An escalator comb-tooth pedal assembly device

Abstract

This invention provides an escalator comb plate assembly device for the field of assembly machinery, including a positioning mechanism and a feeding mechanism. The positioning mechanism is located below a transmission mechanism, which is used to transport the escalator treads. The feeding mechanism is fixed above the transmission mechanism via an XZ-axis linear module and is used to provide comb plates for the escalators and assemble the escalators and comb plates with screws. This application achieves automated assembly of the comb plates and escalators through the cooperation of the positioning mechanism and the feeding mechanism. It can realize automatic positioning and automatic locking during assembly, resulting in high assembly efficiency, market potential, and suitability for widespread application.

Description

Technical Field

[0001] This application relates to the field of assembly machinery, and in particular to an escalator comb tooth pedal assembly device. Background Technology

[0002] The comb plate is a component located at both ends of the entrance / exit, designed to facilitate passenger transition and engage with the steps, treads, or moving walkway belts. The ends of the comb plate are often machined into rounded comb teeth, and the shape should minimize the risk of foot pinching when interacting with the steps, treads, or belts. The support structure should be adjustable to ensure proper engagement and appropriate rigidity. Because the comb plate is susceptible to damage from impacts by foreign objects, separate comb plates are often assembled on elevator treads for economical replacement. However, due to the numerous connection points between the separate comb plate and the elevator treads, manual assembly is inefficient. Therefore, a comb plate assembly device for escalators is proposed to address these issues. Summary of the Invention

[0003] The purpose of this application is to address the technical problem of low assembly efficiency caused by the need to install multiple comb plates one by one when assembling existing escalators. Compared with the prior art, this application provides an escalator comb plate assembly device, which includes a positioning mechanism and a feeding mechanism. The positioning mechanism is located below the transmission mechanism, which is used to transport the escalator. The feeding mechanism is fixed above the transmission mechanism by an XZ axis linear module. The feeding mechanism is used to provide comb plates for the escalator and assemble the escalator and comb plates with screws.

[0004] Furthermore, the pedal is equipped with multiple sets of comb plates, one side of the pedal is provided with a lower mounting groove, one side of the comb plate is provided with an upper mounting groove that mates with the lower mounting groove, the other side of the comb plate is provided with comb teeth, and screw holes are provided on the opposite side of the comb plate and the pedal.

[0005] Furthermore, the feeding mechanism includes a feeding pedal, a pneumatic gripper on one side of the feeding pedal for gripping the comb teeth, and a chuck on the other side of the feeding pedal for gripping the screw holes of the comb tooth plate.

[0006] Furthermore, the clamps are arranged in pairs facing each other as a group, and the feeding pedal is provided with a main slide. The main slide moves back and forth in the vertical direction. The upper and lower sides of the main slide are symmetrically connected with spacing adjustment plates. The two sets of spacing adjustment plates move back and forth in the horizontal direction. The two clamps in the same group are respectively fixed on the spacing adjustment plates on the upper and lower sides of the main slide.

[0007] Furthermore, the top of the main slide is also connected to a secondary slide that slides back and forth in the vertical direction, and the secondary slide is equipped with an electric screwdriver corresponding to the chuck.

[0008] The two clamps in the same group are provided with a through slot on the opposite side to facilitate the passage of the electric screwdriver output end.

[0009] Furthermore, the feeding pedal is also provided with a feeding groove, which corresponds to the chuck. The chuck has a guide groove on one side of the bottom of the through groove and a limiting groove on the other side of the bottom of the through groove. The guide groove and the feeding groove are both straight groove structures with cross-sections corresponding to the screw cross-sections. The limiting groove is an annular groove structure with cross-sections corresponding to the screw cross-sections. The input end of the guide groove is set opposite to the output end of the feeding groove.

[0010] Furthermore, a baffle is provided on the side of the main slide opposite to the feeding trough. The bottom of the baffle is provided with a feeding notch corresponding to the output end of the feeding trough. The feeding trough is filled with multiple screws, and the screws in the feeding trough are pushed close to the baffle by a spring structure.

[0011] Furthermore, when the two sets of clamps are brought close to each other to the minimum distance, the bottom contours of the two sets of clamps are smaller than the contours of the screw holes.

[0012] Furthermore, the positioning mechanism includes a positioning pedal fixed on the frame of the transmission mechanism, the positioning pedal being slidably connected to a lifting plate in the vertical direction, and the lifting plate being fixed with positioning pins corresponding to screw holes.

[0013] Furthermore, the transmission mechanism is provided with multiple sets of conveyor belts, the screw holes of the pedal and the comb plate are all located in the gap between adjacent conveyor belts, and the top of the positioning pin is provided with a magnetic block.

[0014] Compared to existing technologies, the advantages of this application are:

[0015] This application achieves automated assembly of comb plates and pedals through the cooperation of positioning and feeding mechanisms. It can realize automatic positioning and automatic locking during assembly, resulting in high assembly efficiency, market potential, and suitability for widespread application.

[0016] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 This is a schematic diagram of the structure of the pedal and comb plate proposed in this application;

[0019] Figure 2 This is a schematic diagram of the structure when the feeding mechanism proposed in this application is not aligned with the positioning mechanism;

[0020] Figure 3 This is a schematic diagram of the structure when the feeding mechanism and the positioning mechanism proposed in this application are engaged;

[0021] Figure 4 This is a front structural diagram of the feeding mechanism proposed in this application;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the feeding mechanism proposed in this application;

[0023] Figure 6 This is a partial structural diagram of the positioning mechanism proposed in this application;

[0024] Figure 7 This is a schematic diagram of the spacing adjustment plate and clamp proposed in this application;

[0025] Figure 8 This is a schematic diagram of the chuck structure proposed in this application;

[0026] Figure 9 This is a schematic diagram showing the usage state of the chuck proposed in this application;

[0027] Figure 10 This is a structural schematic diagram of the main slide and the loading pedal proposed in this application;

[0028] Figure 11 This is a schematic cross-sectional view of the feeding trough proposed in this application.

[0029] Figure 12 This is a schematic diagram showing the state of the feeding mechanism in this application when it clamps the comb plate to the top of the positioning mechanism.

[0030] Figure 13 This is a schematic diagram showing the state of the feeding mechanism when the comb plate is unloaded to the top of the positioning mechanism as proposed in this application;

[0031] Figure 14 This is a schematic diagram showing the state of the feeding mechanism in this application when it is conveying screws.

[0032] Explanation of the labels in the diagram:

[0033] 1. Pedal, 11. Lower assembly slot, 2. Comb plate, 21. Upper assembly slot, 22. Comb teeth, 3. Screw, 4. Transmission mechanism, 5. Positioning mechanism, 51. Positioning pedal, 52. Lifting plate, 521. Positioning pin, 521. Feeding mechanism, 6. Feeding pedal, 61. Pneumatic gripper, 611. Feeding trough, 612. Main slide, 621. Baffle, 622. Feeding notch, 622. Secondary slide, 63. Electric screwdriver, 631. Spacing adjustment plate, 64. Chuck, 7. Through slot, 71. Limiting slot, 72. Guide trough, 73. Detailed Implementation

[0034] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0035] The escalator comb plate assembly device of the present invention is mainly used to address the technical problem of low assembly efficiency when assembling multiple comb plates 2 on the existing pedal 1, which requires installation one by one.

[0036] Please refer to the following first. Figure 1 - Figure 14 As shown, Figure 1 The diagram shows the structure of the pedal and the comb plate. The pedal 1 is equipped with multiple sets of comb plates 2. One side of the pedal 1 is provided with a lower mounting groove 11. One side of the comb plate 2 is provided with an upper mounting groove 21 that matches the lower mounting groove 11. The other side of the comb plate 2 is provided with comb teeth 22. Screw holes are provided on the opposite side of the comb plate 2 and the pedal 1. All of the above are existing technologies and will not be described in detail here.

[0037] An escalator comb plate assembly device includes a positioning mechanism 5 and a feeding mechanism 6. The positioning mechanism 5 is located below the transmission mechanism 4, which is used to transport the plate 1. The feeding mechanism 6 is fixed above the transmission mechanism 4 by an XZ axis linear module. The feeding mechanism 6 is used to provide the plate 2 to the plate 1 and assemble the plate 1 and the plate 2 by screws 3.

[0038] Please see Figure 4 - Figure 6 The feeding mechanism 6 includes a feeding pedal 61, a pneumatic gripper 611 on one side of the feeding pedal 61 for gripping the comb teeth 22, and a chuck 7 on the other side of the feeding pedal 61 for gripping the screw holes of the comb tooth plate 2.

[0039] For details, please refer to Figure 7 - Figure 9The chucks 7 are paired up to form a group. The feeding pedal 61 is equipped with a main slide 62. The main slide 62 is driven by a cylinder to reciprocate in the vertical direction. The upper and lower sides of the main slide 62 are symmetrically connected with spacing adjustment plates 64. The two sets of spacing adjustment plates 64 reciprocate in the horizontal direction. The two sets of spacing adjustment plates 64 are driven by a cylinder to perform relative displacement. The two chucks 7 in the same group are respectively fixed on the spacing adjustment plates 64 on the upper and lower sides of the main slide 62.

[0040] When the two sets of chucks 7 are close to each other to the minimum distance, the bottom contour of the two sets of chucks 7 is smaller than the contour of the screw hole.

[0041] Please see Figure 6 The positioning mechanism 5 includes a positioning pedal 51 fixed on the frame of the transmission mechanism 4. The positioning pedal 51 is slidably connected to a lifting plate 52 in the vertical direction. The lifting plate 52 is fixed with a positioning pin 521 corresponding to the screw hole. It should be noted that the downward movement of the lifting plate 52 is driven by the Z-axis linear module, and the upward movement of the lifting plate 52 is driven by the spring force. A distance sensor (not shown in the figure) for detecting the displacement distance of the lifting plate 52 is also provided between the lifting plate 52 and the positioning pedal 51.

[0042] Please see Figure 2 - Figure 3 To facilitate the upward movement of the positioning pin 521, the transmission mechanism 4 is equipped with multiple sets of conveyor belts. The screw holes of the pedal 1 and the comb plate 2 are all located between adjacent conveyor belts. A magnetic block is provided at the top of the positioning pin 521.

[0043] Please see Figure 12 When the feeding mechanism 6 needs to clamp multiple sets of comb plates 2, the XZ axis linear module drives the feeding mechanism 6 to move above the comb plate 2 and down. By using the relative proximity of the spacing adjustment plate 64 to reduce the bottom profile of the two sets of chucks 7, and under the drive of the main slide 62, they move down and insert into the screw holes of the comb plate 2. At this time, the two sets of chucks 7 move away from each other, and with the tensioning of the pneumatic gripper 611, the comb teeth 22 can be clamped and moved simultaneously, while keeping the screw holes of the comb plate 2 and the positioning pin 521 coaxially set.

[0044] When the XZ axis linear module drives the feeding mechanism 6 and the comb plate 2 held by the feeding mechanism 6 to move above the transmission mechanism 4, the bottom surface of the comb plate 2 is kept flush with the bottom surface of the pedal 1 conveyed by the transmission mechanism 4. In order to maintain the left and right position of the pedal 1 conveyed by the transmission mechanism 4, a baffle (not shown in the figure) is also provided on the transmission mechanism 4. Since the bottom surface of the comb plate 2 is flush with the bottom surface of the pedal 1, the left and right position of the pedal 1 is fixed. Therefore, when the pedal 1 is conveyed to the comb plate 2, the lower assembly groove 11 and the upper assembly groove 21 are aligned. At this time, the screw holes of the pedal 1 and the comb plate 2 coincide. The positioning pin 521 moves upward through the screw hole of the pedal 1 by means of the spring force. Since the screw hole of the comb plate 2 and the positioning pin 521 are coaxially set, after the positioning pin 521 passes through the screw hole of the pedal 1, the positioning action before the pedal 1 and the comb plate 2 are assembled can be completed, which effectively improves the assembly accuracy.

[0045] Please see Figure 4 The top of the main slide 62 is also connected to a secondary slide 63 that slides back and forth in the vertical direction. The secondary slide 63 is provided with an electric screwdriver 631 corresponding to the chuck 7. On the opposite side of the two chucks 7 in the same group, there is a through groove 71 to facilitate the passage of the output end of the electric screwdriver 631.

[0046] Please see Figure 13 When screws 3 need to be supplied to the electric screwdriver 631, the chuck 7 moves closer and disengages from the screw hole of the comb plate 2 by the upward movement of the main slide 62. It should be noted that during the upward movement of the chuck 7, the positioning pin 521 automatically moves upward synchronously with the chuck 7 using the spring force, so that the positioning pin 521 passes through the screw holes of the pedal 1 and the comb plate 2 at the same time. In conjunction with the action of the pneumatic gripper 611 to clamp the comb teeth 22, it continues to provide stable positioning and clamping for the comb plate 2 and the pedal 1.

[0047] Please see Figure 10 - Figure 11 The feeding pedal 61 is also provided with a feeding groove 612, which corresponds to the chuck 7. The chuck 7 has a guide groove 73 on one side of the bottom of the through groove 71, and a limiting groove 72 on the other side of the bottom of the through groove 71. The guide groove 73 and the feeding groove 612 are both straight groove structures with cross-sections corresponding to the cross-sections of the screw 3. The limiting groove 72 is an annular groove structure with cross-sections corresponding to the cross-sections of the screw 3. The input end of the guide groove 73 is set opposite to the output end of the feeding groove 612.

[0048] It should be noted that in this embodiment, a baffle 621 is also provided on the side of the main slide 62 opposite to the feeding trough 612. The bottom of the baffle 621 is provided with a feeding notch 622 corresponding to the output end of the feeding trough 612. The feeding trough 612 is filled with a plurality of screws 3. The screws 3 in the feeding trough 612 are pushed close to the baffle 621 by a spring structure.

[0049] Please see Figure 11 and Figure 14 When a screw 3 needs to be supplied to the electric screwdriver 631, the main slide 62 moves the chuck 7 upward. When the chuck 7 disengages from the screw hole of the comb plate 2, the two sets of chucks 7 move away from each other, so that the limiting groove 72 and the guide groove 73 maintain the groove width corresponding to the feeding groove 612. As the main slide 62 moves upward, it simultaneously moves the baffle 621 upward. When the feeding notch 622 of the baffle 621 coincides with the feeding groove 612, the screw 3 in the feeding groove 612 is pushed through the guide groove 73 by the pushing force of the spring structure. Inside the limiting groove 72, the chuck 7 is driven to move downward again by the main slide 62. During the downward movement, the baffle 621 closes the port of the feeding groove 612, so that the screw 3 in the feeding groove 612 no longer feeds out. At the same time, the auxiliary slide 63 drives the electric screwdriver 631 to move downward. When the output end of the electric screwdriver 631 reaches the top of the screw 3, the electric screwdriver 631 starts at low speed and maintains the downward movement of the electric screwdriver 631, so that the output end of the electric screwdriver 631 can reach the engagement state with the cross groove on the top of the screw 3 under low speed rotation.

[0050] It should be noted that after screw 3 enters the limiting groove 72, the bottom end of screw 3 is lower than the bottom end of chuck 7. Therefore, when chuck 7 moves down to the top of the screw hole of comb plate 2, the two sets of chuck 7 cannot pass through the screw hole due to their outward expansion. The exposed bottom end of screw 3 just fits into the screw hole of comb plate 2. With the low-speed rotation of electric screwdriver 631, the screw 3 is initially locked in the screw hole of comb plate 2. At this time, the chuck 7 is moved away from the outward expansion, so that screw 3 is released from the restriction of limiting groove 72. Under the premise that the downward movement of main slide 62 is restricted, the auxiliary slide 63 drives electric screwdriver 631 to continue to move down. With the rapid start of electric screwdriver 631, screw 3 is screwed into the screw holes of comb plate 2 and pedal 1 in sequence, completing the assembly and locking action.

[0051] Because the top of the positioning pin 521 is equipped with a magnetic block, when the bottom of the screw 3 moves down to the screw hole of the comb plate 2, the magnetic force of the magnetic block can be used to provide an attraction and guidance for the screw 3, maintaining the alignment accuracy of the screw 3 as it moves down. At the same time, during the screw 3's screwing process, the positioning pin 521 is continuously pressed down. By detecting the downward movement of the positioning pin 521 through the distance sensor, the screw 3's screwing amount can be detected. When the screw 3's screwing amount reaches the design value, the distance sensor feeds back the signal to the electric screwdriver 631 to stop its rotation. At this time, the positioning mechanism 5 and the feeding mechanism 6 are reset in sequence. The assembled comb plate 2 and pedal 1 are then transported forward by the transmission mechanism 4, and the positioning mechanism 5 and the feeding mechanism 6 then perform a cycle operation.

[0052] This application achieves automated assembly of comb plate 2 and pedal 1 through the cooperation of positioning mechanism 5 and feeding mechanism 6. It can realize automatic positioning and automatic locking of assembly, with high assembly efficiency, market prospects and suitable for promotion and application.

[0053] The above description is only the best implementation method adopted in this application in combination with current practical needs, but the scope of protection of this application is not limited thereto.

Claims

1. An escalator comb-tooth tread assembly device, comprising a positioning mechanism (5) and a feeding mechanism (6), characterized in that, The positioning mechanism (5) is located below the transmission mechanism (4). The transmission mechanism (4) is used to transport the pedal (1). The feeding mechanism (6) is fixed above the transmission mechanism (4) via an XZ axis linear module. The feeding mechanism (6) is used to provide a comb plate (2) for the pedal (1) and to assemble the pedal (1) and the comb plate (2) with screws (3). The pedal (1) is equipped with multiple sets of comb plates (2). One side of the pedal (1) is provided with a lower mounting groove (11). One side of the comb plate (2) is provided with an upper mounting groove (21) that matches the lower mounting groove (11). The other side of the comb plate (2) is provided with comb teeth (22). The comb plate (2) and the pedal (1) are both provided with screw holes on opposite sides. The feeding mechanism (6) includes a feeding pedal (61), a pneumatic gripper (611) is provided on one side of the feeding pedal (61), the pneumatic gripper (611) is used to clamp the comb teeth (22), and a chuck (7) is provided on the other side of the feeding pedal (61), the chuck (7) is used to clamp the screw holes of the comb tooth plate (2). The clamps (7) are paired up to form a group. The feeding pedal (61) is provided with a main slide (62). The main slide (62) moves back and forth in the vertical direction. The upper and lower sides of the main slide (62) are symmetrically connected with spacing adjustment plates (64). The two groups of spacing adjustment plates (64) move back and forth in the horizontal direction. The two clamps (7) in the same group are respectively fixed on the spacing adjustment plates (64) on the upper and lower sides of the main slide (62). The top of the main slide (62) is also connected to a secondary slide (63) that slides back and forth in the vertical direction. The secondary slide (63) is provided with an electric screwdriver (631) corresponding to the chuck (7). The two clamps (7) in the same group are provided with a through slot (71) on the opposite side to facilitate the passage of the output end of the electric screwdriver (631). The feeding pedal (61) is also provided with a feeding groove (612), which corresponds to the chuck (7). The chuck (7) has a guide groove (73) on one side of the bottom of the through groove (71) and a limiting groove (72) on the other side of the bottom of the through groove (71). The guide groove (73) and the feeding groove (612) are both straight groove structures with cross-sections corresponding to the cross-sections of the screw (3). The limiting groove (72) is an annular groove structure with cross-sections corresponding to the cross-sections of the screw (3). The input end of the guide groove (73) is set opposite to the output end of the feeding groove (612).

2. The escalator comb-tooth pedal assembly device according to claim 1, characterized in that, The main slide (62) is also provided with a baffle (621) on the side opposite to the feeding trough (612). The bottom of the baffle (621) is provided with a feeding notch (622) corresponding to the output end of the feeding trough (612). The feeding trough (612) is filled with a plurality of screws (3). The screws (3) in the feeding trough (612) are pushed close to the baffle (621) by a spring structure.

3. The escalator comb-tooth pedal assembly device according to claim 2, characterized in that, When the two sets of clamps (7) are brought close to each other to the minimum distance, the bottom contour of the two sets of clamps (7) is smaller than the screw hole contour.

4. The escalator comb-tooth pedal assembly device according to claim 3, characterized in that, The positioning mechanism (5) includes a positioning pedal (51) fixed on the frame of the transmission mechanism (4). The positioning pedal (51) is connected to a lifting plate (52) that slides back and forth in the vertical direction. The lifting plate (52) is fixed with a positioning pin (521) corresponding to the screw hole.

5. The escalator comb-tooth pedal assembly device according to claim 4, characterized in that, The transmission mechanism (4) is provided with multiple sets of conveyor belts. The screw holes of the pedal (1) and the comb plate (2) are all located between adjacent conveyor belts. The top of the positioning pin (521) is provided with a magnetic block.

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