Automatic film laminating machine for special-shaped paint-free door and film laminating method of automatic film laminating machine

Abstract

The invention belongs to the field of paint-free door processing, and particularly relates to a special-shaped paint-free door automatic film laminating machine and a film laminating method thereof.The special-shaped paint-free door automatic film laminating machine comprises a pre-film laminating rack (12), a shaping film laminating rack (14), a feeding mechanism, a gluing mechanism (3), a pressing and sticking mechanism (4), a film skin cutting mechanism (5), a heating bin (8) and a discharging mechanism; the discharging end of the feeding mechanism corresponds to the feeding end of the gluing mechanism (3); the discharging end of the gluing mechanism (3) corresponds to the feeding end of the pressing and sticking mechanism (4); the discharging end of the pressing and sticking mechanism (4) corresponds to the feeding end of the film cutting mechanism (5); and a feeding port of the heating bin (8) corresponds to a discharging end of the film cutting mechanism (5). The laminating method comprises the following steps: coating a to-be-processed plate with PUR glue, pre-sticking, sucking and laminating in vacuum, heating and laminating to finish plate laminating. According to the invention, the processing efficiency is high, the phenomena of edge opening, bulging and cracking at the gluing position can be eliminated, and the continuous operation of feeding, pre-laminating, sizing and laminating and discharging is realized.

Description

Technical Field

[0001] The invention belongs to the field of paint-free door processing, and in particular relates to an automatic laminating machine for special-shaped paint-free doors and a laminating method thereof. Background Art

[0002] At present, people's living standards are getting higher and higher, and their awareness of environmental protection is getting stronger and stronger. Naturally, the quality requirements for wooden doors are getting higher and higher. The overall sense and thick shape of the special-shaped paint-free coated doors with strong decorative effects have become the first choice for consumers for indoor doors. The coating machine is suitable for the production of PVC, decorative paint paper, and solid wood veneer on the surface of various lines or boards such as wood, aluminum-plastic profiles, and foam materials. When the PVC plastic board is coated with adhesive tape, the adhesive tape is usually manually applied to the upper surface of the PVC plastic board at the feeding end of the coating machine, and then the PVC plastic board and the adhesive tape are fed into the coating machine together for press-fitting. However, when applying adhesive tape to the PVC plastic board, it usually requires the cooperation of multiple people. The labor intensity of the operators during the whole process is very high, and fatigue is easily generated, thereby reducing work efficiency and even causing safety accidents due to fatigue.

[0003] The Chinese utility model patent with publication number CN211541613U discloses "a new type of wood veneer", which includes a veneer body, a support block is arranged at the lower end of the veneer body, a connecting rod is arranged at one end of the veneer body, a roller skate is arranged at the upper end of the connecting rod, a placement board is arranged at the upper end of the roller skate, a movable mechanism is arranged at the other end of the veneer body, a support rod is arranged at one end of the connecting rod, a movable rod is arranged at the upper end of the support rod, and a fixing mechanism is arranged at the lower end of the support rod. The veneer can facilitate the installation of the device, making the installation of the device more stable and convenient for the use of the control panel. When installing this type of laminating machine, the threaded rod is unscrewed a certain distance so that the mounting plate can contact the ground. When the mounting plate is close to the ground, the fixing screws are tightened so that the position of the mounting plate can be fixed, which is convenient for placing the device on an uneven ground and for the stable placement of the device. The external screws can pass through the mounting holes to fix the mounting plate at a specified position, so that the position of the mounting plate can be fixed again. The fixing plate can be connected to the rotating shaft, and the connecting plate can be connected to the rotating shaft. The connecting plate and the control panel can be rotated by the rotating shaft, so that the position of the control panel can be flexibly changed, which is convenient for the use of the control panel and makes the use of the control panel more convenient. However, the above patent is not ideal for the laminating effect on the surface and side of the heterogeneous workpiece. After the film is pasted, the edges are often opened, bulged, and cracked. Moreover, the plate to be processed first needs to be automatically or manually sprayed with vacuum plastic suction, wait for the glue to dry, and then laminar lamination can be performed. Summary of the invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provide an automatic laminating machine and a laminating method for special-shaped paint-free doors which have high processing efficiency and can eliminate the edge opening, bulging and cracking at the adhesive film after lamination, and can realize continuous operations of loading, pre-laminating, shaping laminating and unloading.

[0005] To solve the above technical problems, the present invention is achieved as follows: An automatic laminating machine for special-shaped paint-free doors, comprising a pre-laminating frame, a shaped laminating frame, a feeding mechanism, a gluing mechanism, a pressing and bonding mechanism, a film skin cutting mechanism, a heating bin and a unloading mechanism; the gluing mechanism, the pressing and bonding mechanism and the film skin cutting mechanism are fixedly arranged on the pre-laminating frame in sequence; a guide roller assembly is fixedly arranged on the pre-laminating frame in the longitudinal direction; the heating bin is fixedly arranged on the shaped laminating frame; a plate transporting mechanism is longitudinally arranged on the shaped laminating frame; the discharging end of the feeding mechanism corresponds to the feeding end of the gluing mechanism; the discharging end of the gluing mechanism corresponds to the feeding end of the pressing and bonding mechanism; PUR glue is applied to the back of the film skin by the gluing mechanism, and then the film skin is pre-attached to the surface of the plate to be processed by the pressing and bonding mechanism; the discharging end of the pressing and bonding mechanism corresponds to the feeding end of the film skin cutting mechanism; the feeding port of the heating bin corresponds to the discharging end of the film skin cutting mechanism, and its discharging port corresponds to the feeding end of the unloading mechanism.

[0006] Furthermore, in the present invention, a workpiece suction mechanism is fixedly provided between the discharge end of the membrane cutting mechanism and the feed end of the heating bin.

[0007] Furthermore, the feeding mechanism of the present invention comprises a gantry feeding rack and a roller feeding rack; the roller feeding rack is placed below the gantry feeding rack, and its discharge end is fixedly connected to the feed end of the gluing mechanism.

[0008] Furthermore, the present invention has a loading suction cup fixedly arranged horizontally on the upper part of the gantry loading rack; the loading suction cup is fixedly connected to the top loading movable slide block of the gantry loading rack via a loading telescopic mechanism; the loading movable slide block can slide horizontally along the top loading slideway of the gantry loading rack.

[0009] Furthermore, the unloading mechanism of the present invention comprises a gantry unloading rack and a roller unloading rack; the roller unloading rack is placed below the gantry unloading rack, and its feeding end is fixedly connected to the discharging end of the heating bin.

[0010] Furthermore, the present invention has a finished workpiece pushing rack fixedly provided between the discharge end of the heating bin and the roller unloading rack.

[0011] Furthermore, the present invention has a material unloading suction cup fixedly arranged horizontally on the upper part of the gantry unloading rack; the material unloading suction cup is fixedly connected to the top material unloading movable slider of the gantry unloading rack via a material unloading telescopic mechanism; the material unloading movable slider can slide horizontally along the top material unloading slideway of the gantry unloading rack.

[0012] Furthermore, a heating pipe is provided at the top of the inner cavity of the heating chamber of the present invention; and a suction hole is provided at the top of the working cavity of the workpiece suction mechanism.

[0013] The laminating method of the above-mentioned automatic laminating machine for special-shaped paint-free doors can be implemented according to the following steps: (1) the plate to be processed is sent to the roller loading rack through the loading suction cup in the loading mechanism, and then the plate is heated; (2) PUR glue is applied to the back of the decorative film, and then the decorative film is pre-bonded to the surface of the plate; (3) the plate to be processed is sent to the vacuum suction area by the plate transport mechanism for vacuum bonding; (4) the plate to be processed enters the heating chamber for heating and bonding; (5) when the heating chamber returns to its original position, the processed plate is pushed to the unloading mechanism.

[0014] Furthermore, in step (2) of the present invention, the PUR glue is applied to the back side of the decorative film by scraping or rolling.

[0015] The present invention has the characteristics of high processing efficiency, and can eliminate the phenomenon of edge opening, bulging and cracking at the adhesive tape after the adhesive film is attached, and realize the continuous operation of loading, pre-filming, final filming and unloading. PUR is a polymer with repeating structural units of urethane segments made by the reaction of isocyanate and polyol. PUR products are divided into two categories: foamed products and non-foamed products. Foamed products include soft, hard and semi-hard PUR foam plastics; non-foamed products include coatings, adhesives, synthetic leather, elastomers and elastic fibers. The present invention can realize the continuous operation of glue coating, pre-filming and film cutting by arranging a glue coating mechanism, a pressure bonding mechanism and a film cutting mechanism. Due to the use of a combination of vacuum suction coating and heated film laminating technology, it can be applied to the coating of the surface and side of heterogeneous workpieces where the use effect of PUR glue is not ideal, and solves the problem of edge opening, bulging and cracking at the adhesive tape from a technical level. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Top view of the .

[0017] In the figure: 1. Gantry loading rack; 101. Loading suction cup; 102. Loading telescopic mechanism; 103. Loading moving slider; 104. Loading slideway; 2. Roller loading rack; 3. Gluing mechanism; 4. Pressing and bonding mechanism; 5. Film cutting mechanism; 6. Plate transport mechanism; 7. Workpiece suction and covering mechanism; 8. Heating bin; 9. Finished workpiece pushing rack; 10. Gantry unloading rack; 1001. Unloading suction cup; 1002. Unloading telescopic mechanism; 1003. Unloading moving slider; 1004. Unloading slideway; 11. Roller unloading rack; 12. Pre-laminating rack; 14. Forming laminating rack; 15. Suction and covering hole. DETAILED DESCRIPTION

[0018] In order to make those skilled in the art better understand the technical solution of the present invention, the present invention is further described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. These embodiments should be understood to be only used to illustrate the present invention and not to limit the protection scope of the present invention. After reading the contents recorded in the present invention, all other embodiments obtained after various changes or modifications made to the present invention based on the technical solution and embodiments of the present invention also fall within the scope of protection of the claims of the present invention.

[0019] like Figure 1 and Figure 2 As shown, an automatic laminating machine for special-shaped paint-free doors includes a pre-laminating frame 12, a shaping laminating frame 14, a feeding mechanism, a gluing mechanism 3, a pressing and bonding mechanism 4, a film skin cutting mechanism 5, a heating chamber 8 and a feeding mechanism; the gluing mechanism 3, the pressing and bonding mechanism 4 and the film skin cutting mechanism 5 are sequentially fixed on the pre-laminating frame 12; a guide roller assembly 13 is longitudinally fixed on the pre-laminating frame 12; the heating chamber 8 is fixed on the shaping laminating frame 14; a plate transport mechanism 13 is longitudinally fixed on the shaping laminating frame 14 The feeding mechanism 6; the discharging end of the feeding mechanism corresponds to the feeding end of the gluing mechanism 3; the discharging end of the gluing mechanism 3 corresponds to the feeding end of the pressing mechanism 4; the PUR glue is applied to the back of the film skin by the gluing mechanism 3, and then the film skin is pre-bonded to the surface of the plate to be processed by the pressing mechanism 4; the discharging end of the pressing mechanism 4 corresponds to the feeding end of the film skin cutting mechanism 5; the feeding port of the heating bin 8 corresponds to the discharging end of the film skin cutting mechanism 5, and its discharging port corresponds to the feeding end of the unloading mechanism.

[0020] The present invention is provided with a workpiece suction mechanism 7 fixedly disposed between the discharge end of the membrane cutting mechanism 5 and the feed end of the heating bin 8. The feeding mechanism of the present invention comprises a gantry feeding frame 1 and a roller feeding frame 2; the roller feeding frame 2 is placed below the gantry feeding frame 1, and its discharge end is fixedly connected to the feed end of the gluing mechanism 3. The present invention is provided with a feeding suction cup 101 fixedly disposed horizontally on the upper part of the gantry feeding frame 1; the feeding suction cup 101 is fixedly connected to the top feeding moving slide block 103 of the gantry feeding frame 1 through a feeding telescopic mechanism 102; the feeding moving slide block 103 can slide horizontally along the top feeding slideway 104 of the gantry feeding frame 1. The unloading mechanism comprises a gantry unloading frame 10 and a roller unloading frame 11; the roller unloading frame 11 is placed below the gantry unloading frame 10, and its feed end is fixedly connected to the discharge end of the heating bin 8. The present invention has a finished workpiece pusher 9 fixedly disposed between the discharge end of the heating bin 8 and the roller unloading rack 11. The present invention has a unloading suction cup 1001 fixedly disposed horizontally on the upper part of the gantry unloading rack 10; the unloading suction cup 1001 is fixedly connected to the top unloading moving slider 1003 of the gantry unloading rack 10 via an unloading telescopic mechanism 1002; the unloading moving slider 1003 can slide horizontally along the top unloading slideway 1004 of the gantry unloading rack 10. A heating pipe is disposed at the top of the inner cavity of the heating bin 8; and a suction hole 15 is disposed at the top of the working cavity of the workpiece suction covering mechanism 7.

[0021] The laminating method of the automatic laminating machine for special-shaped paint-free doors is implemented according to the following steps: (1) the plate to be processed is sent to the roller loading rack through the loading suction cup in the loading mechanism, and then the plate is heated; (2) PUR glue is applied to the back of the decorative film, and then the decorative film is pre-bonded to the surface of the plate; when applying the glue, the PUR glue is applied to the back of the decorative film by scraping or rolling; (3) the plate to be processed is sent to the vacuum suction laminating area by the plate transport mechanism for vacuum bonding; (4) the plate to be processed enters the heating chamber for heating and bonding; (5) when the heating chamber returns to its original position, the processed plate is pushed to the unloading mechanism.

[0022] The PUR glue of the present invention is applied to the back of the decorative film by scraping or rolling, and then pre-laminated, and then pushed or fed into the vacuum bonding area for bonding. The automatic heating chamber automatically moves from the end of the workpiece to be processed to the rear end to complete the heating bonding molding. Finally, the finished plate at the rear end of the heating chamber is completed by the action of the automatic plate pushing cylinder, and the workpiece is pushed to the unloading area when the heating chamber returns. Specifically, first, the plate to be processed is sent to the roller loading rack by the loading suction cup in the loading mechanism. In this process, the loading suction cup 101 can be driven by the top loading moving slider 103 of the horizontally moving gantry loading rack 1 to select a suitable loading position. When the feeding suction cup 101 is at the upper end of the plate to be processed, the feeding telescopic mechanism 102 is turned on to move it down close to the plate to be processed, and then the feeding suction cup 101 is turned on to adsorb the plate to be processed to the position of the roller feeding rack 2, and then the plate is heated; secondly, the PUR glue is applied to the back of the decorative film by the gluing mechanism 3, and then the decorative film is pre-attached to the surface of the plate to be processed by the pressing mechanism 4; when applying the glue, the PUR glue can be applied to the back of the decorative film by scraping or rolling, and then the film cutting mechanism 5 completes the film cutting. The above-mentioned gluing mechanism 3, pressing mechanism 4 and film cutting mechanism 5 can all use general products on the market. Thirdly, the plate to be processed is sent to the vacuum suction area by the plate transport mechanism, and the vacuum bonding is completed by the workpiece suction mechanism 7, and the workpiece suction mechanism 7 is connected to the vacuum pump. The workpiece suction and covering mechanism 7 adopts a common suction and covering mechanism in the market; secondly, the plate to be processed enters the heating bin 8 through the plate transport mechanism for heating and laminating, and when the heating bin 8 returns to its original position, the processed plate is finally pushed to the unloading mechanism. When unloading, the unloading suction cup 1001 can be driven by the top unloading moving slider 1003 of the horizontally moving gantry unloading rack 10 to select a suitable unloading position. When the unloading suction cup 1001 is at the upper end of the finished plate on the workpiece pushing rack 9, the unloading telescopic mechanism 1002 is turned on to move it down to a position close to the finished plate, and then the unloading suction cup 1001 is turned on to adsorb the finished plate to the finished plate placement position where it needs to be placed.

[0023] The above-described embodiments are only preferred embodiments of the present invention and are not intended to limit the present invention. It should be noted that for those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic laminating machine for special-shaped paint-free doors, characterized in that: The invention comprises a pre-laminating frame (12), a shaping laminating frame (14), a feeding mechanism, a gluing mechanism (3), a pressing and bonding mechanism (4), a film skin cutting mechanism (5), a heating chamber (8) and a feeding mechanism; the gluing mechanism (3), the pressing and bonding mechanism (4) and the film skin cutting mechanism (5) are fixedly arranged on the pre-laminating frame (12) in sequence; a guide roller assembly (13) is fixedly arranged on the pre-laminating frame (12) in the longitudinal direction; the heating chamber (8) is fixedly arranged on the shaping laminating frame (14); a plate transport mechanism is fixedly arranged on the shaping laminating frame (14) in the longitudinal direction (6); the discharge end of the feeding mechanism corresponds to the feed end of the gluing mechanism (3); the discharge end of the gluing mechanism (3) corresponds to the feed end of the pressing mechanism (4); the PUR glue is applied to the back of the film skin by the gluing mechanism (3), and then the film skin is pre-bonded to the surface of the plate to be processed by the pressing mechanism (4); the discharge end of the pressing mechanism (4) corresponds to the feed end of the film skin cutting mechanism (5); the feed port of the heating chamber (8) corresponds to the discharge end of the film skin cutting mechanism (5), and its discharge port corresponds to the feed end of the unloading mechanism.

2. According to claim 1, the automatic laminating machine for special-shaped paint-free doors is characterized by: A workpiece suction mechanism (7) is fixedly provided between the discharge end of the membrane cutting mechanism (5) and the feed end of the heating bin (8).

3. According to claim 2, the automatic laminating machine for special-shaped paint-free doors is characterized by: The feeding mechanism comprises a gantry feeding frame (1) and a roller feeding frame (2); the roller feeding frame (2) is placed below the gantry feeding frame (1), and its discharge end is fixedly connected to the feed end of the glue coating mechanism (3).

4. According to claim 3, the automatic laminating machine for special-shaped paint-free doors is characterized in that: A loading suction cup (101) is horizontally fixedly provided on the upper part of the gantry loading rack (1); the loading suction cup (101) is fixedly connected to a loading movable slide block (103) at the top of the gantry loading rack (1) via a loading telescopic mechanism (102); the loading movable slide block (103) can slide horizontally along a loading slideway (104) at the top of the gantry loading rack (1).

5. According to claim 4, the automatic laminating machine for special-shaped paint-free doors is characterized in that: The material discharging mechanism comprises a gantry material discharging frame (10) and a roller material discharging frame (11); the roller material discharging frame (11) is placed below the gantry material discharging frame (10), and its feeding end is fixedly connected to the discharging end of the heating bin (8).

6. The automatic laminating machine for special-shaped paint-free doors according to claim 5, characterized in that: A finished workpiece pushing rack (9) is fixedly provided between the discharge end of the heating bin (8) and the roller unloading rack (11).

7. The automatic laminating machine for special-shaped paint-free doors according to claim 6, characterized in that: A material unloading suction cup (1001) is horizontally fixedly provided on the upper part of the gantry unloading rack (10); the material unloading suction cup (1001) is fixedly connected to a material unloading movable slide block (1003) at the top of the gantry unloading rack (10) via a material unloading telescopic mechanism (1002); the material unloading movable slide block (1003) can slide horizontally along a material unloading slideway (1004) at the top of the gantry unloading rack (10).

8. The automatic laminating machine for special-shaped paint-free doors according to claim 7, characterized in that: A heating pipe is provided at the top of the inner cavity of the heating chamber (8); and a suction hole (15) is provided at the top of the working cavity of the workpiece suction mechanism (7).

9. The laminating method of the automatic laminating machine for special-shaped paint-free doors according to any one of claims 2 to 8, characterized in that: The process is implemented as follows: (1) The sheet to be processed is sent to the roller loading rack through the loading suction cup in the loading mechanism, and then the sheet is heated; (2) PUR glue is applied to the back of the decorative film, and then the decorative film is pre-bonded to the surface of the sheet; (3) The sheet to be processed is sent to the vacuum suction area by the sheet transport mechanism for vacuum bonding; (4) The sheet to be processed enters the heating chamber for heating and bonding; (5) When the heating chamber returns to its original position, the processed sheet is pushed to the unloading mechanism.

10. The laminating method of the automatic laminating machine for special-shaped paint-free doors according to claim 9, characterized in that: In step (2), PUR glue is applied to the back side of the decorative film by scraping or rolling.

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