Flexible Blocking Method for Preventing Deviation of Cloth Paper Tubes on High-Fall Sorting Lines

Abstract

The present invention discloses a flexible blocking method for preventing deviation of fabric paper tubes on a high-drop sorting line, which solves the problem of how to achieve flexible blocking of the falling fabric paper tubes on the high-drop sorting line; by controlling the output shaft of the electro-hydraulic cylinder (18) to extend through an electronic controller, the output shaft of the electro-hydraulic cylinder (18) drives the horizontal push rod (14) to swing towards the inclined conveyor track (1) through the sixth middle swing arm (17), so that the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) both rotate counterclockwise. When the first front swing arm (12) abuts against the abutting support inclined surface (22) after the first front swing arm swings in place, and the third rear swing arm (15) abuts against the abutting support inclined surface after the third rear swing arm swings in place, the lower ends of the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) rise above the inclined conveyor track (1), forming two blocking columns on the inclined conveyor track (1).

Description

Technical Field

[0001] The present invention relates to an automatic sorting line for fabric reels, and particularly to a flexible blocking method for preventing deviation of fabric paper tubes on a high-drop sorting line. Background Art

[0002] Fabrics of different specifications and models produced by fabric manufacturing enterprises are generally wound into long cylindrical paper tubes after being wound. A two-dimensional code is pasted on the paper tube to identify the fabric model in the tube. The paper tubes filled with fabrics are stored in a three-dimensional warehouse; when the long cylindrical paper tubes filled with fabrics are out of the warehouse, they need to be sorted through an automatic fabric out-of-warehouse sorting line first, and the sorted fabric paper tubes are transported to different discharge ports for discharging; the entire discharging process is controlled by an automated control system to achieve automatic sorting and out-of-warehouse; in order to save space, the automatic fabric out-of-warehouse sorting line is often arranged on sorting operation surfaces at different heights. When the long cylindrical paper tubes filled with fabrics are being sorted, they need to fall from a high sorting operation surface to a low sorting operation surface to achieve the sorting and out-of-warehouse of the fabric paper tubes; when the long cylindrical paper tubes fall from a high operation surface to a low operation surface, due to the large weight of the fabric reels, the fabric reels will fall at a high speed, forming a large impact force on the low operation surface. To overcome this defect, generally, a fabric reel blocker is arranged on the lower operation surface to slow down the falling speed of the falling fabric reels; the blockers in existing equipment are generally arranged on the sorting line at intervals, and their blocking surfaces are perpendicular to the conveying direction of the sorting line. It slows down the falling impact of the long cylindrical paper tubes by rigidly and forcibly blocking them, resulting in easy damage to the blockers; in addition, the rigid and forced blocking impact force is also likely to cause damage to the fabric roll paper tubes, directly leading to damage to the fabric rolls; how to achieve flexible blocking of the falling fabric paper tubes on a high-drop sorting line has become a problem to be solved on site.

[0003] Since the fabric paper tube is a long and thin cylinder, 2.2 - 3.1 meters long and weighing about 70 - 80 kilograms; when sorting on a horizontal sorting surface, in order to prevent the fabric roll paper tubes arranged horizontally and conveyed longitudinally from deviating, generally, a centering blocker is arranged at the center of the conveying track. The centering blocker plays a role of continuously centering and correcting the deviation at intervals during the conveying of the fabric roll paper tubes to achieve no deviation of the fabric roll paper tubes during conveying; but when the fabric roll paper tubes enter a sorting line with a large height difference and are conveyed, if a fabric roll blocker is arranged on the slope, the fabric paper tubes are blocked by the blocker, and then, when released and conveyed again, how to ensure that they do not deviate is another problem to be solved on site. Summary of the Invention

[0004] The present invention provides a flexible blocking method for preventing deviation of fabric paper tubes on a high-drop sorting line, which solves the technical problems of how to achieve flexible blocking of the falling fabric paper tubes on a high-drop sorting line and how not to deviate after the blocking is released.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A flexible blocking method for preventing deviation of fabric paper tubes on a high-drop sorting line is achieved through a flexible blocker mechanism for fabric reels on the high-drop sorting line. The flexible blocker mechanism is arranged on the inclined conveyor track (1) of the sorting line. A long tubular fabric reel (2) is conveyed on the inclined conveyor track (1). The long tubular fabric reel (2) is horizontally conveyed on the inclined conveyor track (1) and slides from the high position to the low position of the inclined conveyor track (1). Below the inclined conveyor track (1), a blocker mechanism support beam (4) and an electro-hydraulic cylinder suspension plate (3) are fixedly arranged respectively. On the blocker mechanism support beam (4), a front blocker mechanism (25), a middle blocker mechanism (26), and a rear blocker mechanism (27) are horizontally arranged side by side at intervals. The structures of the front blocker mechanism (25), the middle blocker mechanism (26), and the rear blocker mechanism (27) are exactly the same. The support base of the blocker mechanism is fixedly arranged on the blocker mechanism support beam (4). The support base includes a front fixed-axis support plate (5) and a rear fixed-axis support plate (6). Between the front fixed-axis support plate (5) and the rear fixed-axis support plate (6), a lower horizontal fixed axis (7) and an upper horizontal fixed axis (8) are fixedly connected respectively. On the upper horizontal fixed axis (8), a front L-shaped swing rod (9) and a rear L-shaped swing rod (10) are hinged respectively. A synchronous swing connecting horizontal axis (11) of the two L-shaped swing rods is fixedly connected between the middle of the front L-shaped swing rod (9) and the middle of the rear L-shaped swing rod (10). The front L-shaped swing rod (9) and the rear L-shaped swing rod (10) are arranged between the two parallel rails of the inclined conveyor track (1). A first front-side swing arm (12) and a third rear-side swing arm (15) are hinged respectively on the synchronous swing connecting horizontal axis (11). A second front-side swing arm (13) and a fourth rear-side swing arm (16) are hinged respectively on the lower horizontal fixed axis (7). The other end of the first front-side swing arm (12) and the other end of the second front-side swing arm (13) are hinged together through a horizontal push rod (14). The other end of the third rear-side swing arm (15) and the other end of the fourth rear-side swing arm (16) are also hinged together through the horizontal push rod (14). A sixth middle swing arm (17) is hinged in the middle of the horizontal push rod (14). The other end of the sixth middle swing arm (17) is connected to the output shaft of the electro-hydraulic cylinder (18). The electro-hydraulic cylinder (18) is suspended on the electro-hydraulic cylinder suspension plate (3) through an electro-hydraulic cylinder support (19). Pressure sensors are arranged on both the front L-shaped swing rod (9) and the rear L-shaped swing rod (10). The pressure sensors are electrically connected to the electro-hydraulic cylinder (18) through an electric controller.A front side slot base (20) is fixedly arranged on a stopper mechanism support beam (4) below a front L-shaped swing rod (9). A top contact support inclined surface (22) after the first front side swing arm swings in place is arranged on the vertical plate of the front side slot base (20). A rear side slot base (21) is fixedly arranged on the stopper mechanism support beam (4) below a rear L-shaped swing rod (10). A top contact support inclined surface after the third rear side swing arm swings in place is arranged on the vertical plate of the rear side slot base (21). The method is characterized by the following steps:

[0007] Step 1: Control the output shaft of an electro-hydraulic cylinder (18) to extend through an electric controller. The output shaft of the electro-hydraulic cylinder (18) drives a horizontal push rod (14) to swing towards an inclined conveyor track (1) through a sixth middle swing arm (17). The horizontal push rod (14) simultaneously drives a synchronous swing connecting horizontal shaft (11) to swing towards the inclined conveyor track (1) through a first front side swing arm (12) and a third rear side swing arm (15), so that the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) rotate and swing counterclockwise. When the first front side swing arm (12) abuts against the top contact support inclined surface (22) after the first front side swing arm swings in place, at the same time, the third rear side swing arm (15) abuts against the top contact support inclined surface after the third rear side swing arm swings in place, and the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) stop swinging. The lower ends of the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) rise above the inclined conveyor track (1), forming two blocking columns on the inclined conveyor track (1). At this time, the blocking columns form an acute angle with the inclined conveyor track (1). All three stopper mechanisms act synchronously according to the above steps.

[0008] Step 2: A long cylindrical fabric roll (2) slides down along the inclined conveyor track (1) from the top end of the inclined conveyor track (1). When the sliding long cylindrical fabric roll (2) contacts the L-shaped swing arms in the three stopper mechanisms, that is, when the long cylindrical fabric roll (2) contacts the front L-shaped swing rod (9) and the rear L-shaped swing rod (10), pressure sensors on the two L-shaped swing rods transmit electrical signals sensing the impact of the long cylindrical fabric roll (2) to a controller. The controller controls the output shaft of the electro-hydraulic cylinder (18) to start retracting, so that the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) swing clockwise. When the two blocking columns of the L-shaped swing rod swing clockwise to form a right angle with the inclined conveyor track (1), the controller controls the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) to stop swinging, and the long cylindrical fabric roll (2) stops sliding down. That is, all three stopper mechanisms stop swinging synchronously.

[0009] Step 3: The controller synchronously controls the front stopper mechanism (25) and the rear stopper mechanism (27) to rotate clockwise synchronously again. The front L-shaped swing rod (9) and the rear L-shaped swing rod (10) in these two stopper mechanisms drop below the inclined transfer track (1). At the same time, the controller synchronously controls the middle stopper mechanism (26) to remain stationary;

[0010] Step 4: The controller controls and synchronously controls the middle stopper mechanism (26) to rotate clockwise. During this process, the long cylindrical fabric reel (2) is released and continues to slide down along the inclined transfer track (1).

[0011] When the first front swing arm (12) abuts against the abutting support inclined plane (22) after the first front swing arm swings into place, the included angle between the first front swing arm (12) and the second front swing arm (13) is less than 180 degrees.

[0012] A front buffer pad (23) is provided on the front L-shaped swing rod (9), and a rear buffer pad (24) is provided on the rear L-shaped swing rod (10).

[0013] The stopper mechanism of the present invention has a compact structure, rapid response, flexible operation, strong impact resistance, and is durable. It cleverly transfers the impact force of the fabric roll falling to the base or steel structure, ensuring the service life of the electro-hydraulic cylinder; it can adapt to the fast-paced sorting of the fabric reel sorting line; in particular, it solves the problem that the fabric reel is prone to deviation after being blocked and then released again. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present invention in the top view direction;

[0015] Figure 2 is a schematic structural view of a stopper mechanism of the present invention in the front view direction;

[0016] Figure 3 is a schematic structural view of a stopper mechanism of the present invention in the top view direction;

[0017] Figure 4 is a three-dimensional structural view of the stopper mechanism of the present invention;

[0018] Figure 5 is a schematic structural view of the connection relationship of the driving swing arms of the two L-shaped swing rods of the present invention;

[0019] Figure 6 is a matching relationship diagram of the two L-shaped swing rods and the two groove seats of the present invention;

[0020] Figure 7 is a schematic structural view of the fixed support frame body of the stopper mechanism of the present invention;

[0021] Figure 8It is a schematic structural diagram when the output shaft of the electro-hydraulic cylinder (18) of the present invention extends in place;

[0022] Figure 9 It is a schematic structural diagram when the output shaft of the electro-hydraulic cylinder (18) of the present invention retracts in place. Specific embodiments

[0023] The present invention will be described in detail below with reference to the accompanying drawings

[0024] A flexible blocking method for preventing deviation of a fabric paper tube on a high-drop sorting line is realized through a flexible blocker mechanism of a fabric reel on the high-drop sorting line. The flexible blocker mechanism is arranged on the inclined conveyor track (1) on the sorting line. A long cylindrical fabric reel (2) is conveyed on the inclined conveyor track (1). The long cylindrical fabric reel (2) is horizontally conveyed on the inclined conveyor track (1) and slides from the high position to the low position of the inclined conveyor track (1). Below the inclined conveyor track (1), a blocker mechanism support beam (4) and an electro-hydraulic cylinder suspension plate (3) are fixedly arranged respectively. On the blocker mechanism support beam (4), a front blocker mechanism (25), a middle blocker mechanism (26), and a rear blocker mechanism (27) are horizontally arranged side by side at intervals. The structures of the front blocker mechanism (25), the middle blocker mechanism (26), and the rear blocker mechanism (27) are exactly the same. The support base of the blocker mechanism is fixedly arranged on the blocker mechanism support beam (4). The support base includes a front fixed-axis support plate (5) and a rear fixed-axis support plate (6). Between the front fixed-axis support plate (5) and the rear fixed-axis support plate (6), a lower horizontal fixed axis (7) and an upper horizontal fixed axis (8) are fixedly connected respectively. On the upper horizontal fixed axis (8), a front L-shaped swing rod (9) and a rear L-shaped swing rod (10) are hinged respectively. A synchronous swing connecting horizontal axis (11) of the two L-shaped swing rods is fixedly connected between the middle of the front L-shaped swing rod (9) and the middle of the rear L-shaped swing rod (10). The front L-shaped swing rod (9) and the rear L-shaped swing rod (10) are arranged between the two parallel rails of the inclined conveyor track (1). A first front swing arm (12) and a third rear swing arm (15) are hinged on the synchronous swing connecting horizontal axis (11) respectively. A second front swing arm (13) and a fourth rear swing arm (16) are hinged on the lower horizontal fixed axis (7) respectively. The other end of the first front swing arm (12) and the other end of the second front swing arm (13) are hinged together through a horizontal push rod (14). The other end of the third rear swing arm (15) and the other end of the fourth rear swing arm (16) are also hinged together through the horizontal push rod (14). A sixth middle swing arm (17) is hinged in the middle of the horizontal push rod (14). The other end of the sixth middle swing arm (17) is connected to the output shaft of the electro-hydraulic cylinder (18). The electro-hydraulic cylinder (18) is suspended on the electro-hydraulic cylinder suspension plate (3) through an electro-hydraulic cylinder support (19). Pressure sensors are arranged on both the front L-shaped swing rod (9) and the rear L-shaped swing rod (10). The pressure sensors are electrically connected to the electro-hydraulic cylinder (18) through an electric controller.A front side groove base (20) is fixedly arranged on a stopper mechanism support beam (4) below a front L-shaped swing rod (9). A top contact support inclined surface (22) after the first front side swing arm swings in place is arranged on a vertical plate of the front side groove base (20). A rear side groove base (21) is fixedly arranged on the stopper mechanism support beam (4) below a rear L-shaped swing rod (10). A top contact support inclined surface after the third rear side swing arm swings in place is arranged on a vertical plate of the rear side groove base (21); it is characterized by the following steps:;

[0025] Step 1: Control the output shaft of an electro-hydraulic cylinder (18) to extend through an electric controller. The output shaft of the electro-hydraulic cylinder (18) drives a horizontal push rod (14) to swing towards an inclined conveyor track (1) through a sixth middle swing arm (17). The horizontal push rod (14) simultaneously drives a synchronous swing connecting horizontal shaft (11) to swing towards the inclined conveyor track (1) through a first front side swing arm (12) and a third rear side swing arm (15), so that the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) rotate and swing counterclockwise. When the first front side swing arm (12) abuts against the top contact support inclined surface (22) after the first front side swing arm swings in place, at the same time, the third rear side swing arm (15) abuts against the top contact support inclined surface after the third rear side swing arm swings in place, and the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) stop swinging. The lower ends of the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) rise above the inclined conveyor track (1), forming two blocking columns on the inclined conveyor track (1). At this time, the blocking columns and the inclined conveyor track (1) form an acute angle; all three stopper mechanisms act synchronously according to the above steps;

[0026] Step 2: A long cylindrical fabric roll (2) slides down along the inclined conveyor track (1) from the top end of the inclined conveyor track (1). When the sliding long cylindrical fabric roll (2) contacts the L-shaped swing arms in the three stopper mechanisms, that is, when the long cylindrical fabric roll (2) contacts the front L-shaped swing rod (9) and the rear L-shaped swing rod (10), pressure sensors on the two L-shaped swing rods transmit the electrical signal sensed by the impact of the long cylindrical fabric roll (2) to a controller. The controller controls the output shaft of the electro-hydraulic cylinder (18) to start retracting, so that the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) swing clockwise. When the two blocking columns of the L-shaped swing rod swing clockwise to form a right angle with the inclined conveyor track (1), the controller controls the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) to stop swinging, and the long cylindrical fabric roll (2) stops sliding; that is, all three stopper mechanisms stop swinging synchronously;

[0027] Step 3: The controller synchronously controls the front stopper mechanism (25) and the rear stopper mechanism (27) to rotate clockwise synchronously again. The front L-shaped swing rod (9) and the rear L-shaped swing rod (10) in these two stopper mechanisms drop below the inclined conveyor track (1). At the same time, the controller synchronously controls the middle stopper mechanism (26) to remain stationary;

[0028] Step 4: The controller synchronously controls the middle stopper mechanism (26) to rotate clockwise. During this process, the long cylindrical fabric roll (2) is released and continues to slide down along the inclined conveyor track (1); after stopping the long cylindrical fabric roll (2), first swing the front stopper mechanism (25) and the rear stopper mechanism (27) on both sides synchronously to disengage them from the long cylindrical fabric roll (2), and then swing the middle stopper mechanism (26) to rotate clockwise, overcoming the defect that the long cylindrical fabric roll (2) is prone to tilt when released due to the asynchronous operation of the front stopper mechanism (25) and the rear stopper mechanism (27). Since the middle stopper mechanism (26) is arranged in the middle of the long cylindrical fabric roll (2), when it singly blocks and supports the long cylindrical fabric roll (2), the long cylindrical fabric roll (2) is in a balanced state. When it releases the long cylindrical fabric roll (2), the long cylindrical fabric roll (2) can slide down smoothly without deviation.

[0029] A mechanism for flexibly blocking fabric reels on a high-drop sorting line, comprising an inclined conveyor track (1) on the sorting line, on which a long cylindrical fabric reel (2) is conveyed. The long cylindrical fabric reel (2) is horizontally conveyed on the inclined conveyor track (1) and slides from the high position to the low position of the inclined conveyor track (1). Below the inclined conveyor track (1), a blocker mechanism support beam (4) and an electro-hydraulic cylinder suspension plate (3) are respectively and fixedly arranged. On the blocker mechanism support beam (4), a front fixed-axis support plate (5) and a rear fixed-axis support plate (6) are respectively and fixedly arranged. Between the front fixed-axis support plate (5) and the rear fixed-axis support plate (6), a lower horizontal fixed axis (7) and an upper horizontal fixed axis (8) are respectively and fixedly connected. On the upper horizontal fixed axis (8), a front L-shaped swing rod (9) and a rear L-shaped swing rod (10) are respectively hinged. Between the middle of the front L-shaped swing rod (9) and the middle of the rear L-shaped swing rod (10), a synchronous swing connecting horizontal axis (11) of the two L-shaped swing rods is fixedly connected. The front L-shaped swing rod (9) and the rear L-shaped swing rod (10) are arranged between two parallel tracks of the inclined conveyor track (1). On the synchronous swing connecting horizontal axis (11), a first front swing arm (12) and a third rear swing arm (15) are respectively hinged. On the lower horizontal fixed axis (7), a second front swing arm (13) and a fourth rear swing arm (16) are respectively hinged. The other end of the first front swing arm (12) and the other end of the second front swing arm (13) are hinged together through a horizontal push rod (14). The other end of the third rear swing arm (15) and the other end of the fourth rear swing arm (16) are also hinged together through the horizontal push rod (14). In the middle of the horizontal push rod (14), a sixth middle swing arm (17) is hinged. The other end of the sixth middle swing arm (17) is connected to the output shaft of the electro-hydraulic cylinder (18). The electro-hydraulic cylinder (18) is suspended on the electro-hydraulic cylinder suspension plate (3) through an electro-hydraulic cylinder support (19).

[0030] On the blocker mechanism support beam (4) below the front L-shaped swing rod (9), a front side groove seat (20) is fixedly arranged. On the vertical plate of the front side groove seat (20), a top contact support inclined surface (22) after the first front swing arm swings in place is arranged. On the blocker mechanism support beam (4) below the rear L-shaped swing rod (10), a rear side groove seat (21) is fixedly arranged. On the vertical plate of the rear side groove seat (21), a top contact support inclined surface after the third rear swing arm swings in place is arranged. A front buffer pad (23) is arranged on the front L-shaped swing rod (9), and a rear buffer pad (24) is arranged on the rear L-shaped swing rod (10).

Claims

1. A flexible blocking method for preventing deviation of fabric paper tubes on a high-drop sorting line is achieved through a flexible blocker mechanism for fabric reels on the high-drop sorting line. The flexible blocker mechanism is arranged on the inclined conveyor track (1) on the sorting line. A long tubular fabric reel (2) is conveyed on the inclined conveyor track (1). The long tubular fabric reel (2) is horizontally conveyed on the inclined conveyor track (1) and slides from the high position to the low position of the inclined conveyor track (1). Below the inclined conveyor track (1), a blocker mechanism support beam (4) and an electro-hydraulic cylinder suspension plate (3) are fixedly arranged respectively. On the blocker mechanism support beam (4), a front blocker mechanism (25), a middle blocker mechanism (26), and a rear blocker mechanism (27) are horizontally arranged side by side at intervals. The structures of the front blocker mechanism (25), the middle blocker mechanism (26), and the rear blocker mechanism (27) are exactly the same. The support base of the blocker mechanism is fixedly arranged on the blocker mechanism support beam (4). The support base includes a front fixed-axis support plate (5) and a rear fixed-axis support plate (6). Between the front fixed-axis support plate (5) and the rear fixed-axis support plate (6), a lower horizontal fixed axis (7) and an upper horizontal fixed axis (8) are fixedly connected respectively. On the upper horizontal fixed axis (8), a front L-shaped swing rod (9) and a rear L-shaped swing rod (10) are hinged respectively. A synchronous swing connecting horizontal axis (11) of the two L-shaped swing rods is fixedly connected between the middle of the front L-shaped swing rod (9) and the middle of the rear L-shaped swing rod (10). The front L-shaped swing rod (9) and the rear L-shaped swing rod (10) are arranged between the two parallel rails of the inclined conveyor track (1). A first front swing arm (12) and a third rear swing arm (15) are hinged respectively on the synchronous swing connecting horizontal axis (11). A second front swing arm (13) and a fourth rear swing arm (16) are hinged respectively on the lower horizontal fixed axis (7). The other end of the first front swing arm (12) and the other end of the second front swing arm (13) are hinged together through a horizontal push rod (14). The other end of the third rear swing arm (15) and the other end of the fourth rear swing arm (16) are also hinged together through the horizontal push rod (14). A sixth middle swing arm (17) is hinged in the middle of the horizontal push rod (14). The other end of the sixth middle swing arm (17) is connected to the output shaft of the electro-hydraulic cylinder (18). The electro-hydraulic cylinder (18) is suspended on the electro-hydraulic cylinder suspension plate (3) through an electro-hydraulic cylinder support (19). Pressure sensors are arranged on both the front L-shaped swing rod (9) and the rear L-shaped swing rod (10). The pressure sensors are electrically connected to the electro-hydraulic cylinder (18) through an electric controller.A front side groove base (20) is fixedly arranged on a stopper mechanism support beam (4) below the front L-shaped swing rod (9). A top contact support inclined surface (22) after the first front side swing arm swings in place is arranged on the vertical plate of the front side groove base (20). A rear side groove base (21) is fixedly arranged on the stopper mechanism support beam (4) below the rear L-shaped swing rod (10). A top contact support inclined surface after the third rear side swing arm swings in place is arranged on the vertical plate of the rear side groove base (21); It is characterized by the following steps: First step: Control the output shaft of the electro-hydraulic cylinder (18) to extend through the electric controller. The output shaft of the electro-hydraulic cylinder (18) pushes the horizontal push rod (14) to swing towards the inclined conveyor track (1) through the sixth middle swing arm (17). The horizontal push rod (14) simultaneously pushes the synchronous swing connecting horizontal shaft (11) to also swing towards the inclined conveyor track (1) through the first front swing arm (12) and the third rear swing arm (15), causing the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) to rotate and swing counterclockwise. When the first front swing arm (12) abuts against the abutting support inclined surface (22) after the first front swing arm swings in place, at the same time, the third rear swing arm (15) abuts against the abutting support inclined surface after the third rear swing arm swings in place, and the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) stop swinging. The lower ends of the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) rise above the inclined conveyor track (1), forming two blocking columns on the inclined conveyor track (1). At this time, the blocking columns form an acute angle with the inclined conveyor track (1); all three blocker mechanisms act synchronously in the above steps; Second step: The long cylindrical fabric roll (2) slides down along the inclined conveyor track (1) from the top of the inclined conveyor track (1). When the sliding long cylindrical fabric roll (2) contacts the L-shaped swing arms in the three blocker mechanisms, that is, when the long cylindrical fabric roll (2) contacts the front L-shaped swing rod (9) and the rear L-shaped swing rod (10), the pressure sensors on the two L-shaped swing rods transmit the electrical signal sensed by the impact of the long cylindrical fabric roll (2) to the controller. The controller controls the output shaft of the electro-hydraulic cylinder (18) to start retracting, causing the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) to swing clockwise. When the two blocking columns of the L-shaped swing rod swing clockwise to form a right angle with the inclined conveyor track (1), the controller controls the front L-shaped swing rod (9) and the rear L-shaped swing rod (10) to stop swinging, and the long cylindrical fabric roll (2) stops sliding; that is, all three blocker mechanisms stop swinging synchronously; Third step: The controller synchronously controls the front blocker mechanism (25) and the rear blocker mechanism (27) to rotate clockwise again synchronously. The front L-shaped swing rod (9) and the rear L-shaped swing rod (10) in these two blocker mechanisms drop below the inclined conveyor track (1). At the same time, the controller synchronously controls the middle blocker mechanism (26) to remain stationary; Fourth step: The controller controls the middle blocker mechanism (26) to rotate clockwise synchronously. During this process, the long cylindrical fabric roll (2) is released and continues to slide down along the inclined conveyor track (1).

2. A flexible blocking method for preventing deviation of fabric paper tubes on a high-drop sorting line according to claim 1, characterized in that, When the first front swing arm (12) abuts against the abutting support inclined surface (22) after the first front swing arm swings in place, the angle between the first front swing arm (12) and the second front swing arm (13) is less than 180 degrees.

3. A flexible blocking method for preventing deviation of fabric paper tubes on a high-drop sorting line according to claim 1 or 2, characterized in that, A front buffer pad (23) is provided on the front L-shaped swing rod (9), and a rear buffer pad (24) is provided on the rear L-shaped swing rod (10).

Images