Rod-shaped fastener sorter and sorting method thereof
By combining vertical channels and sorting chutes, a sorting method was adopted to achieve multi-specification screening of fasteners, solving the problems of poor adaptability and high maintenance costs in existing technologies, and improving classification accuracy and sorting efficiency.
Patent Information
- Application Number
- CN202511990607.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-02-27
AI Technical Summary
Existing fastener sorters are poorly adaptable to handling fasteners of different specifications, cumbersome to adjust, noisy, and have high maintenance costs, and are difficult to meet the sorting needs of fasteners of various specifications.
The sorting method combines vertical channels and sorting chutes. Initial sorting is performed through the head channel, the axial direction is changed by the fastener adjustment mechanism, and then the sorting is performed again through the drop port on the top of the inclined storage body, so as to achieve multi-specification screening.
It improves classification accuracy and sorting efficiency, reduces equipment complexity and maintenance costs, adapts to the sorting needs of fasteners with multiple radii and lengths, and has no electronic components, resulting in high operational stability.
Smart Images
Figure CN121571380A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the field of mechanical processing, and particularly relates to a rod-shaped fastener sorting device and a sorting method thereof. BACKGROUND
[0002] Generally based on mechanical transmission principle, gears, cams, conveyer belts and other mechanical components are used for collaborative work. The fastener first enters the distribution mechanism through the hopper, and is preliminarily stacked by gravity. Then the distribution mechanism distinguishes fasteners of different sizes and shapes by mechanical force driven vibration, swinging or rotating action. The fastener is made to be correctly oriented by using guide grooves, slopes or magnetic force, and finally is transported to the designated working position by conveyer belts, vibration plates or rollers.
[0003] The adaptability to fastener specification changes is poor. When different specifications of fasteners need to be sorted, the adjustment process is cumbersome, often requiring manual replacement of some mechanical parts or complex parameter settings, which is difficult to quickly meet production needs.
[0004] Due to the main mechanical transmission principle, long-time operation will produce a lot of noise, and mechanical parts are prone to wear and tear, requiring regular maintenance and replacement, which not only increases maintenance costs, but also may affect the continuity of production.
[0005] When dealing with different types and specifications of fasteners, different camera modules or camera parameter adjustments are often required, which increases the complexity and difficulty of operation of the equipment, and requires higher technical requirements for the operator.
[0006] Some existing intelligent fastener sorting devices usually have only one discharge port for the discharge module, which limits the sorting capacity of the equipment and cannot meet the sorting needs of more types of fasteners. For scenarios that require sorting of multiple specifications of fasteners at the same time, the efficiency will be greatly affected. SUMMARY
[0007] In view of the deficiencies of the prior art, the present application provides a rod-shaped fastener sorting device and a sorting method thereof, aiming to improve the accuracy of classification; and to adapt to multiple radii and corresponding different length screws, to meet the multi-specification screening needs.
[0009] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The application discloses a rod-shaped fastener sorting device, which comprises a plurality of sorting bodies, each two adjacent sorting bodies are detachably connected in the vertical direction, each sorting body is provided with a sorting chamber, all the sorting chambers are connected with a vertical channel, the vertical channel is arranged downward in the vertical direction, the rod-shaped fastener is arranged in the vertical channel in the axial direction, the rod-shaped fastener is adjusted and classified according to the head of the rod-shaped fastener, the outer side wall of each sorting body is detachably connected with a storage body, the upper surface of each storage body is provided with an inclined outer top of the storage body, the sorting chamber is provided with a sorting slide, the sorting slide is arranged in a spiral downward manner, the sorting chamber and the outer top of the storage body are connected with a fastener adjusting mechanism, which is used for adjusting the rod-shaped fastener from the axial direction to the horizontal direction, one end of the sorting slide extends out of the sorting chamber and is connected with the outer top of the storage body, the rod-shaped fastener is horizontally rolled to the outer top of the storage body through the connection, the outer top of the storage body is provided with a plurality of material falling holes which are adjusted according to the length of the rod-shaped fastener, the inner part of the storage body is provided with a storage chamber which is connected with each material falling hole, the rod-shaped fastener is rolled in the outer top of the storage body, and the rod-shaped fastener is classified again by entering the storage chamber through the matched material falling hole.
[0010] Preferably, the vertical channel is provided with a plurality of vertical sub-channels which are connected in sequence in the vertical direction. The upper end of each vertical sub-channel is provided with a head channel corresponding to the head of the rod-shaped fastener and a vertical sub-channel part, the head channel is connected with the adjacent vertical sub-channel part and forms a vertical sub-channel, and the side wall of the vertical sub-channel is connected with the sorting slide; the sizes of the plurality of head channels are sequentially reduced in the vertical direction.
[0011] Preferably, the sorting slide is two spiral downward sorting slides, the two sorting slides are provided in the sorting chamber, and one end of each sorting slide extends out of the sorting chamber.
[0012] Preferably, a flow passage is formed in the side wall of the entity where the sorting slide of the sorting body extends out, and the sorting slide and the outer top of the storage body are connected through the flow passage.
[0013] Preferably, the direction from the sorting slide, the flow passage to the outer top of the storage body is the activity direction of the rod-shaped fastener, the direction perpendicular to the activity direction of the rod-shaped fastener is the length direction, and the length direction is consistent with the length direction of the rod-shaped fastener. The outer top of the storage body is arranged in a downward inclined manner in the activity direction of the rod-shaped fastener. The plurality of the material feeding ports are arranged in sequence along the moving direction of the rod-shaped fastener, and each of the material feeding ports extends along the length direction, and the length of the plurality of the material feeding ports increases in sequence along the moving direction of the rod-shaped fastener.
[0014] Preferably, the fastener adjusting mechanism is a rod-shaped adjusting member and a lifting member, both of which are detachably inserted into the sorting slide, and one end of the rod-shaped adjusting member extends along the moving direction of the rod-shaped fastener; one end of the lifting member extends along the length direction, and the rod-shaped fastener is limited by the two sorting slides, so that even if the rod-shaped fastener is suspended below, the screw body of the rod-shaped fastener is deflected towards the length direction by the driving member using the two slides as fulcrums, and finally matches the shape of the flow-through port. The flow-through port extends along the length direction, and the rod-shaped fastener in the horizontal state enters the top of the storage body outside through the flow-through port by the pushing of the end of the rod-shaped adjusting member.
[0015] Preferably, the top of the storage body has a rod-shaped fastener head slide, which extends along the moving direction of the rod-shaped fastener, and is located near the end of all the plurality of material feeding ports.
[0016] Preferably, the sorter further comprises an upper cover, which is detachably installed on the topmost sorting body, and the upper cover has a material discharging port, which is in communication with the vertical channel on the topmost sorting chamber; the diameter of the material discharging port matches the size of the head of the rod-shaped fastener, so that the rod-shaped fastener is placed in the material discharging port along its axial direction, and its axial direction is kept downward on the sorting slide.
[0017] Preferably, the rod-shaped fastener is one of a screw, a bolt or a screw.
[0018] A rod-shaped fastener sorting method is provided, which is completed by using the above-mentioned sorter, and comprises the following steps: S1. A rod-shaped fastener is vertically placed and inserted into the material discharging port of the upper cover, the rod-shaped fastener enters the vertical channel, the head of the rod-shaped fastener is clamped in the corresponding head channel, and then the rod-shaped fastener slides along the downward spiral sorting slide to the end of the sorting slide outside the sorting chamber under the gravity of the rod-shaped fastener, and at this time the axial direction of the rod-shaped fastener is downward. S2. The direction of the rod-shaped fastener is adjusted by the rod-shaped adjusting member, so that the axial direction of the rod-shaped fastener is changed from downward to horizontal, and then the rod-shaped fastener rolls to the top of the storage body outside through the flow-through port, and the head of the rod-shaped fastener is located in the rod-shaped fastener head slide; since the surface where the top of the storage body is located is an inclined surface, the rod-shaped fastener slides along the inclined surface, and then enters the corresponding storage chamber through the material feeding port according to the length of the rod-shaped fastener.
[0019] Preferably, in step S1, since the head channel is set according to the thickness of the head of the rod-shaped fastener, when the head of the rod-shaped fastener is thick, it is clamped on the head channel with a large diameter, and when the head of the rod-shaped fastener is thin, it flows downward through the head channel with a large diameter and the vertical partition channel, until it is clamped by the head channel with a small diameter.
[0020] Preferably, in step S1, when the rod-shaped fastener slides to the end of the sorting slide, at this time, it is located outside the sorting chamber, and since the rod-shaped fastener is limited by two slides, even if the rod-shaped fastener is suspended below, when the bottom end of the screw is turned upward by the driving member, the screw is limited by two sorting slides, even if the screw is suspended below, the screw body is deflected in the length direction by the driving member moving in the length direction, using two slides as fulcrums, finally matches the shape of the flow-through opening, and then rolls through the adjusting pin, the end of the adjusting pin is pushed to make the screw roll, and finally the screw falls through the flow-through opening to the top of the storage body outside.
[0021] Preferably, in step S2, the head of the rod-shaped fastener enters the rod-shaped fastener head slide, and the fastener body of the rod-shaped fastener is located on the top of the storage body outside, and since the face where the top of the storage body is located is inclined downward along the movement direction of the screw, in this way, the rod-shaped fastener enters the storage chamber through the drop opening in the following way: S2.1. When the rod-shaped fastener moves to the inclined surface, the inclined surface cannot provide support force to the rod-shaped fastener, that is, N =0, and since there is no contact, the friction force f=0 also disappears; at this time, the rod-shaped fastener is only subject to the gravitational force G, which is vertically downward; according to Newton's second law F=ma, the rod-shaped fastener generates a vertically downward acceleration, and no longer moves along the inclined surface, but directly falls through the drop opening into the storage chamber.
[0022] Compared with the prior art, the beneficial effects of the present application are: 1. Since the thickness of the head channel in the vertical channel is mainly used in the present application to classify the rod-shaped fastener for the first time, and then the fastener adjusting mechanism is used to convert the axial direction of the rod-shaped fastener in the sorting slide from downward to horizontal, and then the rod-shaped fastener enters the top of the storage body outside through the flow-through opening, and then the rod-shaped fastener is classified again through the different drop openings of the top of the storage body outside which are set according to the length of the rod-shaped fastener, the combination of the two classification methods improves the accuracy of classification; and it is suitable for multiple radii and corresponding different length screws, and meets the demand of multiple specifications screening.
[0023] 2. Because the feeding port, vertical channel and sub-slide in the application serve as the conveying carrier, the structural compactness and safety are taken into account; the gap spacing on the sub-slide matches the screw radius, that is, less than the screw head part but greater than the screw body part, the multi-stage feeding port adapts to the classification mode of screw length, and the sorting accuracy is improved.
[0024] 3. Because the components in the application are mainly connected through the clamping groove and bolts, the assembly and disassembly are convenient; in addition, there is no electronic element in the application, so the overall cost is low and the maintenance is simple, and the sorting is completed by relying on gravity, the energy consumption is zero, there is no material leakage and jam in the sorting process, the operation is smooth, the labor intervention cost is reduced, the running stability is high, the output screw specifications are uniform and arranged in order, which is convenient for subsequent assembly and material management; it is suitable for competition, teaching or simulation training scenes. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 is the structural schematic diagram of the application in the embodiment; Figure 2 is the structural sectional view of the application without placing different screws; Figure 3 is the structural sectional view of the application when placing different screws; Figure 4 is the structural schematic diagram of the M5 sorting cylinder, sub-slide and storage body in the embodiment of the application; Figure 5 is the state schematic diagram of the screw on the top of the storage body of the application; Figure 6 is the force analysis schematic diagram of the screw on the top of the storage body of the application; Figure 7 is the position schematic diagram of the second clamping block in the application; Figure 8a is the sorting process of the screw in the application, wherein Figure 8a is the schematic diagram of the movement state of the screw in the feeding channel, wherein the arrow indicates the movement direction; Figure 8b is the schematic diagram of the state of the screw entering the head channel and the vertical sub-channel in a vertical manner, wherein the arrow indicates the movement direction; Figure 8c is the schematic diagram of the state of the screw sliding in the sub-slide; Figure 8d is the schematic diagram of the state of the screw sliding to the sub-slide at the outer end of the sorting cylinder; Figure 8e is the schematic diagram of the state of the screw when adjusted by the lifting piece; Figure 8f is the schematic diagram of the state of the screw after being lifted by the lifting piece; Figure 8g is the schematic diagram of the state of the screw at the flow-through port; Figure 8h is the schematic diagram of the state of the screw entering the top outside of the storage body; Figure 8i is the schematic diagram of the state of the screw entering the storage chamber through the feeding port.
[0026] In the figure: sorting cylinder 1, M3 sorting cylinder 101, M4 sorting cylinder 102; M5 sorting cylinder 103; sorting chamber 2, vertical channel 3, M3 head channel 31, M4 head channel 32, M5 head channel 33, storage body 4, outer top of storage body 5, sorting chute 6, flow port 7, material falling port 8, screw head chute 9, storage chamber 10, upper cover 11, material falling port 12, adjusting pin 13, drawer 14, material falling channel 15, driving member 16, shell 17, first clamping block 18, second clamping block 19. DETAILED DESCRIPTION
[0027] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the technical solutions of the present application are specifically described below in conjunction with the drawings. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application.
[0028] There are many rod-shaped fasteners in this embodiment, and the following mainly takes M3, M4 and M5 screws as examples: As shown in Figure 1 -8 (i), a rod-shaped fastener sorting device, specifically a screw sorting device, which comprises a plurality of sorting bodies (hereinafter referred to as sorting cylinders 1, i.e. M3 sorting cylinder 101, M4 sorting cylinder 102; M5 sorting cylinder 103), every two adjacent sorting cylinders 1 are detachably connected in the vertical direction (mainly bolted), i.e. M3 sorting cylinder 101 is bolted to M4 sorting cylinder 102; M4 sorting cylinder 102 is bolted to M5 sorting cylinder 103; and each sorting cylinder 1 has a sorting chamber 2 therein, all the sorting chambers 2 are commonly connected with a vertical channel 3, the vertical channel is arranged in the vertical direction downward, and the screws enter the vertical channel in the axial direction downward, and its size is adjusted according to the head of the rod-shaped fastener to make the first classification according to the head of the rod-shaped fastener, specifically: in this embodiment, the vertical channel 3 has three vertical sub-channels, and the three vertical sub-channels are connected in the vertical direction in turn; and the upper end of each vertical sub-channel has a head channel (hereinafter for the sake of distinction, the head channel is referred to as M3 head channel 31, M4 head channel 32 and M5 head channel 33) corresponding to the head of M3, M4 and M5 screws and a vertical sub-channel part, each head channel is connected with its adjacent vertical sub-channel part and connected into a vertical sub-channel, and the side wall of the vertical sub-channel is connected with a sorting chute; and the size of the plurality of head channels decreases in the vertical direction in turn (i.e. as shown in Figure 2 and 3 M5 screws, M4 screws and M3 screws are arranged in the vertical downward direction); the purpose is that the screws can be clamped between the head channel and the vertical sub-channel part according to the head size; specifically, as shown in Figure 2The head part of the screw is inclined between the head part channel and the vertical partition channel part; The outer side wall of each sorting cylinder 1 is detachably connected with a storage body 4 (as shown in Figure 4 、 5 The storage body 4 has a first clamping block 18, and the outer wall of the sorting cylinder 1 has a first clamping groove. The first clamping block 18 is clamped in the first clamping groove to fix the storage body 4 on the sorting cylinder 1. The upper surface of each storage body 4 has an inclined outer top 5 of the storage body. The sorting chamber 2 has a sorting slide. The sorting slide is spirally downward (in order to avoid the screw from falling when sliding on the sorting slide, the edge of the entity where the sorting slide is located is higher than the height of the sorting slide). One end of the sorting slide extends out of the sorting chamber and communicates with the outer top 5 of the storage body. Specifically, the sorting slide is two spirally downward sub-slides. The two sub-slides have a gap therebetween. The gap is adjusted according to the head part of the screw. The gap between the two sub-slides 6 where the M3 screw is located, the gap between the two sub-slides 6 where the M4 screw is located, and the gap between the two sub-slides 6 where the M5 screw is located are different. The two sub-slides 6 are arranged in the sorting chamber 2. One end of each sub-slide 6 extends out of the sorting chamber 2.
[0029] The fastener adjusting mechanism is arranged at the connection between the sorting chamber 2 and the top 5 of the storage body, and is used for adjusting the rod-shaped fastener from the axial direction downward (ideally, in the vertical state) to the horizontal state. Specifically, the fastener adjusting mechanism is a rod-shaped adjusting member (in this embodiment, an adjusting pin 13) and a driving member 16. The driving member 16 and the adjusting pin 13 are detachably inserted into the sorting chute. One end of the adjusting pin 13 extends along the screw movement direction A. One end of the driving member 16 extends along the length direction B. The driving member 16 first flips the bottom end of the screw upward (as shown by the yellow vertical arrow in FIG. 8 (e)), and then the adjusting pin 13 converts the lifted screw from the axial direction downward (ideally, in the vertical state) to the horizontal state, that is, converts the screw from the end downward to the horizontal end. More specifically, the driving member 16 is installed in a housing 17. The housing 17 is detachably installed at the bottom of the storage body 4 (specifically, the housing 17 is slidably connected to the storage body 4, that is, one side of the housing 17 is provided with a clamping groove, and the side wall of the storage body 4 is provided with a second clamping block matched with the clamping groove. The second clamping block and the clamping groove are slidably connected to fix the housing 17 and the storage body 4, and the housing 17 is located at the bottom of the end of the sorting chute 6 extending outside the sorting chamber 2. When the driving member 16 flips the bottom end of the screw upward, the screw is still limited by the two sorting chutes. Even if the screw is suspended below, the screw body is deflected along the length direction B by the driving member 16 moving along the length direction (the movement and rotation of the adjusting pin 13 are driven by artificial driving), and finally matches the shape of the flow-through opening 7. Then, the adjusting pin 13 rolls, the end of the adjusting pin 13 pushes the screw to roll, and finally the screw falls through the flow-through opening 13 and falls onto the top 5 of the storage body outside. One end of the sorting chute 6 extends outside the sorting chamber 2 and communicates with the top 5 of the storage body outside. The screw horizontally rolls through the communication and falls onto the top 5 of the storage body outside. Specifically, the side wall of the entity where the sorting chute of the sorting cylinder 1 is located is provided with a flow-through opening 7. The sorting chute 6 communicates with the top 5 of the storage body outside through the flow-through opening 7. The inclined warehouse top 5 has a plurality of material outlets 8 with different lengths, which are arranged in sequence along the screw moving direction A, and each material outlet 8 extends along the length direction B, and the lengths of the plurality of material outlets 8 increase in sequence along the screw moving direction A. In addition, the warehouse top 5 has a screw head sliding channel 9, which extends along the screw moving direction A, and the screw head sliding channel 9 is located near the end of each material outlet 8. The inside of the warehouse 5 has a warehouse chamber 10 connected to each material outlet 8. The screws on the warehouse top 5 roll in the inclined warehouse top 5, and then enter the warehouse chamber 10 through the material outlet 8 matching the length of the screw to realize reclassification. In addition, it should be noted that each warehouse chamber 10 is provided with a drawer 14, and the screws fall into the drawer 14 through the material outlet 8.
[0030] In addition, the sorter also includes an upper cover 11, which is installed on the topmost sorting cylinder 1 (mainly installed on the sorting cylinder 1 where M5 is located in this embodiment) by bolts, and the upper cover 11 has a discharge port 12, which is connected to the vertical channel 3 on the topmost sorting chamber 2. Specifically, as shown in FIG. 8(b), the inside of the upper cover 11 has a discharge channel 15, which is inclined in the vertical direction inside the upper cover 11, and the other end is connected to the top of the vertical channel 3. The purpose is to facilitate the screws to enter the vertical channel 3 through the discharge port 12 and the discharge channel 15, and after entering the vertical channel 3, the posture is in the axial direction downward state. The diameter of the discharge port 12 matches the size of the screw head, so that the screw head is placed in the discharge port 12 along the axial direction, and the axial direction of the screw head is kept downward on the sorting sliding channel 6.
[0031] The above-described sorter is mainly used in the following method for sorting: First, a screw (may be one of M3, M4 and M5) is placed vertically and inserted into the feeding port 12 of the upper cover 11, the screw enters the vertical channel 3, and the head of the screw is clamped in the corresponding head channel (specifically: because the head channel is set according to the thickness of the head of the screw, so when the head of the screw is thick, it is clamped in the head channel with large diameter, and when the head of the screw is thin, it flows downward through the large-diameter head channel and the vertical sub-channel, until the screw is clamped by the small-diameter head channel), and then the screw slides along the spiral downward sorting chute to the end of the sorting chute outside the sorting chamber, and at this time the axial direction of the screw is downward; Then the direction of the screw is adjusted by the adjusting pin 13, so that the axial direction of the screw is downward (ideal state is vertical state) to horizontal state, and then rolled to the top 5 outside the storage body through the flow port 7, (specifically: when the screw slides to the end of the sorting chute, it is located outside the sorting chamber 2 at this time, because the screw is limited by two sub-channels, even if the screw is suspended below, one end of the driving member 16 extends along the length direction B, the driving member 16 first flips the bottom end of the screw upward, and then the adjusting pin 13 converts the screw lifted from the axial downward (ideal state is vertical state) to horizontal state, that is, the screw is converted from the end downward to the end horizontal; more specifically, the driving member 16 is installed on a housing 17, which is detachably installed on the bottom of the storage body 4 (specifically, sliding connection, that is, one side of the housing 17 has a clamping groove, and the side wall of the storage body 4 has a second clamping block 19 matched with the clamping groove, the second clamping block 19 and the clamping groove are in sliding fit to realize the fixation of the housing 17 and the storage body 4, and the housing 17 is also located at the bottom of the end of the sub-chute 6 extending outside the sorting chamber 2), when the driving member 16 flips the bottom end of the screw upward, the screw is still limited by two sub-channels, even if the screw is suspended below, the driving member 16 moves along the length direction B (the movement and rotation of the adjusting pin 13 are driven by artificial) (as shown in FIG. 8 (e), the red arrow direction) to make the screw body deflect along the length direction B with the two sub-channels as the fulcrum, and finally match the shape of the flow port 7, and then roll through the adjusting pin 13 to make the end of the adjusting pin 13 push to make the screw roll (as shown in FIG. 8 (e), the green arrow direction), and finally make the screw drop through the flow port 13 onto the top 5 outside the storage body), and the head of the screw is located in the screw head chute, because the surface where the top 5 outside the storage body is located is inclined, so the screw slides on the inclined surface, and then enters the corresponding storage chamber 10 through the feeding port 8 according to the length of the screw; specifically: the head of the screw enters the screw head chute, and the screw body is located on the top 5 outside the storage body (as shown in Figure 4 The surface where the top 5 outside the storage body is located is inclined downward along the movement direction of the screw, so the screw enters the storage chamber 10 through the feeding port 8 in the following way: Firstly, the force balance of the screw in the support area of the inclined track; the track is an inclined slope, the gravity of the screw needs to be decomposed along the parallel slope and the vertical slope direction, at this time it is balanced by three forces (static / uniform speed sliding along the slope): - gravity (G = mg): vertically downward, decomposed into the force along the slope downward and the force along the vertical slope downward; - the support force of the slope (N): vertically upward along the slope; - sliding friction force / static friction force (f): upward along the slope, which hinders the screw from sliding down; when the screw moves to the slope, the slope cannot provide support force to the screw, that is, N = 0, and at the same time, because there is no contact, the friction force f = 0 also disappears; at this time, the screw is only subjected to the gravity G, which is vertically downward; according to Newton's second law F = ma, the screw generates a vertically downward acceleration, and no longer moves along the slope, but directly falls through the discharge port 8 into the storage chamber 10.
[0032] The above embodiments are preferred cases of the present application and are not intended to limit the protection scope of the present application. Various modifications or changes made by those skilled in the art within the scope of the appended claims without creative labor are still within the protection scope of the present patent.
Claims
1. A rod-shaped fastener sorter, characterized in that, The system comprises several sorting units, each pair of which is detachably connected vertically. Each sorting unit contains a sorting chamber, and all sorting chambers are connected to a vertical channel. This vertical channel is downwardly oriented, and rod-shaped fasteners enter the channel axially downwards. These fasteners are adjusted and initially sorted based on the thickness of their heads. A storage unit is detachably connected to the outer wall of each sorting unit. Each storage unit has an inclined outer top. The sorting chamber contains a sorting chute spiraling downwards. The sorting chamber is connected to the outer top of the storage unit. A fastener adjustment mechanism is provided at the connection between the two parts to adjust the rod-shaped fastener from a downward axial position to a horizontal position; one end of the sorting slide extends out of the sorting room and communicates with the top of the storage body; the rod-shaped fastener is used to roll horizontally down to the top of the storage body through the communication; the inclined top of the storage body has multiple discharge ports that are adjusted according to the length of the rod-shaped fastener; the interior of the storage body has a storage chamber that communicates with each discharge port; the rod-shaped fasteners on the top of the storage body roll within the inclined top of the storage body and enter the storage chamber through the matching discharge port to achieve re-sorting.
2. The rod-shaped fastener sorter according to claim 1, characterized in that: The vertical channel has several vertical sub-channels, and the several vertical sub-channels are connected sequentially along the vertical direction; Furthermore, each of the vertical sub-channels has a head channel and a vertical sub-channel portion corresponding to the head of the rod-shaped fastener at its upper end. The head channel is connected to its adjacent vertical sub-channel portion and forms a vertical sub-channel. The side wall of the vertical sub-channel is connected to the sorting slide. The size of the multiple head channels decreases sequentially along the vertical direction.
3. The rod-shaped fastener sorter according to claim 2, characterized in that: The sorting chute consists of two spiraling downward sloping chutes with a gap between them. This gap is adjusted according to the head of the rod-shaped fastener. The two chutes are located inside the sorting chamber, with one end of each chute extending out of the sorting chamber.
4. The rod-shaped fastener sorter according to claim 3, characterized in that: A flow opening is provided on the side wall of the entity where the sorting chute extends out of the sorting body, and the sorting chute is connected to the top of the storage body through the flow opening.
5. The rod-shaped fastener sorter according to claim 4, characterized in that: The direction from the sorting chute and flow outlet to the top of the storage body is taken as the direction of movement of the rod-shaped fastener, and the direction perpendicular to the direction of movement of the rod-shaped fastener is taken as the length direction, and this length direction is consistent with the length direction of the rod-shaped fastener. The top of the storage container body is inclined downward along the direction of movement of the rod-shaped fastener; Multiple material discharge ports are arranged sequentially along the movement direction of the rod-shaped fastener, and each material discharge port extends along the length direction, with the length of the multiple material discharge ports increasing sequentially along the movement direction of the rod-shaped fastener.
6. The rod-shaped fastener sorter according to claim 5, characterized in that: The fastener adjustment mechanism comprises a rod-shaped adjusting component and a lifting component. Both the lifting component and the rod-shaped adjusting component are detachably inserted into the sorting chute. One end of the rod-shaped adjusting component extends along the movement direction of the rod-shaped fastener; one end of the lifting component extends in the length direction. The rod-shaped fastener is constrained by two sliding tracks. Even if the rod-shaped fastener is suspended below, the drive component moves in the length direction, causing the screw body of the rod-shaped fastener to deflect in the length direction using the two tracks as fulcrums, ultimately matching the shape of the flow opening. The flow port extends along the length direction, and the horizontal rod-shaped fastener at this end is pushed through the flow port into the top of the storage body by the end of the rod-shaped adjusting member.
7. The rod-shaped fastener sorter according to claim 6, characterized in that: The storage container has a rod-shaped fastener head slide on its outer top, and the rod-shaped fastener head slide extends along the direction of movement of the rod-shaped fastener, and the rod-shaped fastener head slide is located near the ends of all the plurality of discharge ports.
8. The rod-shaped fastener sorter according to claim 7, characterized in that: The sorter also includes a top cover, which is detachably mounted on the topmost sorting body and has a discharge port that is connected to a vertical channel on the topmost sorting chamber. The diameter of the discharge port matches the head size of the rod-shaped fastener, so that the rod-shaped fastener is placed in the discharge port along its axial direction and remains axially downward on the sorting chute.
9. A method for sorting rod-shaped fasteners, performed using the sorter described in any one of claims 1-8, comprising the following steps: S1. Place a rod-shaped fastener vertically and insert it into the discharge port of the top cover. The rod-shaped fastener enters the vertical channel and is stuck in the corresponding head channel by the head of the rod-shaped fastener. Then, due to the gravity of the rod-shaped fastener, it slides down the spiral sorting slide to the end of the sorting slide outside the sorting room. At this time, the axial direction of the rod-shaped fastener is downward. S2. The direction of the rod-shaped fastener is then adjusted by the rod-shaped adjusting member, so that the rod-shaped fastener changes from its axial downward position to its horizontal state, and then rolls through the flow port to the top of the storage body. The head of the rod-shaped fastener is located in the rod-shaped fastener head slide. Since the surface of the top of the storage body is inclined, the rod-shaped fastener slides through the inclined surface, and then enters the corresponding storage chamber through the material drop port according to the length of the rod-shaped fastener.
10. The fastener sorting method according to claim 9, characterized in that: In step S2, the head of the rod-shaped fastener enters the rod-shaped fastener head slide, while the fastener body is located on the top of the storage body. As the surface of the top of the storage body is inclined downward along the screw movement direction, the rod-shaped fastener enters the storage chamber through the discharge port in the following manner: When the rod-shaped fastener moves to the inclined plane, the inclined plane can no longer provide support force to the rod-shaped fastener, that is, N = 0. At the same time, due to the lack of contact, the frictional force f = 0 also disappears. At this time, the rod-shaped fastener is only subject to gravity G, which is vertically downward. According to Newton's second law F = ma, the rod-shaped fastener generates a vertically downward acceleration, no longer moves along the inclined plane, and falls directly into the storage room through the discharge port.