A reversing conveying device for transmission line

Abstract

The present invention discloses a reversing conveying device applied to a transmission line body, relates to the field of material conveying, and comprises: a first roller conveying line body and a second roller conveying line body, a frame body is placed directly below the first roller conveying line body, a reversing conveying unit for transferring materials is arranged inside the frame body, the first roller conveying line body and the second roller conveying line body are vertically distributed, and the reversing conveying unit is used to transfer materials on the first roller conveying line body to the second roller conveying line body; and also comprises: a driving unit and a transmission unit. The present invention can transfer materials from the first roller conveying line body to the second roller conveying line body smoothly and labor-savingly through the driving unit, the transmission unit and the reversing conveying unit, and will not cause damage to the base of the transferred materials.

Description

Technical Field

[0001] The invention relates to the field of material transportation, and in particular to a reversing transportation device applied to a transmission line body. Background Art

[0002] Conveyor lines include belt conveyor lines, roller conveyor lines and plate chain conveyor lines. Roller conveyor lines are suitable for conveying short distance and heavy materials. They have strong load-bearing capacity, simple structure and low maintenance cost.

[0003] Roller conveyor lines are often used for assembly lines of heavier products such as air conditioners and refrigerators. Such conveyor lines are equipped with maintenance lines, which are vertically distributed with the main line. If there are quality problems with the assembled products on the main line, they will be transferred to the maintenance line for replacement of parts. However, the existing transfer method is to manually push the products on the main line to the maintenance line. For example, some products (air conditioner outdoor unit production lines) are directly assembled on the cardboard packaging base. When transferring the products, manual work is required to push the products vigorously, which is extremely laborious. In addition, the cardboard packaging base at the bottom of the product can easily collide with the frame of the transmission line, causing damage. At the same time, the foam pad placed on the bottom layer of the cardboard packaging base will also be damaged. Summary of the invention

[0004] The object of the present invention is to provide a reversing conveying device applied to a transmission line body to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a reversing conveying device applied to a transmission line body, comprising: a first roller conveying line body and a second roller conveying line body, a frame body is placed directly below the first roller conveying line body, a reversing conveying unit for transferring materials is arranged inside the frame body, the first roller conveying line body and the second roller conveying line body are vertically distributed, and the reversing conveying unit is used to transfer materials on the first roller conveying line body to the second roller conveying line body;

[0006] It also includes: a driving unit, used to adjust the state of the reversing conveying unit, and the driving unit is located below the frame;

[0007] The transmission unit is used to drive the reversing conveying unit to transfer the material, and the transmission unit is arranged between the first roller conveying line body and the reversing conveying unit.

[0008] Preferably, the reversing conveying unit includes a plurality of load-bearing plates fixedly mounted on the top of the frame, the plurality of load-bearing plates are distributed in a straight line with equal intervals, and each of the load-bearing plates is located between two adjacent rollers in the first roller conveyor line body, and the upper end surface of the frame is also rotatably equipped with a plurality of groups of load-bearing cylinders distributed in a straight line with equal intervals, the number of the load-bearing cylinders in each group is two, the plurality of groups of load-bearing cylinders and the plurality of load-bearing plates are staggered, and each group of the load-bearing cylinders is located directly below the rollers in the first roller conveyor line body, and an extension component is also provided inside each of the load-bearing plates, that is, when the frame moves upward to its maximum value, the load-bearing cylinder will rest against the bottom of the roller of the first roller conveyor line body, and the load-bearing plate can rise upward through the gap between the first roller conveyor line bodies.

[0009] Preferably, the extension component includes support plates hingedly assembled on both sides of each of the load-bearing plates, a slide plate is arranged under each of the load-bearing plates, and the slide plate is slidably inserted into the interior of the frame, and one end of the support plate away from the load-bearing plate is hingedly assembled with a hinged arm at the upper end of the slide plate, a cylinder is fixedly arranged at the center of the bottom of the frame, and a first sliding plate is slidably assembled inside the cylinder, a support column sliding through the cylinder is fixedly arranged on the upper end of the first sliding plate, and a bracket is fixedly mounted between the bottom of each of the slide plates and the support column, a second spring is arranged between the top of the first sliding plate and the cylinder, and the second spring is movably mounted on the outside of the support column, when the load-bearing plate is stationary and the slide plate moves upward, the support plate can be unfolded by the hinged arm, and when the support plate is in the maximum unfolded state, the upper end surface of the support plate is parallel to the upper end surface of the load-bearing plate.

[0010] Preferably, the driving unit includes a fixing bracket fixedly mounted on the bottom of the frame, the fixing bracket is located below the cylinder, and a drag rod is slidably inserted into the fixing bracket and the cylinder together, the lower end of the drag rod is fixedly sleeved with a U-shaped plate, and a third spring is fixedly arranged between the U-shaped plate and the fixing bracket, and the third spring is distributed on the outside of the drag rod, and the outer surfaces of the two long sides of the U-shaped plate are slidably sleeved with a limit shell, and the interior of each of the limit shells is rotatably mounted with a transmission gear through a first rotating shaft, and the end surfaces of the two long sides of the U-shaped plate that are away from each other are fixedly provided with a plurality of meshing teeth distributed in a straight line and equidistantly, and the transmission gear is movably meshed with the meshing teeth, and a support seat is fixedly arranged between the two limit shells, and a reduction motor for driving the two transmission gears to rotate synchronously and in opposite directions is fixedly arranged on the support seat. By driving the two transmission gears to rotate synchronously and in opposite directions by the reduction motor, the U-shaped plate can be moved upward or downward.

[0011] Preferably, the elastic stiffness of the third spring is greater than the elastic stiffness of the second spring, that is, the elastic force generated by the compression of the third spring is greater than the elastic force generated by the compression of the second spring.

[0012] Preferably, each of the support plates is rotatably mounted with a plurality of short-axis rollers, when the support plates are flattened, the upper end horizontal planes of the plurality of short-axis rollers are higher than the upper end plane of the load-bearing plate, an empty slot is opened at the top center of each load-bearing plate, and two third rotating shafts are rotatably mounted inside the empty slot, a synchronous gear is fixedly mounted on the outer surface of each of the third rotating shafts, and a transmission toothed belt is arranged between the two synchronous gears, a third rotating shaft away from the second roller conveyor line body is mounted outside the empty slot, and a second gear is also fixedly mounted on the outer surface of the third rotating shaft, a plurality of equidistantly distributed ribs are fixedly mounted on the outer surface of the transmission toothed belt, and the ribs extend out of the upper end plane of the load-bearing plate, when the support plate is fully unfolded, the bottom of the conveyed object first contacts the ribs on the surface of the transmission toothed belt, and then contacts the short-axis rollers.

[0013] Preferably, the transmission unit includes a transmission box body fixedly mounted on the upper end portion of the first roller conveyor line body, and the transmission box body is located on a side of the first roller conveyor line body away from the second roller conveyor line body, and a second rotating shaft is rotatably mounted on the side of the transmission box body close to the second roller conveyor line body, and a plurality of first gears are rotatably sleeved on the outer surface of the second rotating shaft, and a second sliding plate distributed radially is slidably mounted inside each of the first gears, and a round bottom latch sliding through the first gear is fixedly mounted on an end surface of the second sliding plate close to the second rotating shaft, and a fourth spring is arranged on the other end surface of the second sliding plate, and a plurality of arc-shaped positioning grooves equidistantly distributed around the circumference are opened on the outer surface of the second rotating shaft, and the arc-shaped positioning grooves are movably assembled with the round bottom latch, the number of the first gears is consistent with the number of the bearing plates, and a limiting component is also arranged between the bearing plates and the second gears in the same group, and the interior of the transmission box body is essentially a stepping motor and a gear set, and the second rotating shaft is driven to rotate through the cooperation of the stepping motor and the gear set.

[0014] Preferably, the limiting component includes a sleeve fixedly mounted inside the load-bearing plate, and a dome guide column and a limiting rod are slidably mounted inside the sleeve, the dome guide column and the limiting rod are respectively located on the side of the sleeve facing the support plate and the second gear, the outer diameter of the dome guide column is larger than the outer diameter of the limiting rod, a first spring is fixedly arranged between an end surface of the dome guide column close to the limiting rod and the sleeve, and the first spring is distributed on the outside of the limiting rod, and a rubber column is fixedly arranged on one end of the limiting rod extending out of the sleeve, and only when the support plate is about to be fully unfolded, the end of the dome guide column will not be limited by the support plate, so that the limiting rod can be retracted into the inside of the sleeve under the action of the first spring, so that the limiting rod no longer presses against the second gear.

[0015] Preferably, an arc-shaped guide rail is fixedly mounted on one end of the second roller conveyor line body close to the first roller conveyor line body, and a plurality of small rollers are rotatably mounted inside the arc-shaped guide rail. The cooperation between the arc-shaped guide rail and the small rollers can improve the stability and smoothness of material transfer.

[0016] Preferably, a pressure plate is fixedly mounted inside each of the empty slots, and the pressure plate is mainly used to ensure that the ribs on the surface of the transmission belt can effectively contact the bottom of the material.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention can transfer materials from a first roller conveyor line body to a second roller conveyor line body smoothly and labor-savingly through a driving unit, a transmission unit and a reversing conveying unit, and will not cause damage to the base of the transferred material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a side view of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the arc guide rail and the small roller of the present invention;

[0022] Figure 4 It is a front cross-sectional view of the present invention;

[0023] Figure 5 For the present invention Figure 4 Enlarged view of point D in the middle;

[0024] Figure 6 This is a schematic diagram of the assembly structure of the limiting housing and the U-shaped plate of the present invention;

[0025] Figure 7 For the present invention Figure 6Enlarged view of point A in the middle;

[0026] Figure 8 This is a schematic diagram of the empty slot structure of the present invention;

[0027] Fig. 9 For the present invention Figure 8 Enlarged view of point B in the middle;

[0028] Fig.10 This is a schematic diagram of the structure of the third rotating shaft and the second gear of the present invention;

[0029] Fig.11 For the present invention Fig.10 Enlarged view of point C in the middle;

[0030] Fig.12 It is a structural schematic diagram of the support plate of the present invention in a closed state.

[0031] In the figure: 1, first roller conveyor line body; 2, second roller conveyor line body; 3, frame body; 4, first spring; 5, cylinder body; 6, first slide plate; 7, second spring; 8, support column; 9, bracket; 10, bearing cylinder; 11, fixed frame; 12, drag rod; 13, third spring; 14, U-shaped plate; 15, limit housing; 16, support seat; 17, first rotating shaft; 18, reduction motor; 19, slide plate; 20, support plate; 21, articulated arm ; 22. load-bearing plate; 23. transmission box body; 24. arc-shaped guide rail; 25. small roller; 26. second rotating shaft; 27. first gear; 28. empty slot; 29. ​​third rotating shaft; 30. second gear; 31. transmission toothed belt; 32. ribs; 33. pressure plate; 34. second sliding plate; 35. round bottom latch; 36. fourth spring; 37. arc-shaped positioning groove; 38. sleeve; 39. dome guide column; 40. limit rod; 41. short-axis roller. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figure 1-Figure 7, a reversing conveying device applied to a transmission line body in the figure comprises: a first roller conveying line body 1 and a second roller conveying line body 2, a frame body 3 is placed directly below the first roller conveying line body 1, a reversing conveying unit for transferring materials is arranged inside the frame body 3, the first roller conveying line body 1 and the second roller conveying line body 2 are vertically distributed, and the reversing conveying unit is used to transfer the materials on the first roller conveying line body 1 to the second roller conveying line body 2;

[0034] It also includes: a driving unit, used to adjust the state of the reversing conveying unit, and the driving unit is located below the frame 3;

[0035] The transmission unit is used to drive the reversing conveying unit to transfer the material. The transmission unit is arranged between the first roller conveying line body 1 and the reversing conveying unit.

[0036] The reversing conveying unit includes a plurality of load-bearing plates 22 fixedly mounted on the top of the frame 3, the plurality of load-bearing plates 22 are distributed in a straight line at equal intervals, and each load-bearing plate 22 is located between two rollers in the adjacent first roller conveyor line body 1, and the upper end surface of the frame 3 is also rotatably equipped with a plurality of groups of load-bearing cylinders 10 distributed in a straight line at equal intervals, and the number of each group of load-bearing cylinders 10 is two, and the plurality of groups of load-bearing cylinders 10 and the plurality of load-bearing plates 22 are staggered, and each group of load-bearing cylinders 10 is located directly below the rollers in the first roller conveyor line body 1, and an extension component is also provided inside each load-bearing plate 22, that is, when the frame 3 moves upward to the maximum value, the load-bearing cylinder 10 will be against the bottom of the roller of the first roller conveyor line body 1, and the load-bearing plate 22 can rise upward through the gap between the first roller conveyor line bodies 1.

[0037] The extension component includes a support plate 20 hingedly assembled on both sides of each load-bearing plate 22, a slide plate 19 is arranged under each load-bearing plate 22, and the slide plate 19 is slidably inserted in the interior of the frame 3, and the end of the support plate 20 away from the load-bearing plate 22 is hingedly assembled with a hinge arm 21 on the upper end of the slide plate 19, a cylinder 5 is fixedly arranged at the center of the bottom of the frame 3, and a first sliding plate 6 is slidably assembled inside the cylinder 5, and a support column 8 slidingly passing through the cylinder 5 is fixedly arranged on the upper end of the first sliding plate 6, and a bracket 9 is fixedly mounted between the bottom of each slide plate 19 and the support column 8, a second spring 7 is arranged between the top of the first sliding plate 6 and the cylinder 5, and the second spring 7 is movably mounted on the outside of the support column 8, when the load-bearing plate 22 is stationary and the slide plate 19 moves upward, the support plate 20 can be unfolded by the hinge arm 21, and when the support plate 20 is in the maximum unfolded state, the upper end surface of the support plate 20 is parallel to the upper end surface of the load-bearing plate 22.

[0038] The driving unit includes a fixing frame 11 fixedly mounted on the bottom of the frame 3, the fixing frame 11 is located below the cylinder 5, and a tow rod 12 is slidably inserted inside the fixing frame 11 and the cylinder 5, a U-shaped plate 14 is fixedly sleeved on the lower end of the tow rod 12, and a third spring 13 is fixedly arranged between the U-shaped plate 14 and the fixing frame 11, and the third spring 13 is distributed on the outside of the tow rod 12, and the outer surfaces of the two long sides of the U-shaped plate 14 are slidably sleeved with a limit shell 15, and a transmission gear is rotatably mounted inside each limit shell 15 through a first rotating shaft 17, and the end surfaces of the two long sides of the U-shaped plate 14 that are away from each other are fixedly provided with a plurality of teeth distributed in a straight line and equidistantly, and the transmission gear is movably meshed with the teeth, and a support seat 16 is fixedly mounted between the two limit shells 15, and a reduction motor 18 for driving the two transmission gears to rotate synchronously in the opposite direction is fixedly arranged on the support seat 16, and the U-shaped plate 14 can be moved upward or downward by driving the two transmission gears to rotate synchronously in the opposite direction by the reduction motor 18.

[0039] The elastic stiffness of the third spring 13 is greater than the elastic stiffness of the second spring 7 , that is, the elastic force generated by the compression of the third spring 13 is greater than the elastic force generated by the compression of the second spring 7 .

[0040] A plurality of short-axis rollers 41 are rotatably mounted inside each support plate 20. When the support plate 20 is flattened, the upper horizontal planes of the plurality of short-axis rollers 41 are higher than the upper end plane of the load-bearing plate 22. A slot 28 is provided at the top center of each load-bearing plate 22, and two third rotating shafts 29 are rotatably mounted inside the slot 28. A synchronous gear is fixedly mounted on the outer surface of each third rotating shaft 29, and a transmission toothed belt 31 is installed between the two synchronous gears. A third rotating shaft 29 away from the second roller conveyor line body 2 is mounted outside the slot 28, and a second gear 30 is also fixedly mounted on the outer surface of the third rotating shaft 29. A plurality of equidistantly distributed ribs 32 are fixedly mounted on the outer surface of the transmission toothed belt 31, and the ribs 32 extend out of the upper end plane of the load-bearing plate 22. When the support plate 20 is fully unfolded, the bottom of the conveyed object first contacts the ribs 32 on the surface of the transmission toothed belt 31, and then contacts the short-axis roller 41.

[0041] An arc guide rail 24 is fixedly mounted on one end of the second roller conveyor line body 2 close to the first roller conveyor line body 1, and a plurality of small rollers 25 are rotatably mounted inside the arc guide rail 24. The cooperation between the arc guide rail 24 and the small rollers 25 can improve the stability and smoothness of material transfer.

[0042] Working principle: When the product transmitted on the first roller conveyor line 1 needs to be transferred to the second roller conveyor line 2, the product is conveyed to the top of the frame 3 through the first roller conveyor line 1. At this time, the first roller conveyor line 1 is suspended, and the reduction motor 18 is started. The reduction motor 18 drives the two driving gears to move the U-shaped plate 14 upward. The U-shaped plate 14 moves the fixed frame 11 and the frame 3 upward through the third spring 13 until the upper end of the frame 3 is against the bottom of the roller of the first roller conveyor line 1. At this time, the product to be transferred has been lifted up by a number of load-bearing plates 22, and the U-shaped plate 14 continues to move upward, allowing the third spring 13 between the fixed frame 11 and the U-shaped plate 14 to move upward. 13 is compressed, and at the same time, the drag rod 12 is extended into the interior of the cylinder 5 to push the support column 8 upward until the support column 8 is moved up to the maximum value. At this time, the slide plate 19 can unfold the support plate 20 through the hinged arm 21. After unfolding, the product is supported by the short-axis roller 41 inside the support plate 20. The bottom of the product is mainly in contact with the short-axis roller 41. At the same time, the unfolded support plate 20 can also fill the gap between the two adjacent load-bearing plates 22, so as to ensure the stability of the product load. At this time, the staff can easily push the product in the direction of the second roller conveyor line 2, and under the guidance of the arc guide rail 24 and the small roller 25, it moves smoothly to the second roller conveyor line 2, thereby completing the reversing conveying.

[0043] In this solution, the gaps between the multiple load-bearing plates 22 are filled by the unfolded support plate 20, which can avoid the deformation of the bottom cardboard packaging carrying the product due to the heavy weight of the product, causing the corners of the cardboard packaging to be stuck between the gaps between adjacent load-bearing plates 22 during transportation.

[0044] Example 2: Please refer to Figure 7-Figure 12This embodiment is a further description of the first embodiment. The transmission unit includes a transmission box body 23 fixedly mounted on the upper end of the first roller conveyor line body 1, and the transmission box body 23 is located on the side of the first roller conveyor line body 1 away from the second roller conveyor line body 2, and the transmission box body 23 is rotatably mounted on the side close to the second roller conveyor line body 2 with a second rotating shaft 26, and the outer surface of the second rotating shaft 26 is rotatably sleeved with a plurality of first gears 27, and each first gear 27 is slidably mounted with a radially distributed second sliding plate 34 inside, and the second sliding plate 34 is fixedly mounted on one end surface close to the second rotating shaft 26. A round bottom latch 35 is provided which slides through the first gear 27, and a fourth spring 36 is provided on the other end face of the second sliding plate 34. A plurality of arc-shaped positioning grooves 37 which are equidistantly distributed on the circumference are provided on the outer surface of the second rotating shaft 26, and the arc-shaped positioning grooves 37 are movably assembled with the round bottom latch 35. The number of the first gears 27 is consistent with the number of the load-bearing plates 22. A limiting component is also provided between the load-bearing plates 22 and the second gear 30 in the same group. The interior of the transmission box body 23 is actually a stepping motor and a gear set, and the second rotating shaft 26 is driven to rotate through the cooperation of the stepping motor and the gear set.

[0045] The limiting component includes a sleeve 38 fixedly mounted inside the load-bearing plate 22, and a dome guide column 39 and a limiting rod 40 are slidably mounted inside the sleeve 38. The dome guide column 39 and the limiting rod 40 are respectively located on the side of the sleeve 38 facing the support plate 20 and the second gear 30. The outer diameter of the dome guide column 39 is larger than the outer diameter of the limiting rod 40. A first spring 4 is fixedly arranged between an end surface of the dome guide column 39 close to the limiting rod 40 and the sleeve 38, and the first spring 4 is distributed on the outside of the limiting rod 40. A rubber column is fixedly arranged on the end of the limiting rod 40 extending out of the sleeve 38.

[0046] A pressure plate 33 is fixedly mounted inside each empty slot 28 . The pressure plate 33 is mainly used to ensure that the ribs 32 on the surface of the transmission toothed belt 31 can effectively contact the bottom of the material.

[0047] In this embodiment: the product on the bearing plate 22 can be automatically conveyed to the second roller conveyor line 2, because the second rotating shaft 26 is in a state of continuous rotation with the first gear 27, when the bearing plate 22 is raised, the second gear 30 can be meshed with the first gear 27, but the second gear 30 cannot rotate due to the restriction of the limit rod 40, at this time, a large torsional force will be generated between the first gear 27 and the second rotating shaft 26, so that the round bottom latch 35 is separated from the arc-shaped positioning groove 37, and the second rotating shaft 26 is allowed to idle;

[0048] When the subsequent support plate 20 is unfolded and is about to be fully extended, the suppression on the dome guide column 39 will be gradually lifted. At this time, under the action of the first spring 4, the limit rod 40 can be retracted into the inside of the sleeve 38, so that the limit rod 40 no longer presses against the second gear 30. At this time, the second rotating shaft 26 can drive the second gear 30 to transmit through the first gear 27, and at the same time, the transmission toothed belt 31 can be transmitted. The friction between the transmission toothed belt 31 and the bottom of the product can be increased through the action of the ribs 32, and under the action of the short-axis roller 41, the product can be automatically driven to move in the direction of the second roller conveyor line 2, further improving convenience.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reversing conveying device applied to a transmission line, characterized in that: include: A first roller conveyor line body (1) and a second roller conveyor line body (2), wherein a frame body (3) is placed directly below the first roller conveyor line body (1), and a reversing conveying unit for transferring materials is arranged inside the frame body (3); Also includes: A driving unit, used for adjusting the state of the reversing conveying unit, wherein the driving unit is located below the frame (3); A transmission unit, used for driving the reversing conveying unit to transfer materials, the transmission unit being arranged between the first roller conveying line body (1) and the reversing conveying unit; The reversing conveying unit comprises a plurality of load-bearing plates (22) fixedly mounted on the top of the frame (3), the plurality of load-bearing plates (22) being distributed in a straight line at equal intervals, and each of the load-bearing plates (22) being located between two rollers in the adjacent first roller conveyor line body (1), and the upper end surface of the frame (3) (1) is also rotatably equipped with a plurality of groups of load-bearing cylinders (10) distributed in a straight line at equal intervals, the number of each group of load-bearing cylinders (10) being two, the plurality of groups of load-bearing cylinders (10) and the plurality of load-bearing plates (22) being distributed in an alternating manner, and each group of load-bearing cylinders (10) being located directly below the rollers in the first roller conveyor line body (1), and an extension component being further arranged inside each of the load-bearing plates (22), and when the frame (3) moves upward to a maximum value, the load-bearing cylinder (10) will abut against the bottom of the roller of the first roller conveyor line body (1); The extension component comprises a support plate (20) hingedly mounted on both sides of each of the load-bearing plates (22); a slide plate (19) is arranged below each of the load-bearing plates (22), and the slide plate (19) is slidably inserted into the interior of the frame (3); an end of the support plate (20) away from the load-bearing plate (22) is hingedly mounted with a hinged arm (21) at an upper end of the slide plate (19); a cylinder (5) is fixedly mounted at the center of the bottom of the frame (3), and a first sliding plate (6) is slidably mounted inside the cylinder (5); the first A support column (8) is fixedly provided at the upper end of the sliding plate (6) and slides through the cylinder (5), and a bracket (9) is fixedly provided between the bottom of each slide plate (19) and the support column (8). A second spring (7) is provided between the top of the first sliding plate (6) and the cylinder (5), and the second spring (7) is movably mounted on the outside of the support column (8). When the load-bearing plate (22) is stationary and the slide plate (19) moves upward, the support plate (20) can be unfolded by the hinged arm (21).

2. A reversing conveying device for a transmission line according to claim 1, characterized in that: The driving unit comprises a fixing frame (11) fixedly mounted on the bottom of the frame (3), the fixing frame (11) being located below the cylinder (5), and a towing rod (12) being slidably inserted into the fixing frame (11) and the cylinder (5), a U-shaped plate (14) being fixedly sleeved on the lower end of the towing rod (12), and a third spring (13) being fixedly arranged between the U-shaped plate (14) and the fixing frame (11), and the third spring (13) being distributed outside the towing rod (12), and the U-shaped plate (14) The outer surfaces of the two long sides of the U-shaped plate (14) are slidably sleeved with a limit housing (15), and a transmission gear is rotatably mounted inside each of the limit housings (15) via a first rotating shaft (17). The end surfaces of the two long sides of the U-shaped plate (14) that are away from each other are fixedly mounted with a plurality of teeth that are equidistantly distributed in a straight line, and the transmission gear is movably engaged with the teeth. A support seat (16) is fixedly mounted between the two limit housings (15), and a reduction motor (18) for driving the two transmission gears to rotate synchronously in opposite directions is fixedly mounted on the support seat (16).

3. A reversing conveying device for a transmission line according to claim 2, characterized in that: The elastic stiffness of the third spring (13) is greater than the elastic stiffness of the second spring (7).

4. The reversing conveying device for a transmission line according to claim 1, characterized in that: A plurality of short-axis rollers (41) are rotatably mounted inside each of the support plates (20); when the support plates (20) are flattened, the upper horizontal planes of the plurality of short-axis rollers (41) are higher than the upper end surface of the load-bearing plate (22); a hollow groove (28) is provided at the top center of each of the load-bearing plates (22); and two third rotating shafts (29) are rotatably mounted inside the hollow groove (28); a synchronous gear is fixedly mounted on the outer surface of each of the third rotating shafts (29); and a transmission toothed belt (31) is provided between the two synchronous gears; a third rotating shaft (29) away from the second roller conveyor line body (2) is mounted outside the hollow groove (28); and a second gear (30) is also fixedly mounted on the outer surface of the third rotating shaft (29); and a plurality of equidistantly distributed ribs (32) are fixedly mounted on the outer surface of the transmission toothed belt (31); and the ribs (32) extend out of the upper end plane of the load-bearing plate (22); The transmission unit comprises a transmission box (23) fixedly mounted on the upper end of the first roller conveyor line body (1), and the transmission box (23) is located on a side of the first roller conveyor line body (1) away from the second roller conveyor line body (2), and a second rotating shaft (26) is rotatably mounted on a side of the transmission box (23) close to the second roller conveyor line body (2), a plurality of first gears (27) are rotatably sleeved on the outer surface of the second rotating shaft (26), a radially distributed second sliding plate (34) is slidably mounted inside each of the first gears (27), and a sliding plate (34) is fixedly mounted on an end surface of the second sliding plate (34) close to the second rotating shaft (26). A round bottom latch (35) passes through the first gear (27), and a fourth spring (36) is arranged on the other end surface of the second sliding plate (34); a plurality of arc-shaped positioning grooves (37) equidistantly distributed on a circumference are formed on the outer surface of the second rotating shaft (26), and the arc-shaped positioning grooves (37) are movably assembled with the round bottom latch (35); the number of the first gears (27) is consistent with the number of the bearing plates (22); a limiting component is also arranged between the bearing plates (22) and the second gears (30) in the same group, so that when the bearing plates (22) are raised, the second gear (30) can be meshed with the first gear (27); The limiting component comprises a sleeve (38) fixedly mounted inside the load-bearing plate (22), and a dome guide column (39) and a limiting rod (40) are slidably mounted inside the sleeve (38), the dome guide column (39) and the limiting rod (40) are respectively located on one side of the sleeve (38) facing the support plate (20) and the second gear (30), the outer diameter of the dome guide column (39) is larger than the outer diameter of the limiting rod (40), a first spring (4) is fixedly arranged between an end surface of the dome guide column (39) close to the limiting rod (40) and the sleeve (38), and the first spring (4) is distributed outside the limiting rod (40), and a rubber column is fixedly arranged at one end of the limiting rod (40) extending out of the sleeve (38).

5. The reversing conveying device for a transmission line according to claim 1, characterized in that: An arc-shaped guide rail (24) is fixedly mounted on one end of the second roller conveyor line body (2) close to the first roller conveyor line body (1), and a plurality of small rollers (25) are rotatably mounted inside the arc-shaped guide rail (24).

6. The reversing conveying device for a transmission line according to claim 4, characterized in that: A pressure-bearing plate (33) is also fixedly mounted inside each of the empty slots (28).

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