Woven bag film covering device

Abstract

A woven bag film covering device comprises a feeding assembly, an elastic pressing and film covering assembly and a guiding and flattening assembly. The feeding assembly is configured to convey woven bags and thin films, the elastic pressing and film covering assembly is configured to press the woven bags and the thin films, and the guiding and flattening assembly is configured to flatten the pressed woven bags; through the synergistic effect of elastic pressing and guide flattening, the defects of film distortion, wrinkling and air chambers in the film covering process are overcome, it is guaranteed that the surface of a woven bag subjected to film covering is flat, smooth and firm in bonding, and the appearance quality and the practical performance of a product are improved. The device is simple in structure and convenient to operate, the guiding and flattening assembly is suitable for woven bags of different thicknesses and sizes, good compatibility is achieved, meanwhile, the production efficiency is improved, and the efficient industrial production requirement is met.

Description

Technical Field

[0001] The invention belongs to the technical field of woven bag coating equipment, and specifically refers to a woven bag coating device. Background Art

[0002] Due to the large pores on the surface, traditional woven bags are easily affected by moisture, absorb water and pollute in actual use. Therefore, it is usually necessary to add a layer of waterproof film on its surface through laminating technology to improve its moisture-proof, dust-proof and wear-resistant properties. The existing woven bag laminating technology mainly adopts thermal lamination or coating process, but the following problems are common: During the lamination process of the film, the traditional laminating device usually uses a hard roller to laminate the woven bag and the film, but the inaccurate adjustment of the roller gap or the uneven pressure distribution will cause the film to be subjected to excessive pressure in the local area, forming ripples or wrinkles, which directly affects the aesthetics and adhesion of the lamination. At the same time, the uneven thickness or insufficient flexibility of the film itself is also easy to form wrinkles during high-speed transmission and lamination. Therefore, a new woven bag laminating device that can effectively solve the problem of film wrinkling is needed to meet the production needs of the woven bag packaging industry. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a woven bag coating device to at least partially solve the above technical problems.

[0004] The technical solution adopted by the present invention is as follows: The present invention proposes a woven bag coating device, comprising a feeding assembly, an elastic pressing and coating assembly and a guide flattening assembly, the feeding assembly is configured to transmit woven bags and films, the elastic pressing and coating assembly is configured to press the woven bags and films, and the guide flattening assembly is configured to flatten the pressed woven bags; the guide flattening assembly comprises a guide roller and a guide motor, the guide motor is configured to drive the guide roller to rotate, a protruding guide thread is provided on the outer surface of the guide roller, and the guide roller is symmetrically arranged on both sides of the elastic pressing and coating assembly.

[0005] Furthermore, the elastic lamination assembly includes a fixed lamination roller, a floating lamination roller, a floating telescopic bracket and a lamination motor, the fixed lamination roller is fixedly arranged, the floating lamination roller is movably arranged on the floating telescopic bracket, and the lamination motor is configured to drive the rotation of the fixed lamination roller and the floating lamination roller; the fixed lamination roller and the floating lamination roller are correspondingly arranged in the vertical direction, and the fixed lamination roller and the floating lamination roller cooperate to achieve the lamination of the woven bag and the film.

[0006] Furthermore, the elastic pressing and laminating assembly also includes a telescopic rod and a compression spring, the telescopic rod is arranged on a floating telescopic bracket, the floating pressing roller is arranged on the telescopic rod, and the compression spring is arranged between the floating pressing roller and the floating telescopic bracket.

[0007] Furthermore, the feeding assembly includes a first tensioning roller and a second tensioning roller, the first tensioning roller and the second tensioning roller are arranged alternately, the first tensioning roller and the second tensioning roller are configured to transmit woven bags, the first tensioning roller is provided with a first feeding motor, the second tensioning roller is provided with a second feeding motor, the first feeding motor is configured to drive the first tensioning roller to rotate, and the second feeding motor is configured to drive the second tensioning roller to rotate; the axial distance between the first tensioning roller and the second tensioning roller is adjustable.

[0008] Furthermore, the feed assembly also includes a heating roller, on which a third feed motor is provided, and the third feed motor is configured to drive the heating roller to rotate; the heating roller is configured to convey the film, and a resistance heating wire is provided inside the heating roller.

[0009] Furthermore, it also includes an air cooling component, which is arranged between the elastic pressing and laminating component and the guide flattening component. The air cooling component includes a cooling air outlet and an adjustment bracket. The cooling air outlet is arranged on the adjustment bracket, and the cooling air outlet is used to cool the woven bag after the lamination.

[0010] Furthermore, it also includes a winding assembly, which is arranged on one side of the guide flattening assembly. The winding assembly includes a winding roller and a winding drum. The winding roller is provided with a winding motor, and the winding motor is configured to drive the winding roller to rotate. The winding drum is provided with a unloading motor, and the unloading motor is configured to drive the winding drum to rotate.

[0011] Furthermore, it also includes an overall frame, and the feeding assembly, elastic pressing and laminating assembly and guiding and flattening assembly are all fixedly arranged on the overall frame.

[0012] Compared with the prior art, the present invention has the following advantages: The present invention solves the defects of film distortion, wrinkles and air chambers during the lamination process through the synergistic effect of elastic pressing and guided flattening, ensuring that the surface of the woven bag after lamination is flat and smooth and firmly bonded, thereby improving the appearance quality and practical performance of the product. The device has a simple structure and is easy to operate. The guided flattening component is suitable for woven bags of different thicknesses and sizes, has good compatibility, and improves production efficiency, meeting the needs of efficient industrialized production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional view of a woven bag coating device proposed in an embodiment of the present invention Figure 1 ; Figure 2 A front view of a woven bag coating device proposed in an embodiment of the present invention; Figure 3 for Figure 2 The enlarged view at center Ⅰ; Figure 4 A top view of a woven bag coating device proposed in an embodiment of the present invention; Figure 5 for Figure 4 Magnified view at center II; Figure 6 for Figure 4 The cross-sectional view along the AA direction; Figure 7 A three-dimensional view of a woven bag coating device proposed in an embodiment of the present invention Figure 2 .

[0014] Among them, 100, feeding assembly, 200, elastic pressing and laminating assembly, 300, guiding and flattening assembly, 400, air cooling assembly, 500, winding assembly, 600, overall frame, 101, first tensioning roller, 102, second tensioning roller, 103, heating roller, 104, first feeding motor, 105, second feeding motor, 106, third feeding motor, 201, fixed pressing roller, 202, floating pressing roller, 203, floating telescopic bracket, 204, pressing motor, 205, telescopic rod, 206, compression spring, 301, guide roller, 302, guide thread, 303, guide motor, 401, cooling air outlet, 402, adjusting bracket, 501, winding roller, 502, winding drum, 503, winding motor, 504, unloading motor.

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0018] This embodiment is mainly used for laminating woven bags. When existing laminating equipment is used for laminating woven bags, defects such as distorted ripples, wrinkles and air chambers may appear on the surface of the film due to the fit and the properties of the film itself.

[0019] In order to solve the above problems, Figure 1-Figure 7 As shown, this embodiment achieves high-quality lamination of the woven bag by providing a feeding component 100, an elastic pressing and laminating component 200 and a guiding and flattening component 300. First, the feeding component 100 stably conveys the woven bag and the film to the elastic pressing and laminating component 200, and uses an elastic roller to evenly press the woven bag and the film to complete the lamination operation. Compared with the traditional hard pressing roller, the elastic pressing structure can adapt to the slight unevenness of the surface of the film and the woven bag, improve the fit, and reduce the air chambers and wrinkles generated on the surface of the film. At the same time, this embodiment creatively introduces the guiding and flattening component 300, which consists of a guiding roller 301 and a guiding motor 303. The guiding thread 302 on the outer surface of the guiding roller 301 applies an outward friction force to the woven bag after lamination through rotation, thereby effectively flattening the two sides of the woven bag and avoiding adhesion and wrinkling of the film.

[0020] When in use, the elastic pressing coating assembly 200 of this embodiment conveys the coated woven bag to the guide roller 301. The guide roller 301 contacts the two sides of the woven bag. When the guide motor 303 drives the guide roller 301 to rotate, the guide thread 302 applies an outward friction force to the woven bag to flatten the woven bag, thereby avoiding defects such as wrinkles and adhesion on the film of the woven bag.

[0021] This embodiment solves the defects of film distortion, wrinkles and air chambers during the lamination process through the synergistic effect of elastic pressing and guided flattening, ensuring that the surface of the woven bag after lamination is flat and smooth and firmly bonded, thereby improving the appearance quality and practical performance of the product; in addition, the device has a simple structure and is easy to operate. The guided flattening component is suitable for woven bags of different thicknesses and sizes, has good compatibility and reliability, and at the same time improves production efficiency to meet the needs of efficient industrialized production.

[0022] The elastic lamination assembly 200 proposed in this embodiment realizes efficient lamination of the woven bag and the film through the coordinated work of the fixed lamination roller 201 and the floating lamination roller 202; the fixed lamination roller 201 is fixedly installed to provide stable support, while the floating lamination roller 202 is movably connected through the floating telescopic bracket 203, and can be automatically adjusted according to the thickness changes of the woven bag and the film to ensure uniform force during the lamination process; the lamination motor 204 drives the two rollers to rotate synchronously, so that the film and the woven bag are evenly pressure-covered while passing through the rollers, thereby improving the lamination quality; the elastic setting of the floating lamination roller 202 effectively adapts to materials of different thicknesses, avoiding wrinkling, adhesion or indentation of the film caused by uneven pressure in traditional equipment.

[0023] The elastic laminating assembly cleverly combines the advantages of fixed laminating and elastic adjustment in terms of working principle, which not only enhances the adaptability of the equipment to woven bags of different materials, but also improves the flatness and adhesion of the laminating. The dynamic adjustment of the floating telescopic bracket 203 ensures the stability of the pressure during the laminating process, solving the problem that the traditional laminating equipment cannot adapt to the change of material thickness. In addition, the assembly has a simple structure and reliable operation, which can reduce the equipment maintenance cost and improve the laminating production efficiency.

[0024] The elastic pressing and laminating assembly 200 proposed in this embodiment achieves precise adjustment of the floating pressing roller 202 by introducing a telescopic rod 205 and a compression spring 206; the telescopic rod 205 is fixed on the floating telescopic bracket 203, and the floating pressing roller 202 is movably connected to the telescopic rod 205, and is provided with continuous elastic force by the compression spring 206; during use, when the woven bag and the film pass between the fixed pressing roller 201 and the floating pressing roller 202, the compression spring 206 automatically adjusts the position of the floating pressing roller 202 according to the thickness difference of the material, ensuring that the two rollers always maintain contact and apply appropriate pressing force; this dynamic adjustment mechanism effectively adapts to woven bags and films of different thicknesses, avoiding wrinkling, adhesion or poor lamination caused by excessive or insufficient pressure in traditional equipment.

[0025] This embodiment improves the adaptability and coating effect of the equipment through the flexible pressing force generated by the compression spring 206; this setting can automatically adapt to materials of different thicknesses without additional adjustment of the equipment, avoiding frequent shutdowns for adjustments, and achieving the effect of improving production efficiency; in addition, the elastic adjustment mechanism ensures the uniformity of pressure during the pressing process, which not only effectively eliminates ripples and wrinkles on the surface of the film, but also extends the service life of the equipment.

[0026] The feeding assembly 100 proposed in this embodiment realizes efficient transmission and tensioning force adjustment of the woven bag through the coordinated arrangement of the first tensioning roller 101 and the second tensioning roller 102; the first tensioning roller 101 and the second tensioning roller 102 are driven to rotate by the first feeding motor 104 and the second feeding motor 105 respectively, and when the woven bag passes between the two tensioning rollers, the rotation of the rollers drives the woven bag to be smoothly transported to the elastic pressing and laminating assembly 200; the two rollers are staggered and the axial distance is adjustable, and the distance between them can be adjusted to flexibly control the tensioning force of the woven bag during the transmission process, which prevents the woven bag from being too loose and causing unstable transportation, and avoids damage to the material due to excessive tension.

[0027] Through the setting of the feeding assembly, this embodiment effectively improves the stability of woven bag transmission and the flexibility of tension control; the function of adjusting the roller spacing enables the equipment to adapt to woven bag materials of different sizes and thicknesses, enhancing the versatility of the system; at the same time, the dual-motor drive structure ensures the efficient operation and synchronization of the tensioning roller, avoiding problems such as film wrinkling and poor lamination caused by uneven tension in traditional feeding systems; the overall setting not only optimizes the feeding accuracy, but also improves the stability of equipment operation and the consistency of the lamination process.

[0028] The feed assembly 100 proposed in this embodiment realizes the efficient conveying and preheating functions of the coated film by setting a heating roller 103; the heating roller 103 is driven to rotate by the third feed motor 106, and in the process of conveying the film to the elastic pressing coating assembly 200, the film passes through the surface of the heating roller 103, and at the same time, the internal resistance heating wire uniformly heats the film to soften it and improve its adhesion performance; the resistance heating wire in the heating roller 103 is equipped with a temperature adjustment function, which can flexibly control the heating temperature according to the material, thickness and specific coating requirements of the film, ensuring that the film completes the preheating process at the optimal temperature.

[0029] By setting the heating roller 103, this embodiment effectively solves the problems of poor film adhesion and easy generation of air chambers and wrinkles in traditional laminating equipment; the film becomes softer and more adhesive after preheating, and can more evenly adhere to the surface of the woven bag, thereby improving the quality and durability of the lamination; at the same time, the device has a simple structure and flexible temperature adjustment, and is suitable for a variety of film materials and process requirements, which not only improves the applicability of the equipment, but also further optimizes the stability and efficiency of the lamination, meeting the high quality requirements of industrial production.

[0030] In this embodiment, an air cooling component 400 is provided to achieve efficient cooling of the woven bag after lamination and rapid solidification of the film; the air cooling component 400 is located between the elastic pressing lamination component 200 and the guide flattening component 300, and is composed of a cooling air outlet 401 and an adjustment bracket 402; when the woven bag passes through the cooling air outlet 401, the cooling air outlet 401 blows cold air to its surface to quickly cool down the coated film, thereby accelerating the solidification and forming of the film and improving the stability and durability of the lamination; the cooling air outlet 401 is installed on the adjustment bracket 402, and the position of the cooling air outlet can be flexibly adjusted by adjusting the bracket 402 to adapt to woven bags of different sizes or thicknesses, thereby ensuring the uniformity and efficiency of the cooling effect.

[0031] The setting of the air cooling component optimizes the film curing process in terms of working principle, effectively avoiding the problem of adhesion or displacement of the film when it is not completely cooled; through the position adjustment function, the cooling air outlet 401 can be accurately aligned with the area that needs cooling, enhancing the flexibility and adaptability of the equipment; in addition, the cooling process is closely integrated with the laminating process, which not only improves production efficiency, but also ensures the laminating quality of the finished woven bags.

[0032] This embodiment realizes efficient winding and storage of woven bags after lamination by setting a winding assembly 500. The winding assembly 500 is composed of a winding roller 501, a winding drum 502, a winding motor 503 and a discharge motor 504; when in use, the woven bags after lamination and flattening are output from the guide flattening assembly 300, and are evenly wound on the winding drum 502 for temporary storage through the rotation of the winding roller 501. The winding motor 503 drives the winding roller 501 to rotate, ensuring that the woven bags are arranged compactly and without looseness during the winding process; when it is necessary to ship or carry out subsequent processes, the unloading motor 504 drives the winding drum 502 to rotate in the opposite direction, and the whole roll of the film-coated woven bag can be easily removed.

[0033] The winding assembly proposed in this embodiment has a simple structure and is easy to operate, which effectively solves the problem of storage and transportation of woven bags after lamination. Through the coordinated work of the winding motor 503 and the unloading motor 504, the winding process is stable and efficient, and can adapt to woven bags of different lengths and thicknesses, thereby enhancing the versatility and adaptability of the equipment. In addition, the controllable unloading function of the winding drum avoids the tedious manual processing, reduces labor intensity, improves production efficiency, and ensures that the laminating surface is not damaged.

[0034] This embodiment further includes an overall frame 600 , and the feeding assembly 100 , the elastic pressing and laminating assembly 200 , and the guiding and flattening assembly 300 are all fixedly arranged on the overall frame 600 .

[0035] This embodiment realizes the orderly layout and stable support of the various components of the equipment by setting up the overall frame 600; the overall frame 600 is used to fix the feeding component 100, the elastic pressing and laminating component 200 and the guiding and flattening component 300, so that the relative positions of the various components remain stable, ensuring the accuracy and coordination of the entire laminating device during operation; the setting of the overall frame 600 provides a solid structural foundation for the equipment, allowing the various functional modules to work together efficiently, thereby ensuring the continuity and consistency of the woven bag laminating process.

[0036] The overall frame 600 proposed in this embodiment not only improves the overall stability of the equipment, but also facilitates operation and maintenance. By centrally fixing the components on the frame, the vibration and displacement problems that may occur during the operation of the equipment are reduced, and the lamination quality is further improved; in addition, the modular setting of the overall frame facilitates the transportation and assembly of the equipment, and can be expanded or adjusted according to different production needs.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A woven bag laminating device, characterized in that: The invention comprises a feeding assembly (100), an elastic laminating assembly (200) and a guiding flattening assembly (300), wherein the feeding assembly (100) comprises a first tensioning roller (101) and a second tensioning roller (102), the feeding assembly (100) is configured to transport a woven bag and a film, the elastic laminating assembly (200) comprises a fixed laminating roller (201) and a floating laminating roller (202), and the elastic laminating assembly (200) is configured to press the woven bag and the film; The guide flattening assembly (300) comprises a guide roller (301) and a guide motor (303), wherein the guide motor (303) is configured to drive the guide roller (301) to rotate, and a protruding guide thread (302) is provided on the outer surface of the guide roller (301). The guide roller (301) is symmetrically arranged on both sides of the elastic lamination assembly (200) to flatten the woven bag after lamination.

2. The woven bag coating device according to claim 1, characterized in that: The elastic laminating film assembly (200) further comprises a floating telescopic support (203) and a laminating motor (204); the fixed laminating roller (201) is fixedly arranged, the floating laminating roller (202) is movably arranged on the floating telescopic support (203), and the laminating motor (204) is configured to drive the rotation of the fixed laminating roller (201) and the floating laminating roller (202); The fixed pressing roller (201) and the floating pressing roller (202) are arranged correspondingly in the vertical direction, and the fixed pressing roller (201) and the floating pressing roller (202) cooperate to realize the pressing of the woven bag and the film.

3. The woven bag coating device according to claim 2, characterized in that: The elastic lamination assembly (200) further comprises a telescopic rod (205) and a compression spring (206); the telescopic rod (205) is arranged on a floating telescopic bracket (203); the floating lamination roller (202) is arranged on the telescopic rod (205); and the compression spring (206) is arranged between the floating lamination roller (202) and the floating telescopic bracket (203).

4. The woven bag coating device according to claim 1, characterized in that: The first tensioning roller (101) and the second tensioning roller (102) are arranged alternately; the first tensioning roller (101) and the second tensioning roller (102) are configured to transport woven bags; the first tensioning roller (101) is provided with a first feeding motor (104); the second tensioning roller (102) is provided with a second feeding motor (105); the first feeding motor (104) is configured to drive the first tensioning roller (101) to rotate; the second feeding motor (105) is configured to drive the second tensioning roller (102) to rotate; and the axial distance between the first tensioning roller (101) and the second tensioning roller (102) is adjustable.

5. The woven bag coating device according to claim 4, characterized in that: The feeding assembly (100) further comprises a heating roller (103), the heating roller (103) being provided with a third feeding motor (106), the third feeding motor (106) being configured to drive the heating roller (103) to rotate; the heating roller (103) being configured to convey a film, the heating roller (103) being provided with a resistance heating wire inside.

6. The woven bag coating device according to claim 1, characterized in that: The air cooling assembly (400) is also included. The air cooling assembly (400) is arranged between the elastic pressing and laminating assembly (200) and the guiding and flattening assembly (300). The air cooling assembly (400) comprises a cooling air outlet (401) and an adjusting bracket (402). The cooling air outlet (401) is arranged on the adjusting bracket (402). The cooling air outlet (401) is used to cool down the woven bag after lamination.

7. The woven bag coating device according to claim 1, characterized in that: The invention also comprises a winding assembly (500), wherein the winding assembly (500) is arranged on one side of the guide flattening assembly (300), and the winding assembly (500) comprises a winding roller (501) and a winding drum (502), wherein the winding roller (501) is provided with a winding motor (503), and the winding motor (503) is configured to drive the winding roller (501) to rotate, and the winding drum (502) is provided with a discharge motor (504), and the discharge motor (504) is configured to drive the winding drum (502) to rotate.

8. The woven bag coating device according to claim 1, characterized in that: It also comprises an overall frame (600), and the feeding assembly (100), the elastic pressing and laminating assembly (200) and the guiding and flattening assembly (300) are all fixedly arranged on the overall frame (600).

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