A mechanical sorting device and method for multiple specifications of bolts based on both diameter and length.

Abstract

This invention discloses a dual-dimensional mechanical sorting device and method for bolts of various specifications based on both diameter and length, relating to the field of automated sorting technology for industrial fasteners. The device includes a bolt head diameter screening module, a multi-size bolt zoned transport module, a magnetic suction rotating feeding module, a rotating impact and storage module, and a bolt sorter cover. The main shaft serves as the overall support structure, with each module coaxially assembled and working collaboratively. During operation, bolts are graded by head diameter and fall into multi-level tracks via a screening disc, then directionally conveyed by a spiral channel. They are then adsorbed by magnetic patches and unloaded by rotation for posture correction. Finally, impact rods at different heights complete the impact sorting and classification by length. This invention achieves continuous automated sorting based on both diameter and length, offering advantages such as simple structure, stable operation, high sorting accuracy, convenient maintenance, and low cost. It is suitable for batch bolt sorting operations in various scenarios such as hardware processing and mechanical assembly.

Description

Technical Field

[0001] This invention relates to the field of industrial standard bolt sorting technology, specifically to a mechanical sorting device and method for bolts of various specifications in terms of diameter and length. Background Technology

[0002] In industries such as machining, assembly, and hardware manufacturing, bolts are commonly used fasteners with diverse specifications and complex dimensions. Industrial production often requires sorting bolts of different specifications for accurate selection. Traditional bolt sorting relies heavily on manual screening, classification, and storage, resulting in low efficiency, poor accuracy, and high costs, making it difficult to meet the demands of industrialized mass production. Existing bolt sorting devices often suffer from complex structures, low sorting accuracy, and poor adaptability. Some devices can only sort bolts of a single specification, failing to achieve simultaneous and efficient sorting of multiple specifications. Furthermore, bolts are prone to jamming and shifting during transportation and sorting, affecting the continuity and stability of the sorting process. Therefore, there is an urgent need for a rapid bolt sorting device with a simple structure, high sorting efficiency, and high accuracy to overcome the shortcomings of existing technologies. Summary of the Invention

[0003] The technical problem to be solved by this invention is to address the shortcomings of the prior art by proposing a dual-dimensional mechanical sorting device for bolts of various specifications based on both diameter and length. By setting up a multi-stage mechanical transmission screening, magnetic grading conveying, and rotary impact collection mechanism, bolts are accurately sorted sequentially according to head specifications and rod length, while simultaneously ensuring the structural stability and operational efficiency of the sorting process.

[0004] To achieve the above-mentioned technical features, the objective of this invention is as follows: The first aspect provides a dual-dimensional mechanical sorting device for bolts of various specifications based on diameter and length, including a bolt head diameter screening module, which is fixedly connected to a multi-size bolt partitioning and guiding module via a threaded structure; the bottom of the bolt head diameter screening module is uniformly provided with threaded holes and is fixedly connected to a bolt sorter cover; the bolt sorter cover is fixedly connected to the multi-size bolt partitioning and guiding module via threaded holes on the surface of its sorting groove; the bolt sorter cover is fixedly connected to a magnetic rotary feeding module via threaded holes on the surface of its sorting disc connecting area; the rotary impact and storage module has a main shaft inside, which is fixedly connected to the bolt head diameter screening module; the main shaft supports the bolt head diameter screening module and indirectly supports the multi-size bolt partitioning and guiding module, the magnetic rotary feeding module, the rotary impact and storage module, and the bolt sorter cover.

[0005] Preferably, the screw diameter screening module includes a screw, a washer, a gear retaining ring, a gear, a rotating shaft, and a rotating gear ring; the lower end face of the screw head is connected to the washer; the lower end face of the washer is connected to the gear retaining ring; the lower end face of the gear retaining ring is connected to the gear; the gear and the rotating gear ring mesh with each other to transmit power; the rotating shaft is driven to rotate by a motor; the upper surface of the rotating shaft is provided with an internal thread structure and is fixedly connected to the screw.

[0006] Preferably, the multi-size bolt partitioning guide module includes an inner ring of transport track, a middle ring of transport track, an outer ring of transport track, a classifier base, and a classifier interface; the inner ring, middle ring, and outer ring of transport track are coaxially arranged from the inside to the outside to form a graded transport track; the top of the inner ring, middle ring, and outer ring of transport track is fixedly connected to the bolt head diameter screening module through circumferentially evenly distributed threaded holes; the classifier base is provided with bolt holes and is fixedly connected to the classifier interface; the classifier base is fixedly connected to the bolt sorter cover through threaded holes on its surface.

[0007] Preferably, the magnetic rotary feeding module includes a transport track, a motor, a sorting tray, a rotating retaining ring, magnetic patches, and a motor base; the motor is fixedly connected to the motor base through a threaded hole, and the output end of the motor is connected to the rotating retaining ring through an output shaft to transmit torque; magnetic patches are attached to the circumferential teeth of the rotating retaining ring; the bottom surface of the motor base is fixedly connected to the sorting tray through a threaded hole; the surface of the sorting tray has threaded holes and is fixedly connected to the transport track; the discharge port of the transport track of the sorting tray corresponds to the locking position of the bolt retaining ring slot; the surface of the sorting tray is fixedly connected to the bolt sorter cover through threaded holes.

[0008] Preferably, the striking and storage component of the rotating striking and storage module includes a main shaft, a bolt retaining ring, a retaining ring baffle, a striking rod, a sorting box, and a base; the main shaft has threads on its outer side and is fixedly connected to the base; the upper side of the base has a retaining groove and is movably connected to the lower protrusion of the bolt retaining ring; the main shaft is fixedly connected to the retaining ring baffle; the bolt retaining ring and the retaining ring baffle work together to limit the position of the bolt; a movable striking rod is sleeved on the main shaft; a sorting box is correspondingly set below the striking rod; after the striking rod completes the bolt sorting and striking, the bolt falls into the corresponding sorting box for storage; the sorting box is fixedly connected to the base.

[0009] Preferably, the bolt sorter cover includes a sorter base connection area, a sorter groove, and a sorting tray connection area; the sorter base connection area is fixedly connected to the sorter base bolt of the multi-size bolt partition guide module through a threaded hole; the sorting tray connection area is fixedly connected to the sorting tray bolt of the magnetic suction rotating feeding module through a threaded hole.

[0010] Preferably, the screw head diameter screening module is the initial screening end for bolt sorting, used to achieve preliminary grading of bolts; the track of the multi-size bolt partition guide module is used to achieve directional transport of bolts; the magnetic suction rotating feeding module is used to complete the bolt posture conversion and adjust the conveying cycle to avoid jamming and accumulation; the rotating impact and storage module is the terminal sorting and storage end, used to achieve precise impact separation and classified collection of bolts.

[0011] Preferably, the rotating gear ring of the screw diameter screening module is linked with the transmission structure of the multi-size bolt partitioned conveying module to realize primary screening and partitioned conveying; The magnetic attraction patch of the magnetic rotating feeding module is periodically controlled by a motor to ensure stable attraction and precise unloading of bolts during transportation.

[0012] Preferably, wear-resistant bushings or rolling bearings are provided between the screening disc and the rotating shaft, at the meshing point of the gear and the rotating gear ring, at the connection point of the sorting disc and the rotating retaining ring, and at the rotating hinge point of the striking rod, in order to reduce the frictional resistance of the components.

[0013] Another aspect of the present invention provides a method for sorting bolts using a dual-dimensional mechanical sorting device for bolts of various specifications based on diameter and length, comprising the following steps: S1, Screw head diameter screening: Place the bolts to be sorted in the screw head diameter screening module. Drive the gear and rotating gear ring through the rotating shaft to make the bolts move from the inside to the outside along the screen plate. Bolts with different head diameters fall into the grading track through the corresponding screen holes, completing the initial screening and zoned feeding. S2, graded directional conveying: the screened bolts are spirally conveyed along the inner ring, middle ring and outer ring of the conveying track of the multi-size bolt zone guide module, and respectively enter the corresponding magnetic suction rotating feeding module; S3, Magnetic Transfer and Attitude Adjustment: The magnetic patch of the magnetic rotating feeding module is powered on to attract the bolt. After rotating to a preset angle, the power is cut off and the bolt is released, so that the bolt enters the rotating impact and storage module in a vertical position. S4, Length Sorting and Storage: The main shaft drives the striking rod to rotate, and the striking rods of different heights drive the bolts of corresponding lengths into the sorting box, completing the sorting and storage of bolts in two dimensions: diameter and length.

[0014] The present invention has the following beneficial effects: 1. By sequentially setting up a screw head diameter screening module, a multi-size bolt partitioning and guiding module, a magnetic suction rotating feeding module, and a rotating impact and storage module, the bolt head diameter and rod length are sorted sequentially in two dimensions, enabling accurate classification of bolts of various specifications and providing reliable support for the automated and efficient sorting of large batches of fasteners.

[0015] 2. Using gears The gear ring drive combined with the screening disc creates a purely mechanical screening structure that significantly improves the efficiency and accuracy of head diameter screening compared to manual sorting. At the same time, the magnetic adsorption and three-level grading track enable contactless conveying, preventing bolts from being scratched, deformed, or stuck during the conveying process, effectively ensuring the integrity of the bolts' appearance and dimensions.

[0016] 3. This device adopts a modular design, which breaks down the sorting process into four independent functional units: diameter screening, graded conveying, posture correction, length sorting and storage. Each unit can be disassembled, debugged and parts replaced independently, which greatly improves the ease of device maintenance. The modules work together to achieve integrated continuous operation, which significantly shortens the sorting cycle and improves the overall operation efficiency.

[0017] 4. The core load-bearing components such as the screening disc, sorting disc, and impact rod are structurally optimized and lightweighted. While ensuring structural strength and operational stability, the overall weight of the device and the amount of consumables are reduced, thereby reducing manufacturing costs and operating energy consumption, resulting in more significant economic benefits.

[0018] 5. The main shaft serves as the overall support structure, and the bolt sorter cover enables precise positioning and fastening of each module. The device has high overall rigidity, stable operation, and low vibration, and can work continuously and stably for a long time, making it suitable for harsh industrial environments.

[0019] 6. Wear-resistant bushings or rolling bearings are installed in key moving parts to effectively reduce transmission friction resistance, reduce component wear, extend the service life of the device, and further improve the reliability of equipment operation. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure and module distribution of the present invention.

[0022] Figure 2 This is a schematic diagram of the header filtering partition module structure.

[0023] Figure 3 This is a structural diagram of a multi-size bolt partitioned transport module.

[0024] Figure 4 This is a schematic diagram of the magnetic rotation transmission module.

[0025] Figure 5 This is a schematic diagram of a rotating impact storage structure.

[0026] Figure 6 This is a schematic diagram of the cover structure of the bolt sorter.

[0027] Figure 7This is a diagram showing the state of bolts of different lengths on the rotating impact and storage module during the sorting process of this invention.

[0028] In the diagram: 1. Screw head diameter screening module; 2. Multi-size bolt partitioning and conveying module; 3. Magnetic suction and rotating feeding module; 4. Rotary impact and storage module; 5. Bolt sorter cover. Screw 1-1, Washer 1-2, Gear retaining ring 1-3, Gear 1-4, Shaft 1-5, Rotating gear ring 1-6, Screening disc 1-7, Screening disc retaining ring 1-8; Inner ring of transport track 2-1, middle ring of transport track 2-2, outer ring of transport track 2-3, classifier base 2-4, classifier transport trough 2-5, classifier interface 2-6; Transport track 3-1, motor 3-2, sorting tray 3-3, rotating retaining ring 3-4, magnetic adhesive patch 3-5, motor base 3-6; Main shaft 4-1, bolt retainer 4-2, retainer baffle 4-3, striking rod 4-4, sorting box 4-5, base 4-6; Classifier base connection area 5-1, classifier protrusion 5-2, classification disk connection area 5-3. Detailed Implementation

[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. This example is implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0030] Example 1: To achieve modular integration and stable support of the overall device, such as Figure 1 As shown, a dual-dimensional mechanical sorting device for bolts of various diameters and lengths includes a bolt head diameter screening module 1, a multi-size bolt partitioned transport module 2, a magnetic suction rotating feeding module 3, a rotating impact and storage module 4, and a bolt sorter cover 5. The multi-size bolt partitioned transport module 2 is fixedly connected to the bolt sorter cover 5 via threaded holes. The bolt sorter cover 5 is fixedly connected to the multi-size bolt partitioned transport module 2 via a classifier protrusion 5-2 and to the magnetic suction rotating feeding module 3 via a classification disc connection area 5-3. The rotating impact and storage module 4 has a main shaft 4-1 inside, the upper end of which is fixedly connected to the bolt head diameter screening module 1. The main shaft 4-1 supports the bolt head diameter screening module 1 and indirectly supports the other modules. This structure is supported by the main shaft, with each module tightly assembled, resulting in high overall rigidity and precise positioning, ensuring continuous operation without shaking or misalignment.

[0031] Furthermore, to achieve the initial mechanical screening of bolt head diameter, such as... Figure 2As shown, the screw diameter screening module 1 includes a rotating shaft 1-5, a rotating gear ring 1-6, a screening disc 1-7, a gear retaining ring 1-3, a gear 1-4, a screw 1-1, and a washer 1-2. The rotating shaft 1-5 is fixedly connected to the main shaft 4-1. The rotating shaft 1-5 is driven by the gear 1-4 meshing with the rotating gear ring 1-6. The rotating gear ring 1-6 drives the bolt to move from the inside to the outside along the screening disc 1-7, completing the grading and falling through different diameter slots. The gear retaining ring 1-3 is fixedly connected to the rotating shaft 1-5 by the screw 1-1, and a washer 1-2 is provided between the gear retaining ring 1-3 and the screw 1-1 to prevent loosening. During operation, the motor drives the rotating shaft to rotate, and the bolt falls into the screen holes under the combined action of centrifugal force and gravity. This mechanism provides reliable screening, does not jam, and can quickly distinguish between various screw diameters.

[0032] Furthermore, to achieve directional diversion and interference-free conveying of the bolts after screening, such as Figure 3 As shown, the multi-size bolt zoned conveying module 2 includes an inner conveying track 2-1, a middle conveying track 2-2, an outer conveying track 2-3, a classifier base 2-4, a classifier conveying trough 2-5, and a classifier interface 2-6. The upper ends of the three sets of tracks are fixedly connected to the screening disc 1-7 through threaded holes. The classifier base 2-4 is evenly arranged on the upper side of the classifier conveying trough 2-5 to receive bolts conveyed by the corresponding tracks. The classifier conveying trough 2-5 is fixedly connected to the classifier interface 2-6, and the classifier base 2-4 is bolted to the classifier conveying trough 2-5. The bolts are conveyed downwards along the spiral track. The three channels are independent of each other, preventing material mixing and blockage, and can stably deliver the bolts to the next workstation.

[0033] Furthermore, to achieve stable bolt adsorption, posture correction, and precise unloading, such as Figure 4 As shown, the magnetic suction rotating feeding module 3 includes a transport track 3-1, a motor 3-2, a sorting tray 3-3, a rotating retaining ring 3-4, magnetic adhesive patches 3-5, and a motor base 3-6. The motor base 3-6 is evenly distributed around the upper surface of the sorting tray 3-3 and fixed with bolts. The motor 3-2 is connected to the rotating retaining ring 3-4 for transmission, and magnetic adhesive patches 3-5 are attached to the teeth of the rotating retaining ring 3-4. The transport track 3-1 is arranged below the sorting tray 3-3, so that the bolts enter the bolt retaining ring 4-2 in a vertical position. During operation, the magnetic adhesive patches are energized to attract the bolt rods, and after rotating to a specified angle, the power is cut off and the bolts are released, falling vertically along the track for positioning. This mechanism can unify the bolt posture, avoid deviation and falling, and has a high feeding accuracy.

[0034] Furthermore, to achieve end-point sorting and storage based on bolt length, such as... Figure 5As shown, the rotating impact and storage module 4 includes a main shaft 4-1, a bolt retaining ring 4-2, a retaining ring baffle 4-3, an impact rod 4-4, a sorting box 4-5, and a base 4-6. The main shaft 4-1 is fixedly connected to the base 4-6, and the main shaft 4-1 is also fixedly connected to the retaining ring baffle 4-3. The retaining ring baffle 4-3 cooperates with the bolt retaining ring 4-2 for limiting movement. The bottom of the bolt retaining ring 4-2 is movably connected to the base 4-6. The base 4-6 is fixedly connected to the sorting box 4-5, and the impact rod 4-4 is located above the sorting box 4-5. Bolts are arranged flush on the head of the retaining ring. As the retaining ring rotates, they pass through impact rods of different heights. Bolts exceeding the length limit are blocked and fall into the corresponding sorting box. This structure provides intuitive and high-precision sorting, and can quickly distinguish multiple length specifications.

[0035] Furthermore, to achieve positioning, sealing, protection, reinforcement, and assembly limit for each module, such as... Figure 6 As shown, the bolt sorter cover 5 includes a sorter base connecting area 5-1, a sorter groove 5-2, and a sorting tray connecting area 5-3; the sorter base connecting area 5-1 is fixedly connected to the sorter base 2-4; the sorter groove 5-2 is used for internal module assembly and positioning; the sorting tray connecting area 5-3 is fixedly connected to the sorting tray 3-3. The cover encloses and protects the internal mechanism, while ensuring the coaxiality and operating clearance of each component, thus improving the overall integrity and safety of the device.

[0036] Furthermore, to ensure overall transmission concentricity and stable motion, such as Figure 2 , 3 As shown in Figures 4 and 5, the bottom of the main shaft 4-1 is fixedly connected to the base 4-6. The main shaft 4-1 is fitted with the classifier transport groove 2-5, the transport track 3-1, and the retaining ring baffle 4-3 to restrict radial movement. The main shaft 4-1 supports the screening disc 1-7, achieving overall support and positioning for the upper modules. As a central reference component, the main shaft ensures that all modules operate coaxially, without eccentricity or axial movement, significantly improving the lifespan and stability of the device.

[0037] Furthermore, to achieve efficient batch sorting of multiple length specifications, such as Figure 4 , 5 As shown, the striking rods 4-4 are set with three different heights, evenly arranged in a cycle, with the center surface of the striking rods aligned with the center surface of the cavity of the sorting box 4-5. The bolts are arranged flush with the lower end face of the head on the bolt retainer 4-2, and as the bolt retainer 4-2 rotates, they pass through the striking rods 4-4 of different heights in sequence to complete the length sorting. The height-differentiated striking combined with the flush head positioning can realize the one-time sorting of bolts of various lengths with the same diameter, resulting in high sorting efficiency and wide applicability.

[0038] The specific working principle of this invention is as follows: This invention achieves continuous automated sorting of bolt head diameter and rod length in two dimensions through a combination of mechanical screening, magnetic transfer, and rotary impact grading.

[0039] Diameter grading principle: Utilizing the screening disc 1 7. The sieve holes, with their sizes increasing from the inside out, are matched with a rotating toothed ring 1. 6. Drive the bolts to move radially, so that bolts with different head diameters fall into the corresponding grading track under the action of gravity, thereby realizing the initial mechanical screening according to the head diameter.

[0040] Directional conveying principle: The inner, middle and outer three-stage spiral tracks are arranged coaxially to form independent conveying channels that do not interfere with each other, so as to convey bolts of different diameters in a directional, non-mixing and non-jamming manner to the corresponding magnetic suction station.

[0041] Magnetic transport and attitude correction principle: through magnetic patches 3 The power on / off control of 5 enables stable adsorption and controllable unloading of bolts and rods, in conjunction with the transport track 3. 1. Guiding mechanism ensures that bolts enter the length sorting station in a uniform vertical position, guaranteeing subsequent sorting accuracy.

[0042] Length sorting principle: Based on the alignment of the bolt head with the bolt head, four striking rods of different heights are used for sorting. 4. Selectively strike bolts of different lengths to ensure they fall into their corresponding sorting boxes. 5. Achieve precise sorting of terminals based on length.

[0043] The entire device is based on the main shaft 4 With 1 as the central support, all modules are driven and linked to achieve screening. delivery transport Sorting Integrated storage and continuous operation.

[0044] Example 2: The method for integrated bolt sorting using the aforementioned bolt sorting device includes the following steps: like Figure 7 The diagram shows the internal structure of the rotating striking and storage module 4. The striking rod 4-4 has three different sizes, corresponding to bolts of different lengths. The bolts are arranged in sequence on the bolt retainer 4-2 with their heads flush with the lower end face.

[0045] Step 1. Screening tray 1 The 7 is equipped with grading sieve holes of increasing diameter from the inside out; the rotating shaft 1 of the drive screw diameter screening module 1 is also included. 5 drives gear 1 4. Rotating gear ring 1 6. Rotate the gear ring 1. 6. Push the bolts on the screen tray 1 7. Moving from the inside out; after the bolt encounters the sieve hole of the corresponding size, it enters the multi-stage track 2 under the action of gravity. 1, 2 2, 2 3; Through the screening disc 1 The initial screening of bolt head diameter was completed with specification adaptation of 7, followed by gear retaining ring 1. 3. Screening disc retaining ring 1 The 8 limit switches transport bolts of different head specifications to the feeding end of the multi-size bolt partition guide module 2, completing the head specification screening and partition feeding.

[0046] Step 2. After the bolts are screened by the bolt head diameter screening module 1, they enter the multi-size bolt partition guide module 2 according to the three different head diameters. The multi-size bolt partition guide module 2 is equipped with three sets of non-interfering spiral grading tracks, which transport the bolts to the feeding end of the corresponding magnetic suction rotating feeding module 3.

[0047] Step 3. The magnetic rotating feeding module 3 uses magnetic attachment 3 5. Adhesive bolts and rods achieve stable positioning; magnetic adhesive pads 3 5. Controlled independently by the motor; 3. Magnetic adhesive pads 5. When energized, the bolt is attracted, and the retaining ring rotates 3. 4. After rotating 180°, the motor is powered off, and the bolts, under the action of gravity, move along the transport track 3. 1. Enter the rotating strike and storage module 4.

[0048] Step 4. Rotation, impact, and storage module 4 is driven by a motor-driven spindle 4. 1 drives the striking lever 4 4. Rotation; via bolt retainer 4 2. Snap ring baffle 4 3 pairs are conveyed to the sorting tray 3 Bolt 3 is precisely positioned, using striking rods at different heights 4 4. Rotate and strike to drive bolts of different lengths and specifications into their corresponding sorting boxes. Within 5 days, the bolts are sorted and stored, thus achieving sequential screening and precise sorting based on head diameter and length.

[0049] Although the present invention has been described in detail through the foregoing embodiments, those skilled in the art can make changes and modifications to the implementation methods without departing from the core spirit of the invention. All such changes and modifications fall within the scope of protection defined by the appended claims.

Claims

1. A mechanical sorting device for bolts of various specifications, based on both diameter and length, characterized in that, The system includes a screw diameter screening module (1), which is fixedly connected to a multi-size bolt partition guide module (2) via a threaded structure. The screw diameter screening module (1) has threaded holes evenly distributed at its bottom and is fixedly connected to a bolt sorter cover (5). The bolt sorter cover (5) is fixedly connected to the multi-size bolt partition guide module (2) via threaded holes on the surface of its classifier protrusion (5-2). The bolt sorter cover (5) is fixedly connected to a magnetic rotary feeding module (3) via threaded holes on the surface of its classification disc connection area (5-3). The rotary impact and storage module (4) has a main shaft (4-1) inside, which is fixedly connected to the screw diameter screening module (1). The main shaft (4-1) supports the screw diameter screening module (1) and indirectly supports the multi-size bolt partition guide module (2), the magnetic rotary feeding module (3), the rotary impact and storage module (4), and the bolt sorter cover (5).

2. The mechanical sorting device for multiple specifications of bolts based on both diameter and length according to claim 1, characterized in that: The screw head diameter screening module (1) includes a screw (1-1), a washer (1-2), a gear retaining ring (1-3), a gear (1-4), a rotating shaft (1-5), and a rotating gear ring (1-6); the lower end face of the head of the screw (1-1) is connected to the washer (1-2); the lower end face of the washer (1-2) is connected to the gear retaining ring (1-3); the lower end face of the gear retaining ring (1-3) is connected to the gear (1-4); the gear (1-4) and the rotating gear ring (1-6) mesh with each other to transmit power; the rotating shaft (1-5) is driven to rotate by a motor; the upper surface of the rotating shaft (1-5) is provided with an internal thread structure and is fixedly connected to the screw (1-1).

3. The multi-specification bolt diameter and length dual-dimensional mechanical sorting device according to claim 2, characterized in that, The multi-size bolt partitioning guide module (2) includes an inner ring (2-1) of the transport track, a middle ring (2-2) of the transport track, an outer ring (2-3) of the transport track, a classifier base (2-4) and a classifier interface (2-6); the inner ring (2-1), the middle ring (2-2) and the outer ring (2-3) of the transport track are coaxially arranged from the inside to the outside to form a graded transport track; the top of the inner ring (2-1), the middle ring (2-2) and the outer ring (2-3) of the transport track are fixedly connected to the screw head diameter screening module (1) through circumferentially evenly arranged threaded holes; the classifier base (2-4) is provided with bolt holes and is fixedly connected to the classifier interface (2-6); the classifier base (2-4) is fixedly connected to the bolt sorter cover (5) through the threaded holes on its surface.

4. The multi-specification bolt diameter and length dual-dimensional mechanical sorting device according to claim 3, characterized in that, The magnetic suction rotating feeding module (3) includes a transport track (3-1), a motor (3-2), a sorting tray (3-3), a rotating retaining ring (3-4), a magnetic adhesive patch (3-5), and a motor base (3-6). The motor (3-2) is fixedly connected to the motor base (3-6) through a threaded hole. The output end of the motor (3-2) is connected to the rotating retaining ring (3-4) through an output shaft and transmits torque. The rotating retaining ring (3-4) has a magnetic adhesive patch (3-5) attached to its circumferential teeth. The bottom surface of the motor base (3-6) is fixedly connected to the sorting tray (3-3) through a threaded hole. The surface of the sorting tray (3-3) is provided with a threaded hole and is fixedly connected to the transport track (3-1). The discharge port of the transport track (3-1) of the sorting tray (3-3) corresponds to the slot of the bolt retaining ring (4-2). The surface of the sorting tray (3-3) is fixedly connected to the bolt sorter cover (5) through a threaded hole.

5. The mechanical sorting device for multiple specifications of bolts based on both diameter and length according to claim 4, characterized in that, The rotating striking and storage module (4) includes a main shaft (4-1), a bolt retainer (4-2), a retainer baffle (4-3), a striking rod (4-4), a sorting box (4-5), and a base (4-6). The main shaft (4-1) has threads on its outer side and is fixedly connected to the base (4-6). The upper side of the base (4-6) has a slot and is movably connected to the lower protrusion of the bolt retainer (4-2). The main shaft (4-1) is fixedly connected to the retainer baffle (4-3). The bolt retainer (4-2) and the retainer baffle (4-3) work together to limit the position of the bolt. A movable striking rod (4-4) is sleeved on the main shaft (4-1). A sorting box (4-5) is correspondingly set below the striking rod (4-4). After the striking rod (4-4) completes the bolt sorting and striking, the bolt falls into the corresponding sorting box (4-5) for storage. The sorting box (4-5) is fixedly connected to the base (4-6).

6. The multi-specification bolt diameter and length dual-dimensional mechanical sorting device according to claim 5, characterized in that, The bolt sorter cover (5) includes a sorter base connection area (5-1), a sorter groove (5-2), and a sorting disc connection area (5-3); the sorter base connection area (5-1) is bolted to the sorter base (2-4) of the multi-size bolt partition guide module (2) through a threaded hole; the sorting disc connection area (5-3) is bolted to the sorting disc (3-3) of the magnetic rotating feed module (3) through a threaded hole.

7. A dual-dimensional mechanical sorting device for multiple specifications of bolt diameter and length according to claim 6, characterized in that, The screw head diameter screening module (1) is the initial screening end for bolt sorting, used to achieve preliminary grading of bolts; the track of the multi-size bolt partition guide module (2) is used to achieve directional transport of bolts; the magnetic suction rotating feeding module (3) is used to complete the bolt posture conversion and adjust the conveying cycle to avoid jamming and accumulation; the rotating impact and storage module (4) is the terminal sorting and storage end, used to achieve precise impact separation and classified collection of bolts.

8. A dual-dimensional mechanical sorting device for multiple specifications of bolt diameter and length according to claim 6, characterized in that, The rotating gear ring (1-6) of the screw diameter screening module (1) is linked with the transmission structure of the multi-size bolt partition guide module (2) to realize primary screening and partition transportation. The magnetic attraction patch (3-5) of the magnetic attraction rotating feeding module (3) is periodically controlled by a motor to ensure stable adsorption and accurate unloading during bolt transportation.

9. A dual-dimensional mechanical sorting device for multiple specifications of bolts based on diameter and length, as described in claim 6, is characterized in that... Wear-resistant bushings or rolling bearings are provided between the screening disc (1-7) and the rotating shaft (1-5), at the meshing point of the gear (1-4) and the rotating gear ring (1-6), at the connection point of the sorting disc (3-3) and the rotating retaining ring (3-4), and at the rotating hinge point of the striking rod (4-4) to reduce the frictional resistance of the component movement.

10. A method for sorting bolts using the dual-dimensional mechanical sorting device for multi-specification bolts based on diameter and length as described in any one of claims 7-9, characterized in that, Includes the following steps: S1, Screw head diameter screening: Place the bolts to be sorted on the screw head diameter screening module (1), and then pass them through the rotating shaft (1). 5) Drive gear (1) 4) with rotating gear ring (1) 6) Rotate to make the bolt move along the screen disc (1 7) Moving from the inside out, bolts with different head diameters fall into the grading track through the corresponding screen holes, completing the initial screening and zoned feeding; S2, graded directional conveying: the screened bolts are conveyed along the inner ring (2) of the conveying track of the multi-size bolt zone guide module (2). 1) Transporting the middle circle of the track (2 2) Transporting the outer ring of the track (2 3) The screw conveyor feeds the materials into the corresponding magnetic rotary feeding modules (3). S3, Magnetic transfer and attitude adjustment: Magnetic patch (3) of the magnetic rotating feed module (3) 5) The bolt is attracted by the power and released after rotating at a preset angle, so that the bolt enters the rotating impact and storage module (4) in a vertical position. S4, Length sorting and storage: Main shaft (4 1) Drive the striking lever (4) 4) Rotation, striking rods at different heights (4) 4) Drive the bolts of the corresponding length into the sorting box (4 5) Complete the sorting and storage of bolts based on both diameter and length.

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