Elevator door panel production line

Abstract

The application provides an elevator door plate production line, and relates to the technical field of elevator door plate processing. The elevator door plate production line comprises a punching device, a bending device, a reinforcing rib placing device, a welding device, a blanking device, a conveying device, a material lifting mechanism, a material placing mechanism, a horizontal rod, a second groove, a material placing lead screw, a second motor, a material placing guide block, a material placing mounting plate, a guide seat, a guide rod, a guide component, a guide rail, a material moving frame and a material placing suction disc. The two ends of the guide rail are respectively provided with contact switches matched with the guide component. The elevator door plate production line can effectively compress the height of the horizontal rod, so that the distance between the horizontal rod and the conveying device can meet the movement and placement of the plate. Compared with the traditional mechanical arm feeding, the overall activity height of the equipment can be greatly reduced, the requirement for the site is low, the constraint on the installation of adjacent equipment can be reduced, the installation and debugging difficulty is lower than that of the mechanical arm, and the use is convenient.

Description

Technical Field

[0001] This invention relates to the field of elevator door panel processing technology, specifically an elevator door panel production line. Background Technology

[0002] As a part of the elevator, the elevator door panel plays a very important role in safety. The elevator door panel includes the fixed hall door and the car door that moves with the car. The hall door is located at each floor and is used to isolate the elevator shaft, while the car door is used to close the car.

[0003] The production process of elevator door panels includes multiple steps such as loading, punching, bending, welding, and unloading. In the current production process of loading elevator door panels, the working end of the robotic arm is equipped with a suction cup. The position of the suction cup is controlled by the back and forth swing of the robotic arm, and the suction cup picks up the board material and places it on the production line for subsequent production processes. However, because the robotic arm has a large range of motion, a large amount of space needs to be reserved during loading, which places high demands on the site. Moreover, the installation and debugging of the robotic arm is also quite troublesome. Summary of the Invention

[0004] The purpose of this invention is to provide an elevator door panel production line, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: the elevator door panel production line includes punching equipment, bending equipment, reinforcing rib placement equipment, welding equipment, and blanking equipment, and further includes:

[0006] A conveying device for transporting sheet metal to different workstations for processing;

[0007] The material lifting mechanism includes a base, on which a mounting rod is provided. A first groove is formed on one side of the mounting rod, and a material lifting screw is provided inside the first groove. The mechanism also includes a first motor for controlling the rotation of the material lifting screw. A material lifting guide block that cooperates with the material lifting screw slides inside the first groove. A material lifting mounting plate is provided on one side of the material lifting guide block. Extension rods are provided at both ends of the material lifting mounting plate. A material lifting frame is provided at the end of the extension rod away from the material lifting mounting plate. A material lifting suction cup is provided on the lower surface of the material lifting frame.

[0008] The feeding mechanism includes a crossbar with a second groove on its lower side. A feeding screw is installed inside the second groove. A second motor is also included to control the rotation of the feeding screw. A feeding guide block, cooperating with the feeding screw, slides inside the second groove. A feeding mounting plate is installed on the lower surface of the feeding guide block. Guide seats are installed on both sides of the feeding mounting plate. A guide rod is slidably connected inside the guide seat. A guide component is installed at the upper end of the guide rod. A guide rail, cooperating with the guide component, is installed on the crossbar. A material transfer frame is installed at the lower end of the two guide rods. The material transfer frame is located between two lifting frames. A feeding suction cup is installed on the lower surface of the material transfer frame.

[0009] Preferably, the punching device is used to punch holes in the sheet metal conveyed by the conveying device; the bending device is used to bend the sheet metal that has been punched on the conveying device; the reinforcing rib placement device is used to place the reinforcing rib frame inside the sheet metal that has been bent on the conveying device; the welding device is used to weld the sheet metal and the reinforcing rib frame conveyed on the conveying device; and the unloading device is used to unload the welded sheet metal from the conveying device to the outside of the conveying device.

[0010] Preferably, the guide component includes a mounting cap disposed at the top of the guide rod, a roller rotatably connected to the mounting cap, a guide groove for the roller to move on the guide rail, and a contact switch disposed at both ends of the guide groove.

[0011] Preferably, it also includes contact switches and a controller, with the controller mounted on the crossbar and two contact switches located at opposite ends of the guide groove.

[0012] Preferably, auxiliary positioning rails are provided on both sides of the mounting rod and on both sides of the crossbar, the lifting mounting plate is slidably connected to the auxiliary positioning rails on the mounting rod, and the discharging mounting plate is slidably connected to the auxiliary positioning rails on the crossbar.

[0013] Preferably, a connecting plate is provided between the mounting rod and the crossbar, and the connecting plate is connected to the mounting rod and the crossbar respectively by bolts.

[0014] Preferably, a support plate is provided at the end of the crossbar away from the mounting rod, and a clamping plate is provided at the lower end of the support plate, the clamping plate being fixedly connected to the conveying device.

[0015] Preferably, a positioning platform is provided between the base and the conveying device, and a placement slot is provided on the positioning platform.

[0016] The beneficial effects of this invention are:

[0017] This elevator door panel production line can effectively reduce the height of the crossbar, so that the distance between the crossbar and the conveying equipment is sufficient for the movement and placement of the panels. Compared with traditional robotic arm feeding, it can greatly reduce the overall operating height of the equipment, has low site requirements, and reduces the constraints on the installation of adjacent equipment. The installation and debugging difficulty is also lower than that of robotic arms, and it is easy to use. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0019] Figure 2 This is a simplified diagram of a production line according to a specific embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of a transmission device according to a specific embodiment of the present invention.

[0021] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0022] Figure 5 This is a cross-sectional view of the mounting rod and crossbar according to a specific embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the material lifting installation plate according to a specific embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the material feeding mounting plate according to a specific embodiment of the present invention.

[0025] In the diagram: 1. Punching equipment; 2. Bending equipment; 3. Reinforcing rib placement equipment; 4. Welding equipment; 5. Material feeding equipment; 6. Conveying equipment; 7. Sheet metal; 8. Base; 9. Mounting rod; 10. Lifting screw; 11. First motor; 12. Lifting guide block; 13. Lifting mounting plate; 14. Extension rod; 15. Lifting frame; 16. Lifting suction cup; 17. Crossbar; 18. Discharge screw; 19. Second motor; 20. Discharge guide block; 21. Discharge mounting plate; 22. Guide seat; 23. Guide rod; 24. Guide rail; 25. Material transfer frame; 26. Discharge suction cup; 27. Contact switch; 28. Mounting cap; 29. ​​Roller; 30. Controller; 31. Auxiliary positioning rail; 32. Connecting plate; 33. Support plate; 34. Clamping plate; 35. Positioning platform; 36. Limit block. Detailed Implementation

[0026] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0027] like Figure 1-7As shown, an elevator door panel production line includes a punching machine 1, a bending machine 2, a reinforcing rib placement machine 3, a welding machine 4, and a blanking machine 5, and also includes:

[0028] Conveying device 6 is used to transport sheet 7 to different work stations for processing. Conveying device 6 is a roller conveyor. The outer surface of the roller on the roller conveyor is covered with a rubber sleeve to reduce the friction between sheet 7 and roller, and at the same time reduce the noise when sheet 7 contacts roller.

[0029] The lifting mechanism includes a base 8, on which a mounting rod 9 is provided. A first groove is provided on one side of the mounting rod 9, and a lifting screw 10 is provided inside the first groove. The mechanism also includes a first motor 11 for controlling the rotation of the lifting screw 10. A lifting guide block 12 that cooperates with the lifting screw 10 slides inside the first groove. A lifting mounting plate 13 is provided on one side of the lifting guide block 12. Extension rods 14 are provided at both ends of the lifting mounting plate 13. A lifting frame 15 is provided at the end of the extension rod 14 away from the lifting mounting plate 13. Only the upper end face of the lifting frame 15 is connected to the extension rod 14 by a hinge, so that the lifting frame 15 can remain horizontal under the action of gravity. At the same time, the lifting frame 15 can also be rotated upward at a certain angle. A limiting block 36 for limiting the rotation angle of the lifting frame 15 is also provided on the upper end face of the end of the extension rod 14 that is hinged to the lifting frame 15. A lifting suction cup 16 is provided on the lower surface of the lifting frame 15.

[0030] The feeding mechanism includes a crossbar 17, a second groove on the lower side of the crossbar 17, a feeding screw 18 inside the second groove, and a second motor 19 for controlling the rotation of the feeding screw 18. A feeding guide block 20 that cooperates with the feeding screw 18 slides inside the second groove. A feeding mounting plate 21 is provided on the lower surface of the feeding guide block 20. Guide seats 22 are provided on both sides of the feeding mounting plate 21. A guide rod 23 is slidably connected inside the guide seat 22. A guide component is provided at the upper end of the guide rod 23. A guide rail 24 that cooperates with the guide component is provided on the crossbar 17. The guide rail 24 includes lifting curved parts at both ends, a feeding curved part, and a transition part in the middle. A transfer frame 25 is provided at the lower end of the two guide rods 23. The transfer frame 25 is located between the two lifting frames 15. A feeding suction cup 26 is provided on the lower surface of the transfer frame 25.

[0031] When placing the sheet 7 onto the conveying device 6, the stack of arranged sheet 7 is first moved to a predetermined position. The sheet 7 at this position is directly below the lifting suction cup 16 and can be attracted by the lifting suction cup 16. Specifically, the first motor 11 is started, and the first motor 11 drives the lifting screw 10 to rotate. Through the cooperation of the lifting screw 10 and the lifting guide block 12, the lifting mounting plate 13, extension rod 14, lifting frame 15 and lifting suction cup 16 are moved downward. When the lifting suction cup 16 contacts the placed sheet 7 at the top, the lifting suction cup 16 is attracted to the sheet 7. Then the first motor 11 is reversed, so that the sheet 7 moves upward. The height of the upward movement of the sheet 7 is a predetermined value, that is, any sheet 7 in the stack of sheet 7 is attracted by the lifting suction cup 16 and moved to a fixed lifting height.

[0032] Once the sheet 7 has moved to the predetermined height, the second motor 19 starts and drives the feeding screw 18 to rotate. The feeding screw 18, in conjunction with the feeding guide block 20, causes the feeding guide block 20 to move along the crossbar 17, and drives the feeding mounting plate 21 to move along with the feeding guide block 20. During the movement of the feeding mounting plate 21, the guide seat 22, guide rod 23, material transfer frame 25, and feeding suction cup 26 are also moved synchronously. The feeding of material below is controlled by the cooperation between the guide component on the mounting cap 28 at the upper end of the guide rod 23 and the guide rail 24. The height of the suction cup 26 is such that when the guide component is located at the transition part of the guide rail 24, the height of the discharge suction cup 26 is higher than the height of the plate 7 at the lifting height. As the guide component moves from the transition part into the lifting bend of the guide rail 24 and continues until the bottom of the lifting bend, the distance between the height of the discharge suction cup 26 and the plate 7 at the lifting height gradually decreases until the discharge suction cup 26 is in complete contact with the plate 7. At the same time, the bottom of the discharge suction cup 26 experiences slight compression to form a sealed space between the discharge suction cup 26 and the plate 7. At this time, the second... Motor 19 stops rotating, and the feeding suction cup 26 operates to pick up the sheet metal 7 that has already been picked up by the lifting suction cup 16. After the feeding suction cup 26 picks up the sheet metal 7, air is blown into the lifting suction cup 16 to separate it from the sheet metal 7. Then, the second motor 19 reverses, driving the feeding suction cup 26 to move towards the conveying device 6. As the guide component moves from the lifting curved part on the guide rail 24 to the transition part, the sheet metal 7 located at the feeding suction cup 26 moves upward at an angle. Since the lifting frame 15 can flip upward, At a certain angle, the plate 7 can move normally with the feeding suction cup 26. When the guide component enters the feeding bending section from the transition section and enters the bottom of the feeding bending section, the plate 7 on the feeding suction cup 26 enters from the outside of the conveying device 6 and is placed on the conveying device 6. At this time, the feeding suction cup 26 still adsorbs the plate 7. By blowing air into the feeding suction cup 26, the feeding suction cup 26 is separated from the plate 7. At this time, the plate 7 can be placed stably on the conveying device 6, thereby realizing the feeding of the plate 7.

[0033] Furthermore, punching equipment 1 is used to punch holes in the sheet metal 7 conveyed by conveying equipment 6; bending equipment 2 is used to bend the punched sheet metal 7 on conveying equipment 6; reinforcing rib placement equipment 3 is used to place the reinforcing rib frame inside the bent sheet metal 7 on conveying equipment 6; welding equipment 4 is used to weld the sheet metal 7 conveyed by conveying equipment 6 and the reinforcing rib frame; unloading equipment 5 is used to unload the welded sheet metal 7 from conveying equipment 6 to the outside of conveying equipment 6. The processing steps of sheet metal 7 are as follows:

[0034] Step 1: Place the sheet material 7 onto the conveyor device 6;

[0035] Step 2: Punch holes in the board material;

[0036] Step 3: Bend the side of board 7;

[0037] Step 4: Place the reinforcing ribs onto plate 7;

[0038] Step 5: Weld the reinforcing ribs onto plate 7;

[0039] Step 6: Remove the sheet 7 from the conveyor 6.

[0040] The punching equipment 1, bending equipment 2, reinforcing rib placement equipment 3, welding equipment 4, and blanking equipment 5 used in the above steps are all existing technologies and are relatively mature. They will not be elaborated on here, but this does not affect the full disclosure of this application.

[0041] Furthermore, the guiding component includes a mounting cap 28 disposed at the top of the guide rod 23, on which a roller 29 is rotatably connected. A guide groove for the movement of the roller 29 is provided on the guide rail 24. The mounting cap 28 and the guide rod 23 are connected by a thread. The mounting cap 28 is an extension of the guide rod 23. By controlling the length of the threaded connection area between the mounting cap 28 and the guide rod 23, the horizontal height of the material feeding suction cup 26 located at the bottom is controlled, which facilitates the application of conveying equipment 6 of different heights. The roller 29 is located in the guide groove and can only roll or slide in the guide groove. The jump height of the roller 29 in the guide groove is less than 1mm, so as to ensure that the material feeding suction cup 26 can stably adsorb and place the plate 7.

[0042] Furthermore, it also includes contact switches 27 and a controller 30. The controller 30 is mounted on the crossbar 17. There are two contact switches 27, located at opposite ends of the guide groove. Specifically, the two contact switches 27 are located on the bottom top wall of the lifting bend and the bottom top wall of the discharging bend, respectively. The controller 30 receives signals from the contact switches 27. When the roller 29 contacts the contact switch 27 in the lifting bend, the controller 30 receives the signal and controls the second motor 19 to change from an operating state to a stopped state. The stopped state is maintained for 1 second, and then the first motor 11 is controlled to reverse and operate. Within 1 second while the second motor 19 remains stopped, the controller 30 controls the feeding suction cup 26 to complete the adsorption of the board 7. When the roller 29 contacts the outlet switch in the feeding bend, the board 7 is located on the conveying device 6. The controller 30 receives this signal, the second motor 19 stops rotating and enters a stop state. The stop state is maintained for 1 second, and then the controller controls the second motor 19 to reverse again. Within 1 second while the second motor 19 remains stopped, the controller 30 controls the feeding suction cup 26 to release the board 7, thereby achieving the adsorption and release of the board 7 through the contact switch.

[0043] The working state of the first motor 11 and the lifting suction cup 16 is also controlled by the controller 30. The lifting suction cup 16 is moved to the height of the topmost plate 7 in the stack of plates 7 by manual control. Then, according to the thickness of the plate 7, the controller 30 is set to reduce the descent height of the lifting suction cup 16 by the thickness of one plate 7 each time it is lifted, so as to achieve the adsorption and gripping of plates 7 at different heights. The same number of plates 7 are stacked each time, such as 200 plates 7. In this mode, the height of the stack of plates 7 and the thickness of the plates 7 can be pre-input into the controller 30, eliminating the need for the first manual operation and reducing the workload.

[0044] Furthermore, auxiliary positioning rails 31 are respectively provided on both sides of the mounting rod 9 and both sides of the crossbar 17. The lifting mounting plate 13 is slidably connected to the auxiliary positioning rails 31 on the mounting rod 9, and the discharging mounting plate 21 is slidably connected to the auxiliary positioning rails 31 on the crossbar 17. The two ends of the lifting mounting plate 13 and the discharging mounting plate 21 are respectively engaged with the auxiliary positioning rails 31 to improve the stability of the lifting mounting plate 13 and the discharging mounting plate 21 when moving, and ensure that the plate 7 can be transported smoothly.

[0045] Furthermore, a connecting plate 32 is provided between the mounting rod 9 and the crossbar 17. The connecting plate 32 is connected to the mounting rod 9 and the crossbar 17 respectively by bolts, thereby improving the connection strength between the mounting rod 9 and the crossbar 17 and improving their stability during operation.

[0046] Furthermore, a support plate 33 is provided at the end of the crossbar 17 away from the mounting rod 9, and a clamping plate 34 is provided at the lower end of the support plate 33. The clamping plate 34 is fixedly connected to the conveying device 6. The support plate 33 is used to support the crossbar 17 so that the crossbar 17 can be stably kept in a horizontal state. The clamping plate 34 can be clamped on one side of the conveying device 6 and fixed to the conveying device 6 by bolts to prevent the support plate 33 from tilting to the side.

[0047] Furthermore, a positioning platform 35 is provided between the base 8 and the conveying device 6. The positioning platform 35 has a placement slot. The position of the positioning platform 35 matches the lifting suction cup 16 and the discharging suction cup 26, so that the plate 7 located on the positioning platform 35 can be accurately placed on the conveying device 6 after being transferred by the lifting suction cup 16 and the discharging suction cup 26. This predetermined position can facilitate the subsequent processing of the plate 7. That is, the discharging suction cup 26 can simultaneously realize the functions of discharging and positioning the plate with the cooperation of the guide rail 24.

[0048] This elevator door panel production line can effectively reduce the height of the crossbar 17, so that the distance between the crossbar 17 and the conveying equipment 6 can meet the needs of moving and placing the board 7. Compared with the traditional robotic arm feeding, it can greatly reduce the overall operating height of the equipment, has low site requirements, and can reduce the constraints on the installation of adjacent equipment. The installation and debugging difficulty is also lower than that of the robotic arm, and it is easy to use.

[0049] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An elevator door panel production line, characterized in that, The system includes a punching device (1), a bending device (2), a reinforcing rib placement device (3), a welding device (4), and a blanking device (5). The punching device (1) is used to punch holes in the sheet metal (7) conveyed by the conveying device (6); the bending device (2) is used to bend the sheet metal (7) on the conveying device (6) that has been punched; the reinforcing rib placement device (3) is used to place the reinforcing rib frame inside the sheet metal (7) on the conveying device (6) that has been bent; the welding device (4) is used to weld the sheet metal (7) conveyed by the conveying device (6) and the reinforcing rib frame; and the blanking device (5) is used to unload the welded sheet metal (7) on the conveying device (6) to the outside of the conveying device (6). The system also includes: Conveying device (6), the conveying device (6) is used to transport the sheet (7) to different work sites for processing; The lifting mechanism includes a base (8), on which an installation rod (9) is provided. A first groove is provided on one side of the installation rod (9). A lifting screw (10) is provided inside the first groove. The mechanism also includes a first motor (11) for controlling the rotation of the lifting screw (10). A lifting guide block (12) that cooperates with the lifting screw (10) slides inside the first groove. A lifting mounting plate (13) is provided on one side of the lifting guide block (12). Extension rods (14) are provided at both ends of the lifting mounting plate (13). A lifting frame (15) is provided at one end of the extension rod (14) away from the lifting mounting plate (13). A lifting suction cup (16) is provided on the lower surface of the lifting frame (15). The feeding mechanism includes a crossbar (17), a second groove is provided on the lower side of the crossbar (17), a feeding screw (18) is provided inside the second groove, and a second motor (19) is also provided for controlling the rotation of the feeding screw (18). A feeding guide block (20) that cooperates with the feeding screw (18) is slidably provided inside the second groove. A feeding mounting plate (21) is provided on the lower surface of the feeding guide block (20). Guide seats (22) are provided on both sides of the feeding mounting plate (21). A guide rod (23) is slidably connected inside the guide seat (22). A guide component is provided at the upper end of the guide rod (23). A guide rail (24) that cooperates with the guide component is provided on the crossbar (17). A material transfer frame (25) is provided at the lower end of the two guide rods (23). The material transfer frame (25) is located between two lifting frames (15). A feeding suction cup (26) is provided on the lower surface of the material transfer frame (25). It also includes a contact switch (27) and a controller (30), the controller (30) being mounted on the crossbar (17), and two contact switches (27) being mounted at the two ends of the guide groove respectively; The guide component includes a mounting cap (28) at the top of the guide rod (23), a roller (29) is rotatably connected to the mounting cap (28), a guide groove for the roller (29) to move is provided on the guide rail (24), and the contact switch (27) is provided at both ends of the guide groove.

2. The elevator door panel production line according to claim 1, characterized in that, Auxiliary positioning rails (31) are provided on both sides of the mounting rod (9) and on both sides of the crossbar (17). The lifting mounting plate (13) is slidably connected to the auxiliary positioning rails (31) on the mounting rod (9), and the discharging mounting plate (21) is slidably connected to the auxiliary positioning rails (31) on the crossbar (17).

3. The elevator door panel production line according to claim 2, characterized in that, A connecting plate (32) is provided between the mounting rod (9) and the crossbar (17), and the connecting plate (32) is connected to the mounting rod (9) and the crossbar (17) respectively by bolts.

4. The elevator door panel production line according to claim 3, characterized in that, A support plate (33) is provided at one end of the crossbar (17) away from the mounting rod (9), and a clamping plate (34) is provided at the lower end of the support plate (33). The clamping plate (34) is fixedly connected to the conveying device (6).

5. The elevator door panel production line according to claim 4, characterized in that, A positioning platform (35) is provided between the base (8) and the conveying device (6), and a placement slot is provided on the positioning platform (35).

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