A reverse self-adjusting workpiece vertical light conveyor

Abstract

The present application relates to a kind of reverse self-adjusting workpiece vertical light conveyors applied to the related field of conveying equipment, by the setting of workpiece carrier plate with bidirectional heart rotation angle long hole, in the transfer process, workpiece carrier plate can be with the amplitude of ups and downs self-adapting angle, to always position vertical state, effectively avoid the unexpected drop of workpiece in the transport section, in addition, in the workpiece transfer process, by the setting of inclination sensing rod, the running condition of workpiece carrier plate can be monitored in real time, it is convenient to find the jam in the workpiece running process and the abnormal situation of workpiece carrier plate perpendicularity, compared with prior art, it is convenient to find abnormality in time, effectively avoid the situation that the present conveyor still continues to carry out workpiece conveying under abnormal condition, greatly improve the stability of workpiece transportation.

Description

Technical Field

[0001] This invention relates to a reverse self-adjusting lightweight conveyor for vertical workpieces, and particularly to a reverse self-adjusting lightweight conveyor for vertical workpieces applied in the field of conveying equipment. Background Technology

[0002] A three-rail ground conveyor consists of a reverse conveyor chain and a frame. The conveyor chain provides power, and the frame is supported on auxiliary rails on both sides. Existing three-rail ground conveyors are suitable for use with larger workpieces and in situations where the workpieces need to rotate. However, for small workpieces with low rotation requirements, the three-rail ground conveyor has a high conveying cost.

[0003] To address the aforementioned issues, Chinese patent CN102826332B discloses a chain conveyor that is suitable for transporting small workpieces. However, the angle of the chain conveyor is relatively fixed. Due to the complex and unpredictable workshop environment, the conveyor may experience ups and downs during transport, causing small workpieces to move with the tilt angle generated by the ups and downs, and they may even fall off, affecting the normal transport of the workpieces. Summary of the Invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that when transporting small workpieces, the position of the workpiece is easily moved due to the tilt angle in the conveyor section on the uphill or downhill slope, and in severe cases, the workpiece may fall off.

[0005] To address the aforementioned problems, this invention provides a lightweight conveyor with reverse self-adjusting workpiece verticality, comprising a conveying unit with a control center and a track matching the conveying unit. The track includes a guide rail and an auxiliary rail located above one side of the guide rail. The guide rail and the auxiliary rail are fixedly connected by multiple angle plates. A sprocket is connected to the upper end of a double U-shaped lifting rod via a bearing. The upper end of the sprocket has multiple mounting holes arranged in a circular array. A workpiece carrier plate is fixedly connected to the lower end of the double U-shaped lifting rod. Two outwardly expanding plates are provided outside the workpiece carrier plate. Two corner elongated holes are drilled on the upper part. Two outer expansion plates are connected to the outside of the workpiece carrier plate by two screws. The screws move through the corresponding corner elongated holes. The screws are fitted with spacer rings. The spacer rings are directly opposite the corner elongated holes. The two ends of the spacer rings contact the two outer expansion plates respectively. The lower ends of the two outer expansion plates are equipped with sprockets. The sprockets include multiple guide double wheels connected by universal joints in a staggered manner. The lower ends of the two outer expansion plates correspond to two laterally distributed guide double wheels. The shafts of the two guide double wheels move through the outer expansion plates. The guide double wheels slide in match with the guide rail. The workpiece carrier plate is rotatably connected to the front and rear outer ends with connecting rods. The ends of the connecting rods away from the workpiece carrier plate are connected to adjusting wheels via bearings. One of the adjusting wheels slides in match with the auxiliary rail. The double U-shaped lifting rod is equipped with an inclination sensing rod, which is connected to the control center signal.

[0006] In the aforementioned lightweight conveyor with reverse self-adjusting workpiece verticality, the workpiece carrier plate with bidirectional pivot holes can adapt its angle according to the slope during transport, thus maintaining a vertical position and effectively preventing the workpiece from accidentally falling off during the transport section.

[0007] As a further improvement to this application, the two adjusting wheels are symmetrical about the axis of the workpiece carrier plate.

[0008] As a further improvement of this application, both corner elongated holes are arc-shaped towards the center of the workpiece carrier plate, and the edges at both ends of the corner elongated holes are semi-circular, with the center of the edge of one corner elongated hole falling at the center of the semi-circle above the other corner elongated hole.

[0009] As a further improvement of this application, the tilt sensing rod includes a vertical rod fixedly embedded inside the double U-shaped lifting rod and a horizontal shoulder rod fixedly connected to the top of the vertical rod. The horizontal shoulder rod and the vertical rod are interconnected. Both ends of the horizontal shoulder rod are fixedly extended to the outside of the double U-shaped lifting rod, and the horizontal shoulder rod corresponds to and is parallel to the upper end of the workpiece carrier plate.

[0010] As a further improvement of this application, two light sensors symmetrical about the vertical bar are installed on the top of the horizontal shoulder bar, and light guide plates are fixedly embedded at both ends of the horizontal shoulder bar, with the light guide plates located below the central axis of the horizontal shoulder bar.

[0011] As a further improvement of this application, the vertical rod and the light guide plate are filled with black liquid. The liquid level of the black liquid is flush with the center line of the horizontal shoulder rod. The horizontal shoulder rod is made of opaque material, the light guide plate is made of transparent material, and the top of the light guide plate is lower than the center line of the horizontal shoulder rod.

[0012] As another improvement of this application, an annular groove is carved in the middle of the inner wall of the corner elongated hole. A self-undulating lubricating strip is embedded in the annular groove. The self-undulating lubricating strip includes a flexible connecting layer fixedly connected to the inner wall of the annular groove, multiple graphite pillars that move through the flexible connecting layer, and multiple magnetic plates fixedly attached to the flexible connecting layer facing the inner wall of the annular groove. The flexible connecting layer is made of elastic material, and the multiple graphite pillars are fixedly connected to the corresponding magnetic plates.

[0013] As a further improvement to this application, the spacer ring has an I-shaped structure, with both ends located outside the corner elongated holes. An iron sheet layer is fixedly embedded in the middle of the spacer ring, and there is a mutual attraction between the iron sheet layer and the magnetic plate. In summary, by setting up a workpiece carrier plate with bidirectional corner elongated holes, the workpiece carrier plate can adaptively adjust its angle according to the slope during transport, thus maintaining a vertical position at all times. This effectively prevents the workpiece from accidentally falling off during this transport segment. Furthermore, during workpiece transport, the tilt sensing rod allows for real-time monitoring of the workpiece carrier plate's operation, facilitating timely detection of jams and abnormal verticality of the workpiece carrier plate during operation. Compared to existing technologies, this facilitates timely detection of abnormalities, effectively preventing the conveyor from continuing to transport workpieces under abnormal conditions, and significantly improving the stability of workpiece transport. Attached Figure Description

[0014] Figure 1 This is a perspective view of the first embodiment of this application in use; Figure 2 This is a partial perspective view of the first embodiment of this application in use; Figure 3 This is a perspective view of the first embodiment of this application; Figure 4 This is a perspective view of the workpiece carrier plate portion according to the first embodiment of this application; Figure 5 This is an exploded view of the workpiece carrier plate portion according to the first embodiment of this application; Figure 6 This is a front view of the workpiece during horizontal transport according to the first embodiment of this application; Figure 7 This is a front view of the first embodiment of this application when transporting a workpiece uphill; Figure 8 This is a perspective view of the workpiece carrier plate portion according to the first embodiment of this application; Figure 9 This is a front view of the tilt sensing rod according to the first embodiment of this application; Figure 10 This is a side view of the tilt sensing rod according to the first embodiment of this application; Figure 11 This is a front view of the tilt sensing rod when the workpiece carrier plate is not vertical and tilts in the first embodiment of this application; Figure 12 This is a front view of the workpiece carrier plate portion according to the second embodiment of this application; Figure 13 This is a partial perspective view of the self-undulating lubricating strip according to the second embodiment of this application; Figure 14 This is a front view of the spacer ring according to the second embodiment of this application.

[0015] Explanation of the labels in the diagram: 1. Double U-shaped lifting rod, 2. Chain disc, 3. Adjusting wheel, 301. Auxiliary rail, 4. Workpiece carrier plate, 401. Corner elongated hole, 5. Outer expansion plate, 501. Screw, 502. Inserting spacer ring, 503. Iron sheet layer, 6. Guide double wheel, 601. Guide rail, 7. Inclination sensing rod, 71. Horizontal shoulder rod, 72. Vertical rod, 73. Light guiding plate, 701. Light sensor, 8. Self-undulating lubricating strip, 81. Magnetic plate, 82. Soft connecting layer, 83. Graphite column. Detailed Implementation

[0016] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0017] First implementation method: Figure 1-2 This invention illustrates a lightweight conveyor with reverse self-adjusting workpiece verticality, comprising a conveying unit with a control center and a track matched to the conveying unit. The track includes a guide rail 601 and an auxiliary rail 301 located above one side of the guide rail 601. The guide rail 601 and the auxiliary rail 301 are fixedly connected by multiple angle plates. The upper end of the double U-shaped rod 1 is connected to a chain disc 2 via a bearing. The upper end of the chain disc 2 has multiple mounting holes arranged in a circular array. In actual use, brackets can be installed on the mounting holes to place small workpieces according to the actual size and shape of the workpiece. The chain disc 2 can be connected to a powered chain or electric rack in the prior art as a driving force. This part is prior art and will not be described in detail here.

[0018] like Figure 3-4 The lower end of the double U-shaped lifting rod 1 is fixedly connected to the workpiece carrier plate 4. The workpiece carrier plate 4 is provided with two outer expansion plates 5. The two outer expansion plates 5 are in an inverted Y shape. Two corner elongated holes 401 are drilled on the workpiece carrier plate 4. The two outer expansion plates 5 are connected to the outside of the workpiece carrier plate 4 by two screws 501. The screws 501 move through the corresponding corner elongated holes 401. The screws 501 are fitted with a spacer ring 502. The spacer ring 502 is directly opposite the corner elongated holes 401. The two ends of the spacer ring 502 are in contact with the two outer expansion plates 5 respectively. The lower end of the two outer expansion plates 5 is provided with a sprocket. The sprocket includes multiple guide double wheels 6 connected by universal joints. The lower end of the two outer expansion plates 5 corresponds to the two horizontally distributed guide double wheels 6. The shafts of the two guide double wheels 6 move through the outer expansion plates 5. The guide double wheels 6 slide with the guide rail 601. The workpiece carrier plate 4 is rotatably connected to connecting rods at both its front and rear outer ends. The ends of the connecting rods away from the workpiece carrier plate 4 are connected to adjusting wheels 3 via bearings. One of the adjusting wheels 3 slides in conjunction with the auxiliary rail 301. During use, when encountering uphill or downhill sections, the adjusting wheel 3 matched with the auxiliary rail 301 restricts one corner of the workpiece carrier plate 4 by the auxiliary rail 301, preventing it from changing angle along with the expansion plate 5 to adapt to the guide rail 601. At this time, due to the pulling force of the expansion plate 5 moving with the guide double wheel 6, under the action of the corner elongated hole 401, the expansion plate 5 rotates around the screw 501 away from the sliding adjusting wheel 3, causing relative displacement between the two. Thus, under these conditions, the workpiece carrier plate 4 remains horizontal and perpendicular to the double U-shaped lifting rod 1 connected to it. The workpiece on the chain 2 is vertical and is less prone to displacement due to the inclination of uphill or downhill sections, significantly improving the stability of small workpiece transportation compared to existing technologies.

[0019] In the aforementioned lightweight conveyor with reverse self-adjusting workpiece verticality, the workpiece carrier plate 4 with bidirectional pivot holes 401 is designed so that during the transfer process, the workpiece carrier plate 4 can adapt its angle according to the slope, thus always maintaining a vertical position and effectively preventing the workpiece from accidentally falling off during the transport section.

[0020] The two adjusting wheels 3 are symmetrical about the axis of the workpiece carrier plate 4. One adjusting wheel 3 cooperates with the auxiliary rail 301 to adjust the angle between the workpiece carrier plate 4 and the outer expansion plate 5, so that the workpiece carrier plate 4 always remains horizontal and is not easy to move with the outer expansion plate 5 and the guide double wheels 6 on the uphill and downhill sections. The other adjusting wheel 3 can be used as a counterweight to keep the center of gravity of the workpiece carrier plate 4 in the middle, so that when the outer expansion plate 5 moves relative to it, it is not easy to cause the rotation to be unsmooth due to the center offset.

[0021] Both corner elongated holes 401 are arc-shaped towards the center of the workpiece carrier plate 4, and the edges at both ends of the corner elongated holes 401 are semi-circular. The center of the edge of one corner elongated hole 401 falls on the center of the semi-circle above the other corner elongated hole 401, so that the rotation direction can be completely symmetrical no matter which side rotates. This ensures that the relative position of the workpiece carrier plate 4 and the outer expansion plate 5 is fixed except for the direction, which makes it easy for the workpiece carrier plate 4 to maintain a horizontal state.

[0022] An inclination sensing rod 7 is installed on the double U-shaped boom 1. The inclination sensing rod 7 is connected to the control center signal, such as... Figure 8-9The tilt sensing rod 7 includes a vertical rod 72 fixedly embedded inside the double U-shaped lifting rod 1 and a horizontal shoulder rod 71 fixedly connected to the top of the vertical rod 72. The horizontal shoulder rod 71 and the vertical rod 72 are interconnected. Both ends of the horizontal shoulder rod 71 are fixedly extended outside the double U-shaped lifting rod 1, and the horizontal shoulder rod 71 corresponds to and is parallel to the upper end of the workpiece carrier plate 4. Two light sensors 701 symmetrical about the vertical rod 72 are installed on the top of the horizontal shoulder rod 71. Light guide plates 73 are fixedly embedded at both ends of the horizontal shoulder rod 71, and the light guide plates 73 are located below the central axis of the horizontal shoulder rod 71. The vertical rod 72 and the light guide plates 73 are filled with black liquid. The liquid level of the black liquid is flush with the central line of the horizontal shoulder rod 71. The horizontal shoulder rod 71 is made of opaque material, and the light guide plates 73 are made of transparent material. The top of the light guide plates 73 is lower than the central axis of the horizontal shoulder rod 71.

[0023] like Figure 9 When the workpiece carrier plate 4 is in a horizontal state, the surface of the black liquid is simultaneously above both light guide plates 73, completely covered by the black liquid. At this time, neither of the two light sensors 701 receives a light signal. Figure 11 When the workpiece carrier plate 4 tilts abnormally and fails to remain vertical as expected, the tilt sensing rod 7 tilts accordingly. At this time, the light guide 73 on the tilted side is still covered by black liquid, while the other light guide 73 is partially exposed. The greater the tilt angle of the workpiece carrier plate 4, the more light guide 73 is exposed. At this time, external light can enter the horizontal shoulder rod 71 along the light guide 73, so that the two light sensors 701 receive light signals and generate data. The data on the light sensor 701 that is closer to the light guide 73 on one side is larger. Based on this, the horizontal status of the workpiece carrier plate 4 can be monitored. When an abnormality occurs, it can be detected in time, effectively preventing small workpieces from continuing to be transported under such circumstances, and reducing the probability of displacement or even loss of small workpieces caused by tilting.

[0024] At the same time, based on the data from the two light sensors 701, the specific tilt of the rough workpiece carrier plate 4 can be effectively determined, making it easier for staff to maintain it more quickly.

[0025] In summary, by using the workpiece carrier plate 4 with bidirectional pivot holes 401, the workpiece carrier plate 4 can adapt its angle according to the slope during the transfer process, thus maintaining a vertical position at all times. This effectively prevents the workpiece from accidentally falling off during the transport section. In addition, the tilt sensing rod 7 can monitor the operation of the workpiece carrier plate 4 in real time during the workpiece transfer process, making it easy to detect jams or abnormal verticality of the workpiece carrier plate 4 during the workpiece's operation. Compared with existing technologies, this technology facilitates timely detection of abnormalities and effectively prevents the conveyor from continuing to transport workpieces under abnormal conditions, significantly improving the stability of workpiece transport.

[0026] Second implementation method: This embodiment adds a self-undulating lubricating strip 8 to the first embodiment, while the rest remains the same as the first embodiment.

[0027] Figure 12-13 As shown, an annular groove is carved in the middle of the inner wall of the corner elongated hole 401. A self-undulating lubricating strip 8 is embedded inside the annular groove. The self-undulating lubricating strip includes a flexible connecting layer 82 fixedly connected to the inner wall of the annular groove, multiple graphite pillars 83 movably penetrating the flexible connecting layer 82, and multiple magnetic plates 81 fixedly attached to the flexible connecting layer 82 facing the inner wall of the annular groove. The flexible connecting layer 82 is made of elastic material. The multiple graphite pillars 83 are fixedly connected to the corresponding magnetic plates 81. The two ends of the spacer ring 502 are located outside the corner elongated hole 401. An iron sheet layer 503 is fixedly embedded in the middle of the spacer ring 502. There is a mutual attraction between the iron sheet layer 503 and the magnetic plates 81. During the rotation of the outer expansion plate 5 relative to the workpiece carrier plate 4, the spacer ring 502 moves along the corner elongated hole 401 with the screw 501. 1. Synchronous moving cabinet. At this time, due to the adsorption force, the magnetic plates 81 at the corresponding positions of the iron plate layer 503 will continuously move towards the insert ring 502, thereby causing the corresponding soft connecting layer 82 to deform adaptively. The graphite column 83 also moves towards the insert ring 502 and comes into contact with the insert ring 502. As the insert ring 502 moves, friction occurs between the two, thereby achieving a hard lubrication effect. As the insert ring 502 moves, multiple magnetic plates 81 move towards the insert ring 502 in sequence, thereby causing multiple soft connecting layers 82 to undulate. This ensures that the insert ring 502 can always be hard lubricated by the graphite column 83 during the movement, thereby effectively ensuring the smoothness of the rotation of the outer expansion plate 5, making it less prone to jamming, and thus less likely to affect the stability of the workpiece on the chain disc 2 during transportation.

[0028] Among them, such as Figure 14 The spacer ring 502 has an I-shaped structure, and its edge is engaged with the outer side of the corner elongated hole 401, preventing direct contact between the workpiece carrier plate 4 and the outer expansion plate 5. Secondly, the I-shaped end of the spacer ring 502 acts as a gap, reducing the contact area subject to friction when the outer expansion plate 5 rotates relative to the workpiece carrier plate 4, facilitating smoother rotation and better maintaining the horizontal state of the workpiece carrier plate 4. This ensures that the double U-shaped suspension rod 1 remains relatively stable and vertical during transitions between horizontal and sloping sections, preventing tilting and subsequent reverting to verticality, further guaranteeing the stability of the workpiece on the chain conveyor 2. Considering current practical needs, the above-described embodiments adopted in this application are not limited to this scope of protection. Various modifications made within the knowledge of those skilled in the art, without departing from the concept of this application, still fall within the protection scope of this invention.

Claims

1. A lightweight conveyor with reverse self-adjusting workpiece verticality, characterized in that: The system includes a conveying unit with a control center and a track that matches the conveying unit. The track includes a guide rail (601) and an auxiliary rail (301) located above one side of the guide rail (601). The guide rail (601) and the auxiliary rail (301) are fixedly connected by multiple corner plates. The conveying unit includes a double U-shaped lifting rod (1). The upper end of the double U-shaped lifting rod (1) is connected to a chain disc (2) via a bearing. The upper end of the chain disc (2) has multiple mounting holes arranged in a circular array. The lower end of the double U-shaped lifting rod (1) is fixedly connected to a workpiece carrier plate (4). The workpiece carrier plate (4) has two outer expansion plates (5). The workpiece carrier plate (4) has two corner elongated holes (401). (5) It is connected to the workpiece carrier plate (4) by two screws (501), and the screws (501) move through the corresponding corner elongated hole (401). The screws (501) are fitted with a spacer ring (502). The spacer ring (502) is directly opposite the corner elongated hole (401), and the two ends of the spacer ring (502) are in contact with the two outer expansion plates (5). The two outer expansion plates (5) are provided with sprockets at their lower ends. The sprockets include multiple guide double wheels (6) connected by universal joints. The lower ends of the two outer expansion plates (5) correspond to the two laterally distributed guide double wheels (6), and the shafts of the two guide double wheels (6) move through the outer expansion plates (5). The guide double wheels (6) slide with the guide rail (601). The workpiece carrier plate (4) is rotatably connected to the front and rear outer ends of the workpiece carrier plate (4). The end of the connecting rod away from the workpiece carrier plate (4) is connected to the adjusting wheel (3) through the bearing. One of the adjusting wheels (3) slides in match with the auxiliary rail (301). The double U-shaped lifting rod (1) is provided with an inclination sensing rod (7). The inclination sensing rod (7) is connected to the control center signal.

2. A lightweight conveyor with reverse self-adjusting workpiece verticality according to claim 1, characterized in that: The two adjustment wheels (3) are symmetrical about the axis of the workpiece carrier plate (4).

3. A lightweight conveyor with reverse self-adjusting workpiece verticality according to claim 1, characterized in that: Both of the corner holes (401) are arc-shaped towards the center of the workpiece carrier plate (4), and the edges of both ends of the corner holes (401) are semi-circular, and the center of the edge of one corner hole (401) falls at the center of the semi-circle above the other corner hole (401).

4. A lightweight conveyor with reverse self-adjusting workpiece verticality according to claim 1, characterized in that: The tilt sensing rod (7) includes a vertical rod (72) fixedly embedded inside the double U-shaped lifting rod (1) and a horizontal shoulder rod (71) fixedly connected to the top of the vertical rod (72). The horizontal shoulder rod (71) and the vertical rod (72) are interconnected. Both ends of the horizontal shoulder rod (71) are fixedly extended to the outside of the double U-shaped lifting rod (1), and the horizontal shoulder rod (71) corresponds to and is parallel to the upper end of the workpiece carrier plate (4).

5. A lightweight conveyor with reverse self-adjusting workpiece verticality according to claim 4, characterized in that: Two light sensors (701) symmetrical about the vertical rod (72) are installed on the top of the horizontal shoulder rod (71). Light guide plates (73) are fixedly embedded at both ends of the horizontal shoulder rod (71), and the light guide plates (73) are located below the central axis of the horizontal shoulder rod (71).

6. A lightweight conveyor with reverse self-adjusting workpiece verticality according to claim 5, characterized in that: The vertical rod (72) and the light guide plate (73) are filled with black liquid. The liquid level of the black liquid is flush with the center line of the horizontal shoulder rod (71). The horizontal shoulder rod (71) is made of opaque material, and the light guide plate (73) is made of transparent material. The top of the light guide plate (73) is lower than the center line of the horizontal shoulder rod (71).

7. A lightweight conveyor with reverse self-adjusting workpiece verticality according to claim 6, characterized in that: An annular groove is carved in the middle of the inner wall of the corner elongated hole (401). A self-undulating lubricating strip (8) is embedded in the annular groove. The self-undulating lubricating strip includes a soft connecting layer (82) fixedly connected to the inner wall of the annular groove, a plurality of graphite pillars (83) that move through the soft connecting layer (82), and a plurality of magnetic plates (81) fixedly attached to the soft connecting layer (82) facing the inner wall of the annular groove. The soft connecting layer (82) is made of elastic material, and the plurality of graphite pillars (83) are fixedly connected to the corresponding magnetic plates (81).

8. A lightweight conveyor with reverse self-adjusting workpiece verticality according to claim 7, characterized in that: The spacer ring (502) has an I-shaped structure, and both ends of the spacer ring (502) are located outside the corner elongated hole (401). An iron sheet layer (503) is fixedly embedded in the middle of the spacer ring (502), and there is a mutual attraction between the iron sheet layer (503) and the magnetic plate (81).

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