Building waste steel bar sorting system

Abstract

The invention relates to a building waste steel bar sorting system, which belongs to the technical field of steel bar sorting, and comprises a feeding device, a waste steel bar diameter identification device, a waste steel bar length identification and separate warehouse storage device, a steel bar packing device and a steel bar transfer device, the feeding device is formed by bending a thin-wall steel plate, and the inner wall of the feeding device is smooth. According to the sorting system for the building waste reinforcing steel bars, the building waste reinforcing steel bars are automatically divided into four types according to the length, wherein the length of the building waste reinforcing steel bars is smaller than or equal to 200 mm, 200-400 mm, 400-600 mm and 600-1000 mm; the construction waste reinforcing steel bars are classified into four types of reinforcing steel bars smaller than or equal to 12 mm, 14-18 mm, 20-25 mm and larger than 25 mm according to the diameter to be automatically sorted and collected, the problems that existing construction waste reinforcing steel bars are placed disorderly, the utilization rate is low, waste is serious, and the reinforcing steel bar raw material cost is high are solved, the utilization rate of the waste reinforcing steel bars is greatly increased, and the tidiness of a field reinforcing steel bar discharging working face is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel bar sorting, and in particular to a construction waste steel bar sorting system. Background Art

[0002] Construction waste steel bars refer to the general term for excess steel bars generated during the construction, laying, demolition and repair of various buildings, structures, pipelines, roads, etc. by construction units or individuals. Here it mainly refers to the excess steel bars with a size of L≤1000mm generated during the cutting process of construction.

[0003] During construction, a large number of raw steel bars of different lengths will be left over during the cutting process of steel bar raw materials. The industry calls them scrap steel bars. The specifications and models of these steel bars are different, and the large quantity makes them inconvenient to transport and collect. The steel bar scraps at the processing site are discarded at will, or piled up randomly, affecting construction, or directly poured into concrete, or backfilled with earthwork, or all loaded and sold as scrap iron. When the construction site is in urgent need of some specifications and models of short-head steel bars, the cutting personnel often directly cut them from the whole intact profile steel bar, resulting in unnecessary waste of raw steel bars, reducing the recycling rate of steel bars, and making the cost of steel bars high. Therefore, it is urgent to provide a system device for sorting, recycling and reusing steel bar scraps to solve the problem of reasonable reuse of scrap steel bars and reduce construction costs. It is very necessary. Therefore, a construction waste steel bar sorting system is proposed to solve the above problems. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a construction waste steel bar sorting system, which has the advantages of greatly improving the utilization rate of waste steel bars and improving the cleanliness of the on-site steel bar cutting operation surface. It solves the problems of existing construction waste steel bars being placed in a messy manner, with low actual utilization rate, serious waste, and high cost of steel bar raw materials.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a construction waste steel bar sorting system, comprising: a feeding device, a waste steel bar diameter identification device, a waste steel bar length identification and storage device, a steel bar packaging device and a steel bar transfer device;

[0006] The feeding device is formed by bending a thin-walled steel plate with a smooth inner wall. The feeding device is inclined at an angle of 100°. The scrap steel bars fed into the feeding device can slide to the bottom of the feeding device by their own weight and directly enter the scrap steel bar diameter identification device.

[0007] The scrap steel bar diameter identification device consists of a protective shell, a feed port, a driving roller, a conveyor belt, a material stop strip, a clamp, a magnet, a driving motor and a baffle, wherein the number of driving rollers is two, and they are rotatably installed in the protective shell, the conveyor belt is sleeved on the driving roller, the clamp and the material stop strip are both installed on the conveyor belt, and the clamp is located on one side of the material stop strip, the driving motor is fixedly installed on one side of the protective shell, and is fixedly connected to one end of one of the driving rollers, the feed port is opened on the upper surface of the protective shell, the magnet is embedded in the inner side of the clamp, the material stop strip is provided with an arc groove adapted to the clamp, and a discharge port is opened at the bottom of the protective shell, and the baffle is fixedly connected to the inner bottom wall of the protective shell and is located on one side of the discharge port;

[0008] The driving rollers on both sides drive the conveyor belt and the material blocking strips and clamps on the conveyor belt to rotate from front to back in opposite directions, positioning the scrap steel bars with accurately identified diameters at their proper positions. After being blocked by the baffles, the scrap steel bars to be positioned can fall along the protective shell to the steel bar length identification and compartment storage device;

[0009] The steel bar length identification and compartment storage device includes a mounting plate, an electric telescopic rod, a support block, a photoelectric sensor, a sliding bar, a linear module, and a storage box, wherein the number of the mounting plates is two and symmetrically fixedly connected to the bottom of the protective shell, the number of the electric telescopic rod is two groups and symmetrically fixed to the two mounting plates, the number of the support blocks is two groups and respectively fixed to the output ends of the two groups of electric telescopic rods, the sliding bar is fixed between the two groups of support blocks, the photoelectric sensor is installed on the support block, the storage box is installed between the two mounting plates, and the linear module is installed below the storage box;

[0010] The two sliding blocks are fixedly connected to each other on one side thereof which is opposite to the other.

[0011] That is, the storage steel bar diameter identification device detects the scrap steel bar when the scrap steel bar head enters the steel bar length identification and storage area, and starts to work after sensing the scrap steel bar. It moves with the scrap steel bar at the same speed until it exceeds the scrap steel bar length. The scrap steel bar automatically falls into the storage box below, and the steel bar is identified, classified and stored in four gears.

[0012] The steel bar packing device is used to bundle the steel bars of the same storage box with the same diameter and length for subsequent transportation;

[0013] The steel bar transfer device transfers the packaged waste steel bars from the same storage bin to the steel bar processing shed for secondary waste utilization.

[0014] Furthermore, the feeding device is one of an inclined funnel-type feeding device and an inclined box-type feeding device, wherein the inclined funnel-type feeding device is a funnel-shaped device with a large upper opening and a small lower opening, a smooth curved wall, and an inclined angle; and the inclined box-type feeding device is an inclined smooth box-shaped surface, and the lower part of the sliding surface adopts a curved surface transition. The bottom end of the feeding device is welded and sealed to the feed port of the scrap steel bar diameter identification device to ensure that the scrap steel bars can slide straight into the bottom of the feeding device by their own gravity when the material is manually fed in any way.

[0015] Furthermore, the number of the clamps is sixteen, and the sixteen clamps are symmetrically distributed on the conveyor belt in groups of four. Each group of the clamps is divided into four models, namely ≤12mm, 14mm~18mm, 20mm~25mm, and >25mm, and the four models of clamps are equidistantly distributed on the conveyor belt.

[0016] Furthermore, the steel bar length identification and compartment storage device identifies and stores the scrap steel bars after diameter identification according to their length. The length identification is divided into four levels: the first level ≤ 200mm, the second level 200mm~400mm, the third level 400mm~600mm, and the fourth level 600mm~1000mm. When a certain type of scrap steel bar begins to enter the first level, the first-level sliding block begins to slide synchronously at the same speed, gradually increasing the distance from the first sliding block until it reaches 200mm. If the scrap steel bar is ≤ 200mm, the scrap steel bar falls into the corresponding storage box at the bottom.

[0017] If the scrap steel bar is larger than 200mm, the sliding bar and the scrap steel bar will enter the second gear together. When a certain type of scrap steel bar enters the second gear as a whole, the distance between the sliding bars is 200mm. The sliding bar on one side will slide backward 200mm away from the sliding bar on the other side until it reaches 400mm. If the scrap steel bar is larger than 200mm and ≤400mm, the scrap steel bar will fall into the corresponding storage box at the bottom.

[0018] If the scrap steel bar is larger than 400mm, the sliding bar and the scrap steel bar will enter the third gear together. When a certain type of scrap steel bar enters the third gear as a whole, the sliding bar will be 400mm away from the other side of the sliding bar. The sliding bar on one side will slide backwards to 600mm away from the other side of the sliding bar. If the scrap steel bar is larger than 400mm and ≤600mm, the scrap steel bar will fall into the corresponding storage box at the bottom.

[0019] If the scrap steel bars are larger than 600mm, the sliding bar will enter the fourth gear together with the scrap steel bars. When a certain type of scrap steel bars enters the fourth gear as a whole, the sliding bar is 600mm away from the other side of the sliding bar. The sliding bar on one side slides backward to 1000mm away from the other side of the sliding bar at 600mm, and the scrap steel bars fall into the corresponding storage box at the bottom.

[0020] Furthermore, the total number of storage boxes in the steel bar length identification and compartment storage device is sixteen. The sixteen storage boxes are arranged in four vertical and four horizontal steps and are divided into two layers along the height direction. The width of each vertical column of storage boxes gradually increases from one side to the other.

[0021] Furthermore, the linear module under the storage box consists of an electric slide rail and an electric slider. The electric slide rail is installed on the steel bar transfer device and passes through the steel bar packaging device, and the electric slider is slidably installed on the electric slide rail. An electric slider is correspondingly installed under each storage box, so that each storage box can slide horizontally on the electric slide rail on the same side.

[0022] Furthermore, a pressure sensor is fixedly installed on the inner side of each storage box, and a pressure plate located above the pressure sensor is slidably connected to the inner side of each storage box for sensing the number of steel bars received in each storage box.

[0023] Furthermore, the steel bar packaging device is to bundle the classified and stored waste steel bars into bundles in the storage box.

[0024] Furthermore, the steel bar transfer device will transport the classified and stored scrap steel bars to the steel bar processing shed for secondary use, and the scrap bars cannot be effectively used and sold as scrap.

[0025] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0026] The construction waste steel bar sorting system automatically divides construction waste steel bars into four categories according to length: ≤200mm, 200mm~400mm, 400mm~600mm, 600mm~1000mm; and divides them into four categories according to diameter: ≤12mm, 14mm~18mm, 20mm~25mm, and >25mm for automatic sorting, collection and processing. It solves the problems of existing construction waste steel bars being placed in a messy manner, with low utilization rate, serious waste, and high cost of steel bar raw materials. It greatly improves the utilization rate of waste steel bars and improves the cleanliness of the on-site steel bar cutting operation surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an overall schematic diagram of the sorting system of the present invention;

[0028] Figure 2 Schematic diagram of the steel bar diameter identification device of the present invention;

[0029] Figure 3 This is a bottom sectional view of the steel bar diameter identification device of the present invention;

[0030] Figure 4 This is a schematic diagram of the connection between the inclined box-type feeding device and the protective shell of the present invention;

[0031] Figure 5 Schematic diagram of the steel bar length identification and compartment storage device of the present invention;

[0032] Figure 6 This is a three-dimensional cross-sectional view of the storage box of the present invention.

[0033] In the figure: 1. Feeding device; 1a. Inclined funnel-type feeding device; 1b. Inclined box-type feeding device; 2. Steel bar diameter identification device; 21. Protective shell; 22. Feed port; 23. Drive roller; 24. Conveyor belt; 25. Material stop bar; 26. Clamp; 27. Magnet; 28. Drive motor; 29. Discharge port; 210. Baffle; 3. Steel bar length identification and compartment storage device; 31. Mounting plate; 32. Electric telescopic rod; 33. Support block; 34. Photoelectric sensor; 35. Sliding bar block; 36. Linear module; 37. Storage box; 38. Press plate; 39. Pressure sensor; 310. Stabilizing rod; 4. Steel bar packaging device; 5. Steel bar transfer device. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] See also Figure 1 In this embodiment, a construction waste steel bar sorting system includes: a feeding device 1, a waste steel bar diameter identification device 2, a waste steel bar length identification and sub-compartment storage device 3, a steel bar packing device 4, and a steel bar transfer device 5. The number of the steel bar packing device 4 and the steel bar transfer device 5 is one set, and one set of steel bar packing device 4 and steel bar transfer device 5 is symmetrically distributed on both sides below the waste steel bar length identification and sub-compartment storage device 3;

[0036] The steel bar packing device 4 is to bundle the steel bars of the same storage box that are classified by diameter and length for subsequent transportation. The packaging method of the steel bar packing device 4 is to bundle the classified waste steel bars in the storage box;

[0037] The steel bar packing device 4 comprises an alignment device: ensuring that the steel bars are neatly arranged through a guide plate or a sensor;

[0038] Compression device: Hydraulic / pneumatic pressing arm: compresses loose steel bars into fixed shapes such as square bundles or round bundles;

[0039] Bundling mechanism: Wire reel: stores high-strength steel wire for bundling; wire guide: guides the steel wire to the bundling position; twister: winds and tightens the steel wire to form a firm knot; to achieve automatic bundling of collected steel bars;

[0040] The steel bar transfer device 5 is to transport the packaged scrap steel bars from the same storage bin to the steel bar processing shed for secondary waste utilization. The steel bar transfer device 5 is to transport the classified and stored scrap steel bars to the steel bar processing shed for secondary utilization, and the scrap materials cannot be effectively used and sold as scrap;

[0041] The steel bar transfer device 5 performs the grabbing and handling actions through a mechanical arm, which may adopt a hydraulic arm, a servo mechanical arm or a truss structure to grab the packaged steel bars and place them on a conventional belt conveyor for transportation;

[0042] The equipment involved in the steel bar packaging device 4 and the steel bar transfer device 5 are all existing well-known equipment, and their operation methods are all existing well-known technical means, so they are not described in detail in this article.

[0043] In this embodiment, construction waste steel bars are automatically divided into four categories according to length: ≤200mm, 200mm~400mm, 400mm~600mm, 600mm~1000mm; and divided into four categories according to diameter: ≤12mm, 14mm~18mm, 20mm~25mm, and >25mm for automatic sorting, collection and processing, so as to solve the problems of existing construction waste steel bars being placed in a messy manner, having a low utilization rate, serious waste, and high cost of steel bar raw materials, thereby greatly improving the utilization rate of waste steel bars and improving the cleanliness of the on-site steel bar cutting operation surface.

[0044] It should be noted that the steel bar diameter identification device 2 is vertically installed above the steel bar length identification and compartment storage device 3.

[0045] See also Figure 1 and 4 In this embodiment, the feeding device 1 is formed by bending a thin-walled steel plate, and the inner wall is smooth, wherein the feeding device 1 is inclined at an angle of 45°; the scrap steel bars thrown into the feeding device 1 can slide to the bottom of the feeding device 1 by their own weight and directly enter the scrap steel bar diameter identification device 2.

[0046] In this embodiment, the feeding device 1 tilted at an angle of 45° guides the scrap steel bars into the steel bar diameter identification device 2 at 45°.

[0047] It should be noted that the feeding device 1 is one of the inclined funnel-type feeding device 1a and the inclined box-type feeding device 1b, wherein the inclined funnel-type feeding device 1a is a funnel-shaped device with a large upper opening and a small lower opening, a smooth curved wall, and an inclined angle; while the inclined box-type feeding device 1b is an inclined smooth box-shaped surface, and the lower part of the sliding surface adopts a curved surface transition. The bottom end of the feeding device 1 is welded and sealed to the feeding place of the scrap steel bar diameter identification device 2 to ensure that the scrap steel bars can slide straight into the bottom of the feeding device 1 by their own gravity when the material is manually fed in any way.

[0048] See also Figures 1 to 4 In this embodiment, the scrap steel bar diameter identification device 2 is composed of a protective shell 21, a feed port 22, a driving roller 23, a conveyor belt 24, a material blocking strip 25, a clamp 26, a magnet 27, a driving motor 28 and a baffle 210. Among them, the number of the driving rollers 23 is two, and they are rotatably installed in the protective shell 21. The conveyor belt 24 is sleeved on the driving roller 23. The clamp 26 and the material blocking strip 25 are both installed on the conveyor belt 24, and the clamp 26 is located on one side of the material blocking strip 25. The driving motor 28 is fixedly installed on one side of the protective shell 21 and is connected to the protective shell 21. One end of a driving roller 23 is fixedly connected, the feed port 22 is opened on the upper surface of the protective shell 21, the magnet 27 is embedded in the inner side of the clamp 26, the blocking bar 25 is provided with an arc groove adapted to the clamp 26, and a discharge port 29 is opened at the bottom of the protective shell 21. The baffle 210 is fixedly connected to the inner bottom wall of the protective shell 21 and is located on one side of the discharge port 29; the baffle 210 is inclined, which can block the steel bars adsorbed in the clamp 26 at the discharge port 29, so that the screened steel bars fall along the discharge port 29 to the protective shell 21.

[0049] In this embodiment, the driving rollers 23 on both sides drive the conveyor belt 24 and the blocking strip 25 and the clamp 26 on the conveyor belt 24 to rotate in the opposite direction from front to back, and the blocking strip 25 can block the steel bars at the feed port 22 and prevent them from falling into the protective shell 21. The arc groove on the blocking strip 25 cooperates with the clamp 26 to receive and identify the scrap steel bars of corresponding diameter and position them on its inner side. After the scrap steel bars to be positioned are blocked by the baffle 210, they can fall along the protective shell 21 to the steel bar length identification and compartment storage device 3.

[0050] It should be noted that the funnel-shaped feeding device 1a or the box-shaped feeding device 1b is welded and sealed with the feed port 22 of the protective shell 21 in the scrap steel bar diameter identification device 2, and the feed port 22 is composed of two horizontal plates and a side plate. The side plates are hinged on the two horizontal plates and fixed to the side plates by bolts. The two horizontal plates are fixed to the protective shell 21 and are sealed and fixed to the funnel-shaped feeding device 1a or the box-shaped feeding device 1b, so that the side plates can be opened to take out the steel bars whose diameters have not been screened.

[0051] The material blocking strip 25 is a rubber strip, so that the material blocking strip 25 can rotate along with the rotation of the conveyor belt 24;

[0052] Among them, the number of clamps 26 is sixteen, and the sixteen clamps 26 are symmetrically distributed on the conveyor belt 24 in groups of four. Each group of clamps 26 is divided into four models, namely ≤12mm, 14mm~18mm, 20mm~25mm, and >25mm, and the four models of clamps 26 are distributed on the conveyor belt 24 in sequence and at equal intervals, so that each model of clamp 26 can receive steel bars of corresponding diameter.

[0053] See also Figure 5 and 6 In this embodiment, the steel bar length identification and compartment storage device 3 includes a mounting plate 31, an electric telescopic rod 32, a support block 33, a photoelectric sensor 34, a sliding bar 35, a linear module 36, and a storage box 37. Among them, there are two mounting plates 31, which are symmetrically fixed to the bottom of the protective shell 21, there are two groups of electric telescopic rods 32, which are symmetrically fixed on the two mounting plates 31, there are two groups of support blocks 33, which are respectively fixed at the output ends of the two groups of electric telescopic rods 32, the sliding bar 35 is fixed between the two groups of support blocks 33, the photoelectric sensor 34 is installed on the support block 33, the storage box 37 is installed between the two mounting plates 31, and the linear module 36 is installed below the storage box 37.

[0054] In this embodiment, for the scrap steel bars entering straight, when the scrap steel bar head just enters the steel bar length identification and storage area, it falls on the two sliding bars 35, and the photoelectric sensor 34 starts to start after sensing the scrap steel bars, and moves with the scrap steel bars at the same speed until it exceeds the length of the scrap steel bars. The scrap steel bars automatically fall into the storage box 37 set below, and the steel bars are identified, classified and stored in four gears of length to complete the steel bar length identification.

[0055] It should be noted that the steel bar length identification and compartment storage device 3 is to identify and store the scrap steel bars after diameter identification according to their length. The length identification is divided into four gears, the first gear ≤ 200mm, the second gear 200mm~400mm, the third gear 400mm~600mm, and the fourth gear 600mm~1000mm. When a certain type of scrap steel bar begins to enter the first gear, the first-gear sliding block 35 begins to slide synchronously at the same speed, gradually increasing the distance from the first sliding block 35 until 200mm. If the scrap steel bar is ≤ 200mm, the scrap steel bar falls into the corresponding storage box at the bottom.

[0056] If the scrap steel bar is larger than 200mm, the sliding bar 35 and the scrap steel bar will enter the second gear together. When a certain type of scrap steel bar enters the second gear as a whole, the distance of the sliding bar 35 is 200mm. The sliding bar 35 on one side will slide backward towards the position 200mm away from the sliding bar 35 on the other side until it reaches 400mm. If the scrap steel bar is larger than 200mm and ≤400mm, the scrap steel bar will fall into the corresponding storage box at the bottom.

[0057] If the scrap steel bar is larger than 400mm, the sliding block 35 and the scrap steel bar will enter the third gear together. When a certain type of scrap steel bar enters the third gear as a whole, the sliding block 35 is 400mm away from the other side of the sliding block 35. The sliding block 35 on one side slides backward toward the 400mm position away from the other side of the sliding block 35 until it reaches 600mm. If the scrap steel bar is larger than 400mm and ≤600mm, the scrap steel bar will fall into the corresponding storage box at the bottom.

[0058] If the scrap steel bar is larger than 600mm, the sliding block 35 and the scrap steel bar enter the fourth gear together. When a certain type of scrap steel bar enters the fourth gear as a whole, the sliding block 35 is 600mm away from the other side of the sliding block 35. The sliding block 35 on one side slides backward toward the position 600mm away from the other side of the sliding block 35 until it reaches 1000mm, and the scrap steel bar falls into the corresponding storage box 37 at the bottom.

[0059] The two sliding blocks 35 are fixedly connected to the opposite sides of the two sliding blocks 35 with a stabilizing rod 310. The stabilizing rod 310 on the opposite sides of the two sliding blocks 35 can ensure that the steel bars can fall stably on the two sliding blocks 35 when the two sliding blocks 35 receive the third and fourth gear length steel bars.

[0060] Among them, the total number of storage boxes 37 in the steel bar length identification and compartment storage device 3 is sixteen. The sixteen storage boxes 37 are arranged in four vertical and four horizontal steps and are divided into two layers along the height direction. The width of each vertical column of storage boxes 37 gradually increases from one side to the other.

[0061] In addition, the linear module 12 below the storage box 37 is composed of an electric slide rail and an electric slider. The electric slide rail is installed on the steel bar transfer device 5 and passes through the steel bar packaging device 4, and the electric slider is slidably installed on the electric slide rail. An electric slider is correspondingly installed under each storage box 37, so that each storage box 37 can slide horizontally on the electric slide rail on the same side.

[0062] Among them, a pressure sensor 39 is fixedly installed on the inner side of each storage box 37, and a pressure plate 38 located above the pressure sensor 39 is slidably connected to the inner side of each storage box 37, which is used to sense the number of steel bars received in each storage box 37, so that after each storage box 37 receives steel bars of corresponding weight, it is used to cooperate with the linear module 36 to drive the storage box 37 to slide into the steel bar packaging device 4 for packaging processing.

[0063] The working principle of the above embodiment is:

[0064] After the scrap steel bars are fed into the feeding device 1 through the inclined funnel-type feeding device 1a or the inclined box-type feeding device 1b, the scrap steel bars are introduced into the feeding port 22 of the steel bar diameter identification device 2 through the feeding device 1, and then the power is turned on, and the driving motor 28 is started to drive the driving roller 23 and the conveyor belt 24 to rotate. The clamp 26 on the conveyor belt 24 cooperates with the blocking strip 25 to pick up the steel bars of the corresponding diameter, and the steel bars are adsorbed by the magnet 27. The adsorbed steel bars are conveyed to the discharge port 29 and blocked by the baffle 210, and can fall along the discharge port 29;

[0065] The length identification of scrap steel bars is achieved through the sliding bar 35 driven by the electric telescopic rod 32, and the spacing gradually increases slowly, so as to realize the classification of steel bar lengths, so that the classified steel bars fall into the double-layer 16 storage boxes under the sliding bar 35. Finally, the pressure plate 38 in the storage box 37 acts on the pressure sensor 39 and cooperates with the linear module 36 to drive the storage box to separate left and right along the slide rail and enter the steel bar packaging device 4 for automatic packaging, and the steel bar transfer device 5 will package the steel bars into bundles for external transportation.

[0066] The electrical components appearing in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

[0067] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0068] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A construction waste steel bar sorting system, characterized in that: include: A feeding device (1), a scrap steel bar diameter identification device (2), a scrap steel bar length identification and compartment storage device (3), a steel bar packaging device (4), and a steel bar transfer device (5); The feeding device (1) is formed by bending a thin-walled steel plate, and the inner wall is smooth, wherein the feeding device (1) is inclined at an angle of 45°; the scrap steel bars fed into the feeding device (1) can slide to the bottom of the feeding device (1) by their own weight and directly enter the scrap steel bar diameter identification device (2); The scrap steel bar diameter identification device (2) is composed of a protective shell (21), a feed port (22), a driving roller (23), a conveyor belt (24), a material stopper strip (25), a clamp (26), a magnet (27), a driving motor (28) and a baffle (210), wherein the number of the driving rollers (23) is two and they are rotatably mounted in the protective shell (21), the conveyor belt (24) is sleeved on the driving roller (23), the clamp (26) and the material stopper strip (25) are both mounted on the conveyor belt (24), and the clamp (26) is located on the material stopper strip ( 25), a driving motor (28) is fixedly mounted on one side of the protective shell (21) and fixedly connected to one end of one of the driving rollers (23), a feed port (22) is provided on the upper surface of the protective shell (21), a magnet (27) is embedded in the inner side of the clamp (26), an arc-shaped groove matching the clamp (26) is provided on the retaining bar (25), a discharge port (29) is provided below the protective shell (21), and a baffle (210) is fixedly connected to the inner bottom wall of the protective shell (21) and is located on one side of the discharge port (29); The driving rollers (23) on both sides drive the conveyor belt (24) and the blocking strips (25) and the clamps (26) on the conveyor belt (24) to rotate in reverse from front to back, so as to position the scrap steel bars with accurately identified diameters at their proper positions. After being blocked by the baffles (210), the scrap steel bars to be positioned can fall along the protective shell (21) onto the steel bar length identification and compartment storage device (3); The steel bar length identification and compartment storage device (3) comprises a mounting plate (31), an electric telescopic rod (32), a support block (33), a photoelectric sensor (34), a sliding bar (35), a linear module (36), and a storage box (37), wherein the number of the mounting plates (31) is two and they are symmetrically fixedly connected to the bottom of the protective shell (21), the number of the electric telescopic rod (32) is two groups and they are symmetrically fixed on the two mounting plates (31), the number of the support blocks (33) is two groups and they are respectively fixed to the output ends of the two groups of electric telescopic rods (32), the sliding bar (35) is fixed between the two groups of support blocks (33), the photoelectric sensor (34) is installed on the support block (33), the storage box (37) is installed between the two mounting plates (31), and the linear module (36) is installed below the storage box (37); The two sliding blocks (35) are fixedly connected to a stabilizing rod (310) on opposite sides thereof; That is, the storage steel bar diameter identification device (2) senses the scrap steel bar when the scrap steel bar head just enters the steel bar length identification and storage area, starts to move with the scrap steel bar at the same speed until it exceeds the scrap steel bar length, and the scrap steel bar automatically falls into the storage box (37) provided below, and the steel bar is identified and classified in four gears for length and stored; The steel bar packing device (4) is used to bundle the steel bars of the same type in diameter and length in the same storage box for subsequent transportation; The steel bar transfer device (5) is used to transfer the packed waste steel bars from the same storage bin to the steel bar processing shed for secondary waste utilization.

2. A construction waste steel bar sorting system according to claim 1, characterized in that: The feeding device (1) is one of an inclined funnel-type feeding device (1a) and an inclined box-type feeding device (1b), wherein the inclined funnel-type feeding device (1a) is a funnel-shaped device with a large upper opening and a small lower opening, a smooth curved wall, and an inclined angle; while the inclined box-type feeding device (1b) is an inclined smooth box-shaped surface, and the lower part of the sliding surface adopts a curved surface transition. The bottom end of the feeding device (1) is welded and sealed with the feed port (22) of the scrap steel bar diameter identification device (2), ensuring that the scrap steel bars can slide straight into the bottom of the feeding device (1) by their own gravity when manually feeding the materials in any way.

3. The construction waste steel bar sorting system according to claim 1, characterized in that: The number of the clamps (26) is sixteen, and the sixteen clamps (26) are symmetrically distributed on the conveyor belt (24) in groups of four. Each group of the clamps (26) is divided into four models, namely ≤12mm, 14mm~18mm, 20mm~25mm, and >25mm, and the four models of clamps (26) are distributed on the conveyor belt (24) in sequence and at equal intervals.

4. The construction waste steel bar sorting system according to claim 1, characterized in that: The steel bar length identification and compartment storage device (3) is configured to identify and store scrap steel bars after diameter identification according to their lengths. The length identification is divided into four levels: the first level ≤ 200 mm, the second level 200 mm to 400 mm, the third level 400 mm to 600 mm, and the fourth level 600 mm to 1000 mm. When a certain type of scrap steel bar begins to enter the first level, the first-level sliding block (35) begins to slide synchronously at the same speed, gradually increasing the distance from the first sliding block (35) until 200 mm. If the scrap steel bar is ≤ 200 mm, the scrap steel bar falls into the corresponding storage box at the bottom. If the scrap steel bar is larger than 200 mm, the sliding bar (35) and the scrap steel bar enter the second gear together. When a certain type of scrap steel bar enters the second gear as a whole, the distance of the sliding bar (35) is 200 mm, and the sliding bar (35) on one side slides backward toward a position 200 mm away from the sliding bar (35) on the other side until it reaches a position 400 mm. If the scrap steel bar is larger than 200 mm and ≤ 400 mm, the scrap steel bar falls into the corresponding storage box at the bottom. If the scrap steel bar is larger than 400 mm, the sliding bar (35) and the scrap steel bar enter the third gear together. When a certain type of scrap steel bar enters the third gear as a whole, the sliding bar (35) is 400 mm away from the sliding bar (35) on one side and slides backwards to 600 mm away from the sliding bar (35) on the other side. If the scrap steel bar is larger than 400 mm and smaller than 600 mm, the scrap steel bar falls into the corresponding storage box at the bottom. If the scrap steel bar is larger than 600 mm, the sliding bar (35) and the scrap steel bar enter the fourth gear together. When a certain type of scrap steel bar enters the fourth gear as a whole, the sliding bar (35) is at a distance of 600 mm, and the sliding bar (35) on one side slides backward toward a position 600 mm away from the sliding bar (35) on the other side until it reaches a position 1000 mm, and the scrap steel bar falls into the corresponding storage box (37) at the bottom.

5. The construction waste steel bar sorting system according to claim 4, characterized in that: The total number of storage boxes (37) in the steel bar length identification and compartment storage device (3) is sixteen. The sixteen storage boxes (37) are arranged in four vertical and four horizontal steps and are divided into two layers along the height direction. The width of each vertical row of storage boxes (37) gradually increases from one side to the other.

6. The construction waste steel bar sorting system according to claim 5, characterized in that: The linear module (36) below the storage box (37) is composed of an electric slide rail and an electric slider. The electric slide rail is installed on the steel bar transfer device (5) and passes through the steel bar packaging device (4). The electric slider is slidably installed on the electric slide rail, and an electric slider is correspondingly installed below each storage box (37), so that each storage box (37) can slide horizontally on the electric slide rail on the same side.

7. The construction waste steel bar sorting system according to claim 5, characterized in that: A pressure sensor (39) is fixedly mounted on the inner side of each storage box (37), and a pressure plate (38) located above the pressure sensor (39) is slidably connected to the inner side of each storage box (37) for sensing the number of steel bars received in each storage box (37).

8. The construction waste steel bar sorting system according to claim 1, characterized in that: The steel bar packaging device (4) is used to bundle the classified and stored waste steel bars in a storage box.

9. The construction waste steel bar sorting system according to claim 1, characterized in that: The steel bar transfer device (5) is to transport the classified and stored waste steel bars to the steel bar processing shed for secondary use, and the waste materials cannot be effectively used and sold as scrap.

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