Fully automatic bar conveying system

Abstract

The present invention discloses a fully automatic bar conveying system, including a loading platform, a lifting roller, a counter-rotating roller, and a fixed roller. The loading platform includes a platform body and a material-dispensing device fixed on the material platform body, which is used for loading the bar. The counter-rotating roller includes an active roller and a driven roller. The active roller and the driven roller are arranged at intervals in the longitudinal direction, and multiple groups are arranged in the transverse direction, which are used to rotate the bar. The fixed roller includes a fixed seat and a fixed roller fixed on the fixed seat; the lifting roller includes a lifting device and a lifting roller fixed on the lifting device, which is used to carry the bar from the loading platform to the counter-rotating roller, and from the counter-rotating roller to the fixed roller. The advantages of the present invention are: it realizes the fully automatic loading, conveying, and unloading process of the bar, and provides a basis for the automatic grinding of the bar. At the same time, a single bar can be automatically separated for transportation, and the degree of automation is high.

Description

Technical Field

[0001] The invention relates to a conveying system, in particular to a fully automatic bar conveying system for metallurgical manufacturing, belonging to the technical field of automatic control. Background Art

[0002] At present, domestic metallurgical plants are unable to achieve automated online grinding in the finishing operations for special steel bars. The reasons are summarized as follows: the loading, conveying and unloading processes of special steel bars are implemented manually, each of which operates independently and separately, and cannot achieve overall linkage to provide guarantee for automated online grinding operations. Summary of the invention

[0003] Purpose of the invention: In view of the above problems, the purpose of the present invention is to provide a fully automatic bar conveying system to realize the automatic loading and unloading of bars, thereby providing a basis for the automatic grinding of bars.

[0004] Technical solution: A fully automatic bar conveying system, comprising a loading platform, a lifting roller, a counter-rotating roller, and a fixed roller. The loading platform comprises a platform body and a material-dispensing device fixed on the platform body, which is used for loading the bar. The counter-rotating roller comprises an active roller and a driven roller, which are arranged at intervals in the longitudinal direction and are arranged in multiple groups in the transverse direction, which are used for rotating the bar. The fixed roller comprises a fixed seat and a fixed roller fixed on the fixed seat; the lifting roller comprises a lifting device and a lifting roller fixed on the lifting device, which is used for carrying the bar from the loading platform to the counter-rotating roller, and from the counter-rotating roller to the fixed roller;

[0005] The loading platform is located on the side of the lifting roller, and the platform body has a slope toward the lifting roller. There are multiple lifting rollers and fixed rollers. The multiple lifting rollers and multiple groups of active rollers and driven rollers are arranged in sequence at intervals. The lifting rollers and fixed rollers are arranged in rows horizontally, and the axial directions of the two are perpendicular to the axial directions of the active rollers and driven rollers. The horizontal connecting line of the two corresponds to the interval between the active rollers and the driven rollers. The active rollers, lifting rollers, and fixed rollers are driven by servo motors respectively.

[0006] The principle of the present invention is that the entire bar conveying process includes the material feeding process of the material-dividing device, the up-and-down movement process of the lifting device, and the lateral conveying process of the lifting device. When in use, during the material feeding process, the bar is transferred from the platform body to the lifting roller by the material-dividing device. During the up-and-down movement of the lifting device, the lifting device first descends to transport the bar carried by it to between the active roller and the driven roller. Then, the active roller is driven to rotate by the servo motor, driving the bar and the driven roller to rotate, providing conditions for the grinding process of the bar. After the grinding process is completed, the active roller stops rotating. Then the lifting device rises to lift the bar from the active roller and the driven roller. During the lateral conveying process of the lifting device, the servo motor of the lifting roller is started, the lifting roller rotates, and the bar is transmitted to the fixed roller in the lateral direction. The servo motor of the fixed roller and the servo motor of the lifting roller are started synchronously to receive the bar, and finally the bar is transported away through the fixed roller, thereby completing the entire bar conveying process.

[0007] Furthermore, the material-dispensing device includes a material-dispensing arm, a material-dispensing rotating shaft, and a material-dispensing cylinder. The material-dispensing rotating shaft is transversely fixed to the platform body. The tail of the material-dispensing arm is sleeved on the material-dispensing rotating shaft, and the front end has a hook portion, and the hook portion extends forward to the lifting roller. The fixed end of the material-dispensing cylinder is connected to the platform body, and the driving end is connected to the front end of the material-dispensing arm. The hook portion transports the bar to the lifting roller under the drive of the material-dispensing cylinder. When this structure is used, the bar is firstly held by the hook portion, and then, under the drive of the material-dispensing cylinder, the front end of the material-dispensing arm is rotated around the material-dispensing rotating shaft to transport the bar to the lifting roller, completing the loading process.

[0008] Furthermore, the material dispensing device also includes a limit baffle, which is fixed to the front end of the stand body to prevent the rod from falling from the stand body.

[0009] Furthermore, the upper surface of the material-dividing arm is in a Z shape, with an upward convex tip in the middle, the convex tip is located behind the limit baffle, and the longitudinal spacing between the two is greater than the diameter of a single bar and less than twice the diameter of the bar. In this structure, when the material-dividing cylinder drives the material-dividing arm to feed, the convex tip can separate multiple bars at the front end of the platform body, and only a single bar can be fed, so as to maintain the continuity of the subsequent automation process.

[0010] Furthermore, the loading platform also includes a material blocking device, which includes a material blocking arm, a material blocking shaft, and a material blocking cylinder. The material blocking shaft is fixed to the platform body, the material blocking arm is vertically arranged, and the middle part is sleeved on the material blocking shaft. The fixed end of the material blocking cylinder is connected to the platform body, and the driving end is connected to the lower end of the material blocking arm. This structure can prevent a large number of bars from being stacked at the front end of the platform body, which affects the automatic loading.

[0011] Furthermore, the lifting device includes a support seat, a lifting cylinder, a lifting roller shaft, a connecting rod mechanism, a rocker arm, and a connecting plate. The lifting roller shaft is fixed on the support seat, one end of the rocker arm is sleeved on the lifting roller shaft, and the other end is connected to the connecting plate, the upper end of the connecting plate fixes the lifting roller, the fixed end of the lifting cylinder is connected to the support seat, and the driving end is connected to the lifting roller shaft through the connecting rod mechanism.

[0012] Furthermore, the connecting rod mechanism includes a guide rod group and a connecting arm. The guide rod group is composed of multiple guide rods that are laterally hinged. Each guide rod is connected to the lifting roller shaft through the connecting arm. The driving end of the lifting cylinder is hinged at the end of the guide rod group.

[0013] Furthermore, it also includes a material collection device, which includes a material collection base, a material collection shaft, a material collection spoon, and a material collection cylinder. The material collection base is located on the side of the fixed roller, and a material collection trough is provided on the upper surface of the material collection base. The material collection shaft is transversely fixed on the material collection base. One end of the material collection spoon is sleeved on the material collection shaft, and the spoon part of the other end extends into the fixed roller. The material collection spoon swings around the material collection shaft under the drive of the material collection cylinder. In this structure, after the rod reaches the position corresponding to the material collection device, the servo motor of the fixed roller is turned off, and the fixed roller stops rotating. The material collection cylinder drives the material collection spoon to move the rod from the fixed roller to the material collection trough for standby use.

[0014] Furthermore, the material collecting device also includes a buffer cloth belt, which is arranged in the material collecting trough, and its bottom is higher than the inner bottom surface of the material collecting trough, and is used to buffer the rods to avoid collision damage to the rods during material collection.

[0015] Furthermore, the lifting roller and the fixed roller are V-shaped rollers of the same type to facilitate transmission.

[0016] Beneficial effects: Compared with the prior art, the advantages of the present invention are: it realizes the fully automatic loading, conveying and unloading process of the bar material, and provides a basis for the automatic grinding of the bar material. At the same time, it can automatically separate the single bar material for conveying, and the degree of automation is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 for Figure 1 A magnified schematic diagram of position A in the middle;

[0019] Figure 3 for Figure 1 A magnified schematic diagram of position B in the middle;

[0020] Figure 4 for Figure 1A magnified schematic diagram of the middle C position;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the counter-rotating roller table;

[0022] Figure 6 It is a schematic diagram of the lifting roller structure;

[0023] Figure 7 It is a schematic diagram of the structure of the aggregate collecting device. DETAILED DESCRIPTION

[0024] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. These embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0025] A fully automatic bar conveying system, as shown in the attached Figure 1 As shown, it includes a loading platform 1, a lifting roller table 2, a counter-rotating roller table 3, a fixed roller table 4, and a material collecting device 5.

[0026] In this embodiment, in order to optimize the layout, the lifting roller 2, the counter-rotating roller 3, and the fixed roller 4 are arranged horizontally, the loading platform 1 and the counter-rotating roller 3 are arranged longitudinally, the collecting device 5 and the fixed roller 4 are arranged longitudinally, and the loading platform 1 and the collecting device 5 are located on the same side of the lifting roller 2, the counter-rotating roller 3, and the fixed roller 4.

[0027] In order to realize the automatic loading of the bar material, the loading platform 1 includes a platform body 11 and a material shifting device 12 and a material blocking device 13 fixed on the platform body 11. Figure 1 As shown, the loading platform 1 is located on the side of the lifting roller 2, and the platform body 11 has a slope toward the lifting roller 2. Figure 1 , 3 As shown, the material dispensing device 12 includes a material dispensing arm 12a, a material dispensing shaft 12b, a material dispensing cylinder 12c, and a limit baffle 12d. The material dispensing shaft 12b is transversely fixed to the frame body 11. The tail of the material dispensing arm 12a is sleeved on the material dispensing shaft 12b, and the front end has a hook 12a-1, which extends forward to the lifting roller 2. The fixed end of the material dispensing cylinder 12c is connected to the frame body 11, and the driving end is connected to the front end of the material dispensing arm 12a. The hook 12a-1 transports the rod to the lifting roller 22 under the drive of the material dispensing cylinder 12c, and the limit baffle 12d is fixed to the front end of the frame body 11. As shown in the attached figure Figure 2 As shown, the material blocking device 13 includes a material blocking arm 13a, a material blocking shaft 13b, and a material blocking cylinder 13c. The material blocking shaft 13b is fixed to the rack body 11. The material blocking arm 13a is vertically arranged, and its middle part is sleeved on the material blocking shaft 13b. The fixed end of the material blocking cylinder 13c is connected to the rack body 11, and the driving end is connected to the lower end of the material blocking arm 13a. In this embodiment, in order to optimize the single-piece automatic transmission of the bar, as shown in the attached Figure 3As shown, the upper surface of the material-dispensing arm 12a is arranged in a Z shape, with an upward protrusion 12a-2 in the middle, and the protrusion 12a-2 is located behind the limit baffle 12d, and the longitudinal spacing between the two is greater than the diameter of a single rod and less than twice the diameter of the rod.

[0028] In order to facilitate the loading and unloading of bars, a lifting roller table is set up. Figure 4 , 6 As shown, the lifting roller 2 includes a lifting device 21 and a lifting roller 22 fixed on the lifting device 21; the lifting device 21 includes a support seat 21a, a lifting cylinder 21b, a lifting roller shaft 21c, a connecting rod mechanism, a rocker arm 21d, and a connecting plate 21e. The lifting roller shaft 21c is fixed on the support seat 21a, one end of the rocker arm 21d is sleeved on the lifting roller shaft 21c, and the other end is connected to the connecting plate 21e, and the lifting roller 22 is fixed on the upper end of the connecting plate 21e. The fixed end of the lifting cylinder 21b is connected to the support seat 21a, and the driving end is connected to the lifting roller shaft 21c through the connecting rod mechanism. In this embodiment, the connecting rod mechanism includes a guide rod group 21f and a connecting arm 21g. The guide rod group 21f is composed of a plurality of guide rods that are hinged in a transverse direction, and each guide rod is connected to the lifting roller shaft 21c through the connecting arm 21g. The driving end of the lifting cylinder 21b is hinged at the end of the guide rod group 21f.

[0029] In order to realize the automatic rotation of the bars, a counter-rotating roller table is set. Figure 5 As shown, the counter-rotating roller conveyor 3 includes an active roller 31 and a driven roller 32. The active roller 31 and the driven roller 32 are arranged at intervals in the longitudinal direction, and multiple groups are arranged in the transverse direction.

[0030] In order to realize the automatic unloading and collection of the bar material, a fixed roller and a collection device are provided. The fixed roller 4 comprises a fixed seat 41 and a fixed roller 42 fixed on the fixed seat 41. Figure 7 As shown, the material collecting device 5 includes a material collecting base 51, a material collecting rotating shaft 52, a material collecting scoop 53, a material collecting cylinder 54, and a buffer cloth belt 55. The material collecting base 51 is located on the side of the fixed roller 4. A material collecting groove 51a is provided on the upper surface of the material collecting base 51. The material collecting rotating shaft 52 is transversely fixed on the material collecting base 51. One end of the material collecting scoop 53 is sleeved on the material collecting rotating shaft 52, and the scoop part 52a at the other end extends into the fixed roller 4. The material collecting scoop 53 swings around the material collecting rotating shaft 52 under the drive of the material collecting cylinder 54. The buffer cloth belt 55 is arranged in the material collecting groove 51a, and its bottom is higher than the inner bottom surface of the material collecting groove 51a.

[0031] In this embodiment, in order to further optimize the layout, there are multiple lifting rollers 22 and fixed rollers 42. The multiple lifting rollers 22 and the multiple groups of active rollers 31 and driven rollers 32 are arranged in sequence at intervals. The lifting rollers 22 and the fixed rollers 42 are arranged in rows horizontally. The axial directions of the two are perpendicular to the axial directions of the active rollers 31 and the driven rollers 32. The horizontal connecting line between the two corresponds to the interval between the active rollers 31 and the driven rollers 32. The active rollers 31, the lifting rollers 22, and the fixed rollers 42 are respectively driven by servo motors.

[0032] In this embodiment, in order to facilitate the transmission of the rod between the lifting roller and the fixed roller, the lifting roller 22 and the fixed roller 42 are V-shaped rollers of the same type.

[0033] When the fully automatic bar conveying system of this embodiment is used, it includes an automated loading process, a bar rotation process, and a bar unloading process.

[0034] During the loading process, the bar is first stored at the rear of the rack body 11, and the front end is blocked by the blocking arm 13a. During loading, the blocking cylinder 13c drives the blocking arm 13a to swing downward around the blocking shaft 13b, releasing a small amount of bar to the front end of the rack body 11. Due to the blocking of the limit baffle 12d, the bar will not fall. At this time, the material-dispensing cylinder 12c drives the material-dispensing arm 12a to swing upward around the material-dispensing shaft 12b, and the convex tip 12a-2 pushes up to separate a single bar from the rack body 11 to the hook 12a-1 position. Then, the material-dispensing cylinder 12c drives the material-dispensing arm 12a to swing downward around the material-dispensing shaft 12b, and transports the bar to the lifting roller 22. After that, the lifting cylinder 21b drives the connecting plate 21e to swing downward around the lifting roller shaft 21c through the connecting rod mechanism, and carries the bar on the lifting roller 22 to the gap between the active roller 31 and the driven roller 32, completing the loading process.

[0035] During the bar rotation process, the servo motor drives the active roller 31 to rotate, driving the bar and the driven roller 32 to rotate, thereby completing the bar rotation process.

[0036] During the unloading process, the lifting cylinder 21b drives the connecting plate 21e to swing upward around the lifting roller shaft 21c through the connecting rod mechanism, and lifts the bar through the lifting roller 22. When the lifting roller 22 is at the same height as the fixed roller 42, the lifting cylinder 21b stops, and the servo motors of the lifting roller 22 and the fixed roller 42 start to transport the bar horizontally to the fixed roller 42. When the bar is transported to the right place, the servo motors of the lifting roller 22 and the fixed roller 42 stop, and the collecting cylinder 54 drives the collecting spoon 53 to swing upward around the collecting shaft 52, and the bar on the fixed roller 42 is pushed into the buffer cloth belt 55 in the collecting trough 51a, completing the unloading process.

Claims

1. A fully automatic bar conveying system, comprising a loading platform (1), a lifting roller (2), a counter-rotating roller (3), and a fixed roller (4), wherein the loading platform (1) comprises a platform body (11) and a material shifting device (12) fixed on the platform body (11), and is used for loading the bar; the counter-rotating roller (3) comprises an active roller (31) and a driven roller (32), wherein the active roller (31) and the driven roller (32) are arranged at intervals in the longitudinal direction, and a plurality of groups are arranged in a transverse direction, and are used for rotating the bar; the fixed roller (4) comprises a fixed seat (41) and a fixed roller (42) fixed on the fixed seat (41); the lifting roller (2) comprises a lifting device (21) and a lifting roller (22) fixed on the lifting device (21), and is used for carrying the bar from the loading platform (1) to the counter-rotating roller (3), and from the counter-rotating roller (3) to the fixed roller (4); The loading platform (1) is located on the side of the lifting roller (2), and the platform body (11) has a slope toward the lifting roller (2). There are multiple lifting rollers (22) and fixed rollers (42). The multiple lifting rollers (22) and multiple groups of active rollers (31) and driven rollers (32) are arranged in sequence at intervals. The lifting rollers (22) and fixed rollers (42) are arranged in a row horizontally. The axial directions of the two are perpendicular to the axial directions of the active rollers (31) and the driven rollers (32). The horizontal connection line between the two corresponds to the interval between the active rollers (31) and the driven rollers (32). The active rollers (31), the lifting rollers (22), and the fixed rollers (42) are driven by servo motors respectively. The material dispensing device (12) comprises a material dispensing arm (12a), a material dispensing rotating shaft (12b), and a material dispensing cylinder (12c). The material dispensing rotating shaft (12b) is transversely fixed on the platform body (11). The tail of the material dispensing arm (12a) is sleeved on the material dispensing rotating shaft (12b), and the front end thereof is provided with a hook portion (12a-1). The hook portion (12a-1) extends forward to the lifting roller (2). The fixed end of the material dispensing cylinder (12c) is connected to the platform body (11), and the driving end is connected to the front end of the material dispensing arm (12a). The hook portion (12a-1) transports the rod to the lifting roller (22) under the drive of the material dispensing cylinder (12c). The loading platform (1) further comprises a material blocking device (13), the material blocking device (13) comprising a material blocking arm (13a), a material blocking rotating shaft (13b), and a material blocking cylinder (13c), the material blocking rotating shaft (13b) being fixed to the platform body (11), the material blocking arm (13a) being arranged vertically, the middle part of which is sleeved on the material blocking rotating shaft (13b), and the material blocking cylinder (13c) having a fixed end connected to the platform body (11) and a driving end connected to the lower end of the material blocking arm (13a); The lifting device (21) comprises a support seat (21a), a lifting cylinder (21b), a lifting roller shaft (21c), a connecting rod mechanism, a rocker arm (21d), and a connecting plate (21e); the lifting roller shaft (21c) is fixed to the support seat (21a); ​​one end of the rocker arm (21d) is sleeved on the lifting roller shaft (21c) and the other end is connected to the connecting plate (21e); the lifting roller (22) is fixed to the upper end of the connecting plate (21e); the fixed end of the lifting cylinder (21b) is connected to the support seat (21a), and the driving end is connected to the lifting roller shaft (21c) via the connecting rod mechanism; The connecting rod mechanism comprises a guide rod group (21f) and a connecting arm (21g). The guide rod group (21f) is composed of a plurality of guide rods that are hinged in a transverse direction. Each guide rod is connected to a lifting roller shaft (21c) via a connecting arm (21g). The driving end of the lifting cylinder (21b) is hinged to the end of the guide rod group (21f).

2. The system according to claim 1, characterized in that: The material shifting device (12) further comprises a limit baffle (12d), wherein the limit baffle (12d) is fixed to the front end of the platform body (11).

3. The system according to claim 2, characterized in that: The upper surface of the material-dispensing arm (12a) is in a Z shape, with a protrusion (12a-2) facing upward in the middle, the protrusion (12a-2) is located behind the limit baffle (12d), and the longitudinal spacing between the two is greater than the diameter of a single rod and less than twice the diameter of the rod.

4. The system according to claim 1, characterized in that: The material collecting device (5) further comprises a material collecting base (51), a material collecting rotating shaft (52), a material collecting spoon (53), and a material collecting cylinder (54). The material collecting base (51) is located on the side of the fixed roller (4). A material collecting groove (51a) is provided on the upper surface of the material collecting base (51). The material collecting rotating shaft (52) is transversely fixed on the material collecting base (51). One end of the material collecting spoon (53) is sleeved on the material collecting rotating shaft (52), and the spoon part (52a) at the other end extends into the fixed roller (4). The material collecting spoon (53) swings around the material collecting rotating shaft (52) under the drive of the material collecting cylinder (54).

5. The system according to claim 4, characterized in that: The material collecting device (5) further comprises a buffer cloth belt (55), wherein the buffer cloth belt (55) is arranged in the material collecting trough (51a), and the bottom of the buffer cloth belt is higher than the inner bottom surface of the material collecting trough (51a).

6. The system according to claim 1, characterized in that: The lifting roller (22) and the fixed roller (42) are V-shaped rollers of the same model.

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