Modular multi-parameter screw sorting device

Abstract

The utility model discloses a modularization's multi -parameter screw sorting device, including stepped feeding module, diameter identification track, shape sorting module, length sorting mechanism, accomodate storage module and support plate. Through setting diameter identification track sorting different diameter's screw, through setting shape sorting module sorting different head shape's screw, through setting length sorting mechanism sorting different length's screw, only through one equipment can realize to diameter, head shape and length's multi -parameter screening, and process is simple and small, and need not manual one by one screening screw's diameter, length and head shape, improve sorting efficiency, reduce error rate and labor intensity, and each module adopts detachable mode and connects between, has not adopted fixed structure, can replace each module fast, has promoted the versatility and expandability.

Description

Technical Field

[0001] This utility model relates to the field of fastener sorting device technology, and more specifically to a modular multi-parameter screw sorting device. Background Technology

[0002] In fields such as machining, hardware manufacturing, and electronic assembly, screws are fundamental fasteners, and their sorting directly impacts production efficiency and product quality. Currently, screw sorting relies primarily on manual operation, which presents significant shortcomings.

[0003] Manual sorting relies on operators to individually screen screws by diameter, length, and head shape, such as hexagonal or round head. However, this method is inefficient, has a high error rate, and is labor-intensive. Operators must identify and manually place each screw, resulting in sorting speeds that cannot meet the demands of large-scale production. Furthermore, fatigue or visual errors can easily lead to specification confusion, increasing the risk of production line downtime. Prolonged repetitive work can also cause physical discomfort for operators, affecting production continuity.

[0004] The limited functionality of existing sorting equipment is also a significant technological bottleneck. Most devices only classify based on a single parameter, such as using a sieve to differentiate diameters or using photoelectric sensors to identify lengths, but they cannot simultaneously handle the comprehensive classification needs of head shape, diameter, and length. To achieve multi-parameter sorting, multiple single-function devices need to be connected in series, resulting in a cumbersome process, large space occupation, and a high risk of secondary mixing in intermediate stages.

[0005] Traditional mechanical sorting devices often employ fixed structures, making it difficult to quickly replace modules to accommodate screws of different sizes, further limiting their versatility and expandability. When multiple single-function devices are connected in series to perform multi-parameter screening based on head shape, diameter, and length, the process is cumbersome and space-consuming. Manual sorting is inefficient, has a low error rate, and is labor-intensive. Utility Model Content

[0006] (1) Technical problems to be solved

[0007] To overcome the shortcomings of the prior art, this utility model provides a modular multi-parameter screw sorting device that can classify screws by diameter, length and head shape, thereby improving sorting efficiency, reducing error rate and labor intensity, and allowing for quick replacement of modules, thus enhancing versatility and expandability.

[0008] (2) Technical solution

[0009] This utility model provides a modular multi-parameter screw sorting device, including a stepped feeding module, a diameter recognition track, a shape sorting module, a length sorting mechanism, a storage module, and a support plate;

[0010] The stepped feeding module is detachably connected to the diameter recognition track, the diameter recognition track is detachably connected to the shape sorting module, the length sorting mechanism is located below the shape sorting module, the storage module is detachably connected to the length sorting mechanism below, the storage module is detachably connected to the support plate, and the stepped feeding module and the shape sorting module are detachably mounted on the support plate above each other via support legs.

[0011] The stepped feeding module is used to automatically add screws to the diameter recognition track;

[0012] The diameter recognition track is used to sort screws of different diameters and transport them to the shape sorting module;

[0013] The shape sorting module is used to sort screws with different head shapes and convey them to the length sorting mechanism;

[0014] The length sorting mechanism is used to sort screws of different lengths and transport them to the storage module for storage.

[0015] Optionally, the stepped feeding module includes a feeding box, a bottom box, a small step plate, a large step plate, a sliding plate, four sliding plate axles, a handle assembly, a crank, a connecting rod, and a connecting rod axle;

[0016] Both the loading box and the bottom box are open-top boxes. The loading box has a first inclined plate on one side inside, which is used to receive the falling screws to be sorted. The loading box has two parallel track plates vertically on the other side inside. One end of the two track plates is fixedly installed on the first side wall of the loading box, and the other end of the two track plates is detachably connected to the diameter recognition track. There is a gap between the two track plates, and the top surfaces of the two track plates form a V-shape.

[0017] The lower end of the first inclined plate is provided with a base plate extending to the bottom of the two track plates. The base plate is provided with a first rectangular through hole, a second rectangular through hole and a third rectangular through hole that are parallel to each other. The first rectangular through hole is located directly below the gap between the two track plates. The second rectangular through hole and the third rectangular through hole are located between the first rectangular through hole and the first inclined plate. The second rectangular through hole is close to the track plate near the first inclined plate. The third rectangular through hole is close to the lower end of the first inclined plate. An upwardly extending partition is provided between the second rectangular through hole and the third rectangular through hole. The height of the partition is lower than the height of the two track plates. The top surface of the partition is an inclined surface with the same inclination direction as the first inclined plate. A seventh rectangular through hole is provided at the position corresponding to the gap between the first sidewall and the two track plates.

[0018] The bottom box is located below the loading box and is fixedly connected to the bottom plate. The second side wall of the bottom box, which is on the same side as the first side wall, has a rectangular recess. The bottom box is detachably connected to the shape sorting module. The bottom box contains the small step plate, the large step plate, and the slide plate. The small step plate and the large step plate are both T-shaped plates. The top surfaces of the small step plate and the large step plate are inclined surfaces with the same inclination direction as the first inclined plate. The small step plate and the large step plate have two obliquely parallel straight slot holes at corresponding positions. The two sides of the slide plate are connected to the small step plate and the large step plate respectively through two slide plate shafts. The slide plate shafts can move in the corresponding straight slot holes. The large step plate can move up and down through the second rectangular through hole. The small step plate can move up and down through the third rectangular through hole.

[0019] One end of the slide plate is provided with a continuously bent screw guide rod, which passes through the rectangular recess and the seventh rectangular through hole in sequence and is placed between the top surfaces of the two track plates. The other end of the slide plate is connected to the connecting rod through the connecting rod shaft. The crank is cam-shaped. The two sides of the connecting rod are respectively fixedly connected to the handle assembly and the small end of the crank. The large end of the crank is detachably connected to the shape sorting module. The large end of the crank is provided with a gear, which meshes with the disc gear of the shape sorting module.

[0020] When the handle assembly is cranked, the gear meshes with the disc gear and rotates. The crank drives the connecting rod to move, and the connecting rod drives the slide plate to move. The slide plate drives the small step plate and the large step plate to move up and down, conveying the screw to the top surface of the two track plates. The slide plate drives the screw guide rod to move horizontally, conveying the screw located on the top surface of the two track plates to the diameter recognition track. When the large step plate moves to the top, the top surface of the large step plate and the top surface of the track plate near the first inclined plate form a first inclined surface. When the small step plate moves to the top, the top surface of the small step plate and the top surface of the partition plate form a second inclined surface. The first inclined surface and the second inclined surface form a stepped structure.

[0021] Optionally, the screw guide rod includes a first bent rod, a second bent rod, and a third bent rod connected to each other. The first bent rod and the third bent rod are parallel to each other. The first bent rod passes through the rectangular recess, and the third bent rod passes through the seventh rectangular through hole.

[0022] Optionally, the handle assembly includes a handle, a handle shaft, and a handle locking block;

[0023] One end of the handle is provided with a handle shaft hole, and the other end is provided with a locking block hole. The handle shaft hole and the locking block hole are connected. The size of the locking block hole is larger than the size of the handle shaft hole. One end of the handle shaft is located in the handle shaft hole, and the other end passes through the connecting rod and is fixedly connected to the small end of the crank. The handle locking block is located in the locking block hole.

[0024] Optionally, the diameter recognition track includes a first slide plate and a second slide plate that are vertically arranged and detachably connected to the shape sorting module.

[0025] Both the first slide plate and the second slide plate are detachably connected to the stepped feeding module. There is a gap between the first slide plate and the second slide plate. The top of both the first slide plate and the second slide plate is inclined and a slide hole is formed between them. The slide hole includes a first slide hole located at the upper end of the inclined surface and a second slide hole located at the lower end of the inclined surface. The width of the first slide hole is smaller than the width of the second slide hole.

[0026] The first slide plate has a solid curved protrusion inside, which is located below the first slide hole. The second slide plate has a hollow curved protrusion protruding outward at a corresponding position inside.

[0027] Optionally, the shape sorting module further includes a disc cover and a disc;

[0028] The upper end of the disc cover is provided with a fourth rectangular through hole at the position corresponding to the first slide hole and a fifth rectangular through hole at the position corresponding to the second slide hole. A disc receiving cavity is provided on one side of the disc cover. The disc is disposed in the disc receiving cavity, and a cylindrical protrusion is provided at the center of the side of the disc. A hexagonal protrusion is provided on the outer side of the cylindrical protrusion. The cylindrical protrusion passes through the first circular hole of the disc cover. The hexagonal protrusion is fixedly connected to the hexagonal hole of the disc gear. The fourth rectangular through hole and the fifth rectangular through hole are both connected to the disc receiving cavity.

[0029] The disk is divided into an inner disk and an outer disk by a central circular plate. The inner disk and the outer disk have multiple outwardly opening compartments evenly distributed along their circumference. The compartments of the inner disk are located below the fifth rectangular through hole, and the compartments of the outer disk are located below the fourth rectangular through hole. The sidewall of the disk receiving cavity is divided into an inner slide and an outer slide by a central protrusion. The outer periphery of the inner disk is opposite to the inner slide, and the outer periphery of the outer disk is opposite to the outer slide. A second circular hole and a third circular hole are respectively provided directly below the inner slide and the outer slide, and the size of the second circular hole is larger than the size of the third circular hole.

[0030] Below the disc receiving cavity, two herringbone-shaped diversion tracks are connected side by side. Each herringbone-shaped diversion track has two sub-tracks. The second and third circular holes are respectively connected to the two sub-tracks on the same side of the two herringbone-shaped diversion tracks. Screws are conveyed to the length sorting mechanism through the outlets of the four sub-tracks of the two herringbone-shaped diversion tracks.

[0031] Optionally, the length sorting mechanism includes four second inclined plates;

[0032] The second inclined plate has a plurality of sixth rectangular through holes with parallel long sides and increasing lengths of the long sides from top to bottom. Each sixth rectangular through hole has a short side on the same straight line and the distance between each short side and one long side of the second inclined plate is less than a preset distance. There is a gap between the upper end face of the second inclined plate and the uppermost sixth rectangular through hole.

[0033] The exits of the four sub-tracks are respectively aligned with the positions of the four second inclined plates with spacing, and the storage module is located below the sixth rectangular through hole of the four second inclined plates.

[0034] Optionally, the second inclined plate has an upwardly extending baffle on the long side close to each of the sixth rectangular through holes, and a groove is provided between the baffle and the second inclined plate.

[0035] Optionally, the storage module includes four storage boxes that are detachably connected to four second inclined plates, and each storage box includes multiple storage compartments and a box body;

[0036] The box body has multiple cavities, the same number as the storage boxes, inside. Each cavity has an opening on its top and one side. The storage boxes are placed in the cavities and can be pulled out from the side openings of the cavities. Each storage box has a rectangular notch on the upper side wall near the side opening of the cavity. The number of storage boxes is the same as the number of sixth rectangular through holes in the corresponding second inclined plate. Each storage box is a lidless rectangular box, and each storage box is located below the corresponding sixth rectangular through hole.

[0037] Optionally, the top of the box body is provided with an H-shaped protrusion, and the bottom of the second inclined plate located above the box body is provided with an H-shaped groove, and the H-shaped protrusion is connected to the H-shaped groove.

[0038] In summary, this utility model embodiment provides a modular multi-parameter screw sorting device, including a stepped feeding module, a diameter recognition track, a shape sorting module, a length sorting mechanism, a storage module, and a support plate. The stepped feeding module is detachably connected to the diameter recognition track, and the diameter recognition track is detachably connected to the shape sorting module. The length sorting mechanism is located below the shape sorting module, and the storage module is detachably connected below the length sorting mechanism and detachably connected to the support plate. The stepped feeding module and the shape sorting module are detachably mounted on top of the support plate via support legs. The stepped feeding module is used to automatically add screws to the diameter recognition track; the diameter recognition track is used to sort screws of different diameters and convey them to the shape sorting module; the shape sorting module is used to sort screws of different head shapes and convey them to the length sorting mechanism; the length sorting mechanism is used to sort screws of different lengths and convey them to the storage module for storage. Therefore, by setting up a diameter recognition track to sort screws of different diameters, setting up a shape sorting module to sort screws of different head shapes, and setting up a length sorting mechanism to sort screws of different lengths, a single device can achieve multi-parameter screening of diameter, head shape, and length. The process is simple and occupies little space. There is no need for manual screening of screw diameter, length, and head shape one by one, which improves sorting efficiency, reduces error rate and labor intensity. Moreover, the modules are connected in a detachable manner, without a fixed structure, allowing for quick replacement of modules and improving versatility and scalability.

[0039] In the above technical solution, the modular multi-parameter screw sorting device provided by this utility model has the following beneficial effects:

[0040] 1. By setting a diameter recognition track to sort screws of different diameters, a shape sorting module to sort screws of different head shapes, and a length sorting mechanism to sort screws of different lengths, a single device can achieve multi-parameter screening of diameter, head shape, and length. The process is simple and occupies little space. There is no need for manual screening of screw diameter, length, and head shape one by one, which improves sorting efficiency, reduces error rate and labor intensity. Moreover, the modules are connected in a detachable manner, without a fixed structure, which allows for quick replacement of modules, improving versatility and scalability.

[0041] 2. This device adopts a modular design, and the modules are connected in a detachable manner. No special tools are required to disassemble, clean or replace parts, reducing maintenance complexity.

[0042] 3. By setting one end of the handle to have a handle shaft hole and the other end to have a locking block hole, the handle shaft hole and the locking block hole are connected, the size of the locking block hole is larger than the size of the handle shaft hole, and the handle locking block is set in the locking block hole, so that the handle locking block locks the handle and prevents the handle from moving when it is shaken.

[0043] 4. The screw is delivered to the diameter recognition track by a mechanical transmission method of "crank + connecting rod + gear transmission + slide linkage" driven by the handle assembly. No electricity is required, which can be used in special environments such as explosion-proof workshops and areas with unstable power supply, reducing equipment procurement and maintenance costs, while avoiding the risk of downtime due to electronic component failure.

[0044] 5. By setting the top of both the first slide plate and the second slide plate to be inclined and forming a slide hole between them, the slide hole includes a first slide hole located at the upper end of the inclined plate and a second slide hole located at the lower end of the inclined plate. The width of the first slide hole is smaller than the width of the second slide hole, so that small-diameter screws fall first, and then large-diameter screws fall, thereby filtering out screws of different diameters.

[0045] 6. The shape sorting module achieves mechanical sorting of screws with different head shapes, such as hexagonal heads and round heads, by using the cooperation between the fourth rectangular through hole of the disc cover and the compartment of the outer disc, as well as the limiting function of the outer slide, the cooperation between the fifth rectangular through hole and the compartment of the inner disc, as well as the limiting function of the inner slide.

[0046] 7. The length sorting mechanism adopts a design with six rectangular through holes of progressively increasing length. The length range is classified by the physical contact between the screw and each of the six rectangular through holes, which further improves the sorting accuracy.

[0047] 8. By providing an upwardly extending baffle on the long side of the second inclined plate close to each of the sixth rectangular through holes, the screw is prevented from slipping off. By providing a groove between the baffle and the second inclined plate, the groove can hold the head of the screw, so that the screw can slide more easily along the second inclined plate to each of the sixth rectangular through holes.

[0048] 9. By placing each storage box below the corresponding sixth rectangular through hole, screws of different lengths sorted by the length sorting mechanism are received and stored. A rectangular notch is provided on the upper end of the side wall of the storage box near the side opening of the cavity, making it easy to pull the storage box out from the side opening of the cavity and thus facilitating screw access.

[0049] 10. By setting H-shaped protrusions and H-shaped grooves for connection, a detachable connection can be achieved between the length sorting mechanism and the storage module.

[0050] 11. The stepped feeding module, diameter recognition track, shape sorting module, length sorting mechanism and storage module are all purely mechanical structures. Through the purely mechanical structure, the screw diameter, head shape and length can be sorted step by step, realizing "one machine for multiple uses", replacing the traditional multi-device serial sorting process and reducing the risk of secondary mixing. Attached Figure Description

[0051] Figure 1 A schematic diagram of the front overall structure of the modular multi-parameter screw sorting device provided in this embodiment of the utility model;

[0052] Figure 2 A schematic diagram of the overall rear structure of the modular multi-parameter screw sorting device provided in this embodiment of the utility model;

[0053] Figure 3 An exploded view of the stepped feeding module provided in an embodiment of this utility model;

[0054] Figure 4 A schematic diagram of the diameter recognition track and shape sorting module provided in an embodiment of this utility model from one angle;

[0055] Figure 5 This is a structural schematic diagram of the diameter recognition track and shape sorting module provided in an embodiment of the present invention from another angle;

[0056] Figure 6 A schematic diagram of the length sorting mechanism and storage module provided in the embodiments of this utility model.

[0057] Figures 1-6 Figure labels in the diagram:

[0058] 1. Stepped feeding module, 10. Feeding box, 100. First inclined plate, 101. Third rectangular through hole, 102. Second rectangular through hole, 103. Partition, 104. Gap between two track plates, 105. Seventh rectangular through hole, 11. Base box, 110. Rectangular recess, 12. Small step plate, 120. Straight slot hole, 13. Large step plate, 14. Slide plate, 15. Slide plate shaft, 16. Handle assembly, 160. Handle, 161. Handle shaft, 162. Handle lock block, 17. Crank, 170. Gear, 18. Connecting rod, 19. Connecting rod shaft, 2. Diameter recognition track, 20. First slide plate, 21. Second slide plate, 220. Solid curved surface protrusion, 221. Hollow curved surface protrusion, 3-shape sorting module, 30 disc cover, 300 first round hole, 301 fourth rectangular through hole, 302 fifth rectangular through hole, 303 inner slide, 304 outer slide, 305 second round hole, 306 herringbone diversion track, 307 third round hole, 31 disc, 310 cylindrical protrusion, 311 hexagonal protrusion, 312 inner disc, 313 outer disc, 32 disc gear, 320 hexagonal hole, 4-length sorting mechanism, 41 groove, 42 baffle, 43 sixth rectangular through hole, 5 storage module, 50 storage box, 51 box body, 510 H-shaped protrusion, 61 support leg, 62 support plate. Detailed Implementation

[0059] This invention provides a modular, multi-parameter screw sorting device capable of classifying screws by diameter, length, and head shape. This improves sorting efficiency, reduces error rates and labor intensity, and allows for quick module replacement, enhancing versatility and scalability. The structure and working principle are described in detail below with reference to the accompanying drawings and specific embodiments.

[0060] Figure 1 A schematic diagram of the front overall structure of the modular multi-parameter screw sorting device provided in this embodiment of the utility model; Figure 2 A schematic diagram of the overall rear structure of the modular multi-parameter screw sorting device provided in this embodiment of the utility model. See also... Figure 1 and Figure 2 The present invention provides a modular multi-parameter screw sorting device, including a stepped feeding module 1, a diameter recognition track 2, a shape sorting module 3, a length sorting mechanism 4, a storage module 5, and a support plate 62.

[0061] The stepped feeding module 1 is detachably connected to the diameter recognition track 2, and the diameter recognition track 2 is detachably connected to the shape sorting module 3. The length sorting mechanism 4 is located below the shape sorting module 3, and the storage module 5 is detachably connected to the lower part of the length sorting mechanism 4. The storage module 5 is also detachably connected to the support plate 62. The stepped feeding module 1 and the shape sorting module 3 are detachably mounted on top of the support plate 62 via support legs 61. Therefore, the modules are detachably connected, allowing for quick replacement of each module.

[0062] Specifically, the output end of the stepped feeding module 1 is connected to the input end of the diameter recognition track 2, the output end of the diameter recognition track 2 is connected to the input end of the shape sorting module 3, and the output end of the shape sorting module 3 is connected to the input end of the length sorting mechanism 4.

[0063] The stepped feeding module 1 is used to automatically add screws to the diameter recognition track 2;

[0064] The diameter identification track 2 is used to sort screws of different diameters and transport them to the shape sorting module 3;

[0065] The shape sorting module 3 is used to sort screws with different head shapes and transport them to the length sorting mechanism 4;

[0066] The length sorting mechanism 4 is used to sort screws of different lengths and transport them to the storage module 5 for storage.

[0067] In summary, this utility model embodiment provides a modular, purely mechanical, multi-parameter screw sorting device, including a stepped feeding module 1, a diameter recognition track 2, a shape sorting module 3, a length sorting mechanism 4, a storage module 5, and a support plate 62. The stepped feeding module 1 is detachably connected to the diameter recognition track 2, and the diameter recognition track 2 is detachably connected to the shape sorting module 3. The length sorting mechanism 4 is located below the shape sorting module 3, and the storage module 5 is detachably connected below the length sorting mechanism 4 and detachably connected to the support plate 62. The stepped feeding module 1 and the shape sorting module 3 are detachably mounted on top of the support plate 62 via support legs 61. The stepped feeding module 1 is used to automatically add screws to the diameter recognition track 2; the diameter recognition track 2 is used to sort screws of different diameters and convey them to the shape sorting module 3; the shape sorting module 3 is used to sort screws of different head shapes and convey them to the length sorting mechanism 4; the length sorting mechanism 4 is used to sort screws of different lengths and convey them to the storage module 5 for storage. Thus, by setting the diameter recognition track 2 to sort screws of different diameters, the shape sorting module 3 to sort screws of different head shapes, and the length sorting mechanism 4 to sort screws of different lengths, multi-parameter screening of diameter, head shape, and length can be achieved with a single device. The process is simple and occupies little space, eliminating the need for manual screening of screw diameter, length, and head shape one by one, improving sorting efficiency, reducing error rates and labor intensity. Furthermore, the modules are detachably connected, without a fixed structure, allowing for quick replacement of modules, improving versatility and scalability.

[0068] Furthermore, this device adopts a modular design, with each module connected in a detachable manner, allowing for disassembly, cleaning, or replacement of parts without the need for special tools, thus reducing maintenance complexity.

[0069] The following is a detailed introduction to each module:

[0070] Figure 3 An exploded view of the stepped feeding module provided in this embodiment of the present invention is shown below. Figure 3 The stepped feeding module 1 includes a feeding box 10, a bottom box 11, a small step plate 12, a large step plate 13, a slide plate 14, four slide plate shafts 15, a handle assembly 16, a crank 17, a connecting rod 18, and a connecting rod shaft 19.

[0071] In one implementation, viewed from above, the outline of the feeding box 10 is a combination of an isosceles trapezoid and a rectangle, as shown below. Figure 3As shown. Both the loading box 10 and the bottom box 11 are boxes without top lids. The inside of the loading box 10 is provided with a first inclined plate 100 that slopes to the other side. The first inclined plate 100 is used to receive the falling screws to be sorted, so that the screws fall and accumulate at the lower end of the first inclined plate.

[0072] Two parallel track plates are vertically arranged on the other side of the interior of the feeding box 10. One end of the two track plates is fixedly installed on the first side wall of the feeding box 10, and the other end of the two track plates is detachably connected to the diameter recognition track 2. The detachable connection can be achieved by a locking block and a locking slot. A gap 104 is provided between the two track plates to filter out screws with a size smaller than the gap 104 between the two track plates, thereby increasing expandability.

[0073] The top surfaces of the two track plates form a V-shape, meaning that the top surfaces of both track plates are inclined towards the middle to form a V-shape, which is used to guide the screws.

[0074] See also Figure 3 The lower end of the first inclined plate 100 is provided with a base plate extending to the bottom of the two track plates. The base plate is provided with a first rectangular through hole, a second rectangular through hole 102, and a third rectangular through hole 101 that are parallel to each other. The first rectangular through hole is located directly below the gap 104 between the two track plates. The second rectangular through hole 102 and the third rectangular through hole 101 are located between the first rectangular through hole and the first inclined plate 100, and the second rectangular through hole 102 is close to the track plate near the first inclined plate 100. The third rectangular through hole 102... 1. A partition 103 extending upwards is provided between the second rectangular through hole 102 and the third rectangular through hole 101, closely attached to the lower end of the first inclined plate 100. The height of the partition 103 is lower than the height of the two track plates. The top surface of the partition 103 is an inclined surface with the same inclination direction as the first inclined plate 100. A seventh rectangular through hole 105 is provided at the corresponding position of the gap 104 between the first sidewall and the two track plates. The distance between the second rectangular through hole 102 and the third rectangular through hole 101 is the same as the width of the partition 103. Figure 3 The position indicated by 102 is on the bottom plate further below; this diagram is for illustrative purposes only.

[0075] The bottom box 11 is located below the loading box 10 and is fixedly connected to the bottom plate. The second side wall of the bottom box 11, which is on the same side as the first side wall, is provided with a rectangular recess 110. The bottom box 11 is detachably connected to the shape sorting module 3. The bottom box 11 contains a small step plate 12, a large step plate 13, and a slide plate 14. The small step plate 12 and the large step plate 13 are both T-shaped plates. The top surfaces of the small step plate 12 and the large step plate 13 are inclined surfaces with the same inclination direction as the first inclined plate 100. The corresponding positions of the small step plate 12 and the large step plate 13 are provided with two obliquely parallel straight slot holes 120. The two sides of the slide plate 14 are respectively connected to the small step plate 12 and the large step plate 13 through two slide plate shafts 15, and the slide plate shafts 15 can move within the corresponding straight slot holes 120.

[0076] The large step plate 13 can move up and down through the second rectangular through hole 102, and the small step plate 12 can move up and down through the third rectangular through hole 101.

[0077] See also Figure 3 One end of the slide plate 14 is provided with a continuously bent screw guide rod. The screw guide rod passes through the rectangular recess 110 and the seventh rectangular through hole 105 in sequence and is placed between the top surfaces of the two track plates. The other end of the slide plate 14 is connected to the connecting rod 18 through the connecting rod shaft 19.

[0078] The screw guide rod includes a first bent rod, a second bent rod, and a third bent rod connected to each other, with the first bent rod and the third bent rod being parallel to each other. That is, the overall shape of the screw guide rod is similar to a U-shape. The first bent rod passes through the rectangular recess 110, and the third bent rod passes through the seventh rectangular through hole 105.

[0079] The crank 17 is cam-shaped. The two sides of the connecting rod 18 are fixedly connected to the handle assembly 16 and the small end of the crank 17, respectively. The large end of the crank 17 is detachably connected to the shape sorting module 3. The large end of the crank 17 is provided with a gear 170, which meshes with the disc gear 32 of the shape sorting module 3.

[0080] See also Figure 3 The handle assembly 16 includes a handle 160, a handle shaft 161, and a handle locking block 162.

[0081] One end of the handle 160 is provided with a handle shaft hole, and the other end is provided with a locking block hole. The handle shaft hole and the locking block hole are connected. The size of the locking block hole is larger than the size of the handle shaft hole. One end of the handle shaft 161 is located in the handle shaft hole, and the other end passes through the connecting rod 18 and is fixedly connected to the small end of the crank 17. The handle locking block 162 is located in the locking block hole.

[0082] Therefore, by setting one end of the handle 160 to have a handle shaft hole and the other end to have a locking block hole, with the handle shaft hole and the locking block hole communicating with each other, and the size of the locking block hole being larger than the size of the handle shaft hole, and the handle locking block 162 being disposed in the locking block hole, the handle locking block locks the handle, preventing the handle 160 from moving when it is shaken.

[0083] In use, the handle assembly 16 is cranked, the gear 170 meshes with the disc gear 32 and rotates, the crank 17 drives the connecting rod 18 to move, the connecting rod 18 drives the slide plate 14 to move, the slide plate 14 drives the small step plate 12 and the large step plate 13 to move up and down to deliver the screw to the top surface of the two track plates, the slide plate 14 drives the screw guide rod to move horizontally to deliver the screw located on the top surface of the two track plates to the diameter recognition track 2, when the large step plate 13 moves to the top, the top surface of the large step plate 13 and the top surface of the track plate near the first inclined plate 100 form a first inclined surface, when the small step plate 12 moves to the top, the top surface of the small step plate 12 and the top surface of the partition plate 103 form a second inclined surface, and the first inclined surface and the second inclined surface form a stepped structure.

[0084] Thus, by driving the handle assembly 16 and using the mechanical transmission method of "crank 17 + connecting rod 18 + gear transmission + slide plate 14 linkage", the screw is delivered to the diameter recognition track. No electricity is required, making it suitable for special environments such as explosion-proof workshops and areas with unstable power. This reduces equipment procurement and maintenance costs while avoiding the risk of downtime due to electronic component failure.

[0085] Figure 4 A schematic diagram of the diameter recognition track and shape sorting module provided in this embodiment of the present invention at one angle is shown below. Figure 4 As shown, the diameter recognition track 2 includes a first slide plate 20 and a second slide plate 21 that are vertically arranged and detachably connected to the shape sorting module 3. The detachable connection can be achieved by a card block engaging with a card slot.

[0086] Both the first slide plate 20 and the second slide plate 21 are detachably connected to the stepped feeding module 1. There is a gap between the first slide plate 20 and the second slide plate 21. The tops of the first slide plate 20 and the second slide plate 21 are both inclined surfaces, and a slide hole is formed between them. The slide hole includes a first slide hole located at the upper end of the inclined surface and a second slide hole located at the lower end of the inclined surface. The width of the first slide hole is smaller than the width of the second slide hole.

[0087] The first slide plate 20 has a solid curved protrusion 220 inside, which is located below the first slide hole. The second slide plate 21 has a hollow curved protrusion 221 protruding outward at a corresponding position inside, and the solid curved protrusion 220 is used to guide the screw.

[0088] The screws conveyed from the stepped feeding module 1 first pass through the first slide hole and then through the second slide hole. Since the width of the first slide hole is smaller than the width of the second slide hole, the small-diameter screws fall first, and the large-diameter screws fall then.

[0089] Therefore, by setting the tops of both the first slide plate 20 and the second slide plate 21 to be inclined surfaces and forming a slide hole between them, the slide hole includes a first slide hole located at the upper end of the inclined surface and a second slide hole located at the lower end of the inclined surface. The width of the first slide hole is smaller than the width of the second slide hole, so that small-diameter screws fall first, and then large-diameter screws fall, thereby filtering out screws of different diameters.

[0090] Figure 5 This is another structural schematic diagram of the diameter recognition track and shape sorting module provided in this embodiment of the present invention. (See also...) Figure 4 and Figure 5 The shape sorting module 3 also includes a disc cover 30 and a disc 31.

[0091] The upper end of the disc cover 30 is provided with a fourth rectangular through hole 301 at the position corresponding to the first slide hole and a fifth rectangular through hole 302 at the position corresponding to the second slide hole. A disc receiving cavity is provided on one side of the disc cover 30. The disc 31 is disposed in the disc receiving cavity. A cylindrical protrusion 310 is provided at the center of the side of the disc 31. A hexagonal protrusion 311 is provided on the outer side of the cylindrical protrusion 310. The cylindrical protrusion 310 passes through the first circular hole 300 of the disc cover 30. The hexagonal protrusion 311 is fixedly connected to the hexagonal hole 320 of the disc gear 32. The fourth rectangular through hole 301 and the fifth rectangular through hole 302 are both connected to the disc receiving cavity.

[0092] The disc 31 is divided into an inner disc 312 and an outer disc 313 by a central circular plate. The inner disc 312 and the outer disc 313 have multiple outwardly opening compartments evenly distributed along their circumference. The compartments of the inner disc 312 are located below the fifth rectangular through hole 302, and the compartments of the outer disc 313 are located below the fourth rectangular through hole 301. The sidewall of the disc receiving cavity is divided into an inner slide rail 303 and an outer slide rail 304 by a central protrusion. The outer periphery of the inner disc 312 is opposite to the inner slide rail 303, and the outer periphery of the outer disc 313 is opposite to the outer slide rail 304, which can limit the screws in the compartments.

[0093] The inner slide 303 and the outer slide 304 are respectively provided with a second circular hole 305 and a third circular hole 307 below them, and the size of the second circular hole 305 is larger than the size of the third circular hole 307.

[0094] Below the disc receiving cavity, two herringbone-shaped diversion tracks 306 are connected side by side. Each herringbone-shaped diversion track 306 has two sub-tracks. The second circular hole 305 and the third circular hole 307 are respectively connected to the two sub-tracks on the same side of the two herringbone-shaped diversion tracks.

[0095] In use, the screw in the first slide hole falls into the compartment of the outer plate 313 through the fourth rectangular through hole 301, and the screw in the second slide hole falls into the compartment of the inner plate 312 through the fifth rectangular through hole 302. The disc gear 32 drives the disc 31 to rotate. The compartments of the outer plate 313 and the inner plate 312 respectively convey screws to the length sorting mechanism 4 through the outlets of the four sub-tracks of the two herringbone diversion tracks 306.

[0096] Since the size of the second circular hole 305 is larger than the size of the third circular hole 307, large screws with round heads flow to the length sorting mechanism 4 through the second circular hole 305 and the lower sub-track, while large screws with hexagonal heads flow to the length sorting mechanism 4 through the other sub-track. Similarly, small screws with round heads flow to the length sorting mechanism 4 through the third circular hole 307 and the lower sub-track, while small screws with hexagonal heads flow to the length sorting mechanism 4 through the other sub-track.

[0097] Thus, the shape sorting module 3 achieves mechanical sorting of screws with different head shapes, such as hexagonal heads and round heads, through the cooperation between the fourth rectangular through hole 301 of the disc cover 30 and the partition of the outer disc 313, the limiting function of the outer slide rail 304, the cooperation between the fifth rectangular through hole 302 and the partition of the inner disc 312, and the limiting function of the inner slide rail 303.

[0098] Figure 6 A schematic diagram of the length sorting mechanism and storage module provided in the embodiments of this utility model is shown below. Figure 6 As shown, the length sorting mechanism 4 includes four second inclined plates.

[0099] The second inclined plate has multiple sixth rectangular through holes 43 with parallel long sides that increase in length sequentially from top to bottom. Each sixth rectangular through hole 43 has a short side on the same straight line, and the distance between each short side and one long side of the second inclined plate is less than a preset distance. A spacing is provided between the upper surface of the second inclined plate and the uppermost sixth rectangular through hole. Figure 6As shown. Multiple sixth rectangular through holes 43 are used to classify screws of different lengths, distinguishing screws located in different length ranges.

[0100] The exits of the four sub-tracks are respectively aligned with the positions of the four second inclined plates with spacing, so that the length sorting mechanism 4 can receive the screws coming out of the shape sorting module 3. The storage module is located below the sixth rectangular through hole of the four second inclined plates.

[0101] Therefore, the length sorting mechanism 4 adopts a design with a sixth rectangular through hole 43 whose length increases sequentially. The length range is classified by the physical contact between the screw and each sixth rectangular through hole 43, which further improves the sorting accuracy.

[0102] See also Figure 6 The second inclined plate is provided with an upwardly extending baffle 42 on the long side close to each of the sixth rectangular through holes 43, and a groove 41 is provided between the baffle 42 and the second inclined plate.

[0103] Therefore, by providing an upwardly extending baffle 42 on the long side of the second inclined plate close to each of the sixth rectangular through holes 43, the screw is prevented from slipping off. By providing a groove 41 between the baffle 42 and the second inclined plate, the groove 41 can hold the head of the screw, so that the screw can slide more easily along the second inclined plate to each of the sixth rectangular through holes 43.

[0104] See also Figure 6 The storage module 5 includes four storage boxes that are detachably connected to four second inclined plates, and each storage box includes multiple storage boxes 50 and a box body 51.

[0105] The box body 51 has multiple cavities inside, the same number as the storage boxes 50. Each cavity has an opening on its top and one side. The storage boxes 50 are placed in the cavity and can be pulled out from the side opening of the cavity. The upper end of the side wall of the storage box 50 near the side opening of the cavity has a rectangular notch. The number of storage boxes 50 is the same as the number of sixth rectangular through holes 43 included in the corresponding second inclined plate. The storage boxes 50 are lidless rectangular boxes, and each storage box 50 is located below the corresponding sixth rectangular through hole 43.

[0106] Therefore, by placing each storage box 50 below the corresponding sixth rectangular through hole 43, screws of different lengths sorted by the length sorting mechanism 4 are received and stored. By providing a rectangular notch on the upper end of the side wall of the storage box 50 near the side opening of the cavity, it is convenient to pull the storage box 50 out from the side opening of the cavity, making it easier to retrieve the screws.

[0107] See also Figure 6The top of the box body 51 is provided with an H-shaped protrusion 510, and the bottom of the second inclined plate located above the box body 51 is provided with an H-shaped groove. The H-shaped protrusion 510 is connected to the H-shaped groove.

[0108] Therefore, by setting the H-shaped protrusion 510 to connect with the H-shaped groove, the length sorting mechanism 4 and the storage module 5 can be detachably connected.

[0109] The support plate 62 has a through hole with the same shape as the storage module 5. The bottom of the storage module 5 is placed in the through hole of the support plate 62 to achieve a detachable connection with the support plate 62, thus preventing the storage module 5 from moving.

[0110] In summary, the stepped feeding module 1, diameter recognition track 2, shape sorting module 3, length sorting mechanism 4, and storage module 5 are all purely mechanical structures. Through these purely mechanical structures, the screws can be sorted step by step according to their diameter, head shape, and length, achieving "one machine for multiple uses" and replacing the traditional multi-device serial sorting process, thus reducing the risk of secondary mixing.

[0111] The stepped feeding module uses a handle-driven mechanical linkage structure to organize and guide the screws using a sliding plate and stepped structure, ensuring orderly output. The diameter recognition track uses a trapezoidal track design to screen screws of different diameters. The shape sorting module distinguishes head shapes using a disc, inner slide, and outer slide, while the length sorting mechanism uses a slanted plate structure to classify lengths. The device relies entirely on mechanical structures, requiring no electricity. It achieves precise sorting through three levels of physical screening: diameter, shape, and length. It features low cost, high reliability, and strong environmental adaptability, making it suitable for fastener sorting needs in small and medium-sized enterprises and explosion-proof environments.

[0112] For ease of understanding, the working process of a modular multi-parameter screw sorting device provided in this embodiment of the present invention is described below:

[0113] Screws to be sorted are placed in the loading box 10. Then, the handle 160 is cranked, which drives the connecting rod 18 to move. The connecting rod 18 drives the slide plate 14 to move, and the slide plate shaft 15 moves in the straight slot hole 120. At the same time, it drives the small step plate 12 and the large step plate 13 to move up and down. Under the vertical movement of the small step plate 12 and the large step plate 13, the screws are sent between the top surfaces of the two track plates. Then, the screws are guided and enter the diameter identification track 2 under the movement of the screw guide rod of the slide plate 14. The screws with smaller diameters first detach from the first slide plate 20 and fall down. Then, under the guidance of the solid curved surface protrusion 220, they enter the outer slide 304 of the disc 31. The screws with larger diameters detach from the second slide plate 21 and enter the inner slide 303 of the disc 31. The disc gear 32 is driven by the crank 160. Driven by 7, the disc gear 32 drives the disc 31, which in turn drives the screws in the disc compartment to rotate. The bottom surfaces of the screws contact the inner slide of 303 and the outer slide of 304 respectively. When the screws reach the second circular hole 305 and the third circular hole 307, the round-headed screws enter one side of the herringbone diversion track 306 from the second circular hole 305 and the third circular hole 307 respectively. The hexagonal head screws continue to rotate and finally fall into the other side of the herringbone diversion track 306. The screws directly enter the length sorting mechanism 4 from the herringbone diversion track 306. Screws of different lengths fall from the sixth rectangular through hole 43 of different length ranges and finally fall into the storage box 50. This completes the entire screw sorting process, realizing triple sorting of screw diameter, head shape and length.

[0114] When more screws of different specifications need to be sorted, new diameter recognition rails and shape sorting modules can be added below the feed box 10 to meet the classification of more screws of different specifications.

[0115] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A modular multi-parameter screw sorting device, characterized in that, It includes a stepped feeding module, a diameter recognition track, a shape sorting module, a length sorting mechanism, a storage module, and a support plate; The stepped feeding module is detachably connected to the diameter recognition track, the diameter recognition track is detachably connected to the shape sorting module, the length sorting mechanism is located below the shape sorting module, the storage module is detachably connected to the length sorting mechanism below, the storage module is detachably connected to the support plate, and the stepped feeding module and the shape sorting module are detachably mounted on the support plate above each other via support legs. The stepped feeding module is used to automatically add screws to the diameter recognition track; The diameter recognition track is used to sort screws of different diameters and transport them to the shape sorting module; The shape sorting module is used to sort screws with different head shapes and convey them to the length sorting mechanism; The length sorting mechanism is used to sort screws of different lengths and transport them to the storage module for storage.

2. The modular multi-parameter screw sorting device according to claim 1, characterized in that, The stepped feeding module includes a feeding box, a bottom box, a small stepped plate, a large stepped plate, a sliding plate, four sliding plate axles, a handle assembly, a crank, a connecting rod, and a connecting rod axle; Both the loading box and the bottom box are open-top boxes. The loading box has a first inclined plate on one side inside, which is used to receive the falling screws to be sorted. The loading box has two parallel track plates vertically on the other side inside. One end of the two track plates is fixedly installed on the first side wall of the loading box, and the other end of the two track plates is detachably connected to the diameter recognition track. There is a gap between the two track plates, and the top surfaces of the two track plates form a V-shape. The lower end of the first inclined plate is provided with a base plate extending to the bottom of the two track plates. The base plate is provided with a first rectangular through hole, a second rectangular through hole and a third rectangular through hole that are parallel to each other. The first rectangular through hole is located directly below the gap between the two track plates. The second rectangular through hole and the third rectangular through hole are located between the first rectangular through hole and the first inclined plate. The second rectangular through hole is close to the track plate near the first inclined plate. The third rectangular through hole is close to the lower end of the first inclined plate. An upwardly extending partition is provided between the second rectangular through hole and the third rectangular through hole. The height of the partition is lower than the height of the two track plates. The top surface of the partition is an inclined surface with the same inclination direction as the first inclined plate. A seventh rectangular through hole is provided at the position corresponding to the gap between the first sidewall and the two track plates. The bottom box is located below the loading box and is fixedly connected to the bottom plate. The second side wall of the bottom box, which is on the same side as the first side wall, has a rectangular recess. The bottom box is detachably connected to the shape sorting module. The bottom box contains the small step plate, the large step plate, and the slide plate. The small step plate and the large step plate are both T-shaped plates. The top surfaces of the small step plate and the large step plate are inclined surfaces with the same inclination direction as the first inclined plate. The small step plate and the large step plate have two obliquely parallel straight slot holes at corresponding positions. The two sides of the slide plate are connected to the small step plate and the large step plate respectively through two slide plate shafts. The slide plate shafts can move in the corresponding straight slot holes. The large step plate can move up and down through the second rectangular through hole. The small step plate can move up and down through the third rectangular through hole. One end of the slide plate is provided with a continuously bent screw guide rod, which passes through the rectangular recess and the seventh rectangular through hole in sequence and is placed between the top surfaces of the two track plates. The other end of the slide plate is connected to the connecting rod through the connecting rod shaft. The crank is cam-shaped. The two sides of the connecting rod are respectively fixedly connected to the handle assembly and the small end of the crank. The large end of the crank is detachably connected to the shape sorting module. The large end of the crank is provided with a gear, which meshes with the disc gear of the shape sorting module. When the handle assembly is cranked, the gear meshes with the disc gear and rotates. The crank drives the connecting rod to move, and the connecting rod drives the slide plate to move. The slide plate drives the small step plate and the large step plate to move up and down, conveying the screw to the top surface of the two track plates. The slide plate drives the screw guide rod to move horizontally, conveying the screw located on the top surface of the two track plates to the diameter recognition track. When the large step plate moves to the top, the top surface of the large step plate and the top surface of the track plate near the first inclined plate form a first inclined surface. When the small step plate moves to the top, the top surface of the small step plate and the top surface of the partition plate form a second inclined surface. The first inclined surface and the second inclined surface form a stepped structure.

3. The modular multi-parameter screw sorting device according to claim 2, characterized in that, The screw guide rod includes a first bent rod, a second bent rod, and a third bent rod that are connected to each other. The first bent rod and the third bent rod are parallel to each other. The first bent rod passes through the rectangular recess, and the third bent rod passes through the seventh rectangular through hole.

4. A modular multi-parameter screw sorting device according to claim 2, characterized in that, The handle assembly includes a handle, a handle shaft, and a handle locking block; One end of the handle is provided with a handle shaft hole, and the other end is provided with a locking block hole. The handle shaft hole and the locking block hole are connected. The size of the locking block hole is larger than the size of the handle shaft hole. One end of the handle shaft is located in the handle shaft hole, and the other end passes through the connecting rod and is fixedly connected to the small end of the crank. The handle locking block is located in the locking block hole.

5. A modular multi-parameter screw sorting device according to claim 2, characterized in that, The diameter recognition track includes a first slide plate and a second slide plate that are vertically arranged and detachably connected to the top of the shape sorting module; Both the first slide plate and the second slide plate are detachably connected to the stepped feeding module. There is a gap between the first slide plate and the second slide plate. The top of both the first slide plate and the second slide plate is inclined and a slide hole is formed between them. The slide hole includes a first slide hole located at the upper end of the inclined surface and a second slide hole located at the lower end of the inclined surface. The width of the first slide hole is smaller than the width of the second slide hole. The first slide plate has a solid curved protrusion inside, which is located below the first slide hole. The second slide plate has a hollow curved protrusion protruding outward at a corresponding position inside.

6. A modular multi-parameter screw sorting device according to claim 5, characterized in that, The shape sorting module also includes a disc cover and a disc; The upper end of the disc cover is provided with a fourth rectangular through hole at the position corresponding to the first slide hole and a fifth rectangular through hole at the position corresponding to the second slide hole. A disc receiving cavity is provided on one side of the disc cover. The disc is disposed in the disc receiving cavity, and a cylindrical protrusion is provided at the center of the side of the disc. A hexagonal protrusion is provided on the outer side of the cylindrical protrusion. The cylindrical protrusion passes through the first circular hole of the disc cover. The hexagonal protrusion is fixedly connected to the hexagonal hole of the disc gear. The fourth rectangular through hole and the fifth rectangular through hole are both connected to the disc receiving cavity. The disk is divided into an inner disk and an outer disk by a central circular plate. The inner disk and the outer disk have multiple outwardly opening compartments evenly distributed along their circumference. The compartments of the inner disk are located below the fifth rectangular through hole, and the compartments of the outer disk are located below the fourth rectangular through hole. The sidewall of the disk receiving cavity is divided into an inner slide and an outer slide by a central protrusion. The outer periphery of the inner disk is opposite to the inner slide, and the outer periphery of the outer disk is opposite to the outer slide. A second circular hole and a third circular hole are respectively provided directly below the inner slide and the outer slide, and the size of the second circular hole is larger than the size of the third circular hole. Below the disc receiving cavity, two herringbone-shaped diversion tracks are connected side by side. Each herringbone-shaped diversion track has two sub-tracks. The second and third circular holes are respectively connected to the two sub-tracks on the same side of the two herringbone-shaped diversion tracks. Screws are conveyed to the length sorting mechanism through the outlets of the four sub-tracks of the two herringbone-shaped diversion tracks.

7. A modular multi-parameter screw sorting device according to claim 6, characterized in that, The length sorting mechanism includes four second inclined plates; The second inclined plate has a plurality of sixth rectangular through holes with parallel long sides and increasing lengths of the long sides from top to bottom. Each sixth rectangular through hole has a short side on the same straight line and the distance between each short side and one long side of the second inclined plate is less than a preset distance. There is a gap between the upper end face of the second inclined plate and the uppermost sixth rectangular through hole. The exits of the four sub-tracks are respectively aligned with the positions of the four second inclined plates with spacing, and the storage module is located below the sixth rectangular through hole of the four second inclined plates.

8. A modular multi-parameter screw sorting device according to claim 7, characterized in that, The second inclined plate has an upwardly extending baffle on the long side close to each of the sixth rectangular through holes, and a groove is provided between the baffle and the second inclined plate.

9. A modular multi-parameter screw sorting device according to claim 7, characterized in that, The storage module includes four storage boxes that are detachably connected to four second inclined plates, and each storage box includes multiple storage compartments and a box body; The box body has multiple cavities, the same number as the storage boxes, inside. Each cavity has an opening on its top and one side. The storage boxes are placed in the cavities and can be pulled out from the side openings of the cavities. Each storage box has a rectangular notch on the upper side wall near the side opening of the cavity. The number of storage boxes is the same as the number of sixth rectangular through holes in the corresponding second inclined plate. Each storage box is a lidless rectangular box, and each storage box is located below the corresponding sixth rectangular through hole.

10. A modular multi-parameter screw sorting device according to claim 9, characterized in that, The top of the box body is provided with an H-shaped protrusion, and the bottom of the second inclined plate located above the box body is provided with an H-shaped groove, and the H-shaped protrusion is connected to the H-shaped groove.

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