Hot melt adhesive laminating machine

Abstract

The present invention discloses a hot melt adhesive laminating machine, comprising a frame, a first unwinding assembly, a gluing device, a drying assembly, a second unwinding assembly, a guide and tensioning assembly, a compounding device, and a material receiving assembly; the frame is vertically arranged and comprises a front mounting plate and a rear mounting plate vertically spaced apart; the first unwinding assembly, a gluing device, a drying assembly, a guide and tensioning assembly, a compounding device, a second unwinding assembly, and a material receiving assembly are sequentially arranged between the front mounting plate and the rear mounting plate from left to right. The hot melt adhesive laminating machine of the present invention is convenient for adjusting the width of the adhesive tank and is suitable for laminating non-woven fabrics of different sizes and specifications; it is convenient for cleaning excess adhesive, waste adhesive, and debris in the adhesive storage tank; and the floating coating adhesive roller assembly and the lifting drying assembly enable it to be suitable for laminating processes of incoming materials of different thicknesses, and has strong versatility.

Description

Technical Field

[0001] The present invention relates to the technical field of composite non-woven fabric processing equipment, in particular to a hot melt adhesive compounding machine. Background Art

[0002] Common composite non-woven fabrics include laminated composite non-woven fabrics, laminated composite non-woven fabrics, laser non-woven fabrics, high-gloss non-woven fabrics, matte non-woven fabrics, and coated non-woven fabrics. Most of them are composite two-layer fabrics, and composite three-layer fabrics have one more process than two-layer fabrics.

[0003] Laminated nonwovens are often used for eco-friendly bags or automotive sunscreens. There's also the golden tree-wrapped nonwoven fabric used for storefronts. By leveraging the combined advantages of composite materials, composite nonwovens possess correspondingly superior properties.

[0004] Equipment typically used to produce composite nonwoven fabrics requires a roller-based glue-spraying component. This component applies glue to one side of the composite material, then aligns and bonds two or more layers of the composite material together, compacting them to form the composite nonwoven fabric. However, existing glue-spraying components in laminating machines suffer from poor adjustability, limited versatility, and difficulty cleaning residual glue and impurities. Summary of the Invention

[0005] The purpose of the present invention is to provide a hot melt adhesive laminating machine, which is convenient for adjusting the width of the glue tank and is suitable for the lamination of non-woven fabrics of different sizes and specifications; it is convenient for cleaning the residual glue, waste glue and debris in the glue storage tank; at the same time, the floating coating rubber roller assembly and the lifting drying assembly make it suitable for the lamination process of incoming materials of different thicknesses, and have strong versatility.

[0006] In order to solve the above technical problems, the technical solution of the present invention is:

[0007] A hot melt adhesive laminating machine comprises a frame, a first unwinding assembly, a gluing device, a drying assembly, a second unwinding assembly, a guide tensioning assembly, a laminating device, and a material receiving assembly;

[0008] The frame is arranged vertically, and includes a front mounting plate and a rear mounting plate arranged vertically at intervals; a first unwinding assembly, a gluing device, a drying assembly, a guide tensioning assembly, a compounding device, a second unwinding assembly, and a material receiving assembly are arranged between the front mounting plate and the rear mounting plate from left to right.

[0009] The gluing device includes a gluing steel roller, a scraper assembly, a scraper connecting plate, a driving motor, an adjusting cylinder, and a floating coating rubber roller assembly;

[0010] The frame is provided with a horizontally arranged glue coating steel roller; one side of the glue coating steel roller is provided with a horizontally arranged scraper assembly;

[0011] The scraper connecting plates are two pieces, which are arranged opposite to each other, are respectively arranged on the inner side of the frame and are hingedly connected to the frame;

[0012] The scraper assembly includes a scraper frame, a rubber baffle, a rubber baffle seat, a guide rail, a slide, a scraper blade, a scraper pressure plate, and a rubber groove adjustment screw; the scraper frame is horizontally arranged, and its left and right ends are respectively fixed on the scraper connecting plate, and an L-shaped groove is provided on the inner side of the scraper connecting plate; the scraper blade is fixed to the bottom of the scraper frame through the scraper pressure plate; the upper end of the scraper blade is arranged in the L-shaped groove;

[0013] There are two glue-blocking plates, one on either side of the scraper frame, specifically within its L-shaped groove. The outer sides of these plates are curved, fitting over the arcuate outer wall of the glue-applying steel roller. A glue reservoir with an open top is formed between the glue-applying steel roller, the scraper frame, and the glue-blocking plates, into which glue is introduced. As the glue-applying steel roller rotates, the glue adheres to the outer wall and is then transferred to the substrate (non-woven fabric or film) passing through the roller, preparing for subsequent multi-layer bonding and lamination.

[0014] The width of the glue reservoir must correspond to the width of the substrate being coated. If it is smaller than the substrate width, some areas of the substrate will not be adhered to by glue. If the glue reservoir is wider than the substrate width, glue from the end of the coating roller will transfer to the guide roller, affecting equipment cleanliness and smooth substrate conveyance. To accommodate substrates of varying widths, the width of the glue reservoir must be easily adjustable. This application adjusts the width of the glue reservoir by adjusting the distance between the two glue baffles.

[0015] At the same time, in order to facilitate the cleaning of residual glue, waste glue and debris in the glue storage tank, the scraper frame is set to a swing structure, so that the scraper frame can rotate and swing to open a gap at the bottom of the glue storage tank, which is convenient for discharging and cleaning residual glue, waste glue and debris.

[0016] A linear guide rail is provided on the top of the scraper frame, and a slide is provided on the linear guide rail; the rubber baffle plate seat is fixed on the slide seat, and the rubber baffle plate is fixed on the rubber baffle plate seat; the rubber groove adjustment screw rod is horizontally passed through the scraper connecting plate, and the other end thereof is engaged with the threaded hole of the rubber baffle plate seat; by rotating the rubber groove adjustment screw rod, the rubber baffle plate seat can be driven to slide along the linear guide rail, thereby adjusting the distance between the two rubber baffle plates.

[0017] The substrate to be composited is placed on the first unwinding assembly. The substrate is a cylindrical coil sleeved on the air shaft and rotated to unwind the substrate, so that the substrate is transported backward to the corresponding process.

[0018] The first unwinding assembly includes an air shaft, a guide roller, a tensioning roller, and an unwinding motor.

[0019] The drying assembly includes a drying box, a cooling roller, and an oven lift assembly. The drying box is located above the cooling roller, with a concave bottom surface that mates with the outer wall of the cooling roller. Several electric heating rods are located within the drying box. A cavity is located in the center of the cooling roller, containing coolant. The oven lift assembly allows the drying box to be raised or lowered vertically.

[0020] There are several guide tensioning components, which are arranged between the components, so that the incoming materials are conveyed tautly and straight to the processing components.

[0021] The composite device includes a floating composite rubber roller assembly and a rear traction steel roller;

[0022] The second unwinding assembly includes an air shaft and an unwinding motor;

[0023] The material receiving assembly comprises a winding rubber roller, a material receiving motor, and a winding flat push rubber roller assembly.

[0024] Beneficial effects of the present invention:

[0025] It is convenient to adjust the width of the glue tank and is suitable for the lamination of non-woven fabrics of different sizes and specifications; it is convenient to clean the residual glue, waste glue and debris in the glue storage tank; at the same time, the floating coating rubber roller assembly and the lifting drying assembly make it suitable for the lamination process of incoming materials of different thicknesses, with strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a hot melt adhesive laminating machine of the present invention;

[0027] Figure 2 Schematic diagram of the structure of a hot melt adhesive laminating machine of the present invention (omitting the frame);

[0028] Figure 3 It is a structural diagram of the first unwinding component and the gluing device;

[0029] Figure 4 for Figure 3 A top view of

[0030] Figure 5 It is a structural schematic diagram of the scraper assembly of the present invention. DETAILED DESCRIPTION

[0031] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0032] like Figures 1 to 5As shown, a hot melt adhesive laminating machine includes a frame 1, a first unwinding assembly 2, a gluing device 3, a drying assembly 4, a second unwinding assembly 5, a guide tensioning assembly, a laminating device 7, and a material receiving assembly 8;

[0033] The frame 1 is arranged vertically, and includes a front mounting plate and a rear mounting plate arranged vertically at intervals; the first unwinding component 2, the gluing device 3, the drying component 4, the guide tensioning component, the compounding device 7, the second unwinding component 5, and the material receiving component 8 are arranged between the front mounting plate and the rear mounting plate from left to right.

[0034] The glue coating device 3 includes a glue coating steel roller 31, a scraper assembly 32, a scraper connecting plate 33, a driving motor 34, an adjusting cylinder 35, and a floating coating rubber roller assembly 36;

[0035] The frame 1 is provided with a horizontally arranged glue coating steel roller 31; a horizontally arranged scraper assembly 32 is provided on one side of the glue coating steel roller 31;

[0036] The scraper connecting plates 33 are two pieces, which are arranged opposite to each other and are respectively arranged on the inner side of the frame 1 and hingedly connected to the frame 1;

[0037] The scraper assembly 32 includes a scraper frame 321, a rubber baffle 322, a rubber baffle seat 323, a guide rail 324, a slide 325, a scraper blade 326, a scraper pressure plate 327, and a rubber groove adjustment screw 328. The scraper frame 321 is arranged horizontally, and its left and right ends are respectively fixed on the scraper connecting plate 33, and an L-shaped groove 329 is provided on the inner side of the scraper frame 321. The scraper blade 326 is fixed to the bottom of the scraper frame 321 through the scraper pressure plate 327. The upper end of the scraper blade 326 is disposed in the L-shaped groove 329.

[0038] Two glue-blocking plates 322 are located on either side of the scraper frame 321, specifically within the L-shaped groove 329 of the scraper frame 321. The outer sides of the glue-blocking plates 322 are curved, conforming to the arc-shaped outer wall of the glue-applying steel roller 31. An open-top glue reservoir 330 is formed between the glue-applying steel roller 31, the scraper frame 321, and the glue-blocking plates 322. Glue is introduced into the reservoir 330. As the glue-applying steel roller 31 rotates, the glue adheres to the outer wall and is then transferred to the substrate (non-woven fabric or film) passing through the glue-applying steel roller 31, preparing for the subsequent bonding and lamination of multiple layers of materials.

[0039] The width of the glue reservoir 330 must correspond to the width of the substrate being coated. If it is smaller than the substrate width, some areas of the substrate will not be adhered to by the glue. If the glue reservoir 330 is wider than the substrate width, the glue at the end of the glue-applying steel roller 31 will transfer to the guide roller, affecting the cleanliness of the equipment and the smooth conveyance of the substrate. To accommodate substrates of varying widths, the width of the glue reservoir 330 must be easily adjustable. This is achieved by adjusting the spacing between the two glue baffles 322.

[0040] At the same time, in order to facilitate the cleaning of excess glue, waste glue and debris in the glue storage tank 330, the scraper frame 321 is set to a swing structure, so that the scraper frame 321 can rotate and swing to open a gap at the bottom of the glue storage tank 330, which is convenient for discharging and cleaning excess glue, waste glue and debris.

[0041] A linear guide rail 324 is provided on the top of the scraper holder 321, and a slide 325 is provided on the linear guide rail 324; the glue baffle seat 323 is fixed on the slide 325, and the glue baffle 322 is fixed on the glue baffle seat 323; the glue groove adjustment screw rod 328 is horizontally passed through the scraper connecting plate 33, and its other end is engaged with the threaded hole of the glue baffle seat 323; by rotating the glue groove adjustment screw rod 328, the glue baffle seat 323 can be driven to slide along the linear guide rail 324, thereby adjusting the distance between the two glue baffles 322.

[0042] To facilitate the removal of residual glue, waste glue, and debris from the glue storage tank 330, the scraper frame 321 is configured as a swinging mechanism. This allows the scraper frame 321 to rotate and swing, opening a gap at the bottom of the glue storage tank 330, thereby facilitating the removal and removal of residual glue, waste glue, and debris. The adjustment cylinder 35 is fixed to the frame 1. Its output shaft is hingedly connected to a push rod 39, which is horizontally fixed to the scraper connecting plate. The scraper connecting plate is also fixed to a rotating shaft 37, which is sleeved with a bearing and fixed to the frame 1. The adjustment cylinder rotates the scraper connecting plate about the rotating shaft, which in turn rotates the scraper frame and other components fixed to the scraper connecting plate, opening a gap at the bottom of the glue storage tank 330.

[0043] The floating coating roller assembly 36 comprises a coating roller 361, a roller swing arm 362, and a swing arm cylinder 363. The coating roller 361 is horizontally positioned and attached to one side of the coating steel roller 31. Its two ends are fixed to the roller swing arm 362. The other end of the roller swing arm 362 is hinged to the output shaft of the swing arm cylinder 363, which is fixed to the frame 1. A second rotating shaft 364 is horizontally fixed to the middle of the roller swing arm 362. This second rotating shaft 364 is hinged to the frame 1 after being fitted with a bearing. The swing arm cylinder 363 rotates the roller swing arm 362, adjusting the gap between the coating roller 361 and the coating steel roller 31 to accommodate materials of varying thicknesses.

[0044] The substrate to be composited is placed on the first unwinding assembly 2. The substrate is a cylindrical coil sleeved on the inflatable shaft 21 and is rotated to unwind the substrate, so that the substrate is transported backward to the corresponding process.

[0045] The first unwinding assembly 2 includes an inflatable shaft 21 , a guide roller, a tensioning roller, and an unwinding motor 22 .

[0046] The drying assembly 4 includes a drying box 41, a cooling roller 42, and an oven lift assembly 43. The drying box 41 is positioned above the cooling roller 42, with a concave bottom surface that mates with the outer wall of the cooling roller 42. Several electric heating rods are located within the drying box 41. A cavity is defined in the center of the cooling roller 42, containing coolant. The oven lift assembly 43 allows the drying box 41 to be raised or lowered vertically.

[0047] There are several guide tensioning components, which are arranged between the components, so that the incoming materials are conveyed tautly and straight to the processing components.

[0048] The composite device 7 includes a floating composite rubber roller assembly 71 and a rear traction steel roller 72;

[0049] The second unwinding assembly 5 includes an air shaft 21 and a material unwinding motor 22;

[0050] The material receiving assembly 8 comprises a rewinding rubber roller, a material receiving motor, and a rewinding flat push rubber roller assembly.

[0051] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A hot melt adhesive laminating machine, characterized by: It includes a frame, a first unwinding assembly, a gluing device, a drying assembly, a second unwinding assembly, a guide tensioning assembly, a compounding device, and a material receiving assembly; The frame is vertically arranged, including a front mounting plate and a rear mounting plate arranged vertically at intervals; a first unwinding assembly, a gluing device, a drying assembly, a guide tensioning assembly, a compounding device, a second unwinding assembly, and a material receiving assembly are arranged in sequence from left to right between the front mounting plate and the rear mounting plate; The gluing device includes a gluing steel roller, a scraper assembly, a scraper connecting plate, a driving motor, an adjusting cylinder, and a floating gluing roller assembly; the driving motor is used to drive the gluing steel roller, and the adjusting cylinder is used to drive the scraper connecting plate; The frame is provided with a horizontally arranged glue coating steel roller; one side of the glue coating steel roller is provided with a horizontally arranged scraper assembly; The scraper connecting plates are two pieces, which are arranged opposite to each other, are respectively arranged on the inner side of the frame and are hingedly connected to the frame; The scraper assembly includes a scraper frame, a rubber baffle, a rubber baffle seat, a guide rail, a slide, a scraper blade, a scraper pressure plate, and a rubber groove adjustment screw; the scraper frame is horizontally arranged, and its left and right ends are respectively fixed on the scraper connecting plate, and an L-shaped groove is provided on the inner side of the scraper connecting plate; the scraper blade is fixed to the bottom of the scraper frame through the scraper pressure plate; the upper end of the scraper blade is arranged in the L-shaped groove; There are two glue baffles, each of which is arranged in an L-shaped groove of the scraper frame; the outer side of the glue baffle is an arc surface, and the arc surface fits the arc outer wall of the glue coating steel roller; A glue storage tank with an upper opening is formed between the glue coating steel roller, the scraper frame and the glue baffle plate; A linear guide is provided on the top of the scraper frame, and a slide is sleeved on the linear guide; the rubber baffle seat is fixed on the slide, and the rubber baffle is fixed on the rubber baffle seat; the rubber groove adjustment screw rod is horizontally passed through the scraper connecting plate, and the other end thereof is engaged with the threaded hole of the rubber baffle seat; There are several guide tensioning components, which are arranged between the components.

2. The hot melt adhesive laminating machine according to claim 1, characterized in that: The regulating cylinder is fixed on the frame, and its output shaft is hinged to the push rod, which is horizontally fixed on the scraper connecting plate; the scraper connecting plate is also fixed with a rotating shaft, which is fixed on the frame after being sleeved with a bearing.

3. The hot melt adhesive laminating machine according to claim 2, characterized in that: The floating coating rubber roller assembly includes a coating pressure roller, a pressure roller swing arm, and a swing arm cylinder; the coating pressure roller is horizontally arranged and attached to one side of the glue-coated steel roller, and its two ends are respectively fixed on the pressure roller swing arm, and the other end of the pressure roller swing arm is hinged to the swing arm cylinder output shaft, and the swing arm cylinder body is fixed on the frame; a second rotating shaft is horizontally fixed to the middle of the pressure roller swing arm, and the second rotating shaft is hinged to the frame after being provided with a bearing.

4. The hot melt adhesive laminating machine according to claim 3, characterized in that: The first unwinding assembly includes an air shaft, a guide roller, a tensioning roller, and an unwinding motor.

5. The hot melt adhesive laminating machine according to claim 4, characterized in that: The drying assembly includes a drying box, a cooling roller, and an oven lifting assembly. The drying box is arranged above the cooling roller, and its bottom is a concave arc surface that fits the outer wall of the cooling roller; a number of electric heating rods are arranged in the drying box; a cavity is provided in the middle of the cooling roller, and a coolant is provided in the cavity; the oven lifting assembly adjusts the vertical lifting height of the drying box.

6. The hot melt adhesive laminating machine according to any one of claims 1 to 5, characterized in that: The composite device comprises a floating composite rubber roller assembly and a rear traction steel roller.

7. The hot melt adhesive laminating machine according to claim 6, characterized in that: The second unwinding assembly includes an air shaft and an unwinding motor.

8. The hot melt adhesive laminating machine according to claim 7, characterized in that: The composite device comprises a floating composite rubber roller assembly and a rear traction steel roller.

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