A dry laminating machine for processing packaging materials

Abstract

This utility model discloses a dry laminating machine for processing packaging materials, relating to the field of packaging material processing technology. The utility model includes a base plate and a coated roll, the base plate serving as a substrate to support the overall device; a cleaning section mounted on top of the base plate, used for adjusting and cleaning the coated portion; and a processing section mounted on top of the base plate, used for processing the packaging material. This utility model, by incorporating an adjustment component, can drive a motor to rotate a rotating rod and a connecting plate. When the connecting plate rotates to a specified angle, a corresponding flattening roller contacts the coated surface of the coated roll, causing the flattening roller to compress the coated roll and generate pressure, thus adjusting the coating thickness according to different processing requirements, greatly improving production flexibility and product quality.

Description

Technical Field

[0001] This utility model belongs to the field of packaging material processing technology, and in particular relates to a dry laminating machine for packaging material processing. Background Technology

[0002] With economic development and improved living standards, the packaging industry continues to grow in demand. Various products are placing higher demands on packaging materials in terms of protection, quality preservation, and aesthetic appeal. Dry laminating machines, as key equipment for producing composite packaging materials, are widely used due to the unique advantages of their dry lamination process. The dry lamination process involves coating an adhesive onto the surface of one material, heating and drying it to remove the solvent, and then laminating it with another material under pressure. This process offers high lamination strength, wide adaptability, and stable product quality. It can process various materials, such as plastic films, paper, and metal foil, achieving high-precision lamination and meeting the stringent requirements of the food, pharmaceutical, and cosmetic industries for the barrier properties, flexibility, and printability of packaging materials.

[0003] However, existing dry laminating machines do not allow for easy adjustment of the adhesive coating thickness according to actual application conditions when processing packaging materials. This results in the adhesive performing poorly in different application scenarios. Either the coating is too thick, causing material waste, increased costs, and even affecting the performance of the final packaged product, such as excessive solvent residue and affecting food safety; or the coating is too thin, resulting in insufficient adhesion between the composite layers, which can easily lead to delamination, delamination, and other problems. Utility Model Content

[0004] The purpose of this invention is to provide a dry laminating machine for processing packaging materials. By incorporating an adjustment component, the thickness of the coating layer can be adjusted according to different processing requirements, greatly improving production flexibility and product quality. This solves the problem that existing dry laminating machines are not convenient for adjusting the coating thickness of the adhesive according to actual application conditions when processing packaging materials, which leads to insufficient performance of the adhesive in different application scenarios.

[0005] This utility model relates to a dry laminating machine for processing packaging materials, comprising a base plate and a coated roll material.

[0006] The base plate serves as a base to support the overall device.

[0007] A cleaning unit, mounted on top of the base plate, is used to adjust and clean the coated portion; and

[0008] A processing unit, mounted on top of the base plate, is used to process packaging materials;

[0009] The processing section coats the base roll with adhesive, dries it, and then attaches the other side of the roll to the adhesive layer to form a packaging bag and rolls it up. The cleaning section adjusts the coating thickness of the adhesive to meet different processing requirements and cleans the coated part to reduce coating thickness error.

[0010] Furthermore, the cleaning unit includes:

[0011] An adjustment component, wherein the adjustment component is disposed on one side of the coated surface of the coated roll material; and

[0012] A cleaning component, which is disposed to the left of the adjustment component;

[0013] The adjustment component adjusts the thickness of the coating layer according to different needs and completes the process. The cleaning component can then use a special cleaning solution, such as ethyl acetate, to dissolve and clean the adhesive on the adjustment parts that come into contact with the coating layer. After this process, the adjustment component can be put into use again.

[0014] Furthermore, the adjustment assembly includes a support plate 1 fixedly connected to the top surface of the base plate, a motor 1 fixedly connected to the support plate 1 located on the front side, a rotating rod 1 fixedly connected to the output end of the motor 1 via a coupling, two connecting plates fixedly connected to the outer wall of the rotating rod 1, two rotating rods 2 passing through the two connecting plates, both connecting plates and the two rotating rods 2 being rotatably connected, two gears fixedly connected to the outer wall of each of the two rotating rods 2, two toothed rings fixedly connected to the top surface of the base plate, four gears meshing with the two toothed rings respectively, a leveling roller fixedly connected to the outer wall of each of the two rotating rods 2, both leveling rollers contacting the coating surface of the coating roll, a support plate 2 fixedly connected to the top surface of the base plate, and the rotating rod 1 passing through the support plate 2 and being rotatably connected to the support plate 2.

[0015] The drive motor drives the rotating rod and the connecting plate to rotate, which in turn drives the two rotating rods to revolve around the rotating rod. The gear and the gear ring cooperate with each other. During the revolution, the rotating rod drives the two flattening rollers to rotate. Different positions on the curved surface of the flattening rollers come into contact with the coating surface of the coated roll. The angle between the flattening roller and the coated roll can be adjusted when the coating is thicker or thinner, thereby providing different coating pressures and adjusting the coating thickness of the coated roll.

[0016] Furthermore, the cleaning assembly includes a liquid storage tank fixedly connected to the top surface of the base plate. The top surface of the liquid storage tank is connected to a liquid inlet. A fixing frame is fixedly connected to the top surface of the liquid storage tank. A liquid pump is fixedly connected to the top surface of the liquid storage tank. Both the output end and the input end of the liquid pump are fixedly connected to conduits. One end of the conduit away from the input end of the liquid pump extends into the interior of the liquid storage tank. The other end of the conduit away from the output end of the liquid pump extends into the interior of the fixing frame and is fixedly connected to the fixing frame. Several spray pipes are connected to the outer wall of the conduit inside the fixing frame. The several spray pipes are all inclined to the left side of the leveling roller with the left side higher than the right side. A cleaning sponge is fixedly connected to the top surface of the fixing frame. The cleaning sponge is in contact with the leveling roller.

[0017] After the cleaning fluid is poured into the storage tank through the inlet, the liquid pump can be driven to guide the cleaning fluid into the conduit at the output end through the conduit at the input end. The adhesive on the flattening roller is dissolved and cleaned through multiple spray pipes, and the cleaning sponge wipes the cleaning fluid on the flattening roller by the self-rotation effect of the flattening roller.

[0018] Furthermore, the processing unit includes:

[0019] A drive assembly, the drive assembly being mounted on top of the base plate; and

[0020] A coating assembly, which is mounted on the left side of the drive assembly;

[0021] The drive assembly is used to wind and unwind the roll material before and after coating, and the coating assembly is used to coat the roll material before coating.

[0022] Furthermore, the drive assembly includes a base fixedly connected to the top surface of the base plate, with a winding machine 1 and a winding machine 2 disposed inside the base. An unwinding machine is disposed on the top of the base plate, and two pressing rollers are disposed on the top surface of the base plate. The two pressing rollers are symmetrically disposed on the top of the base plate, and a coating roll and a pressing roll are disposed between the two pressing rollers. The two pressing rollers are in contact with the coating roll and the pressing roll, respectively. A positioning roller is disposed on the top surface of the base plate, and the coating roll is in contact with the positioning roller.

[0023] In this process, winding machine one and winding machine two unwind and wind up the coated roll material and the pressed roll material respectively, and the unwinding machine unwinds the pressed roll material. After coating one side of the coated roll material, the pressed roll material is bonded to the coated side of the coated roll material by two pressing rollers and then squeezed. Finally, winding machine two winds up the processed roll material.

[0024] Furthermore, the coating assembly includes a coating box fixedly connected to the top surface of the base plate. Coating roller one and coating roller two are rotatably connected to the inner wall of the coating box. An inlet pipe is connected to the coating box. A drying box is fixedly connected to the top surface of the base plate. Several support rollers are rotatably connected to the inner wall of the drying box. A hot air blower is connected to the top surface of the drying box. The top and bottom surfaces of the coating roll are in contact with coating roller one and coating roller two, respectively. The coating roll is located below the hot air blower. The coating roll is in contact with the outer walls of the several support rollers. The air outlet of the hot air blower faces the coating surface of the coating roll.

[0025] The liquid inlet pipe is used to connect to the external adhesive delivery. The coating roller 1 is in contact with the adhesive layer inside the coating box. The coating roller 1 is driven to rotate when the coating roll is wound up by the friction between the coating roll and the coating roll 1. The rotation of the coating roller 1 applies the adhesive to the coating surface of the coating roll and dries the coating surface by a hot air blower.

[0026] This utility model has the following beneficial effects:

[0027] 1. By setting an adjustment component, the motor can drive the rotating rod and the connecting plate to rotate. After the connecting plate rotates to a specified angle, a corresponding flattening roller comes into contact with the coating surface of the coated roll. The flattening roller squeezes the coated roll to generate pressure, thereby adjusting the thickness of the coating layer. This adjustment can be made according to different processing requirements, greatly improving production flexibility and product quality.

[0028] 2. By incorporating a cleaning component, cleaning fluid is sprayed from multiple inclined spray pipes to rinse the corresponding leveling rollers. This ensures that when one leveling roller is being coated, the adhesive on another leveling roller is dissolved and rinsed away, facilitating subsequent use and preventing excessive adhesive on the leveling rollers from affecting the coating thickness adjustment. Furthermore, when the rotating rod rotates, it moves the leveling rollers to the cleaning sponge, allowing the cleaning sponge to further clean the leveling rollers after rinsing, greatly improving the cleaning effect and ensuring the long-term effectiveness of the entire device.

[0029] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the processing part of this utility model;

[0033] Figure 3 This is a schematic diagram of the structure of the cleaning component of this utility model;

[0034] Figure 4 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0035] Figure 5 for Figure 2 Enlarged structural diagram at point A;

[0036] Figure 6 for Figure 2 Enlarged structural diagram at point B;

[0037] Figure 7 for Figure 2 A magnified structural diagram at point C.

[0038] The attached diagram lists the components represented by each number as follows:

[0039] 1. Base plate; 2. Cleaning section; 3. Processing section; 4. Coated roll material; 5. Pressed roll material;

[0040] 21. Adjustment assembly; 211. Support plate one; 212. Motor one; 213. Rotating rod one; 214. Connecting plate; 215. Rotating rod two; 216. Gear; 217. Gear ring; 218. Flattening roller; 219. Support plate two;

[0041] 22. Cleaning components; 221. Liquid storage tank; 222. Liquid inlet; 223. Fixing frame; 224. Liquid pump; 225. Conduit; 226. Spray pipe; 227. Cleaning sponge;

[0042] 31. Drive assembly; 311. Base; 312. Winding machine one; 313. Winding machine two; 314. Unwinding machine; 315. Pressing roller; 316. Positioning roller;

[0043] 32. Coating assembly; 321. Coating box; 322. Coating roller one; 323. Liquid inlet pipe; 324. Coating roller two; 325. Drying box; 326. Support roller; 327. Hot air blower. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0045] Please see Figure 1-7 As shown, this utility model is a dry laminating machine for processing packaging materials, including a base plate 1 and a coated roll 4.

[0046] Base plate 1 serves as the base to support the overall device;

[0047] Cleaning unit 2, mounted on top of base plate 1, is used to adjust and clean the coated area; and

[0048] Processing unit 3 is installed on top of base plate 1 and is used to process packaging materials;

[0049] In this process, the processing unit 3 coats the base roll material with adhesive, dries it, and then attaches the other side of the roll material to the adhesive layer to form a packaging bag and rolls it up. The cleaning unit 2 adjusts the coating thickness of the adhesive to meet different processing requirements and cleans the coated part to reduce coating thickness error.

[0050] Cleaning section 2 includes:

[0051] Adjustment component 21, the adjustment component 21 is disposed on one side of the coating surface of the coating roll 4; and

[0052] Cleaning component 22 is located to the left of adjustment component 21;

[0053] After the thickness of the coating layer is adjusted and processed by the adjustment component 21 according to different needs, the cleaning component 22 can use a special cleaning solution, such as ethyl acetate, to dissolve and clean the adhesive on the adjustment parts that are in contact with the coating layer of the adjustment component 21, and then the adjustment component 21 can be put into use for the next time.

[0054] Adjustment assembly 21 includes a support plate 211 fixedly connected to the top surface of base plate 1. A motor 212 is fixedly connected to the front support plate 211. The output end of motor 212 is fixedly connected to a rotating rod 213 via a coupling. Two connecting plates 214 are fixedly connected to the outer wall of rotating rod 213. Two rotating rods 215 pass through the two connecting plates 214. Both connecting plates 214 and rotating rods 215 are rotatably connected. Two gears 216 are fixedly connected to the outer wall of each rotating rod 215. Two gear rings 217 are fixedly connected to the top surface of base plate 1. The four gears 216 mesh with the two gear rings 217 respectively. Flattening rollers 218 are fixedly connected to the outer wall of each rotating rod 215. The two flattening rollers 218 are in contact with the coating surface of the coating roll 4. A support plate 219 is fixedly connected to the top surface, and a rotating rod 213 passes through the support plate 219 and is rotatably connected to it. The drive motor 212 drives the rotating rod 213 and the connecting plate 214 to rotate, which in turn drives two rotating rods 215 to revolve around the rotating rod 213. The gear 216 and the gear ring 217 cooperate with each other. During the revolution, the rotating rods 215 drive two flattening rollers 218 to rotate. Different positions on the curved surface of the flattening rollers 218 contact the coating surface of the coating roll 4. The angle between the flattening rollers 218 and the coating roll 4 can be adjusted when the coating is thicker or thinner, thereby providing different coating pressures and adjusting the coating thickness of the coating roll 4. This adjustment greatly improves the flexibility of production and the quality of products according to different processing requirements.

[0055] The cleaning component 22 includes a liquid storage tank 221 fixedly connected to the top surface of the base plate 1. An inlet 222 is provided on the top surface of the liquid storage tank 221. A fixing frame 223 is fixedly connected to the top surface of the liquid storage tank 221. A liquid pump 224 is fixedly connected to the top surface of the liquid storage tank 221. Both the output and input ends of the liquid pump 224 are fixedly connected to conduits 225. One end of the conduit 225 away from the input end of the liquid pump 224 extends into the interior of the liquid storage tank 221, and the other end of the conduit 225 away from the output end of the liquid pump 224 extends into the interior of the fixing frame 223 and is fixedly connected to the fixing frame 223. A plurality of spray pipes 226 are provided in communication with the outer wall of the conduit 225 inside the fixing frame 223. Each of the plurality of spray pipes 226... The cleaning sponge 227 is fixedly connected to the top surface of the fixing frame 223 on the left side of the flattening roller 218, with the frame tilted to the left and the frame tilted to the right. The cleaning sponge 227 is in contact with the flattening roller 218. After the cleaning fluid is poured into the liquid storage tank 221 through the liquid inlet 222, the liquid pump 224 can be driven to introduce the cleaning fluid into the conduit 225 on the output end through the conduit 225 on the input end. The adhesive on the flattening roller 218 is dissolved and cleaned through multiple spray pipes 226. The self-rotation effect of the flattening roller 218 allows the cleaning sponge 227 to wipe the cleaning fluid on the flattening roller 218, making it easy to put into subsequent use and avoiding excessive adhesive on the flattening roller 218 from affecting the coating thickness adjustment effect.

[0056] Processing unit 3 includes:

[0057] Drive assembly 31, drive assembly 31 is mounted on top of base plate 1; and

[0058] A coating assembly 32 is installed on the left side of the drive assembly 31. The drive assembly 31 is used to wind and unwind the pre-coating and post-coating rolls. The drive assembly 31 includes a base 311 fixedly connected to the top surface of the base plate 1. A winding machine 312 and a winding machine 313 are installed inside the base 311. An unwinding machine 314 is installed on the top of the base plate 1. Two pressing rollers 315 are symmetrically arranged on the top of the base plate 1. Coating roll 4 and pressing roll 5 are arranged between the two pressing rollers 315. The closing roller 315 contacts the coated roll 4 and the pressed roll 5 respectively. The top surface of the base plate 1 is provided with a positioning roller 316, and the coated roll 4 contacts the positioning roller 316. The coated roll 4 and the pressed roll 5 are unwound and wound up by the winding machine 1 312 and the winding machine 2 313 respectively. The unwinding machine 314 unwinds the pressed roll 5. After coating one side of the coated roll 4, the two pressing rollers 315 press the pressed roll 5 against the coated side of the coated roll 4 and squeeze it. The winding machine 2 313 then winds up the processed roll.

[0059] The coating assembly 32 includes a coating box 321 fixedly connected to the top surface of the base plate 1. A coating roller 322 and a coating roller 324 are rotatably connected to the inner wall of the coating box 321. A liquid inlet pipe 323 is connected to the coating box 321. A drying box 325 is fixedly connected to the top surface of the base plate 1. Several support rollers 326 are rotatably connected to the inner wall of the drying box 325. A hot air blower 327 is connected to the top surface of the drying box 325. The top and bottom surfaces of the coating roll 4 are in contact with the coating roller 322 and the coating roller 324, respectively. The coating roll 4 is located below the hot air blower 327. The hot air blower 327, with its outlet facing the coating surface of the coated roll 4, is in contact with the outer walls of several support rollers 326. The liquid inlet pipe 323 is used to connect to the external adhesive conveyor. The coating roller 322 is in contact with the adhesive layer inside the coating box 321. The coating roller 322 rotates when the coated roll 4 is wound up due to the friction between the coated roll 4 and the coating roller 322. The rotation of the coating roller 322 applies the adhesive to the coating surface of the coated roll 4, and the hot air blower 327 dries the coating surface, ensuring that the whole device provides the effect of dry lamination processing for packaging materials.

[0060] A specific application of this embodiment is as follows: By providing a cleaning unit 2, when coating one side of the coating roll 4, the drive motor 212 can drive the rotating rod 213 and the connecting plate 214 to rotate. After the connecting plate 214 rotates to a specified angle, a corresponding flattening roller 218 contacts the coating surface of the coating roll 4, causing the flattening roller 218 to squeeze the coating roll 4 and generate pressure, thereby adjusting the thickness of the coating layer. This adjustment is made according to different processing requirements, greatly improving production flexibility and product quality. Furthermore, when adjusting the thickness of the coating surface, the gear 216 and the gear ring 217 cooperate with each other, causing the flattening roller 218 to revolve around the rotating rod 213 while rotating on its own axis. At this time, cleaning fluid can be poured into the storage tank 221 through the inlet 222. Inside, the liquid pump 224 drives the cleaning liquid into the conduit 225, so that the cleaning liquid is sprayed out from multiple inclined spray pipes 226 to rinse the corresponding flattening rollers 218. This allows the adhesive on one flattening roller 218 to be dissolved and rinsed clean during coating, making it easier to use in subsequent applications. This avoids excessive adhesive on the flattening roller 218 affecting the coating thickness adjustment effect. The solution on the rinsed flattening roller 218 drips into the groove on the top surface of the base plate 1 and is discharged. When the rotating rod 213 rotates, it will drive the flattening roller 218 to the cleaning sponge 227, so that the cleaning sponge 227 can further clean the rinsed flattening roller 218, greatly improving the cleaning effect and ensuring the long-term use effect of the overall device.

[0061] With the processing unit 3, after the adhesive is poured into the coating box 321 through the liquid inlet pipe 323, the coating roller 322 comes into full contact with the adhesive. At this time, the winding machine 312, the winding machine 313 and the unwinding machine 314 can be driven, so that when the coated roll 4 is wound up, the coating roller 322 can coat the coating surface of the coated roll 4. After the coating surface is dried in the drying box 325, the pressing roll 5 covers the coating surface of the coated roll 4 and is shaped by the pressing of the two pressing rollers 315. The winding machine 313 is used to wind up the roll, ensuring that the whole device provides the effect of dry composite processing for the packaging material.

[0062] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dry compounder for packaging material processing, characterized by: The utility model provides a kind of packaging device, including bottom plate and coating roll, it is characterized by: Bottom plate, the bottom plate is used as matrix for supporting the whole device; Cleaning part, the cleaning part is installed on the top of bottom plate, and the cleaning part is used to adjust and clean coating part;And Processing part, the processing part is installed on the top of bottom plate, and the processing part is used to process packaging material; Wherein, the processing part is formed by coating adhesive on base roll, drying and sticking another roll on adhesive layer to form packaging bag roll, the cleaning part adjusts the coating thickness of adhesive to cope with different processing requirements while cleaning coating part to reduce coating thickness error.

2. A dry compounder for packaging material processing according to claim 1, characterized in that, The cleaning part includes: Adjusting assembly, the adjusting assembly is arranged on the coating side of coating roll;And Cleaning assembly, the cleaning assembly is arranged on the left side of adjusting assembly; Wherein, adjusting assembly adjusts the thickness of coating layer according to different requirements after processing, and cleaning assembly can dissolve and clean adhesive on the adjusting parts of adjusting assembly in contact with coating layer by special cleaning liquid, such as ethyl acetate, and then adjusting assembly can be used next time.

3. A dry compounder for packaging material processing according to claim 2, characterized in that, The adjusting assembly includes support plate one fixedly connected to the top surface of bottom plate, motor one fixedly connected to the front side of support plate one, output end of motor one fixedly connected with rotating rod one through coupling, two connecting plates fixedly connected to the outer wall of rotating rod one, two rotating rods two penetrating between two connecting plates, rotating connection between two connecting plates and two rotating rods two, two gears fixedly connected to the outer wall of two rotating rods two, two gear rings fixedly connected to the top surface of bottom plate, four gears are respectively engaged with two gear rings, two covering rollers fixedly connected to the outer wall of two rotating rods two, two covering rollers are in contact with the coating surface of coating roll, support plate two fixedly connected to the top surface of bottom plate, rotating rod one penetrates support plate two and is rotatably connected with support plate two; Wherein, driving motor one drives rotating rod one and connecting plate to rotate, drives two rotating rods two to revolve around rotating rod one, gear and gear ring cooperate with each other, rotating rod two drives two covering rollers to rotate in the process of revolution, different positions on the curved surface of covering roller are in contact with the coating surface of coating roll, the angle between covering roller and coating roll can be adjusted when coating is thicker or thinner, and different coating pressure can be provided, and the coating thickness of coating roll is adjusted.

4. A dry compounder for packaging material processing according to claim 3, characterized in that, The cleaning assembly includes a liquid storage tank fixedly connected to the top surface of the base plate. The top surface of the liquid storage tank is connected to a liquid inlet. A fixing frame is fixedly connected to the top surface of the liquid storage tank. A liquid pump is fixedly connected to the top surface of the liquid storage tank. Both the output end and the input end of the liquid pump are fixedly connected to conduits. One end of the conduit away from the input end of the liquid pump extends into the interior of the liquid storage tank. The other end of the conduit away from the output end of the liquid pump extends into the interior of the fixing frame and is fixedly connected to the fixing frame. Several spray pipes are connected to the outer wall of the conduit inside the fixing frame. The several spray pipes are all inclined to the left side of the leveling roller, with the left side higher than the right side. A cleaning sponge is fixedly connected to the top surface of the fixing frame. The cleaning sponge is in contact with the leveling roller. After the cleaning fluid is poured into the storage tank through the inlet, the liquid pump can be driven to guide the cleaning fluid into the conduit at the output end through the conduit at the input end. The adhesive on the flattening roller is dissolved and cleaned through multiple spray pipes, and the cleaning sponge wipes the cleaning fluid on the flattening roller by the self-rotation effect of the flattening roller.

5. A dry compounder for packaging material processing according to claim 4, characterized in that, The processing unit includes: A drive assembly, the drive assembly being mounted on top of the base plate; and A coating assembly, which is mounted on the left side of the drive assembly; The drive assembly is used to wind and unwind the roll material before and after coating, and the coating assembly is used to coat the roll material before coating.

6. A dry compounder for packaging material processing according to claim 5, characterized in that, The drive assembly includes a base fixedly connected to the top surface of the base plate. The base is equipped with a winding machine 1 and a winding machine 2. The top of the base plate is equipped with an unwinding machine. The top surface of the base plate is equipped with two pressing rollers. The two pressing rollers are symmetrically arranged on the top of the base plate. Coating material and pressing material are arranged between the two pressing rollers. The two pressing rollers are in contact with the coating material and the pressing material, respectively. The top surface of the base plate is equipped with a positioning roller. The coating material is in contact with the positioning roller. In this process, winding machine one and winding machine two unwind and wind up the coated roll material and the pressed roll material respectively, and the unwinding machine unwinds the pressed roll material. After coating one side of the coated roll material, the pressed roll material is bonded to the coated side of the coated roll material by two pressing rollers and then squeezed. Finally, winding machine two winds up the processed roll material.

7. A dry compounder for packaging material processing according to claim 6, characterized in that, The coating assembly includes a coating box fixedly connected to the top surface of the base plate. Coating roller one and coating roller two are rotatably connected to the inner wall of the coating box. A liquid inlet pipe is connected to the coating box. A drying box is fixedly connected to the top surface of the base plate. Several support rollers are rotatably connected to the inner wall of the drying box. A hot air blower is connected to the top surface of the drying box. The top and bottom surfaces of the coating roll are in contact with coating roller one and coating roller two, respectively. The coating roll is located below the hot air blower. The coating roll is in contact with the outer walls of the several support rollers. The air outlet of the hot air blower faces the coating surface of the coating roll. The liquid inlet pipe is used to connect to the external adhesive delivery. The coating roller 1 is in contact with the adhesive layer inside the coating box. The coating roller 1 is driven to rotate when the coating roll is wound up by the friction between the coating roll and the coating roll 1. The rotation of the coating roller 1 applies the adhesive to the coating surface of the coating roll and dries the coating surface by a hot air blower.

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