Wood chip film laminating machine and film laminating method thereof

Abstract

The invention discloses a wood chip film laminating machine and a film laminating method thereof, and relates to the technical field of film laminating, the wood chip film laminating machine comprises a rack, the rack is sequentially provided with a film feeding mechanism, a first chip feeding mechanism, a pressing mechanism, an overturning mechanism, a conveying mechanism, a second chip feeding mechanism and a hot pressing mechanism, the film feeding mechanism conveys a thermoplastic film to the first chip feeding mechanism, and the second chip feeding mechanism conveys the thermoplastic film to the second chip feeding mechanism; the thermoplastic plastic film and the wood chips are sequentially treated by the first chip feeding mechanism, the pressing mechanism, the turnover mechanism, the conveying mechanism, the second chip feeding mechanism, the hot pressing mechanism, the cutting mechanism and the like, so that double-sided film coating of the wood chips is realized, the operation is easier, errors are not easy to occur, and the automation degree is high.

Description

Technical Field

[0001] The invention relates to the technical field of film laminating, and in particular to a wood chip film laminating machine and a film laminating method thereof. Background Art

[0002] Wooden cards are made of multiple stacked wood chips, and adjacent stacked wood chips are bonded together by hot melt adhesive. The method of manually covering the wood chips with hot melt adhesive film is inefficient. Chinese patent CN117817783A discloses a wood chip laminating machine and a wood chip laminating method, which realize wood chip laminating through the cooperation of multiple infrared sensing devices. The positions of multiple infrared sensing devices need to be strictly set, which is prone to deviations. Summary of the invention

[0003] In view of the defects of the above-mentioned prior art, the object of the present invention is to provide a wood chip laminating machine and a laminating method thereof, which adopts a hot melt adhesive film feeding mechanism to achieve laminating and bonding of multiple wood chips.

[0004] One of the purposes of the present invention is achieved by the following technical solution:

[0005] A wood chip laminating machine comprises a frame, on which a film feeding mechanism, a first film feeding mechanism, a pressing mechanism, a turning mechanism, a conveying mechanism, a second film feeding mechanism and a hot pressing mechanism are sequentially arranged, the film feeding mechanism is used to transfer a thermoplastic film to the first film feeding mechanism, there are two first film feeding mechanisms and they are arranged in parallel front and back on the frame, one side of the first film feeding mechanism is provided with an electromagnetic heating roller for heating a first wood chip, the first film feeding mechanism is used to cover the heated first wood chip on the thermoplastic film, the pressing mechanism is used to press the thermoplastic film and the first wood chip, the turning mechanism is used to turn over the first wood chip, a cutting knife for cutting the thermoplastic film is provided at the end of the turning mechanism, a pasting table is fixed below the hot pressing mechanism, the conveying mechanism is used to convey the turned first wood chip to the pasting table, the second film feeding mechanism respectively sends two second wood chips to the upper side and the lower side of the first wood chip, and the hot pressing mechanism is used to paste the second wood chip and the first wood chip together.

[0006] Furthermore, the film feeding mechanism includes a film feeding frame, on which a placing roller, a first guide roller, a second guide roller, a third guide roller, a fourth guide roller and a fifth guide roller are fixed, the placing roller is used to place the rolled hot melt adhesive film, the first guide roller is arranged at the rear and lower part of the placing roller, the second guide roller is arranged at the rear and lower part of the first guide roller, a guide plate is arranged between the first guide roller and the second guide roller, the third guide roller is arranged at the rear and lower part of the second guide roller, the fourth guide roller is arranged in parallel behind the third guide roller, and the fifth guide roller is arranged at the rear and lower part of the fourth guide roller.

[0007] Furthermore, a bracket and a lower limit plate are fixed on the film feeding frame, a first cylinder is fixed on the bracket, the first cylinder is telescoped downward and an upper limit plate is fixed on the bottom, and the lower limit plate is arranged directly below the upper limit plate.

[0008] Furthermore, the first sheet feeding mechanism includes a conveying roller, a guide rail frame, a conveying rail and a mobile frame. The conveying direction of the conveying roller is perpendicular to the conveying direction of the thermoplastic film. The electromagnetic heating roller is arranged at the front end of the conveying roller. The guide rail frame is fixed above the conveying roller. The conveying rail is fixed on the guide rail frame. The mobile frame is driven by a driving mechanism and moves on the conveying rail. A second cylinder is fixed on the mobile frame. The second cylinder is extended downward and an adsorption component is fixed on the bottom. The adsorption component is used to adsorb the first wood chip on the conveying roller.

[0009] Furthermore, the adsorption assembly includes a first adsorption frame, a guide rod, a second adsorption frame and multiple adsorption units, the first adsorption frame is fixed to the bottom of the second cylinder, the bottom of the guide rod is fixed to the top of the first adsorption frame and the top is movably arranged on the movable frame, the second adsorption frame is fixed under the first adsorption frame through a connecting rod, the adsorption unit includes multiple adsorption rods and a vacuum adsorption plate, the top of the adsorption rod is movably arranged on the first adsorption frame, the bottom of multiple adsorption rods are commonly fixed with the vacuum adsorption plate, the adsorption rod is sleeved with a spring, the spring is arranged between the first adsorption frame and the vacuum adsorption plate, the second adsorption frame is opened with a through hole, the vacuum adsorption plate is arranged in the through hole, and when no force is applied, the bottom surface of the vacuum adsorption plate is lower than the bottom surface of the second adsorption frame.

[0010] Furthermore, the laminating mechanism comprises a laminating frame, a lower laminating roller and an upper laminating roller, wherein the laminating frame is fixed on the frame, the lower laminating roller is arranged on the laminating frame, and the upper laminating roller is arranged directly above the lower laminating roller and can move up and down.

[0011] Furthermore, the flipping mechanism includes a flipping frame, a first conveyor belt, a limiting roller, a first guide frame and a second guide frame, the flipping frame and the first guide frame (54) are fixed on the frame, the first conveyor belt and the limiting roller are arranged on the flipping frame, the limiting roller is arranged above the end of the first conveyor belt, a gap is left between the first conveyor belt and the limiting roller, the first guide frame is arranged behind the flipping frame, a gap is also left between the first guide frame and the first conveyor belt, the first guide frame is arranged to be tilted downward on the side close to the first conveyor belt, the lowest side of the first guide frame is lower than the gap between the first conveyor belt and the limiting roller, the second guide frame is fixed on the flipping frame and arranged below the first guide frame, the second guide frame is tilted downward and the tilting direction is opposite to the tilting direction of the first guide frame, the second guide frame is arranged above the conveying mechanism, and the cutting knife is arranged on the second guide frame.

[0012] Furthermore, the conveying mechanism includes a second conveying belt, one end of the second conveying belt is arranged below the turning mechanism, and the other end of the second conveying belt is close to the pasting table.

[0013] Furthermore, a vacuum adsorption surface is provided on the pasting table, and the vacuum adsorption surface is lower than the conveying surface of the conveying mechanism; the second sheet feeding mechanism includes a manipulator and conveying belts arranged on both sides of the manipulator, and the manipulator is used to deliver the second wood chip on a conveying belt to the pasting table and to deliver the composite sheet on the pasting table to another conveying belt.

[0014] The purpose of the present invention is achieved by adopting the following technical solution 2:

[0015] A wood chip laminating method is applied to the above-mentioned wood chip laminating machine, comprising the following steps: a film feeding mechanism conveys a thermoplastic film to the position of the first film feeding mechanism, two first film feeding mechanisms work simultaneously, convey the heated first wood chip to the thermoplastic film and cover it on the thermoplastic film, the thermoplastic film is heated and adhered to the bottom surface of the first wood chip, a pressing mechanism further presses the thermoplastic film and the first wood chip, a turning mechanism turns the first wood chip backwards, a cutting knife cuts off the thermoplastic film, at this time, the turned bottom surface of the first wood chip covers the thermoplastic film, the second film feeding mechanism places a second wood chip on a pasting table, the first wood chip is conveyed to the pasting table by the conveying mechanism and pressed on the second wood chip, the second film feeding mechanism then places another second wood chip on the first wood chip, the hot pressing mechanism performs hot pressing on the second wood chip and the first wood chip downwards, after the hot pressing is completed, the hot pressing is left to stand for a specific time, and the second film feeding mechanism removes the hot pressed composite sheet from the pasting table.

[0016] The beneficial effects of the present invention are:

[0017] The present invention transmits the thermoplastic film to the first film feeding mechanism by arranging a film feeding mechanism; automatically conveys the wood chips to the film coating position at equal intervals by arranging the first film feeding mechanism; pre-compresses the film-coated wood chips by arranging a pressing mechanism to enhance the bonding firmness between the wood chips and the hot melt adhesive film; realizes double-sided film coating of the wood chips by arranging a flipping mechanism; automatically conveys the double-sided film-coated wood chips to the pasting table by arranging a conveying mechanism; presses and shapes a plurality of wood chips by arranging a hot pressing mechanism to make them more firm; realizes loading and unloading of wood chips by arranging a robot, and realizes transportation and collection of wood chips by arranging a conveying belt, etc. The present invention is easy to operate and has a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the wood chip laminating machine in the present invention;

[0019] Figure 2 It is a structural schematic diagram of the film feeding mechanism in the wood chip laminating machine of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the first chip feeding mechanism in the wood chip laminating machine of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the adsorption component in the wood chip laminating machine of the present invention;

[0022] Figure 5 It is a structural schematic diagram of a pressing mechanism, a turning mechanism, a conveying mechanism and a hot pressing mechanism in a wood chip laminating machine of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the second chip feeding mechanism in the wood chip laminating machine of the present invention.

[0024] In the figure: 1, frame; 2, film feeding mechanism; 21, film feeding frame; 22, placement roller; 23, first guide roller; 24, second guide roller; 25, third guide roller; 26, fourth guide roller; 27, fifth guide roller; 28, guide plate; 29, bracket; 210, lower limit plate; 211, first cylinder; 212, upper limit plate; 3, first film feeding mechanism; 31, conveying roller; 32, guide rail frame; 33, conveying guide rail; 34, moving frame; 35, driving mechanism; 36, second cylinder; 37, adsorption assembly; 371, first adsorption frame; 372, guide rod; 373, second adsorption frame ; 374, connecting rod; 375, adsorption rod; 376, vacuum adsorption plate; 377, spring; 378, through hole; 4, pressing mechanism; 41, pressing frame; 42, lower pressing roller; 43, upper pressing roller; 44, third cylinder; 5, turning mechanism; 51, turning frame; 52, first conveyor belt; 53, limiting roller; 54, first guide frame; 55, second guide frame; 6, conveying mechanism; 61, second conveyor belt; 7, second sheet feeding mechanism; 71, manipulator; 72, conveyor belt; 8, hot pressing mechanism; 9, electromagnetic heating roller; 10, cutting knife; 11, pasting table; 12, vacuum adsorption surface. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the invention more clearly understood, the invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Example 1

[0027] like Figure 1-6 As shown, this embodiment provides a wood chip laminating machine, including a frame 1, on which a film feeding mechanism 2, a first film feeding mechanism 3, a pressing mechanism 4, a turning mechanism 5, a conveying mechanism 6, a second film feeding mechanism 7 and a hot pressing mechanism 8 are sequentially arranged, the film feeding mechanism 2 is used to transfer the thermoplastic film to the first film feeding mechanism 3, there are two first film feeding mechanisms 3 and they are arranged in parallel front and back on the frame 1, one side of the first film feeding mechanism 3 is provided with an electromagnetic heating roller 9 for heating the first wood chip, the first film feeding mechanism 3 is used to cover the heated first wood chip on the thermoplastic film, the pressing mechanism 4 is used to press the thermoplastic film and the first wood chip, the turning mechanism 5 is used to turn over the first wood chip, and the end of the turning mechanism 5 is provided with a cutting knife 10 for cutting the thermoplastic film, a pasting table 11 is fixed below the hot pressing mechanism 8, the conveying mechanism 6 is used to convey the turned first wood chip to the pasting table 11, the second film feeding mechanism 7 sends two second wood chips to the upper and lower sides of the first wood chip respectively, and the hot pressing mechanism 8 is used to paste the second wood chip and the first wood chip together.

[0028] Specifically, the film feeding mechanism 2 conveys the thermoplastic film to the position of the first film feeding mechanism 3. The two first film feeding mechanisms 3 work simultaneously. The first film feeding mechanism 3 conveys the heated first wood chip to the thermoplastic film and covers it on the thermoplastic film. The thermoplastic film is heated and adheres to the bottom surface of the first wood chip. Since the first wood chip can only reach the thermoplastic film after being transported by the first film feeding mechanism 3 after being heated, the temperature of the first wood chip is limited during film coating. By controlling the temperature value, the hot melt adhesive film can adhere to the first wood chip but will not be completely melted, so as to ensure that the first wood chip can continue to be transported to the pressing mechanism 4 on the thermoplastic film.

[0029] The pressing mechanism 4 further presses the thermoplastic film and the first wood chip to increase the bonding strength between the two. The turning mechanism 5 turns the first wood chip backwards, and the cutting knife 10 cuts the thermoplastic film to ensure that the next first wood chip can be successfully turned over. At this time, the bottom surface of the turned first wood chip is covered on the thermoplastic film, so that the upper and lower surfaces of the first wood chip are covered with thermoplastic film. At this time, the thermoplastic film on the first wood chip has been pressed on the first wood chip, and the thermoplastic film under the first wood chip is pressed under the first wood chip, so the first wood chip can be driven to move on the conveying mechanism 6.

[0030] The second sheet feeding mechanism 7 places a second wood chip on the pasting table 11, the first wood chip is transported to the pasting table 11 by the conveying mechanism 6 and pressed on the second wood chip, the second sheet feeding mechanism 7 then places another second wood chip on the first wood chip, at this time the first wood chip is arranged between the two second wood chips, and the thermoplastic film is arranged between the first wood chip and the second wood chip, the hot pressing mechanism 8 hot presses the second wood chip and the first wood chip downward, after the hot pressing is completed, it is left to cool for a specific time, and then the second sheet feeding mechanism 7 removes the hot pressed composite sheet from the pasting table 11, completing the film coating and bonding of the wood chips.

[0031] refer to Figure 2 The film feeding mechanism 2 includes a film feeding frame 21, on which a placing roller 22, a first guide roller 23, a second guide roller 24, a third guide roller 25, a fourth guide roller 26 and a fifth guide roller 27 are fixed. The placing roller 22 is used to place the rolled hot melt adhesive film, the first guide roller 23 is arranged at the rear and lower part of the placing roller 22, the second guide roller 24 is arranged at the rear and lower part of the first guide roller 23, a guide plate 28 is arranged between the first guide roller 23 and the second guide roller 24, the third guide roller 25 is arranged at the rear and lower part of the second guide roller 24, the fourth guide roller 26 is arranged in parallel behind the third guide roller 25, and the fifth guide roller 27 is arranged at the rear and lower part of the fourth guide roller 26.

[0032] Furthermore, a bracket 29 and a lower limit plate 210 are fixed on the film feeding frame 21 . A first cylinder 211 is fixed on the bracket 29 . The first cylinder 211 is extended downward and an upper limit plate 212 is fixed on the bottom. The lower limit plate 210 is arranged directly below the upper limit plate 212 .

[0033] refer to Figure 3 The first sheet feeding mechanism 3 includes a conveying roller 31, a guide frame 32, a conveying rail 33 and a moving frame 34. The conveying direction of the conveying roller 31 is perpendicular to the conveying direction of the thermoplastic film. The conveying roller 31 can be provided with a limit sensor, which senses the position of the wood chip through the limit sensor to control and adjust the spacing between the wood chips. The electromagnetic heating roller 9 is arranged at the front end of the conveying roller 31. The guide frame 32 is fixed above the conveying roller 31. The conveying rail 33 is fixed on the guide frame 32. The moving frame 34 is driven by a driving mechanism 35 and moves on the conveying rail 33. A second cylinder 36 is fixed on the moving frame 34. The second cylinder 36 is telescoped downward and an adsorption component 37 is fixed at the bottom. The adsorption component 37 is used to adsorb the first wood chip on the conveying roller 31.

[0034] The conveying roller 31 and the electromagnetic heating roller 9 adopt the existing structure. The electromagnetic heating roller 9 preferably adopts a movable mode, and cooperates with the conveying roller 31 to heat the first wood chip. The first wood chip is sent to the bottom of the moving frame 34 through the conveying roller 31. During the conveying process, the first wood chip is heated by the electromagnetic heating roller 9, the second cylinder 36 is extended downward, the adsorption component 37 absorbs the first wood chip, the second cylinder 36 extends upward with the first wood chip, and the moving frame 34 moves the first wood chip to the top of the thermoplastic film and places the first wood chip on the thermoplastic film. The driving mechanism 35 adopts a screw assembly.

[0035] refer to Figure 4 The adsorption assembly 37 includes a first adsorption frame 371, a guide rod 372, a second adsorption frame 373 and a plurality of adsorption units. The first adsorption frame 371 is fixed to the bottom of the second cylinder 36. The bottom of the guide rod 372 is fixed to the top of the first adsorption frame 371 and the top is movably arranged on the movable frame 34. The second adsorption frame 373 is fixed below the first adsorption frame 371 through a connecting rod 374. The adsorption unit includes a plurality of adsorption rods 375 and a vacuum adsorption plate 376. The top of the adsorption rod 375 is movably arranged on the first adsorption frame 37 1 and the top cannot escape from the first adsorption frame 371, a vacuum adsorption plate 376 is fixed to the bottom of the plurality of adsorption rods 375, a spring 377 is sleeved on the adsorption rod 375, the spring 377 is arranged between the first adsorption frame 371 and the vacuum adsorption plate 376, a through hole 378 is opened on the second adsorption frame 373, the vacuum adsorption plate 376 is arranged in the through hole 378, and when no force is applied, the bottom surface of the vacuum adsorption plate 376 is lower than the bottom surface of the second adsorption frame 373, so as to prevent the second adsorption frame 373 from directly contacting the hot melt adhesive film.

[0036] refer to Figure 5The laminating mechanism 4 comprises a laminating frame 41, a lower laminating roller 42 and an upper laminating roller 43. The laminating frame 41 is fixed on the frame 1, the lower laminating roller 42 is arranged on the laminating frame 41, and the upper laminating roller 43 is arranged just above the lower laminating roller 42 and can move up and down. The upper laminating roller 43 can be moved up and down by a third cylinder 44. During the working process, the upper laminating roller 43 moves up and down continuously, continuously presses down the first wood board and the hot melt adhesive film, and continuously presses down the single hot melt adhesive film, so that the hot melt adhesive film can continuously move toward the rear end along the wood chip laminating machine.

[0037] refer to Figure 5 The turning mechanism 5 includes a turning frame 51, a first conveyor belt 52, a limiting roller 53, a first guide frame 54 and a second guide frame 55. The turning frame 51 and the first guide frame 54 are fixed on the frame 1. The first conveyor belt 52 and the limiting roller 53 are arranged on the turning frame 51. The limiting roller 53 is arranged above the end of the first conveyor belt 52. A gap is left between the first conveyor belt 52 and the limiting roller 53. The first guide frame 54 is arranged behind the turning frame 51. A gap is also left between the first guide frame 54 and the first conveyor belt 52. A guide frame 54 is arranged to be tilted downward on a side close to the first conveyor belt 52. The side of the first guide frame 54 close to the first conveyor belt 52 is the lowest side, which is lower than the gap between the first conveyor belt 52 and the limiting roller 53. The second guide frame 55 is fixed on the flip frame 51 and is arranged below the first guide frame 54. The second guide frame 55 is tilted downward and the tilting direction is opposite to that of the first guide frame 54. The second guide frame 55 is arranged above the conveying mechanism 6, and the cutting knife 10 is arranged on the second guide frame 55.

[0038] After being pressed by the pressing mechanism 4, the first wood chip enters the first conveyor belt 52, and then passes through the gap between the first conveyor belt 52 and the limiting roller 53. The end of the wood chip tilts upward under the guidance of the first guide frame 54. When the first wood chip leaves the gap between the first conveyor belt 52 and the limiting roller 53, the first wood chip falls downward along the first guide frame 54 under the action of gravity. During the falling process, the bottom of the first wood chip preferentially contacts the second guide frame 55. Under the joint influence of the first guide frame 54, the second guide frame 55 and the first conveyor belt 52, the bottom of the first wood chip gradually slides along the second guide frame 55, the first wood chip flips, and the original bottom surface of the first wood chip begins to cover the hot melt adhesive film. During the sliding process, the top height of the first wood chip becomes lower and lower. When the first wood chip is completely attached to the second guide frame 55, the cutting knife 10 is just set on the top of the first wood chip and cuts off the hot melt adhesive film. The first wood chip is disconnected from the hot melt adhesive film at the rear end, and the first wood chip falls freely along the second guide frame 55 to the conveying mechanism 6. The specific position of the cutting knife 10 can be set according to the size of the first wood chip, and the cutting knife 10 can also be set as an automatic telescopic structure, which can be extended upward relative to the second guide frame 55 to achieve cutting.

[0039] refer to Figure 5 The conveying mechanism 6 includes a second conveying belt 61 , one end of the second conveying belt 61 is arranged below the turning mechanism 5 , and the other end of the second conveying belt 61 is close to the pasting table 11 .

[0040] The pasting table 11 is provided with a vacuum adsorption surface 12, which is used to position the wood chip by vacuum adsorption. The vacuum adsorption surface 12 is slightly lower than the conveying surface of the conveying mechanism 6. The gap between the pasting table 11 and the conveying mechanism 6 is smaller than the size of the first wood chip to prevent the first wood chip from falling. In addition, the pasting table 11 is also provided with a centering component and a cutting mechanism. The centering component is used to center the position of the first wood chip to align the second wood chip for the next step of hot pressing. The cutting mechanism cuts the pressed board and finally cuts it into the required size.

[0041] refer to Figure 6 The second sheet feeding mechanism 7 includes a robot 71 and conveyor belts 72 arranged on both sides of the robot 71. The robot 71 is used to feed the second wood chip on one conveyor belt 72 to the pasting table 11 and to feed the composite sheet on the pasting table 11 to another conveyor belt 72.

[0042] Example 2

[0043] Based on the wood chip laminating machine in Example 1, this embodiment provides a wood chip laminating method, which specifically includes the following steps:

[0044] S1: placing the rolled hot melt adhesive film on the placing roller 22, and the hot melt adhesive film enters the first film feeding mechanism 3 under the guidance of the first guide roller 23, the second guide roller 24, the third guide roller 25, the fourth guide roller 26, the upper limit plate 212, the lower limit plate 210 and the fifth guide roller 27;

[0045] S2: The first wood chip is transported to a specific position via the conveying roller 31. During the transporting process, the first wood chip is heated by the electromagnetic heating roller 9, the second cylinder 36 is extended and retracted downward, the vacuum adsorption plate 376 preferentially contacts the first wood chip and adsorbs the first wood chip, the second cylinder 36 extends and retracts upward with the first wood chip, the driving mechanism 35 drives the moving frame 34 to move the first wood chip to the top of the thermoplastic film, the second cylinder 36 extends and retracts downward again, and the first wood chip is placed on the thermoplastic film, and the thermoplastic film is heated and adhered to the bottom surface of the first wood chip;

[0046] S3: The first wood chip moves to the laminating mechanism 4 together with the thermoplastic film, and the upper laminating roller 43 moves downward to laminarize the thermoplastic film and the first wood chip;

[0047] S4: The first wood chip enters the first conveyor belt 52 after being pressed by the pressing mechanism 4. When it moves to the end of the first conveyor belt 52, it passes through the gap between the first conveyor belt 52 and the limiting roller 53. The end of the first wood chip begins to tilt upward under the guidance of the first guide frame 54. When the first wood chip breaks away from the gap between the first conveyor belt 52 and the limiting roller 53, the first wood chip falls downward along the first guide frame 54 under the action of gravity. During the falling process, the bottom of the first wood chip contacts the second guide frame 55. Under the joint influence of the first guide frame 54, the second guide frame 55 and the first conveyor belt 52, the bottom of the first wood chip gradually slides along the second guide frame 55, the first wood chip flips, and the original bottom surface of the first wood chip gradually covers the hot melt adhesive film. When the first wood chip is completely attached to the second guide frame 55, the cutting knife 10 cuts off the hot melt adhesive film, the first wood chip is disconnected from the hot melt adhesive film at the rear end, and the first wood chip freely falls along the second guide frame 55 to the conveying mechanism 6;

[0048] S5: the robot 71 delivers the second wood chip on a conveyor belt 72 to the vacuum adsorption surface 12, the first wood chip is delivered to the vacuum adsorption surface 12 by the conveyor mechanism 6 and pressed on the second wood chip, and then the robot 71 delivers another second wood chip on a conveyor belt 72 to the vacuum adsorption surface 12 and covers the first wood chip;

[0049] S6: The hot pressing mechanism 8 hot presses the second wood chip and the first wood chip downwards. After the hot pressing is completed, they are left to cool for a specific period of time. The pressed wood chips are cut by the cutting mechanism. Finally, the robot 71 removes the hot pressed composite sheet from the pasting table 11 and sends it to another conveyor belt 72, and then to the outside of the laminating machine for collection.

[0050] The present invention transmits the thermoplastic film to the first film feeding mechanism by setting a film feeding mechanism 2; automatically conveys the wood chips to the film coating position at equal intervals by setting a first film feeding mechanism 3; pre-presses the film-coated wood chips by setting a pressing mechanism 4 to enhance the bonding firmness between the wood chips and the hot melt adhesive film; realizes double-sided film coating of the wood chips by setting a turning mechanism 5; automatically conveys the double-sided film-coated wood chips to the pasting table 11 by setting a conveying mechanism 6; presses and shapes multiple wood chips by setting a hot pressing mechanism, etc., to make them more firm; realizes loading and unloading of wood chips by setting a manipulator 71, and realizes transportation and collection of wood chips by setting a conveying belt 72. The present invention is easy to operate and has a high degree of automation.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should fall within the protection scope of the present invention.

Claims

1. A wood chip laminating machine, characterized in that: The invention comprises a frame (1), wherein the frame (1) is provided with a film feeding mechanism (2), a first sheet feeding mechanism (3), a pressing mechanism (4), a turning mechanism (5), a conveying mechanism (6), a second sheet feeding mechanism (7) and a hot pressing mechanism (8) in sequence, wherein the film feeding mechanism (2) is used to transfer a thermoplastic film to the first sheet feeding mechanism (3), two first sheet feeding mechanisms (3) are provided and are arranged in parallel on the frame (1), one side of the first sheet feeding mechanism (3) is provided with an electromagnetic heating roller (9) for heating a first wood chip, and the first sheet feeding mechanism (3) is used to cover the heated first wood chip on the thermoplastic film. On the adhesive film, the pressing mechanism (4) is used to press the thermoplastic film and the first wood chip, the turning mechanism (5) is used to turn over the first wood chip, and a cutting knife (10) for cutting the thermoplastic film is provided at the end of the turning mechanism (5). A pasting table (11) is fixed below the hot pressing mechanism (8), the conveying mechanism (6) is used to convey the turned first wood chip to the pasting table (11), the second sheet conveying mechanism (7) respectively conveys two second wood chips to the top and bottom of the first wood chip, and the hot pressing mechanism (8) is used to paste the second wood chip and the first wood chip together.

2. A wood chip laminating machine according to claim 1, characterized in that: The film feeding mechanism (2) comprises a film feeding frame (21), on which a placing roller (22), a first guide roller (23), a second guide roller (24), a third guide roller (25), a fourth guide roller (26) and a fifth guide roller (27) are fixed. The placing roller (22) is used to place a rolled hot melt adhesive film. The first guide roller (23) is arranged at the rear and lower part of the placing roller (22). The second guide roller (24) is arranged at the rear and lower part of the first guide roller (23). A guide plate (28) is arranged between the first guide roller (23) and the second guide roller (24). The third guide roller (25) is arranged at the rear and lower part of the second guide roller (24). The fourth guide roller (26) is arranged in parallel at the rear of the third guide roller (25). The fifth guide roller (27) is arranged at the rear and lower part of the fourth guide roller (26).

3. A wood chip laminating machine according to claim 2, characterized in that: A bracket (29) and a lower limit plate (210) are fixed on the film feeding frame (21); a first cylinder (211) is fixed on the bracket (29); the first cylinder (211) is telescoped downward and an upper limit plate (212) is fixed at the bottom; the lower limit plate (210) is arranged directly below the upper limit plate (212).

4. A wood chip laminating machine according to claim 1, characterized in that: The first sheet feeding mechanism (3) comprises a conveying roller (31), a guide rail frame (32), a conveying guide rail (33) and a moving frame (34); the conveying direction of the conveying roller (31) is perpendicular to the conveying direction of the thermoplastic film; the electromagnetic heating roller (9) is arranged at the front end of the conveying roller (31); the guide rail frame (32) is fixed above the conveying roller (31); the conveying guide rail (33) is fixed on the guide rail frame (32); the moving frame (34) is driven by a driving mechanism (35) to move on the conveying guide rail (33); a second cylinder (36) is fixed on the moving frame (34); the second cylinder (36) is telescopic downward and has an adsorption component (37) fixed at the bottom; the adsorption component (37) is used to adsorb the first wood chip on the conveying roller (31).

5. A wood chip laminating machine according to claim 4, characterized in that: The adsorption assembly (37) comprises a first adsorption frame (371), a guide rod (372), a second adsorption frame (373) and a plurality of adsorption units, wherein the first adsorption frame (371) is fixed to the bottom of the second cylinder (36), the bottom of the guide rod (372) is fixed to the top of the first adsorption frame (371) and the top is movably arranged on the movable frame (34), the second adsorption frame (373) is fixed below the first adsorption frame (371) via a connecting rod (374), the adsorption unit comprises a plurality of adsorption rods (375) and a vacuum adsorption plate (376), the adsorption rods (37 5) is movably arranged on the first adsorption frame (371), the bottoms of the plurality of adsorption rods (375) are commonly fixed with the vacuum adsorption plate (376), the adsorption rods (375) are sleeved with a spring (377), the spring (377) is arranged between the first adsorption frame (371) and the vacuum adsorption plate (376), the second adsorption frame (373) is provided with a through hole (378), the vacuum adsorption plate (376) is arranged in the through hole (378), and when no force is applied, the bottom surface of the vacuum adsorption plate (376) is lower than the bottom surface of the second adsorption frame (373).

6. A wood chip laminating machine according to claim 1, characterized in that: The laminating mechanism (4) comprises a laminating frame (41), a lower laminating roller (42) and an upper laminating roller (43); the laminating frame (41) is fixed on the frame (1); the lower laminating roller (42) is arranged on the laminating frame (41); and the upper laminating roller (43) is arranged directly above the lower laminating roller (42) and can move up and down.

7. A wood chip laminating machine according to claim 1, characterized in that: The turning mechanism (5) comprises a turning frame (51), a first conveyor belt (52), a limiting roller (53), a first guide frame (54) and a second guide frame (55); the turning frame (51) and the first guide frame (54) are fixed on the frame (1); the first conveyor belt (52) and the limiting roller (53) are arranged on the turning frame (51); the limiting roller (53) is arranged above the end of the first conveyor belt (52); a gap is left between the first conveyor belt (52) and the limiting roller (53); the first guide frame (54) is arranged behind the turning frame (51); the first guide frame (54) and the second guide frame (55) are arranged at the rear of the turning frame (51); A gap is also left between the first and second conveyor belts (52); the first guide frame (54) is arranged to be tilted downward on one side close to the first conveyor belt (52); the lowest side of the first guide frame (54) is lower than the gap between the first conveyor belt (52) and the limiting roller (53); the second guide frame (55) is fixed on the turning frame (51) and arranged below the first guide frame (54); the second guide frame (55) is tilted downward and the tilting direction is opposite to the tilting direction of the first guide frame (54); the second guide frame (55) is arranged above the conveying mechanism (6); and the cutting knife (10) is arranged on the second guide frame (55).

8. A wood chip laminating machine according to claim 1, characterized in that: The conveying mechanism (6) comprises a second conveying belt (61), one end of the second conveying belt (61) is arranged below the turning mechanism (5), and the other end of the second conveying belt (61) is close to the pasting table (11).

9. A wood chip laminating machine according to claim 1, characterized in that: The pasting table (11) is provided with a vacuum adsorption surface (12), and the vacuum adsorption surface (12) is lower than the conveying surface of the conveying mechanism (6); the second sheet conveying mechanism (7) comprises a robot (71) and conveying belts (72) provided on both sides of the robot (71), and the robot (71) is used to convey the second wood chip on one conveying belt (72) to the pasting table (11) and to convey the composite sheet on the pasting table (11) to another conveying belt (72).

10. A wood chip laminating method, applied to the wood chip laminating machine according to any one of claims 1 to 8, characterized in that: The following steps are involved: The film feeding mechanism (2) transfers the thermoplastic film to the position of the first film feeding mechanism (3). The two first film feeding mechanisms (3) work simultaneously to feed the heated first wood chip to the thermoplastic film and cover the first wood chip. The thermoplastic film is heated and adheres to the bottom surface of the first wood chip. The pressing mechanism (4) further presses the thermoplastic film and the first wood chip. The turning mechanism (5) turns the first wood chip backwards. The cutting knife (10) cuts the thermoplastic film. At this time, the bottom surface of the turned first wood chip covers the thermoplastic film. The second sheet feeding mechanism (7) places a second wood chip on the gluing table (11); the first wood chip is transported to the gluing table (11) by the transport mechanism (6) and pressed onto the second wood chip; the second sheet feeding mechanism (7) then places another second wood chip on the first wood chip; the hot pressing mechanism (8) performs hot pressing on the second wood chip and the first wood chip downwards; after the hot pressing is completed and the chips are left to stand for a specific period of time, the second sheet feeding mechanism (7) removes the hot pressed composite chip from the gluing table (11).

Images