A transmission and flat transport device

Abstract

The present application belongs to the technical field of automatic production line, and in particular, the present application relates to a transmission mechanism and a flat carrying device. The transmission mechanism comprises a crank, a swing rod and a connecting rod. The first end of the crank is used for hinged connection on a base body, the second end of the crank is hinged connected with the first end of the connecting rod, and the second end of the connecting rod is used for transmission. The first end of the swing rod is used for hinged connection on the base body, the second end of the swing rod is hinged connected with the middle end of the connecting rod, and a spacing is arranged between the first end of the swing rod and the first end of the crank. The flat carrying device comprises a static beam frame, a dynamic beam frame, a follow-up mechanism, a power element and the transmission mechanism, and is used for flat carrying of materials on the static beam frame. The present application can solve the problem of high energy consumption caused by lifting action during material carrying, and is particularly suitable for steel rolling production line, especially rod and tube production line. The structure is ingenious, carrying is reliable, flat carrying is achieved, and energy consumption is low.

Description

Technical Field

[0001] This invention belongs to the field of automated production line technology. Specifically, this invention relates to a transmission mechanism and a flat conveying device. Background Technology

[0002] For automated production lines (especially bar and tube production lines), there is always a lifting process during material handling, accompanied by a lowering process. For example, in the patent application document with application number 202020502706.9, authorization announcement date of February 5, 2021, and invention titled "Guiding Device for Hot-Rolled Steel Pipes," a guiding device for handling hot-rolled steel pipes is disclosed, including a first slide rail, a guide rail, a second slide rail, and a lifting and conveying device; one side of the first slide rail is fixedly connected to the guide rail, and the other side faces an upward angle; the guide rail... The device includes two supporting walls and multiple locking blocks, which are evenly fixed above each supporting wall and correspond to each other on the two supporting walls. One side of the second slide rail is fixedly connected to the guide rail, and the other side of the second slide rail faces diagonally downward. The lifting and conveying device is located between the two supporting walls of the guide rail. The lifting and conveying device includes a motor, a boom, a load-bearing beam, and multiple locking blocks. The output shaft of the motor is fixedly connected to one end of the boom, and the other end of the boom is hinged to the bottom end of the load-bearing beam. Multiple locking blocks are evenly installed on the load-bearing beam. The hot-rolled steel pipe handling described in this patent application involves lifting and lowering the boom. The lifting process is often energy-intensive, and how to reduce energy consumption during handling has become a problem that urgently needs to be solved in this field. Summary of the Invention

[0003] To address the above problems, the present invention provides a transmission mechanism and a flat conveying device, the technical solution of which is as follows:

[0004] A transmission mechanism includes a crank, a rocker arm, and a connecting rod; a first end of the crank is hinged to a base, a second end of the crank is hinged to a first end of the connecting rod, and the second end of the connecting rod is used for transmission; a first end of the rocker arm is hinged to the base, a second end of the rocker arm is hinged to the middle end of the connecting rod, and a gap is provided between the first end of the rocker arm and the first end of the crank.

[0005] The transmission mechanism described above is further preferably characterized in that: the length of the connecting rod is 5 times the length of the crank; the length of the rocker arm is 2.5 times the length of the crank; and the distance between the first end of the rocker arm and the first end of the crank is 2 times the length of the crank.

[0006] A straight conveying device includes a stationary beam frame, a moving beam frame, a follower mechanism, a power element, and a transmission mechanism; the transmission mechanism, the follower mechanism, and the power element are all mounted on the stationary beam frame; the second end of the connecting rod is hinged to the first end of the moving beam frame; the follower mechanism is hinged to the second end of the moving beam frame and the transmission mechanism respectively, for synchronizing the movement of the second end of the moving beam frame with the movement of the first end of the moving beam frame; the power element is connected to the first end of the crank, for driving the transmission mechanism to straight convey the material on the stationary beam frame through the moving beam frame.

[0007] The straight conveying device described above is further preferably characterized in that: the follower mechanism includes a follower rod, a pull rod, and a rocker arm; the first end of the follower rod is hinged to the stationary beam frame, the second end of the follower rod is hinged to the second end of the pull rod, and the first end of the pull rod is hinged to the second end of the swing rod; the first end of the rocker arm is hinged to the second end of the pull rod, and the second end of the rocker arm is hinged to the second end of the moving beam frame.

[0008] The straight conveying device described above is further preferably characterized in that: the follower mechanism includes a follower shaft, a pull rod, and a rocker arm; an arc-shaped groove is provided on the stationary beam, the shape of which is consistent with the movement trajectory of the second end of the rocker arm; the follower shaft is located within the arc-shaped groove and slides in cooperation with it; the first end of the pull rod is hinged to the second end of the rocker arm, and the second end of the pull rod is hinged to the follower shaft; the first end of the rocker arm is hinged to the second end of the pull rod, and the second end of the rocker arm is hinged to the second end of the moving beam.

[0009] The straight conveying device described above is further preferably characterized in that: the length of the follower rod is 2.5 times the length of the crank; the length of the rocker arm is 2.5 times the length of the crank; the first end of the crank, the first end of the rocker arm, and the first end of the follower rod are all located on the same straight line; the follower rod is arranged parallel to the rocker arm, the rocker arm is arranged parallel to the connecting rod, and the moving beam is arranged parallel to the tie rod.

[0010] The straight conveying device described above is further preferably configured such that there are two transmission mechanisms and two follower mechanisms, with each pair corresponding to the other and located on the left and right sides of the material conveying direction, respectively; the first ends of the two cranks are connected by a synchronous shaft, which is used to make the two transmission mechanisms move synchronously.

[0011] The straight conveying device described above is further preferably characterized in that: the moving beam frame includes a moving beam, a bottom beam, and uprights; the first end of the moving beam is hinged to the second end of the connecting rod, and the second end of the moving beam is hinged to the second end of the rocker arm; there are two moving beams, each corresponding to one of the two transmission mechanisms and the two follower mechanisms; the two moving beams are arranged in parallel, and a plurality of bottom beams are installed between the two moving beams, the bottom beams are arranged perpendicularly to the moving beams, and a plurality of uprights are installed on the bottom beams; the plurality of bottom beams are arranged at equal intervals, and the plurality of uprights are distributed in an array.

[0012] The straight conveying device described above is further preferably characterized in that: the length of the moving beam is not less than 5 times the length of the crank; and the spacing between adjacent columns along the length direction of the moving beam is 5 times the length of the crank, for synchronous material conveying.

[0013] The straight conveying device described above is further preferably characterized in that: the stationary beam frame includes transmission support columns and stationary beams; there are two transmission support columns, located on the left and right sides of the material conveying direction respectively; the two transmission support columns correspond one-to-one with the two transmission mechanisms and the two follower mechanisms; there are multiple stationary beams, which are arranged at equal intervals along the length of the bottom beam; the stationary beams are in the shape of an inverted U-shape and are used to hold the materials to be conveyed.

[0014] Analysis shows that, compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0015] In the transmission mechanism of the present invention, the form of crank rotation motion can be transformed into the form of a flat closed curve motion at the second end of the connecting rod. When applied to material handling, the material can be transported from one end to the other along the flat closed curve without having to lift it significantly, thereby saving energy consumption during lifting and reducing energy consumption during material handling.

[0016] In the straight conveying device of this invention, the follower mechanism and the transmission mechanism work together, and the moving beam can reciprocate along a flat closed curve to synchronously convey materials on the stationary beam. Furthermore, with the specific design of the crank, connecting rod, and swing arm, the moving beam can synchronously convey materials on the stationary beam along a D-shaped trajectory, solving the problem of high energy consumption caused by lifting movements during material handling. It is particularly suitable for steel rolling production lines, especially bar and tube production lines, featuring an ingenious structure, reliable material handling, straight conveying, and low energy consumption. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the straight conveying device of the present invention;

[0018] Figure 2 This is a schematic diagram of the straight conveying device of the present invention in a direction perpendicular to the material conveying direction;

[0019] Figure 3 This is a schematic diagram of the straight conveying device of the present invention along the material conveying direction;

[0020] Figure 4 This is a schematic diagram of the running trajectory of the straight conveying device of the present invention;

[0021] Figure 5 This is a schematic diagram of the moving beam frame of the present invention;

[0022] Figure 6 This is a schematic diagram of the static beam frame of the present invention;

[0023] Figure 7 This is a schematic diagram of the running trajectory of the second end of the connecting rod of the present invention.

[0024] In the diagram: 1-Material; 2-Moving beam frame; 3-Transmission mechanism; 4-Synchronous shaft; 5-Static beam frame; 6-Power element; 7-Crank; 8-Swing arm; 9-Connecting rod; 10-Tie rod; 11-Follower rod; 12-Rocker arm; 13-Moving beam; 14-Column; 15-Bottom beam; 16-Transmission support column; 17-Static beam; 18-First point; 19-Second point. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected" and "linked" used in this invention should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0027] Please refer to Figures 1 to 7 ,in, Figure 1 This is a schematic diagram of the straight conveying device of the present invention; Figure 2 This is a schematic diagram of the straight conveying device of the present invention in a direction perpendicular to the material conveying direction; Figure 3 This is a schematic diagram of the straight conveying device of the present invention along the material conveying direction; Figure 4 This is a schematic diagram of the running trajectory of the straight conveying device of the present invention; Figure 5 This is a schematic diagram of the moving beam frame of the present invention; Figure 6 This is a schematic diagram of the static beam frame of the present invention; Figure 7 This is a schematic diagram of the running trajectory of the second end of the connecting rod of the present invention.

[0028] like Figure 1 As shown, in one embodiment of the present invention, a transmission mechanism 3 is provided, including a crank 7, a rocker arm 8, and a connecting rod 9. In use, the first end of the crank 7 is hinged to a base, the second end of the crank 7 is hinged to the first end of the connecting rod 9, the first end of the rocker arm 8 is hinged to the base, a gap is provided between the first end of the rocker arm 8 and the first end of the crank 7, and the second end of the rocker arm 8 is hinged to the middle end of the connecting rod 9, which can be used for transmission.

[0029] In this embodiment, crank 7 can rotate around its first end. When crank 7 rotates, it can drive the pendulum 8 to swing around its first end via connecting rod 9. The movement of the first end of connecting rod 9 is restricted by the second end of crank 7, and the movement of the middle end of connecting rod 9 is restricted by the second end of pendulum 8. Thus, the movement trajectory of the second end of connecting rod 9 can form a flat closed curve, which can be applied to transmission. In this embodiment, the rotational motion of crank 7 can be transformed into the motion of the flat closed curve of the second end of connecting rod 9. When applied to material handling, material 1 can be transported from one end to the other along the flat closed curve without significant lifting, thereby saving energy consumption during lifting and reducing energy consumption during material handling.

[0030] like Figure 3 and Figure 7 As shown, in one embodiment of the present invention, the length of connecting rod 9 is 5 times the length of crank 7, the length of rocker arm 8 is 2.5 times the length of crank 7, and the distance between the first end of rocker arm 8 and the first end of crank 7 is 2 times the length of crank 7. When crank 7 rotates, the second end of connecting rod 9 can form a D-shaped motion trajectory, and the straight segment of the D-shape is parallel to the line connecting the first end of rocker arm 8 and the first end of crank 7. When applied to material 1 transportation, material 1 located on the curved segment can be lifted from the first point 18 to one end of the straight segment, and transported straight along one end of the straight segment to the other end of the straight segment, and then placed at the second point 19 on the curved segment. In this embodiment, the transmission mechanism 3 does not have a significant lifting action when applied to material 1 transportation (the lifting action only exists during the process from the first point 18 to the straight segment), has low energy consumption, and can realize the straight transportation of material 1.

[0031] Based on the aforementioned transmission mechanism 3, the present invention also provides a flat conveying device. Since the flat conveying device includes the transmission mechanism 3, it possesses all the advantages of the transmission mechanism 3.

[0032] like Figure 1 and Figure 3 As shown, in one embodiment of the present invention, the straight conveying device includes a stationary beam frame 5, a moving beam frame 2, a follower mechanism, a power element 6, and a transmission mechanism 3. Specifically, the transmission mechanism 3, the follower mechanism, and the power element 6 are all mounted on the stationary beam frame 5, and the second end of the connecting rod 9 is hinged to the first end of the moving beam frame 2. The follower mechanism is hinged to the second end of the moving beam frame 2 and the transmission mechanism 3, respectively, enabling the second end of the moving beam frame 2 to move synchronously with the first end of the moving beam frame 2 during conveying. The power element 6 is connected to the first end of the crank 7, and during conveying, it drives the transmission mechanism 3 to straighten and synchronously convey the material 1 on the stationary beam frame 5 through the moving beam frame 2.

[0033] In this embodiment, the first end of the moving beam 2 is hinged to the second end of the connecting rod 9, and the second end of the moving beam 2 is hinged to the follower mechanism. Under the synergistic action of the follower mechanism and the transmission mechanism 3, the moving beam 2 can reciprocate along a flat closed curve, synchronously transporting the material 1 on the stationary beam 5. Furthermore, with the specific design of the crank 7, connecting rod 9, and swing rod 8, the moving beam 2 can synchronously transport the material 1 on the stationary beam 5 along a D-shaped trajectory, solving the problem of high energy consumption caused by lifting motion during material 1 transport. It is particularly suitable for steel rolling production lines, especially bar and tube production lines, with a clever structure, reliable transport, straight transport, and low energy consumption.

[0034] like Figure 3 and Figure 4 As shown, in one embodiment of the present invention, the follower mechanism includes a follower element, a pull rod 10, and a rocker arm 12. The follower element is used to synchronize the movement of the first end of the pull rod 10 with the second end of the pull rod 10. Specifically, the follower element is movably connected to the stationary beam frame 5 and hinged to the second end of the pull rod 10. The first end of the pull rod 10 is hinged to the second end of the swing arm 8. The first end of the rocker arm 12 is hinged to the second end of the pull rod 10, and the second end of the rocker arm 12 is hinged to the second end of the moving beam frame 2. In this embodiment, the length of connecting rod 9 is 5 times the length of crank 7; the length of rocker arm 8 is 2.5 times the length of crank 7; the distance between the first end of rocker arm 8 and the first end of crank 7 is 2 times the length of crank 7; the length of rocker arm 12 is 2.5 times the length of crank 7; rocker arm 12 and connecting rod 9 are arranged in parallel; the moving beam frame 2 and tie rod 10 are arranged in parallel, which enables the moving beam frame 2 to transport the material 1 on the stationary beam frame 5 in a straight and synchronous manner along the D-shaped trajectory, thereby reducing the energy consumption when transporting the material 1.

[0035] In this invention, the follower mechanism can be implemented in various ways, as long as it ensures that the first end of the moving beam 2 moves in the same direction as the second end of the moving beam 2.

[0036] As one implementation of the follower mechanism, the follower element is a follower rod 11. Specifically, the follower mechanism includes a follower rod 11, a pull rod 10, and a rocker arm 12. The first end of the follower rod 11 is hinged to the stationary beam frame 5, and the second end of the follower rod 11 is hinged to the second end of the pull rod 10. The first end of the pull rod 10 is hinged to the second end of the swing rod 8. The first end of the rocker arm 12 is hinged to the second end of the pull rod 10, and the second end of the rocker arm 12 is hinged to the second end of the moving beam frame 2. In this embodiment, the length of the follower rod 11 is 2.5 times the length of the crank 7. The first ends of the crank 7, the swing rod 8, and the follower rod 11 are all located on the same straight line, and the follower rod 11 and the swing rod 8 are arranged parallel to each other. Driven by the power element 6, the moving beam frame 2 can reciprocate along a D-shaped trajectory, synchronously transporting multiple materials 1 placed on the stationary beam frame 5.

[0037] As another implementation of the follower mechanism, the follower element is a follower shaft. Specifically, the follower mechanism includes a follower shaft, a pull rod 10, and a rocker arm 12. The stationary beam frame 5 has an arc-shaped groove, the shape of which matches the motion trajectory of the second end of the rocker arm 8. The follower shaft is located within the arc-shaped groove and slides within it. The first end of the pull rod 10 is hinged to the second end of the rocker arm 8, and the second end of the pull rod 10 is hinged to the follower shaft. The first end of the rocker arm 12 is hinged to the second end of the pull rod 10, and the second end of the rocker arm 12 is hinged to the second end of the moving beam frame 2. Driven by the power element 6, the moving beam frame 2 can reciprocate along a D-shaped trajectory, synchronously transporting multiple materials 1 placed on the stationary beam frame 5.

[0038] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, there are two transmission mechanisms 3 and two follower mechanisms, each corresponding to one another, located on the left and right sides of the material 1 transport direction. When transporting material 1, the first ends of the two cranks 7 are connected via a synchronous shaft 4, thereby enabling the two transmission mechanisms 3 to operate synchronously. In this embodiment, the presence of two transmission mechanisms 3 and two follower mechanisms, operating on both sides of the material 1 transport direction, ensures that material 1 experiences balanced force during transport, facilitating the transport of long and narrow materials 1 (such as bars or pipes on a steel rolling production line).

[0039] like Figure 5As shown, in one embodiment of the present invention, the moving beam frame 2 includes a moving beam 13, a bottom beam 15, and columns 14. The first end of the moving beam 13 is hinged to the second end of the connecting rod 9, and the second end of the moving beam 13 is hinged to the second end of the rocker arm 12. In this embodiment, there are two moving beams 13, each corresponding to one of the two transmission mechanisms 3 and two follower mechanisms. The two moving beams 13 are arranged in parallel, and multiple bottom beams 15 are installed between the two moving beams 13. The bottom beams 15 are perpendicular to the moving beams 13, and multiple columns 14 are installed on the bottom beams 15. The multiple bottom beams 15 are arranged at equal intervals, and the multiple columns 14 are arranged in an array, enabling the synchronous transport of multiple materials 1.

[0040] Furthermore, in this embodiment, the length of the moving beam 13 is not less than 5 times the length of the crank 7, which ensures that the moving beam frame 2 can simultaneously transport at least two or more materials 1 in each motion cycle. In addition, along the length direction of the moving beam 13, the spacing between adjacent columns 14 is 5 times the length of the crank 7, which enables continuous transport of one material 1 on the stationary beam frame 5 and simultaneous transport of different materials 1 on the stationary beam frame 5.

[0041] like Figure 6 As shown, in one embodiment of the present invention, the stationary beam frame 5 includes transmission support columns 16 and stationary beams 17. There are two transmission support columns 16, located on the left and right sides respectively in the material 1 transport direction. The two transmission support columns 16 correspond one-to-one with two transmission mechanisms 3 and two follower mechanisms, providing installation positions for the transmission mechanisms 3 and follower mechanisms. There are multiple stationary beams 17, arranged at equal intervals along the length of the bottom beam 15, facilitating the holding of long and narrow materials 1 (e.g., bars, pipes). The multiple stationary beams 17 can be connected as a single unit by a base rod and fixed to the two transmission support columns 16. As one possible implementation, the stationary beams 17 are inverted U-shapes, with the horizontal surface at the top used to hold the material 1 to be transported. This design is simple, robust, and reliable, facilitating the acquisition and placement of the material 1 by the moving beam frame 2.

[0042] like Figures 1 to 7 As shown, the working process of the flat conveying device of the present invention will be described in detail below:

[0043] Taking one embodiment of the present invention as an example, the straight conveying device includes a stationary beam frame 5, a moving beam frame 2, a follower mechanism, a power element 6, and a transmission mechanism 3. Specifically, the transmission mechanism 3 includes a crank 7, a rocker arm 8, and a connecting rod 9; the follower mechanism includes a follower rod 11, a pull rod 10, and a rocker arm 12; the moving beam frame 2 includes a moving beam 13, a bottom beam 15, and a column 14; the stationary beam frame 5 includes a transmission support column 16 and a stationary beam 17; and the power element 6 is a geared motor. The transmission mechanism 3, the follower mechanism, the transmission support column 16, and the moving beam 13 are all in pairs, located on the left and right sides of the material conveying direction 1, respectively. The first ends of the two cranks 7 are synchronously driven by a synchronous shaft 4. Preferably, the top of the column 14 is provided with a groove for accommodating materials, and the stationary beam 17 is also provided with a groove to prevent materials from rolling.

[0044] The first end of crank 7 is hinged to the transmission support column 16, and the second end of crank 7 is hinged to the first end of connecting rod 9. Power element 6 is mounted on the transmission support column 16 and connected to the first end of crank 7, driving crank 7 to rotate around the first end. The first end of rocker arm 8 is hinged to the transmission support column 16, and the second end of rocker arm 8 is hinged to the middle end of connecting rod 9. The second end of connecting rod 9 is hinged to moving beam 13. There is a gap between the first end of rocker arm 8 and the first end of crank 7. The first end of follower rod 11 is hinged to the transmission support column 16, and the second end of follower rod 11 is hinged to the second end of pull rod 10. The first end of pull rod 10 is hinged to the second end of rocker arm 8. The first end of rocker arm 12 is hinged to the second end of pull rod 10, and the second end of rocker arm 12 is hinged to the second end of moving beam 13. The first end of crank 7, the first end of rocker arm 8, and the first end of follower rod 11 are all located on the same straight line; follower rod 11 is arranged parallel to rocker arm 8, rocker arm 12 is arranged parallel to connecting rod 9, and moving beam 13 is arranged parallel to pull rod 10.

[0045] Taking the length of crank 7 as a reference, if the length of crank 7 is R, then the length of connecting rod 9 is 5R; the length of rocker arm 8 is 2.5R; the distance between the first end of rocker arm 8 and the first end of crank 7 is 2R; the length of follower rod 11 is 2.5R; the length of rocker arm 12 is 2.5R; and the distance between adjacent columns 14 on the moving beam frame 2 is 5R. If two columns 14 are set along the length direction of moving beam 13, the length of moving beam 13 is 6R; if three columns 14 are set along the length direction of moving beam 13, the length of moving beam 13 is 12R; if four columns 14 are set along the length direction of moving beam 13, the length of moving beam 13 is 16R or more, and so on, which facilitates spatial structure design. Preferably, the length of tie rod 10 is 12R, and the length of moving beam 13 is 12R. It is worth noting that, in this invention, the length of the rod refers to the length of the hinge connection at the first end and the hinge connection at the second end; the middle end of the connecting rod 9 refers to the midpoint of the line connecting the first hinge connection and the second end of the connecting rod 9.

[0046] When transporting material 1, the geared motor drives the transmission mechanism 3 to operate. Under the combined action of the transmission mechanism 3 and the follower mechanism, the moving beam 2 reciprocates along a D-shaped trajectory, which can slightly lift material 1 from the stationary beam 17 and then transport it along a straight path, achieving straight and synchronous transport of material 1. This invention involves very small lifting motion when transporting material 1; the lifting height is sufficient to move it away from the stationary beam 17 without friction. Therefore, very little work is done to overcome potential energy, almost only translational work is done, resulting in low transport energy consumption. It is particularly suitable for steel rolling production lines, especially bar and tube production lines. It features an ingenious structure, reliable transport positioning, straight transport, and low energy consumption.

[0047] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A straight conveying device, characterized in that, include: Static beam frame, moving beam frame, follower mechanism, power element and transmission mechanism; The transmission mechanism includes a crank, a rocker arm, and a connecting rod; The first end of the crank is hinged to the base, and the second end of the crank is hinged to the first end of the connecting rod, the second end of the connecting rod being used for transmission. The first end of the swing arm is hinged to the base, the second end of the swing arm is hinged to the middle end of the connecting rod, and there is a gap between the first end of the swing arm and the first end of the crank. The length of the connecting rod is 5 times the length of the crank; The length of the pendulum is 2.5 times the length of the crank; The distance between the first end of the swing arm and the first end of the crank is twice the length of the crank; The transmission mechanism, the follower mechanism, and the power element are all mounted on the static beam frame; The second end of the connecting rod is hinged to the first end of the moving beam frame; The follower mechanism is hinged to the second end of the moving beam and the transmission mechanism respectively, and is used to make the second end of the moving beam move synchronously with the first end of the moving beam; The power element is connected to the first end of the crank and is used to drive the transmission mechanism to straightly transport the material on the stationary beam through the moving beam; The follower mechanism includes a follower rod, a pull rod, and a rocker arm; The first end of the follower rod is hinged to the static beam frame, the second end of the follower rod is hinged to the second end of the pull rod, and the first end of the pull rod is hinged to the second end of the swing rod. The first end of the rocker arm is hinged to the second end of the pull rod, and the second end of the rocker arm is hinged to the second end of the moving beam frame; There are two transmission mechanisms and two follower mechanisms, one for each of them, located on the left and right sides of the material handling direction respectively. The first ends of the two cranks are connected by a synchronous shaft, which is used to synchronize the operation of the two transmission mechanisms. The movable beam frame includes a movable beam, a bottom beam, and columns; The first end of the moving beam is hinged to the second end of the connecting rod, and the second end of the moving beam is hinged to the second end of the rocker arm; There are two moving beams, each corresponding to one of the two transmission mechanisms and the two follower mechanisms; The two moving beams are arranged in parallel, and a plurality of bottom beams are installed between the two moving beams. The bottom beams are arranged perpendicular to the moving beams, and a plurality of columns are installed on the bottom beams. The multiple bottom beams are arranged at equal intervals, and the multiple columns are distributed in an array; When the crank rotates, the second end of the connecting rod can form a D-shaped motion trajectory, and the straight section of the D-shape is parallel to the line connecting the first end of the swing arm and the first end of the crank. During transportation, the material located on the curved section can be lifted from the first point to one end of the straight section, and then transported straight along one end of the straight section to the other end of the straight section, and then placed at the second point on the curved section.

2. The straight conveying device according to claim 1, characterized in that: The length of the follower rod is 2.5 times the length of the crank; The length of the rocker arm is 2.5 times the length of the crank arm; The first end of the crank, the first end of the rocker arm, and the first end of the follower rod are all located on the same straight line; The follower rod is arranged parallel to the swing rod, the rocker arm is arranged parallel to the connecting rod, and the moving beam frame is arranged parallel to the tie rod.

3. The straight conveying device according to claim 1, characterized in that: The length of the moving beam is not less than 5 times the length of the crank; Along the length of the moving beam, the spacing between adjacent columns is 5 times the length of the crank, for synchronous material handling.

4. The straight conveying device according to claim 1, characterized in that: The static beam frame includes a transmission support column and a static beam; There are two transmission support columns, located on the left and right sides of the material handling direction, respectively; The two transmission support columns correspond one-to-one with the two transmission mechanisms and the two follower mechanisms; There are multiple static beams, which are arranged at equal intervals along the length of the bottom beam; The static beam is an inverted U-shape, used to hold materials to be transported.

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