A conveying device for elevator door production

Abstract

This utility model discloses a conveying device for elevator door production, comprising: a base, a conveying mechanism disposed inside the top of the base, a platform fixedly connected to the left side of the base, two sets of tracks disposed at the top of the platform, a transport trolley in frictional contact on the left side of the base, an L-shaped limiting plate fixedly connected to the top of the transport trolley, a guide rail provided at the top edge of the transport trolley, a lead screw passing through the inside of the guide rail, a rocker arm fixedly connected to the left side of the lead screw passing through the transport trolley, and a connecting block movably connected to the outside of the lead screw. The transport trolley is provided with a fixed L-shaped limiting plate, which can limit the right side and rear end of the elevator door panel to ensure accurate initial positioning. The hydraulic rod is moved laterally by the lead screw mechanism to make it coincide with the diagonal of the elevator door, and then the corner is clamped by the correction block to achieve bidirectional synchronous fixing, making the door panels more neatly arranged and the transportation more stable.

Description

Technical Field

[0001] This utility model relates to the field of elevator door panel production technology, specifically to a conveying device for elevator door production. Background Technology

[0002] Elevator doors are a crucial component of elevators. There are two types of doors: the landing doors, visible from the outside and fixed to each floor, and the car doors, visible from the inside and fixed to the car as it moves. The car doors typically open and close in tandem with the landing doors. The production process of elevator doors utilizes a conveyor system to transport the door panels, thereby improving the production efficiency of the elevator door panels.

[0003] A search revealed that Chinese patent CN222475488U discloses a door panel conveying device for elevator production. This device, driven by a trolley, performs initial conveying of door panels. Combined with an electromagnetic chuck, slider, and first electric push rod, it enables automated conveying of door panels. The fixed plate, sliding rod, moving block, and clamping frame ensure stable fixation of the door panels on the trolley. The clamping frame can be adjusted according to the door panel size, increasing the device's applicability and flexibility. The return spring ensures the clamping frame automatically resets after the door panel is released, facilitating subsequent use. Furthermore, the second electric push rod enhances the stability of the trolley when unloading door panels, thus guaranteeing the quality of door panel conveying. However, the following technical problems still exist:

[0004] Because the size of elevator doors is not completely standardized and is set according to the type, purpose, load standard and relevant specifications of the elevator, the current device only uses springs to control the clamping frames on both sides to clamp and fix the elevator door panel. This not only has poor applicability, but is also not flexible enough in use. Therefore, we propose a conveying device for elevator door production. Utility Model Content

[0005] The purpose of this utility model is to provide a conveying device for elevator door production, in order to solve the problem mentioned in the background art that, since the size of elevator doors is not completely uniform and is set according to the type, purpose, load standard and related specifications of the elevator, the device only uses springs to control the clamping frames on both sides to clamp and fix the elevator door panel, which not only has poor applicability but is also not flexible enough in use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a conveying device for elevator door production, comprising: a base, a conveying mechanism disposed inside the top of the base, a platform fixedly connected to the left side of the base, two sets of tracks disposed at the top of the platform, a transport trolley in frictional contact with the left side of the base, an L-shaped limiting plate fixedly connected to the top of the transport trolley, a guide rail provided at the top edge of the transport trolley, a lead screw passing through the inside of the guide rail, a rocker arm fixedly connected to the left side of the lead screw passing through the transport trolley, a connecting block movably connected to the outside of the lead screw, a slider fixedly connected to the top of the connecting block, two sets of hydraulic rods fixedly connected to the top of the slider, a connecting column fixedly connected between the two sets of hydraulic rods, an installation block fixedly connected to the right telescopic end of the hydraulic rod, and a correction block fixedly connected to the right side of the installation block.

[0007] Preferably, the transport trolley is provided with pulleys at the four corners of its bottom, a handrail is fixedly connected to the left side of the transport trolley, two sets of arc-shaped protrusions are provided on the right side of the transport trolley, a cavity is opened in the middle of the arc-shaped protrusions, a rotating shaft passes through the cavity, a knob is fixedly connected to the front end of the rotating shaft through the transport trolley, two sets of latches are fixedly connected to the periphery of the rotating shaft, an elastic element is fixedly connected to the top of the latches, and two sets of arc-shaped grooves are opened on the right side of the base, with buckles fixedly connected inside the arc-shaped grooves.

[0008] Preferably, the right side of the correction block is provided with a right-angle notch, and the right-angle notch is perpendicular to the right angle of the L-shaped limiting plate.

[0009] Preferably, the connecting block is threadedly connected to the lead screw, and the lead screw and the slider form a linkage structure through the connecting block.

[0010] Preferably, the pulley is slidably connected to the track.

[0011] Preferably, the knob is linked to the latch via the rotating shaft, the elastic element is fixedly connected to the transport trolley, and the latch is elastically connected to the transport trolley via the elastic element.

[0012] Preferably, the position of the arc-shaped protrusion corresponds to the arc-shaped groove, the left end of the latch is inclined, and the latch engages with the buckle.

[0013] Preferably, each of the base and the platform has a set of support frames at its top, and a crossbeam is fixedly connected to the middle of the two sets of support frames. A motor is installed at the center of the right side of the right support frame. A moving mechanism is provided inside the crossbeam, and an electric push rod is movably connected to the bottom of the crossbeam through the moving mechanism. An electromagnetic chuck is installed at the bottom of the electric push rod.

[0014] Compared with the prior art, the conveying device for elevator door production provided by this utility model has the following advantages:

[0015] 1. Precise positioning and stable clamping: The transport trolley is equipped with a fixed L-shaped limit plate, which can limit the right side and rear end of the elevator door panel to ensure accurate initial positioning. The hydraulic rod is moved laterally by the screw mechanism to make it coincide with the diagonal of the elevator door. Then, the corner is clamped by the correction block to achieve bidirectional synchronous fixation, making the door panel more neatly placed and the transportation more stable.

[0016] 2. Guided transport and anti-deviation: A track system is installed on the elevated platform to ensure that the transport trolley travels along the predetermined route and avoids deviation. The trolley is fixed with a locking mechanism to form a stable transfer line with the conveying mechanism, further improving the conveying accuracy.

[0017] 3. Improve overall conveying quality: Through multiple limiting, clamping and guiding designs, the misalignment or shaking of the door panel during transportation is effectively reduced, ensuring the efficiency and consistency of the elevator door production process. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the transport trolley of this utility model;

[0020] Figure 3 This is a top sectional view of the transport trolley of this utility model;

[0021] Figure 4 This is a schematic diagram of a partial structure of the latch of this utility model.

[0022] In the picture:

[0023] 1. Base; 12. Conveying mechanism; 13. Support frame; 14. Crossbeam; 15. Platform; 151. Track;

[0024] 2. Motor; 21. Electric linear actuator; 22. Electromagnetic chuck;

[0025] 3. Transport trolley; 31. L-shaped limit plate; 312. Pulley; 313. Handrail; 32. Guide rail; 321. Lead screw; 322. Rocker arm; 323. Connecting block; 324. Slider; 33. Hydraulic rod; 34. Connecting column; 35. Mounting block; 36. Correction block;

[0026] 4. Arc-shaped protrusion; 41. Cavity; 42. Rotating shaft; 43. Lock; 431. Elastic element; 44. Knob;

[0027] 5. Arc-shaped groove; 51. Buckle. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0030] like Figures 1 to 3 As shown, a conveying device for elevator door production includes: a base 1, a conveying mechanism 12 disposed inside the top of the base 1, a platform 15 fixedly connected to the left side of the base 1, two sets of rails 151 disposed at the top of the platform 15, a transport trolley 3 in frictional contact with the left side of the base 1, an L-shaped limiting plate 31 fixedly connected to the top of the transport trolley 3, a guide rail 32 provided at the top edge of the transport trolley 3, a lead screw 321 passing through the inside of the guide rail 32, a rocker arm 322 fixedly connected to the left side of the lead screw 321 passing through the transport trolley 3, a connecting block 323 movably connected to the outside of the lead screw 321, a slider 324 fixedly connected to the top of the connecting block 323, two sets of hydraulic rods 33 fixedly connected to the top of the slider 324, a connecting column 34 fixedly connected between the two sets of hydraulic rods 33, an installation block 35 fixedly connected to the right telescopic end of the hydraulic rod 33, and a correction block 36 fixedly connected to the right side of the installation block 35.

[0031] In this implementation scheme: the conveying mechanism 12 can use chains, rollers or belts for transportation, which is the prior art in this field and will not be described again. The platform 15 is equipped with a track 151, and the pulley 312 ensures that the transport trolley 3 follows a specific route and will not deviate. The L-shaped limit plate 31 can limit the right side and rear end of the elevator door panel to ensure accurate initial positioning. The guide rail 32 has a guiding function, so that the slider 324 moves horizontally along the guide rail 32 through the screw 321 structure, so that the hydraulic rod 33 coincides with the diagonal of the elevator door. In addition, the correction block 36 clamps the corners of the elevator door to achieve bidirectional synchronous fixation, making the door panel more neatly placed and the transportation more stable.

[0032] like Figures 2 to 4As shown, the transport trolley 3 has pulleys 312 at the four corners of its bottom. The left side of the transport trolley 3 is fixedly connected to a handrail 313. The right side of the transport trolley 3 has two sets of arc-shaped protrusions 4. A cavity 41 is opened in the middle of the arc-shaped protrusions 4. A rotating shaft 42 passes through the cavity 41. A knob 44 is fixedly connected to the front end of the rotating shaft 42 through the transport trolley 3. Two sets of latches 43 are fixedly connected to the circumference of the rotating shaft 42. An elastic element 431 is fixedly connected to the top of the latches 43. Two sets of arc-shaped grooves 5 are opened on the right side of the base 1. A buckle 51 is fixedly connected inside the arc-shaped grooves 5.

[0033] In this implementation scheme: the pulley 312 assists the trolley 3 in sliding, the handrail 313 assists in pushing, the arc-shaped protrusion 4 fits into the arc-shaped groove 5, when the trolley 3 is pushed to the right, the inclined part on the right side of the latch 43 touches the buckle 51 and slides upward, and then returns to its original position under the pushing force of the elastic element 431, and engages with the buckle 51, ensuring the stability of the trolley 3, forming a fixed transfer line with the conveying mechanism 12, thereby ensuring the quality of elevator door delivery. The arc-shaped groove 5 can hide the buckle 51 inside, avoiding scratches.

[0034] like Figures 2 to 3 As shown, the right side of the correction block 36 is provided with a right-angle notch, and the right-angle notch is perpendicular to the right angle of the L-shaped limiting plate 31.

[0035] In this implementation scheme: the correction block 36 is made of silicone material to avoid damage to the elevator door. The two right-angled sides of the inner side of the correction block 36 are parallel to the two sides of the L-shaped limiting plate 31, and the right angle is opposite to the right angle of the L-shaped limiting plate 31, which can clamp and limit the front and right side of the elevator door.

[0036] like Figures 2 to 3 As shown, the connecting block 323 is threadedly connected to the lead screw 321, and the lead screw 321 and the slider 324 form a linkage structure through the connecting block 323.

[0037] In this implementation scheme: rotating the rocker arm 322 causes the lead screw 321 to rotate, which in turn drives the connecting block 323 to move in the left and right directions, and drives the top slider 324 to move synchronously, thereby achieving the purpose of moving the hydraulic rod 33.

[0038] like Figure 1 As shown, pulley 312 is slidably connected to track 151.

[0039] In this implementation scheme: the transport trolley 3 slides along the track 151 on the platform 15 via pulleys 312, ensuring that the transport trolley 3 follows a specific route and does not deviate.

[0040] like Figures 2 to 4As shown, the knob 44 forms a linkage structure with the lock 43 through the rotating shaft 42, the elastic element 431 is fixedly connected to the transport trolley 3, and the lock 43 is elastically connected to the transport trolley 3 through the elastic element 431.

[0041] In this implementation scheme: rotating the knob 44 causes the shaft 42 to rotate, which drives the latch 43 to move upward, thereby unlocking the latch 43. After being released, it returns to its original position under the pushing force of the elastic element 431, ready for the next use. The knob 44 does not have a self-locking function. When the right side of the transport trolley 3 is close to the left side of the base 1, the inclined part of the right side of the latch 43 touches the buckle 51 and slides upward. Under the pushing force of the elastic element 431, it returns to its original position and engages with the buckle 51. The knob 44 rotates accordingly, ensuring the purpose of automatic locking.

[0042] like Figures 2 to 4 As shown, the position of the arc-shaped protrusion 4 corresponds to the arc-shaped groove 5, the left end of the latch 43 is inclined, and the latch 43 is engaged with the buckle 51.

[0043] In this implementation scheme: the arc-shaped protrusion 4 and the arc-shaped groove 5 correspond to and overlap. The inclined part on the right side of the latch 43 receives the pushing force of the buckle 51 and automatically slides upward. When it reaches the top of the buckle 51, the pushing force disappears and it returns to its original position under the action of the elastic element 431, and engages with the buckle 51 to play a locking role.

[0044] like Figures 1 to 4 As shown, a set of support frames 13 is provided at the top of the base 1 and the platform 15. A crossbeam 14 is fixedly connected to the middle of the two sets of support frames 13. A motor 2 is installed at the center of the right side of the right support frame 13. A moving mechanism is provided inside the crossbeam 14. An electric push rod 21 is movably connected to the bottom of the crossbeam 14 through the moving mechanism. An electromagnetic chuck 22 is installed at the bottom of the electric push rod 21.

[0045] In this implementation scheme: two sets of support frames 13 fix the crossbeam 14 in the middle. The crossbeam 14 is equipped with a moving mechanism. The moving mechanism can use a threaded rod, gear, or other structure, which is existing technology in the field and will not be described again. It is driven by a motor 2 to move the electric push rod 21. The electric push rod 21 drives the electromagnetic chuck 22 to descend and attract the elevator door, and then rises and transfers it, thus realizing the elevator door conveying work.

[0046] Working Principle: When using this elevator door production conveyor, the worker first places the elevator door to be processed on the transport trolley 3 near the L-shaped limit plate 31. Then, according to the size of the elevator door, the rocker arm 322 is rotated, which drives the hydraulic rod 33 to move laterally through the screw 321 structure, so that its tilt angle coincides with the diagonal of the elevator door. Then, the hydraulic rod 33 is activated by the external power supply to control the correction block 36 to extend and clamp the corners of the elevator door. It can clamp in two directions at the same time, which not only makes the door panel more neatly placed, but also ensures the stability during transportation. Then, the handrail 313 pushes the transport trolley 3 upward along the track 151 to the platform 15, so that the transport trolley 3 maintains a specific route and does not deviate, until the right side of the transport trolley 3 is close to the left side of the base 1. At this time, the inclined part of the right side of the latch 43 touches the buckle 51 and slides upward. Under the pushing force of the elastic element 431, it returns to its original position and engages with the buckle 51, ensuring that the transport trolley 3 is secure. Stability is ensured by forming a fixed transfer line with the conveyor mechanism 12, thus guaranteeing the quality of elevator door delivery. The motor 2 is started by an external power source, causing the moving mechanism within the beam 14 to operate. This drives the electric push rod 21 to the center of the transport trolley 3. The electric push rod 21 then controls the electromagnetic chuck 22 to move downwards and hold the door panel in place. The reverse control then transports the elevator door to the conveyor mechanism 12 for further processing or transport. Once the elevator door on the transport trolley 3 has been transported, the knob 44 is turned to the left to disengage the latch 43 from the buckle 51, unlocking the trolley 3 and allowing it to return for the next transport operation. The hydraulic rod model is M0B50. A pressure transmitter is installed in the hydraulic circuit (such as the cylinder inlet or pipeline). When the correction mechanism clamps the elevator door, the hydraulic rod system pressure rises sharply. A stop signal is triggered by detecting the pressure change, stopping the hydraulic rod from moving forward. The motor model is YS56-4. These models are for reference only; any model that meets the operational requirements is acceptable.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conveying device for elevator door production, characterized in that include: A base (1) has a conveying mechanism (12) inside its top end. A platform (15) is fixedly connected to the left side of the base (1). Two sets of tracks (151) are provided at the top of the platform (15). A transport trolley (3) is in frictional contact with the left side of the base (1). An L-shaped limiting plate (31) is fixedly connected to the top of the transport trolley (3). A guide rail (32) is provided at the top edge of the transport trolley (3). A lead screw (321) passes through the inside of the guide rail (32). A rocker arm (322) is fixedly connected to the left side of the transport trolley (3). A connecting block (323) is movably connected to the outside of the lead screw (321). A slider (324) is fixedly connected to the top of the connecting block (323). Two sets of hydraulic rods (33) are fixedly connected to the top of the slider (324). A connecting column (34) is fixedly connected in the middle of the two sets of hydraulic rods (33). An installation block (35) is fixedly connected to the right telescopic end of the hydraulic rod (33). A correction block (36) is fixedly connected to the right side of the installation block (35).

2. The conveying device for elevator door production according to claim 1, characterized in that, The transport trolley (3) is provided with pulleys (312) at the four corners of the bottom. The transport trolley (3) is fixedly connected with a handrail (313) on the left side. The transport trolley (3) is provided with two sets of arc-shaped protrusions (4) on the right side. A cavity (41) is opened in the middle of the arc-shaped protrusions (4). A rotating shaft (42) is inserted inside the cavity (41). A knob (44) is fixedly connected to the front end of the rotating shaft (42) through the transport trolley (3). Two sets of latches (43) are fixedly connected to the circumference of the rotating shaft (42). An elastic element (431) is fixedly connected to the top of the latches (43). Two sets of arc-shaped grooves (5) are opened on the right side of the base (1). A buckle (51) is fixedly connected inside the arc-shaped grooves (5).

3. The conveying device for elevator door production according to claim 1, characterized in that, The right side of the correction block (36) is provided with a right-angle notch, and the right-angle notch is perpendicular to the right angle of the L-shaped limiting plate (31).

4. The conveying device for elevator door production according to claim 1, characterized in that, The connecting block (323) is threadedly connected to the lead screw (321), and the lead screw (321) and the slider (324) form a linkage structure through the connecting block (323).

5. A conveying device for elevator door production according to claim 2, characterized in that, The pulley (312) is slidably connected to the track (151).

6. The conveying device for elevator door production according to claim 2, characterized in that, The knob (44) is linked to the latch (43) via the pivot (42), the elastic element (431) is fixedly connected to the transport trolley (3), and the latch (43) is elastically connected to the transport trolley (3) via the elastic element (431).

7. The conveying device for elevator door production according to claim 2, characterized in that, The position of the arc-shaped protrusion (4) corresponds to the arc-shaped groove (5), the left end of the latch (43) is inclined, and the latch (43) engages with the buckle (51).

8. The conveying device for elevator door production according to claim 1, characterized in that, The base (1) and the platform (15) are each provided with a set of support frames (13) at their top. A crossbeam (14) is fixedly connected to the middle of the two sets of support frames (13). A motor (2) is installed at the center of the right side of the support frame (13). A moving mechanism is provided inside the crossbeam (14). An electric push rod (21) is movably connected to the bottom of the crossbeam (14) through the moving mechanism. An electromagnetic chuck (22) is installed at the bottom of the electric push rod (21).

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