Plastic woven bag film coating compound machine and method

Abstract

The invention relates to the technical field of compound machines, and particularly discloses a plastic woven bag film coating compound machine and method, the plastic woven bag film coating compound machine comprises a film coating compound machine, a plastic woven bag is arranged on the left side of an inner cavity of the film coating compound machine, and the plastic woven bag is in lap joint with the outer wall of the film coating compound machine; the composite film is arranged in the middle of an inner cavity of the film coating compound machine and is in lap joint with the outer wall of the film coating compound machine; the wear monitoring mechanism is arranged in the middle of the inner cavity of the coating compound machine; the finished product detection mechanism is arranged on the right side of the inner cavity of the coating compound machine. According to the device, real-time monitoring and early warning of the abrasion state of the composite rubber roller are set, the problem that the composite effect is reduced due to uneven abrasion of the composite rubber roller is effectively avoided, the bonding strength between a composite film and a woven bag is remarkably improved, the overall quality of a composite product is ensured, and meanwhile, the production efficiency is improved. And the additionally arranged finished product quality detection mechanism can detect the compounding effect in real time, so that the quality problems of poor adhesion and the like can be found in time, and the generation of unqualified products is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of compounding machines, in particular to a plastic woven bag coating compounding machine and a method. Background Art

[0002] As an important equipment in the modern packaging industry, the core function of the plastic woven bag coating and laminating machine is to closely combine the plastic woven bag with one or more layers of composite film through a specific process to improve the waterproof, moisture-proof, barrier and protective properties of the woven bag to meet the packaging needs of various items. The reason why plastic woven bags need to be coated and laminated is mainly because although the woven bag itself has the characteristics of light weight, high strength and durability, its surface is rough and has high air permeability. It is difficult to provide sufficient protection when directly used to package sensitive items or items that need to be stored for a long time. The coating and laminating technology not only enhances the sealing and barrier properties of the woven bag, but also beautifies the appearance and broadens its application field by coating one or more layers of polymer film materials on the surface of the woven bag. However, in the currently widely used plastic woven bag coating and laminating machine technology, there are some key problems that need to be solved urgently. The primary defect is the lack of an effective detection mechanism for the composite rubber roller. As the core component in the coating and laminating process, the composite rubber roller is responsible for tightly pressing the plastic woven bag and the composite film to ensure a good bonding interface between the two. Due to the rough surface of the woven bag, it will generate a large friction force when in contact with the composite rubber roller. Under long-term operation, this continuous friction will accelerate the wear of the composite rubber roller, especially when the middle of the composite rubber roller is concave due to concentrated force and the two ends are convex due to stress dispersion, the uniformity of the pressing is greatly reduced, which directly leads to a decrease in the bonding strength between the composite film and the woven bag, and the composite effect is greatly reduced. This not only affects the overall quality of the product, but may also be damaged during transportation or storage due to weak bonding, reducing the effectiveness and safety of the packaging; In addition, traditional film coating and laminating machines also neglect the immediate detection of the quality of finished products, especially the lack of finished product quality inspection agencies. During the laminating process, if the composite film and the woven bag are not fully bonded, or if improper operation, material defects and other factors lead to poor local bonding, it will directly cause a significant reduction in the composite effect. In severe cases, the composite film and the woven bag may not be bonded together at all. If such problems are not discovered and corrected in time, it will directly lead to an increase in the unqualified rate of finished products, which not only wastes material costs, but also seriously affects the company's production efficiency and customer satisfaction. What's more serious is that the outflow of unqualified products may cause immeasurable damage to the market reputation. In the long run, it poses a threat to the survival and development of the company. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art that the wear degree of the composite rubber roller cannot be monitored and a finished product detection mechanism is not provided, and a plastic woven bag coating composite machine and method are proposed.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a plastic woven bag coating and compounding machine, comprising: a coating and compounding machine; the plastic woven bag is arranged on the left side of the inner cavity of the coating and compounding machine, and the plastic woven bag is overlapped on the outer wall of the coating and compounding machine; the composite film is arranged in the middle of the inner cavity of the coating and compounding machine, and the composite film is overlapped on the outer wall of the coating and compounding machine; the wear monitoring mechanism is arranged in the middle of the inner cavity of the coating and compounding machine; the finished product detection mechanism is arranged on the right side of the inner cavity of the coating and compounding machine.

[0005] Preferably, the wear monitoring mechanism comprises: a composite rubber roller, wherein the number of the composite rubber rollers is two, and the front and rear ends of the two composite rubber rollers are rotatably arranged in the middle of the front and rear sides of the inner cavity of the film-coating compounding machine through bearings in the up-down direction, the plastic woven bag and the composite film are both located between the two composite rubber rollers, the bottom end of the plastic woven bag is in contact with the outer wall of the composite rubber roller located below, the top end of the composite film is in contact with the outer wall of the composite rubber roller located above, and the top end of the plastic woven bag is in contact with the bottom end of the composite film; the monitoring box is arranged at the bottom end of the middle of the inner cavity of the film-coating compounding machine, and the monitoring box is located below the composite rubber roller; the front and rear ends of the support rod are respectively arranged in the middle of the front and rear sides of the inner cavity of the monitoring box; the number of the levers is several, and the left parts of several levers are rotatably sleeved on the outer wall of the support rod through bearings at equal distances in the front-to-back direction; the counterweight block is arranged on the right side of the lever; the number of the first guide rods is several, and several of the first guide rods are grouped in pairs, divided into several groups, and several groups of the first guide rods are respectively arranged at the front and rear ends of the left side of several levers.

[0006] Furthermore, in order to monitor the degree of wear of the composite rubber roller, the wear monitoring mechanism includes: a slider, which is slidably sleeved on the right side of the outer wall of the first guide rod; the bottom ends of the front and rear sides of the lifting rod are rotatably arranged on the inner sides of the two sliders in each group through pins, and a first monitoring groove running through the front and rear is opened at the bottom of the front side of the lifting rod, and the top of the lifting rod can be slidably extended out of the top of the monitoring box, and the top of the lifting rod is in contact with the outer wall of the composite rubber roller located below; the roller is rotatably arranged at the top of the lifting rod, and the outer wall of the roller is in contact with the outer wall of the composite rubber roller located below; the number of the second guide rods is several, and the upper and lower ends of the several second guide rods are equidistantly arranged on the upper and lower left parts of the inner cavity of the monitoring box in the front and rear directions, and the lifting rod is slidably sleeved on the outer wall of the second guide rod.

[0007] Furthermore, in order to monitor whether the lifting rod is raised, the inner cavity of the monitoring box is also provided with: a first receiver, which is arranged at the rear side of the inner cavity of the monitoring box, and the position of the first receiver corresponds to the position of the first monitoring slot; the first infrared sensor is arranged at the front side of the inner cavity of the monitoring box, and the position of the first infrared sensor corresponds to the position of the first receiver.

[0008] Furthermore, in order to detect the degree of adhesion between the plastic woven bag and the composite film, the finished product detection mechanism includes: an air roller, the front and rear ends of the air roller are rotatably arranged on the front and rear right parts of the inner cavity of the film coating compound machine through bearings respectively, the front end of the air roller is rotatably extended out of the front side of the film coating compound machine, and the outer wall of the air roller is circumferentially provided with a plurality of air holes connected with its inner cavity, and the plastic woven bag is overlapped on the outer wall of the air roller; the high-pressure air pump is screwed to the front right part of the film coating compound machine; one end of the air pipe is arranged at the air outlet of the high-pressure air pump, and the other end of the air pipe is rotatably arranged at the front end of the air roller through a bearing, and the inner cavity of the air pipe is connected with the inner cavity of the air roller; the support plate is arranged at the top right part of the inner cavity of the film coating compound machine; the third The number of guide rods is several, and several third guide rods are grouped in pairs, and several groups of third guide rods are respectively arranged on the left and right sides of the top end of the support plate at equal distances along the front-back direction, and the bottom end of the third guide rod can be slidably extended out of the bottom end of the support plate, and the outer wall of the third guide rod is provided with a plurality of teeth at equal distances along the up-down direction; the blocking frame is arranged at the bottom end of the third guide rod; the number of the detection plates is several, and the left and right sides of several detection plates can be slidably sleeved on the outer walls of several groups of third guide rods, and a second monitoring groove running through the front and back is provided in the middle of the front top of the detection plate; the connecting frame is arranged at the top end of the third guide rod; the bottom end of the screw rod is rotatably arranged in the middle of the top end of the support plate through a bearing, and the connecting frame is screwed to the outer wall of the screw rod.

[0009] Furthermore, in order to seal the air holes at the bottom end of the outer wall of the air roller, the finished product detection mechanism also includes: a wind shield, the front and rear sides of the wind shield are respectively arranged on the front and rear right parts of the inner cavity of the coating laminating machine, and the top end of the wind shield is rotatably arranged on the bottom end of the outer wall of the air roller through a bearing.

[0010] Furthermore, in order to monitor whether the inspection plate rises, the finished product inspection mechanism also includes: a second infrared sensor, which is arranged at the front side of the top end of the shielding frame, and the position of the second infrared sensor corresponds to the position of the second monitoring slot; the second receiver is arranged at the rear side of the top end of the shielding frame, and the position of the second receiver corresponds to the position of the second infrared sensor.

[0011] Furthermore, in order to promote the synchronous lifting and lowering of several third guide rods, the finished product detection mechanism also includes: a rotating rod, the number of which is two, and the front and rear sides of the outer walls of the two rotating rods are rotatably arranged on the front and rear sides and left and right ends of the top of the support plate through bearings; the number of the gears is several, and several of the gears are equidistantly arranged on the outer walls of the two rotating rods along the front and rear directions, and are locked by top screws, the positions of the several gears correspond one by one to the positions of the several third guide rods, and the gears are meshed with teeth.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention uses a coating and laminating machine to transport, glue and reel the plastic woven bag and the composite film, and uses two composite rubber rollers to tightly press the plastic woven bag and the composite film together.

[0013] (2) The present invention can cause the lifting rod to drive the roller to tightly contact the outer wall of the composite rubber roller through the cooperation between the counterweight block, the lever, the first guide rod and the slider. When the composite rubber roller is worn to a certain extent, the lifting rod will drive the roller to move upward, thereby causing the position of the first infrared sensor and the position of the first monitoring slot to be misaligned. The lifting rod can then be used to block the infrared rays emitted by the first infrared sensor. When the first receiver cannot receive the infrared rays emitted by the first infrared sensor, the first receiver sends a signal to the central control system, thereby reminding the staff to replace and repair the composite rubber roller.

[0014] (3) The present invention uses a high-pressure air pump to transport high-pressure gas to the inner cavity of the air roller through an air pipe. The high-pressure gas in the inner cavity of the air roller can be blown to the plastic woven bag on the outer wall of the air roller through the air holes. When the plastic woven bag and the composite film are not bonded properly, the composite film above the plastic woven bag will bulge under the action of the high-pressure gas, so that the bulging composite film can push the detection plate corresponding to its position to move upward, causing the position of the second monitoring slot and the position of the second infrared sensor to be misaligned, and then the detection plate can be used to block the infrared rays emitted by the second infrared sensor. When the second receiver cannot receive the infrared rays emitted by the second infrared sensor, the second receiver sends a signal to the central control system to remind the staff to handle defective products.

[0015] (4) This device is equipped with real-time monitoring and early warning of the wear status of the composite rubber roller, which effectively avoids the problem of decreased composite effect due to uneven wear of the composite rubber roller, significantly improves the bonding strength between the composite film and the woven bag, and ensures the overall quality of the composite product. At the same time, the added finished product quality inspection mechanism can instantly detect the composite effect and promptly discover quality problems such as poor adhesion, effectively reducing the production of defective products and improving production efficiency and customer satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 An exploded view of the present invention; Figure 3 is a schematic diagram of the structure of the wear monitoring mechanism; Figure 4 It is a structural diagram of the finished product testing mechanism; Figure 5 It is a schematic diagram of the structure of the inner cavity of the monitoring box; Figure 6 An exploded view of the wear monitoring mechanism; Figure 7 This is an exploded view of the finished product testing mechanism; Figure 8 for Figure 4 A magnified image of point A; Fig. 9 Based Figure 5 A magnified view of point B; Fig.10 for Figure 6 Enlarged view of point C; Fig.11 for Figure 7 The enlarged view of point D; Fig.12 for Figure 7 The enlarged view of point E; Fig.13 for Figure 7 Enlarged view of point F.

[0018] The list of components represented by the numbers in the figure is as follows: 1. Coating laminating machine; 2. Composite film; 3. Wear monitoring mechanism; 31. Composite rubber roller; 32. Monitoring box; 33. Support rod; 34. Lever; 35. Counterweight; 36. First guide rod; 37. Slider; 38. Lifting rod; 39. First monitoring slot; 310. Roller; 311. Second guide rod; 312. First receiver; 313. First infrared sensor; 4. Finished product detection mechanism; 41. Air roller; 42. Air hole; 43. High-pressure air pump; 44. Air pipe; 45. Wind shield; 46. Support plate; 47. Third guide rod; 48. Shielding frame; 49. Second infrared sensor; 410. Second receiver; 411. Detection plate; 412. Second monitoring slot; 413. Connecting frame; 414. Screw; 415. Rotating rod; 416. Gear; 417. Teeth; 5. Plastic woven bag. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] Reference Figure 1-Figure 13 A plastic woven bag coating compound machine and method, comprising: a coating compound machine 1, a composite film 2, a wear monitoring mechanism 3, a finished product detection mechanism 4 and a plastic woven bag 5, wherein the plastic woven bag 5 is arranged on the left side of the inner cavity of the coating compound machine 1, and the plastic woven bag 5 is overlapped on the outer wall of the coating compound machine 1, and the plastic woven bag 5 is a prior art and will not be described in detail here, the composite film 2 is arranged in the middle of the inner cavity of the coating compound machine 1, and the composite film 2 is overlapped on the outer wall of the coating compound machine 1, and the composite film 2 is a prior art and will not be described in detail here, the wear monitoring mechanism 3 is arranged in the middle of the inner cavity of the coating compound machine 1, and the wear monitoring mechanism 3 is used to monitor the wear degree of the composite rubber roller 31, and the finished product detection mechanism 4 is arranged on the right side of the inner cavity of the coating compound machine 1, and the finished product detection mechanism 4 is used to detect the adhesion degree of the plastic woven bag 5 and the composite film 2.

[0022] Specifically, the wear monitoring mechanism 3 includes: a composite rubber roller 31, a monitoring box 32, a support rod 33, a lever 34, a counterweight 35, a first guide rod 36, a slider 37, a lifting rod 38, a first monitoring slot 39, a roller 310, a second guide rod 311, a first receiver 312 and a first infrared sensor 313. There are two composite rubber rollers 31. The front and rear ends of the two composite rubber rollers 31 are rotatably arranged in the middle of the front and rear sides of the inner cavity of the coating compound machine 1 through bearings in the up and down directions respectively. The plastic woven bag 5 and the composite film 2 are both located between the two composite rubber rollers 31. The bottom end of the plastic woven bag 5 is in contact with the outer wall of the composite rubber roller 31 located below, and the top end of the composite film 2 is in contact with the outer wall of the composite rubber roller 31 located above. The top of the woven bag 5 is in contact with the bottom of the composite film 2. The composite rubber roller 31 is a prior art and will not be described in detail here. The composite rubber roller 31 is used to press the plastic woven bag 5 and the composite film 2 tightly together. The monitoring box 32 is arranged at the bottom end of the middle part of the inner cavity of the coating compounding machine 1. The monitoring box 32 is located below the composite rubber roller 31. The front and rear ends of the support rod 33 are respectively arranged in the middle of the front and rear sides of the inner cavity of the monitoring box 32. The support rod 33 is used to support the lever 34. The number of levers 34 is several. The left parts of the several levers 34 are equidistantly connected to the outer wall of the support rod 33 through bearings along the front and rear directions. The lever 34 is used to drive the lifting rod 38 to move up and down. The counterweight block 35 is arranged on the right side of the lever 34. The number of the first guide rods 36 is Several, several first guide rods 36 are grouped in pairs, divided into several groups, several groups of first guide rods 36 are respectively arranged at the front and rear ends of the left side of several levers 34, the slider 37 is slidably sleeved on the right side of the outer wall of the first guide rod 36, the bottom ends of the front and rear sides of the lifting rod 38 are rotatably arranged on the inner sides of the two sliders 37 in each group through the pin shaft, the front bottom of the lifting rod 38 is provided with a first monitoring groove 39 running through the front and rear, the top of the lifting rod 38 is slidably extended out of the top of the monitoring box 32, the top of the lifting rod 38 is in contact with the outer wall of the composite rubber roller 31 located below, the roller 310 is rotatably arranged at the top of the lifting rod 38, the outer wall of the roller 310 is in contact with the outer wall of the composite rubber roller 31 located below, and the roller 310 is used to reduce In order to reduce the friction between the lifting rod 38 and the composite rubber roller 31, the number of the second guide rods 311 is several, and the upper and lower ends of the several second guide rods 311 are respectively arranged equidistantly along the front-to-back direction on the upper and lower left parts of the inner cavity of the monitoring box 32, and the lifting rod 38 can be slidably sleeved on the outer wall of the second guide rod 311, and the second guide rod 311 is used to ensure that the lifting rod 38 moves vertically up and down, and the first receiver 312 is arranged on the rear side of the inner cavity of the monitoring box 32, and the position of the first receiver 312 corresponds to the position of the first monitoring slot 39. The first receiver 312 is a prior art and will not be described in detail here. The first receiver 312 is used here to receive infrared rays emitted by the first infrared sensor 313, and the first infrared sensor 313 is arranged on the front side of the inner cavity of the monitoring box 32.The position of the first infrared sensor 313 corresponds to the position of the first receiver 312. The first infrared sensor 313 is a prior art and will not be described in detail herein. The first infrared sensor 313 is used to emit infrared rays.

[0023] Specifically, the finished product detection mechanism 4 includes: an air roller 41, an air hole 42, a high-pressure air pump 43, an air pipe 44, a windshield 45, a support plate 46, a third guide rod 47, a shielding frame 48, a second infrared sensor 49, a second receiver 410, a detection plate 411, a second monitoring slot 412, a connecting frame 413, a screw 414, a rotating rod 415, a gear 416 and a tooth 417. The front and rear ends of the air roller 41 are rotatably arranged on the front and rear right parts of the inner cavity of the coating compound machine 1 through bearings, and the front end of the air roller 41 can be rotatably extended out of the front side of the coating compound machine 1. The outer wall of the air roller 41 is provided with a plurality of air holes 42 connected to its inner cavity along the circumferential direction. The plastic woven bag 5 is overlapped on the outer wall of the air roller 41. The high-pressure air pump 43 is screwed to the coating compound machine 1. On the front right side of the machine 1, the high-pressure air pump 43 is a prior art and will not be described in detail here. The high-pressure air pump 43 is used to generate high-pressure gas and transport it to the inner cavity of the air roller 41 through the air pipe 44. One end of the air pipe 44 is arranged at the air outlet of the high-pressure air pump 43, and the other end of the air pipe 44 is rotatably arranged at the front end of the air roller 41 through a bearing. The inner cavity of the air pipe 44 is connected to the inner cavity of the air roller 41. The support plate 46 is arranged at the top right of the inner cavity of the coating compound machine 1. The number of third guide rods 47 is several, and several third guide rods 47 are grouped in pairs. Several groups of third guide rods 47 are respectively arranged equidistantly on the left and right sides of the top of the support plate 46 in the front and rear directions. The bottom end of the third guide rod 47 can slidably extend out of the bottom end of the support plate 46, and the outer wall of the third guide rod 47 A plurality of teeth 417 are provided at equal intervals in the up-and-down directions, the third guide rod 47 is used to support the detection plate 411, the shielding frame 48 is provided at the bottom end of the third guide rod 47, the shielding frame 48 is used to shield the detection plate 411, the number of the detection plates 411 is several, the left and right sides of the plurality of detection plates 411 can be slidably sleeved on the outer walls of the plurality of groups of third guide rods 47, a second monitoring groove 412 running through the front and rear is provided in the middle of the top end of the front side of the detection plate 411, the detection plate 411 is used to monitor whether the composite film 2 is bulging, the connecting frame 413 is provided at the top end of the third guide rod 47, the bottom end of the screw 414 is rotatably provided at the top middle part of the support plate 46 through a bearing, the connecting frame 413 is screwed to the outer wall of the screw 414, and the rotation generated by the rotation of the screw 414 The force can prompt the connecting frame 413 to drive the detection plate 411 to move up and down through the third guide rod 47. The front and rear sides of the windshield 45 are respectively arranged on the front and rear right sides of the inner cavity of the coating compound machine 1. The top of the windshield 45 is rotatably arranged on the bottom end of the outer wall of the air roller 41 through a bearing. The windshield 45 is used to block the air hole 42 at the bottom end of the outer wall of the air roller 41. The second infrared sensor 49 is arranged on the front side of the top of the shielding frame 48. The position of the second infrared sensor 49 corresponds to the position of the second monitoring slot 412. The second infrared sensor 49 is a prior art and will not be described in detail here. The second infrared sensor 49 is used to emit infrared rays to detect whether the detection plate 411 is bulging. The second receiver 410 is arranged on the rear side of the top of the shielding frame 48.The position of the second receiver 410 corresponds to the position of the second infrared sensor 49. The second receiver 410 is a prior art and will not be described in detail here. The second receiver 410 is used to receive infrared rays emitted by the second infrared sensor 49. There are two rotating rods 415. The front and rear sides of the outer walls of the two rotating rods 415 are rotatably arranged on the front and rear sides and left and right ends of the top of the support plate 46 through bearings. There are several gears 416. Several gears 416 are equidistantly arranged on the outer walls of the two rotating rods 415 along the front and rear directions and locked by top screws. The positions of several gears 416 correspond to the positions of several third guide rods 47 one by one. The gears 416 and the teeth 417 are meshed. The cooperation between the gears 416, the teeth 417 and the rotating rods 415 can cause several third guide rods 47 to rise and fall synchronously, thereby causing several detection plates 411 to always be in the same horizontal plane.

[0024] A plastic woven bag coating composite method specifically comprises the following steps: Step 1: When in use, the composite film 2 and the plastic woven bag 5 are transported by the film coating laminating machine 1, and the plastic woven bag 5 and the composite film 2 after being glued are tightly pressed together by two composite rubber rollers 31, and the plastic woven bag 5 is dried by the drying box provided by the film coating laminating machine 1 to ensure that the plastic woven bag 5 and the composite film 2 are tightly bonded together, and the bonded plastic woven bag 5 is tightly overlapped on the outer wall of the air roller 41, and the plastic woven bag is rolled up by the film coating laminating machine 1; Step 2, start the first receiver 312 and the first infrared sensor 313, the infrared rays emitted by the first infrared sensor 313 are irradiated onto the first receiver 312 through the first monitoring slots 39, and the first receiver 312 receives the infrared rays emitted by the first infrared sensor 313, and the roller 310 is firmly in contact with the outer wall of the composite rubber roller 31 located below under the action of the counterweight 35. When the composite rubber roller 31 is used and the composite rubber roller 31 is sunken in the middle due to wear, the distance between the concave position of the composite rubber roller 31 and the top of the monitoring box 32 will be increased, so that the right side of the lever 34 will be pressed downward under the action of the counterweight 35, thereby driving the lever 34 to move forward with the support rod 33 as the center. The lifting rod 38 rotates to cause the left side of the lever 34 to tilt upward. When the left side of the lever 34 tilts upward, the cooperation between the first guide rod 36 and the slider 37 causes the lifting rod 38 to drive the roller 310 to move upward, causing the roller 310 to always contact the outer wall of the composite rubber roller 31. When the lifting rod 38 moves upward to a suitable height, the position of the first infrared sensor 313 and the position of the first monitoring slot 39 on the outer wall of the lifting rod 38 are misaligned, so that the lifting rod 38 is used to block the infrared rays emitted by the first infrared sensor 313, causing the first receiver 312 to be unable to continue to receive the infrared rays emitted by the first infrared sensor 313, so that the central control system issues an alarm to remind the staff to replace and repair the composite rubber roller 31. Step 3, according to the thickness of the composite plastic woven bag 5, the screw 414 is rotated. The rotational force generated by the rotation of the screw 414 prompts the connecting frame 413 to drive the detection plate 411 to move up and down through the third guide rod 47. At the same time, the cooperation between the rotating rod 415, the gear 416 and the teeth 417 is used to prompt the third guide rods 47 to be synchronously lifted and lowered, thereby ensuring that the multiple detection plates 411 are always at the same height, until the detection plate 411 moves to a suitable distance from the top of the outer wall of the air roller 41, and the high-pressure air pump 43, the second infrared sensor 49 and the second receiver 410 are started. The high-pressure gas generated by the high-pressure air pump 43 is transported to the inner cavity of the air roller 41 through the air pipe 44, and is blown to the plastic woven bag 5 through the air hole 42. The gap is larger and the air permeability is stronger. Therefore, when the plastic woven bag 5 and the composite film 2 fail to bond properly, the composite film 2 above the initial plastic woven bag 5 will bulge under the action of the high-pressure gas blown out of the air hole 42, so that the bulging composite film 2 can push the detection plate 411 corresponding to its position to move upward along the outer wall of the third guide rod 47. The upward movement of the detection plate 411 causes the second monitoring slot 412 provided on the detection plate 411 to be misaligned with the position of the second infrared sensor 49, so that the detection plate 411 can block the infrared rays emitted by the second infrared sensor 49, so that the second receiver 410 can no longer receive the infrared rays emitted by the second infrared sensor 49, so that the central control system issues an alarm and performs defective product processing.

[0025] To sum up, the device is equipped with real-time monitoring and early warning of the wear status of the composite rubber roller, which effectively avoids the problem of decreased composite effect caused by uneven wear of the composite rubber roller, significantly improves the bonding strength between the composite film and the woven bag, and ensures the overall quality of the composite product. At the same time, the added finished product quality inspection mechanism can instantly detect the composite effect and promptly discover quality problems such as poor adhesion, effectively reducing the production of defective products and improving production efficiency and customer satisfaction.

[0026] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A plastic woven bag coating and laminating machine, characterized in that: include: Coating and laminating machine (1); A plastic woven bag (5), the plastic woven bag (5) being arranged on the left side of the inner cavity of the film coating and laminating machine (1), and the plastic woven bag (5) being overlapped with the outer wall of the film coating and laminating machine (1); A composite film (2), the composite film (2) being arranged in the middle of the inner cavity of the film coating and laminating machine (1), and the composite film (2) being overlapped with the outer wall of the film coating and laminating machine (1); A wear monitoring mechanism (3), wherein the wear monitoring mechanism (3) is arranged in the middle of the inner cavity of the coating laminating machine (1); A finished product detection mechanism (4), wherein the finished product detection mechanism (4) is arranged on the right side of the inner cavity of the film coating and laminating machine (1); The wear monitoring mechanism (3) comprises: Composite rubber rollers (31), the number of the composite rubber rollers (31) is two, the front and rear ends of the two composite rubber rollers (31) are rotatably arranged in the middle of the front and rear sides of the inner cavity of the coating composite machine (1) through bearings in the up and down directions respectively, the plastic woven bag (5) and the composite film (2) are both located between the two composite rubber rollers (31), the bottom end of the plastic woven bag (5) is in contact with the outer wall of the composite rubber roller (31) located below, the top end of the composite film (2) is in contact with the outer wall of the composite rubber roller (31) located above, and the top end of the plastic woven bag (5) is in contact with the bottom end of the composite film (2); A monitoring box (32), the monitoring box (32) being arranged at the bottom end of the middle part of the inner cavity of the film coating and laminating machine (1), the monitoring box (32) being located below the laminating rubber roller (31); A support rod (33), wherein the front and rear ends of the support rod (33) are respectively arranged in the middle of the front and rear sides of the inner cavity of the monitoring box (32); A lever (34), wherein the number of the levers (34) is a plurality, and the left portions of the plurality of levers (34) are equidistantly spaced in the front-rear direction and are rotatably sleeved on the outer wall of the support rod (33) via bearings; A counterweight (35), wherein the counterweight (35) is arranged on the right side of the lever (34); A first guide rod (36), wherein the number of the first guide rods (36) is a plurality, and the plurality of first guide rods (36) are grouped in pairs to form a plurality of groups, and the plurality of groups of first guide rods (36) are respectively arranged at the front and rear ends of the left sides of the plurality of levers (34).

2. A plastic woven bag coating and laminating machine according to claim 1, characterized in that: The wear monitoring mechanism (3) comprises: A slider (37), the slider (37) being slidably sleeved on the right side of the outer wall of the first guide rod (36); A lifting rod (38), the bottom ends of the front and rear sides of the lifting rod (38) are rotatably arranged on the inner sides of the two sliders (37) in each group through pins, the front bottom of the lifting rod (38) is provided with a first monitoring groove (39) running through the front and rear sides, the top end of the lifting rod (38) is slidably extended out of the top end of the monitoring box (32), and the top end of the lifting rod (38) is in contact with the outer wall of the composite rubber roller (31) located below; A roller (310), the roller (310) being rotatably disposed at the top end of the lifting rod (38), the outer wall of the roller (310) being in contact with the outer wall of the composite rubber roller (31) located below; The second guide rods (311) are provided in a plurality of numbers, and the upper and lower ends of the plurality of second guide rods (311) are equidistantly arranged at the upper and lower left parts of the inner cavity of the monitoring box (32) along the front-to-back direction, and the lifting rod (38) is slidably sleeved on the outer wall of the second guide rods (311).

3. A plastic woven bag coating and laminating machine according to claim 2, characterized in that: The inner cavity of the monitoring box (32) is also provided with: A first receiver (312), the first receiver (312) being arranged at the rear side of the inner cavity of the monitoring box (32), the position of the first receiver (312) corresponding to the position of the first monitoring slot (39); A first infrared sensor (313), wherein the first infrared sensor (313) is arranged at the front side of the inner cavity of the monitoring box (32), and the position of the first infrared sensor (313) corresponds to the position of the first receiver (312).

4. The plastic woven bag coating and laminating machine according to claim 3, characterized in that: The finished product detection mechanism (4) comprises: An air roller (41), wherein the front and rear ends of the air roller (41) are rotatably arranged at the front and rear right parts of the inner cavity of the film-coating compound machine (1) through bearings, respectively; the front end of the air roller (41) is rotatably extended out of the front side of the film-coating compound machine (1); the outer wall of the air roller (41) is provided with a plurality of air holes (42) connected to the inner cavity thereof along the circumferential direction; and the plastic woven bag (5) is overlapped on the outer wall of the air roller (41); A high-pressure air pump (43), the high-pressure air pump (43) being screw-connected to the front right portion of the film coating laminating machine (1); an air pipe (44), one end of the air pipe (44) being arranged at the air outlet of the high-pressure air pump (43), the other end of the air pipe (44) being rotatably arranged at the front end of the air roller (41) via a bearing, and the inner cavity of the air pipe (44) being connected to the inner cavity of the air roller (41); A support plate (46), the support plate (46) being arranged at the top right portion of the inner cavity of the film coating and laminating machine (1); A third guide rod (47), wherein the number of the third guide rods (47) is plural, and the third guide rods (47) are grouped in pairs, and the third guide rods (47) in the group are respectively arranged at equal distances along the front-back direction on the left and right sides of the top of the support plate (46), and the bottom end of the third guide rod (47) can be slidably extended out of the bottom end of the support plate (46), and the outer wall of the third guide rod (47) is provided with a plurality of teeth (417) equidistantly along the up-down direction; A shielding frame (48), wherein the shielding frame (48) is arranged at the bottom end of the third guide rod (47); A detection plate (411), wherein the number of the detection plates (411) is several, and the left and right sides of the detection plates (411) are respectively slidably sleeved on the outer walls of the several groups of third guide rods (47), and a second monitoring groove (412) penetrating from front to back is provided in the middle of the front top of the detection plate (411); A connecting frame (413), wherein the connecting frame (413) is arranged at the top end of the third guide rod (47); A screw rod (414), the bottom end of which is rotatably disposed at the middle of the top end of the support plate (46) via a bearing, and the connecting frame (413) is screwed to the outer wall of the screw rod (414).

5. The plastic woven bag coating and laminating machine according to claim 4, characterized in that: The finished product detection mechanism (4) further comprises: A windshield (45), the front and rear sides of which are respectively arranged at the front and rear right sides of the inner cavity of the film coating laminating machine (1), and the top end of the windshield (45) is rotatably arranged at the bottom end of the outer wall of the air roller (41) via a bearing.

6. The plastic woven bag coating and laminating machine according to claim 5, characterized in that: The finished product detection mechanism (4) further comprises: a second infrared sensor (49), the second infrared sensor (49) being arranged at the front side of the top end of the shielding frame (48), the position of the second infrared sensor (49) corresponding to the position of the second monitoring slot (412); A second receiver (410), the second receiver (410) is arranged at the rear side of the top end of the shielding frame (48), and the position of the second receiver (410) corresponds to the position of the second infrared sensor (49).

7. The plastic woven bag coating and laminating machine according to claim 6, characterized in that: The finished product detection mechanism (4) further comprises: Rotating rods (415), the number of the rotating rods (415) being two, and the front and rear sides of the outer walls of the two rotating rods (415) are rotatably arranged on the front and rear sides and left and right ends of the top end of the support plate (46) via bearings; Gears (416), the number of the gears (416) is several, the several gears (416) are respectively arranged on the outer walls of the two rotating rods (415) at equal distances in the front-back direction and are locked by means of top screws, the positions of the several gears (416) respectively correspond to the positions of the several third guide rods (47), and the gears (416) and the teeth (417) are meshed.

8. A method for coating and compounding a plastic woven bag, which is applied to a plastic woven bag coating and compounding machine as claimed in claim 7, specifically comprising the following steps: Step 1: during use, the composite film (2) and the plastic woven bag (5) are transported by the film coating laminating machine (1), and the plastic woven bag (5) and the composite film (2) are tightly pressed together by two composite rubber rollers (31), and the plastic woven bag (5) is dried by the drying box provided by the film coating laminating machine (1), so as to ensure that the plastic woven bag (5) and the composite film (2) are tightly bonded together, and the bonded plastic woven bag (5) is tightly overlapped on the outer wall of the air roller (41), and the plastic woven bag is rolled up by the film coating laminating machine (1); Step 2: Start the first receiver (312) and the first infrared sensor (313). The infrared rays emitted by the first infrared sensor (313) are irradiated onto the first receiver (312) through the plurality of first monitoring slots (39). The infrared rays emitted by the first infrared sensor (313) are received by the first receiver (312). Under the action of the counterweight (35), the roller (310) is urged to firmly contact the outer wall of the composite rubber roller (31) located below. When the composite rubber roller (31) is used and the composite rubber roller (31) is worn and becomes concave in the middle, the concave position of the composite rubber roller (31) increases the distance from the top of the monitoring box (32). As a result, under the action of the counterweight (35), the right side of the lever (34) is pressed downward, thereby driving the lever (34) to move around the support rod (33) as the center of the circle. The lifting rod (38) is rotated to cause the left side of the lever (34) to tilt upward. When the left side of the lever (34) tilts upward, the lifting rod (38) drives the roller (310) to move upward by utilizing the cooperation between the first guide rod (36) and the slider (37), so that the roller (310) is always in contact with the outer wall of the composite rubber roller (31). When the lifting rod (38) moves upward to a suitable height, the position of the first infrared sensor (313) is misaligned with the position of the first monitoring slot (39) on the outer wall of the lifting rod (38), so that the lifting rod (38) blocks the infrared rays emitted by the first infrared sensor (313), so that the first receiver (312) can no longer receive the infrared rays emitted by the first infrared sensor (313), and the central control system issues an alarm to remind the staff to replace and repair the composite rubber roller (31); Step 3: According to the thickness of the composite plastic woven bag (5), the screw (414) is rotated. The rotational force generated by the rotation of the screw (414) causes the connecting frame (413) to drive the detection plate (411) to move up and down through the third guide rod (47). At the same time, the cooperation between the rotating rod (415), the gear (416) and the teeth (417) causes the plurality of third guide rods (47) to be synchronously raised and lowered, thereby ensuring that the plurality of detection plates (411) are always at the same height until the detection plate (411) moves to a suitable distance from the top of the outer wall of the air roller (41). The high-pressure air pump (43), the second infrared sensor (49) and the second receiver (410) are started. The high-pressure gas generated by the high-pressure air pump (43) is transported to the inner cavity of the air roller (41) through the air pipe (44) and blown to the plastic woven bag (5) through the air hole (42). The gaps in the woven bag (5) are relatively large and the air permeability is relatively strong. When the plastic woven bag (5) and the composite film (2) are not bonded properly, the composite film (2) above the initial plastic woven bag (5) bulges under the action of the high-pressure gas blown out of the air hole (42). The bulging composite film (2) pushes the detection plate (411) corresponding to its position to move upward along the outer wall of the third guide rod (47). The upward movement of the detection plate (411) causes the second monitoring slot (412) provided on the detection plate (411) to be misaligned with the position of the second infrared sensor (49). The detection plate (411) blocks the infrared rays emitted by the second infrared sensor (49), causing the second receiver (410) to be unable to continue to receive the infrared rays emitted by the second infrared sensor (49). As a result, the central control system issues an alarm and performs defective product processing.

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