Online coating device for elevator hall door panels

Abstract

This application relates to an online laminating device for elevator hall door panels, comprising a frame on which a powered roller for conveying elevator hall door panels and a film storage mechanism for providing protective film are mounted. The online laminating device further includes, mounted on the frame: an interception mechanism with liftable first and second blocking members for intercepting or releasing front and rear elevator hall door panels respectively to maintain the distance between them; a film clamping mechanism with independently liftable and mutually cooperating upper and lower clamping plates for clamping the protective film to accommodate the elevator hall door panel requiring laminating, or lifting the protective film to avoid elevator hall door panels that do not require laminating; and a film cutting mechanism with a liftable electrothermal cutting wire for cutting the protective film at a predetermined position. This configuration allows the online laminating device for elevator hall door panels 12 to perform targeted laminating for elevator hall door panels of different materials, and ensures that the pre-reserved film length at the front and rear ends of the laminating elevator hall door panel meets the standard.

Description

Technical Field

[0001] The present application relates to the field of elevator manufacturing, and in particular to an online coating device for elevator hall door panels. Background Art

[0002] The most commonly used material for elevator hall door panels is Q235A sheet metal. After the hall door panels are formed with this sheet metal and powder-coated, the outer surface of the hall door panels needs to be covered with a protective film, while the hall door panels made of other stainless steel materials do not need to be covered with a protective film, such as SUS443 and SUS304. At the same time, for the hall door panels made of Q235A, due to the subsequent rivetless connection process, the mold length of the head and tail of the hall door panels after filming should not be too long, so as to avoid riveting or rivet penetration in the rivetless connection process. In the production of assembly line order mode, each production order is different, and one order contains different quantities of hall door panels made of Q235A, hall door panels made of SUS304, and hall door panels made of SUS443. In the assembly line order production mode, the hall door panels made of Q235A need to be coated, while the door panels made of stainless steel do not need to be coated, so a set of laminating devices that can automatically apply fixed-length films is required.

[0003] At present, elevator factories are generally operated by at least two operators, and manual operation has the following defects:

[0004] (1) Continuous online testing by manual labor is labor-intensive. At the same time, during long-term testing, testers are prone to fatigue, and production efficiency is greatly affected by manual labor.

[0005] (2) It is difficult to accurately control the length of the film at both ends of the hall door panel by manual lamination, which can easily have an adverse effect on the subsequent rivetless connection process, affect product quality, and damage the rivetless connection device.

[0006] (3) Manual testing requires a large amount of manpower, resulting in high testing costs and greater production pressure on enterprises.

[0007] The general automatic laminating devices on the market are generally only for products with a certain rigidity such as glass, and have the following defects when applied to hall door panels:

[0008] (1) It is difficult to accurately control the length of the film at both ends of the hall door panel by manual lamination, which can easily have an adverse effect on the subsequent rivetless connection process, affect product quality, and damage the rivetless connection device.

[0009] (2) Since the hall door panel is formed by bending four sides, the rigidity of the middle part of the hall door panel is weak, and large bubbles are easily generated during lamination, which affects the aesthetics of the lamination and easily causes the film to fall off. Summary of the invention

[0010] Based on this, it is necessary to provide an online coating device for elevator hall door panels that solves at least one of the above problems.

[0011] An online film coating device for elevator hall door panels, comprising a frame, on which a power roller for conveying the elevator hall door panels and a film storage mechanism for providing a protective film are mounted, and the online film coating device further comprises:

[0012] The interception mechanism has a first and a second stopper that can be raised and lowered, and is used to intercept or release the front and rear elevator hall door panels respectively to maintain the distance between them;

[0013] The film clamping mechanism has upper and lower clamping plates that can be raised and lowered separately and cooperate with each other, and is used to clamp the protective film to cater to the elevator hall door panels that need to be coated, or to lift the protective film to avoid the elevator hall door panels that do not need to be coated;

[0014] The film cutting mechanism is provided with an electric heating cutting wire which can be raised and lowered to cut off the protective film at a predetermined position.

[0015] Optionally, the online film coating device further comprises a pressing roller, which is escalably mounted on the frame and is located above the elevator hall door panel, so as to compact the film on the top surface of the elevator hall door panel;

[0016] At least a portion of the power roller is a top plate roller installed on the frame and can be raised and lowered, and is used to cooperate with the clamping roller to clamp the elevator hall door panel up and down.

[0017] Optionally, the first and second blocks in the interception mechanism are respectively configured with driving mechanisms and independently control the lifting and lowering.

[0018] Optionally, the interception mechanism includes:

[0019] A first linear bearing fixed to the frame;

[0020] A guide shaft slidably disposed in the first linear bearing;

[0021] A first mounting plate fixed to the top end of the guide shaft;

[0022] A hook block fixed to the first mounting plate and serving as a first blocking member;

[0023] A hook block cylinder mounted on the frame and linked to the first mounting plate;

[0024] A second linear bearing fixed to the first mounting plate;

[0025] A blocking rod slidably disposed in the first linear bearing and serving as a second blocking member;

[0026] A second mounting plate fixed to the bottom end of the barrier rod;

[0027] A barrier rod cylinder is mounted on the first mounting plate and linked with the second mounting plate.

[0028] Optionally, the bottom surface of the elevator hall door panel has a blocking position. In the transmission direction of the elevator hall door panel, the blocking rod is located upstream and abuts against the outer side wall of the rear elevator hall door panel, and the hook block is located downstream and extends into the blocking position of the front elevator hall door panel.

[0029] Optionally, the film clamping mechanism includes:

[0030] A vertical guide rail fixed to the frame;

[0031] An upper slider slidably mounted on the vertical guide rail;

[0032] An upper clamping plate fixed to the upper slider;

[0033] An upper clamping plate cylinder is installed on the frame and linked with the upper slider.

[0034] A lower slider slidably mounted on the vertical guide rail;

[0035] A lower clamping plate fixed to the upper slider;

[0036] A lower clamping plate cylinder is installed on the frame and linked with the upper slider.

[0037] Optionally, there are two vertical guide rails, which are arranged side by side on both sides of the elevator hall door panel transmission path, and there are two upper sliders, which are respectively installed on the vertical guide rails on the corresponding sides, and the upper clamping plate is bridged between the two upper sliders; there are two lower sliders, which are respectively installed on the vertical guide rails on the corresponding sides, and the lower clamping plate is bridged between the two lower sliders and is directly below the upper clamping plate.

[0038] Optionally, the online laminating device has a laminating station, and the elevator hall door panel that has completed lamination is intercepted by the intercepting mechanism and retained at the laminating station. The film cutting mechanism is composed of two sets spaced apart, which are respectively arranged upstream and downstream of the laminating station to isolate the lamination on the corresponding sides of the elevator hall door panel.

[0039] Optionally, the film cutting mechanism includes:

[0040] A lifting rod slidably mounted relative to the frame;

[0041] Two heating wire fixing plates hinged to both ends of the lifting rod;

[0042] An electric heating cutting wire connected between the two heating wire fixing plates;

[0043] A spring connected between the lifting rod and at least one heating wire fixing plate for tensioning the electric heating cutting wire.

[0044] Optionally, the online laminating device further comprises a guide wheel mechanism, wherein two sets of the guide wheel mechanism are respectively arranged on both sides of the elevator hall door panel transmission path for centering the elevator hall door panel in the width direction, and each set of the guide wheel mechanism comprises:

[0045] A vertically arranged vertical shaft, wherein the vertical shaft is fixedly mounted relative to the frame, or slidably mounted relative to the frame along the width direction of the elevator hall door panel;

[0046] A transverse axis fixing member slidably mounted on the vertical axis and having an adjustable height;

[0047] A plurality of transverse shafts slidably arranged in the transverse shaft fixing member along the width direction of the elevator hall door panel;

[0048] The guide wheels installed on each transverse axis at one end of the elevator hall door panel transmission path gradually change from inclined to vertical along the elevator hall door panel transmission direction to guide the elevator hall door panel to be centered in the width direction.

[0049] The above-mentioned online film coating device for elevator hall door panels is provided with a first and a second blocking member that can be raised and lowered on the film coating device, respectively used to intercept or release the front and rear elevator hall door panels to maintain the distance between the two, so that the film length at the front and rear ends of the elevator hall door panels can be controlled when cutting the film. The film coating device is provided with a film clamping mechanism with upper and lower clamping plates that can be raised and lowered and cooperate with each other to clamp the protective film, so as to cater to the elevator hall door panels that need to be coated, or to lift the protective film to avoid the elevator hall door panels that do not need to be coated, so that the online film coating device can coat elevator hall door panels of different materials. The film cutting mechanism with an electric heating cutting wire that can be raised and lowered is provided on the film coating device to cut off the protective film at a predetermined position. Such a setting enables the online film coating device for elevator hall door panels to carry out targeted coating for elevator hall door panels of different materials, and ensures that the film length reserved at the front and rear ends of the elevator hall door panels after coating meets the standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the left side structure of an online laminating device in one embodiment;

[0051] Figure 2 It is a schematic diagram of the top view of the structure of an online laminating device in one of the embodiments;

[0052] Figure 3 It is a front view structural schematic diagram of an online laminating device in one of the embodiments;

[0053] Figure 4 It is a schematic structural diagram of a power roller in an online laminating device in one of the embodiments;

[0054] Figure 5 It is a structural schematic diagram of a film storage mechanism in an online film coating device in one of the embodiments;

[0055] Figure 6 It is a front view structural schematic diagram of an interception mechanism in an online laminating device in one of the embodiments;

[0056] Figure 7 It is a side view structural schematic diagram of an interception mechanism in an online laminating device in one of the embodiments;

[0057] Figure 8 It is a front view structural schematic diagram of a film clamping mechanism in an online film laminating device in one of the embodiments;

[0058] Fig. 9 It is a side view structural schematic diagram of a film clamping mechanism in an online film laminating device in one of the embodiments;

[0059] Fig.10 It is a front view structural schematic diagram of a film cutting mechanism in an online film laminating device in one of the embodiments;

[0060] Fig.11 It is a schematic diagram of the top view of the film cutting mechanism in the online film laminating device in one of the embodiments;

[0061] Fig.12 A schematic diagram of the structure of a pressing roller in an online laminating device in one of the embodiments;

[0062] Fig.13 It is a front view structural schematic diagram of a top plate roller in an online laminating device in one of the embodiments;

[0063] Fig.14 A schematic diagram of a top view of a top plate roller in an online laminating device in one of the embodiments;

[0064] Fig.15 It is a front view structural schematic diagram of a guide wheel mechanism in an online laminating device in one of the embodiments;

[0065] Fig.16 It is a schematic diagram of the top view of the guide wheel mechanism in the online laminating device in one of the embodiments;

[0066] Description of the accompanying drawings:

[0067] 1. Frame; 1a. Mounting plate;

[0068] 2. Power roller; 201. Axis; 202. Roller; 203. Bearing; 204. Sprocket;

[0069] 3. Film storage mechanism; 301. Air expansion shaft; 302. Protective film; 303. Fixing plate; 304. Bearing; 305. Gear; 306. Damping gear; 307. Screw;

[0070] 4. Intercepting mechanism; 401. First linear bearing; 402. Guide shaft; 403. First mounting plate; 404. Hook block; 405. Hook block cylinder; 406. Second linear bearing; 407. Stop rod; 408. Second mounting plate; 409. Stop rod cylinder;

[0071] 5. Film clamping mechanism; 510. Vertical guide rail;

[0072] 520, upper slider; 521, upper clamping plate; 522, upper clamping plate cylinder; 523, first connecting plate; 524, upper clamping plate connecting piece; 525, cylinder connecting block;

[0073] 530, lower slider; 531, lower clamping plate; 532, lower clamping plate cylinder; 533, second connecting plate; 534, lower clamping plate connecting piece; 535, cylinder connecting block;

[0074] 6. Film cutting mechanism; 601. Lifting rod; 602. Heating wire fixing plate; 603. Electric heating cutting wire; 604. Spring; 605. Film cutting guide rail; 606. Film cutting slider; 607. Connecting block; 608. Connecting block; 609. Film cutting cylinder; 610. Cylinder connecting block; 611. Winding block; 612. Pressing nut; 613. Spring fixing block;

[0075] 7. The second film cutting mechanism;

[0076] 8. Pressing roller; 801. Guide rail; 802. Sliding block; 803. Roller; 804. Roller axis; 805. Pressing roller cylinder; 806. Cylinder connecting plate; 807. Fixing block;

[0077] 9. Top plate roller; 910. Mounting plate; 911. Roller device; 912. Roller device; 901. Guide rod; 902. Connecting plate; 903. Roller; 904. Cylinder; 920. Dead stopper; 921. Guide rod; 922. Connecting plate; 923. Cylinder;

[0078] 10. Guide wheel mechanism; 1010. Vertical axis; 1011. Horizontal axis fixing piece; 1012. Horizontal axis; 1013. Guide wheel; 1014. Guide wheel fixing block; 1015. Vertical axis fixing block;

[0079] 1020, vertical shaft; 1021, guide push rod; 1022, linear bearing; 1023, fixed plate; 1024, vertical shaft fixing piece; 1025, push plate; 1026, guide wheel; 1027, scale rod; 1028, clamping plate

[0080] 11. Sensor;

[0081] 12. Elevator hall door panel. DETAILED DESCRIPTION

[0082] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0083] In order to better describe and illustrate the embodiments of the present application, reference may be made to one or more drawings, but the additional details or examples used to describe the drawings should not be considered as limiting the scope of the invention of the present application, any of the currently described embodiments or preferred methods.

[0084] like Figure 1-3 As shown, the present application provides an online film coating device for elevator hall door panels, including a frame 1, on which a power roller 2 for conveying elevator hall door panels 12 and a film storage mechanism 3 for providing protective film are installed. The online film coating device also includes: an interception mechanism 4 installed on the frame, with a first and a second blocking member that can be raised and lowered, respectively used to intercept or release the front and rear elevator hall door panels 12 to maintain the distance between them. A film clamping mechanism 5, with upper and lower clamping plates that can be raised and lowered and cooperate with each other, used to clamp the protective film to cater to the elevator hall door panels 12 that need to be coated, or to lift the protective film to avoid the elevator hall door panels 12 that do not need to be coated. A film cutting mechanism 6, with an electric heating cutting wire that can be raised and lowered, used to cut the protective film at a predetermined position.

[0085] like Figure 3 As shown, the frame 1 includes two mounting plates 1a respectively standing upright, and various mechanisms are installed between the widths of the two mounting plates 1a on opposite sides. A plurality of power rollers 2 are arranged in the 805 transmission direction of the elevator hall door panel 12, and are arranged below the elevator door panel to support and transport the elevator hall door panel 12 from one end of the frame 1 to the other end, according to the following Figure 1 The center-line coating device is transported from the left side to the right side, and the coating is completed during the process of transporting the elevator hall door panel 12.

[0086] like Figure 4 As shown, the power roller 2 includes a roller 202 disposed between two mounting plates 1a through an axis 201, bearings 203 are respectively installed on both sides of the axis, and a separate sprocket 205 is also installed on one side of the axis 201, and the sprocket 205 is driven by an external chain to drive the roller 202 to rotate. The surface of the roller 202 is preferably made of polyurethane material, so that the surface of the elevator hall door panel 12 is not damaged when the power roller 2 transports the elevator hall lobby.

[0087] like Figure 5 As shown, the film storage mechanism 3 is arranged above the frame 1 and consists of an air-expanding shaft 301 and a protective film 302 wound on the air-expanding shaft 301. When the air-expanding shaft 301 is inflated, the protective film 302 can be tightened. Fixed plates 303 are respectively arranged at corresponding positions of the two mounting plates 1a, and both ends of the air-expanding shaft 301 are supported between the two fixed plates 303 through bearings 304. A gear 305 is also installed on one side of the air-expanding shaft 301, and the gear 305 is meshed with a damping gear 306 arranged on the fixed plate 303 on the corresponding side. A through hole with a thread connected to the bearing 304 is also arranged on the fixed plate 303, which is used to cooperate with the screw 307 to clamp the bearing 304.

[0088] like Figure 2 As shown, the interception mechanism 4 is arranged at the upstream position of the frame 1 for transporting the elevator hall door panel 12, and is arranged below the elevator lobby. When the tail of the front elevator hall panel passes through the interception mechanism 4, the first blocking member rises and hooks the tail of the elevator hall panel, so that the front hall panel remains stationary. When the head of the rear elevator hall panel is transported to the preset position, the second blocking member rises to block the rear elevator hall panel from moving forward. After a certain distance is maintained between the head and tail of the two adjacent elevator hall panels, the first blocking member and the second blocking member descend, and under the action of the power roller 2, the two elevator hall panels continue to run while maintaining a distance. In this way, when the front elevator hall door panel 12 is coated, since the tail of the front elevator hall door panel 12 maintains a preset distance from the head of the rear elevator door panel, when the protective film is cut, the length of the protective film at both ends of the elevator hall panel can be accurately controlled.

[0089] Furthermore, the first and second blocking members in the interception mechanism 4 are respectively equipped with driving mechanisms and independently controlled to rise and fall. In this way, the first and second blocking members in the interception mechanism 4 can be respectively controlled to rise and fall according to specific application scenarios.

[0090] like Figure 6-7 As shown, the interception mechanism 4 includes: a first linear bearing 401 fixed to the frame 1, a guide shaft 402 slidably provided in the first linear bearing 401, a first mounting plate 403 fixed to the top of the guide shaft 402, a hook block 404 fixed to the first mounting plate 403 and serving as a first blocking member, and a hook block cylinder 405 installed on the frame 1 and linked to the first mounting plate 403. A second linear bearing 406 fixed to the first mounting plate 403, a blocking rod 407 slidably provided in the second linear bearing 406 and serving as a second blocking member, a second mounting plate 408 fixed to the bottom end of the blocking rod 407, and a blocking rod cylinder 409 installed on the first mounting plate 403 and linked to the second mounting plate 408.

[0091] In this embodiment, the piston rod of the hook block cylinder 405 acts on the first mounting plate 403. Under the action of the hook block cylinder 405 and the guide shaft 402, the first mounting plate 403 drives the hook block 404 to move in the vertical direction. On the first mounting plate 403, two hook blocks 404 are arranged side by side along the width direction of the frame 1.

[0092] In this embodiment, the blocking rod cylinder 409 and the second mounting plate 408 are both arranged below the first mounting plate 403, wherein the blocking rod cylinder 409 is fixed to the other side of the mounting hook block 404 of the first mounting plate 403, and the piston rod of the blocking rod cylinder 409 acts on the second mounting plate 408. When the piston rod of the blocking rod cylinder 409 performs telescopic movement, it drives the second mounting plate 408 to move in the vertical direction, and finally drives the blocking rod 407 fixed on the second mounting plate 408 and slidingly arranged on the first mounting plate 403 to perform lifting movement.

[0093] In this embodiment, two blocking rods 407 are arranged on the first mounting plate 403 along the width direction of the frame 1 .

[0094] In this embodiment, the hook block 404 as the first blocking member and the blocking rod 407 as the second blocking member are controlled by the hook block cylinder 405 and the blocking rod cylinder 409 to move up and down independently.

[0095] In other embodiments, the stopper 407 may be fixedly mounted on the first mounting plate 403, and the hook block 404 and the stopper 407 may be raised and lowered simultaneously by the hook block cylinder 405. When the tail of the front elevator hall door panel 12 is about to reach the hook block 404 position, the hook block 404 and the stopper 407 are raised simultaneously under the drive of the hook block cylinder 405, so that the raised hook block 404 is hooked on the tail of the front elevator hall door panel 12 so that the door panel does not move forward, and the raised stopper 407 blocks the rear elevator hall door panel 12, so that the head and tail of the two adjacent door panels maintain the same distance.

[0096] In this embodiment, the bottom surface of the elevator hall door panel 12 is provided with a blocking position. In the transmission direction of the elevator hall door panel 12, the blocking rod 407 is located upstream and abuts against the outer wall of the rear elevator hall door panel 12, and the hook block 404 is located downstream and extends into the blocking position of the front elevator hall door panel 12.

[0097] like Figure 2As shown, the film clamping mechanism 5 is arranged behind the intercepting mechanism 4 in the door panel transport direction. When the hall door panel 12 needs to be coated, the upper and lower clamping plates are separated up and down, the lower clamping plate is below the door panel, and the upper clamping plate guides the protective film 302 to meet the elevator hall door panel 12 that needs to be coated, so that the head of the door panel can touch the protective film. And as the hall door panel 12 moves, the protective film 302 gradually covers from the head to the tail of the hall door panel 12 to complete the coating. When the hall door panel 12 does not need to be coated, the lower clamping plate will rise to fit the upper clamping plate, clamp the protective film 302 between the upper and lower clamping plates and rise at the same time, so that the protective film 302 is away from the hall door panel 12 to avoid the elevator hall door panel 12 that does not need to be coated.

[0098] like Figure 8-9 As shown, the film clamping mechanism 5 specifically includes: a vertical guide rail 510 fixed to the frame 1, an upper slider 520 slidably mounted on the vertical guide rail 510, an upper clamping plate 521 fixed to the upper slider 520, and an upper clamping plate cylinder 522 installed on the frame 1 and linked to the upper slider 520. A lower slider 530 slidably mounted on the vertical guide rail 510, a lower clamping plate 531 fixed to the lower slider 530, and a lower clamping plate cylinder 532 installed on the frame 1 and linked to the lower slider 530.

[0099] Furthermore, there are two vertical guide rails 510, which are arranged side by side on both sides of the transmission path of the elevator hall door panel 12. There are two upper sliders 520, which are respectively installed on the vertical guide rails 510 on the corresponding sides, and the upper clamping plate 521 is connected between the two upper sliders 520. Under the synchronous movement of the upper sliders 520 on both sides, the upper clamping plate 521 can be lifted and lowered horizontally. There are two lower sliders 530, which are respectively installed on the vertical guide rails 510 on the corresponding sides, and the lower clamping plate 531 is connected between the two lower sliders 530 and is located directly below the upper clamping plate 521. Under the synchronous movement of the lower sliders 530 on both sides, the lower clamping plate 531 can be lifted and lowered horizontally.

[0100] Specifically, a first connecting plate 523 is installed on the upper slider 520, and an upper clamping plate connecting member 524 installed on the upper clamping plate 521 is fixedly connected to the first connecting plate 523. The piston rod of the upper clamping plate cylinder 522 is connected to the first connecting plate 523 through a cylinder connecting block 525 installed on the first connecting plate 523, thereby acting on the upper slider 520 and driving the upper slider 520 to move on the vertical guide rail 510.

[0101] Specifically, a second connecting plate 533 is installed on the lower slider 530, and the lower clamping plate connecting piece 534 installed on the lower clamping plate 532 is fixedly connected to the second connecting plate 533. The piston rod of the lower clamping plate cylinder 532 is connected to the second connecting plate 533 through the cylinder connecting block 535 installed on the second connecting plate 533, thereby acting on the lower slider 530 to drive the lower slider 530 to move on the vertical track 510.

[0102] like Figure 2 As shown, the film cutting mechanism 6 is arranged at a downstream position in the conveying direction of the elevator hall door panel 12. When the elevator hall door panel 12 is coated, the electric heating cutting wire descends to a preset position to cut off the protective film 302 and then rises to the initial position.

[0103] like Figure 10-11 As shown, the film cutting mechanism 6 includes: a lifting rod 601 slidably installed relative to the frame 1, two heating wire fixing plates 602 hinged at both ends of the lifting rod, an electric heating cutting wire 603 connected between the two heating wire fixing plates 602, and a spring 604 connected between the lifting rod 601 and at least one heating wire fixing plate 602 for tensioning the electric heating cutting wire 603.

[0104] In this embodiment, two relatively vertically arranged film cutting guide rails 605 are fixed on the frame 1, and film cutting sliders 606 are slidably installed on the two film cutting guide rails 605, respectively, and the lifting rod 601 is straddled between the two film cutting sliders 606. Furthermore, connecting blocks for connecting the ends of the lifting rod 601 are fixedly installed on the two film cutting sliders 606. The connecting blocks include two, one of which is a connecting block 607 connected to the film cutting slider 606, and the other is a connecting block 608 connected to the end of the lifting rod 601. A film cutting cylinder 609 is also fixedly arranged on the frame, and the end of the piston rod of the film cutting cylinder 609 is connected to the cylinder connecting block 610 arranged on the connecting block 607, so that the film cutting cylinder 609 drives the film cutting slider 606, and drives the lifting rod 601 to move on the film cutting guide rail 605.

[0105] In this embodiment, a heating wire fixing plate 602 and an electric heating cutting wire 603 connected between the two heating wire fixing plates 602 are also provided at both ends of the lifting rod 601. The electric heating cutting wire 603 can be a tungsten wire with a diameter of 1 mm, and the cutting wire can be quickly heated up by an external 24V power supply to quickly cut off the protective film 302.

[0106] In this embodiment, the heating fixing plate 602 is preferably made of bakelite to avoid leakage.

[0107] In this embodiment, both ends of the electric heating cutting wire 603 are respectively installed and fixed on the heating wire fixing plate 602 by means of a winding block 611 and a tightening nut 612. A spring fixing block 613 is arranged near at least one heating wire fixing plate 602. The spring 604 is connected between the spring fixing block 613 and the heating wire fixing block 602. The electric heating cutting wire 603 connected between the heating wire fixing blocks 602 is tensioned by the tension of the spring 604.

[0108] In this embodiment, the online laminating device has a laminating station, and the elevator hall door panel 12 after laminating is intercepted by the interception mechanism 4 and is kept at the laminating station. The film cutting mechanism 6 is divided into two sets, which are arranged at the upstream and downstream of the laminating station respectively, to cut off the film on the corresponding side of the elevator hall door panel 12.

[0109] like Figure 2 As shown, one set of film cutting mechanisms 6 is arranged downstream of the elevator hall door panel 12 in the conveying direction as the first film cutting mechanism 6 (that is, the position of the film cutting mechanism 6), and the other set of film cutting mechanisms is arranged behind the film clamping mechanism along the conveying direction of the elevator hall door panel 12 as the second film cutting mechanism 7.

[0110] Specifically, when both the front elevator hall door panel 12 and the rear elevator hall door panel 12 need to be coated, the front elevator hall door panel 12 continues to move forward after completing the coating at the coating station until the tail end is about to leave the coating device, and the first film cutting mechanism 6 at the tail end of the coating device is used to cut the protective film at the tail end of the door panel that has been coated in front. At this time, the rear hall door panel 12 is already at the coating station and starts coating.

[0111] Specifically, when the rear hall door panel 12 does not need to be coated, after the front elevator hall door panel 12 has completed coating, the second film cutting mechanism 7 located behind the film clamping mechanism 5 cuts the protective film 302 at the tail of the hall door panel 12, and the lower clamping plate 532 of the film clamping mechanism 5 rises to the position of the upper clamping plate 522, clamps the protective film 302 between the upper and lower clamping plates, and then the upper and lower clamping plates rise together to a position away from the elevator hall door panel 12, so that the elevator hall door panel 12 that does not need to be coated at the rear passes under the film clamping mechanism 5.

[0112] like Figure 3 As shown, the online film coating device further includes a pressing roller 8, which is escalably mounted on the frame 1 and is located above the elevator hall door panel 12, for compacting the film on the top surface of the elevator hall door panel 12. At least a portion of the power roller 2 is a top plate roller 9 escalably mounted on the frame, for cooperating with the pressing roller 8 to clamp the elevator hall door panel 12 up and down.

[0113] like Fig.12 As shown, the pressing roller 8 includes two corresponding vertical guide rails 801 vertically fixed on the frame, sliders 802 slidably mounted on the two vertical guide rails 801, and a roller 803 straddling between the two sliders 801. The roller 803 is arranged between the two sliders 802 through the roller axis 804, and a pressing roller cylinder 805 acting on the slider 802 is also arranged on the frame 1.

[0114] Specifically, the pressing roller cylinder 805 is connected to the slider 802 via the cylinder connecting plate 806, and the piston rod of the pressing roller cylinder 805 is fixedly connected to the frame 1 via the fixing block 807. When the pressing roller cylinder 805 is working, the telescopic piston rod changes the distance between the pressing roller cylinder 805 and the fixing block 807, so that the slider 802 drives the roller 803 to move up and down along the guide rail 801 in the vertical direction.

[0115] Specifically, the surface of the roller 803 is selected to be a polyurethane material in order not to damage the powder on the surface of the elevator hall door panel 12.

[0116] In this embodiment, a plurality of power rollers 2 are arranged under the elevator hall door panel 12, among which at least a portion of the top plate rollers 9 cooperate with the clamping rollers 8 arranged above the elevator hall door panel 12 to clamp the elevator hall door panel 12 up and down, so that during the lamination process, the protective film 302 is tightly attached to the top surface of the elevator hall door panel 12.

[0117] like Fig.13 As shown, the top plate roller 9 includes a mounting plate 910 arranged on a frame, two guide rods 901 vertically passing through the mounting plate 910, a connecting plate 902 is installed at the top of the two guide rods 901, and a roller 903 is arranged on the connecting plate 902. A cylinder 904 for driving the roller 903 to move up and down is arranged on the mounting plate 910, and a piston rod of the cylinder 904 is connected to the bottom of the connecting plate 902, so that the connecting plate 902 can drive the roller 903 to push up the bottom surface of the elevator hall door panel 12 when the piston rod of the cylinder 904 moves in a telescopic motion.

[0118] like Fig.14 As shown, the top plate roller 9 includes two sets of roller devices (911, 912) arranged side by side on the mounting plate 910 in the width direction of the frame, and the rollers can be controlled separately by independent cylinders.

[0119] like Figure 13-14As shown, a dead stopper 920 is also provided on the mounting plate 910, a guide rod 921 is passed through the mounting plate 910, a connecting plate 922 is fixed to the top of the guide rod 921, and the dead stopper 920 is provided on the connecting plate 922. The dead stopper 920 is driven by an independent cylinder 923. The cylinder 923 is provided on the mounting plate 910, and its piston rod acts on the connecting plate 922. When both the front and rear hall door panels 12 need to be coated, the first film cutting mechanism 6 cooperates with the dead stopper 920 when cutting the film. When the dead stopper 920 hooks the tail of the front hall door panel 12, the power roller 2 stops rotating. The first film cutting mechanism 6 starts to work, and cuts the film between the head of the front door panel and the door panel in front of the door panel. After the film cutting is completed, the dead stopper 920 descends, and the power roller 2 starts to continue to transport the hall door panel 12. During the whole film cutting process, the tail of the hall door panel 12 is limited by the dead stopper 920 to ensure the position of the head of the hall door panel 12, thereby ensuring the length of the film cut at the head of the hall door panel 12.

[0120] In this embodiment, at the entrance of the online laminating device, a power roller 2 below the elevator lobby and a pressing roller 8 above are arranged side by side in the vertical direction. When the head of the elevator lobby door panel 12 enters between the power roller 2 and the pressing roller 8, the elevator lobby door panel can move in a preset direction under the downward force applied by the pressing roller 8 on the surface of the lobby door panel 12 and the forward force of the power roller 2.

[0121] In this embodiment, when the elevator hall door panel 12 moves to the laminating station, during the laminating process, a top plate roller 9 is provided below the elevator hall door panel 12 to press upward against the bottom surface of the elevator hall door panel 12, and a pressure roller 8 applies downward pressure on the top surface of the elevator door panel. Under the joint action of the top plate roller 9 and the pressure roller, the protective film is attached to the top surface of the elevator hall door panel 12, and the bubbles between the protective film 302 and the surface of the hall door panel 12 are reduced, so that the protective film can be smoothly attached to the surface of the elevator hall door panel 12.

[0122] In this embodiment, a power roller 2 and a pressure roller 8 are arranged at the outlet of the online laminating device so that after the elevator hall door panel 12 completes the laminating, its head enters the power roller 2 and the pressure roller 8 and does not stay in the laminating device to affect the hall door panel 12 behind it, and quickly leaves the laminating device.

[0123] like Figure 15-16 As shown, the online laminating device also includes a guide wheel mechanism 10. The guide wheel mechanism 10 has two sets, which are arranged on both sides of the transmission path of the elevator hall door panel 12 to center the elevator hall door panel 12 in the width direction. Fig.12Taking the guide wheel mechanism on the left side in the middle as an example, they respectively include: a vertically arranged vertical shaft 1010, the vertical shaft 1010 is fixedly installed relative to the frame 1, or is slidably installed relative to the frame along the width direction of the elevator hall door panel 12, a horizontal shaft fixing part 1011 slidably installed on the vertical shaft 1010 and adjustable in height, a plurality of horizontal shafts 1012 slidingly penetrated through the horizontal shaft fixing part along the width direction of the elevator hall door panel 12, a guide wheel 1013 installed on each horizontal shaft 1012 toward one end of the transmission path of the elevator hall door panel 12, and the guide wheel axis on each horizontal shaft 1012 along the transmission direction of the elevator hall door panel 12 gradually changes from inclined to vertical to guide the elevator hall door panel 12 to be centered in the width direction.

[0124] Specifically, a guide wheel fixing block 1014 is further provided at one end of the transverse shaft 1012 connected to the guide wheel 1013, and the guide wheel 1013 is fixed on the guide wheel fixing block 1014. The guide wheel fixing block 1014 is rotatably mounted on the transverse shaft 1012, and the deflection angle of the guide wheel 1013 is adjusted by adjusting the angle between the guide wheel fixing block 1014 and the transverse shaft 1012. In this way, by adjusting the deflection angles of the multiple guide wheels 1013 located on both sides of the elevator hall door transmission path, the guide wheel axes on the transverse shafts 1012 on both sides are gradually changed from inclined to vertical to guide the elevator hall door panel 12 to be centered in the width direction.

[0125] In this embodiment, when the vertical shaft 1010 of the guide wheel mechanism 10 is fixedly installed relative to the frame 1, as shown in FIG. Fig.15 As shown, the guide wheel mechanism on the left side. The vertical shafts 1010 include four parallel shafts along the conveying path direction, and the four vertical shafts 1010 are relatively long. A vertical shaft fixing block 1015 is provided at the top of each vertical shaft so that the four vertical shafts 1010 remain parallel.

[0126] In this embodiment, when the vertical shaft 1020 of the guide wheel mechanism 10 is slidably installed relative to the frame along the width direction of the elevator hall door panel 12, as shown in FIG. Fig.15 As shown, the guide wheel mechanism on the right side. The vertical shaft 1020 includes two vertical shafts 1020 arranged side by side, and the length of the two vertical shafts 1020 is relatively short. The guide wheel mechanism 1020 on the right side also includes a horizontally arranged guide push rod 1021, which is slidably mounted on a fixed plate 1023 through a linear bearing 1022. One end of the guide push rod 1021 facing the transmission path of the hall door plate 12 is connected to the lower ends of the two vertical shafts 1020 through a vertical shaft fixing member 1024, and the other end of the guide push rod 1021 is provided with a push plate 1025. By manually pushing the push plate 1025, the guide push rod 1021 is driven to move in the width direction of the frame 1, so that the position of the guide wheel 1026 can be adjusted to adapt to hall door plates 12 of different widths. In this way, the guide wheels (1013, 1026) on both sides of the hall door plate 12 can be closely attached to both sides of the hall door plate 12.

[0127] like Fig.16As shown, the guide wheel mechanism 1020 on the right side also includes a scale rod 1027 arranged in parallel with the guide push rod 1021, one end of the scale rod 1027 is fixedly connected to the push plate 1025, and the other end is fixedly connected to the vertical axis fixing member 1023, and a plurality of slots with fixed intervals are provided along the length direction of the scale rod 1027. The fixing plate 1023 is provided with an avoidance hole for the scale rod 1027 to pass through, and a clamping plate 1028 is also provided on the fixing plate 1023, and the clamping plate 1028 can be clamped into a certain clamping slot of the scale rod 1027, thereby indirectly fixing the push plate 1026 at a fixed position, so that the guide wheel 1026 is fixed at a certain fixed position. When the width of the hall door panel 12 needs to be changed, the card plate 1028 is raised upward, and the push plate 1025 is pushed to change the position of the card slot on the scale rod 1027, and the appropriate card slot is reselected to insert the card plate 1028, thereby adjusting the width between the guide wheels on both sides.

[0128] In this embodiment, the outer surface of the guide wheels (1013, 1026) in the guide wheel mechanism 10 is made of polyurethane material, so as not to damage the outer surface of the hall door panel 12. By adjusting the deflection angle of each guide wheel and the width between the guide wheels on both sides, the elevator hall door panel 12 can be centered along the frame direction during the coating process, and the protective film 302 on the outer walls of the hall door panel 12 on both sides can be leveled under the action of the guide wheels that are attached to the hall door panels 12 on both sides.

[0129] like Figure 1 As shown, the online laminating device also includes a sensor 11 arranged on the frame 1 near the film storage mechanism 3. The sensor 11 is an infrared diffuse reflection photoelectric switch. When a roll of film is about to be used up, the black baffle at the end of the film will pass through the detection area of ​​the sensor 11. At this time, the sensor emits a signal, indicating that the roll of film is about to be used up, and the system generates a warning to prompt the operator to come and replace a new roll of film.

[0130] In this embodiment, when all elevator hall door panels 12 in the coating device are hall door panels 12 that need to be coated, it is necessary to ensure that the coating length of each hall door panel 12 is consistent at the head and tail, and the first film cutting mechanism 6 performs the film cutting action, and the film clamping mechanism 5 and the second film cutting mechanism 7 do not need to do anything and can just stay in place. The specific process is as follows:

[0131] 1. When the front hall door panel 12 enters the laminating device, after the head of the hall door panel 12 flows through the hook block 404, the hook block 404 is driven upward by the hook block cylinder 405. At the same time, the pressing roller 8 behind the interception mechanism 4 is driven by the pressing roller cylinder 805 to press down to the upper surface of the hall door panel 12;

[0132] 2. When the head of the current hall door panel 12 passes through the top plate roller 9, the roller 903 and the dead stopper 920 of the top plate roller 9 rise, and the roller 903 presses against the lower surface of the hall door panel 12, and the hall door panel 12 continues to be transported;

[0133] 3. When the tail of the previous hall door panel 12 runs to the hook 404 position, the tail of the hall door panel 12 is hooked by the hook 404 and cannot flow forward. At this time, the stop rod 407 is driven up by the stop rod cylinder 409 to wait for the next hall door panel 12 to flow in;

[0134] 4. When the next hall door panel 12 flows into the blocking rod 407, the pressing roller 8 in front of the interception mechanism 4 is driven by the pressing roller cylinder 805 to press down onto the next hall door panel 12;

[0135] 5. The power roller 2 starts, and the front and rear hall door panels 12 keep a fixed distance and move forward at a constant speed;

[0136] 6. When the tail of the previous hall door panel 12 is transported to the dead stop 920, the power roller 2 is paused, and the first film cutting mechanism 6 starts to work to cut the film at the head of the previous hall door panel 12;

[0137] 7. After the first film cutting mechanism 6 is reset, the roller 903 and the dead stopper 930 of the top plate roller 9 are lowered, the power roller 2 is started, and the front and rear hall door panels 12 maintain a fixed distance and move forward at a constant speed;

[0138] 8. Repeat the above steps.

[0139] In this embodiment, when the previous door panel in the film laminating device needs to be filmed, but the next door panel does not need to be filmed, at this time, the next hall door panel 12 does not need to be filmed, and the second film cutting mechanism 7 needs to cut off the film at the tail of the previous hall door panel 12, and the remaining film is clamped and lifted by the film clamping mechanism 5, so as to ensure that the subsequent door panel passes under the lower clamping plate 531 of the film clamping mechanism 5 without filming. The specific process is as follows:

[0140] 1. When the tail of the front hall door panel 12 reaches the hook block 404, the power roller 2 stops rotating;

[0141] 2. The lower clamping plate 531 of the film clamping mechanism 5 is lifted to fit the main upper clamping plate 521, and then the upper clamping plate 521 and the lower clamping plate 531 are lifted together to a certain height;

[0142] 3. The second film cutting mechanism 7 is actuated to cut the film between the film clamping mechanism 5 and the rear end of the previous hall door panel 12;

[0143] 4. The hook plate 404 descends, the power roller 2 starts, and the front hall door panel 12 continues to be transported forward without waiting for the rear door panel to enter.

[0144] 5. After the door panel 12 of the back hall that does not need to be coated enters, except for the power roller 2 that is always started, the other mechanisms in the device do not move.

[0145] In this embodiment, in the laminating device, when the front door panel does not need laminating, but the rear door panel needs laminating, the film clamping mechanism 5 needs to be operated to put down the film, so that the rear door panel can be laminating successfully. The specific process is as follows:

[0146] 1. The previous door panel is transported normally without waiting for the next door panel;

[0147] 2. After the tail of the front door panel is transported through the film clamping mechanism 5, the upper clamping plate 521 and the lower clamping plate 531 of the film clamping mechanism 5 move downward at the same time to ensure that the film is stretched to a fixed depth;

[0148] 4. The lower clamping plate 531 is lowered downwards alone, waiting for the next hall door panel 12 to flow in;

[0149] 5. The next hall door panel 12 passes between the upper clamping plate 521 and the lower clamping plate 531, and the head of the next hall door panel 12 can just support the pulled down film, and the lamination is successful;

[0150] 6. The hall door panel 12 continues to be transported.

[0151] The above-mentioned online film coating device for the elevator hall door panel 12 is provided with a hook block and a stopper that can be raised and lowered on the film coating device, and the interception mechanism is used to intercept or release the front and rear elevator hall door panels 12 respectively, so as to maintain the distance between the two, so that the film length at the front and rear ends of the elevator hall door panel 12 can be controlled when cutting the film. The film coating device is provided with upper and lower clamping plates that can be raised and lowered and cooperated with each other, and a film clamping mechanism for clamping the protective film is provided to cater to the elevator hall door panel 12 that needs to be coated, or to pull up the protective film to avoid the elevator hall door panel 12 that does not need to be coated, so that the online film coating device can coat the elevator hall door panels of different materials. The film cutting mechanism with an electric heating cutting wire that can be raised and lowered is provided on the film coating device to cut off the protective film at a predetermined position. Such a setting enables the online film coating device of the elevator hall door panel 12 to carry out targeted coating for the elevator hall door panels of different materials, and ensures that the film length reserved at the front and rear ends of the elevator hall door panel after coating meets the standard.

[0152] The present application can effectively solve the problem of online fixed-length lamination of the elevator hall door panel 12. The Q235A material hall door panel 12 is laminated to a fixed length online on the production line. If the current roll of film is used up, an alarm will be given in advance to prompt the operator to come and replace the film. There is no need for the operator to laminate the hall door panels 12 one by one, thus avoiding problems such as excessive lamination and low efficiency caused by human factors, ensuring production efficiency and guaranteeing 100% qualified products.

[0153] The present application provides an online laminating device for elevator hall door panels 12, which is compatible with elevator hall door panels 12 with a width of 370mm-570mm, and can perform fixed-length laminating on the hall door panels 12 online. It is particularly suitable for automated assembly line operations, and can achieve online real-time fixed-length laminating for Q235A material door panels in the production process, significantly reducing manpower and increasing efficiency, while ensuring the accuracy of online production, which is 100% consistent with production orders. It is also suitable for the modernization of equipment for enterprises with gradually expanding production scales, and can realize unmanned intelligent laminating. It can be extended to assembly line production lines for other sheet metal door panel products.

[0154] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0155] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An online film coating device for elevator hall door panels, comprising a frame, on which a power roller for conveying the elevator hall door panels and a film storage mechanism for providing a protective film are mounted, characterized in that: The online laminating device also includes: The interception mechanism has a first and a second stopper that can be raised and lowered, and is used to intercept or release the front and rear elevator hall door panels respectively to maintain the distance between them; The film clamping mechanism has upper and lower clamping plates that can be raised and lowered separately and cooperate with each other, and is used to clamp the protective film to cater to the elevator hall door panels that need to be coated, or to lift the protective film to avoid the elevator hall door panels that do not need to be coated; Film cutting mechanism, with an electric heating cutting wire that can be raised and lowered, used to cut off the protective film at a predetermined position; The first and second blocking members in the interception mechanism are respectively equipped with driving mechanisms and independently controlled to rise and fall. The interception mechanism comprises: A first linear bearing fixed to the frame; A guide shaft slidably disposed in the first linear bearing; A first mounting plate fixed to the top end of the guide shaft; A hook block fixed to the first mounting plate and serving as a first blocking member; A hook block cylinder mounted on the frame and linked to the first mounting plate; A second linear bearing fixed to the first mounting plate; A blocking rod slidably disposed in the second linear bearing and serving as a second blocking member; A second mounting plate fixed to the bottom end of the barrier rod; A stop rod cylinder mounted on the first mounting plate and linked to the second mounting plate; The bottom surface of the elevator hall door panel is provided with a blocking position. In the transmission direction of the elevator hall door panel, the blocking rod is located upstream and abuts against the outer side wall of the rear elevator hall door panel, and the hook block is located downstream and extends into the blocking position of the front elevator hall door panel; The film clamping mechanism comprises: A vertical guide rail fixed to the frame; An upper slider slidably mounted on the vertical guide rail; An upper clamping plate fixed to the upper slider; An upper clamping plate cylinder mounted on the frame and linked to the upper slider; A lower slider slidably mounted on the vertical guide rail; A lower clamping plate fixed to the upper slider; A lower clamping plate cylinder is installed on the frame and linked with the upper slider.

2. The online coating device according to claim 1, characterized in that: The online film coating device further comprises a pressing roller, which is escalably mounted on the frame and is located above the elevator hall door panel, and is used to compact the film on the top surface of the elevator hall door panel; At least a portion of the power roller is a top plate roller installed on the frame and can be raised and lowered, and is used to cooperate with the clamping roller to clamp the elevator hall door panel up and down.

3. The online coating device according to claim 1, characterized in that: There are two vertical guide rails, which are arranged side by side on both sides of the elevator hall door panel transmission path. There are two upper sliders, which are respectively installed on the vertical guide rails on the corresponding sides, and the upper clamping plate is bridged between the two upper sliders; there are two lower sliders, which are respectively installed on the vertical guide rails on the corresponding sides, and the lower clamping plate is bridged between the two lower sliders and is directly below the upper clamping plate.

4. The online coating device according to claim 1, characterized in that: The online laminating device has a laminating station, and the elevator hall door panel that has completed lamination is intercepted by the interception mechanism and retained at the laminating station. The film cutting mechanism is divided into two sets, which are arranged at intervals at the upstream and downstream of the laminating station respectively, so as to separate the lamination on the corresponding sides of the elevator hall door panel.

5. The online coating device according to claim 1, characterized in that: The film cutting mechanism comprises: A lifting rod slidably mounted relative to the frame; Two heating wire fixing plates hinged to both ends of the lifting rod; An electric heating cutting wire connected between the two heating wire fixing plates; A spring connected between the lifting rod and at least one heating wire fixing plate for tensioning the electric heating cutting wire.

6. The online coating device according to claim 1, characterized in that: The online laminating device further comprises a guide wheel mechanism, wherein two sets of the guide wheel mechanism are respectively arranged on both sides of the elevator hall door panel transmission path for centering the elevator hall door panel in the width direction, and each set of the guide wheel mechanism comprises: A vertically arranged vertical shaft, wherein the vertical shaft is fixedly mounted relative to the frame, or slidably mounted relative to the frame along the width direction of the elevator hall door panel; A transverse axis fixing member slidably mounted on the vertical axis and having an adjustable height; A plurality of transverse shafts slidably arranged in the transverse shaft fixing member along the width direction of the elevator hall door panel; The guide wheels installed on each transverse axis at one end of the elevator hall door panel transmission path gradually change from inclined to vertical along the elevator hall door panel transmission direction to guide the elevator hall door panel to be centered in the width direction.

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