A membrane type solvent-free laminating machine

Abstract

A film-type solvent-free laminating machine, the frame includes: the frame includes a first wall panel assembly, a second wall panel assembly, a top plate arranged between the top of the first wall panel assembly and the second wall panel assembly, and a wooden board conveying device erected between the first wall panel assembly and the second wall panel assembly; according to the film material conveying direction, it includes an unwinding device, a storage device, a coating device, a compounding device, a material head traction device and a waste material winding device in sequence. The present invention changes the process method, changes the original glue coating on the wooden board to glue coating on the roll film material, uses a five-roll coating technology, makes the coating uniform, the glue amount is controllable, the glue amount is greatly reduced, and the coating efficiency is improved; develops a coating storage device, makes the coating process continuous, the coating interval is controllable, and the film tension is stable, realizing two modes of interval fixed-length coating and continuous coating; changes the original two rubber rollers to be compounded, and changes to an adjustable lift rubber roller and a hydraulically driven steel roller to be compounded, so that the compounding quality is stable, and there are no bubbles and other undesirable phenomena after compounding.

Description

Technical Field

[0001] The invention relates to a solvent-free laminating machine, in particular to a membrane plate type solvent-free laminating machine. Background Art

[0002] In the decorative board industry, a device for applying glue on sheet boards and then compounding with roll film materials has been applied. The entire process of the original equipment is to apply glue on the wood board, such as a composite process of PP film and solid wood board with Chinese patent publication number CN108943197A, which includes the following steps: preparation of solid wood unit boards; control of moisture content: control of moisture content of the prepared solid wood unit boards; gluing of solid wood unit boards: applying adhesive on the surface of solid wood unit boards; preparation of PP film: preparation of PP film with a width of 65mm~350mm and a thickness of 0.6mm~2mm; assembly: laying the PP film flat between two solid wood unit boards for assembly, laying a PP film between every two solid wood unit boards, the number of assembly layers is N, and the number of PP films required is N-1; hot pressing: after the assembly is completed, hot pressing is performed; cold pressing: after the hot pressing is completed, the board is transferred to the cold press for cold pressing within 2~3min. This type of gluing method results in uneven coating, large amount of glue applied, and low coating efficiency; the wood board and film are laminated using two rubber rollers, the lamination quality is unstable, and bubbles are generated during lamination; solvent-based adhesives are used, which are highly polluting and have solvent residues in the material itself. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a membrane plate type solvent-free laminating machine, which has uniform and controllable glue coating, stable laminating quality without bubbles, uses solvent-free adhesive, has no solvent residue, and meets national environmental protection requirements.

[0004] To solve the above technical problems, the technical solution of the present invention is: a film-type solvent-free laminating machine, the frame includes, the frame includes a first wall panel assembly, a second wall panel assembly, a top plate arranged between the top of the first wall panel assembly and the second wall panel assembly, and a wooden board conveying device erected between the first wall panel assembly and the second wall panel assembly; according to the film material conveying direction, it includes a unwinding device, a material storage device, a coating device, a compounding device, a material head traction device and a waste material winding device in sequence; the unwinding device includes an unwinding bracket, a pneumatic pressing and fixing material connection mechanism and a correction mechanism arranged on the unwinding bracket for connecting the film, the unwinding bracket is provided with two fixed stations for installing the roll film material, the correction mechanism includes a sliding seat that slides with the unwinding bracket and a driving mechanism for linearly moving the unwinding bracket. The driving mechanism is movable; the material storage device includes a material storage swing arm, a material storage roller arranged on the material storage swing arm and a material storage cylinder driving the material storage swing arm to swing, and the film material passes through the material storage roller; the coating device includes a metering steel rod, a coating swing arm, a coating pressure roller arranged on the coating swing arm and cooperating with the metering steel rod, and a coating cylinder driving the coating swing arm, the film material passes between the coating pressure roller and the metering steel rod, and the material storage roller is linked to the coating pressure roller; the composite device includes a composite steel rod, a hydraulic cylinder driving the composite steel rod to move up and down, and a composite rubber roller arranged below the composite steel rod, and the film material and the wooden board pass through the composite device at the same time; the material head traction device includes a traction lower roller, a traction upper roller arranged above the traction lower roller, a traction cylinder driving the traction upper roller, and a detection probe for detecting the thickness of the wooden board and the film material. Principle of the present invention: the unwinding device unwinds the roll film material by automatic tension control, and can realize constant tension in conveying the film material to the coating area; the five-roll coating device can evenly coat the film material with adhesive while ensuring a small coating amount; the pneumatic swing-arm type material storage device is located in front of the coating cooling roller, and is linked with the opening and closing of the coating pressure roller, which provides the possibility for intermittent coating with stable tension; the film material enters the compounding device through the film route, and the sheet wood board enters the compounding device through the wood board conveying device, and the two are compounded at the compounding device; the material head traction device can traction the material film that has not entered the continuous working mode after compounding before each continuous coating starts, so as to realize constant speed operation; the waste material winding device will collect the material head without glue coating or the material head without compounding that passes through the material head traction device as waste.

[0005] As an improvement, the material head traction device and the waste material winding device are arranged on the first wall panel assembly, and the unwinding device is arranged on the top of the first wall panel assembly; the material storage device and the compounding device are arranged on the second wall panel assembly, the coating device is arranged on the top of the second wall panel assembly, and the wooden board conveying device is arranged below the top plate.

[0006] As an improvement, the end of the wooden board conveying device is a finished product output area, and the finished product output area is provided with a side positioning and material film cutting device.

[0007] As an improvement, the positioning station includes a U-shaped groove opened on the unwinding bracket, a locking pin that can extend into the U-shaped groove and a locking cylinder for starting the locking pin; the pneumatic pressing and fixing material receiving mechanism includes a material receiving fixed roller, a material receiving movable roller and a material receiving cylinder that drives the material receiving movable roller to approach or move away from the material receiving fixed roller.

[0008] As an improvement, the top plate is provided with a transition roller group for the film material to pass through.

[0009] As an improvement, the coating device also includes a preheating mechanism for preheating the film material.

[0010] As an improvement, during operation, the opening and closing interval of the coating roller is set according to the length of the wooden board. When the coating roller is opened, the storage swing arm drives the storage roller to start storing material to achieve constant tension. When the coating roller is closed, the storage roller retracts to ensure constant tension.

[0011] As an improvement, the waste material winding device is arranged on the left side of the first wall panel assembly, and the waste material winding device adopts a servo-driven single cantilever air shaft to fix the material roll.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) The film material unwinding uses a double station, which can realize the roll change without stopping the machine;

[0014] (2) Apply glue on the film material, which can be applied in two modes: continuous or intermittent coating, with high coating accuracy and good uniformity;

[0015] (3) The adjustable lifting rubber roller and hydraulically driven steel roller laminating device ensures stable laminating quality and no bubbles or other undesirable phenomena after laminating;

[0016] (4) The adhesive uses solvent-free adhesive, there is no VOCs emission in the entire process, and there is no solvent residue in the finished product;

[0017] (5) The film coating composite process improves production efficiency and yield rate;

[0018] (6) Waste rolls can be collected as necessary, and the process ensures a clean site. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the present invention.

[0020] Figure 2 Schematic diagram of the unwinding device.

[0021] Figure 3 Figure I is the linkage state diagram of the storage device and the coating device.

[0022] Figure 4 This is the linkage state diagram II of the storage device and the coating device.

[0023] Figure 5 Schematic diagram of the composite device. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] like Figure 1 As shown, a membrane-type solvent-free laminating machine includes a frame, the frame includes a first wall panel assembly 8, a second wall panel assembly 9, a top plate 11 arranged between the tops of the first wall panel assembly 8 and the second wall panel assembly 9, and a wooden board conveying device 10 erected between the first wall panel assembly 8 and the second wall panel assembly 9; the first wall panel assembly 8 and the second wall panel assembly are arranged on the left and right, and the wall panel assemblies include a front wall panel and a rear wall panel arranged in parallel; the top plate 11 is provided with a transition roller group for film material to pass through, and the wooden board conveying device 11 is arranged below the top plate 11, the film material is unwound from the first wall panel assembly 8, sent to the second wall panel assembly 9 through the transition roller group, and then returned to the first wall panel assembly 8 through the wooden board conveying device 11, the film material is roughly C-shaped, and the overall length of the equipment is shorter; the first wall panel assembly 8 and the second wall panel assembly 9 are both two-layer structures, the equipment is installed upward, and less space is occupied.

[0026] like Figure 1 As shown, according to the film material conveying direction, the unwinding device 1, the material storage device 2, the coating device 3, the compounding device 4, the material head traction device 5 and the waste material winding device 6 are included in sequence.

[0027] like Figure 2As shown, the unwinding device 1 includes an unwinding bracket 15, a pneumatic pressing and fixing material connection mechanism 13 for film connection arranged on the unwinding bracket 15, a pneumatic brake unwinding drive mechanism and a correction mechanism 14. When working, the roll film material reaches the storage device 2 after passing through the pneumatic brake unwinding drive mechanism and the pneumatic pressing and fixing material connection mechanism 13; the unwinding bracket 15 is provided with two fixed stations for installing the roll film material, and the two fixed stations are symmetrically arranged, and two roll film materials can be placed at the same time, one of which is the working film material and the other is for standby, and the positioning station includes a U-shaped groove 13 and a locking mechanism 12 opened on the unwinding bracket 15, and the locking mechanism 12 includes a U-shaped groove 13 that can be inserted into the U-shaped groove 13 The locking pin 122 inside and the locking cylinder 121 that drives the locking pin 122 facilitate the entry of the unwinding air shaft while ensuring the safety of operation; the pneumatic pressing and fixing material receiving mechanism 13 includes a fixed material receiving roller 133, a movable material receiving roller 132 and a material receiving cylinder 131 that drives the movable material receiving roller 132 to approach or move away from the fixed material receiving roller 133, and the pneumatic pressing and fixing material receiving mechanism 13 is located in the middle of the unwinding bracket 15 to achieve material receiving when stopping the machine for reel change; the deviation correction mechanism 14 includes a slide seat 142 that slides with the unwinding bracket 15 and a driving mechanism 141 that drives the unwinding bracket 15 to move linearly, and the deviation correction mechanism 14 realizes the overall lateral movement of the roll film material to achieve the deviation correction effect.

[0028] like Figure 3 , 4 As shown, the coating device 3 is a five-roll coating device 3 with preheating, and the coating device 3 includes a metering steel rod 34, a coating swing arm 32, a coating pressure roller 31 arranged on the coating swing arm 32 and cooperating with the metering steel rod 34, and a coating cylinder 33 driving the coating swing arm 32.

[0029] like Figure 3 , 4 As shown, the storage device 2 includes a storage swing arm 21, a storage roller 22 arranged on the storage swing arm 21, and a storage cylinder 23 driving the storage swing arm 21 to swing, and the film material passes through the storage roller 22. The coating pressure roller 31 is linked with the pre-coating storage device 2 to realize two modes: continuous coating and interval fixed-length coating; Figure 3 As shown, mode 1 is continuous coating. After the five rollers are glued, the coating cylinder 33 extends to drive the coating swing arm 32 to press the coating pressure roller 31 with the metering steel roller. At this time, the storage swing arm 21 does not move, and the storage roller 22 maintains a stable guide; Figure 4 As shown, mode two is interval coating. After the five rollers are glued, the coating cylinder 33 retracts to drive the coating swing arm 32 to separate the coating pressure roller 31 from the metering steel roller. The storage swing arm 21 moves under the drive of the storage cylinder 23, and the storage roller 22 moves. The storage length is equal to the length released when the coating pressure roller 31 is separated, ensuring stable tension during interval coating.

[0030] like Figure 5As shown, the composite device 4 includes a composite steel rod 41, a hydraulic cylinder 42 for driving the composite steel rod 41 to move up and down, and a composite rubber roller 43 arranged below the composite steel rod 41, and the film material and the wooden board pass through the composite device 4 at the same time; the hydraulic cylinder 42 drives the composite steel rod 41 to move, and the adjustable gap spacing mechanism 44 is arranged at the bottom of the composite steel roller end, which can be adjusted accordingly according to the sheet materials of different thicknesses, and the adjustable gap spacing mechanism 44 has a gap digital display device to quickly read the current spacing; the large roller diameter composite rubber roller 43 is arranged at the bottom of the composite steel roller, and the bottom of the rubber roller end is provided with a rubber layer wear alignment mechanism 45. When the rubber layer is worn, the desired composite effect can be achieved by adjusting the wear alignment mechanism.

[0031] The wooden board conveying device 10 inputs the wooden boards into the area of ​​the compounding line, and has a passive area and an active area, and can perform manual board feeding operations. The sheet wooden boards are compounded with the film material during the conveying process. The end of the wooden board conveying device is the finished product output area, and the finished product output area is provided with a side positioning and material film cutting device 7; manual material film cutting can be performed, automatic material film cutting can be set, the wooden boards can be manually removed, and they can also be automatically stacked and collected.

[0032] The material head traction device 5 includes a traction lower roller, a traction upper roller arranged above the traction lower roller, a traction cylinder driving the traction upper roller, and a detection probe for detecting the thickness of the wood board and the film material. The traction pressing interval changes accordingly with the detection result.

[0033] The waste material reeling device 6 is arranged on the left side of the first wall panel assembly 8 and above the finished product output area. The waste material reeling device 6 adopts a servo-driven single cantilever air shaft to fix the material roll.

[0034] Principle of the present invention: The unwinding device 1 unwinds the roll film material by automatic tension control, and can realize constant tension in conveying the film material to the coating area; the five-roll coating device 3 can evenly coat the film material with adhesive while ensuring a small coating amount, and at the same time, a preheating device is provided to make the film material evenly heated and stress released before coating, thereby reducing the temperature difference of the film material during the coating process, thereby shortening the heating process, reducing the temperature error, and improving the coating effect; the pneumatic swing arm type material storage device 2 is located in front of the coating cooling roller, and is linked to the opening and closing of the coating pressure roller 31, which provides the possibility of intermittent coating with stable tension; the film The material enters the compounding device 4 through the film route, and the sheet wood board enters the compounding device 4 through the wood board conveying device. The two are compounded at the compounding device 4. The adjustable stroke mechanism can be used to position and control the distance between the steel roller and the rubber roller according to the thickness of the wood board to achieve stable pressure compounding and ensure the compounding effect; the material head traction device 5 can pull the material film that has not entered the continuous working mode after compounding before each continuous coating starts, so as to achieve constant speed operation; the waste material winding device 6 will collect the material heads without glue coating or compounding that pass through the material head traction device 5 as waste.

Claims

1. A membrane type solvent-free laminating machine, comprising a frame, wherein the frame comprises a first wall panel assembly, a second wall panel assembly, a top panel arranged between the tops of the first wall panel assembly and the second wall panel assembly, and a wood board conveying device arranged between the first wall panel assembly and the second wall panel assembly; characterized in that : According to the film material conveying direction, it includes an unwinding device, a material storage device, a coating device, a compounding device, a material head traction device and a waste material winding device in sequence; the unwinding device includes an unwinding bracket, a pneumatic pressing and fixing material splicing mechanism and a correction mechanism for splicing the film arranged on the unwinding bracket, the unwinding bracket is provided with two fixed stations for installing the roll film material, the pneumatic pressing and fixing material splicing mechanism includes a splicing fixed roller, a splicing movable roller and a splicing cylinder driving the splicing movable roller to approach or move away from the splicing fixed roller, the pneumatic pressing and fixing material splicing mechanism is located in the middle of the unwinding bracket to realize the splicing of rolls without stopping the machine. The film material passes through the storage roller; the coating device comprises a metering steel roller, a coating swing arm, a coating pressure roller arranged on the coating swing arm and cooperating with the metering steel roller, and a coating cylinder driving the coating swing arm. The film material passes between the coating pressure roller and the metering steel roller, and the storage roller is linked with the coating pressure roller to realize two modes: continuous coating and interval fixed-length coating; Mode 1 is Continuous coating, after the five rollers are glued, the coating cylinder extends out to drive the coating swing arm to press the coating pressure roller and the metering steel roller together. At this time, the storage swing arm does not move, and the storage roller maintains a stable guide; Mode 2 is interval coating. After the five rollers are glued, the coating cylinder retracts to drive the coating swing arm to separate the coating pressure roller from the metering steel roller. The storage swing arm moves under the drive of the storage cylinder, and the storage roller moves. The storage length is equal to the length released when the coating pressure roller is separated, ensuring stable tension during interval coating; the composite device includes a composite steel roller, a hydraulic cylinder that drives the composite steel roller to move up and down, and a composite steel roller arranged below the composite steel roller. The rubber roller, film material and wooden board pass through the composite device at the same time; the material head traction device includes a traction lower roller, a traction upper roller arranged above the traction lower roller, a traction cylinder driving the traction upper roller and a detection probe for detecting the thickness of the wooden board and the film material; the material head traction device and the waste material winding device are arranged on the first wall panel assembly, and the unwinding device is arranged on the top of the first wall panel assembly; the material storage device and the composite device are arranged on the second wall panel assembly, the coating device is arranged on the top of the second wall panel assembly, and the wooden board conveying device is arranged below the top plate; the top plate is provided with a transition roller group for the film material to pass through.

2. A film-type solvent-free laminating machine according to claim 1, characterized in that The end of the wooden board conveying device is the finished product output area, and the finished product output area is provided with a side positioning and material film cutting device.

3. A film-type solvent-free laminating machine according to claim 1, characterized in that The fixed workstation includes a U-shaped groove opened on the unwinding bracket, a locking pin that can extend into the U-shaped groove, and a locking cylinder that starts the locking pin.

4. A film-type solvent-free laminating machine according to claim 1, characterized in that :The coating device also includes a preheating mechanism for preheating the film material.

5. A film-type solvent-free laminating machine according to claim 1, characterized in that : During operation, the opening and closing interval of the coating roller is set according to the length of the wooden board. When the coating roller is opened, the storage swing arm drives the storage roller to start storing material to achieve constant tension. When the coating roller is closed, the storage roller retracts to ensure constant tension.

6. A film-type solvent-free laminating machine according to claim 1, characterized in that The waste winding device is arranged on the left side of the first wall panel assembly, and the waste winding device adopts a servo-driven single cantilever air shaft to fix the material roll.

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