Screening device for scrap iron recovery

Abstract

The utility model discloses a screening device for scrap iron recovery, which relates to the technical field of scrap iron recovery and comprises a mounting rack and a support, the bottom end of the support is fixedly connected with the top end of the mounting rack, the top end of the support is fixedly connected with a feed hopper, a conveyor belt is arranged below the support, two ends of the conveyor belt are respectively provided with two transmission rollers, and the transmission rollers are arranged on the support. And one end of the transmission roller is fixedly connected with a servo motor I. The scrap iron mixture is conveyed to the discharge port area through the arranged opening and closing mechanism, at the moment, the controller starts the air cylinder, the opening and closing door is driven to rotate through the linkage block and the connecting rod, and in the process, the mounting frame rotates on the mounting block in cooperation with the motion trail of the air cylinder; the opening size of the opening and closing door is adjusted and controlled, excessive discharging of small materials caused by too large openings can be avoided, blocking of large materials caused by too small openings can be prevented, and therefore continuity and timeliness of magnetic roller sorting operation are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to scrap iron recycling technical field, concretely is a kind of screening device for scrap iron recycling. BACKGROUND

[0002] The screening device for scrap iron recycling is a special equipment for automatically classifying and sorting mixed scrap metals, and its goal is to efficiently separate ferromagnetic substances (such as scrap iron and steel chips) from non-magnetic impurities (such as plastics, rubber and non-ferrous metals). In the field of metal recycling and material sorting, magnetic roller type sorting equipment is widely used due to its high separation efficiency for ferromagnetic substances.

[0003] When the prior art screens iron substances, the discharge outlet of the discharge hopper needs to rely on a fixed-opening-size discharge device for discharging. However, in actual operation, scrap iron mixtures are often mixed in sizes. For example, the mixing of large pieces and debris causes two problems: first, when the opening is too large, small pieces of material are discharged in excess, exceeding the instantaneous adsorption capacity of the magnetic roller, causing sorting omissions; second, when the opening is too small, large pieces of material are easily accumulated at the discharge outlet, causing blockage, forcing the equipment to stop for cleaning, affecting sorting efficiency and continuity. Therefore, we provide a screening device for scrap iron recycling to solve the above problems. SUMMARY

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a screening device for scrap iron recycling.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a screening device for scrap iron recycling, comprising a mounting frame and a support, the bottom end of the support is fixedly connected with the top end of the mounting frame, and the top end of the support is fixedly connected with a feed hopper, a conveyor belt is arranged below the support, and two transmission rollers are arranged at the two ends of the conveyor belt respectively, one end of the transmission roller is fixedly connected with a servo motor one, two supporting rollers are arranged on the inner side of the conveyor belt respectively, and a discharge hopper is arranged below the transmission belt, an opening and closing mechanism is arranged at the outlet of the discharge hopper, and a sorting box is arranged below the discharge hopper, a magnetic roller is rotatably connected in the sorting box, one end of the magnetic roller is fixedly connected with a servo motor two, an air outlet pipe and a partition plate are fixedly connected to the inner wall of the sorting box respectively, and a scraping mechanism is arranged on the inner wall of the sorting box, two collection boxes are arranged at the bottom of the sorting box respectively.

[0006] The opening and closing mechanism comprises a mounting frame, a cylinder, a linkage block, a connecting rod and an opening and closing door, the inner side of the mounting frame is fixedly connected with the outer side of the cylinder, the output end of the cylinder is rotatably connected to the inner side of the linkage block through a rotating shaft, one end of the linkage block is fixedly connected with one end of the connecting rod, and the other end of the connecting rod is fixedly connected with the outer side of the opening and closing door.

[0007] The two sides of the mounting frame are rotatably connected with mounting blocks through pivots, and one end of the mounting block is fixedly connected with the outside of the discharge hopper.

[0008] The top end of the opening and closing door is rotatably connected with the two sides of the discharge hopper through pivots, and the opening and closing door is in the shape of a sector.

[0009] The scraping mechanism comprises a scraper, a guide block, a fixed rod and a spring one, one side of the scraper is fixedly connected with one end of the guide block, and two ends of the scraper are fixedly connected with one end of the two fixed rods respectively, and the outer wall of the fixed rod is fixedly connected with one end of the two springs one respectively.

[0010] The working end of the scraper is close to the outer wall of the magnetic roller, and the two sides of the guide block are slidably connected with containing frames.

[0011] The inside of the containing frame is fixedly connected with a spring two, and the containing frame is fixedly connected with the sorting box.

[0012] Compared with the prior art, the screening device for waste iron recovery has the following beneficial effects:

[0013] First, the opening and closing mechanism is arranged, the waste iron mixture is conveyed to the discharge port area, at this time the controller starts the air cylinder, drives the opening and closing door to perform a rotating action through the linkage block and the connecting rod, in this process, the mounting frame rotates on the mounting block in cooperation with the movement track of the air cylinder, the opening size of the opening and closing door is adjusted and controlled, too large opening can avoid too much small material from being discharged, and too small opening can prevent large material from being blocked, so that the continuity and timeliness of the magnetic roller sorting operation are ensured.

[0014] Second, the scraping mechanism is arranged, in the sorting process, the non-ferrous material is blown to one side of the vertical partition plate by the air pipe, so as to fall into the specified collection box, finally, the controller energizes the magnetic roller and starts the servo motor two to drive the magnetic roller to continuously rotate to enhance the iron adsorption area, when the magnetic roller surface adsorbs iron filings, the working end of the scraper moves along the containing frame to perform the iron removal operation under the elastic support of the spring one and the spring two, the removed iron filings are guided into another collection box through the partition plate, the adsorption efficiency of the magnetic roller is maintained, the automatic classification and collection of iron and non-ferrous materials are realized, the manual intervention demand is reduced, and the all-weather continuous operation of the equipment is ensured.

[0015] Other advantages, objects and features of the present application will be apparent to those skilled in the art in view of the following detailed description, and in some respects will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The whole three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 The local three-dimensional structure schematic diagram of the utility model;

[0018] Figure 3 The opening and closing mechanism and connecting piece three-dimensional structure schematic diagram of the utility model;

[0019] Figure 4 The scraping mechanism and connecting piece three-dimensional structure schematic diagram of the utility model.

[0020] In the figure: 1, mounting frame; 2, support; 3, feed hopper; 4, conveying belt; 5, transmission roller; 6, servo motor one; 7, supporting roller; 8, opening and closing mechanism; 801, mounting frame; 802, air cylinder; 803, linkage block; 804, connecting rod; 805, opening and closing door; 9, scraping mechanism; 901, scraper; 902, guide block; 903, fixed rod; 904, spring one; 10, discharge hopper; 11, sorting box; 12, magnetic roller; 13, servo motor two; 14, air outlet pipe; 15, partition plate; 16, collection box; 17, mounting block; 18, containing frame; 19, spring two. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] As Figures 1-4 shown, the utility model provides a kind of technical scheme: a kind of screening device for scrap iron recycling, including mounting frame 1 and support 2, the bottom end of support 2 is fixedly connected with the top end of mounting frame 1, and the top end of support 2 is fixedly connected with feed hopper 3, support 2 below is provided with conveying belt 4, and the two ends of conveying belt 4 are provided with two transmission rollers 5 respectively, one end of transmission roller 5 is fixedly connected with servo motor one 6, the inner side of conveying belt 4 is provided with two supporting rollers 7 respectively, and the lower portion of transmission belt is provided with discharge hopper 10, discharge hopper 10 is provided with opening and closing mechanism 8 at outlet, and discharge hopper 10 below is provided with sorting box 11, sorting box 11 is rotatably connected with magnetic roller 12 in the inside, and one end of magnetic roller 12 is fixedly connected with servo motor two 13, and discharge hopper 10 is provided with air outlet pipe 14 and partition plate 15 respectively on the inner wall, and sorting box 11 is provided with scraping mechanism 9 on the inner wall, and sorting box 11 is provided with two collection boxes 16 respectively at the bottom.

[0023] Firstly, the controller starts the servo motor 6 to drive the transmission roller 5 to drive the conveyor belt 4 to run, and then the waste iron mixture is put into the conveyor belt 4 through the feeding hopper 3, and the waste iron mixture is conveyed to the discharge port area. At this time, the controller starts the opening and closing mechanism 8 to accurately control the outlet size of the discharge hopper 10, so as to avoid too large opening size leading to excessive discharge of small block materials, and also to prevent too small opening size causing large block materials to be blocked, thereby ensuring the continuity and timeliness of the separation operation of the magnetic roller 12. Secondly, during the separation process, the exhaust pipe 14 blows the non-ferrous materials to one side of the vertical partition plate 15, so as to fall into the designated collection box 16. Finally, the controller energizes the magnetic roller 12 and starts the servo motor 2 to drive the magnetic roller 12 to continuously rotate to increase the iron adsorption area. When the magnetic roller 12 surface adsorbs iron filings, the scraping mechanism 9 moves along the containing frame 18 to perform the iron removal operation. The removed iron filings are guided into another collection box 16 through the partition plate 15, thereby maintaining the adsorption efficiency of the magnetic roller 12 and realizing the automatic classification and collection of iron and non-ferrous materials, which significantly reduces the need for manual intervention and ensures the all-weather continuous operation of the equipment.

[0024] As shown in Figures 1-3 , the opening and closing mechanism 8 includes a mounting frame 801, a cylinder 802, a linkage block 803, a connecting rod 804 and an opening and closing door 805. The inner side of the mounting frame 801 is fixedly connected with the outer side of the cylinder 802, and the output end of the cylinder 802 is rotatably connected with the inner side of the linkage block 803 through a rotating shaft. One end of the linkage block 803 is fixedly connected with one end of the connecting rod 804, and the other end of the connecting rod 804 is fixedly connected with the outer side of the opening and closing door 805. The two sides of the mounting frame 801 are rotatably connected with mounting blocks 17 through rotating shafts, and one end of the mounting block 17 is fixedly connected with the outer side of the discharge hopper 10. The top end of the opening and closing door 805 is rotatably connected with the two sides of the discharge hopper 10 through a rotating shaft, and the opening and closing door 805 is in the shape of a fan.

[0025] The controller starts the cylinder 802 to drive the opening and closing door 805 to perform a rotating action through the linkage block 803 and the connecting rod 804. In this process, the mounting frame 801 rotates on the mounting block 17 in cooperation with the movement track of the cylinder 802, so as to control the opening size of the opening and closing door 805, thereby avoiding too large opening size leading to excessive discharge of small block materials, and also preventing too small opening size causing large block materials to be blocked, thereby ensuring the continuity and timeliness of the separation operation of the magnetic roller 12.

[0026] As shown in Figure 1 , Figure 2 , and Figure 4As shown, the scraping mechanism 9 comprises a scraper 901, a guide block 902, fixed rods 903 and springs 904, one side of the scraper 901 is fixedly connected with one end of the guide block 902, both ends of the scraper 901 are fixedly connected with one end of the two fixed rods 903 respectively, the outer walls of the fixed rods 903 are fixedly connected with one end of the two springs 904 respectively, the working end of the scraper 901 is close to the outer wall of the magnetic roller 12, both sides of the guide block 902 are slidably connected with containing frames 18, the containing frames 18 are fixedly connected with springs 19 inside, and the containing frames 18 are fixedly connected with the sorting box 11.

[0027] The controller energizes the magnetic roller 12 and starts the servo motor 13, drives the magnetic roller 12 to rotate continuously to enhance the iron adsorption area, when the magnetic roller 12 surface adsorbs iron filings, the working end of the scraper 901 drives the guide block 902 to move along the containing frame 18 to perform the iron removal work under the elastic support of the spring 904 and the spring 19, the scraped iron filings are guided into another collecting box 16 through the partition plate 15, the adsorption efficiency of the magnetic roller 12 is maintained, the automatic classification and collection of iron and non-iron materials are realized, the manual intervention demand is significantly reduced, and the all-weather continuous operation of the equipment is ensured.

[0028] Working principle: first, the controller starts the servo motor 6, drives the transmission roller 5 to drive the conveyor belt 4 to run, then the waste iron mixture is put into the conveyor belt 4 through the feeding hopper 3, the waste iron mixture is conveyed to the discharge port area, at this time the controller starts the air cylinder 802, drives the opening and closing door 805 to perform the rotating action through the linkage block 803 and the connecting rod 804, in this process, the mounting frame 801 rotates on the mounting block 17 in cooperation with the movement track of the air cylinder 802 to realize the regulation of the opening size of the opening and closing door 805, secondly, in the sorting process, the non-iron material is blown to one side of the vertical partition plate 15 through the air outlet pipe 14, so as to fall into the specified collecting box 16, finally, the controller energizes the magnetic roller 12 and starts the servo motor 13, drives the magnetic roller 12 to rotate continuously to enhance the iron adsorption area, when the magnetic roller 12 surface adsorbs iron filings, the working end of the scraper 901 drives the guide block 902 to move along the containing frame 18 to perform the iron removal work under the elastic support of the spring 904 and the spring 19, the scraped iron filings are guided into another collecting box 16 through the partition plate 15, the adsorption efficiency of the magnetic roller 12 is maintained.

[0029] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A screening device for scrap iron recovery comprising a mounting frame (1) and a support (2), characterized in that: The bottom end of the support (2) is fixedly connected with the top end of the mounting frame (1), and the top end of the support (2) is fixedly connected with the feeding hopper (3), the lower portion of the support (2) is provided with the conveying belt (4), and the two ends of the conveying belt (4) are respectively provided with two transmission rollers (5), one end of the transmission roller (5) is fixedly connected with the servo motor (6), the inner side of the conveying belt (4) is respectively provided with two supporting rollers (7), and the lower portion of the transmission belt is provided with the discharging hopper (10), the outlet of the discharging hopper (10) is provided with the opening and closing mechanism (8), and the lower portion of the discharging hopper (10) is provided with the sorting box (11), the inner portion of the sorting box (11) is rotatably connected with the magnetic roller (12), one end of the magnetic roller (12) is fixedly connected with the servo motor (13), the inner wall of the sorting box (11) is respectively fixedly connected with the air outlet pipe (14) and the partition plate (15), and the inner wall of the sorting box (11) is provided with the scraping mechanism (9), and the bottom portion of the sorting box (11) is respectively provided with two collecting boxes (16).

2. A screening device for scrap iron recycling as claimed in claim 1, wherein: The opening and closing mechanism (8) comprises a mounting frame (801), a pneumatic cylinder (802), a linkage block (803), a connecting rod (804) and an opening and closing door (805), the inner side of the mounting frame (801) is fixedly connected with the outer side of the pneumatic cylinder (802), and the output end of the pneumatic cylinder (802) is rotatably connected to the inner side of the linkage block (803) through a rotating shaft, one end of the linkage block (803) is fixedly connected with one end of the connecting rod (804), and the other end of the connecting rod (804) is fixedly connected with the outer side of the opening and closing door (805).

3. A screening device for scrap iron recycling as claimed in claim 2, wherein: The two sides of the mounting frame (801) are rotatably connected with the mounting block (17) through a rotating shaft, and one end of the mounting block (17) is fixedly connected with the outer side of the discharging hopper (10).

4. A screening device for scrap iron recovery as claimed in claim 2, wherein: The top end of the opening and closing door (805) is rotatably connected to the two sides of the discharging hopper (10) through a rotating shaft, and the opening and closing door (805) is in the shape of a fan.

5. A screening device for scrap iron recovery as claimed in claim 1, wherein: The scraping mechanism (9) comprises a scraper (901), a guide block (902), a fixed rod (903) and a spring (904), one side of the scraper (901) is fixedly connected with one end of the guide block (902), and the two ends of the scraper (901) are respectively fixedly connected with one end of the two fixed rods (903), and the outer wall of the fixed rod (903) is respectively fixedly connected with one end of the two springs (904).

6. A screening device for scrap iron recycling according to claim 5, characterized in that: The working end of the scraper (901) is closely attached to the outer wall of the magnetic roller (12), and the two sides of the guide block (902) are slidably connected with the containing frame (18).

7. A screening device for scrap iron recycling according to claim 6, characterized in that: The inner portion of the containing frame (18) is fixedly connected with the spring (19), and the containing frame (18) is closely attached to the sorting box (11).

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