An intelligent production line and method for recycling scrap steel bars

Abstract

The present invention discloses an intelligent scrap steel bar recycling and reuse production line and method, comprising: a base portion, including a ground as a main body, the upper surface of which is provided with two sets of first and second tracks; a diameter classification portion, mounted on the base portion, comprising a small-diameter screening box and a large-diameter screening box for screening steel bars of different diameters; a length classification portion, mounted on the base portion, comprising a small-diameter length screening box and a large-diameter length screening box for screening steel bars of different lengths; and a layered transfer portion, comprising a transfer chassis and a layered transfer box, for transporting steel bars classified by diameter by the diameter classification portion to the length classification portion, and transporting steel bars classified by length by the length classification portion to a regeneration and processing portion. The present invention can realize the recycling and reuse of scrap steel short bars, significantly saving the manpower and material resources required for scrap steel bar recycling and processing, and improving efficiency and the scrap steel bar recycling and utilization rate.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to an intelligent production line for recycling and reusing scrap steel bars, and also to an intelligent production method for recycling and reusing scrap steel bars. Background Art

[0002] A large number of steel bars are often used in construction projects. It is common to use short steel bars or use short materials as waste at construction sites, which leads to excessive damage to the short steel bars and produces a large number of waste short steel bars. When cutting longer steel bars, a large number of shorter steel bars will also be left. If these short steel bars are directly discarded as waste, it will cause a waste of resources.

[0003] Therefore, there is a need for an intelligent scrap steel bar recycling and reuse production line and method that can recycle, classify and reuse scrap short steel bars. Summary of the Invention

[0004] Based on the deficiencies in the above-mentioned prior art, the technical problem to be solved by the present invention is to provide an intelligent scrap steel bar recycling and reuse production line, which can integrate the diameter classification, length classification, layered transportation, and regeneration processing mechanisms of scrap short steel bars on a production line base. Through the mutual cooperation between various mechanisms, the scrap steel bars can be automatically subjected to diameter screening, primary transportation, length screening, secondary transportation, classified storage, clamping and use, and regeneration processing after being put into the diameter screening part, to produce regenerated steel bars that meet the standard length and diameter and can be directly used, thereby realizing the recycling and reuse of scrap short steel bars, greatly saving the manpower and material resources required for the recycling and processing of scrap steel bars, and improving the efficiency and recycling rate of scrap steel bars.

[0005] Another object of the present invention is to provide an intelligent scrap steel bar recycling and reuse production method, which can be directly applied in the existing scrap short steel bar recycling and reuse process. With the assistance of construction personnel, the steel bar regeneration and reinforcement process is carried out to produce recycled steel bars that meet the required length and diameter. The regenerated steel bars are then placed in a recycled classification storage box for retrieval, effectively improving the recycling efficiency of scrap steel bars and saving energy and reducing emissions.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0007] The intelligent scrap steel bar recycling and reuse production line of the present invention comprises: a base part, comprising a ground as a main body, the upper surface of the ground is provided with two sets of first tracks and second tracks; a diameter classification part, installed on the base part, comprising a small diameter screening box and a large diameter screening box, for completing the screening of steel bars of different diameters; a length classification part, installed on the base part, comprising a small diameter length screening box and a large diameter length screening box, for completing the screening of steel bars of different lengths; a layered transfer part, comprising a transfer chassis and a layered transfer box, the transfer chassis is installed on the first track and the second track by an electric trolley, for transferring the diameter classification part after the diameter classification is completed The steel bars of different categories are transported to the length classification part, and the steel bars that have completed length screening in the length classification part are transported to the recycling processing part; the recycling processing part includes a number of pillars installed on the ground, the pillars are provided with an I-shaped top plate, the bottom surface of the I-shaped top plate is provided with a corresponding I-shaped track, the I-shaped track is provided with a number of electric clamping claw groups, and the ground below the I-shaped top plate is provided with a number of waste classification storage boxes, steel bar bending machines and steel bar welding machines, and recycled classification storage boxes, the electric clamping claw group clamps the scrap steel bars from the waste classification storage box and moves them to the steel bar bending machine and steel bar welding machine for bending or welding processes, and moves the processed steel bars to the recycling classification storage box.

[0008] Preferably, the end track of the two first tracks near the middle of the ground extends to the bottom of the small diameter screening box and the large diameter screening box of the diameter classification part, and the end track near the edge of the ground extends to one side of the small diameter length screening box and the large diameter length screening box of the length classification part, and an electric push rod group is provided around this end; the second track is an L-shaped track, and its vertical track, that is, the end of the side near the edge of the ground extends to the bottom of the length screening box, and its horizontal track, that is, the side near the middle of the ground extends a number of storage interfaces to the left waste classification storage box, and each storage interface is near a group of electric push rod groups; a layered transfer part is provided on both groups of first tracks and the second track.

[0009] Furthermore, the main structure of the small-diameter screening box is the same as that of the large-diameter screening box, except that the diameters of the long strip screening holes on the first screening layer, the second screening layer, and the third screening layer are different; the small-diameter screening box includes four support rods, and a longitudinal screening rotary motor mounting plate is connected between the upper parts of the left and right groups of support rods. A screening rotary motor is connected to the outer middle part of the screening rotary motor mounting plate, and the output shaft of the screening rotary motor passes through the screening rotary motor mounting plate and is connected to the screening box body in the middle.

[0010] Furthermore, the diameter of the screening holes in the first screening layer in the small-diameter screening box is the smallest, and the diameters of the screening holes in the second and third screening layers below it increase successively; the first screening layer, the second screening layer, and the third screening layer are a screening plate, one end of which is provided with a stepper motor group on the outside, the stepper motor group includes a screening rack track arranged on one side of the screening plate and a screening stepper motor arranged on the screening box body near it, the screening stepper motor is engaged with the screening rack track through a gear, and the screening stepper motor can be controlled to drive the gear on it to rotate on the screening rack track, thereby controlling the screening plate to be inserted into or withdrawn from the screening box body.

[0011] Preferably, the general structure of the small diameter length screening box and the large diameter length screening box is the same as that of the small diameter screening box, except that the screening layer one, screening layer two and screening layer three are changed into three layers of different length screening layers, which are provided with a number of length screening holes, and the length of the length screening holes on the three layers of length screening layers increases from top to bottom.

[0012] Furthermore, the transfer chassis includes a transfer box support base, and the transfer box support base is provided with inward-facing transfer box fixed electric clamps on all four sides, and the transfer box fixed electric clamps are used to clamp the fixed clamping seats at the bottom of the layered transfer box; the layered transfer box is composed of a transfer box body as the main body, and four fixed clamping seats are provided in the middle of the bottom surface of the transfer box body, and the positions correspond to the fixed electric clamps of the transfer box. At the same time, four electric push rod group lifting seats are provided on the periphery of the bottom surface of the transfer box body, and the positions of the electric push rod group lifting seats correspond to the electric push rod group. When the layered transfer part moves to the top of the electric push rod group, the electric push rod group can be lifted so that its push rod is inserted into the electric push rod group lifting seat to lift the entire layered transfer box.

[0013] Preferably, the top of the layered transfer box is set to be open, and the interior is divided into three layers by a sloped plug-in plate, and the transfer box body is provided with three corresponding openings on one side near the bottom of the sloped plug-in plate, and a layered baffle is provided on the outside of each opening, and a rack track is provided on one side of the layered baffle, and a baffle stepper motor is provided on the outer surface of the transfer box body near the rack track, and the output shaft of the baffle stepper motor is connected to a gear, which is engaged with the rack track by the gear to control the up and down lifting and closing of the layered baffle; an inward rack track is provided on one side of the sloped plug-in plate, and a plug-in stepper motor is provided on the outer surface of the transfer box body near the rack track, and a gear is provided on the output shaft of the plug-in stepper motor, which is engaged with the rack track on the sloped plug-in plate, and the gear can be controlled to rotate on the rack track to control the sloped plug-in plate to move left and right in the box, thereby realizing the opening and closing of the three-layer storage space in the box.

[0014] Accordingly, the present invention also provides an intelligent production method for recycling and reusing scrap steel bars, the steps of which are as follows:

[0015] S1. Diameter screening: When diameter screening is required, the steel bars within a certain length that have been initially screened as small or large diameter are placed in the screening box. At this time, the first, second and third screening layers are all closed. The layered transfer part is moved to the bottom of the rectangular opening below the third screening layer, and preparations are made for receiving the materials. At this time, the screening box is about to screen out the first batch of classified steel bars, and the sloped plugs on the top and second layers are controlled by the plug-in stepper motor to open, so that the steel bars fall directly into the space above the sloped plug-in plates on the bottom layer. At the same time, the second and third screening layers are opened by the stepper motor group, and the screening rotary motor is controlled to run. The screening rotary motor drives the screening box to rotate and screen, and the steel bars with the minimum diameter that meet the diameter of the screening hole on the first screening layer are screened and fall into the bottom layer of the layered transfer box. After all screening is completed, the second screening layer is closed, and the first screening layer is opened. The remaining steel bars fall into the space above the second screening layer. At the same time, the sloped plug-in plates on the second layer are closed, ready to receive the steel bars for the second screening. The three-layer screening plate of its length screening box is opened, so that the non-compliant steel bars pass directly through the length screening box and fall into the tiered transfer box on the second track below it. The transfer box then sends the steel bars to the designated waste classification storage box at the storage interface for storage;

[0016] S2. One-time transfer: When it is necessary to transport the steel bars that have completed diameter classification to the length classification part for length screening, the layered transfer part filled with the steel bars that have completed diameter screening is controlled to move to the vicinity of the length classification part, and the electric push rod group near it is aligned with the electric push rod group lifting seat at the bottom of the layered transfer box, the transfer box fixing electric clamp is released, and the electric push rod group is started to insert the push rod into the electric push rod group lifting seat, so that the layered transfer box is lifted and separated from the transfer chassis. After it is raised to a suitable height, steel bars can be unloaded. The layered baffle can be opened three times by the baffle stepper motor according to needs, so that the steel bars stored in the box slide into the small diameter length screening box or the large diameter length screening box through the sloped insert plate, and then screened. After adding one layer of steel bars, it is necessary to wait for the length screening box to screen the steel bars of the same diameter into three lengths of steel bars and store them all in the layered transfer part in the second track before the next layer of steel bars can be added;

[0017] S3. Length screening: When the steel bars slip and fall into the small diameter length screening box or the large diameter length screening box, length screening can be performed at this time. The same as the diameter screening method mentioned above, the three-layer screening plate is opened and closed in turn to screen the steel bars of different lengths, and they are stored in turn in the three-layer storage space of the layered transfer part on the second track. The layered transfer part sends the steel bars of the same diameter but different lengths into the waste classification storage box for storage, and then opens the second-layer layered baffle of the layered transfer box on the first track to perform length screening of the steel bars of the next diameter. Similarly, after the screening is completed, the length of the steel bars of the bottom diameter are screened, and after completion, the length of the steel bars are transferred and stored. A total of three screenings are performed. Therefore, in fact, the waste classification storage box on the small diameter screening production line can be divided into nine types of steel bars of different diameters and lengths. At the same time, there is an extended storage box for steel bars of non-compliant diameters. The same is true for the large diameter screening production line.

[0018] S4, secondary transfer: When the layered transfer part is full of steel bars that have completed length screening and needs to be stored for classified steel bars, it is controlled to come to the storage interface near the corresponding waste classification storage box, and the electric push rod group near it is controlled to push the layered transfer box to a suitable height, open the layered baffle of the corresponding layer so that the steel bars of this layer fall into the waste classification storage box, and then lower the electric push rod group and continue to store the steel bars of the next layer. After all storage is completed, the layered transfer part is moved back to the bottom of the corresponding length screening box to prepare for the next screening and storage;

[0019] S5. Regeneration processing: After the screening and storage process is completed, the steel bar needs to be recycled. The electric gripper group can be moved on the work-type track to the top of the corresponding waste classification storage box, and the electric gripper is lowered by the electric push rod on it. The scrap steel bar is clamped by the electric gripper, and the electric push rod is retracted and moved to the vicinity of the steel bar bending machine and steel bar welding machine by the electric trolley. Bending or welding processes are performed with manual assistance as needed to form longer steel bars or other types of steel bars that can be used directly. After completion, the electric gripper group clamps the processed steel bars and moves them to the recycled classification storage box. The electric gripper is released to make it fall into the box for storage. At this point, the entire scrap steel bar recycling and reuse process is completed.

[0020] From the above, the beneficial effects of the intelligent scrap steel bar recycling production line and method of the present invention are as follows:

[0021] 1. Compared with the existing technology, the present invention connects the diameter classification part with the length classification part through the first track, and connects the length classification part with the waste classification storage box through the second track and the storage interface thereon, so that the scrap short steel bars can be quickly classified by diameter, length and classified storage after being placed in the diameter screening box and other mechanisms, which is highly efficient and convenient for the subsequent standardized recycled steel bar production.

[0022] 2. The small-diameter screening box and large-diameter screening box designed in the present invention can screen the scrap short steel bars in multiple layers and multiple times, and store them in categories. In conjunction with the layered transfer part, short steel bars of different diameters can be separated and stored, and then further length screening is carried out through the small-diameter length screening box and the large-diameter length screening box. Each screening line can eventually obtain nine types of steel bars with different diameters and lengths, plus one type of non-compliant scrap steel bars stored separately. The two screening lines can obtain a total of twenty boxes of scrap steel bars of different types. The extremely detailed classification of scrap steel bars greatly improves the efficiency of subsequent steel bar recycling production and processing and the quality of finished products, and effectively improves the recycling efficiency and the utilization rate of scrap steel bars. The number of sieve plate layers of the screening box can also be changed according to actual needs to cope with more types of length and diameter segmentation requirements.

[0023] 3. The layered transfer part involved in the present invention is composed of a transfer chassis and a layered transfer box that can be separated from each other. The electric clamp fixed to the transfer box on the transfer chassis can clamp and release the layered transfer box in time, so that the electric push rod group lifting seat at the bottom of the layered transfer box can cooperate with the electric push rod group to lift the entire transfer box for unloading in time, and the three-layered baffles and sloped plug-in plates in the box cooperate with the baffle stepper motor and the plug-in plate stepper motor to realize three-layer space classification storage in the box, effectively coping with the transfer of 3x3 groups of classified steel bars layered by diameter screening and length screening, greatly improving the transfer and screening efficiency, and at the same time cooperating with multiple groups of waste classification storage boxes to realize efficient classification storage of scrap steel bars.

[0024] 4. The work-type area set in the recycling and processing part involved in the present invention effectively divides the waste storage area, recycling processing area, and finished product storage area into the upper horizontal, middle vertical, and lower horizontal areas of the work-type, so that the work-type track can cover them all, and then the electric clamping claw group can quickly clamp the steel bars in the waste classification storage box to the vicinity of the steel bar bending machine and steel bar welding machine for recycling processing. After completion, they can be quickly put back into the recycling classification storage for retrieval, cyclic processing and production, and greatly improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

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

[0027] Figure 2 It is a structural schematic diagram of the base portion of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the diameter classification part of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the small diameter screening box of the present invention;

[0030] Figure 5 A partial enlarged view of the stepping motor assembly of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the length classification part of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the small diameter length screening box of the present invention;

[0033] Figure 8 It is a structural schematic diagram of the layered transport part of the present invention;

[0034] Figure 9 It is a structural schematic diagram of the transfer chassis of the present invention;

[0035] Figure 10 It is a front bottom view of the layered transfer box of the present invention;

[0036] Figure 11 It is a rear top view of the layered transfer box of the present invention;

[0037] Figure 12 It is a structural schematic diagram of the regeneration processing part of the present invention.

[0038] Description of reference numerals:

[0039] 1000-base part:

[0040] 1001 - ground; 1002 - first track; 1003 - second track; 1003a - storage interface; 1004 - electric push rod assembly;

[0041] 2000-Diameter classification part:

[0042] 2100- small diameter screening box;

[0043] 2101-support rod; 2102-screening rotary motor mounting plate; 2103-screening rotary motor; 2104-screening box; 2105a-screening layer 1; 2105b-screening layer 2; 2105c-screening layer 3; 2106-stepping motor assembly; 2106a-screening stepping motor; 2106b-screening rack track;

[0044] 2200-large diameter screening box;

[0045] 3000-Length Classification Section:

[0046] 3100- small diameter length screening box; 3101- length screening layer; 3101a- length screening hole;

[0047] 3200-large diameter and length screening box;

[0048] 4000-Layered Transfer Section:

[0049] 4100-transfer chassis; 4101-transfer box support base; 4102-transfer box fixed electric gripper;

[0050] 4200 - Layered transfer box; 4201 - Transfer box body; 4201a - Fixed clamping seat; 4201b - Electric push rod assembly lifting seat; 4202a - Layered baffle; 4202b - Baffle stepping motor; 4203a - Slope plug-in plate; 4203b - Plug-in plate stepping motor;

[0051] 5000-Regeneration processing part:

[0052] 5001-pillar; 5002-I-type top plate; 5003-I-type track; 5004-electric gripper assembly; 5005-waste classification storage box; 5006-recycled classification storage box; 5007-steel bending machine; 5008-steel welding machine. DETAILED DESCRIPTION

[0053] In order to facilitate ordinary technicians in this field to understand and implement the present invention, the present invention is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the implementation examples described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0054] Next, combine Figures 1 to 12 The present invention provides an intelligent production line and method for recycling and reusing scrap steel bars.

[0055] Depend on Figure 1 As shown, the intelligent scrap steel bar recycling and reuse production line of the present invention includes a base part 1000 as an overall support, and a diameter classification part 2000, a length classification part 3000, a layered transfer part 4000, and a regeneration processing part 5000 installed thereon.

[0056] Depend on Figure 2As shown, the base part 1000 includes a ground 1001 as the main body, and two groups of first tracks 1002 and second tracks 1003 are provided on the upper surface of the ground 1001. The direction here is that the first track 1002 is on the left and the second track 1003 is on the right. The two groups of tracks divide the space on the ground into two parts, front and back; the end tracks of the two first tracks 1002 close to the middle of the ground 1001 extend to the bottom of the two diameter screening boxes of the diameter classification part 2000, and the end tracks close to the edge of the ground 1001 extend to one side of the two length screening boxes of the length classification part 3000, and an electric push rod group 1004 is provided around this end. The second track 1003 is an L-shaped track, and its vertical track, that is, the end of the side close to the edge of the ground, extends to the bottom of the length screening box, and its horizontal track, that is, the side close to the middle of the ground, extends a number of storage interfaces 1003a to the left side of the waste classification storage box 5005, and there is a group of electric push rod groups 1004 near each storage interface 1003a; both groups of first tracks 1002 and the second track 1003 are provided with a layered transfer part 4000.

[0057] The purpose of setting up this structure is that when the diameter classification part 2000 is screening, the layered transfer part 4000 on the first track 1002 can be controlled to move to the bottom of the small diameter screening box 2100 or the large diameter screening box 2200, and the screening box and the mechanism on the transfer box cooperate to complete the screening of steel bars of different diameters, and store them in the layered transfer box 4200 according to the classification method. The layered transfer part 4000 is moved to the end of the first track 1002 near the length classification part 3000, and the electric push rod group 1004 near it is raised to move the layered transfer part 4000 to the bottom of the small diameter screening box 2100 or the large diameter screening box 2200. 0 is raised, and the steel bars of different diameters are sequentially placed into the small diameter length screening box 3100 or the large diameter length screening box 3200 for screening through the internal mechanism of the box. After screening, the layered transfer part 4000 on the second track 1003 collects and classifies the steel bars whose lengths have been classified, and transports them to the end of the storage interface 1003a. The layered transfer part 4000 is pushed up and its baffle is opened through the electric push rod group 1004 nearby, so that the stored diameter and length classified steel bars are placed in different waste classification storage boxes 5005, which are convenient for subsequent standardized recycling processing.

[0058] Compared with the existing technology, the present invention connects the diameter classification part 2000 with the length classification part 3000 through the first track 1002, and connects the length classification part 3000 with the waste classification storage box 5005 through the second track 1003 and the storage interface 1003a thereon, so that the scrap short steel bars can be quickly classified by diameter, length and classified storage after being placed in the diameter screening box and other mechanisms, which is highly efficient and convenient for the subsequent standardized recycled steel bar production.

[0059] Depend on Figure 3-7 As shown, the diameter classification part 2000 includes a small-diameter screening box 2100 and a large-diameter screening box 2200 as the main body. The main structure of the small-diameter screening box 2100 and the large-diameter screening box 2200 is the same, except that the diameters of the long strip screening holes on the first screening layer 2105a, the second screening layer 2105b, and the third screening layer 2105c are different; the small-diameter screening box 2100 includes four support rods 2101, and a longitudinal screening rotating motor mounting plate 2102 is connected between the upper parts of the left and right groups of support rods. The screening rotary motor 2103 is connected to the outer side of the middle part of the screening rotary motor mounting plate 2102, and the output shaft of the screening rotary motor 2103 passes through the screening rotary motor mounting plate 2102 and is connected to the screening box 2104 in the middle; the screening box 2104 is a hexagonal structure, but the thickness of its lower bottom surface is relatively thick, and its upper top surface is open. The purpose of setting the hexagon here is to prevent the steel bars from falling out during rotary screening, and to be able to move the steel bars to the greatest extent, so that the compliant steel bars fall into the screening holes faster.

[0060] In addition to the larger storage space at the top, the bottom surface of the screening box 2104 also features two layers of smaller storage spaces, located above the second screening layer 2105b and the third screening layer 2105c. The larger storage space is located above the first screening layer 2105a, while a rectangular opening is located below the third screening layer 2105c. The first screening layer 2105a is provided with a number of screening holes of a fixed diameter. Only rebar with a corresponding diameter or smaller can fall into the space above the second screening layer 2105b, the next layer below. The diameter of the screening holes in the first screening layer 2105a is the smallest, while the diameters of the screening holes in the second screening layer 2105b and the third screening layer 2105c increase in sequence. The first screening layer 2105a, the second screening layer 2105b, and the third screening layer 2105c are actually a screening plate, and a stepper motor group 2106 is provided on the outside of one end thereof. The stepper motor group 2106 includes a screening rack track 2106b arranged on one side of the screening plate and a screening stepper motor 2106a arranged on the screening box 2104 near it. The screening stepper motor 2106a is engaged with the screening rack track 2106b through a gear. The screening stepper motor 2106a can be controlled to drive the gear on it to rotate on the screening rack track 2106b, thereby controlling the screening plate to be inserted into or withdrawn from the screening box 2104.

[0061] The purpose of setting up this structure is that when diameter screening is required, the steel bars within a certain length that have been initially screened as small diameter or large diameter are placed in the screening box 2104. At this time, the first screening layer 2105a, the second screening layer 2105b, and the third screening layer 2105c are all in a closed state. The layered transfer part 4000 is moved to the bottom of the rectangular opening below the third screening layer 2105c, and preparations are made for receiving the materials. At this time, the second screening layer 2105b and the third screening layer 2105c are opened by the stepper motor group 2106 to control the screening rotation. The motor 2103 is running, and the screening rotary motor 2103 drives the screening box 2104 to rotate and screen. The steel bars with the smallest diameter that meet the diameter of the screening holes on the first screening layer 2105a are screened and fall into the bottom layer of the layered transfer box 4200. After all the screening is completed, the second screening layer 2105b is closed, and the first screening layer 2105a is opened. The remaining steel bars fall into the space above the second screening layer 2105b, and the screening rotary motor 2103 is started again for secondary screening. The steel bars with the smallest diameter that meet the diameter of the screening holes on the second screening layer 2105b are screened and fall into the bottom layer of the layered transfer box 4200. The second smallest diameter steel bars are screened and fall into the second layer of the layered transfer box 4200. After all the screening is completed, the third screening layer 2105c is closed and the second screening layer 2105b is opened. The screening rotating motor 2103 is turned on for three screenings. Similarly, those that meet the diameter requirements fall into the top layer of the layered transfer box 4200. At this time, there are still some steel bars that do not meet the diameter requirements and are stored in the third screening layer 2105c. The non-compliant steel bars here, such as steel bars with larger diameters, can be transported to the length classification part by the layered transfer part 4000. After screening in 3000, it returns to the bottom of the third screening layer 2105c, opens the third screening layer 2105c, and all the remaining steel bars fall into the top layer of the layered transfer box 4200, and move to the vicinity of the length classification part 3000 through the transfer box, and open the three-layer screening plate of its length screening box, so that the non-compliant steel bars pass directly through the length screening box and fall into the layered transfer box 4200 on the second track 1003 below it, and then the transfer box sends the steel bars to the designated waste classification storage box 5005 at the storage interface 1003a for storage.

[0062] The length classification part 3000 of the present invention includes a small-diameter length screening box 3100 and a large-diameter length screening box 3200. The general structure of the length screening box is the same as that of the small-diameter screening box 2100, except that the first screening layer 2105a, the second screening layer 2105b, and the third screening layer 2105c are changed into three layers of different length screening layers 3101, on which a plurality of length screening holes 3101a are provided. The lengths of the length screening holes 3101a on the three-layer length screening layer 3101 increase from top to bottom, and the diameter is larger than the maximum diameter in the diameter screening box; the purpose of setting up this structure is that when the layered transfer part 4000 on the first track 1002 moves to the vicinity of the length classification part 3000, the layered transfer box 4200 is lifted to an appropriate height by the electric push rod group 1004 near it, and the top side baffle is opened to make the steel bars therein slide and fall into the small-diameter length screening box 3100 or the large-diameter length screening box In the sub-box 3200, length screening can be carried out at this time. The same as the diameter screening method mentioned above, the three-layer screening plate is opened and closed in turn to screen the steel bars of different lengths, and they are stored in the three-layer storage space of the layered transfer part 4000 on the second track 1003 in turn. The layered transfer part sends the steel bars of the same diameter but different lengths into the waste classification storage box 5005 for storage, and then the second-layer layered baffle of the layered transfer box 4200 on the first track 1002 is opened to perform length screening of the steel bars of the next diameter. Similarly, after the screening is completed, the transfer and storage are carried out, and then the length screening of the steel bars of the bottom diameter is carried out. After completion, the transfer and storage are carried out. A total of three screenings are performed. Therefore, in fact, the waste classification storage box 5005 on the small diameter screening production line can be divided into nine types of steel bars of different diameters and lengths. There is also an extended storage box for steel bars of non-compliant diameters. The same is true for the large diameter screening production line.

[0063] Compared with the existing technology, the small-diameter screening box 2100 and the large-diameter screening box 2200 designed in the present invention can screen the scrap short steel bars in multiple layers and multiple times, and store them in categories. In conjunction with the layered transfer part 4000, short steel bars of different diameters can be separated and stored, and then further length screening is carried out through the small-diameter length screening box 3100 and the large-diameter length screening box 3200. Each screening line can eventually obtain nine types of steel bars with different diameters and lengths, plus one type of non-compliant scrap steel bars stored separately. The two screening lines can obtain a total of twenty boxes of different types of scrap steel bars. The extremely detailed classification of scrap steel bars greatly improves the efficiency of subsequent steel bar recycling production and processing and the quality of finished products, and effectively improves the recycling efficiency and the utilization rate of scrap steel bars. The number of sieve plate layers of the screening box can also be changed according to actual needs to cope with more types of length and diameter segmentation requirements.

[0064] Depend on Figure 8-11As shown, the layered transfer part 4000 includes a transfer chassis 4100 and a layered transfer box 4200; the transfer chassis 4100 is installed on the first track 1002 and the second track 1003 through an electric trolley, and the transfer chassis 4100 includes a transfer box support base 4101, and the transfer box support base 4101 is provided with an inward-facing transfer box fixed electric clamp 4102 on all four sides. The transfer box fixed electric clamp 4102 can be used to clamp the fixed clamping seat 4201a at the bottom of the layered transfer box 4200. The layered transfer box 4200 is mainly composed of a transfer box body 4201, and four fixed clamping seats 4201a are provided in the middle of the bottom surface of the transfer box body 4201, and the positions correspond to the fixed electric clamping claws 4102 of the transfer box. At the same time, four electric push rod group lifting seats 4201b are provided on the periphery of the bottom surface of the transfer box body 4201, and the positions of the electric push rod group lifting seats 4201b correspond to the electric push rod group 1004. When the layered transfer part 4000 moves to the top of the electric push rod group 1004, the electric push rod group 1004 can be lifted to insert its push rod into the electric push rod group lifting seat 4201b, thereby lifting the entire layered transfer box. The transport box 4200 is lifted; the top of the layered transfer box 4200 is set as an opening, and the interior is divided into three layers by the sloped plug plate 4203a, and the transfer box body 4201 is provided with three corresponding openings on the side close to the bottom of the slope of the sloped plug plate 4203a, and a layered baffle 4202a is provided on the outside of each opening, and a rack track is provided on one side of the layered baffle 4202a. A baffle stepper motor 4202b is provided on the outer surface of the transfer box body 4201 near the rack track, and the output shaft of the baffle stepper motor 4202b is connected to a gear, which is engaged with the rack track to control the layered baffle 4202a to rise and fall and open and close. An inward rack track is provided on one side of the sloped plug plate 4203a, and a plug plate stepper motor 4203b is provided on the outer surface of the transfer box 4201 near the rack track. A gear is provided on the output shaft of the plug plate stepper motor 4203b, and the gear is engaged with the rack track on the sloped plug plate 4203a. The gear can be controlled to rotate on the rack track to control the sloped plug plate 4203a to move left and right in the box, thereby realizing the opening and closing of the three-layer storage space in the box.

[0065] The purpose of setting up this structure is that when the layered transfer part 4000 moves to the bottom of the diameter screening box or the length screening box for transfer and storage, the screening box will screen out the first batch of classified steel bars, and open the sloped inserts 4203a on the top and second layers controlled by the insert stepper motor 4203b, so that the steel bars can fall directly into the space above the sloped inserts 4203a on the bottom layer. After one screening is completed, the sloped inserts on the second layer are closed to receive the steel bars screened for the second time. After completion, the sloped inserts on the top layer are closed and the steel bars screened for the third time are received. At this point, one steel bar screening and storage is completed, and the non-compliant steel bars on the last layer in the screening box can be removed in this screening. After all the qualified steel bars have been transferred, the layered transfer part 4000 returns to the bottom of the screening box to receive the batch of steel bars and transfer them separately; when the steel bars that have completed diameter classification need to be transported to the length classification part 3000 for length screening, the layered transfer part 4000 filled with the steel bars that have completed diameter screening is controlled to move to the vicinity of the length classification part 3000, so that the electric push rod group 1004 near it is aligned with the electric push rod group lifting seat 4201b at the bottom of the layered transfer box 4200, the electric clamp 4102 for fixing the transfer box is released, and the electric push rod group 1004 is started so that its push rod is inserted into the electric push rod group lifting seat 4201b , so that the layered transfer box 4200 is lifted up and separated from the transfer chassis 4100. After it is lifted to a suitable height, the steel bars can be unloaded. The layered baffle 4202a can be controlled to open by the baffle stepper motor 4202b three times as needed, so that the steel bars stored in the box can slide into the small diameter length screening box 3100 or the large diameter length screening box 3200 through the sloped insert 4203a, and then be screened. It should be noted here that after adding a layer of steel bars, it is necessary to wait for the length screening box to screen the steel bars of the same diameter into three lengths and store them all in the layered transfer part 4000 in the second track 1003 before unloading. A layer of steel bars is added; when the layered transfer part 4000 that is full of steel bars that have completed length screening needs to be stored in a classified manner, it is controlled to come to the storage interface 1003a near the corresponding waste classification storage box 5005, and the electric push rod group 1004 near it is controlled to push the layered transfer box 4200 to a suitable height, and the layered baffle 4202a of the corresponding layer is opened to allow the layer of steel bars to fall into the waste classification storage box 5005, and then the electric push rod group 1004 is lowered and the next layer of steel bars is stored. After all storage is completed, the layered transfer part 4000 moves back to the bottom of the corresponding length screening box to prepare for the next screening and storage.

[0066] Compared with the prior art, the layered transfer part 4000 involved in the present invention is composed of a transfer chassis 4100 and a layered transfer box 4200 that can be separated from each other. The transfer box fixed electric clamp 4102 on the transfer chassis 4100 can clamp and release the layered transfer box 4200 in time, so that the electric push rod group lifting seat 4201b at the bottom of the layered transfer box 4200 can cooperate with the electric push rod group 1004 in time to lift the entire transfer box 4201 for unloading, and the three-layered baffle 4202a and sloped plug plate 4203a in the box cooperate with the baffle stepper motor 4202b and the plug plate stepper motor 4203b to realize three-layer space classification storage in the box, effectively cope with the transfer of 3x3 groups of classified steel bars layered by diameter screening and length screening, greatly improve the transfer and screening efficiency, and at the same time cooperate with multiple groups of waste classification storage boxes 5005 to realize efficient classification storage of scrap steel bars.

[0067] Depend on Figure 12 As shown, the recycling processing section 5000 comprises several pillars 5001 mounted on the ground 1001. A top plate 5002 is mounted on each pillar 5001. The bottom surface of the top plate 5002 is provided with a corresponding track 5003, which is supported by several electric gripper assemblies 5004. The electric gripper assemblies 5004 consist of an electric trolley, an electric push rod, and an electric gripper, from top to bottom. The ground 1001 below the top plate 5002 is divided into three areas: an upper horizontal area, a middle vertical area, and a lower horizontal area. The upper horizontal area houses several waste sorting storage bins 5005, corresponding to the storage ports 1003a of the two screening production lines. The middle vertical area houses a rebar bending machine 5007 and a rebar welding machine 5008. The lower horizontal area houses several recycle sorting storage bins 5006 for storing recycled rebar. The I-shaped track 5003 completely covers all the mechanisms in the upper horizontal, middle vertical and lower horizontal areas, so that the electric gripper group 5004 can be flexibly moved between the areas.

[0068] The purpose of setting up this structure is that after the screening and storage process is completed, the steel bars need to be recycled. The electric clamp group 5004 can be moved on the I-type track 5003 to the top of the corresponding waste classification storage box 5005, and the electric clamp is lowered by the electric push rod on it. The scrap steel bars are clamped by the electric clamp, and the electric push rod is retracted and moved to the vicinity of the steel bar bending machine 5007 and the steel bar welding machine 5008 by the electric trolley. Bending or welding processes are performed with manual assistance as needed to form longer steel bars or other types of steel bars that can be used directly. After completion, the electric clamp group 5004 clamps the processed steel bars and moves them to the recycled classification storage box 5006. The electric clamp is released to make it fall into the box for storage. At this point, the entire scrap steel bar recycling and reuse process is completed.

[0069] Compared with the prior art, the work-type area set in the regeneration processing part 5000 of the present invention effectively divides the waste storage area, regeneration processing area, and finished product storage area into the upper horizontal, middle vertical, and lower horizontal areas of the work-type, so that the work-type track 5003 can cover them all, and then the electric clamping claw group 5004 can quickly clamp the steel bars in the waste classification storage box 5005 to the vicinity of the steel bar bending machine 5007 and the steel bar welding machine 5008 for regeneration processing. After completion, they can be quickly put back into the regeneration classification storage box 5006 for retrieval, and the production is circulated, which greatly improves work efficiency.

[0070] Accordingly, the intelligent waste steel bar recycling and reuse production method of the present invention comprises the following steps:

[0071] S1. Diameter screening: When diameter screening is required, the steel bars of a certain length that have been initially screened as small diameter or large diameter are placed in the screening box 2104. At this time, the first screening layer 2105a, the second screening layer 2105b, and the third screening layer 2105c are all in closed state. The layered transfer part 4000 is moved to the bottom of the rectangular opening below the third screening layer 2105c, and preparations are made for receiving the materials. At this time, the screening box is about to screen out the first batch of classified steel bars, and the top and second layer sloped inserts 4203a are opened by the insert stepper motor 4203b to allow the steel bars to fall directly into the space above the sloped inserts 4203a of the bottom layer. In the meantime, the second screening layer 2105b and the third screening layer 2105c are opened at the same time through the stepper motor group 2106, and the screening rotating motor 2103 is controlled to run. The screening rotating motor 2103 drives the screening box 2104 to rotate and screen, and the steel bars with the smallest diameter that meet the diameter of the screening holes on the first screening layer 2105a are screened and fall into the bottom layer of the layered transfer box 4200. After all the screening is completed, the second screening layer 2105b is closed, and the first screening layer 2105a is opened. The remaining steel bars fall into the space above the second screening layer 2105b, and the sloped plug 4203a of the second layer is closed at the same time, ready to receive the steel bars for the second screening, and continue to start The dynamic screening rotary motor 2103 performs secondary screening, and the steel bars with the second smallest diameter that meets the diameter of the screening holes on the second screening layer 2105b are screened and fall into the second layer of the layered transfer box 4200. After all the screening is completed, the third screening layer 2105c is closed and the second screening layer 2105b is opened. The sloped plug 4203a on the top layer is closed and ready to receive the steel bars that have been screened for the third time. The screening rotary motor 2103 is turned on for the third screening. Similarly, those that meet the diameter size fall into the top layer of the layered transfer box 4200. At this time, there are still some steel bars that do not meet the diameter requirements and are stored in the third screening layer 2105c. The non-compliant steel bars here, such as The steel bars with larger diameters can be returned to the bottom of the third screening layer 2105c after being transferred to the length classification part 3000 by the layered transfer part 4000 for screening. The third screening layer 2105c is opened, and the remaining steel bars all fall into the top layer of the layered transfer box 4200. The layered transfer box is moved to the vicinity of the length classification part 3000 through the layered transfer box, and the three-layer screening plate of its length screening box is opened, so that the non-compliant steel bars pass directly through the length screening box and fall into the layered transfer box 4200 on the second track 1003 below it. The transfer box then sends the steel bars to the designated waste classification storage box 5005 at the storage interface 1003a for storage.

[0072] S2. One-time transfer: When the steel bars that have been sorted by diameter need to be transported to the length sorting section 3000 for length screening, the layered transfer section 4000 filled with the steel bars that have been sorted by diameter is controlled to move to the vicinity of the length sorting section 3000, and the electric push rod group 1004 near it is aligned with the electric push rod group lifting seat 4201b at the bottom of the layered transfer box 4200, the electric clamping claw 4102 for fixing the transfer box is released, and the electric push rod group 1004 is started to insert its push rod into the electric push rod group lifting seat 4201b, so that the layered transfer box 4200 is lifted and separated from the transfer chassis 410. 0, after it is raised to a suitable height, steel bars can be unloaded. The layered baffle 4202a can be opened three times by the baffle stepper motor 4202b as needed, so that the steel bars stored in the box can slide into the small diameter length screening box 3100 or the large diameter length screening box 3200 through the sloped insert 4203a, and then be screened. It should be noted here that after adding a layer of steel bars, it is necessary to wait for the length screening box to screen the steel bars of the same diameter into three lengths and store them all in the layered transfer part 4000 in the second track 1003 before adding the next layer of steel bars;

[0073] S3. Length screening: When the steel bars slide and fall into the small diameter length screening box 3100 or the large diameter length screening box 3200, length screening can be performed at this time. The same as the diameter screening method mentioned above, the three-layer screening plate is opened and closed in turn to screen the steel bars of different lengths, and the steel bars are stored in turn in the three-layer storage space of the layered transfer part 4000 on the second track 1003. The layered transfer part sends the steel bars of the same diameter but different lengths into the waste classification storage box 5005 for storage, and then the second-layer layered baffle of the layered transfer box 4200 on the first track 1002 is opened to perform length screening of the steel bars of the next diameter. Similarly, after the screening is completed, the steel bars of the bottom diameter are transferred and stored, and the length screening of the steel bars is performed again. After completion, the steel bars are transferred and stored. A total of three screenings are performed. Therefore, in fact, the waste classification storage box 5005 on the small diameter screening production line can be divided into nine types of steel bars of different diameters and lengths. At the same time, there is an extended storage box for steel bars of non-compliant diameters. The same is true for the large diameter screening production line.

[0074] S4, secondary transfer: When the layered transfer part 4000 is full of steel bars that have completed length screening and needs to be stored for classified steel bars, it is controlled to come to the storage interface 1003a near the corresponding waste classification storage box 5005, and the electric push rod group 1004 near it is controlled to push the layered transfer box 4200 to a suitable height, open the layered baffle 4202a of the corresponding layer so that the steel bars of this layer fall into the waste classification storage box 5005, and then lower the electric push rod group 1004 to continue to store the next layer of steel bars. After all storage is completed, the layered transfer part 4000 moves back to the bottom of the corresponding length screening box to prepare for the next screening and storage;

[0075] S5. Regeneration processing: After the screening and storage process is completed, the steel bar needs to be recycled. The electric clamp group 5004 can be moved on the I-type track 5003 to the top of the corresponding waste classification storage box 5005, and the electric push rod on it is used to lower the electric clamp. The scrap steel bar is clamped by the electric clamp, and the electric push rod is retracted and moved to the vicinity of the steel bar bending machine 5007 and the steel bar welding machine 5008 by the electric trolley. Bending or welding processes are performed with manual assistance as needed to form longer steel bars or other types of steel bars that can be used directly. After completion, the electric clamp group 5004 clamps the processed steel bars and moves them to the recycled classification storage box 5006. The electric clamp is released to make it fall into the box for storage. At this point, the entire scrap steel bar recycling and reuse process is completed.

[0076] The intelligent scrap steel bar recycling and reuse production method of the present invention can be directly applied to the existing scrap short steel bar recycling and reuse process. The production line can be arranged at the construction site, and the short steel bars that are not detailed classified and meet the length and diameter range are placed in the corresponding small-diameter screening box 2100 or large-diameter screening box 2200 by means of transportation. With the cooperation of the screening rotating motor 2103, the three-layer screening plate, the stepping motor group 2106, and the layered transfer part 4000, the scrap steel bars are divided into six diameters and placed in the left and right groups of layered transfer boxes 4200, and then transported to the length classification part 3000 for length screening. After screening, they are sent to the first The layered transfer part 4000 on the second track 1003 sends the steel bars that have been sorted by length into the waste sorting storage box 5005 for storage, and then can be moved on the I-type track 5003 through the electric clamping claw group 5004, and the steel bars in the waste sorting storage box 5005 are clamped and moved to the vicinity of the steel bar bending machine 5007 or the steel bar welding machine 5008 in the middle of the I-type top plate 5002. With the assistance of construction personnel, the steel bar regeneration and strengthening process is carried out to produce recycled steel bars that meet the required length and diameter, and then put them into the recycled sorting storage box 5006 for use. This method effectively improves the recycling efficiency of scrap steel bars and saves energy and reduces emissions.

[0077] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be understood by anyone familiar with the technology within the technical scope disclosed by the present invention should be included in the scope of the present invention.

Claims

1. An intelligent scrap steel bar recycling and reuse production line, characterized in that: include: The base portion (1000) includes a ground surface (1001) as a main body, and the upper surface of the ground surface (1001) is provided with two sets of first tracks (1002) and second tracks (1003); The diameter classification part (2000) is installed on the base part (1000), and includes a small diameter screening box (2100) and a large diameter screening box (2200), and is used to complete the screening of steel bars of different diameters; The length classification part (3000) is installed on the base part (1000), and includes a small diameter length screening box (3100) and a large diameter length screening box (3200), and is used to complete the screening of steel bars of different lengths; The layered transfer section (4000) comprises a transfer chassis (4100) and a layered transfer box (4200), wherein the transfer chassis (4100) is mounted on the first track (1002) and the second track (1003) via an electric trolley, and is used to transport the steel bars that have been diameter-classified by the diameter classification section (2000) to the length classification section (3000), and to transport the steel bars that have been length-screened by the length classification section (3000) to the recycling and processing section (5000); The recycling processing part (5000) comprises a plurality of pillars (5001) installed on the ground (1001), wherein an I-shaped top plate (5002) is provided on the pillars (5001), and a corresponding I-shaped track (5003) is provided on the bottom surface of the I-shaped top plate (5002), and a plurality of electric clamping claw groups (5004) are provided on the I-shaped track (5003). A plurality of waste classification storage boxes (5005), a steel bar bending machine (5007) and a steel bar welding machine (5008), and a recycling classification storage box (5006) are provided on the ground (1001) below the I-shaped top plate (5002). The electric clamping claw group (5004) clamps the waste steel bars from the waste classification storage box (5005) and moves them to the steel bar bending machine (5007) and the steel bar welding machine (5008) for bending or welding, and moves the processed steel bars to the recycling classification storage box (5006).

2. The intelligent scrap steel bar recycling and reuse production line according to claim 1 is characterized in that: The end track of the two first tracks (1002) near the middle of the ground (1001) extends to the bottom of the small diameter screening box (2100) and the large diameter screening box (2200) of the diameter classification part (2000), and the end track near the edge of the ground (1001) extends to one side of the small diameter length screening box (3100) and the large diameter length screening box (3200) of the length classification part (3000), and an electric push rod group (1004) is provided around the end; The second track (1003) is an L-shaped track, wherein the vertical track, i.e., the end of the side close to the edge of the ground, extends to the bottom of the length screening box, and the horizontal track, i.e., the side close to the middle of the ground, extends to a plurality of storage interfaces (1003a) to the left of the waste classification storage box (5005), and each storage interface (1003a) is provided with a group of electric push rods (1004) near each storage interface; a layered transfer part (4000) is provided on both the first track (1002) and the second track (1003).

3. The intelligent scrap steel bar recycling and reuse production line according to claim 2 is characterized in that: The main structure of the small-diameter screening box (2100) is the same as that of the large-diameter screening box (2200), except that the diameters of the long strip-shaped screening holes on the first screening layer (2105a), the second screening layer (2105b), and the third screening layer (2105c) are different; the small-diameter screening box (2100) comprises four support rods (2101), and a longitudinal screening rotary motor mounting plate (2102) is connected between the upper parts of the left and right groups of support rods. A screening rotary motor (2103) is connected to the outer side of the middle part of the screening rotary motor mounting plate (2102), and the output shaft of the screening rotary motor (2103) passes through the screening rotary motor mounting plate (2102) and is connected to the screening box body (2104) in the middle.

4. The intelligent scrap steel bar recycling and reuse production line according to claim 3 is characterized in that: The diameter of the screening holes in the first screening layer (2105a) in the small-diameter screening box (2100) is the smallest, and the diameters of the screening holes in the second screening layer (2105b) and the third screening layer (2105c) below it increase in sequence; the first screening layer (2105a), the second screening layer (2105b), and the third screening layer (2105c) are a screening plate, one end of which is provided with a stepper motor group (2106) on the outside, and the stepper motor group (2106) includes A screening rack track (2106b) is arranged on one side of the screening plate and a screening stepper motor (2106a) is arranged on a screening box (2104) near the screening plate. The screening stepper motor (2106a) is engaged with the screening rack track (2106b) through a gear. The screening stepper motor (2106a) can be controlled to drive the gear on it to rotate on the screening rack track (2106b), thereby controlling the screening plate to be inserted into or withdrawn from the screening box (2104).

5. The intelligent scrap steel bar recycling and reuse production line according to claim 4 is characterized in that: The general structure of the small diameter length screening box (3100) and the large diameter length screening box (3200) is the same as that of the small diameter screening box (2100), except that the first screening layer (2105a), the second screening layer (2105b), and the third screening layer (2105c) are changed into three layers of different length screening layers (3101), each of which is provided with a plurality of length screening holes (3101a), and the lengths of the length screening holes (3101a) on the three layers of length screening layers (3101) increase from top to bottom.

6. The intelligent scrap steel bar recycling and reuse production line according to claim 5 is characterized in that: The transfer chassis (4100) includes a transfer box support base (4101), and the transfer box support base (4101) is provided with inward-facing transfer box fixed electric clamps (4102) on all four sides. The transfer box fixed electric clamps (4102) are used to clamp the fixed clamping seat (4201a) at the bottom of the layered transfer box (4200); the layered transfer box (4200) is mainly composed of a transfer box body (4201), and four fixed clamping seats (4201a) are provided in the middle of the bottom surface of the transfer box body (4201), and the positions are the same as those of the transfer box. The transport box is fixed with an electric clamp (4102), and at the same time, four electric push rod group lifting seats (4201b) are provided on the outer periphery of the bottom surface of the transport box body (4201). The position of the electric push rod group lifting seat (4201b) corresponds to the electric push rod group (1004). When the layered transport part (4000) moves to the top of the electric push rod group (1004), the electric push rod group (1004) can be lifted so that its push rod is inserted into the electric push rod group lifting seat (4201b) to lift the entire layered transport box (4200).

7. The intelligent scrap steel bar recycling and reuse production line according to claim 6 is characterized in that: The top of the layered transfer box (4200) is set as an opening, and the interior is divided into three layers by a sloped plug plate (4203a), and the transfer box body (4201) is provided with three corresponding openings on the side close to the bottom of the sloped plug plate (4203a), and a layered baffle (4202a) is provided on the outside of each opening. A rack track is provided on one side of the layered baffle (4202a), and a baffle stepper motor (4202b) is provided on the outer surface of the transfer box body (4201) near the rack track. The output shaft of the baffle stepper motor (4202b) is connected to a gear, and the gear and the rack track are connected. The engagement thereby controls the layered baffle (4202a) to rise and fall, open and close; an inward rack track is provided on one side of the sloped plug plate (4203a), and a plug plate stepper motor (4203b) is provided on the outer surface of the transfer box (4201) near the rack track, and a gear is provided on the output shaft of the plug plate stepper motor (4203b), which is engaged with the rack track on the sloped plug plate (4203a). By controlling the gear to rotate on the rack track, the sloped plug plate (4203a) can be controlled to move left and right in the box, thereby realizing the opening and closing of the three-layer storage space in the box.

8. An intelligent waste steel bar recycling and reuse production method using the production line according to claim 7, characterized in that: The steps are: S1. Diameter screening: When diameter screening is required, the steel bars of a certain length that are initially screened as small diameter or large diameter are placed in the screening box (2104). At this time, the first screening layer (2105a), the second screening layer (2105b), and the third screening layer (2105c) are all in a closed state. The layered transfer part (4000) is moved to the bottom of the rectangular opening below the third screening layer (2105c), and the material connection is prepared. At this time, the screening box is about to screen the first batch of classified steel bars, and the top and second layer sloped inserts (4203a) are opened by the insert stepper motor (4203b), so that the steel bars fall directly into the bottom layer sloped insert (4203a) above. In the space, the second screening layer (2105b) and the third screening layer (2105c) are opened at the same time by the stepper motor group (2106), and the operation of the screening rotary motor (2103) is controlled. The screening rotary motor (2103) drives the screening box (2104) to rotate and screen. The steel bars with the smallest diameter that meet the diameter of the screening holes on the first screening layer (2105a) are screened and fall into the bottom layer of the layered transfer box (4200). After all the screening is completed, the second screening layer (2105b) is closed, the first screening layer (2105a) is opened, and the remaining steel bars fall into the space above the second screening layer (2105b). At the same time, the sloped plug plate (4203a) of the second layer is closed to prepare for receiving For the steel bars that have been screened twice, the screening rotary motor (2103) is started to perform secondary screening. The steel bars with the second smallest diameter that meets the diameter of the screening hole on the second screening layer (2105b) are screened and fall into the second layer of the layered transfer box (4200). After all the screening is completed, the third screening layer (2105c) is closed and the second screening layer (2105b) is opened. The sloped plug plate (4203a) on the top layer is closed and ready to receive the steel bars that have been screened three times. The screening rotary motor (2103) is started to perform three screenings. Similarly, the steel bars that meet the diameter requirements fall into the top layer of the layered transfer box (4200). At this time, there are still some steel bars that do not meet the diameter requirements and are stored in the third screening layer (2105 c) In the waiting layered transfer section (4000), the steel bars are transferred to the length classification section (3000) for screening and then returned to the bottom of the third screening layer (2105c). The third screening layer (2105c) is opened, and all the remaining steel bars fall into the top layer of the layered transfer box (4200). The layered transfer box is moved to the vicinity of the length classification section (3000), and the three-layer screening plate of the length screening box is opened, so that the non-compliant steel bars pass directly through the length screening box and fall into the layered transfer box (4200) on the second track (1003) below it. The transfer box then sends the steel bars to the designated waste classification storage box (5005) at the storage interface (1003a) for storage; S2. One-time transfer: When the steel bars that have been diameter-classified need to be transported to the length-classification section (3000) for length screening, the layered transfer section (4000) filled with the steel bars that have been diameter-classified is controlled to move to the vicinity of the length-classification section (3000), so that the electric push rod group (1004) near it is aligned with the electric push rod group lifting seat (4201b) at the bottom of the layered transfer box (4200), the electric clamp (4102) fixing the transfer box is released, the electric push rod group (1004) is started, and its push rod is inserted into the electric push rod group lifting seat (4201b), so that the layered transfer box (4200) is lifted up and separated from the transfer box. The transport chassis (4100) can be unloaded after being raised to a suitable height. The layered baffle (4202a) can be opened three times according to needs through the baffle stepper motor (4202b), so that the steel bars stored in the box can slide into the small diameter length screening box (3100) or the large diameter length screening box (3200) through the sloped insert (4203a) and then be screened. After adding a layer of steel bars, it is necessary to wait for the length screening box to screen the steel bars of the same diameter into three lengths and store them all in the layered transfer part (4000) in the second track (1003) before adding the next layer of steel bars; S3. Length screening: When the steel bars fall into the small diameter length screening box (3100) or the large diameter length screening box (3200), length screening can be performed. The same as the diameter screening method is used. The three-layer screening plate is opened and closed in sequence to screen the steel bars of different lengths. The steel bars are stored in the three-layer storage space of the layered transfer part (4000) on the second track (1003). The layered transfer part sends the steel bars of the same diameter but different lengths to the waste classification storage box (5005) for storage. Then open the second layer baffle of the layered transfer box (4200) on the first track (1002) to screen the length of the steel bars of the next diameter. Similarly, after the screening is completed, transfer and storage are carried out. Then, the length of the steel bars of the bottom diameter is screened. After completion, transfer and storage are carried out. A total of three screenings are carried out. Therefore, in fact, the waste classification storage box (5005) on the small diameter screening production line can be divided into nine types of steel bars of different diameters and lengths. At the same time, there is an extended storage box for steel bars of non-compliant diameters. The same is true for the large diameter screening production line. S4, secondary transfer: When the layered transfer part (4000) is filled with steel bars that have completed length screening and needs to be stored for classified steel bars, it is controlled to come to the vicinity of the storage interface (1003a) near the corresponding waste classification storage box (5005), and the electric push rod group (1004) near it is controlled to push the layered transfer box (4200) to a suitable height, open the layered baffle (4202a) of the corresponding layer so that the steel bars of this layer fall into the waste classification storage box (5005), and then lower the electric push rod group (1004) and continue to store the next layer of steel bars. After all storage is completed, the layered transfer part (4000) moves back to the bottom of the corresponding length screening box to prepare for the next screening and storage; S5. Regeneration processing: After the screening and storage process is completed, the steel bars need to be recycled. The electric clamping jaw group (5004) can be moved on the I-type track (5003) to the top of the corresponding waste classification storage box (5005), and the electric push rod on it is used to lower the electric clamping jaw. The scrap steel bars are clamped by the electric clamping jaw, and the electric push rod is retracted and moved to the vicinity of the steel bar bending machine (5007) and the steel bar welding machine (5008) by the electric trolley. The bending or welding process is performed with manual assistance as needed to form longer steel bars or other types of steel bars that can be used directly. After completion, the electric clamping jaw group (5004) clamps the processed steel bars and moves them to the recycled classification storage box (5006). The electric clamping jaw is released to make it fall into the box for storage. At this point, the entire waste steel bar recycling and reuse process is completed.

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