Oiling equipment for refrigerator hinge shaft

Abstract

The utility model belongs to the technical field of refrigerator production, and particularly discloses oil coating equipment for a refrigerator hinge shaft. According to the oiling equipment for the hinge shafts of the refrigerators, the conveying device achieves automatic feeding of the refrigerators, the number of the hinge shafts of the refrigerators of different models and the arrangement positions of the hinge shafts are different, and the recognition device is used for recognizing the models of the refrigerators so as to determine the positions and the number of the hinge shafts. The driving unit can control the oil coating position of the oil coating piece at the oil coating station according to the obtained information such as the position and the number of the hinge shafts, automatic oil coating is achieved, the problem of oil coating omission is avoided, the positions of the hinge shafts can be accurately positioned, the oil coating quality is guaranteed, and the working efficiency is improved. Insufficient lubrication between the hinge shaft and the door body caused by less coating is avoided, and grease waste caused by excessive coating is also avoided; in addition, the oil spraying device sprays grease to the grease coating piece, then the hinge shaft is coated with the grease coating piece, and automatic feeding of the grease is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigerator production technical field especially relates to a kind of oiling equipment for refrigerator hinge shaft. BACKGROUND

[0002] The existing refrigerator generally has cabinet and door body pivotally installed to cabinet. Specifically, hinge shaft is fixedly arranged on cabinet, and door body is rotatably installed to hinge shaft to realize the pivotal connection between door body and cabinet. In order to prevent abnormal sound between door body and hinge shaft due to friction during rotation, hinge shaft needs to be oiled before door body is installed to hinge shaft.

[0003] Currently, oil is generally applied to hinge shaft by manual brushing. However, due to fast rhythm on refrigerator production line, labor intensity of worker is large, fatigue is easy to occur, and missing application phenomenon is prone to occur. And manual oiling of hinge shaft is also prone to over-oiling or under-oiling. When hinge shaft is over-oiled, not only oil waste is caused, but also oil is prone to flow out from the connection between door body and hinge shaft, which is easy to cause refrigerator pollution and affect refrigerator appearance. When hinge shaft is under-oiled, lubrication between hinge shaft and door body is insufficient, and abnormal sound is still prone to occur. Manual oiling is also prone to missing application. SUMMARY

[0004] The utility model aims at providing a kind of oiling equipment for refrigerator hinge shaft, instead of manual oiling, uniform application, not under-oiling to cause insufficient lubrication between hinge shaft and door body, also not over-oiling to cause oil waste, and missing application problem is not prone to occur.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A kind of oiling equipment for refrigerator hinge shaft, comprising:

[0007] Conveying device for conveying refrigerator to oiling station;

[0008] Identification device is arranged at the oiling station, and the identification device is used to identify the model of refrigerator at the oiling station;

[0009] Oiling device is arranged at one side of the oiling station, and the oiling device comprises at least one driving unit, each driving unit is provided with oiling piece, and the driving unit is used to control the oiling position of the oiling piece at the oiling station according to the model of refrigerator obtained by the identification device;

[0010] The oil injection device is arranged at the oil injection station, the driving unit can drive the oil applying member to be arranged at the oil injection station, and the oil injection device is used for injecting oil to the oil applying member arranged at the oil injection station.

[0011] As an optional technical solution of the oil applying device for the refrigerator hinge shaft, the driving unit comprises a mechanical arm with multiple degrees of freedom, an execution end of the mechanical arm is provided with the oil applying member, and the mechanical arm is used for controlling the oil applying position of the oil applying member at the oil applying station according to the signal of the refrigerator acquired by the identification device, or the mechanical arm drives the oil applying member to be arranged at the oil injection station.

[0012] As an optional technical solution of the oil applying device for the refrigerator hinge shaft, the oil applying member comprises a brush and a brush mounting seat, the brush mounting seat is connected with the driving unit, and the brush is fixedly arranged on the brush mounting seat.

[0013] The oil injection device comprises at least two oil injection nozzles, and at least one oil injection nozzle is arranged on each of the opposite sides of the brush arranged at the oil injection station.

[0014] As an optional technical solution of the oil applying device for the refrigerator hinge shaft, an oil recovery box is arranged below the oil injection nozzle.

[0015] As an optional technical solution of the oil applying device for the refrigerator hinge shaft, a plurality of driving units are arranged, and the oil injection device is arranged in one-to-one correspondence with the oil applying member.

[0016] As an optional technical solution of the oil applying device for the refrigerator hinge shaft, the positioning device further comprises a first positioning unit and a second positioning unit, the first positioning unit and the second positioning unit are arranged in a first direction and are spaced apart, and the distance between the first positioning unit and the second positioning unit is adjustable.

[0017] As an optional technical solution of the oil applying device for the refrigerator hinge shaft, the first positioning unit comprises a first positioning seat, the first positioning seat is fixedly arranged on one side of the conveying device, and a first positioning plate is arranged on the first positioning seat.

[0018] The second positioning unit comprises a second positioning plate, the second positioning plate is arranged opposite to the first positioning plate, the second positioning plate is connected with a positioning driving member, and the positioning driving member is used for driving the second positioning plate to move towards the first positioning plate.

[0019] As an optional technical scheme of the oiling device for the refrigerator hinge shaft, an outfeed guide roller set is arranged at the outfeed end of the oiling station, and the outfeed guide roller set is arranged on the conveying device close to one side of the first positioning unit.

[0020] The outfeed guide roller set comprises an outfeed guide roller seat and a plurality of outfeed guide rollers, the plurality of outfeed guide rollers are arranged on the outfeed guide roller seat in the second direction, the outfeed guide roller set is arranged obliquely, the distance between one end of the outfeed guide roller set close to the oiling station and the edge of the conveying device is smaller than the distance between the other end of the outfeed guide roller set and the edge of the conveying device, and the outfeed guide rollers are arranged towards the inner side of the conveying device.

[0021] As an optional technical scheme of the oiling device for the refrigerator hinge shaft, a stop device is further arranged at the outfeed end of the oiling station, the stop device comprises at least one stop unit, the stop unit comprises a stop seat and a stop driving member, the stop seat is fixedly arranged on the side surface of the conveying device, the stop driving member is fixedly arranged on the stop seat, a stop plate is connected to the driving end of the stop driving member, a plurality of rollers are arranged on one side of the stop plate, the stop driving member is used for driving the stop plate to move in the first direction, and the rollers are used for rolling contact with the refrigerator arranged at the oiling station.

[0022] As an optional technical scheme of the oiling device for the refrigerator hinge shaft, two infeed guide roller sets are arranged at the infeed end of the oiling station on the conveying device, each infeed guide roller set comprises an infeed guide roller seat and a plurality of infeed guide rollers, the plurality of infeed guide rollers are arranged on the infeed guide roller seat in the second direction, the two infeed guide roller sets are arranged in the first direction and in a trumpet shape, the end with a smaller opening of the trumpet shape is towards the oiling station, and the infeed guide rollers of the two infeed guide roller sets are arranged oppositely.

[0023] The utility model discloses the beneficial effect:

[0024] The oiling equipment for the refrigerator hinge shaft provided by the utility model realizes the automatic feeding of the refrigerator, the number of the hinge shafts of different models of the refrigerator and the different positions of the hinge shafts, the identification device is used for identifying the model of the refrigerator to determine the position and the number of the hinge shafts, the driving unit can control the oiling position of the oiling piece at the oiling station according to the acquired position and the number of the hinge shafts and other information, realizes the automatic smearing of the oil, avoids the problem of the missed smearing of the oil, can accurately position the position of the hinge shaft, guarantees the quality of the smearing of the oil, will not cause the insufficient lubrication between the hinge shaft and the door body due to the less smearing, and will not cause the waste of the oil due to the more smearing, in addition, the oil spraying device sprays the oil to the oiling piece, and then the oiling piece smears the hinge shaft, realizes the automatic feeding of the oil. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the whole structure schematic view of the oiling equipment for the refrigerator hinge shaft provided by the utility model embodiment;

[0026] Figure 2 It is the structure schematic view of the oiling device and the oil spraying device provided by the utility model embodiment;

[0027] Figure 3 It is the local enlarged structure schematic view of the oiling device and the oil spraying device provided by the utility model embodiment;

[0028] Figure 4 It is the structure schematic view of the first positioning unit, the second positioning unit and the identification device provided by the utility model embodiment;

[0029] Figure 5 It is the structure schematic view of the second positioning unit provided by the utility model embodiment;

[0030] Figure 6 It is the structure schematic view of the stop unit and the discharge guide roller group provided by the utility model embodiment;

[0031] Figure 7 It is the structure schematic view of the first positioning unit, the second positioning unit and the stop unit provided by the utility model embodiment;

[0032] Figure 8 It is the structure schematic view of the feeding guide roller group provided by the utility model embodiment.

[0033] In the drawing:

[0034] 100, refrigerator;

[0035] 1, conveying device; 2, identification device; 3, oiling device; 4, oil spraying device; 5, oil recovery tank; 7, discharge guide roller group; 9, feeding guide roller group; 10, oil supply device;

[0036] 21, two-dimensional code scanner; 22, identification device mounting seat;

[0037] 31, driving unit; 32, oiling member; 321, squeegee; 322, squeegee mounting seat;

[0038] 41, oil nozzle; 42, oil injection valve;

[0039] 51, recycling box support seat;

[0040] 61, first positioning unit; 611, first positioning seat; 612, first positioning plate; 62, second positioning unit; 621, second positioning plate; 622, positioning driving member; 623, first connecting plate; 624, second connecting plate;

[0041] 71, discharge guide roller seat; 72, discharge guide roller;

[0042] 81, stop unit; 811, stop seat; 812, stop driving member; 813, stop plate; 814, roller;

[0043] 91, feeding guide roller seat; 92, feeding guide roller. DETAILED DESCRIPTION

[0044] The utility model will be further described in detail below in combination with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0045] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through intermediate medium, it can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0046] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature, can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "on" second feature include that first feature is directly above and obliquely above second feature, or only indicates that first feature horizontal height is higher than second feature. First feature "under", "below" and "under" second feature include that first feature is directly below and obliquely below second feature, or only indicates that first feature horizontal height is less than second feature.

[0047] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0048] As shown in Figures 1 to 3 The utility model provides a kind of oiling equipment for refrigerator hinge shaft, which comprises conveying device 1, identification device 2, oiling device 3 and oil spraying device 4.The conveying device 1 is used to convey the refrigerator 100 to the oiling station, and the identification device 2 is arranged at the oiling station.The identification device 2 is used to identify the model of the refrigerator 100 at the oiling station.The oiling device 3 is arranged on one side of the oiling station, and the oiling device 3 comprises at least one driving unit 31, and each driving unit 31 is provided with an oiling part 32.The driving unit 31 is used to control the oiling position of the oiling part 32 at the oiling station according to the model of the refrigerator 100 obtained by the identification device 2.The oil spraying device 4 is arranged at the oil spraying station, and the driving unit 31 can drive the oiling part 32 to be placed at the oil spraying station.The oil spraying device 4 is used to spray oil to the oiling part 32 at the oil spraying station.

[0049] The oiling equipment for refrigerator hinge shaft provided by the present embodiment realizes automatic feeding of the refrigerator 100.The number of hinge shafts and the positions of hinge shafts of different models of refrigerators 100 are different.The identification device 2 is used to identify the model of the refrigerator 100 to determine the position and number of hinge shafts.The driving unit 31 can control the oiling position of the oiling part 32 at the oiling station according to the obtained position and number of hinge shafts, etc., to realize automatic oiling, avoid the problem of missing oiling, accurately position the hinge shaft, ensure the quality of oiling, and prevent insufficient lubrication between the hinge shaft and the door body due to insufficient oiling, or waste of oil due to excessive oiling.In addition, the oil spraying device 4 sprays oil to the oiling part 32, and then the oiling part 32 applies oil to the hinge shaft to realize automatic oil supply.

[0050] In some embodiments, the conveying device 1 is a roller conveying structure or a belt conveying structure. Since the structure of the conveying device 1 is prior art, it is not specifically limited here.

[0051] The identification device 2 is used to obtain the model number of the refrigerator 100. Currently, refrigerators 100 typically have a QR code; scanning the QR code retrieves information such as the refrigerator's model number. The identification device 2 includes a QR code scanner 21, which scans the QR code on the refrigerator 100 to obtain its model number. The oiling device 3 then applies grease to the hinge shaft based on the obtained refrigerator model number. If the refrigerator 100 does not have a QR code, it will have text information about its model number. In this case, the identification device 2 includes an image acquisition device that captures an image of the refrigerator model number to obtain the refrigerator's model number.

[0052] See also Figure 2 , Figure 3 and Figure 4 As shown, the oiling device 3 is set on one side of the oiling station, and the identification device 2 is set on the other side of the oiling station. The identification device 2 also includes an identification device mounting base 22, and a QR code scanner 21 or an image collector is installed on the identification device mounting base 22. The height of the QR code scanner 21 or the image collector is adjustable, which improves the flexibility of the oiling equipment and is suitable for oiling different types of refrigerators 100.

[0053] In some embodiments, the drive unit 31 includes a multi-degree-of-freedom robotic arm. The end effector of the robotic arm is equipped with an oiling component 32. The robotic arm controls the oiling position of the oiling component 32 at the oiling station based on signals from the refrigerator 100 acquired by the identification device 2, or drives the oiling component 32 to the spraying station. The robotic arm drives the oiling component 32 to perform the oiling action. The multi-degree-of-freedom robotic arm can precisely position itself at a point in three-dimensional space for operation, offering high flexibility and good uniformity of grease application. The robotic arm can be a six-degree-of-freedom robotic arm, capable of applying grease from different angles to ensure uniform grease application to the hinge shaft.

[0054] The grease applicator 32 includes a brush 321 and a brush mounting base 322. The brush mounting base 322 is connected to the drive unit 31, and the brush 321 is fixedly mounted on the brush mounting base 322. Applying grease using the brush 321 improves the uniformity of grease application on the hinge shaft.

[0055] The oil spraying device 4 includes at least two oil spray nozzles 41. At least one oil spray nozzle 41 is provided on each of the opposite sides of the brush 321 located at the oil spraying station, so as to realize double-sided oil spraying of the brush 321, improve the uniformity of the grease sprayed onto the brush 321, and thus improve the uniformity of the grease application on the hinge shaft.

[0056] Each nozzle 41 is also connected to a spray valve 42. The spray valve 42 is used to control the amount of grease on the spray brush 321 and to control the timing of spraying grease onto the brush 321, so as to achieve uniformity of grease on the spray brush 321 and avoid waste due to excessive grease or uneven application of grease to the hinge shaft due to insufficient grease.

[0057] The oil injection device 4 is connected to the oil supply device 10, which provides grease to the oil injection device 4. The oil supply device 10 is a pressure plate pump, and the structure of the pressure plate pump is existing technology, which will not be described in detail here.

[0058] A grease recovery tank 5 is installed below the oil spraying device 4. The grease recovery tank 5 is used to collect grease dripping from the oil spraying device 4 or the brush 321 to prevent environmental pollution. The grease in the grease recovery tank 5 can also be recycled and reused to avoid waste. A recovery tank support 51 is installed below the grease recovery tank 5. One end of the recovery tank support 51 is fixed to the ground, and the other end of the recovery tank support 51 is used to fix the grease recovery tank 5. The oil spraying device 4 is also installed on the recovery tank support 51.

[0059] Each oil spraying device 4 corresponds to one drive unit 31 to improve work efficiency. Optionally, the oiling device 3 includes multiple drive units 31, each drive unit 31 is equipped with an oiling component 32, and each oiling component 32 corresponds to one oil spraying device 4. When the refrigerator 100 has multiple hinge shafts, multiple drive units 31 can work simultaneously to improve work efficiency. Alternatively, one drive unit 31 can be the primary device, while the remaining drive units 31 serve as backup devices. When the primary device fails, the backup devices start working, thus enabling uninterrupted operation.

[0060] See Figure 1As shown, in some embodiments, the oiling device for the refrigerator hinge shaft further includes a positioning device disposed at the oiling station. The positioning device includes a first positioning unit 61 and a second positioning unit 62, which are spaced apart along a first direction, and the distance between the first positioning unit 61 and the second positioning unit 62 is adjustable. The first positioning unit 61 and the second positioning unit 62 cooperate to position the refrigerator 100 disposed at the oiling station in the width direction, ensuring that the oiling device 3 can accurately apply grease to the hinge shaft, thus improving the quality of grease application. In addition, the adjustable distance between the first positioning unit 61 and the second positioning unit 62 facilitates the entry of the refrigerator 100 into the oiling station and allows for positioning of different models of refrigerators 100, improving the flexibility of the oiling device.

[0061] Optionally, such as Figure 4 and Figure 5 As shown, the first positioning unit 61 includes a first positioning seat 611, which is fixedly disposed on one side of the conveying device 1. A first positioning plate 612 is provided on the first positioning seat 611. The second positioning unit 62 includes a second positioning plate 621, which is disposed opposite to the first positioning plate 612. A positioning drive member 622 is connected to the second positioning plate 621, which is used to drive the second positioning plate 621 to move toward the first positioning plate 612. The first positioning plate 612 and the second positioning plate 621 are clamped on opposite sides of the refrigerator 100.

[0062] The conveying device 1 is a roller conveying structure. The positioning drive 622 includes a drive cylinder, which is located below the conveying device 1. The piston rod end of the drive cylinder is connected to a first connecting plate 623. Multiple second connecting plates 624 are provided on the first connecting plate 623 along a second direction. One end of each second connecting plate 624 is perpendicularly connected to the first connecting plate 623, and the other end of each second connecting plate 624 passes through the gap between two adjacent conveying rollers. A second positioning plate 621 is connected to the multiple second connecting plates 624. The drive cylinder can drive the second positioning plate 621 to move in the first direction to clamp or release the refrigerator 100. In other possible embodiments, the positioning drive 622 includes a drive cylinder, the piston rod end of which is connected to the second positioning plate 621. The drive cylinder is positioned higher than the conveying device 1, and will not interfere with the conveying device 1 when driving the second positioning plate 621 to move. The drive cylinder can be directly connected to the second positioning plate 621, simplifying the structure of the second positioning unit 62.

[0063] Combination Figure 2 , Figure 4 and Figure 6As shown, a discharge guide roller assembly 7 is provided at the discharge end of the oiling station. The discharge guide roller assembly 7 is located on the side of the conveying device 1 near the first positioning unit 61. The discharge guide roller assembly 7 includes a discharge guide roller seat 71 and a plurality of discharge guide rollers 72. The plurality of discharge guide rollers 72 are arranged along the second direction on the discharge guide roller seat 71. The discharge guide roller assembly 7 is inclined, and the distance between the end of the discharge guide roller assembly 7 near the oiling station and the edge of the conveying device 1 is smaller than the distance between the other end of the discharge guide roller assembly 7 and the edge of the conveying device 1. The discharge guide roller assembly 7 is arranged facing the inner side of the conveying device 1. When the first positioning unit 61 and the second positioning unit 62 position the refrigerator 100, the second positioning plate 621 moves towards the first positioning plate 612 to clamp the refrigerator 100, which corrects the position of the refrigerator 100 in the first direction, causing the refrigerator 100 to move towards the first positioning plate 612. The refrigerator 100 then moves closer to the side of the conveying device 1 where the first positioning unit 61 is located. After the hinge shaft of the refrigerator 100 is greased, the conveying device 1 moves the refrigerator 100 to the next processing station. To prevent the refrigerator 100 from rubbing against the edge of the conveying device 1, a discharge guide roller group 7 is provided. Under the guidance of the discharge guide roller group 7, the refrigerator 100 moves to the middle of the conveying device 1 in the first direction. The discharge guide roller 72 of the discharge guide roller group 7 contacts the refrigerator 100, reducing the contact friction between the refrigerator 100 and the discharge guide roller group 7, thus protecting the refrigerator 100 from being scratched.

[0064] The position of the discharge guide roller assembly 7 in the first direction is adjustable to suit different models of refrigerators 100. Adjusting rods are connected to both ends of the discharge guide roller seat 71. These adjusting rods are movably connected to the conveying device 1. Adjusting the position of the adjusting rods adjusts the position of the discharge guide roller seat 71. After adjusting the position of the discharge guide roller seat 71, the adjusting rods are locked onto the conveying device 1, thereby fixing the position of the discharge guide roller seat 71.

[0065] like Figure 4 , Figure 6 and Figure 7As shown, in some embodiments, the oiling equipment for the refrigerator hinge shaft further includes a stop device. The stop device is disposed at the discharge end of the oiling station. The stop device includes at least one stop unit 81. The stop unit 81 includes a stop seat 811 and a stop drive member 812. The stop seat 811 is fixedly disposed on the side of the conveying device 1. The stop drive member 812 is fixedly disposed on the stop seat 811. The drive end of the stop drive member 812 is connected to a stop plate 813. One end of the stop plate 813 is provided with multiple rollers 814. The stop drive member 812 drives the stop plate 813 to move along a first direction. The rollers 814 are used to roll into contact with the refrigerator 100 placed at the oiling station. When the stop unit 81 moves relative to the refrigerator 100, the rollers 814 are set and roll into contact with the refrigerator 100 to avoid scratching the refrigerator 100. The stop unit 81 positions the refrigerator 100 at the oiling station, ensuring the accuracy of the oiling position and improving the oiling quality. The stop drive component 812 can be a cylinder, which has a simple structure and low operating cost.

[0066] Optionally, two stop units 81 are provided, and the two stop units 81 are arranged on opposite sides of the conveying device 1, that is, the two stop units 81 are spaced apart along the first direction.

[0067] like Figure 4 and Figure 8 As shown, in some embodiments, the conveying device 1 is equipped with two feed guide roller sets 9 at the feeding end of the oiling station. Each feed guide roller set 9 includes a feed guide roller seat 91 and multiple feed guide rollers 92. The multiple feed guide rollers 92 are arranged along a second direction on the feed guide roller seat 91. The two feed guide roller sets 9 are spaced apart along a first direction and are in a trumpet shape, with the smaller opening facing the oiling station. The feed guide rollers 92 of the two feed guide roller sets 9 are arranged facing each other. The two feed guide roller sets 9 play a role in position correction for the refrigerator 100 that is about to enter the oiling station, placing the refrigerator 100 in the middle position of the conveying device 1 in the first direction, and preventing the refrigerator 100 from rubbing against the first positioning unit 61 or the second positioning unit 62 when entering the oiling station. Optionally, the position of the two feed guide roller sets 9 in the first direction can be adjusted to suit different models of refrigerator 100. Each feed guide roller seat 91 has an adjusting rod connected to both ends. The adjusting rod is movably connected to the conveying device 1. Adjusting the position of the adjusting rod can adjust the position of the feed guide roller seat 91. After adjusting the position of the feed guide roller seat 91, the adjusting rod is locked on the conveying device 1, thereby fixing the position of the feed guide roller seat 91.

[0068] Safety guard plates are also provided around the outer periphery of the oiling device 3, the second positioning unit 62 and the stop unit 81 to prevent the operation of each device from threatening the personal safety of the operator.

[0069] When using the oiling device 3 provided in this application, the refrigerator 100, placed on the conveying device 1, is positioned correctly under the guidance of the feed guide roller group 9 and enters the oiling station, at which point the conveying device 1 stops conveying. The first positioning unit 61 and the second positioning unit 62 position the refrigerator 100 in the first direction, and the stop unit 81 stops the refrigerator 100 in the second direction. The drive unit 31 of the oiling device 3 drives the oiling component 32 to the oiling station, where the oiling station sprays grease onto the oiling component 32. The drive unit 31 determines the oiling position of the oiling component 32 at the oiling station based on the signal from the refrigerator 100 obtained by the identification device 2, and then drives the oiling component 32 to apply grease to the hinge shaft. After the grease application is completed, the drive unit 31 drives the oiling component 32 to move to the oiling station to prepare for applying grease to the hinge shaft of the next refrigerator 100. The first positioning unit 61 and the second positioning unit 62 release the positioning of the refrigerator 100 in the first direction, the stop unit 81 releases the stop on the refrigerator 100 in the second direction, and the conveying device 1 continues to work to convey the refrigerator 100 to the next station.

[0070] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An oiling device for refrigerator hinge shafts, characterized in that, include: A conveying device (1) is used to convey a refrigerator (100) to an oiling station; An identification device (2) is installed at the oiling station. The identification device (2) is used to identify the model of the refrigerator (100) at the oiling station. An oiling device (3) is provided on one side of the oiling station. The oiling device (3) includes at least one drive unit (31). Each drive unit (31) is provided with an oiling component (32). The drive unit (31) is used to control the oiling position of the oiling component (32) at the oiling station according to the model of the refrigerator (100) obtained by the identification device (2). The oil spraying device (4) is set at the oil spraying station. The driving unit (31) can drive the oiling part (32) to be placed at the oil spraying station. The oil spraying device (4) is used to spray grease onto the oiling part (32) placed at the oil spraying station.

2. The oiling device for refrigerator hinge shafts according to claim 1, characterized in that, The drive unit (31) includes a multi-degree-of-freedom robotic arm, the end of which is provided with the oiling component (32). The robotic arm is used to control the oiling position of the oiling component (32) at the oiling station according to the signal of the refrigerator (100) obtained by the identification device (2), or the robotic arm drives the oiling component (32) to be placed at the spraying station.

3. The oiling device for refrigerator hinge shafts according to claim 1, characterized in that, The oiling component (32) includes a brush (321) and a brush mounting base (322). The brush mounting base (322) is connected to the drive unit (31), and the brush (321) is fixedly mounted on the brush mounting base (322). The oil spraying device (4) includes at least two oil spray nozzles (41), and at least one oil spray nozzle (41) is provided on each of the opposite sides of the brush (321) located at the oil spraying station.

4. The oiling device for refrigerator hinge shafts according to claim 3, characterized in that, A grease recovery box (5) is provided below the fuel injector (41).

5. The oiling device for refrigerator hinge shafts according to claim 1, characterized in that, The drive unit (31) is provided in multiple ways, and the oil spraying device (4) is provided in a one-to-one correspondence with the oiling component (32).

6. The oiling device for refrigerator hinge shafts according to any one of claims 1-5, characterized in that, It also includes a positioning device set at the oiling station, the positioning device including a first positioning unit (61) and a second positioning unit (62), the first positioning unit (61) and the second positioning unit (62) are arranged at intervals along a first direction, and the distance between the first positioning unit (61) and the second positioning unit (62) is adjustable.

7. The oiling device for refrigerator hinge shafts according to claim 6, characterized in that, The first positioning unit (61) includes a first positioning seat (611), which is fixedly disposed on one side of the conveying device (1), and a first positioning plate (612) is provided on the first positioning seat (611). The second positioning unit (62) includes a second positioning plate (621), which is disposed opposite to the first positioning plate (612). The second positioning plate (621) is connected to a positioning drive member (622), which is used to drive the second positioning plate (621) to move toward the first positioning plate (612).

8. The oiling device for refrigerator hinge shafts according to claim 7, characterized in that, A discharge guide roller assembly (7) is provided at the discharge end of the oiling station. The discharge guide roller assembly (7) is located on the side of the conveying device (1) close to the first positioning unit (61). The discharge guide roller assembly (7) includes a discharge guide roller seat (71) and a plurality of discharge guide rollers (72). The plurality of discharge guide rollers (72) are arranged on the discharge guide roller seat (71) along a second direction. The discharge guide roller assembly (7) is inclined, and the distance between the end of the discharge guide roller assembly (7) near the oiling station and the edge of the conveying device (1) is smaller than the distance between the other end of the discharge guide roller assembly (7) and the edge of the conveying device (1). The discharge guide rollers (72) are arranged facing the inner side of the conveying device (1).

9. The oiling device for refrigerator hinge shafts according to any one of claims 1-5, characterized in that, It also includes a stop device, which is disposed at the discharge end of the oiling station. The stop device includes at least one stop unit (81). The stop unit (81) includes a stop seat (811) and a stop drive (812). The stop seat (811) is fixedly disposed on the side of the conveying device (1). The stop drive (812) is fixedly disposed on the stop seat (811). The drive end of the stop drive (812) is connected to a stop plate (813). A plurality of rollers (814) are provided on one side of the stop plate (813). The stop drive (812) is used to drive the stop plate (813) to move along a first direction. The rollers (814) are used to make rolling contact with the refrigerator (100) placed at the oiling station.

10. The oiling device for a refrigerator hinge shaft according to any one of claims 1-5, characterized in that, The conveying device (1) is provided with two feed guide roller sets (9) at the feed end of the oiling station. Each feed guide roller set (9) includes a feed guide roller seat (91) and multiple feed guide rollers (92). The multiple feed guide rollers (92) are arranged on the feed guide roller seat (91) along the second direction. The two feed guide roller sets (9) are spaced apart along the first direction and are in the shape of a trumpet, with the smaller opening facing the oiling station. The feed guide rollers (92) of the two feed guide roller sets (9) are arranged facing each other.

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