated, and the wiping roller 11 and the first limit roller 113 to disengage from the PE film 200. Then, the control material conveying component 3 and the finished product conveying component 4 continue to convey materials and continue the coating process.

[0045] It should be noted that this equipment can control the first motor 8 to drive the actuating plate 9 and the wiping roller 11 to rotate, so that the wiping roller 11 can rotate to face forward and wipe the root of the PE film 200 and the non-woven fabric 100 to be coated, ensuring complete cleaning of the PE film 200 peeled section. Similarly, the actuating plate 9 can also rotate to face the root of the PE film 200 and the non-woven fabric 100 to be coated for applying glue, ensuring complete application of glue to the peeled section of the non-woven fabric 100 to be coated, thereby improving the coating effect of the re-coated non-woven fabric. Example 2

[0046] Based on Example 1, such as Figure 7-10As shown, the detection and cutting system includes an upper convex long plate 201, a second limiting roller 202, an L-shaped mounting plate 203, a strip detector 204, a first guide rail 205, a first moving block 206, a first push rod 207, a first mounting shell 208, a first annular cutter 209, a second push rod 2010, a pressing block 2011, a second guide rail 2012, a second moving block 2013, a first collecting cylinder 2014, a first power assembly, and a toggle assembly; the raw material conveying assembly 3 is bolted to the upper convex long plate 201; the upper right side of the upper convex long plate 201 has a beveled section 201a, and the upper left side has a square groove. 201b; The raw material conveying assembly 3 frame is rotatably connected to two second limiting rollers 202, which are located on the left and right sides of the upper convex long plate 201, respectively, for pressing the nonwoven fabric 100 to be coated onto the upper surface of the upper convex long plate 201; The raw material conveying assembly 3 frame is bolted to an L-shaped mounting plate 203, which is located above the inclined section 201a; A bar detector 204 is installed on the left side of the L-shaped mounting plate 203, pointing to the top of the inclined section 201a, for detecting hard blocks on the nonwoven fabric 100 to be coated, by the nonwoven fabric 100 to be coated passing over the inclined section. The bending point at the top of part 201a contacts and detects the location of the hard block; the frame of the raw material conveying assembly 3 is bolted to a first guide rail 205; the first guide rail 205 is slidably connected to a first moving block 206; the first moving block 206 is equipped with a first push rod 207; the telescopic part of the first push rod 207 is fixedly connected to a first mounting shell 208; the first mounting shell 208 is bolted to a first annular cutter 209, thereby allowing the first annular cutter 209 to be replaced and ensuring the sharpness of the first annular cutter 209's blade; a second push rod 2010 is installed on the inner top cover of the first mounting shell 208; the second push rod 2010 extends... A pressing block 2011 is fixedly connected to the constricted section; a second guide rail 2012 is installed on the upper convex long plate 201 through the groove opening of the square groove 201b; a second moving block 2013 is slidably connected to the second guide rail 2012; a through hole is opened in the middle of the second moving block 2013, and a first collecting cylinder 2014 is fixedly connected to its lower surface; a fan is provided inside the first collecting cylinder 2014 for adsorbing the cut non-woven fabric 100 to be coated and its scraps, thereby improving the waste collection effect; an L-shaped mounting plate 203 is connected to a first power component; the first power component is connected to a toggle component, and the first power component is used to drive the toggle component to move left and right and back and forth.

[0047] like Figure 10 As shown, the first power assembly includes a third guide rail 211, a third moving block 212, and a third push rod 213; the raw material conveying assembly 3 frame is equipped with the third guide rail 211; the third guide rail 211 is slidably connected to the third moving block 212; the third moving block 212 is equipped with the third push rod 213.

[0048] like Figure 10As shown, the actuating assembly includes a connecting plate 221, a connecting rod 222, an actuating block 223, and a torsion spring 224; the connecting plate 221 is fixedly connected to the telescopic part of the third push rod 213; a connecting rod 222 is rotatably connected to the left and right sides of the connecting plate 221 respectively; an actuating block 223 is fixedly connected to the lower end of the connecting rod 222, and the actuating block 223 on the left side twists to the left and the actuating block 223 on the right side twists to the right; a torsion spring 224 is sleeved on the connecting rod 222, and one end of the torsion spring 224 is fixedly connected to the connecting rod 222, and the other end is fixedly connected to the connecting plate 221. When the third push rod 213 pushes the actuating assembly forward, the two actuating blocks 223 cooperate to push the nonwoven fabric 100 to be coated to both sides, eliminating wrinkles.

[0049] The working principle of the above embodiment 2 is as follows: When the raw material conveying component 3 conveys the nonwoven fabric 100 to be coated, the nonwoven fabric 100 to be coated is pressed on the upper surface of the upper convex plate 201 by two second limiting rollers 202, and the nonwoven fabric 100 to be coated is tightly attached to the inclined part 201a and passes over the square groove 201b. When the nonwoven fabric 100 to be coated passes the top of the inclined part 201a, it is lifted upward, and the lifted part of the nonwoven fabric 100 to be coated comes into contact with the strip detector 204 sensor. When the hard block or fine wrinkle on the nonwoven fabric 100 to be coated is conveyed to the lifted part of the nonwoven fabric 100 to be coated, it will squeeze the strip detector 204. The strip detector 204 detects the change in force through the sensor, and then determines that there is a hard block or fine wrinkle in the lifted part of the nonwoven fabric 100 to be coated.

[0050] Subsequently, by controlling the raw material conveying component 3 and the finished product conveying component 4 to stop conveying, the third moving block 212 is controlled to move back and forth along the third guide rail 211, thereby driving the agitator to move in the back and forth direction to the right side of the part of the nonwoven fabric 100 to be coated that is lifted. Then, by controlling the third push rod 213 to drive the agitator to move to the left, so that the two agitator blocks 223 come into contact with the nonwoven fabric 100 to be coated on the surface of the inclined surface 201a and are pressed open, thereby pushing the nonwoven fabric 100 to be coated to both sides, thereby eliminating the fine wrinkles. If there are fine wrinkles in the part of the nonwoven fabric 100 to be coated that is lifted, the bar detector 204 will detect the change in force again, thereby detecting that the part of the nonwoven fabric 100 to be coated that is lifted has fine wrinkles.

[0051] If the detection result indicates the presence of minor wrinkles, since the minor wrinkles have been eliminated, the raw material conveying component 3 and the finished product conveying component 4 are directly controlled to continue conveying work to perform the lamination of the nonwoven fabric 100 to be laminated. If the detection result indicates the presence of hard lumps, the first moving block 206 is then controlled to move along the first guide rail 205, driving the first push rod 207, the first mounting shell 208, the first annular cutter 209, the second push rod 2010, and the pressing block 2011 to move in the front-back direction, thereby driving the first... A ring cutter 209 moves to the left side of the area with hard lumps on the nonwoven fabric 100 to be coated. Then, the raw material conveying assembly 3 is controlled to continue conveying the nonwoven fabric to the left until it is below the area with hard lumps on the nonwoven fabric 100 to be coated. After the first ring cutter 209 is directly facing the area with hard lumps on the nonwoven fabric 100 to be coated, the second moving block 2013 is controlled to move along the direction of the second guide rail 2012, which drives the first collecting cylinder 2014 to move in the front-back direction to the area with hard lumps on the nonwoven fabric 100 to be coated. The first mounting housing 208 and the first annular cutter 209 are positioned diagonally below the first annular cutter 209. The first push rod 207 then moves the first mounting shell 208 and the first annular cutter 209 together diagonally downwards. This causes the first annular cutter 209 to press the hardened portion of the nonwoven fabric 100 to be coated onto the second moving block 2013, cutting off the hardened portion. The second push rod 2010 then moves the pressing block 2011 to push the cut-off nonwoven fabric 100. The cut nonwoven fabric 100 to be coated is pushed into the first collection cylinder 2014 for collection. During this process, the fan in the first collection cylinder 2014 can be controlled to rotate to adsorb the cut nonwoven fabric, which not only assists in the collection of the cut nonwoven fabric 100 to be coated, but also sucks in the scraps generated during cutting. This improves the cleaning effect of the cut nonwoven fabric 100 to be coated and avoids affecting the subsequent coating work of the cut nonwoven fabric.

[0052] Afterwards, the raw material conveying component 3 and the finished product conveying component 4 are controlled to continue conveying the material and to coat the nonwoven fabric 100 to be coated. Example 3

[0053] Based on Example 2, such as Figure 11-12As shown, the sampling system includes a mounting frame 301, a limiting plate 302, a fourth guide rail 303, a fourth moving block 304, a second mounting shell 305, a limiting cylinder 306, a second collecting cylinder 307, an electric suction cup 308, a second annular cutter 309, and a second power assembly; the mounting frame 301 is fixedly connected to the frame of the finished product conveying assembly 4; the limiting plate 302 is fixedly connected to the mounting frame 301, and the limiting plate 302 is located below the coated nonwoven fabric; the fourth guide rail 303 is installed on the left side of the crossbar of the mounting frame 301; the fourth moving block 304 is slidably connected to the fourth guide rail 303; the second mounting shell 305 is fixedly connected to the fourth moving block 304; the lower right side of the second mounting shell 305 is connected to the limiting cylinder 306; the lower left side of the second mounting shell 305 is detachably screwed with the second collecting cylinder 307, and the second collecting cylinder 307 is connected to the second mounting shell 305. The second collecting cylinder 307 is made of transparent material, which facilitates operator observation; A second power assembly is connected to the upper surface of the mounting shell 305; the second power assembly is connected to an electric suction cup 308; the electric suction cup 308 is detachably fitted with a second annular cutter 309, and the cutting edge of the second annular cutter 309 is higher than the opening of the electric suction cup 308; there are two of each of the fourth moving block 304, the second mounting shell 305, the limiting cylinder 306, the second collecting cylinder 307, the electric suction cup 308, the second annular cutter 309, and the second power assembly, so that the coated nonwoven fabric can be sampled at two positions at the same time; the second power assembly is used to drive the electric suction cup 308 and the second annular cutter 309 to move in the left-right and up-down directions in the cavity formed by the second mounting shell 305, the limiting cylinder 306, and the second collecting cylinder 307, thereby driving the second annular cutter 309 to press down to cut the coated nonwoven fabric, and the cut coated nonwoven fabric is transferred to the second collecting cylinder 307 by the electric suction cup 308.

[0054] like Figure 12 As shown, the second power assembly includes a fifth guide rail 311, a fifth moving block 312, and a fourth push rod 313; the fifth guide rail 311 is mounted on the upper surface of the second mounting housing 305; the fifth guide rail 311 is slidably connected to the fifth moving block 312; the fifth moving block 312 is mounted with the fourth push rod 313, and the fourth push rod 313 is fixedly connected to the electric suction cup 308 through a telescopic part.

[0055] like Figure 11 As shown, it also includes a carding scraper 3010. The front and rear parts of the mounting frame 301 are each connected to a carding scraper 3010 by bolts, and the two carding scrapers 3010 are symmetrical to each other. They are used to card the coated nonwoven fabric and prevent the coated nonwoven fabric from curling.

[0056] like Figure 5As shown, it also includes a collection box 121; the collection box 121 is detachably fixed to the lower surface of the toggle plate 9. A scraping groove is opened at one corner of the collection box 121, and the left notch of the scraping groove contacts the surface of the wiping roller 11 for scraping off the hot melt adhesive adsorbed by the wiping roller 11.

[0057] like Figure 3 As shown, it also includes a detection camera 122; the detection camera 122 is installed on the side plate of the mounting frame 2, which is used to detect the coating effect of the coated nonwoven fabric after hot pressing and to determine whether it needs to be re-coated.

[0058] like Figure 9 As shown, a cutting pad is designed around the through hole on the upper surface of the second moving block 2013 to support the first annular cutter 209, thereby improving its cutting effect and protecting the second moving block 2013.

[0059] The actuating block 223 is made of rubber and has a bent part at the end, which can increase the contact area with the non-woven fabric 100 to be coated, thereby improving its actuating effect.

[0060] The electric suction cup 308 has a flatness detector at the lower opening, which can detect whether there are wrinkles on the surface of the coated nonwoven fabric, making it easy for manual judgment of the coating quality of the nonwoven fabric to be coated 100.

[0061] The working principle of the above embodiment 3 is as follows: After the nonwoven fabric 100 to be coated and the PE film 200 are laminated by the moving hot press roller group 5 and cooled by the cooling roller group 6 to form the coated nonwoven fabric, the sampling system performs intermittent sampling. When sampling is required, the raw material conveying component 3 and the finished product conveying component 4 are stopped first. Then, the fourth moving block 304 is controlled to move along the fourth guide rail 303, driving the second mounting shell 305, the limiting cylinder 306, the second collecting cylinder 307, the electric suction cup 308, the second annular cutter 309 and the second power component to move in the front-back direction to directly above the nonwoven fabric 100 to be sampled. Then, the fourth push rod 313 is controlled to drive the electric suction cup 308 and the second annular cutter 309 to move downward together, thereby making the electric suction cup 308 and the second annular cutter 309 move downward together. The suction cup 308 first contacts the nonwoven fabric 100 to be coated at its opening, adsorbs the nonwoven fabric 100 to be coated, and then continues to press down, pressing the nonwoven fabric 100 to be coated onto the limiting plate 302, so that the opening of the electric suction cup 308 is pressed down. Then, the second annular cutter 309 cuts off the nonwoven fabric 100 to be coated, and the cut nonwoven fabric 100 to be coated is still adsorbed by the electric suction cup 308. Then, the fourth push rod 313 is controlled to drive the electric suction cup 308 to move upward after adsorbing the cut nonwoven fabric 100 to be coated. Then, the fifth moving block 312 is controlled to move to the left along the fifth guide rail 311, driving the electric suction cup 308 to move to the left after adsorbing the cut nonwoven fabric 100 to be coated and sent into the second collection cylinder 307 for collection, completing the sampling work.

[0062] It should be noted that after the nonwoven fabric 100 to be sampled is cut off, the raw material conveying component 3 and the finished product conveying component 4 can be controlled to continue conveying and coating the nonwoven fabric 100. This allows other systems of the equipment to resume operation after only a short pause during the sampling process, thus achieving a pause-based sampling operation. This improves sampling efficiency while avoiding any impact on the coating efficiency of the nonwoven fabric 100.

[0063] A method for processing nonwoven fabric into eco-friendly shopping bags includes the following steps:

[0064] S1: Glue coating process: The non-woven fabric 100 to be coated and the PE film 200 are conveyed to the moving hot press roller group 5 through the raw material conveying component 3, and glue is applied to the non-woven fabric 100 to be coated through the glue coating section 3a.

[0065] S3: Non-woven fabric inspection: Hard lumps on the non-woven fabric 100 to be coated are detected by bar detector 204;

[0066] S4: Removal process: The hard lumps present on the non-woven fabric 100 to be coated are removed by the first annular cutter 209;

[0067] S5: Hot pressing treatment: The non-woven fabric to be coated and the PE film 200 are combined into a coated non-woven fabric by moving the hot pressing roller group 5.

[0068] S6: Repair process: Move the hot press roller group 5 to drive the agitator plate 9 and the wiping roller 11 to the left to peel off the non-woven fabric with poor coating effect, and then move the hot press roller group 5 to the right to repair the non-woven fabric.

[0069] S7: Sampling and testing: Cut the coated nonwoven fabric with the second annular cutter 309 to obtain a sample of the coated nonwoven fabric.

[0070] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A non-woven fabric laminating device for environmentally friendly shopping bags, comprising a mounting base (1), a mounting frame (2), a raw material conveying assembly (3), a finished product conveying assembly (4), a movable hot press roller assembly (5), and a cooling roller assembly (6); the mounting base (1) is bolted to the middle of the mounting frame (2); the mounting base (1) is connected to the raw material conveying assembly (3), and the raw material conveying assembly (3) is provided with an adhesive coating section (3a); the mounting base (1) is connected to the finished product conveying assembly (4); the mounting frame (2) is connected to the movable hot press roller assembly (5), which can move left and right; the left side of the mounting frame (2) is connected to the cooling roller assembly (6); characterized in that: It also includes a first mounting plate (7), a first motor (8), a toggle plate (9), a glue inlet pipe (10), a wiping roller (11), a limiting assembly, a detection and cutting system, and a sampling system; the movable hot press roller group (5) is fixedly connected to two first mounting plates (7); the first mounting plate (7) is equipped with the first motor (8); the two first mounting plates (7) are rotatably connected to the toggle plate (9), and the toggle plate (9) is fixedly connected to the output shaft of the first motor (8); the toggle plate (9) The device is equipped with an adhesive channel (9a), the outlet of which is located at the round end of the actuating plate (9), and the inlet is located on the lower surface of the actuating plate (9). The inlet of the adhesive channel (9a) is connected to an inlet pipe (10). The actuating plate (9) is rotatably connected to a wiping roller (11). The surface of the wiping roller (11) is adsorbent. The first mounting plate (7) is connected to a limit assembly. The raw material conveying assembly (3) is connected to a detection and cutting system. The finished product conveying assembly (4) is connected to a sampling system. The limiting assembly includes a second motor (111), a second straight mounting plate (112), and a first limiting roller (113); the first straight mounting plate (7) is fixedly connected to the second motor (111); the output shaft of the second motor (111) is fixedly connected to the second straight mounting plate (112); the second straight mounting plate (112) is rotatably connected to the first limiting roller (113); the first limiting roller (113) is used to cooperate with the wiping roller (11) to protect the PE film (200); The detection and cutting system includes an upper convex long plate (201), a second limiting roller (202), an L-shaped mounting plate (203), a strip detector (204), a first guide rail (205), a first moving block (206), a first push rod (207), a first mounting shell (208), a first annular cutter (209), a second push rod (2010), a pressing block (2011), a second guide rail (2012), a second moving block (2013), a first collecting cylinder (2014), a first power assembly, and a toggle assembly; a raw material conveying assembly ( 3) The frame is fixedly connected to an upper convex long plate (201); the upper convex long plate (201) is designed with a sloping part (201a) and a square groove (201b); the frame of the raw material conveying assembly (3) is rotatably connected to two second limit rollers (202), and the two second limit rollers (202) are located on both sides of the upper convex long plate (201); the frame of the raw material conveying assembly (3) is fixedly connected to an L-shaped mounting plate (203), and the L-shaped mounting plate (203) is located above the sloping part (201a); a bar detector (201b) is installed on the left side of the L-shaped mounting plate (201a). 4) The bar detector (204) points to the top of the inclined surface (201a) and is used to detect hard lumps on the nonwoven fabric (100) to be coated; the frame of the raw material conveying assembly (3) is connected to the first guide rail (205); the first guide rail (205) is slidably connected to the first moving block (206); the first moving block (206) is equipped with the first push rod (207); the telescopic part of the first push rod (207) is fixedly connected to the first mounting shell (208); the first mounting shell (208) is detachably connected to the first annular cutter (209); the first mounting shell (209) is detachably connected to the first ring cutter (209); the first mounting shell (209) is detachably connected to the first ring cutter (209); the first mounting shell (209) is detachably connected to the first ring cutter (209); ... 08) A second push rod (2010) is installed inside; a pressing block (2011) is fixedly connected to the telescopic part of the second push rod (2010); a second guide rail (2012) is installed on the upper left side of the upper convex long plate (201); a second moving block (2013) is slidably connected to the second guide rail (2012); the second moving block (2013) is connected to the first collecting cylinder (2014); an L-shaped mounting plate (203) is connected to a first power component; the first power component is connected to a toggle component, and the first power component is used to drive the toggle component to move left and right and forward and backward.

2. The non-woven fabric coating equipment for environmentally friendly shopping bags according to claim 1, characterized in that: The actuation assembly includes a connecting plate (221), a connecting rod (222), an actuating block (223), and a torsion spring (224); the telescopic part of the third push rod (213) is fixedly connected to the connecting plate (221); the connecting plate (221) is rotatably connected to two connecting rods (222); the lower end of the connecting rod (222) is fixedly connected to the actuating block (223); a torsion spring (224) is sleeved on the connecting rod (222), and one end of the torsion spring (224) is fixedly connected to the connecting rod (222), and the other end is fixedly connected to the connecting plate (221).

3. The non-woven fabric coating equipment for environmentally friendly shopping bags according to claim 2, characterized in that: The sampling system includes a mounting frame (301), a limiting plate (302), a fourth guide rail (303), a fourth moving block (304), a second mounting shell (305), a limiting cylinder (306), a second collecting cylinder (307), an electric suction cup (308), a second annular cutter (309), and a second power assembly; the finished product conveying assembly (4) has a mounting frame (301) fixedly connected to its frame; the mounting frame (301) has a limiting plate (302) fixedly connected to it; the mounting frame (301) has a fourth guide rail (303) mounted on it; the fourth guide rail (303) is slidably connected to a fourth moving block. Block (304); the fourth movable block (304) is fixedly connected to the second mounting shell (305); the second mounting shell (305) is connected to the limiting cylinder (306); the second mounting shell (305) is connected to the second collecting cylinder (307); the upper surface of the second mounting shell (305) is connected to the second power component; the second power component is connected to the electric suction cup (308); the electric suction cup (308) is detachably connected to the second annular cutter (309); the second power component is used to drive the electric suction cup (308) and the second annular cutter (309) to move in the left-right direction and the up-down direction.

4. The non-woven fabric coating equipment for environmentally friendly shopping bags according to claim 3, characterized in that: It also includes a collection box (121); the collection box (121) is detachably fixed to the lower surface of the toggle plate (9), the collection box (121) has a scraping groove, and the scraping groove is in contact with the surface of the wiping roller (11).

5. The non-woven fabric coating equipment for environmentally friendly shopping bags according to claim 4, characterized in that: It also includes a combing scraper (3010), and the mounting bracket (301) has two combing scrapers (3010) connected to the front and rear.

6. The non-woven fabric coating equipment for environmentally friendly shopping bags according to claim 5, characterized in that: It also includes a collection box (121); the collection box (121) is detachably fixed to the lower surface of the toggle plate (9), the collection box (121) has a scraping groove, and the scraping groove is in contact with the surface of the wiping roller (11).

7. The non-woven fabric coating equipment for environmentally friendly shopping bags according to claim 6, characterized in that: It also includes a detection camera (122); the detection camera (122) is installed on the side plate of the mounting frame (2).

8. A method for processing nonwoven fabric for environmentally friendly shopping bags, the method being applicable to the nonwoven fabric laminating equipment for environmentally friendly shopping bags described in claim 7, characterized in that: Includes the following steps: S1: Glue coating process: The nonwoven fabric (100) to be coated and the PE film (200) are conveyed to the moving hot press roller group (5) through the raw material conveying assembly (3), and the nonwoven fabric (100) to be coated is coated through the glue coating section (3a); S3: Nonwoven fabric inspection: Hard lumps on the nonwoven fabric (100) to be coated are detected by a bar detector (204); S4: Removal process: Remove hard lumps present on the nonwoven fabric (100) to be coated by using the first annular cutter (209); S5: Hot pressing treatment: The nonwoven fabric to be coated (100) and PE film (200) are combined into a coated nonwoven fabric by moving the hot pressing roller group (5); S6: Repair process: Move the hot press roller group (5) to drive the agitator plate (9) and the wiping roller (11) to the left to peel off the nonwoven fabric with poor coating effect, and then move the hot press roller group (5) to the right to repair the nonwoven fabric. S7: Sampling: Cut the coated nonwoven fabric with the second annular cutter (309) to obtain a sample of the coated nonwoven fabric.

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