Collecting guide groove for rejecting steel

Abstract

The utility model relates to the technical field of steel classification, in particular to a collecting guide groove for rejecting steel, which comprises a base, a plurality of groove seats are fixedly arranged on the base, a first support, a second support and a third support are fixedly arranged at the tops of the groove seats, the top of the first support is obliquely arranged, and the top end of the first support is higher than the top end of the second support. The top end of the second support is higher than the top end of the third support, a first containing space is formed between the first support and the second support, a second containing space is formed between the second support and the third support, a first shielding rod is rotationally arranged on the second support, and the first shielding rod is used for sealing the first containing space. A second shielding rod is rotationally arranged on the second support and used for sealing the second containing space. The method has the advantages that the non-fixed-length steel detection and classification time is shortened, and the non-fixed-length steel classification efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel classification, in particular to a collecting guide trough for rejecting waste steel. Background Art

[0002] At present, after cold shearing, steel will produce two types of steel: cut-length steel and non-cut-length steel. The cut-length steel is collected as qualified products, while the non-cut-length steel is collected separately for subsequent processing. The collected non-cut-length steel is detected by laser to select the steel with a length of more than 9 meters. The non-cut-length steel with a length of more than 9 meters will be uniformly reorganized into 9-meter cut-length steel, thereby improving the production efficiency of steel.

[0003] In the related art, a Chinese patent with authorization announcement number CN205966547U provides a laser detection and classification device, which includes a conveyor belt, a light-isolating sheet is arranged on the conveyor belt, a plurality of light-transmitting grooves are formed on the light-isolating sheet, an upper laser area is arranged above the light-isolating sheet, and a lower detection area is arranged below the light-isolating sheet. Non-fixed-length steel is placed on the conveyor belt, and the non-fixed-length steel moves with the movement of the conveyor belt. When the non-fixed-length steel passes through the laser detection area, the number of light-transmitting grooves blocked by steel of different lengths is different, and then the steel of different lengths is judged according to whether there is laser passing through the light-transmitting groove between the upper laser area and the lower detection area. When the steel detection is completed, the conveyor belt is transported to the specified position according to the length of the steel.

[0004] In the process of implementing the present application, the inventors found that there are at least the following problems in the technology: if the conveyor belt carries multiple non-fixed-length steels at the same time and performs length inspection in sequence, it is easy to cause the conveyor belt to run in disorder. Therefore, after the current non-fixed-length steel is unloaded at the designated position, the next non-fixed-length steel can be placed on the upper conveyor belt for inspection and classification. Since the non-fixed-length steels are divided into two categories and the non-fixed-length steels are relatively long, not only two designated positions need to be set, but also these two designated positions need to have sufficient length to meet the operational requirements. In order for the conveyor belt to move the non-fixed-length steels to the designated positions, the conveyor belt must be laid with sufficient length, thereby extending the movement time of a single non-fixed-length steel on the conveyor belt and reducing the classification efficiency of the non-fixed-length steels. Utility Model Content

[0005] In order to shorten the inspection and classification time of non-standard-length steel materials and improve the classification efficiency of non-standard-length steel materials, the present application provides a collection guide trough for rejecting waste steel materials.

[0006] The present application provides a collection guide trough for steel waste rejection, which adopts the following technical solution:

[0007] A collecting guide trough for steel waste rejection comprises a base, a plurality of trough seats are fixedly arranged on the base, a first bracket, a second bracket and a third bracket are fixedly arranged on the top of the trough seats, the top of the first bracket is inclined, the top of the first bracket is higher than the top of the second bracket, the top of the second bracket is higher than the top of the third bracket, a first accommodating space is between the first bracket and the second bracket, a second accommodating space is between the second bracket and the third bracket, a first shielding rod is rotatably arranged on the second bracket, the first shielding rod is used to close the first accommodating space, a second shielding rod is rotatably arranged on the second bracket, the second shielding rod is used to close the second accommodating space.

[0008] By adopting the above technical solution, the base is installed below the output end of the conveyor belt. After the non-fixed-length steel completes the length detection on the light-isolating sheet, it moves out of the light-isolating sheet as the conveyor belt moves. When the length of the non-fixed-length steel is less than 9 meters, the second shielding rod will rotate to close the second accommodation space, and the first shielding rod will rotate to expose the first accommodation space. Therefore, the steel with a length of less than 9 meters will fall into the first accommodation space after leaving the light-isolating sheet. When the length of the non-fixed-length steel exceeds 9 meters, the second shielding rod will rotate to expose the second accommodation space. The first shielding rod rotates to close the first accommodating space, and the second shielding rod overlaps with the first shielding rod. Therefore, steel with a length of more than 9 meters will roll along the first shielding rod and the second shielding rod to the second accommodating space after leaving the light-isolating sheet, avoiding the situation of setting two designated positions for unloading, reducing the laying length of the conveyor belt, shortening the moving time of a single non-fixed-length steel on the conveyor belt, and improving the inspection and classification efficiency of non-fixed-length steel as a whole, and shortening the time-consuming inspection and classification of non-fixed-length steel.

[0009] Preferably, baffles are fixedly provided at both ends of the base, guide plates are rotatably provided between opposite surfaces of the baffles, and the top of the guide plate is connected to the top of the first bracket.

[0010] By adopting the above technical solution, the base is installed below the output end of the conveyor belt so that the top of the guide plate is flush with the top of the conveyor belt in a horizontal state. When the conveyor belt moves the non-fixed-size steel from the light-isolating thin plate to the guide plate, when all the non-fixed-size steel is moved to the guide plate, the guide plate rotates to allow the steel on the guide plate to roll freely toward the first bracket. If the length of the non-fixed-size steel is less than 9 meters, it will directly fall into the first accommodating space. If the length of the non-fixed-size steel exceeds 9 meters, it will roll along the first shielding rod and the second shielding rod to the second accommodating space.

[0011] Preferably, a connecting groove is provided at the bottom of the guide plate, a first connecting block and a second connecting block are slidably arranged in the connecting groove, a plurality of first cylinders are rotatably arranged at the bottom of the first connecting block, a plurality of second cylinders are rotatably arranged at the bottom of the second connecting block, and the first cylinders and the second cylinders are both fixedly connected to the base.

[0012] By adopting the above technical solution, the output shaft of the first cylinder and the output shaft of the second cylinder cooperate with each other to support the guide plate and achieve the effect of rotating the guide plate.

[0013] Preferably, a drive motor is fixedly arranged on the base, a drive shaft is fixedly arranged on the output shaft of the drive motor, the drive shaft passes through the second bracket, the first shielding rod and the second shielding rod are both fixedly connected to the drive shaft, and the first shielding rod and the second shielding rod are fixedly connected.

[0014] By adopting the above technical solution, the drive motor is started, and the output shaft of the drive motor drives the first shielding rod and the second shielding rod to rotate synchronously. When the length of the non-fixed-size steel is less than 9 meters, the first shielding rod and the second shielding rod rotate to expose the first accommodating space. When the length of the non-fixed-size steel exceeds 9 meters, the first shielding rod and the second shielding rod rotate to close the first accommodating space, and the first shielding rod and the second shielding rod connect the top of the first bracket and the second bracket, so that the steel rolls from the first bracket along the first shielding rod and the second shielding rod to the second bracket.

[0015] Preferably, a first clamping seat is fixedly provided on the side of the first bracket facing the second bracket, a first clamping groove is provided on the top of the first clamping seat, the first clamping groove passes through the side of the first clamping seat facing the second bracket, a first rubber layer is provided on the inner wall of the first clamping groove, and the first clamping groove is used for inserting the first shielding rod and the second shielding rod.

[0016] By adopting the above technical solution, when the length of non-fixed-size steel exceeds 9 meters, the first shielding rod and the second shielding rod are rotated into the first clamping groove, and then the first shielding rod and the second shielding rod close the first accommodating space, so that the steel rolls from the first bracket along the first shielding rod and the second shielding rod to the second bracket.

[0017] Preferably, a second clip seat is fixedly provided on the side of the third bracket facing the second bracket, a second clip slot is provided on the top of the second clip seat, the second clip slot passes through the second clip seat facing the second bracket, a second rubber layer is provided on the inner wall of the second clip slot, and the second clip slot is used for inserting the first shielding rod and the second shielding rod.

[0018] By adopting the above technical solution, when the length of the non-fixed-size steel is less than 9 meters, the first shielding rod and the second shielding rod are rotated into the second clamping groove, and then the first shielding rod and the second shielding rod close the second accommodating space, and the first accommodating groove is exposed, and then the steel rolls from the first bracket into the first accommodating space.

[0019] Preferably, the first bracket side wall and the second bracket side wall are both rotatably provided with a first buffer wheel, a first buffer belt is commonly provided on the first buffer wheel, a first buffer spring is provided at the end of the first buffer belt, and the bottom end of the first buffer spring is fixedly connected to the base.

[0020] By adopting the above technical solution, when there is no steel on the first buffer belt, the first buffer belt is relatively straight. When the steel falls into the first accommodating space, the steel rolls down on the first buffer belt one by one, and the first buffer belt gradually sinks downward. The first spring stretches under the action of the first buffer belt, and generates an opposite downward force to resist the tension generated by the first buffer belt, so that the first buffer belt is not easy to sink downward quickly, and then the first buffer belt plays a buffering role on the steel, reducing the pit defects on the steel surface caused by impact.

[0021] Preferably, the second buffer wheels are rotatably arranged on the side walls of the second bracket and the third bracket, second buffer belts are commonly arranged on the second buffer wheels, second buffer springs are arranged at the ends of the second buffer belts, and the bottom ends of the second buffer springs are fixedly connected to the base.

[0022] By adopting the above technical solution, when there is no steel on the second buffer belt, the second buffer belt is relatively straight. When the steel falls into the second accommodating space, the steel rolls down on the second buffer belt one by one, and the second buffer belt gradually sinks downward. The second spring stretches under the action of the second buffer belt, and generates an opposite downward force to resist the tension generated by the second buffer belt, so that the second buffer belt is not easy to sink downward quickly, and the second buffer belt plays a buffering role on the steel, thereby reducing the pit defects on the steel surface caused by impact.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By arranging the base, the slot seat, the first bracket, the second bracket, the third bracket, the first accommodating space, the second accommodating space, the first shielding rod and the second shielding rod, the situation of setting two designated positions for unloading is avoided, the laying length of the conveyor belt is reduced, and the moving time of a single non-fixed-length steel on the conveyor belt is shortened, which improves the detection and classification efficiency of non-fixed-length steel as a whole and shortens the time consumption of detection and classification of non-fixed-length steel;

[0025] 2. By setting the baffle plate and the guide plate, it is convenient for the non-fixed-length steel to fall into the first accommodation space or the second accommodation space;

[0026] 3. By setting a driving motor and a driving shaft, the first shielding rod and the second shielding rod can rotate synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a collection guide trough for steel waste removal in an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view showing the positional relationship between the first accommodation space and the second accommodation space in the embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view showing the connection relationship between the guide plate and the base in the embodiment of the present application.

[0030] Figure 4 yes Figure 3 Enlarged view of part A.

[0031] Figure 5 yes Figure 3 Magnified view of part B.

[0032] Explanation of the accompanying drawings: 1. base; 11. baffle; 2. slot seat; 21. first bracket; 22. second bracket; 23. third bracket; 3. first accommodating space; 31. first shielding rod; 4. second accommodating space; 41. second shielding rod; 5. guide plate; 51. connecting groove; 52. first connecting block; 521. first cylinder; 53. second connecting block; 531. second cylinder; 6. driving motor; 61. driving shaft; 7. first clamping seat; 71. first clamping groove; 72. first rubber layer; 8. second clamping seat; 81. second clamping groove; 82. second rubber layer; 91. first buffer belt; 911. first buffer wheel; 912. first buffer spring; 92. second buffer belt; 921. second buffer wheel; 922. second buffer spring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The present application embodiment discloses a collection guide trough for steel waste removal. Figures 1 to 3, which comprises a base 1, which is installed below the output end of the conveyor belt. A plurality of slot seats 2 are arranged along the length direction of the base 1 on the base 1, and the slot seats 2 are arranged along the width direction of the base 1. A first bracket 21, a second bracket 22 and a third bracket 23 are installed on the top of the slot seat 2, and the second bracket 22 is located between the first bracket 21 and the third bracket 23. The first bracket 21 and the second bracket 22 are between a first accommodating space 3, and the second bracket 22 and the third bracket 23 are between a second accommodating space 4. The top of the first bracket 21 is higher than the top of the second bracket 22, and the top of the second bracket 22 is higher than the top of the third bracket 23. The top of the first bracket 21 is tilted, and the side of the top of the first bracket 21 away from the second bracket 22 is higher than the side of the top of the first bracket 21 close to the second bracket 22. The top of the second bracket 22 is tilted, and the side of the top of the second bracket 22 close to the first bracket 21 is higher than the side of the top of the second bracket 22 close to the third bracket 23. A first shielding rod 31 is rotatably arranged on the second bracket 22, and the first shielding rod 31 is used to close the first accommodating space 3. The second shielding rod 41 is rotatably arranged on the second bracket 22, and the second shielding rod 41 is used to close the second storage space 4. After the non-fixed-length steel material completes the length detection on the light-isolating sheet, it moves out of the light-isolating sheet with the movement of the conveyor belt. When the length of the non-fixed-length steel material is less than 9 meters, the second shielding rod 41 will rotate to close the second storage space 4, and the first shielding rod 31 will rotate to expose the first storage space 3. Therefore, the steel material with a length less than 9 meters will fall into the first storage space 3 after leaving the light-isolating sheet. When the length of the non-fixed-length steel material exceeds 9 meters, the second shielding rod 41 will rotate to expose the second storage space 4, and the first shielding rod 31 will rotate to close the first storage space 3, and the second shielding rod 41 will overlap with the first shielding rod 31. Therefore, the steel material with a length exceeding 9 meters will roll down into the second storage space 4 along the first shielding rod 31 and the second shielding rod 41 after leaving the light-isolating sheet. It avoids the situation of setting two designated positions for unloading, reduces the laying length of the conveyor belt, shortens the moving time of a single non-fixed-length steel on the conveyor belt, improves the inspection and classification efficiency of non-fixed-length steel as a whole, and shortens the time spent on inspection and classification of non-fixed-length steel.

[0035] In order to facilitate the non-fixed-length steel to fall into the first accommodating space 3 or the second accommodating space 4, refer to Figures 1 to 3, baffles 11 are installed at both ends of the base 1, and guide plates 5 are installed between the opposite surfaces of the baffles 11, and the top of the guide plate 5 is connected to the top of the first bracket 21. A connecting groove 51 is provided at the bottom of the guide plate 5 along the width direction of the base 1, and a first connecting block 52 and a second connecting block 53 are slidably arranged in the connecting groove 51, and the first connecting block 52 and the second connecting block 53 both slide along the width direction of the base 1. The bottom of the first connecting block 52 is rotatably connected to a plurality of first cylinders 521, and the bottom of the second connecting block 53 is rotatably connected to a plurality of second cylinders 531. The bottom of the first cylinder 521 and the bottom of the second cylinder 531 are both fixedly connected to the base 1, and the first cylinder 521 is located between the first bracket 21 and the second bracket 22. When the conveyor belt moves the non-fixed-length steel from the light-isolating sheet to the guide plate 5, the output shaft of the first cylinder 521 and the output shaft of the second cylinder 531 cooperate with each other to keep the top of the guide plate 5 horizontal and flush with the top of the conveyor belt. When all the non-fixed-length steel materials are moved onto the guide plate 5, the output shaft of the first cylinder 521 and the output shaft of the second cylinder 531 cooperate with each other to move the guide plate 5 upward away from the first bracket 21, and connect the top of the guide plate 5 close to the first bracket 21 with the top of the first bracket 21, so that the steel materials on the guide plate 5 roll toward the first bracket 21. If the length of the non-fixed-length steel materials is less than 9 meters, they will directly fall into the first accommodation space 3. If the length of the non-fixed-length steel materials exceeds 9 meters, they will roll along the first shielding rod 31 and the second shielding rod 41 into the second accommodation space 4.

[0036] In order to make the first shielding rod 31 and the second shielding rod 41 rotate synchronously, refer to Figures 1 to 5, a driving motor 6 is installed on the base 1, and a driving shaft 61 is installed on the output shaft of the driving motor 6. The driving shaft 61 passes through the second bracket 22, and the driving shaft 61 is rotatably connected to the second bracket 22 through a bearing. The first shielding rod 31 and the second shielding rod 41 are both fixedly connected to the driving shaft 61, and the first shielding rod 31 and the second shielding rod 41 on the same second bracket 22 are fixedly connected. A first clamping seat 7 is installed on the side of the first bracket 21 facing the second bracket 22, and a first clamping groove 71 is provided on the top of the first clamping seat 7, and the first clamping groove 71 passes through the side of the first clamping seat 7 facing the second bracket 22. A first rubber layer 72 is pasted on the inner wall of the first clamping groove 71, and the first clamping groove 71 is used for the first shielding rod 31 and the second shielding rod 41 to be inserted. A second clamping seat 8 is installed on the side of the third bracket 23 facing the second bracket 22, and a second clamping groove 81 is provided on the top of the second clamping seat 8, and the second clamping groove 81 passes through the side of the second clamping seat 8 facing the second bracket 22. The second rubber layer 82 is adhered to the inner wall of the second clamping groove 81, and the first shielding rod 31 and the second shielding rod 41 are inserted into the second clamping groove 81. The drive motor 6 is started, and the output shaft of the drive motor 6 drives the first shielding rod 31 and the second shielding rod 41 to rotate synchronously. When the length of the non-fixed-length steel exceeds 9 meters, the first shielding rod 31 and the second shielding rod 41 rotate into the first clamping groove 71, and then the first shielding rod 31 and the second shielding rod 41 close the first accommodating space 3, so that the steel rolls from the first bracket 21 along the first shielding rod 31 and the second shielding rod 41 to the second bracket 22. When the length of the non-fixed-length steel is less than 9 meters, the first shielding rod 31 and the second shielding rod 41 rotate into the second clamping groove 81, and the first shielding rod 31 and the second shielding rod 41 close the second accommodating space 4, and the first accommodating groove is exposed, and then the steel rolls from the first bracket 21 into the first accommodating space 3.

[0037] In order to reduce the pit defects caused by impact on the steel surface, refer to Figures 1 to 3, the first buffer wheel 911 is rotatably provided on the side wall of the first bracket 21 and the side wall of the second bracket 22, and the first buffer belt 91 is wound around the first buffer wheel 911 on the same slot seat 2. The first buffer spring 912 is installed at the end of the first buffer belt 91, and the bottom end of the first buffer spring 912 is welded to the base 1. The second buffer wheel 921 is rotatably provided on the side wall of the second bracket 22 and the side wall of the third bracket 23, and the second buffer belt 92 is wound around the second buffer wheel 921 on the same slot seat 2. The second buffer spring 922 is installed at the end of the second buffer belt 92, and the bottom end of the second buffer spring 922 is welded to the base 1. When there is no steel on the first buffer belt 91, the first buffer belt 91 is relatively straight. When the steel falls into the first accommodating space 3, the steel rolls down on the first buffer belt 91 one by one, and the first buffer belt 91 gradually sinks downward. When there is no steel on the second buffer belt 92, the second buffer belt 92 is relatively straight. When the steel falls into the second accommodating space 4, the steel rolls down on the second buffer belt 92 one by one, and the second buffer belt 92 gradually sinks downward. The first buffer belt 91 and the second buffer belt 92 play a buffering role for the steel, reducing the pit defects on the surface of the steel caused by impact.

[0038] The implementation principle of a collection guide trough for rejecting steel in an embodiment of the present application is as follows: after the length of the non-fixed-size steel is detected on the light-isolating sheet, it is moved out of the light-isolating sheet as the conveyor belt moves. When the conveyor belt moves the non-fixed-size steel from the light-isolating sheet to the guide plate 5, the top of the guide plate 5 remains horizontal, and the top of the guide plate 5 is flush with the top of the conveyor belt. When all the non-fixed-size steel is moved onto the guide plate 5, the output shaft of the first cylinder 521 and the output shaft of the second cylinder 531 cooperate with each other to move the guide plate 5 upward away from the side of the first bracket 21, and the top of the guide plate 5 close to the first bracket 21 is connected to the top of the first bracket 21, so that the steel on the guide plate 5 rolls toward the first bracket 21. When the length of the non-fixed-length steel exceeds 9 meters, the first shielding rod 31 and the second shielding rod 41 rotate into the first clamping groove 71, and then the first shielding rod 31 and the second shielding rod 41 close the first accommodation space 3, so that the steel rolls from the first bracket 21 along the first shielding rod 31 and the second shielding rod 41 to the second bracket 22, and then the steel exceeding 9 meters rolls into the second accommodation space 4. When the length of the non-fixed-length steel is less than 9 meters, the first shielding rod 31 and the second shielding rod 41 rotate into the second clamping groove 81, and the first shielding rod 31 and the second shielding rod 41 close the second accommodation space 4, and the first accommodation groove is exposed, and then the steel rolls from the first bracket 21 into the first accommodation space 3. It avoids the situation of setting two designated positions for unloading, reduces the laying length of the conveyor belt, shortens the moving time of a single non-fixed-length steel on the conveyor belt, and improves the detection and classification efficiency of non-fixed-length steel as a whole, and shortens the time consumption of detection and classification of non-fixed-length steel.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A collection guide trough for steel waste rejection, comprising a base (1), characterized in that: A plurality of slot seats (2) are fixedly arranged on the base (1); a first bracket (21), a second bracket (22) and a third bracket (23) are fixedly arranged on the top of the slot seats (2); the top of the first bracket (21) is arranged obliquely; the top of the first bracket (21) is higher than the top of the second bracket (22); the top of the second bracket (22) is higher than the top of the third bracket (23); a first accommodating space (3) is formed between the first bracket (21) and the second bracket (22); a second accommodating space (4) is formed between the second bracket (22) and the third bracket (23); a first shielding rod (31) is rotatably arranged on the second bracket (22); the first shielding rod (31) is used to close the first accommodating space (3); a second shielding rod (41) is rotatably arranged on the second bracket (22); the second shielding rod (41) is used to close the second accommodating space (4).

2. A collection guide trough for rejecting steel waste according to claim 1, characterized in that: The ends of the base (1) are fixedly provided with baffles (11), and guide plates (5) are rotatably provided between opposite surfaces of the baffles (11), and the top of the guide plate (5) is connected to the top of the first bracket (21).

3. A collection guide trough for rejecting steel waste according to claim 2, characterized in that: A connecting groove (51) is provided at the bottom of the guide plate (5), a first connecting block (52) and a second connecting block (53) are slidably arranged in the connecting groove (51), a plurality of first cylinders (521) are rotatably arranged at the bottom of the first connecting block (52), and a plurality of second cylinders (531) are rotatably arranged at the bottom of the second connecting block (53), and the first cylinders (521) and the second cylinders (531) are both fixedly connected to the base (1).

4. The collection guide trough for rejecting steel waste according to claim 1, characterized in that: A driving motor (6) is fixedly arranged on the base (1), a driving shaft (61) is fixedly arranged on the output shaft of the driving motor (6), the driving shaft (61) passes through the second bracket (22), the first shielding rod (31) and the second shielding rod (41) are both fixedly connected to the driving shaft (61), and the first shielding rod (31) and the second shielding rod (41) are fixedly connected.

5. The collection guide trough for rejecting steel waste according to claim 4, characterized in that: A first clamping seat (7) is fixedly arranged on the side of the first bracket (21) facing the second bracket (22); a first clamping groove (71) is provided on the top of the first clamping seat (7); the first clamping groove (71) penetrates the side of the first clamping seat (7) facing the second bracket (22); a first rubber layer (72) is provided on the inner wall of the first clamping groove (71); and the first shielding rod (31) and the second shielding rod (41) are inserted into the first clamping groove (71).

6. A collection guide trough for rejecting steel waste according to claim 4, characterized in that: A second clamping seat (8) is fixedly arranged on the side of the third bracket (23) facing the second bracket (22); a second clamping groove (81) is provided on the top of the second clamping seat (8); the second clamping groove (81) penetrates the side of the second clamping seat (8) facing the second bracket (22); a second rubber layer (82) is provided on the inner wall of the second clamping groove (81); and the first shielding rod (31) and the second shielding rod (41) are inserted into the second clamping groove (81).

7. The collection guide trough for rejecting steel waste according to claim 1, characterized in that: The first buffer wheel (911) is rotatably arranged on the side wall of the first bracket (21) and the side wall of the second bracket (22); a first buffer belt (91) is commonly arranged on the first buffer wheel (911); a first buffer spring (912) is arranged at the end of the first buffer belt (91); and the bottom end of the first buffer spring (912) is fixedly connected to the base (1).

8. The collection guide trough for rejecting steel waste according to claim 1, characterized in that: The side walls of the second bracket (22) and the third bracket (23) are both rotatably provided with second buffer wheels (921), the second buffer belts (92) are jointly provided on the second buffer wheels (921), the ends of the second buffer belts (92) are both provided with second buffer springs (922), and the bottom ends of the second buffer springs (922) are fixedly connected to the base (1).

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