Light conveyor capable of reversely and automatically adjusting workpiece perpendicularity

Abstract

The invention relates to a light conveyor capable of reversely and automatically adjusting workpiece perpendicularity, which is applied to the related field of conveying equipment, through the arrangement of a workpiece carrying plate with a two-way center corner long hole, in the transfer process, the workpiece carrying plate can adapt to the angle along with the amplitude of uphill and downhill, so that the workpiece carrying plate is always in a vertical state; the situation that the workpieces fall off accidentally at the conveying section is effectively avoided, in addition, in the workpiece transferring process, the operation condition of the workpiece carrying plate can be monitored in real time through the arrangement of the inclined sensing rod, the situation that the workpieces are stuck in the operation process and the perpendicularity of the workpiece carrying plate is abnormal can be conveniently found in time, and compared with the prior art, the workpiece conveying device has the advantage that the workpiece conveying efficiency is improved. Abnormality can be conveniently found in time, the situation that the conveyor still continuously conveys workpieces under the abnormal condition is effectively avoided, and the stability of workpiece conveying is greatly improved.

Description

Technical Field

[0001] The invention relates to a reverse self-adjusting workpiece vertical light conveyor, in particular to a reverse self-adjusting workpiece vertical light conveyor applied in the field of conveying equipment. Background Art

[0002] The three-track ground conveyor consists of a reverse conveyor chain and a stand. The conveyor chain provides power and the stand is supported on the auxiliary rails on both sides. The existing three-track ground conveyor is suitable for larger workpieces and for situations where the workpieces need to be able to rotate. For small workpieces with small volume and low rotation requirements, the three-track ground conveyor has a high cost for conveying the workpieces.

[0003] To solve the above problems, Chinese patent CN102826332B discloses a chain conveyor, which can be used for the transportation of small workpieces. However, the angle of the chain conveyor is relatively fixed. Due to the complex and unstable workshop environment, the conveyor may go up and down slopes during the transportation process, causing the small workpieces to move with the inclination angle generated when going up and down slopes, and may even fall, affecting the normal transportation 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 workpieces are easily displaced due to the inclination in the uphill and downhill conveying sections, and in serious cases, the workpieces may fall.

[0005] In order to solve the above problems, the present invention provides a reverse self-adjusting workpiece vertical light conveyor, including a conveying unit with a control center and a track matched with the conveying unit, the track including 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 a plurality of angle plates, the upper end of the double U-shaped hanger is connected to a chain plate through a bearing, the upper end of the chain plate is provided with a plurality of mounting holes distributed in a circular array, the lower end of the double U-shaped hanger is fixedly connected to a workpiece carrier plate, two outer expansion plates are arranged outside the workpiece carrier plate, and the workpiece carrier plate Two long corner holes are drilled on the top, and two outer expansion plates are connected to the outside of the workpiece carrier plate through two screw rods, and the screw rods movably penetrate the corresponding long corner holes. The outer sleeve of the screw rod is provided with a spacer ring, which is directly opposite to the long corner hole, and the two ends of the spacer ring are respectively in contact with the two outer expansion plates. The lower ends of the two outer expansion plates are provided with sprockets, and the sprockets include a plurality of guide double wheels connected by universal joints. The lower ends of the two outer expansion plates correspond to the two laterally distributed guide double wheels, and the shafts of the two guide double wheels movably penetrate the outer expansion plates, and the guide double wheels match and slide with the guide rails; The front and rear outer ends of the workpiece carrier are rotatably connected with connecting rods, and the end away from the workpiece carrier is connected with an adjusting wheel through a bearing. One of the adjusting wheels slides in match with the auxiliary rail. A tilt sensing rod is arranged on the double U-shaped suspension rod, and the tilt sensing rod is connected with the control center signal.

[0006] In the above-mentioned reverse self-adjusting workpiece vertical light conveyor, by setting a workpiece carrier with a bidirectional center corner long hole, during the transportation process, the workpiece carrier can adapt its angle according to the amplitude of the ups and downslope, so that it is always in a vertical state, effectively avoiding the accidental falling of the workpiece in this transportation section.

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

[0008] As a further improvement of the present application, the two corner long holes are both arc-shaped toward the middle of the workpiece carrier plate, and the edges at both ends of the corner long holes are semicircular, and the center of the edge of one corner long hole falls at the center of the semicircle above the other corner long hole.

[0009] As a further improvement of the present application, the tilt sensing rod includes a vertical rod fixedly embedded in the double U-shaped hanger and a horizontal shoulder rod fixedly connected to the top of the vertical rod. The horizontal shoulder rod and the vertical rod are connected to each other. Both ends of the horizontal shoulder rod are fixedly extended outside the double U-shaped hanger, 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 the present application, two light sensors symmetrically about the vertical rod are installed on the top of the horizontal shoulder rod, and light guide plates are fixedly embedded at both ends of the horizontal shoulder rod, and the light guide plates are located below the central axis of the horizontal shoulder rod.

[0011] As a further improvement of the present 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 axis of the horizontal shoulder rod.

[0012] As another improvement of the present application, an annular groove is excavated in the middle of the inner wall of the corner long hole, and a self-undulating lubricating strip is embedded in the annular groove. The self-undulating lubricating strip includes a soft connecting layer fixedly connected to the inner wall of the annular groove, a plurality of graphite columns movably penetrating the soft connecting layer, and a plurality of magnetic plates fixedly attached to the soft connecting layer facing the inner wall of the annular groove. The soft connecting layer is made of elastic material, and the plurality of graphite columns are respectively fixedly connected to the corresponding magnetic plates.

[0013] As another improved supplement of the present application, the spacer ring is an I-shaped structure, and the two ends of the spacer ring are located outside the corner long hole, an iron sheet layer is fixedly embedded in the middle of the spacer ring, and there is a mutual adsorption force between the iron sheet layer and the magnetic moving sheet.

[0014] In summary, through the setting of the workpiece carrier with a bidirectional center corner long hole, during the transportation process, the workpiece carrier can adapt its angle to the amplitude of the ups and downslope, so that it is always in a vertical state, effectively avoiding the accidental falling of the workpiece in the transportation section. In addition, during the workpiece transportation process, through the setting of the tilt sensing rod, the operation of the workpiece carrier can be monitored in real time, which is convenient for timely detection of jams in the operation of the workpiece and abnormal verticality of the workpiece carrier. Compared with the existing technology, it is convenient to detect abnormalities in time, effectively avoiding the situation where the conveyor continues to transport workpieces under abnormal circumstances, and greatly improving the stability of workpiece transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the first embodiment of the present application when in use; Figure 2 This is a partial stereogram of the first embodiment of the present application when in use; Figure 3 This is a three-dimensional diagram of the first embodiment of the present application; Figure 4 A three-dimensional view of a workpiece carrier portion of the first embodiment of the present application; Figure 5 An exploded view of a workpiece carrier portion of the first embodiment of the present application; Figure 6 This is a front view of the first embodiment of the present application when transporting a workpiece horizontally; Figure 7 This is a front view of the first embodiment of the present application when transporting a workpiece uphill; Figure 8 A three-dimensional view of a workpiece carrier portion of the first embodiment of the present application; Fig. 9 This is a front view of the tilt sensing rod according to the first embodiment of the present application; Fig.10 A side view of a tilt sensing rod according to a first embodiment of the present application; Fig.11 This is a front view of the tilt sensing rod when the workpiece carrier plate is not vertical and tilted in the first embodiment of the present application; Fig.12 A front view of a workpiece carrier portion of a second embodiment of the present application; Fig.13 A partial perspective view of a self-undulating lubricating strip according to a second embodiment of the present application; Fig.14 This is a front view of the spacer ring of the second embodiment of the present application.

[0016] Description of the numbers in the figure: 1 double U-shaped suspension rod, 2 chain plate, 3 adjusting wheel, 301 auxiliary rail, 4 workpiece carrier plate, 401 corner long hole, 5 external expansion plate, 501 screw rod, 502 spacer ring, 503 iron sheet layer, 6 guide double wheels, 601 guide rail, 7 tilt sensing rod, 71 horizontal shoulder rod, 72 vertical rod, 73 light guide plate, 701 light sensor, 8 self-undulating lubricating strip, 81 magnetic moving plate, 82 soft connection layer, 83 graphite column. DETAILED DESCRIPTION

[0017] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0018] The first implementation method: Figure 1-2 A light conveyor for reverse self-adjusting the verticality of workpieces is shown, including a conveying unit with a control center and a track matching the conveying unit, the track including 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 hanger 1 is connected to a chain plate 2 through a bearing, and the upper end of the chain plate 2 is provided with multiple mounting holes distributed in a circular array. In actual use, a bracket can be installed on the mounting hole for placing small workpieces according to the size and shape of the actual workpiece. The chain plate 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 elaborated on here.

[0019] like Figure 3-4 The lower end of the double U-shaped suspension rod 1 is fixedly connected to a workpiece carrier plate 4, and two external expansion plates 5 are arranged outside the workpiece carrier plate 4. The two external expansion plates 5 are in an inverted Y shape as a whole. Two long corner holes 401 are chiseled on the workpiece carrier plate 4. The two external expansion plates 5 are connected to the outside of the workpiece carrier plate 4 through two screws 501, and the screws 501 movably penetrate the corresponding long corner holes 401. The outer sleeve of the screw 501 is provided with a spacer ring 502, which is opposite to the long corner hole 401, and the two ends of the spacer ring 502 are respectively in contact with the two external expansion plates 5. The lower ends of the two external expansion plates 5 are provided with sprockets, and the sprockets include a plurality of guide double wheels 6 connected by universal joints. The lower ends of the two external expansion plates 5 correspond to the two laterally distributed guide double wheels 6, and the shafts of the two guide double wheels 6 movably penetrate the external expansion plate 5, and the guide double wheels 6 slide in matching with the guide rails 601; The front and rear outer ends of the workpiece carrier 4 are rotatably connected to connecting rods, and the end away from the workpiece carrier 4 is connected to an adjusting wheel 3 through a bearing, one of the adjusting wheels 3 slides in matching with the auxiliary rail 301. When in use, when encountering an uphill or downhill section, the adjusting wheel 3 matching with the auxiliary rail 301 restricts one corner of the workpiece carrier 4 by the auxiliary rail 301, so that it cannot adapt to the angle change of the guide rail 601 together with the outward expansion plate 5. At this time, due to the pulling force of the outward expansion plate 5 moving with the guide double wheels 6, under the action of the corner long hole 401, the outward expansion plate 5 rotates with the screw 501 away from the sliding adjusting wheel 3 as the axis, so that the two are relatively displaced, and then in this case, the workpiece carrier 4 maintains a horizontal state, and the double U-shaped hanger 1 connected to it remains vertical, so that the workpiece on the chain plate 2 is vertical and is not easily displaced due to the inclination of the uphill and downhill sections. Compared with the existing technology, the stability of small workpiece transportation is greatly improved.

[0020] In the above-mentioned reverse self-adjusting workpiece vertical light conveyor, by setting the workpiece carrier 4 with a bidirectional center corner long hole 401, during the transportation process, the workpiece carrier 4 can adapt its angle according to the amplitude of the ups and downslope, so as to always be in a vertical state, effectively avoiding the workpiece from accidentally falling in this transportation section.

[0021] The two adjusting wheels 3 are symmetrical about the center axis of the workpiece carrier 4. One adjusting wheel 3 cooperates with the auxiliary rail 301 to adjust the angle between the workpiece carrier 4 and the outward expansion plate 5, so that the workpiece carrier 4 always maintains a horizontal state and is not easily displaced with the outward expansion plate 5 and the guide double wheels 6 on uphill and downhill sections. The other adjusting wheel 3 can be used as a counterweight to make the center of gravity of the workpiece carrier 4 located in the middle. When the outward expansion plate 5 is relatively displaced with it, it is not easy to cause smooth rotation due to center offset.

[0022] The two long corner holes 401 are both arc-shaped toward the middle of the workpiece carrier 4, and the edges at both ends of the long corner holes 401 are semicircular, and the center of the edge of one long corner hole 401 falls at the center of the semicircle above the other long corner hole 401, so that no matter which side is rotated, the rotation direction can be completely symmetrical, so that the relative position change of the workpiece carrier 4 and the outer expansion plate 5 is constant except for the direction, so that the workpiece carrier 4 can maintain a horizontal state.

[0023] The double U-shaped suspension rod 1 is provided with a tilt sensing rod 7, which is connected to the control center signal. Figure 8-9The tilt sensing rod 7 includes a vertical rod 72 fixedly embedded in the double U-shaped suspension 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 connected to each other. Both ends of the horizontal shoulder rod 71 are fixedly extended to the outside of the double U-shaped suspension 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. The left and right ends of the horizontal shoulder rod 71 are fixedly embedded with light guide plates 73, 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 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, and the top of the light guide plate 73 is lower than the central axis of the horizontal shoulder rod 71.

[0024] like Fig. 9 When the workpiece carrier plate 4 is in a horizontal state, the liquid surface of the black liquid is simultaneously located above the two light guide plates 73, which are completely covered by the black liquid. At this time, the two light sensors 701 cannot receive light signals. Fig.11 When the workpiece carrier 4 tilts abnormally and fails to remain vertical as expected, the tilt sensing rod 7 tilts accordingly. At this time, the light guide sheet 73 on the tilted side is still covered by the black liquid, while the other light guide sheet 73 partially leaks out. The greater the tilt angle of the workpiece carrier 4, the more the light guide sheet 73 leaks out. At this time, external light can enter the horizontal shoulder rod 71 along the light guide sheet 73, so that the two light sensors 701 receive light signals and generate data. The data on the light sensor 701 close to the light guide sheet 73 on one side through which light passes is larger. Based on this moment, the horizontal situation of the workpiece carrier 4 is monitored. When an abnormality occurs, it is easy to be discovered in time, effectively avoiding the situation where small workpieces continue to be transported in this case, reducing the displacement of small workpieces caused by tilting, and even the probability of them falling and being lost.

[0025] At the same time, according to the size of the data on the two light sensors 701, the specific tilt of the rough workpiece carrier 4 can also be effectively judged, which is convenient for the staff to perform maintenance faster.

[0026] In summary, through the setting of the workpiece carrier 4 with the bidirectional center corner long hole 401, during the transportation process, the workpiece carrier 4 can adapt its angle according to the amplitude of the ups and downslope, so as to always be in a vertical state, effectively avoiding the accidental falling of the workpiece in the transportation section. In addition, during the workpiece transportation process, through the setting of the tilt sensing rod 7, the operation status of the workpiece carrier 4 can be monitored in real time, so as to facilitate timely detection of jams in the operation of the workpiece and abnormal verticality of the workpiece carrier 4. Compared with the prior art, it is convenient to detect abnormalities in time, effectively avoiding the situation where the conveyor continues to transport workpieces under abnormal circumstances, and greatly improving the stability of workpiece transportation.

[0027] The second implementation method: Based on the first embodiment, this embodiment adds a self-undulating lubricating strip 8, and the rest of the parts are consistent with the first embodiment.

[0028] Figure 12-13 As shown, an annular groove is bored in the middle of the inner wall of the corner long hole 401, and a self-undulating lubricating strip 8 is embedded in the annular groove. The self-undulating lubricating strip includes a soft connection layer 82 fixedly connected to the inner wall of the annular groove, a plurality of graphite columns 83 movably penetrating the soft connection layer 82, and a plurality of magnetic moving pieces 81 fixedly attached to the soft connection layer 82 toward the inner wall of the annular groove. The soft connection layer 82 is made of elastic material, and the plurality of graphite columns 83 are respectively fixedly connected to the corresponding magnetic moving pieces 81, and the two ends of the spacer ring 502 are located outside the corner long hole 401, and an iron sheet layer 503 is fixedly embedded in the middle of the spacer ring 502. There is a mutual adsorption force between the iron sheet layer 503 and the magnetic moving piece 81. When the outer expansion plate 5 rotates relative to the workpiece carrier plate 4, the spacer ring 502 moves along the corner long hole 40 1 synchronous moving cabinet, at this time, due to the adsorption force, the magnetic moving piece 81 at the corresponding position of the iron sheet layer 503 will continuously move toward the spacer ring 502, so that the corresponding soft connection layer 82 is adaptively deformed, and the graphite column 83 also moves toward the spacer ring 502 and contacts with the spacer ring 502. With the movement of the spacer ring 502, friction occurs between the two, thereby achieving the effect of hard lubrication. With the movement of the spacer ring 502, multiple magnetic moving pieces 81 move toward the spacer ring 502 in turn, thereby causing multiple soft connection layers 82 to appear undulating, so that the spacer 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, and it is not easy to get stuck, and it is not easy to affect the stability of the workpiece on the chain plate 2 during transportation.

[0029] Among them, Fig.14 First, the spacer ring 502 is an I-shaped structure, and its edge is stuck on the outside of the mouth of the corner long hole 401, so that the workpiece carrier 4 and the outer expansion plate 5 are not in direct contact. Secondly, the I-shaped end of the spacer ring 502 is used as a spacer, so that when the outer expansion plate 5 rotates relative to the workpiece carrier 4, the contact surface subjected to friction is relatively small, which facilitates smoother rotation and facilitates the workpiece carrier 4 to better maintain a horizontal state, so that when transitioning from a horizontal section to an uphill and downhill section, the double U-shaped hanger 1 can remain vertical relatively stably, and is not prone to a change process from skewing to vertical, further ensuring the stability of the workpiece on the chain plate 2.

[0030] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A light conveyor that can self-adjust the vertical position of the workpiece in reverse direction. Features: The invention comprises a conveying unit with a control center and a track matched with the conveying unit, wherein the track comprises a guide rail (601) and an auxiliary rail (301) located above one side of the guide rail (601), wherein the guide rail (601) and the auxiliary rail (301) are fixedly connected via a plurality of angle plates, wherein the upper end of the double U-shaped suspension rod (1) is connected to a chain plate (2) via a bearing, wherein the upper end of the chain plate (2) is provided with a plurality of mounting holes distributed in a circular array, wherein the lower end of the double U-shaped suspension rod (1) is fixedly connected to a workpiece carrier (4), wherein the workpiece carrier (4) is provided with two external expansion plates (5), wherein the workpiece carrier (4) is provided with two long corner holes (401), wherein the two external expansion plates (5) are connected via two screws. The rod (501) is connected to the outside of the workpiece carrier plate (4), and the screw rod (501) movably passes through the corresponding corner long hole (401), the outer sleeve of the screw rod (501) is provided with a spacer ring (502), the spacer ring (502) is directly opposite to the corner long hole (401), and the two ends of the spacer ring (502) are respectively in contact with two outer expansion plates (5), and the lower ends of the two outer expansion plates (5) are provided with sprockets, and the sprockets include a plurality of guide double wheels (6) connected by universal joints, the lower ends of the two outer expansion plates (5) correspond to two laterally distributed guide double wheels (6), and the shafts of the two guide double wheels (6) movably pass through the outer expansion plates (5), and the guide double wheels (6) match and slide with the guide rails (601); The front and rear outer ends of the workpiece carrier (4) are rotatably connected to connecting rods, and the ends of the connecting rods away from the workpiece carrier (4) are connected to adjusting wheels (3) through bearings, one of the adjusting wheels (3) slides in matching relationship with the auxiliary rail (301), and a tilt sensing rod (7) is provided on the double U-shaped suspension rod (1), and the tilt sensing rod (7) is connected to a control center signal.

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

3. A light conveyor with reverse self-adjusting workpiece verticality according to claim 1, Features: The two corner long holes (401) are both arc-shaped toward the middle of the workpiece carrier plate (4), and the edges at both ends of the corner long holes (401) are both semicircular, and the center of the edge of one corner long hole (401) falls at the center of the semicircle above the other corner long hole (401).

4. A light conveyor with reverse self-adjusting workpiece verticality according to claim 1, Features: The tilt sensing rod (7) comprises a vertical rod (72) fixedly embedded in the double U-shaped suspension 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) being interconnected, both ends of the horizontal shoulder rod (71) being fixedly extended outside the double U-shaped suspension rod (1), and the horizontal shoulder rod (71) corresponding to and parallel to the upper end of the workpiece carrier plate (4).

5. A light conveyor capable of self-adjusting the verticality of workpieces in reverse according to claim 4, Features: Two light sensors (701) symmetrically arranged about the vertical rod (72) are mounted on the top of the horizontal shoulder rod (71), and light guide plates (73) are fixedly inlaid on both left and right 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 light conveyor capable of self-adjusting the vertical position of workpieces in reverse according to claim 5, Features: The vertical rod (72) and the light guide plate (73) are filled with black liquid, the liquid surface of the black liquid is flush with the center line of the horizontal shoulder rod (71), the horizontal shoulder rod (71) is made of an opaque material, the light guide plate (73) is made of a transparent material, and the top of the light guide plate (73) is lower than the center axis of the horizontal shoulder rod (71).

7. A light conveyor capable of self-adjusting the verticality of workpieces in reverse according to claim 6, Features: An annular groove is bored in the middle of the inner wall of the corner long hole (401), and a self-elevating lubricating strip (8) is embedded in the annular groove. The self-elevating lubricating strip comprises a soft connection layer (82) fixedly connected to the inner wall of the annular groove, a plurality of graphite columns (83) movably penetrating the soft connection layer (82), and a plurality of magnetic moving sheets (81) fixedly attached to the soft connection layer (82) toward the inner wall of the annular groove. The soft connection layer (82) is made of elastic material, and the plurality of graphite columns (83) are respectively fixedly connected to corresponding magnetic moving sheets (81).

8. A light conveyor capable of self-adjusting the verticality of workpieces in reverse according to claim 7, Features: The embedded ring (502) is an I-shaped structure, and the two ends of the embedded ring (502) are located outside the corner long hole (401). An iron sheet layer (503) is fixedly embedded in the middle of the embedded ring (502), and there is a mutual adsorption force between the iron sheet layer (503) and the magnetic moving sheet (81).

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