Classification screening device for waste steel recovery

Abstract

The utility model discloses a classifying and screening device for waste steel recovery. The classifying and screening device comprises a machine frame and a feeding port. Through cooperative arrangement of the collision block and the first spring, the collision block is driven by the conveyor to move, and the collision block can be inserted into a gap between the two rolling shafts under extrusion of the first spring, so that scrap steel fragments which are clamped but not pressed between the two rolling shafts can be extruded out through large elastic force of the first spring; through the cooperative arrangement of the force measuring sensor and the sliding block, when the force measuring sensor detects the pressure of the same position for multiple times, the collision block can stay at the position, and then the linear actuator II lifts and collides the sliding block for multiple times, so that the collision block can be driven to collide the scrap steel fragments at the position; and finally, the scrap steel fragments clamped in the gaps of the rolling shafts are knocked off. And the rolling shaft is driven by the telescopic vibration mechanism to vibrate up and down, so that the screening effect on the scrap steel fragments is further improved, and the situation that the fragments above cannot be screened due to the fact that large fragments are stacked at the bottom is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of scrap steel classification and screening, in particular to a classification and screening device for scrap steel recycling. Background Technique

[0002] Scrap steel refers to the steel waste that does not become a product during the production process of steel plants. After the scrap steel is recycled, it needs to be crushed, and the crushed materials need to be screened according to the volume size of the materials to meet the requirements of subsequent processing.

[0003] The existing classification and screening device for scrap steel recycling, such as a scrap steel screening device with the patent number CN219051477U, uses a number of rolling sleeves so that the scrap steel fragments can be screened after passing over them. However, the fragments are easily stuck between the two sleeves. After the subsequent scrap steel fragments fall and press down, the fragments are stuck more firmly, and even cause the two rollers that hold the fragments to stop rotating, resulting in a worse classification and screening effect for the size of the scrap steel fragments. Content of the Utility Model

[0004] Based on this, it is necessary to provide a classification and screening device for scrap steel recycling in view of the above technical problems.

[0005] To achieve the above object, the utility model provides a classification and screening device for scrap steel recycling, which includes a frame and a feed inlet. An inclined mounting frame is arranged inside the frame, and a number of rollers are rotatably mounted on the mounting frame. The feed inlet is located above the mounting frame. A telescopic vibration mechanism is mounted on the frame and is connected to the mounting frame. A conveyor is mounted on the frame. The output end of the conveyor is mounted with a square sleeve. A collision block is slidably connected inside the square sleeve. A force sensor is mounted inside the square sleeve. A first spring is mounted on the force sensor, and the output end of the first spring is connected to the collision block. The collision block is arranged in cooperation with the mounting frame. Mounting sleeves are mounted at both ends of the collision block. Sliders are slidably clamped inside the mounting sleeves. A second spring is mounted inside the mounting sleeves, and the output end of the second spring is connected to the sliders. Through grooves are arranged on both sides of the frame, and the sliders can extend out of the frame from the through grooves. Chamfers are arranged on both sides of the sliders. A linear actuator is mounted on the frame, and the output end of the linear actuator is mounted with a sliding seat. A second linear actuator is mounted on the sliding seat and is arranged in cooperation with the slider.

[0006] Preferably, the telescopic vibration mechanism includes a first sleeve and a second sleeve. A first sleeve shaft is slidably connected inside the first sleeve, and the output end of the first sleeve shaft is connected to one side of the mounting frame. A third spring is mounted inside the first sleeve, and one end of the third spring is connected to the first sleeve shaft. A second sleeve shaft is slidably connected inside the second sleeve, and the output end of the second sleeve shaft is connected to the side of the mounting frame away from the first sleeve shaft. A fourth spring is mounted inside the second sleeve, and the output end of the fourth spring is connected to the second sleeve shaft. The first sleeve shaft and the second sleeve shaft are connected by a connecting rod.

[0007] Preferably, guide plates are installed on both sides of the mounting frame, and the guide plates are located on both sides of the roller.

[0008] Preferably, support grooves are provided on both sides of the frame, support shafts are installed on both sides of the square sleeve, and the support shafts slide in the support grooves.

[0009] Preferably, a first storage box is provided below the mounting frame.

[0010] Preferably, a second storage box is provided at the output end of the mounting frame.

[0011] Compared with the prior art, the technical solution of the present invention has at least the following beneficial effects:

[0012] Through the cooperative setting of the impact block and the first spring, the conveyor drives the impact block to move, and under the extrusion of the first spring, the impact block can be inserted into the gap between the two rollers, so that the large elastic force of the first spring can squeeze out the scrap steel fragments that are stuck but not tightly pressed between the two rollers;

[0013] Through the cooperative setting of the force measuring sensor and the slider, when the force measuring sensor detects the pressure at the same position multiple times, the impact block can stay at this position, and then the linear actuator two lifts and impacts the slider multiple times, so that the impact block can be driven to impact the scrap steel fragments at this position, and finally the scrap steel fragments stuck in the roller gap are knocked off;

[0014] The telescopic vibration mechanism drives the roller to vibrate up and down, thereby further improving the screening effect of the scrap steel fragments and avoiding the situation that large fragments accumulate at the bottom and the upper fragments cannot be screened. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of an embodiment of the present invention;

[0016] Figure 2 is a top view cross-sectional view of the slider of an embodiment of the present invention;

[0017] Figure 3 is a side view cross-sectional view of the square sleeve of an embodiment of the present invention;

[0018] Figure 4 is a side view cross-sectional view of the first sleeve and the second sleeve of an embodiment of the present invention;

[0019] Figure 5 is a front view of an embodiment of the present invention;

[0020] In the figure, 1 is the frame; 2 is the feed inlet; 3 is the mounting bracket; 4 is the conveyor; 5 is the square sleeve; 6 is the impact block; 7 is the first spring; 8 is the mounting sleeve; 9 is the slider; 10 is the second spring; 11 is the through groove; 12 is the linear actuator; 13 is the sliding seat; 14 is the second linear actuator; 15 is the first sleeve; 16 is the second sleeve; 17 is the first sleeve shaft; 18 is the third spring; 19 is the second sleeve shaft; 20 is the fourth spring; 21 is the connecting rod; 22 is the guide plate; 23 is the support groove; 24 is the support shaft; 25 is the first storage box; 26 is the second storage box; 27 is the force sensor; 28 is the roller; 29 is the convex block. Detailed implementation mode

[0021] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation mode of the present utility model will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0022] Please refer to Figures 1 to 5, an embodiment of the present application provides a classification and screening device for scrap steel recycling, including a frame 1 and a feed inlet 2. An inclined mounting frame 3 is provided inside the frame 1, and a number of rollers 28 are rotatably mounted on the mounting frame 3. The feed inlet 2 is located above the mounting frame 3. A telescopic vibration mechanism is mounted on the frame 1 and is connected to the mounting frame 3. A conveyor 4 is mounted on the frame 1. The conveyor 4 can be a belt conveyor or a chain conveyor with a servo motor as the motor. A square sleeve 5 is mounted on the conveyor 4. A collision block 6 is slidably connected inside the square sleeve 5. A force measuring sensor 27 is mounted inside the square sleeve 5. The force measuring sensor 27 can be a pressure sensor. A first spring 7 is mounted on the force measuring sensor 27. The first spring 7 should be a strong spring. The output end of the first spring 7 is connected to the collision block 6. The collision block 6 is arranged in cooperation with the mounting frame 3. When the collision block 6 passes through the gap between the two rollers 28, it can be compressed and reset by squeezing the arc surface of the roller 28. And through the setting of the telescopic vibration mechanism, the roller 28 can drive the mounting frame 3 to move up a certain distance for the collision block 6 to pass through. Installation sleeves 8 are mounted at both ends of the collision block 6. Sliders 9 are slidably clamped inside the installation sleeves 8. A second spring 10 is mounted inside the installation sleeves 8. The output end of the second spring 10 is connected to the slider 9. Through grooves 11 are provided on both sides of the frame 1. The slider 9 can extend out of the frame 1 from the through groove 11. Chamfers are provided on both sides of the slider 9. A linear actuator 12 is mounted on the frame 1. The linear actuator 12 can be an electric slide. The output end of the linear actuator 12 is mounted with a slide seat 13. A second linear actuator 14 is mounted on the slide seat 13. The second linear actuator 14 can be an electric cylinder. The second linear actuator 14 is arranged in cooperation with the slider 9. The force measuring sensor 27, the linear actuator 12, the second linear actuator 14, etc. should all be signal-connected through a signal processor, so as to facilitate the cleaning work.

[0023] In this embodiment, the scrap steel fragments falling from the feed inlet 2 land on the mounting frame 3, and then the telescopic vibration mechanism drives the mounting frame 3 to vibrate and screen. When the telescopic vibration mechanism drives the mounting frame 3 to vibrate, due to the impact of the falling scrap steel fragments on the mounting frame 3, the vibration of the mounting frame 3 is irregular vibration. The conveyor 4 can drive the impact block 6 sliding in the square sleeve 5 to extrude and remove the scrap steel fragments stuck in the mounting frame 3. The first spring 7 always exerts extrusion on the impact block 6, enabling the impact block 6 to extend between the two rollers 28 to extrude the fragments; when the impact block 6 detects the extrusion caused by the first spring 7 between the two rollers 28 multiple times, the force sensor 27 can record and transmit a signal. Then, the second linear actuator 14 on the sliding seat 13 installed at the output end of the linear actuator 12 is driven to move to a specified position. After the conveyor 4 drives the impact block 6 to move to the same position and stops working, the sliders 9 extruded by the second spring 10 in the mounting sleeves 8 on both sides of the impact block 6 extend out from the through groove 11 on the frame 1. Thus, the output end of the second linear actuator 14 can repeatedly impact one end of the extended slider 9, and finally the impact block 6 can remove the scrap steel fragments stuck firmly between the rollers 28; the chamfer settings on both sides of the mounting sleeve 9 enable it to be squeezed back into the mounting sleeve 8 when it moves to the edge of the through groove 11; when the second linear actuator 14 repeatedly impacts the slider 9, the height of the impact block 6 and the slider 9 can be detected in cooperation with the reading of the force sensor 27, so as to adjust the extrusion and lifting height of the second linear actuator 14.

[0024] In some embodiments, to improve the vibration screening effect of the rollers 28 on the scrap steel fragments, the telescopic vibration mechanism is provided to include a first sleeve 15 and a second sleeve 16. A first sleeve shaft 17 is slidably connected in the first sleeve 15. The output end of the first sleeve shaft 17 is connected to one side of the mounting frame 3. A third spring 18 is installed in the first sleeve 15. One end of the third spring 18 is connected to the first sleeve shaft 17. A second sleeve shaft 19 is slidably connected in the second sleeve 16. The output end of the second sleeve shaft 19 is connected to the side of the mounting frame 3 away from the first sleeve shaft 17. A fourth spring 20 is installed in the second sleeve 16. The output end of the fourth spring 20 is connected to the second sleeve shaft 19. The first sleeve shaft 17 and the second sleeve shaft 19 are connected by a connecting rod 21. The first sleeve 15 and the second sleeve 16 with different lengths and the first sleeve shaft 17 and the second sleeve shaft 19 sliding therein achieve the tilting effect of the mounting frame 3. At the same time, through the pulling effects of the third spring 18 and the fourth spring 20 on the first sleeve shaft 17 and the second sleeve shaft 19, when the mounting frame 3 is impacted and lowered by the scrap steel fragments, it can be pulled back by the third spring 18 and the fourth spring 20 through the first sleeve shaft 17 and the second sleeve shaft 19 respectively; to improve the linkage between the first sleeve shaft 17 and the second sleeve shaft 19 and avoid greater damage to the third spring 18 closer to the output end of the feed inlet 2, the first sleeve shaft 17 and the second sleeve shaft 19 are connected together by the connecting rod 21, enabling the mounting frame 3 and all parts of the rollers 28 to rise and fall synchronously.

[0025] In some embodiments, to enable the scrap steel fragments to be screened by the roller 28 instead of directly falling from both sides of the mounting frame 3, guide plates 22 are installed on both sides of the mounting frame 3, and the guide plates 22 are located on both sides of the roller 28.

[0026] In some embodiments, to improve the supporting effect on the square sleeve 5 that is pressed downward by the impact block 6, support grooves 23 are provided on both sides of the frame 1, and support shafts 24 are installed on both sides of the square sleeve 5. The support shafts 24 slide in the support grooves 23. Thus, through the supporting effect of the support shafts 24, the impact block 6 and the square sleeve 5 are not easily broken.

[0027] In some embodiments, to facilitate the collection of the scrap steel fragments after being screened by the roller 28, a first storage box 25 is provided below the mounting frame 3, and a second storage box 26 is provided at the output end of the mounting frame 3.

[0028] In some embodiments, to facilitate further improving the cleaning effect on the stuck scrap steel fragments, a convex block 29 is installed on the top of the impact block 6. The shape of the gap between the convex block 29 and the two rollers 28 is similar. Thus, the impact block 6 can be set wider to prevent breakage, and the scrap steel fragments can be better extruded through the convex block 29.

[0029] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

Claims

1. A classification and screening device for scrap steel recycling, comprising a frame (1) and a feed inlet (2). An inclined mounting frame (3) is arranged inside the frame (1), and a plurality of rollers (28) are rotatably mounted on the mounting frame (3). The feed inlet (2) is located above the mounting frame (3), and it is characterized in that, A telescopic vibration mechanism is installed on the frame (1). The telescopic vibration mechanism is connected to the mounting frame (3). A conveyor (4) is installed on the frame (1). A square sleeve (5) is installed at the output end of the conveyor (4). A collision block (6) is slidably connected inside the square sleeve (5). A force measuring sensor (27) is installed inside the square sleeve (5). A first spring (7) is installed on the force measuring sensor (27). The output end of the first spring (7) is connected to the collision block (6). The collision block (6) is arranged in cooperation with the mounting frame (3). Mounting sleeves (8) are installed at both ends of the collision block (6). Sliders (9) are slidably clamped inside the mounting sleeves (8). A second spring (10) is installed inside the mounting sleeves (8). The output end of the second spring (10) is connected to the slider (9). Through grooves (11) are provided on both sides of the frame (1). The slider (9) can extend out of the frame (1) from the through groove (11). Chamfers are provided on both sides of the slider (9). A linear actuator (12) is installed on the frame (1). The output end of the linear actuator (12) is installed with a sliding seat (13). A second linear actuator (14) is installed on the sliding seat (13). The second linear actuator (14) is arranged in cooperation with the slider (9).

2. The classification and screening device for scrap steel recycling according to claim 1, wherein, The telescopic vibration mechanism includes a first sleeve (15) and a second sleeve (16). A first sleeve shaft (17) is slidably connected inside the first sleeve (15). The output end of the first sleeve shaft (17) is connected to one side of the mounting frame (3). A third spring (18) is installed inside the first sleeve (15). One end of the third spring (18) is connected to the first sleeve shaft (17). A second sleeve shaft (s19) is slidably connected inside the second sleeve (16). The output end of the second sleeve shaft (19) is connected to the side of the mounting frame (3) away from the first sleeve shaft (17). A fourth spring (20) is installed inside the second sleeve (16). The output end of the fourth spring (20) is connected to the second sleeve shaft (19). The first sleeve shaft (17) and the second sleeve shaft (19) are connected by a connecting rod (21).

3. The classification and screening device for scrap steel recycling according to claim 1, characterized in that, Guide plates (22) are installed on both sides of the mounting frame (3).

4. The classification and screening device for scrap steel recycling according to claim 1, wherein, Support grooves (23) are provided on both sides of the frame (1). Support shafts (24) are installed on both sides of the square sleeve (5). The support shafts (24) slide inside the support grooves (23).

5. The classification and screening device for scrap steel recycling according to claim 1, wherein A first storage box (25) is provided below the mounting frame (3). A second storage box (26) is provided at the output end of the mounting frame (3).

6. The classification and screening device for scrap steel recycling according to claim 1, characterized in that, A convex block (29) is installed on the top of the collision block (6).

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