Crossbar profiling device for flat car loading scrap steel

Abstract

The present invention relates to the field of cross bars, specifically to a cross bar profiling device for a flat car for loading scrap steel, comprising a base, two limit seats symmetrically and slidably connected to the surface of the base, a profiling mechanism provided on the surface of the base, and adjustment mechanisms provided on both the profiling mechanism and the limit seats, the profiling mechanism comprising a U-shaped mounting frame, the U-shaped mounting frame being fixedly connected to the surface of the base, a stamping cylinder being fixedly connected to the top of the U-shaped mounting frame, and the bottom end of the telescopic rod of the stamping cylinder passing through the U-shaped mounting frame and then being slidably connected to the U-shaped mounting frame. By providing a profiling mechanism and an adjustment mechanism, the present invention can automatically measure the diameter of the cross bar to be punched, and make the two limit seats approach each other, push the cross bar to be punched to the bottom of the punching die, reduce the punching angle error, and thus improve the quality of the cross bar, and at the same time, can automatically clamp cross bars of different diameters without manual adjustment, reduce labor intensity, and improve punching efficiency.

Description

Technical Field

[0001] The invention relates to the field of cross bars, in particular to a cross bar profiling device for a flat car used for loading scrap steel. Background Art

[0002] The cross support device of the flat car used to load scrap steel is an important part of the bogie. The reliability of the cross support device directly affects the running stability and safety of the railway vehicle. The cross rod is the main component of the cross support device. The middle part of the cross rod is a nest-shaped structure formed by the thick-walled tube after large curvature deformation. The nest-shaped structure is assembled with fasteners and elastic bodies to form the cross support device of the bogie.

[0003] In the prior art, a Chinese invention patent with application number CN200910008710.8 discloses a cross-rod middle forming die, comprising: a punch for stamping, the punch being fixedly mounted on an upper die plate via an upper die seat; a die matching the punch, the die being fixedly mounted on a lower die plate via a lower die seat; the forming die also comprises a pair of liftable follow-up positioning devices for positioning the workpiece so that its axis and the longitudinal center line of the punch are kept in the same vertical plane, and the pair of positioning devices are respectively mounted at both ends of the die.

[0004] However, the existing technology requires workers to manually adjust the spacing between the clamps, and during the adjustment process, the cross rod is difficult to stably stay in the center of the forming mold, thereby increasing the error of the pressing angle and causing the quality of the produced cross rod to be reduced.

[0005] Based on this, the present invention designs a flat car cross-rod profiling device for loading scrap steel to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a flat car cross-rod profiling device for loading scrap steel, so as to solve the problem in the prior art proposed in the above background technology that the staff needs to manually adjust the spacing between the clamps, and during the adjustment process, the cross-rod is difficult to be stably located in the center of the forming mold, thereby increasing the profiling angle error and causing the quality of the produced cross-rod to be reduced.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cross-bar profiling device for a flat car for loading scrap steel, comprising a base, two limit seats are symmetrically slidably connected to the surface of the base, a profiling mechanism is arranged on the surface of the base, and an adjustment mechanism is arranged on the profiling mechanism and the limit seats, and the profiling mechanism comprises a U-shaped mounting frame, the U-shaped mounting frame is fixedly connected to the surface of the base, a stamping cylinder is fixedly connected to the top of the U-shaped mounting frame, the bottom end of the telescopic rod of the stamping cylinder penetrates the U-shaped mounting frame and is slidably connected to the U-shaped mounting frame, and a detachable stamping die is fixedly connected to the bottom end of the stamping cylinder;

[0008] The surface of the base is symmetrically provided with T-shaped slide grooves, and the bottom end of the limit seat is slidably connected in the T-shaped slide grooves;

[0009] The adjustment mechanism comprises a U-shaped pushing frame, both ends of the U-shaped pushing frame are slidably connected with a first sliding rod, the first sliding rod is fixedly connected in the inner groove of the U-shaped mounting frame, and the bottom end of the U-shaped pushing frame is provided with a pushing flap;

[0010] Both ends of the push flap are fixedly connected to the push plate, the bottom ends of the push plate are rotatably connected to the surface of the base, the top end of the push plate is rotatably connected to a connecting block, the surface of the connecting block is slidably connected to a second slide bar, the second slide bar is respectively fixedly connected to the side wall of the limit seat, the surface of the second slide bar is sleeved with a return spring, and the two ends of the return spring are respectively fixedly connected to the limit seat and the connecting block;

[0011] The top ends of the push flaps are fixedly connected to a rotating frame, and the rotating frame is rotatably connected to the bottom ends of the U-shaped push frames in a detachable manner;

[0012] The push flap surface is provided with a clearance groove to allow the bottom end of the U-shaped push frame to pass through;

[0013] The top ends of the two limit seats are provided with adjustable limit mechanisms;

[0014] During operation, in the prior art, the staff is required to manually adjust the spacing between the clamps, and during the adjustment process, the cross rod is difficult to be stably located in the center of the forming mold, thereby increasing the angle error of the press, resulting in the problem of reduced quality of the produced cross rod. The technical solution can solve the above problem, and the specific operation is as follows: the cross rod to be punched is placed on the surface of the base and located between the two limit seats, and then the stamping cylinder is started so that the bottom end of the telescopic rod of the stamping cylinder drives the stamping die to move downward, and the U-shaped push frame moves downward along the first slide bar, and the bottom end of the U-shaped push frame pushes the push flap to flip, and the push plate flips, and the connecting block at the top moves downward along the second slide bar, and the reset spring is compressed until the stamping die contacts the top of the cross rod to be punched. At this time, the two limit seats are pushed together by the push plate, and the two sides of the cross rod to be punched are limited, and then the adjustable limit mechanism is used to limit the two ends of the two limit seats, thereby ensuring the stability of the two limit seats. Since the two limit seats are synchronously moved together, the cross rod to be punched can be stably located in the center of the forming mold, reducing the stamping angle error. Thereby improving the quality of the cross rod, the connection between the U-shaped push frame and the rotating frame is then manually removed, and at the same time, the telescopic rod of the stamping cylinder continues to move downward, and the bottom end of the U-shaped push frame drives the stamping die through the give way groove, so that the surface of the cross rod forms an inward concave shape, completing the stamping, and at the same time, by opening the give way groove, it is ensured that the stamping die can move to the bottom. When the stamping is completed, the stamping cylinder is started, so that the telescopic rod of the stamping cylinder moves upward, so that the stamping die is reset, and then the adjustable limit mechanism is manually removed, and under the action of the reset spring, the two limit seats are reset. , push the flap to reset, then manually rotate the bottom end of the U-shaped pushing frame and the rotating frame to connect, take out the stamped cross rod, and put in the next cross rod to be stamped. The profiling device can automatically measure the diameter of the cross rod to be stamped by setting a profiling mechanism and an adjustment mechanism, and make the two limit seats close to each other, push the cross rod to be stamped to the bottom of the stamping die, reduce the stamping angle error, and thus improve the quality of the cross rod. At the same time, it can automatically clamp cross rods of different diameters without manual adjustment, thereby reducing labor intensity and improving stamping efficiency.

[0015] As a further solution of the present invention, the adjustable limit mechanism includes two mounting blocks, one of which has a threaded rod threadedly connected at the end of the mounting block, and the end of the threaded rod passes through the other mounting block and is rotatably connected to the mounting block, the end of the threaded rod is fixedly connected to a torsion block, and the ends of the two mounting blocks are slidably connected to a third sliding rod together, the tops of the mounting blocks are fixedly connected to a fixing rod, and the tops of the limit seats are provided with slots that are compatible with the fixing rods; during operation, after the two limit seats clamp the cross rod to be stamped, the distance between the two mounting blocks is adjusted by manually rotating the torsion block so that the distance between the two mounting blocks is the same as the distance between the two limit seats, and then the fixing rod on the mounting block is inserted into the slot. Since the distance between the two mounting blocks is adjustable, two limit seats with different spacings can be fixed, thereby improving the applicability and stability of the two limit seats in clamping the cross rod to be stamped.

[0016] As a further solution of the present invention, both ends of the limit seat are symmetrically fixedly connected with U-shaped fixing frames, and friction plates are fixedly connected inside the U-shaped fixing frames; during operation, by setting the friction plates, when the two limit seats are close to each other, the two friction plates move close to the sides of the cross rod to be stamped and clamp it, thereby increasing the friction force at its ends and preventing the cross rod from rotating during stamping, thereby improving the stability of the stamping.

[0017] As a further solution of the present invention, the friction plate is a rubber plate; during operation, since the friction plate is a rubber plate, when the two friction plates clamp the two ends of the cross rod, the surface of the friction plate is deformed due to the pressure and fits tightly with the outer side of the cross plate, thereby improving the clamping force of the friction plate on the cross rod and improving the stability of the stamping.

[0018] As a further solution of the present invention, the surface of the base is fixedly connected to a pressure-resistant plate; during operation, the pressure-resistant plate is provided to ensure the pressure resistance of the bottom surface during stamping, so that the bottom end of the cross rod is flat, thereby improving the quality of the cross rod.

[0019] As a further solution of the present invention, the top end of the limit seat is fixedly connected to an extension platform in a detachable manner; during operation, by setting the extension platform, it is ensured that the stamping part of the cross rod can be fully supported, avoiding the stamping position and the problem of twisting and deformation during stamping, thereby improving the quality of the cross rod.

[0020] As a further solution of the present invention, connecting holes are provided at the bottom ends of the rotating frame and the U-shaped pushing frame, and latches are slidably connected in the two connecting holes. During operation, by setting the connecting holes and latches, after the two limit seats clamp the cross rods, the latches and the connecting holes are manually cancelled, thereby canceling the connection relationship between the U-shaped pushing frame and the rotating frame to avoid interference during stamping.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention can automatically measure the diameter of the cross rod to be punched by setting a pressing mechanism and an adjusting mechanism, and make the two limit seats close to each other, so as to push the cross rod to be punched to the bottom of the punching die, reduce the punching angle error, and thus improve the quality of the cross rod. At the same time, it can automatically clamp cross rods of different diameters without manual adjustment, thereby reducing labor intensity and improving punching efficiency.

[0023] 2. The present invention sets an adjustable limit mechanism. When the two limit seats clamp the cross rod to be stamped, the distance between the two mounting blocks is adjusted by manually rotating the torsion block, so that the distance between the two mounting blocks is the same as the distance between the two limit seats. Then, the fixing rod on the mounting block is inserted into the slot. Since the distance between the two mounting blocks is adjustable, two limit seats with different spacings can be fixed, thereby improving the applicability and stability of the two limit seats in clamping the cross rod to be stamped.

[0024] 3. The present invention sets a friction plate. When the two limit seats are close to each other, the two friction plates move close to the side of the cross rod to be punched and clamp it, thereby increasing the friction force at its end and preventing the cross rod from rotating during punching, thereby improving the stability of punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0026] Figure 1 It is a first schematic diagram of the overall structure of the present invention;

[0027] Figure 2 for Figure 1 The enlarged view at A is a second schematic diagram of the overall structure of the present invention;

[0028] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0029] Figure 4 is a second schematic diagram of the overall structure of the present invention;

[0030] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0031] Figure 6 is a third schematic diagram of the overall structure of the present invention;

[0032] Figure 7 A diagram showing the connection between the adjustment mechanism and the limit seat in the present invention;

[0033] Figure 8 A diagram showing the connection between the limit seat and the U-shaped fixing plate in the present invention;

[0034] Fig. 9 A diagram showing the connection of the medium-pressure mechanism of the present invention;

[0035] Fig.10 This is a diagram showing the connection of the adjustable limiting mechanism in the present invention.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] Base 1, limit seat 2, U-shaped mounting frame 3, stamping cylinder 4, stamping die 5, T-shaped slide groove 6, U-shaped pushing frame 7, first slide bar 8, pushing flap 9, pushing plate 10, connecting block 11, second slide bar 12, reset spring 13, rotating frame 14, make way groove 15, mounting block 16, threaded rod 17, torsion block 18, third slide bar 19, fixing rod 20, slot 21, U-shaped fixing frame 22, friction plate 23, pressure-resistant plate 24, connecting hole 25, latch 26, extension platform 27. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-10 The present invention provides a technical solution: a cross-bar profiling device for a flat car for loading scrap steel, comprising a base 1, two limit seats 2 are symmetrically slidably connected to the surface of the base 1, a profiling mechanism is arranged on the surface of the base 1, and an adjustment mechanism is arranged on the profiling mechanism and the limit seat 2, and the profiling mechanism comprises a U-shaped mounting frame 3, the U-shaped mounting frame 3 is fixedly connected to the surface of the base 1, a stamping cylinder 4 is fixedly connected to the top of the U-shaped mounting frame 3, the bottom end of the telescopic rod of the stamping cylinder 4 penetrates the U-shaped mounting frame 3 and is slidably connected to the U-shaped mounting frame 3, and a detachable stamping die 5 is fixedly connected to the bottom end of the stamping cylinder 4;

[0040] The surface of the base 1 is symmetrically provided with a T-shaped slide groove 6, and the bottom end of the limit seat 2 is slidably connected in the T-shaped slide groove 6;

[0041] The adjustment mechanism includes a U-shaped push frame 7, both ends of the U-shaped push frame 7 are slidably connected with a first slide bar 8, the first slide bar 8 is fixedly connected in the inner groove of the U-shaped mounting frame 3, and the bottom end of the U-shaped push frame 7 is provided with a push flap 9;

[0042] Both ends of the push flap 9 are fixedly connected to the push plate 10, the bottom ends of the push plate 10 are rotatably connected to the surface of the base 1, the top of the push plate 10 is rotatably connected to a connecting block 11, the surface of the connecting block 11 is slidably connected to a second slide bar 12, the second slide bar 12 is respectively fixedly connected to the side wall of the limit seat 2, the surface of the second slide bar 12 is sleeved with a return spring 13, and the two ends of the return spring 13 are respectively fixedly connected to the limit seat 2 and the connecting block 11;

[0043] The top of the push flap 9 is fixedly connected with a rotating frame 14, and the rotating frame 14 is rotatably connected to the bottom of the U-shaped push frame 7 in a detachable manner;

[0044] The surface of the push flap 9 is provided with a clearance groove 15 for allowing the bottom end of the U-shaped push frame 7 to pass through;

[0045] The top ends of the two limit seats 2 are provided with adjustable limit mechanisms;

[0046] During operation, in the prior art, the staff is required to manually adjust the spacing between the clamps, and during the adjustment process, the cross rod is difficult to be stably located in the center of the forming mold, thereby increasing the error of the pressing angle and causing the quality of the produced cross rod to be reduced. The technical solution can solve the above problem. The specific operation is as follows: the cross rod to be stamped is placed on the surface of the base 1 and located between the two limit seats 2. Then, by starting the stamping cylinder 4, the bottom end of the telescopic rod of the stamping cylinder 4 drives the stamping die 5 to move downward, and the U-shaped pushing frame 7 moves downward along the first sliding rod 8. The bottom end of the U-shaped pushing frame 7 pushes The flap 9 is pushed to flip, and the push plate 10 is flipped. The connecting block 11 at the top moves downward along the second slide bar 12, and the reset spring 13 is compressed until the stamping die 5 contacts the top of the cross bar to be stamped. At this time, the two limit seats 2 are pushed by the push plate 10 to move closer to each other and limit the two sides of the cross bar to be stamped. Then, the adjustable limit mechanism is used to limit the two ends of the two limit seats 2 to ensure the stability of the two limit seats 2. Since the two limit seats 2 move closer to each other synchronously, the cross bar to be stamped can be stably located in the center of the forming mold, reducing the stamping angle error. Thereby improving the quality of the cross rod, the connection relationship between the U-shaped pushing frame 7 and the rotating frame 14 is then manually removed, and at the same time, the telescopic rod of the stamping cylinder 4 continues to move downward, and the bottom end of the U-shaped pushing frame 7 drives the stamping die 5 through the giving way groove 15, so that the surface of the cross rod forms an inward concave shape, completing the stamping, and at the same time, by opening the giving way groove 15, it is ensured that the stamping die 5 can move to the bottom. When the stamping is completed, the stamping cylinder 4 is started, so that the telescopic rod of the stamping cylinder 4 moves upward, so that the stamping die 5 is reset, and then the adjustable limit mechanism is manually removed. Under the action of the reset spring 13, the two The limit seat 2 is reset, and the push flap 9 is reset. Then the bottom end of the U-shaped pushing frame 7 and the rotating frame 14 are manually rotated and connected, the punched cross rod is taken out, and the next cross rod to be punched is put in. The profiling device can automatically measure the diameter of the cross rod to be punched by setting a profiling mechanism and an adjustment mechanism, and make the two limit seats 2 approach each other, and push the cross rod to be punched to the bottom of the stamping die 5, so as to reduce the punching angle error and improve the quality of the cross rod. At the same time, it can automatically clamp cross rods of different diameters without manual adjustment, thereby reducing labor intensity and improving stamping efficiency.

[0047] As a further solution of the present invention, the adjustable limiting mechanism includes two mounting blocks 16, wherein the end of one mounting block 16 is threadedly connected to a threaded rod 17, and the end of the threaded rod 17 passes through the other mounting block 16 and is rotatably connected to the mounting block 16, and the end of the threaded rod 17 is fixedly connected to a torsion block 18, and the ends of the two mounting blocks 16 are slidably connected to a third sliding rod 19, and the tops of the mounting blocks 16 are fixedly connected to a fixing rod 20, and the tops of the limiting seats 2 are provided with slots 21 that are compatible with the fixing rod 20; during operation, when the two limiting seats 2 clamp the cross rod to be stamped, the distance between the two mounting blocks 16 is adjusted by manually rotating the torsion block 18, so that the distance between the two mounting blocks 16 is the same as the distance between the two limiting seats 2, and then the fixing rod 20 on the mounting block 16 is inserted into the slot 21. Since the distance between the two mounting blocks 16 is adjustable, the two limiting seats 2 with different spacings can be fixed, thereby improving the applicability and stability of the two limiting seats 2 for clamping the cross rod to be stamped.

[0048] As a further solution of the present invention, both ends of the limit seat 2 are symmetrically fixedly connected with U-shaped fixing frames 22, and friction plates 23 are fixedly connected inside the U-shaped fixing frames 22; during operation, by setting the friction plates 23, when the two limit seats 2 are close to each other, the two friction plates 23 move close to the side of the cross rod to be stamped and clamp it, thereby increasing the friction force at its end, avoiding the cross rod from rotating during stamping, thereby improving the stability of stamping.

[0049] As a further solution of the present invention, the friction plate 23 is a rubber plate; during operation, since the friction plate 23 is a rubber plate, when the two friction plates 23 clamp the two ends of the cross rod, the surface of the friction plate 23 is deformed due to the pressure and fits tightly with the outer side of the cross plate, thereby improving the clamping force of the friction plate 23 on the cross rod and improving the stability of the stamping.

[0050] As a further solution of the present invention, the surface of the base 1 is fixedly connected to a pressure-resistant plate 24; during operation, the pressure-resistant plate 24 is provided to ensure the bottom surface's pressure resistance during stamping, so that the bottom end of the cross rod is flat, thereby improving the quality of the cross rod.

[0051] As a further solution of the present invention, the top end of the limit seat 2 is fixedly connected with an extension platform 27 in a detachable manner; during operation, by setting the extension platform 27, it is ensured that the stamping part of the cross rod can be fully supported, avoiding the stamping position and the problem of twisting and deformation during stamping, thereby improving the quality of the cross rod.

[0052] As a further solution of the present invention, a connecting hole 25 is provided at the bottom end of the rotating frame 14 and the U-shaped pushing frame 7, and a latch 26 is slidably connected in the two connecting holes 25; during operation, by setting the connecting holes 25 and the latch 26, when the two limit seats 2 clamp the cross rods, the latch 26 and the connecting holes 25 are manually cancelled, thereby canceling the connection relationship between the U-shaped pushing frame 7 and the rotating frame 14 to avoid interference during stamping.

[0053] Working principle: the cross rod to be punched is placed on the surface of the base 1 and located between the two limit seats 2. Then, the stamping cylinder 4 is started so that the bottom end of the telescopic rod of the stamping cylinder 4 drives the stamping die 5 to move downward, and the U-shaped pushing frame 7 moves downward along the first sliding rod 8. The bottom end of the U-shaped pushing frame 7 pushes the push flap 9 to flip over, and the push plate 10 flips over, and the connecting block 11 at its top moves downward along the second sliding rod 12. The reset spring 13 is compressed until the stamping die 5 contacts the top of the cross rod to be punched. At this time, the two limit seats 2 move closer to each other under the push of the pushing plate 10, and limit the two sides of the cross rod to be punched. Then, the adjustable limit mechanism is used to limit the two ends of the two limit seats 2, thereby ensuring the stability of the two limit seats 2. Since the two limit seats 2 move closer to each other synchronously, the cross rod to be punched can be stably in a The forming mold is centered to reduce the stamping angle error, thereby improving the quality of the cross rod. The U-shaped pushing frame 7 and the rotating frame 14 are then manually removed. At the same time, the telescopic rod of the stamping cylinder 4 continues to move downward, and the bottom end of the U-shaped pushing frame 7 drives the stamping die 5 through the make way groove 15, so that the surface of the cross rod forms an inward concave shape to complete the stamping. At the same time, by opening the make way groove 15, it is ensured that the stamping die 5 can move to the bottom. When the stamping is completed, the stamping cylinder 4 is started to make the telescopic rod of the stamping cylinder 4 move upward, so that the stamping die 5 is reset. The adjustable limit mechanism is then manually removed, and under the action of the reset spring 13, the two limit seats 2 are reset, and the flap 9 is pushed to reset. The bottom end of the U-shaped pushing frame 7 and the rotating frame 14 are then manually rotatably connected to take out the stamped cross rod and put in the next cross rod to be stamped.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cross-bar profiling device for a flat car for loading scrap steel, comprising a base (1), two limit seats (2) symmetrically slidably connected to the surface of the base (1), a profiling mechanism provided on the surface of the base (1), and adjustment mechanisms provided on both the profiling mechanism and the limit seats (2), characterized in that: The pressing mechanism comprises a U-shaped mounting frame (3), the U-shaped mounting frame (3) is fixedly connected to the surface of the base (1), the top of the U-shaped mounting frame (3) is fixedly connected to a punching cylinder (4), the bottom end of the telescopic rod of the punching cylinder (4) passes through the U-shaped mounting frame (3) and is slidably connected to the U-shaped mounting frame (3), and the bottom end of the punching cylinder (4) is fixedly connected to a detachable punching die (5); The surface of the base (1) is symmetrically provided with T-shaped sliding grooves (6), and the bottom end of the limit seat (2) is slidably connected in the T-shaped sliding grooves (6); The adjustment mechanism comprises a U-shaped pushing frame (7), both ends of the U-shaped pushing frame (7) are slidably connected to a first sliding rod (8), the first sliding rod (8) is fixedly connected to the inner groove of the U-shaped mounting frame (3), and the bottom end of the U-shaped pushing frame (7) is provided with a pushing flap (9); Both ends of the push flap (9) are fixedly connected to the push plate (10), the bottom ends of the push plate (10) are rotatably connected to the surface of the base (1), the top end of the push plate (10) is rotatably connected to a connecting block (11), the surface of the connecting block (11) is slidably connected to a second slide bar (12), the second slide bar (12) is respectively fixedly connected to the side wall of the limit seat (2), the surface of the second slide bar (12) is sleeved with a return spring (13), and the two ends of the return spring (13) are respectively fixedly connected to the limit seat (2) and the connecting block (11); The top end of the push flap (9) is fixedly connected to a rotating frame (14), and the rotating frame (14) is rotatably connected to the bottom end of the U-shaped push frame (7) in a detachable manner; The push flap (9) is provided with a clearance groove (15) on its surface to allow the bottom end of the U-shaped push frame (7) to pass through; The top ends of the two limit seats (2) are provided with adjustable limit mechanisms; The adjustable limiting mechanism comprises two mounting blocks (16), wherein an end of one of the mounting blocks (16) is threadedly connected to a threaded rod (17), the end of the threaded rod (17) passes through the other mounting block (16) and is rotatably connected to the mounting block (16), the end of the threaded rod (17) is fixedly connected to a torsion block (18), the ends of the two mounting blocks (16) are slidably connected to a third sliding rod (19), the top ends of the mounting blocks (16) are fixedly connected to a fixing rod (20), and the top ends of the limiting seats (2) are provided with slots (21) adapted to the fixing rod (20).

2. The cross-bar profiling device for a flat car for loading scrap steel according to claim 1, characterized in that: Both ends of the limit seat (2) are symmetrically fixedly connected to U-shaped fixing frames (22), and friction plates (23) are fixedly connected inside the U-shaped fixing frames (22).

3. The cross-bar profiling device for a flat car for loading scrap steel according to claim 2, characterized in that: The friction plate (23) is a rubber plate.

4. The cross-bar profiling device for a flat car for loading scrap steel according to claim 1, characterized in that: The surface of the base (1) is fixedly connected to a pressure-resistant plate (24).

5. The cross-bar profiling device for a flat car for loading scrap steel according to claim 1, characterized in that: The top end of the limiting seat (2) is fixedly connected to an extension platform (27) in a detachable manner.

6. The cross-bar profiling device for a flat car for loading scrap steel according to claim 1, characterized in that: The bottom ends of the rotating frame (14) and the U-shaped pushing frame (7) are both provided with connecting holes (25), and a latch (26) is slidably connected to the two connecting holes (25).

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