Lifting mechanism for recovering carrying disc

Abstract

The lifting mechanism comprises a lifting platform provided with a horizontal conveying line and supports located on the left side and the right side of the lifting platform, a transmission system is arranged in the supports and comprises a driving chain wheel driven by a motor and a transmission chain matched with the driving chain wheel, one end of the transmission chain is connected with the lifting platform, and the other end of the transmission chain is connected with the lifting platform. And the other end is connected with the counterweight. After the robot takes away the household appliances from the carrying disc, the motor drives the transmission chain to pull the lifting platform to descend, so that the horizontal conveying line is flush with the no-load disc conveying line, the horizontal conveying line conveys the no-load disc to the no-load disc conveying line, and the no-load disc conveying line conveys the no-load disc back to the head end of the household appliance conveying line to be reused. According to the design, the no-load disc transferring mechanism is provided for transferring the no-load disc on the conveying line for conveying household appliances to the no-load disc conveying line, and the no-load disc recycling efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the field of household appliance production and detection, and particularly to a conveying device in the production and detection processes of household appliances. Background Art

[0002] Large household appliances, such as washing machines, are placed on a carrier tray during production or detection, and the carrier tray is placed on a conveyor line. Under the conveyance of the conveyor line, the household appliance reaches the end of the conveyor line. A robot beside the conveyor line clamps the household appliance and transfers it to other workstations, leaving an empty carrier tray on the conveyor line. This empty carrier tray needs to be recycled to the head end of the conveyor line for reuse. Therefore, an additional empty carrier tray conveyor line needs to be arranged below or beside the conveyor line for conveying household appliances to recycle the empty carrier tray. Summary of the Utility Model

[0003] The technical problem solved by the utility model: Provide an empty carrier tray transfer mechanism for transferring the empty carrier tray on the conveyor line for conveying household appliances to the empty carrier tray conveyor line.

[0004] To solve the above technical problem, the utility model provides the following technical solution: A lifting mechanism for recycling a carrier tray, including a lifting platform provided with a horizontal conveyor line, a first bracket and a second bracket located on the left and right sides of the lifting platform. A transmission system is provided in the first bracket and the second bracket. The transmission system includes a first driving sprocket driven by a motor, a first transmission chain engaged with the first driving sprocket. One end of the first transmission chain is connected to the left end of the lifting platform, and the other end of the first transmission chain is connected to a counterweight. The first driving sprocket, the first transmission chain and the counterweight are all located in the first bracket. The first driving sprocket is coaxially provided with a second driving sprocket, and the second driving sprocket is engaged with a second transmission chain. One end of the second transmission chain is connected to the counterweight, and the other end of the second transmission chain extends into the second bracket through a plurality of intermediate sprockets and is connected to the right end of the lifting platform.

[0005] The empty tray conveyor line is located below the household appliance conveyor line. The lifting mechanism of the present utility model is located at the end of the household appliance conveyor line, that is, the head end of the empty tray conveyor line. The horizontal conveyor line of the lifting mechanism operates forward, and the household appliance conveyor line conveys the household appliances to the horizontal conveyor line, and then the horizontal conveyor line stops operating. After the robot takes the household appliances from the tray, the motor of the drive system operates to drive the first driving sprocket and the second driving sprocket. The first driving sprocket drives the first transmission chain, and the first transmission chain pulls the left end of the lifting platform to descend. The second transmission chain pulls the right end of the lifting platform to descend. At the same time, the counterweight connected to the first transmission chain and the second transmission chain rises. The horizontal conveyor line on the lifting platform is flush with the empty tray conveyor line, and the horizontal conveyor line operates in reverse to convey the empty tray to the empty tray conveyor line. The empty tray conveyor line conveys the empty tray back to the head end of the household appliance conveyor line for reuse. After the horizontal conveyor line conveys the empty tray to the empty tray conveyor line, the lifting platform rises and resets.

[0006] The present utility model provides an empty tray transfer mechanism for transferring the empty trays on the conveyor line for conveying household appliances to the empty tray conveyor line, which is beneficial to improving the efficiency of empty tray recycling.

[0007] The transfer sprockets include a first transfer sprocket, a second transfer sprocket, and a third transfer sprocket. The first transfer sprocket is arranged at the bottom of the first bracket, the second transfer sprocket is arranged at the bottom of the second bracket, and the third transfer sprocket is arranged at the top of the second bracket. The other end of the second transmission chain is connected to the right end of the lifting platform after passing through the first transfer sprocket, the second transfer sprocket, and the third transfer sprocket in sequence. In the second bracket, the second transmission chain passing through the second transfer sprocket bypasses the third transfer sprocket upward and then is connected to the right end of the lifting platform downward. In this way, when the first transmission chain and the second transmission chain are driven simultaneously, the first transmission chain and the second transmission chain can lift and lower the lifting platform simultaneously.

[0008] A first through hole is formed in the bottom side wall of the first bracket, and a corresponding second through hole is formed in the bottom side wall of the second bracket. A channel-shaped member is connected between the bottom side wall of the first bracket and the bottom side wall of the second bracket. The channel-shaped member communicates the first through hole and the second through hole, and the second transmission chain enters the second bracket through the first through hole, the channel-shaped member, and the second through hole. The second transmission chain is located in the channel-shaped member, and the channel-shaped member has a limiting and protecting effect on the second transmission chain.

[0009] A vertical plate is provided in the first bracket. A transmission shaft is installed on the vertical plate and is connected to the motor. The motor is installed on the outer side wall of the first bracket. The first driving sprocket and the second driving sprocket are installed on the transmission shaft. A first vertical guide rail and a second vertical guide rail are provided on the vertical plate. A first slider cooperating with the first vertical guide rail is provided at the left end of the lifting platform, and a second slider cooperating with the second vertical guide rail is provided on the counterweight. The left end of the lifting platform ascends and descends along the first vertical guide rail, and the counterweight ascends and descends along the second vertical guide rail.

[0010] A sensor fitting is provided at the right end of the lifting platform. A sensor mounting bracket is provided in the second bracket, and a high-level sensor and a low-level sensor are mounted on the sensor mounting bracket. When the lifting platform descends, the sensor fitting triggers the low-level sensor and the motor stops. At this time, the horizontal conveyor line on the lifting platform is flush with the empty tray conveyor line. When the lifting platform ascends, the sensor fitting triggers the high-level sensor and the motor stops. At this time, the horizontal conveyor line on the lifting platform is flush with the household appliance conveyor line.

[0011] The lifting platform includes a pair of cross beams and a pair of longitudinal beams connecting the pair of cross beams. The left ends of the pair of cross beams extend into the first bracket, and the right ends of the pair of cross beams extend into the second bracket. The horizontal conveyor line is located between the pair of longitudinal beams. Brief Description of the Drawings

[0012] The following further describes the present utility model with reference to the drawings:

[0013] Figure 1 It is a schematic diagram of the lifting mechanism for recycling trays;

[0014] Figure 2 is Figure 1 A schematic diagram of the lifting mechanism for recycling trays as observed from the right side in

[0015] Figure 3 is Figure 2 A schematic diagram of the lifting mechanism for recycling trays as observed from the right side in

[0016] Figure 4 is Figure 1 A schematic diagram of the lifting mechanism for recycling trays as observed from the bottom in

[0017] Figure 5 It is the front view of the lifting mechanism for recycling trays;

[0018] Figure 6 is Figure 5 The top view of

[0019] Symbol description in the figure:

[0020] 10. First bracket; 11. Channel-shaped part; 12. Vertical plate; 13. First vertical guide rail; 14. Second vertical guide rail;

[0021] 20. Second bracket; 21. Sensor fitting; 22. Sensor mounting bracket; 23. High-level sensor; 24. Low-level sensor;

[0022] 30. Lifting platform; 301. Left end of the lifting platform; 302. Right end of the lifting platform; 31. Cross beam; 32. Longitudinal beam;

[0023] 40. Horizontal conveyor; 41. Conveyor belt; 42. Flat plate; 43. Motor base; 44. Roller shaft;

[0024] 50. Motor; 51. First driving sprocket; 52. Second driving sprocket; 531. First intermediate sprocket; 532. Second intermediate sprocket; 533. Third intermediate sprocket; 54. Transmission shaft; 55. Counterweight; 56. Connecting piece. Detailed implementation manner

[0025] Combined with Figure 1 、 Figure 2 A lifting mechanism for recycling a carrier tray, comprising a lifting platform 30 provided with a horizontal conveyor 40, a first bracket 10 and a second bracket 20 located on the left and right sides of the lifting platform. A transmission system is provided in the first bracket and the second bracket. The transmission system includes a first driving sprocket 51 driven by a motor 50, and a first transmission chain engaged with the first driving sprocket. One end of the first transmission chain is connected to the left end 301 of the lifting platform, and the other end of the first transmission chain is connected to the counterweight 55. The first driving sprocket, the first transmission chain and the counterweight are all located in the first bracket. The first driving sprocket 51 is coaxially provided with a second driving sprocket 52, and the second driving sprocket is engaged with a second transmission chain. One end of the second transmission chain is connected to the counterweight, and the other end of the second transmission chain extends into the second bracket 20 through a plurality of intermediate sprockets and is connected to the right end 302 of the lifting platform.

[0026] Connecting pieces 56 for connecting with the transmission chain are provided at the left end 301 of the lifting platform, the right end 302 of the lifting platform, and the counterweight 55.

[0027] Combined with Figure 1 、 Figure 2 、 Figure 4 The intermediate sprockets include a first intermediate sprocket 531, a second intermediate sprocket 532, and a third intermediate sprocket 533. The first intermediate sprocket is arranged at the bottom of the first bracket 10, the second intermediate sprocket is arranged at the bottom of the second bracket 20, and the third intermediate sprocket is arranged at the top of the second bracket. The other end of the second transmission chain is connected to the right end 302 of the lifting platform after passing through the first intermediate sprocket, the second intermediate sprocket, and the third intermediate sprocket in sequence.

[0028] Refer to Figure 1 、 Figure 4 A first through hole is formed in the bottom side wall of the first bracket 10, a corresponding second through hole is formed in the bottom side wall of the second bracket 20, and a channel-shaped member 11 is connected between the bottom side wall of the first bracket and the bottom side wall of the second bracket. The channel-shaped member communicates with the first through hole and the second through hole, and the second transmission chain enters the second bracket through the first through hole, the channel-shaped member, and the second through hole.

[0029] Refer to Figure 2 、 Figure 3, a vertical plate 12 is provided in the first support 10. A transmission shaft 54 is installed on the vertical plate. The transmission shaft is connected to a motor 50, and the motor is installed on the outer side wall of the first support. The first driving sprocket 51 and the second driving sprocket 52 are installed on the transmission shaft. The vertical plate is provided with a first vertical guide rail 13 and a second vertical guide rail 14. A first slider that cooperates with the first vertical guide rail is provided at the left end 301 of the lifting platform, and a second slider that cooperates with the second vertical guide rail is provided on the counterweight 55.

[0030] As Figure 1 , a sensor fitting 21 is provided at the right end 302 of the lifting platform. A sensor mounting bracket 22 is provided in the second support 20. A high-position sensor 23 and a low-position sensor 24 are installed on the sensor mounting bracket.

[0031] Combined with Figure 1 , Figure 5 , Figure 6 , the lifting platform 30 includes a pair of cross beams 31 and a pair of longitudinal beams 32 connecting the pair of cross beams. The left ends of the pair of cross beams extend into the first support 10, and the right ends of the pair of cross beams extend into the second support 20. The horizontal conveyor line 40 is located between the pair of longitudinal beams. The horizontal conveyor line 40 includes a pair of roller brackets, rollers installed on the roller brackets, a conveyor belt 41 fitted on the rollers. A flat plate 42 is provided between the pair of conveyor belts. The flat plate is lower than the pair of conveyor belts, and both sides of the flat plate are connected to the roller brackets. The bottom of the roller bracket is connected with a motor base 43, and a motor is installed on the motor base. The motor drives the roller shaft, and the roller shaft drives the rollers to rotate, and then the conveyor belt 41 is driven.

[0032] The empty tray conveyor line is located below the household appliance conveyor line. The lifting mechanism of the present utility model is located at the end of the household appliance conveyor line, that is, the head end of the empty tray conveyor line. The household appliance conveyor line conveys household appliances to the end of the household appliance conveyor line. Part of the household appliances enter the horizontal conveyor line 40. The tray carrying the household appliances blocks the photoelectric sensors on both sides of the horizontal conveyor line 40. The photoelectric sensors sense and feedback to the main control unit. Under the control of the main control unit, the motor of the horizontal conveyor line 40 rotates forward, so that the household appliances are completely conveyed onto the horizontal conveyor line 40. The tray carrying the household appliances no longer blocks the photoelectric sensors on both sides of the horizontal conveyor line, and the horizontal conveyor line 40 stops operating. Under the control of the main control unit, the robot takes away the household appliances, leaving an empty tray on the horizontal conveyor line 40. The motor 50 of the transmission system operates, driving the first driving sprocket 51 and the second driving sprocket 52. The first driving sprocket drives the first transmission chain, and the first transmission chain pulls the left end 301 of the lifting platform to descend. The second transmission chain pulls the right end 302 of the lifting platform to descend. At the same time, the counterweight 55 connected to the first transmission chain and the second transmission chain rises. The lifting platform 30 descends, and the sensor fitting 21 triggers the low-position sensor 24, and the motor 50 stops. At this time, the horizontal conveyor line 40 on the lifting platform is flush with the empty tray conveyor line. The motor of the horizontal conveyor line 40 rotates in the reverse direction, and the horizontal conveyor line 40 operates in the reverse direction to convey the empty tray to the empty tray conveyor line. When the empty tray no longer blocks the photoelectric sensors on both sides of the horizontal conveyor line 40, the horizontal conveyor line 40 stops, and the empty tray conveyor line conveys the empty tray back to the head end of the household appliance conveyor line for reuse. Under the control of the main control unit, the motor 50 of the transmission system rotates in the reverse direction, the lifting platform 30 rises, the counterweight 55 descends, the sensor fitting 21 triggers the high-position sensor 23, and the motor 50 stops. At this time, the horizontal conveyor line 40 on the lifting platform is flush with the household appliance conveyor line.

[0033] The above content is only the preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and application scope. The content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A lifting mechanism for a recycling carrier tray, comprising a lifting platform (30) provided with a horizontal conveyor line (40), a first support (10) and a second support (20) located on the left and right sides of the lifting platform. A transmission system is provided in the first support and the second support. The transmission system includes a first driving sprocket (51) driven by a motor (50), a first transmission chain engaged with the first driving sprocket. One end of the first transmission chain is connected to the left end (301) of the lifting platform, and the other end of the first transmission chain is connected to a counterweight (55). The first driving sprocket, the first transmission chain and the counterweight are all located in the first support. It is characterized in that: The first driving sprocket (51) is coaxially provided with a second driving sprocket (52). The second driving sprocket is engaged with a second transmission chain. One end of the second transmission chain is connected to the counterweight, and the other end of the second transmission chain extends into the second bracket (20) through a plurality of intermediate sprockets and is connected to the right end (302) of the lifting platform.

2. The lifting mechanism for recycling the carrier tray according to claim 1, wherein: The intermediate sprockets include a first intermediate sprocket (531), a second intermediate sprocket (532), and a third intermediate sprocket (533). The first intermediate sprocket is arranged at the bottom of the first bracket (10), the second intermediate sprocket is arranged at the bottom of the second bracket (20), and the third intermediate sprocket is arranged at the top of the second bracket. The other end of the second transmission chain is sequentially connected to the right end (302) of the lifting platform after passing through the first intermediate sprocket, the second intermediate sprocket, and the third intermediate sprocket.

3. The lifting mechanism for recycling the carrier tray according to claim 2, wherein: A first through hole is formed in the bottom side wall of the first bracket (10), and a corresponding second through hole is formed in the bottom side wall of the second bracket (20). A channel-shaped member (11) is connected between the bottom side wall of the first bracket and the bottom side wall of the second bracket. The channel-shaped member communicates the first through hole and the second through hole, and the second transmission chain enters the second bracket through the first through hole, the channel-shaped member, and the second through hole.

4. The lifting mechanism for recycling the carrier tray according to claim 1, wherein: A vertical plate (12) is provided in the first bracket (10). A transmission shaft (54) is installed on the vertical plate. The transmission shaft is connected to the motor (50). The motor is installed on the outer side wall of the first bracket. The first driving sprocket (51) and the second driving sprocket (52) are installed on the transmission shaft. A first vertical guide rail (13) and a second vertical guide rail (14) are provided on the vertical plate. A first slider cooperating with the first vertical guide rail is provided at the left end (301) of the lifting platform, and a second slider cooperating with the second vertical guide rail is provided on the counterweight (55).

5. The lifting mechanism for recycling the carrier tray according to claim 1, wherein: A sensor fitting (21) is provided at the right end (302) of the lifting platform. A sensor mounting bracket (22) is provided in the second bracket (20). A high-level sensor (23) and a low-level sensor (24) are installed on the sensor mounting bracket.

6. The lifting mechanism for recycling carrier trays according to claim 1, characterized in that: The lifting platform (30) includes a pair of cross beams (31) and a pair of longitudinal beams (32) connecting the pair of cross beams. The left ends of the pair of cross beams extend into the first bracket (10), and the right ends of the pair of cross beams extend into the second bracket (20). The horizontal conveyor line (40) is located between the pair of longitudinal beams.

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