Bar length screening device and working method thereof

Abstract

The present invention discloses a bar length screening device and a working method thereof, wherein the bar length screening device comprises a conveying component and a climbing conveying device, wherein the conveying component comprises a first conveying device and a second conveying device; the conveying component is suitable for conveying bars, wherein the bars have a separation station during the conveying process; the bars comprise long bars and short bars with their heads aligned; the first conveying device is suitable for conveying long bars and short bars before the separation station and conveying long bars along a first path after the bars are conveyed to the separation station; the climbing conveying device is suitable for lifting the tail of the long bars so that the long bars do not contact the second conveying device and the short bars contact the second conveying device under the conveyance of the first conveying device; the second conveying device is suitable for conveying short bars contacting the second conveying device along a second path. The present invention can automatically pick and reject short bars, reduce labor costs and the labor intensity of workers, improve the efficiency of picking, and avoid missing picking.

Description

Technical Field

[0001] The invention relates to a rod length screening device and a working method thereof. Background Art

[0002] At present, in the production process of bars, it is necessary to cut semi-finished continuous bars one by one into finished bars of specified length. However, in the process of cutting, some short bars whose length does not meet the requirements will be cut. In order to ensure the quality of the product, such short bars need to be picked and removed. At present, the picking and removal of the short bars is mainly done manually by workers, which not only increases the labor intensity of workers and increases labor costs, but also the efficiency of manual picking is low and there will be missed picking. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a bar length screening device, which can automatically pick out short bars, reduce labor costs and labor intensity of workers, improve picking efficiency and avoid missing bars.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a bar length screening device, which includes a conveying component and a climbing conveying device, wherein the conveying component includes a first conveying device and a second conveying device;

[0005] The conveying component is suitable for conveying rods, and the rods have a separation station during the conveying process; wherein the rods include long rods and short rods with their heads aligned;

[0006] The first conveying device is adapted to convey the long bar and the short bar before the separation station and to convey the long bar along the first path after the bars are conveyed to the separation station;

[0007] The climbing conveying device is adapted to lift the tail of the long bar at least during the process of the bar being in the separation station so that the long bar does not contact the second conveying device and the short bar contacts the second conveying device under the conveyance of the first conveying device;

[0008] The second conveying device is suitable for conveying the short bars in contact with the second conveying device along a second path when the bars arrive at the separation station; wherein the first path and the second path are in different directions.

[0009] A specific solution of the first conveying device is further provided, wherein the first conveying device comprises at least one set of conveying components and a first driving mechanism that drives the conveying components to move; wherein,

[0010] The conveying assembly comprises a main conveying wheel which can be driven to rotate, a rotatable slave conveying wheel, and a conveying belt connected between the main conveying wheel and the slave conveying wheel and suitable for carrying the bar;

[0011] The first driving mechanism is directly or indirectly connected to the main conveying wheel to drive the main conveying wheel to rotate.

[0012] A specific solution of the second conveying device is further provided, wherein the second conveying device comprises a second driving mechanism and at least one conveying roller suitable for carrying the rod and being driven to rotate;

[0013] The second driving mechanism is connected to the conveying roller and is suitable for driving the conveying roller to rotate so as to convey the rod material carried on the conveying roller.

[0014] A specific structure of the conveying roller is further provided, wherein a spiral groove adapted to the diameter of the rod so as to fit the short rod is provided on the outer periphery of the conveying roller, and the spiral groove is used to drive the short rod to move along the axial direction of the conveying roller when the conveying roller is driven to rotate to convey the short rod.

[0015] A specific structure of the climbing conveying device is further provided, wherein the climbing conveying device comprises a driving wheel, a driven wheel, a transmission chain and a climbing drive mechanism; wherein,

[0016] The transmission chain is connected to the driving wheel and the driven wheel;

[0017] The climbing drive mechanism is connected to the driving wheel and is suitable for driving the driving wheel to rotate, thereby driving the transmission chain to move;

[0018] The transmission chain has an upper chain portion, at least a portion of which forms a rising conveying portion inclined upward along a conveying direction of the transmission chain so as to lift the tail of the long bar during the conveying process of the long bar.

[0019] Furthermore, the transmission chain is connected with a plurality of baffles and a plurality of limit strips; wherein,

[0020] A plurality of the limit bars are sequentially arranged along the movement path of the transmission chain, and a receiving groove suitable for receiving the tail of the long bar is formed between any two adjacent limit bars;

[0021] The plurality of baffles are arranged in sequence along the movement path of the transmission chain and are adapted to abut against the tail of the long bar carried on the upper chain portion to prevent the long bar from moving in the axial direction of the long bar; wherein,

[0022] Among the baffles moved onto the upper chain portion, there is no gap between any two adjacent baffles in the axial direction of the rod.

[0023] Furthermore, the bar length screening device further comprises a discharge conveying device adapted to receive the short bars sent away by the second conveying device;

[0024] The climbing conveying device is arranged between the second conveying device and the unloading conveying device;

[0025] The climbing conveying device is provided with a passage for the short bars to pass through.

[0026] A specific solution of the unloading and conveying device is further provided, wherein the unloading and conveying device comprises a lifting and conveying mechanism and a unloading and conveying mechanism; wherein,

[0027] The lifting and conveying mechanism is slidably connected to the frame in a vertical direction and has an ascending position and a descending position during the sliding process. The lifting and conveying mechanism is suitable for sliding to the ascending position to receive the short bars delivered by the second conveying device;

[0028] The unloading conveying mechanism is connected to the frame, and is suitable for receiving the short bars on the lifting conveying mechanism and moving to convey the unloading of the short bars when the lifting conveying mechanism slides to the descending position.

[0029] A specific solution of the lifting and conveying mechanism and the unloading and conveying mechanism is further provided, wherein the lifting and conveying mechanism comprises a lifting seat, a lifting drive mechanism, a roller drive mechanism and at least two rollers; wherein,

[0030] The lifting seat is slidably connected to the frame along the vertical direction;

[0031] The roller is rotatably connected to the lifting seat and is suitable for receiving the short bars sent by the second conveying device;

[0032] The lifting drive mechanism is connected to the lifting seat and is used to drive the lifting seat to lift and slide;

[0033] The roller driving mechanism is connected to at least part of the rollers and is adapted to drive the rollers connected thereto to rotate so as to convey the short rods carried on the rollers;

[0034] The unloading conveying mechanism includes an unloading driving mechanism, at least two main unloading wheels, sub-unloading wheels corresponding to the main unloading wheels one by one, and unloading belts corresponding to the main unloading wheels and the sub-unloading wheels respectively; wherein,

[0035] The main unloading wheel and the secondary unloading wheel are respectively rotatably connected to the frame;

[0036] The unloading belt is connected to the corresponding main unloading wheel and the corresponding slave unloading wheel and is suitable for receiving the short bar on the roller when the lifting seat is lowered into place;

[0037] The unloading belt and the roller are arranged at intervals from each other;

[0038] The unloading drive mechanism is connected to the main unloading wheel and is used to drive the main unloading wheel to rotate and then drive the unloading belt to move to transport the short bars on the unloading belt.

[0039] The present invention also provides a working method of the bar length screening device, the method comprising the steps of:

[0040] S1: the first conveying device conveys the long bars and the short bars before the separation station and moves them toward the separation station;

[0041] S2: the climbing conveyor device lifts the tail of the long bar so that the long bar does not contact the second conveyor device when passing through the separation station and the short bar contacts the second conveyor device when being conveyed by the first conveyor device;

[0042] S3: The first conveying device conveys the long bar along a first path after the long bar is conveyed to the separation station, and the second conveying device conveys the short bar in contact with the long bar along a second path when the short bar arrives at the separation station; wherein the first path and the second path are in different directions.

[0043] After adopting the above technical scheme, the first conveying device conveys the long bar and the short bar before the separation station and moves toward the separation station; then the climbing conveying device lifts the tail of the long bar so that the long bar does not contact the second conveying device in the process of passing through the separation station and the short bar contacts the second conveying device under the conveyance of the first conveying device; then the first conveying device conveys the long bar along the first path after the long bar is conveyed to the separation station, and the second conveying device conveys the short bar in contact with it to the lifting and conveying mechanism along the second path when the short bar arrives at the separation station; wherein, the first path and the second path are in different directions; then the lifting and conveying mechanism receives the short bar sent by the second conveying device, and conveys the short bar it receives to move completely to the lifting and conveying mechanism, and then the lifting and conveying mechanism slides to the lowered position; then the unloading conveying mechanism receives the short bar on the lifting and conveying mechanism and moves to unload the short bar during the process of the lifting and conveying mechanism sliding to the lowered position. The device can automatically separate the short bars from the long bars, and then pick and remove the short bars, thereby reducing labor costs and workers' labor intensity, improving picking efficiency, and avoiding missing bars.

[0044] Among them, when the climbing conveyor device lifts the tail of the long bar, the head of the long bar is carried on the first conveyor device, and the first conveyor device and the climbing conveyor device jointly convey the long bar to move, so that the long bar does not contact the second conveyor device when passing through the separation station; and because the short bar is short in length, the tail of the short bar will not be carried on the climbing conveyor device, so the short bar is conveyed by the first conveyor device until it contacts the second conveyor device. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of the rod length screening device of the present invention;

[0046] Figure 2 It is a schematic structural diagram of the first conveying device and the second conveying device of the present invention;

[0047] Figure 3 It is a structural schematic diagram of the conveying roller of the present invention;

[0048] Figure 4 It is a structural schematic diagram of the climbing conveying device of the present invention;

[0049] Figure 5 It is a front view of the climbing conveying device of the present invention;

[0050] Figure 6 It is a structural schematic diagram of the transmission chain of the present invention;

[0051] Figure 7 It is a partial detailed view of the transmission chain of the present invention;

[0052] Figure 8 A top view of the transmission chain of the present invention;

[0053] Fig. 9 It is a structural schematic diagram of the tensioning device of the present invention;

[0054] Fig.10 It is a structural schematic diagram of the unloading and conveying device of the present invention;

[0055] Fig.11 It is a front view of the unloading and conveying device of the present invention. DETAILED DESCRIPTION

[0056] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0057] Embodiment 1: Figures 1 to 11 As shown, a bar length screening device comprises a conveying component and a climbing conveying device 300, wherein the conveying component comprises a first conveying device 100 and a second conveying device 200;

[0058] The conveying component is suitable for conveying rods, and the rods have a separation station during the conveying process; wherein the rods include long rods and short rods with their heads aligned;

[0059] The first conveying device 100 is suitable for conveying the long bar and the short bar before the separation station and conveying the long bar along the first path after the bar is conveyed to the separation station;

[0060] The climbing conveying device 300 is adapted to lift the tail of the long bar at least during the process of the bar being in the separation station so that the long bar does not contact the second conveying device 200 and the short bar contacts the second conveying device 200 under the conveyance of the first conveying device 100;

[0061] The second conveying device 200 is suitable for conveying the short bars in contact with the second conveying device 200 along the second path when the bars arrive at the separation station; wherein, the first path and the second path are in different directions, so that the long bars and the short bars are separated, and the short bars can be picked and removed, which reduces the labor cost and the labor intensity of the workers, improves the efficiency of picking, and avoids missing. Specifically, the first path is perpendicular to the second path; the bar length screening device also includes a frame 1, and the first conveying device 100, the second conveying device 200 and the climbing conveying device 300 are all connected to the frame 1. More specifically, the long bars return to the first conveying device 100 after passing through the separation station; long bars are bars with a length greater than a set value, and short bars are bars with a length less than or equal to a set value. In this embodiment, after the climbing conveying device 300 lifts the tail of the long bar, the head of the long bar is carried on the first conveying device 100, and the first conveying device 100 and the climbing conveying device 300 jointly convey the long bar to move so that the long bar does not contact the second conveying device 200 when passing through the separation station; and since the short bar is short in length, the tail of the short bar will not be carried on the climbing conveying device 300, so the short bar is conveyed by the first conveying device 100 to contact the second conveying device 200.

[0062] like Figures 1 to 3 As shown, the first conveying device 100 has, for example but not limited to, the following structure, which includes at least one set of conveying components and a first driving mechanism 2 that drives the conveying components to move; wherein,

[0063] The conveying assembly comprises a main conveying wheel 3 and a secondary conveying wheel 4, and a conveying belt 5 connected between the main conveying wheel 3 and the secondary conveying wheel 4 and suitable for carrying the rods;

[0064] The first driving mechanism 2 is directly or indirectly connected to the main conveying wheel 3 to drive the main conveying wheel 3 to rotate, thereby driving the conveyor belt 5 to move to convey the short bars and long bars; specifically, the main conveying wheel 3 and the slave conveying wheel 4 are respectively rotatably connected to the frame 1.

[0065] like Figures 1 to 3 As shown, the second conveying device 200 is, for example but not limited to, the following structure, which includes a second driving mechanism 6 and at least one conveying roller 7 suitable for carrying the bar;

[0066] The second driving mechanism 6 is connected to the conveying roller 7 and is suitable for driving the conveying roller 7 to rotate so as to convey the rod material carried on the conveying roller 7; in this embodiment, the conveying roller 7 is rotatably connected to the frame 1, and the conveying roller 7 and the conveyor belt 5 are spaced apart from each other;

[0067] The conveying roller 7 includes a tapered portion 9 and a columnar portion 10 which are sequentially arranged along the conveying direction of the first conveying device 100; wherein the tapered portion 9 gradually becomes larger along the conveying direction of the first conveying device 100, and the upper end of the front end of the tapered portion 9 is lower than the upper end of the conveying belt 5, so that the short bars on the conveying belt 5 can be smoothly moved to the conveying roller 7, and the upper end of the outer peripheral portion of the columnar portion 10 is higher than the upper end of the conveying belt 5;

[0068] In this embodiment, all the main conveying wheels 3 are connected to a rotating shaft and are rotatably connected to the frame 1 through the rotating shaft. The first driving mechanism 2 includes a first motor, which is connected to the main conveying wheel 3 through a chain drive; the second driving mechanism 6 includes a second motor corresponding to the conveying roller 7 one by one, and the second motor is connected to the corresponding conveying roller 7 through a chain drive.

[0069] like Figure 3 As shown, a spiral groove 8 adapted to the diameter of the rod so as to fit the short rod is provided on the outer periphery of the conveying roller 7. The spiral groove 8 is used to drive the short rod to move along the axial direction of the conveying roller 7 when the conveying roller 7 is driven to rotate to convey the short rod.

[0070] like Figure 1 , 4 As shown in Figure 9, the climbing conveying device 300 is, for example but not limited to, the following structure, which includes a driving wheel 11, a driven wheel 12, a transmission chain 13 and a climbing drive mechanism 15; wherein,

[0071] The transmission chain 13 is connected to the driving wheel 11 and the driven wheel 12;

[0072] The climbing drive mechanism 15 is connected to the driving wheel 11 and is suitable for driving the driving wheel 11 to rotate, thereby driving the transmission chain 13 to move;

[0073] The transmission chain 13 has an upper chain portion 16, and at least a portion of the upper chain portion 16 forms a rising conveying portion 21 that is inclined upward along the conveying direction of the transmission chain 13 so that the tail of the long bar is lifted during the conveying process of the long bar; specifically, the driving wheel 11 and the driven wheel 12 are respectively rotatably connected to the frame 1, and the transmission chain 13 also has a lower chain portion 17. The frame 1 is also connected to a supporting bridge 14, and the supporting bridge 14 is connected to the frame 1 and is suitable for supporting the upper chain portion 16 so that at least a portion of the upper chain portion 16 forms the rising conveying portion 21.

[0074] Specifically, the support bridge 14 includes a rising bridge portion 18, a transition bridge portion 19 and a descending bridge portion 20. After the support bridge 14 lifts the upper chain portion 16, the upper chain portion 16 forms a rising conveying portion 21 corresponding to the rising bridge portion 18, a transition conveying portion 22 corresponding to the transition bridge portion 19, and a descending conveying portion 23 corresponding to the descending bridge portion 20.

[0075] like Figures 4 to 9 As shown, the transmission chain 13 may be connected with a plurality of baffles 24 and a plurality of limit strips 25; wherein,

[0076] The plurality of limit bars 25 are sequentially arranged along the movement path of the transmission chain 13, and a receiving groove suitable for receiving the tail of the long bar is formed between any two adjacent limit bars 25;

[0077] The plurality of baffles 24 are arranged in sequence along the movement path of the transmission chain 13 and are adapted to resist the tail of the long bar carried on the upper chain portion 16 to prevent the long bar from moving in the axial direction of the long bar; wherein,

[0078] Among the baffles 24 moved onto the upper chain portion 16, there is no gap between any two adjacent baffles 24 in the axial direction of the rod; specifically, the baffles 24 are tilted in the conveying direction of the transmission chain 13 so that among any two adjacent baffles 24 moved onto the upper chain portion 16, a portion of one baffle 24 overlaps a portion of the other baffle 24.

[0079] Specifically, the transmission chain 13 includes at least one base belt 26 and a plurality of base plates 27; wherein,

[0080] The base belt 26 is connected to the driving wheel 11 and the driven wheel 12;

[0081] The substrates 27 are arranged in sequence along the extension direction of the base tape 26 and connected to the base tape 26;

[0082] The baffles 24 and the limiting strips 25 correspond to the substrates 27 one by one and are connected to the corresponding substrates 27 respectively.

[0083] In this embodiment, the climbing conveying device 300 further includes two tensioning devices 400, the driving wheel 11 is rotatably connected to the frame 1 through one of the tensioning devices 400, and the driven wheel 12 is rotatably connected to the frame 1 through the other tensioning device 400; wherein the tensioning device 400 includes at least one tensioning mechanism, and the tensioning mechanism is, for example but not limited to, the following structure, which includes:

[0084] A tensioning seat 28, wherein the tensioning seat 28 is slidably connected to the frame 1, and the driving wheel 11 and the driven wheel 12 are respectively rotatably connected to the corresponding tensioning seat 28;

[0085] A screw rod 29, wherein the screw rod 29 is threadedly connected to the frame 1, and one end of the screw rod 29 is rotatably connected to the tensioning seat 28, so that the tensioning seat 28 is driven to slide on the frame 1 by screwing the screw rod 29, thereby driving the driving wheel 11 or the driven wheel 12 connected to the tensioning seat 28 to press against the transmission chain 13, thereby tensioning the transmission chain 13;

[0086] A nut 30 is threadedly connected to the screw rod 29 and is suitable for being screwed to abut against the frame 1 when the tensioning seat 28 slides into place so as to lock the screw rod 29 and the tensioning seat 28.

[0087] like Figure 1 , 10 As shown in FIG. 11 , the bar length screening device may further include a discharge conveying device 500 suitable for receiving the short bars sent away by the second conveying device 200;

[0088] The climbing conveying device 300 is arranged between the second conveying device 200 and the unloading conveying device 500;

[0089] The climbing conveying device 300 is provided with a passage 31 for the short bars to pass through; specifically, the passage 31 is provided in the supporting bridge 14 .

[0090] like Figure 1 , 10 As shown in FIG. 11 , the unloading conveying device 500 may include a lifting conveying mechanism 600 and a unloading conveying mechanism 700; wherein,

[0091] The lifting and conveying mechanism 600 is slidably connected to the frame 1 in the vertical direction and has an ascending position and a descending position during the sliding process. The lifting and conveying mechanism 600 is suitable for sliding to the ascending position to receive the short bars delivered by the second conveying device 200;

[0092] The unloading conveying mechanism 700 is connected to the frame 1, and is suitable for receiving the short bars on the lifting and conveying mechanism 600 when the lifting and conveying mechanism 600 slides to the lowered position and moving to convey the short bars to be unloaded; specifically, this embodiment is also provided with a receiving trough 32 suitable for receiving the short bars conveyed from the unloading conveying mechanism 700.

[0093] like Figure 1 , 10 As shown in FIG. 11 , the lifting and conveying mechanism 600 may be, for example but not limited to, the following structure, which includes a lifting seat 33, a lifting drive mechanism, a roller drive mechanism 34 and at least two rollers 35; wherein,

[0094] The lifting seat 33 is slidably connected to the frame 1 along the vertical direction;

[0095] The roller 35 is rotatably connected to the lifting seat 33 and is suitable for receiving the short bars delivered by the second conveying device 200;

[0096] The lifting drive mechanism is connected to the lifting seat 33 and is used to drive the lifting seat 33 to lift and slide;

[0097] The roller driving mechanism 34 is connected to at least part of the rollers 35 and is adapted to drive the rollers 35 connected thereto to rotate so as to convey the short bars carried on the rollers 35;

[0098] The unloading conveying mechanism 700 is, for example but not limited to, the following structure, which includes an unloading driving mechanism 36, at least two main unloading wheels 37, slave unloading wheels 38 corresponding to the main unloading wheels 37, and unloading belts 39 corresponding to the main unloading wheels 37 and the slave unloading wheels 38, respectively; wherein,

[0099] The main unloading wheel 37 and the secondary unloading wheel 38 are respectively rotatably connected to the frame 1;

[0100] The unloading belt 39 is connected to the corresponding main unloading wheel 37 and the corresponding secondary unloading wheel 38 and is suitable for receiving the short bars on the roller 35 when the lifting seat 33 is lowered into place;

[0101] The unloading belt 39 and the roller 35 are spaced apart from each other;

[0102] The unloading drive mechanism 36 is connected to the main unloading wheel 37 and is used to drive the main unloading wheel 37 to rotate and then drive the unloading belt 39 to move to convey the short bars on the unloading belt 39; specifically, the unloading drive mechanism 36 includes an unloading motor, which is connected to the main unloading wheel 37 through a chain drive. When the lifting seat 33 slides to the rising position, the roller 35 is higher than the upper end of the unloading belt 39, and the short bars are carried on the roller 35; when the lifting seat 33 slides to the descending position, the roller 35 is lower than the upper end of the unloading belt 39, and the short bars on the roller 35 are carried on the unloading belt 39.

[0103] In this embodiment, the lifting drive mechanism may include at least one lifting cylinder, the cylinder body of the lifting cylinder is connected to the frame 1, and the piston rod of the lifting cylinder is connected to the lifting seat 33. The roller driving mechanism 34 includes a roller 35 motor corresponding to the roller 35, the roller 35 motor is connected to the corresponding roller 35 through a chain drive and is suitable for driving the roller 35 to rotate; the lifting seat 33 includes a mounting portion 40 corresponding to the roller 35, the lower end of the mounting portion 40 is connected to the lifting seat 33, and the roller 35 is rotatably connected to the upper end of the corresponding mounting portion 40.

[0104] Embodiment 2: A working method of the bar length screening device as described in Embodiment 1, the method comprising the following steps:

[0105] S1: the first conveying device 100 conveys the long bars and the short bars before the separation station and moves toward the separation station;

[0106] S2: the climbing conveying device 300 lifts the tail of the long bar so that the long bar does not contact the second conveying device 200 when passing through the separation station and the short bar contacts the second conveying device 200 when being conveyed by the first conveying device 100;

[0107] S3: the first conveying device 100 conveys the long bar along a first path after the long bar is conveyed to the separation station, and the second conveying device 200 conveys the short bar in contact with the long bar to the lifting conveying mechanism 600 along a second path when the short bar reaches the separation station; wherein the first path and the second path are in different directions;

[0108] S4: the lifting and conveying mechanism 600 receives the short bars sent by the second conveying device 200, and conveys the received short bars to move completely onto the lifting and conveying mechanism 600, and then the lifting and conveying mechanism 600 slides to the lowered position;

[0109] S5: When the lifting and conveying mechanism 600 slides to the lowered position, the unloading conveying mechanism 700 receives the short bars on the lifting and conveying mechanism 600 and moves to unload the short bars.

[0110] The working principle of the present invention is as follows:

[0111] The first conveying device 100 conveys the long bar and the short bar before the separation station and moves toward the separation station; then the climbing conveying device 300 lifts the tail of the long bar so that the long bar does not contact the second conveying device 200 during the process of passing through the separation station, and the short bar contacts the second conveying device 200 under the conveyance of the first conveying device 100; then the first conveying device 100 conveys the long bar along the first path after the long bar is conveyed to the separation station, and the second conveying device 200 conveys the short bar along the second path when the short bar reaches the separation station. The first path and the second path are in different directions; then the lifting and conveying mechanism 600 receives the short bars sent by the second conveying device 200, and conveys the short bars received by it to move completely to the lifting and conveying mechanism 600, and then the lifting and conveying mechanism 600 slides to the lowered position; then the unloading conveying mechanism 700 receives the short bars on the lifting and conveying mechanism 600 during the sliding of the lifting and conveying mechanism 600 to the lowered position and moves to unload the short bars. The device can automatically separate the short bars from the long bars, and then pick and remove the short bars, which reduces labor costs and the labor intensity of workers, improves the efficiency of picking, and avoids missing.

[0112] Among them, when the climbing conveying device 300 lifts the tail of the long bar, the head of the long bar is carried on the first conveying device 100, and the first conveying device 100 and the climbing conveying device 300 jointly convey the long bar to move, so that the long bar does not contact the second conveying device 200 when passing through the separation station; and because the short bar is short in length, the tail of the short bar will not be carried on the climbing conveying device 300, so the short bar is conveyed by the first conveying device 100 to contact the second conveying device 200.

[0113] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0114] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0115] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0116] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0117] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0118] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A bar length screening device, characterized in that: It comprises a conveying component and a climbing conveying device (300), wherein the conveying component comprises a first conveying device (100) and a second conveying device (200); The conveying component is suitable for conveying bars, the bars have a separation station during the conveying process, and the bars include long bars and short bars with their heads aligned; The first conveying device (100) is suitable for conveying the long bar and the short bar before the separation station and conveying the long bar along the first path after the bar is conveyed to the separation station; The climbing conveying device (300) is suitable for lifting the tail of the long bar at least when the bar is in the separation station so that the long bar does not contact the second conveying device (200) and the short bar contacts the second conveying device (200) under the conveyance of the first conveying device (100); The second conveying device (200) is suitable for conveying the short bar material in contact with the second conveying device (200) along a second path when the bar material arrives at the separation station, and the first path and the second path have different directions; Wherein, the climbing conveying device (300) comprises a driving wheel (11), a driven wheel (12), a transmission chain (13) and a climbing driving mechanism (15); The transmission chain (13) is connected to the driving wheel (11) and the driven wheel (12); The climbing drive mechanism (15) is connected to the driving wheel (11) and is suitable for driving the driving wheel (11) to rotate, thereby driving the transmission chain (13) to move; The transmission chain (13) has an upper chain portion (16), at least a portion of which forms a rising conveying portion (21) inclined upward along a conveying direction of the transmission chain (13) so as to lift the tail of the long bar during the conveying process of the long bar; Wherein, the transmission chain (13) is connected to a plurality of baffles (24) and a plurality of limit strips (25); A plurality of the limit bars (25) are arranged in sequence along the movement path of the transmission chain (13), and an accommodating groove suitable for accommodating the tail of the long bar is formed between any two adjacent limit bars (25); A plurality of baffles (24) are arranged in sequence along the movement path of the transmission chain (13), and are suitable for resisting the tail of the long bar carried on the upper chain portion (16) to prevent the long bar from moving in the axial direction of the long bar; Among the baffles (24) moved onto the upper chain portion (16), there is no gap between any two adjacent baffles (24) in the axial direction of the rod; The bar length screening device further comprises a discharge conveying device (500) suitable for receiving the short bars sent away by the second conveying device (200); the climbing conveying device (300) is arranged between the second conveying device (200) and the discharge conveying device (500); and the climbing conveying device (300) is provided with a passage (31) for the short bars to pass through.

2. The bar length screening device according to claim 1, characterized in that: The first conveying device (100) comprises at least one set of conveying components and a first driving mechanism (2) for driving the conveying components to move; wherein: The conveying assembly comprises a main conveying wheel (3) that can be driven to rotate, a rotatable secondary conveying wheel (4), and a conveying belt (5) connected between the main conveying wheel (3) and the secondary conveying wheel (4) and suitable for carrying the rods; The first driving mechanism (2) is directly or indirectly connected to the main conveying wheel (3) to drive the main conveying wheel (3) to rotate.

3. The bar length screening device according to claim 1, characterized in that: The second conveying device (200) comprises a second driving mechanism (6) and at least one conveying roller (7) suitable for carrying the rod and being driven to rotate; The second driving mechanism (6) is connected to the conveying roller (7) and is suitable for driving the conveying roller (7) to rotate so as to convey the rod material carried on the conveying roller (7).

4. The bar length screening device according to claim 3, characterized in that: A spiral groove (8) adapted to the diameter of the rod so as to fit the short rod is provided on the outer periphery of the conveying roller (7), and is used to drive the short rod to move along the axial direction of the conveying roller (7) when the conveying roller (7) is driven to rotate to convey the short rod.

5. The bar length screening device according to claim 1, characterized in that: The unloading conveying device (500) comprises a lifting conveying mechanism (600) and a unloading conveying mechanism (700); wherein: The lifting and conveying mechanism (600) is slidably connected to the frame (1) in a vertical direction and has an ascending position and a descending position during the sliding process, and the lifting and conveying mechanism (600) is suitable for sliding to the ascending position so as to receive the short bar material delivered by the second conveying device (200); The unloading conveying mechanism (700) is connected to the frame (1), and is suitable for receiving the short bars on the lifting and conveying mechanism (600) and moving to convey the unloading of the short bars when the lifting and conveying mechanism (600) slides to the descending position.

6. The bar length screening device according to claim 5, characterized in that: The lifting and conveying mechanism (600) comprises a lifting seat (33), a lifting drive mechanism, a roller drive mechanism (34) and at least two rollers (35); wherein: The lifting seat (33) is slidably connected to the frame (1) in a vertical direction; The roller (35) is rotatably connected to the lifting seat (33) and is suitable for receiving the short bar delivered by the second conveying device (200); The lifting drive mechanism is connected to the lifting seat (33) and is used to drive the lifting seat (33) to lift and slide; The roller driving mechanism (34) is connected to at least part of the rollers (35) and is suitable for driving the rollers (35) connected thereto to rotate so as to convey the short rods carried on the rollers (35); The unloading conveying mechanism (700) comprises an unloading driving mechanism (36), at least two main unloading wheels (37), sub-unloading wheels (38) corresponding one-to-one to the main unloading wheels (37), and unloading belts (39) corresponding to the main unloading wheels (37) and the sub-unloading wheels (38), respectively; wherein: The main unloading wheel (37) and the secondary unloading wheel (38) are respectively rotatably connected to the frame (1); The unloading belt (39) is connected to the corresponding main unloading wheel (37) and the corresponding secondary unloading wheel (38) and is suitable for receiving the short bar on the roller (35) when the lifting seat (33) is lowered into place; The unloading belt (39) and the roller (35) are arranged at a distance from each other; The unloading drive mechanism (36) is connected to the main unloading wheel (37) and is used to drive the main unloading wheel (37) to rotate, thereby driving the unloading belt (39) to move so as to convey the short bars on the unloading belt (39).

7. A method for operating the bar length screening device according to any one of claims 1 to 6, characterized in that: The steps of the method include: S1: the first conveying device (100) conveys the long bar and the short bar before the separation station and moves them toward the separation station; S2: the climbing conveying device (300) lifts the tail of the long bar so that the long bar does not contact the second conveying device (200) when passing through the separation station, and the short bar contacts the second conveying device (200) when being conveyed by the first conveying device (100); S3: The first conveying device (100) conveys the long bar along a first path after the long bar is conveyed to the separation station, and the second conveying device (200) conveys the short bar in contact with the long bar along a second path when the short bar arrives at the separation station; wherein the first path and the second path are in different directions.

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