A screw sorting machine

Abstract

The utility model provides a screw sorting machine, including cap diameter sorting mechanism, cap height sorting mechanism and screw length sorting mechanism, cap diameter sorting mechanism includes diameter sorting track, and diameter sorting track has upper chute and lower chute, cap height sorting mechanism includes rotation part and sorting part, and screw length sorting mechanism includes a plurality of sorting units. Such through cap diameter sorting mechanism screening screw of different diameter size, the demand of staying in lower chute and guiding to the rotation part of cap height sorting mechanism, under the rotation effect, screw is under the stop of sorting part because of different height, enters the outlet groove of different vertical clearance, falls into different sorting units again, and under the guidance of slope in sorting unit, is sorted to the sorting chamber of different length opening, and each mechanism is connected and cooperates, and the structure is compact portable, can realize the demand of sorting multiple types of screw simultaneously, and the practicality is higher.

Description

Technical Field

[0001] This utility model relates to the field of screw classification technology, and in particular to a screw sorting machine. Background Technology

[0002] A screw sorting machine is a device that classifies and packages screws according to their physical characteristics. In industrial production, this device is used to classify and package manufactured screws in order to improve work efficiency and reduce costs. Current industrial products mostly use visual recognition technology to identify the physical characteristics of screws, and then control baffles to transport them to the corresponding areas for packaging. To achieve the classification of various types of screws, the machine body is often lengthened and additional identifiers are added, leading to the sorting device evolving into a conveyor belt-type packaging production line.

[0003] In recent years, robotics and drone competitions have become increasingly popular on university campuses, making screws a necessity for students. During assembly or disassembly, different screws inevitably get mixed up, or screw trays are knocked over. Industrial-grade screw sorting machines are too expensive and bulky to solve this problem on campus. To address the need for rapid screw re-sorting, numerous portable sorting machines have emerged online. However, these machines currently suffer from several drawbacks: they cannot distinguish between a wide variety of screws, they cannot sort by screw head, they can only sort specific types of screws, and they require motor-driven operation or multiple operators.

[0004] Therefore, it is necessary to propose a screw sorting machine to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of this utility model is to provide a screw sorting machine to solve the problem that existing screw sorting machines can only distinguish between a single type and cannot classify screws by head.

[0006] To achieve the above objectives, this utility model provides a screw sorting machine, including a screw diameter sorting mechanism, a screw height sorting mechanism, and a screw length sorting mechanism; wherein, The nut diameter sorting mechanism includes a diameter sorting track, a first storage chamber, and a second storage chamber. The diameter sorting track has an upper sliding groove and a lower sliding groove. The inner width of the upper sliding groove is greater than the inner width of the lower sliding groove. The first storage chamber is located directly below the diameter sorting track. The second storage chamber is arranged longitudinally alongside the first storage chamber. The upper sliding groove is inclined downward toward the second storage chamber. The nut height sorting mechanism includes a rotating part and a sorting part. The sliding groove and the rotating part are connected. The rotating part is rotatably arranged around its own vertical axis. The sorting part has multiple stop plates. The vertical gap between the multiple stop plates and the rotating part decreases sequentially along the movement direction of the rotating part. Each stop plate has an outlet groove at its end. The screw length sorting mechanism includes multiple sorting units, each sorting unit is connected to one of the outlet grooves, and each sorting unit has a downward sloping surface. The sloping surface is provided with a sorting chute for the screw nut to slide on and multiple sorting chambers arranged at intervals. The length of the top opening of the multiple sorting chambers gradually increases from the high end to the low end.

[0007] Preferably, the nut height sorting mechanism includes a sorting base, the rotating part is a sorting turntable, the sorting part includes a sorting frame and a stop block, the sorting turntable is connected to the sorting base and is rotatably arranged around its own axis, the sorting turntable has a plurality of placement slots arranged at intervals along its own circumference, the placement slots extend radially along the sorting turntable and one end extends to the outer circumference of the sorting turntable; The sorting frame is covered and connected to the outside of the sorting base. The top of the sorting frame is recessed to form a placement space. The stop block is connected to the top of the sorting frame and is set in the placement space. A vertical gap is formed between the stop block and the sorting turntable. The stop block is stepped to form three stop plates. The vertical gap between the three stop plates and the sorting turntable decreases sequentially along the movement direction of the rotating part. Three outlet grooves are opened on the side wall of the sorting frame and are spaced apart along its own circumference. The end of each stop plate is connected to one of the outlet grooves.

[0008] Preferably, the sidewall of the stop piece is arc-shaped.

[0009] Preferably, each sorting unit includes a length sorting base, which includes a turning section and a sorting section arranged perpendicularly to each other. The top of the turning section is recessed to form a turning groove. The high end of the turning section is connected to the outlet groove, and the low end of the turning section is connected to the sorting section. The low end of the turning section cantilevered outward in the horizontal direction to form a cantilever baffle. The top of the sorting section has a downward sloping surface and a sorting chute along its own length direction. The sorting chute is disposed between the end of the cantilever baffle and the side wall of the sorting section. The slope of the sorting section is also recessed to form three sorting chambers spaced apart along its own extension direction. The top opening length of the three sorting chambers gradually increases from the high end to the low end.

[0010] Preferably, the mechanism further includes a drive mechanism, which comprises a lifting assembly, a crank-connecting rod assembly, and a push rod assembly. The lifting assembly includes a wedge block and a lifting block. The crank-connecting rod assembly includes a first connecting rod, a second connecting rod, and a drive handle. The push rod assembly includes a connecting plate and a first push rod and a second push rod spaced laterally. The nut diameter sorting mechanism also includes a feeding channel, which is arranged laterally side-by-side on one side of the diameter sorting track. The wedge block is connected to the feed channel and is slidably arranged longitudinally. The lifting block is placed on top of the wedge block and is vertically movable. The top of the lifting block is used to place screws. The first end of the first connecting rod is hinged to the high end of the wedge block. The second end of the first connecting rod is hinged to the first end of the second connecting rod. The drive handle is connected to the hinge between the first connecting rod and the second connecting rod. The second end of the second connecting rod is hinged to the central axis of the sorting turntable. The first push rod and the second push rod are both connected to the connecting plate. The end of the first push rod is connected to the low end of the wedge block. The extension direction of the second push rod is attached to the top surface of the sliding groove.

[0011] Preferably, the top surface of the sorting frame is provided with an arc-shaped guide block for pushing the screw toward the center of the sorting turntable.

[0012] Preferably, the screw length sorting mechanism further includes a collection bin, which is connected to the bottom of the length sorting base. The collection bin has multiple collection chambers, with a corresponding collection chamber below each sorting chamber. The bottom surface of each sorting chamber is inclined downward toward the collection chamber.

[0013] Preferably, the top of the lifting block is formed with a feeding ramp, which is inclined downward toward the diameter sorting track.

[0014] Preferably, the sorting base has an installation groove, and the outer side wall of the sorting frame protrudes outward along its own radial direction to form a protective baffle. Each of the outlet slots is provided with a corresponding protective baffle. The bottom end of the protective baffle is inserted into the installation groove, and the protective baffle is positioned on both sides of the turning section.

[0015] Preferably, it further includes a material conveying chute, which is inclined, with its high end connected to the lower chute and its low end connected to the sorting turntable.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This utility model provides a screw sorting machine, including a screw diameter sorting mechanism, a screw height sorting mechanism, and a screw length sorting mechanism. The screw diameter sorting mechanism includes a diameter sorting track, a first storage chamber, and a second storage chamber. The diameter sorting track has an upper sliding groove and a lower sliding groove. The inner width of the upper sliding groove is greater than the inner width of the lower sliding groove. The first storage chamber is located directly below the diameter sorting track. The second storage chamber is arranged longitudinally alongside the first storage chamber. The upper sliding groove is inclined downwards towards the second storage chamber. The screw height sorting mechanism includes a rotating part and a sorting part. The chute and the rotating part are connected. The rotating part is rotatably arranged around its own vertical axis. The sorting part has multiple stop plates. The vertical gap between the multiple stop plates and the rotating part decreases sequentially along the movement direction of the rotating part. Each stop plate has an outlet groove at its end. The screw length sorting mechanism includes multiple sorting units. Each sorting unit is connected to an outlet groove. Each sorting unit has a downward sloping surface. Multiple sorting chambers are arranged at intervals on the slope. The length of the top opening of the multiple sorting chambers gradually increases from the high end to the low end. In this way, screws of different diameters are sorted by the nut diameter sorting mechanism. Those that meet the requirements stay in the sliding groove and are guided to the rotating part of the nut height sorting mechanism. Under the action of rotation, the screws are stopped by the stop of the sorting part due to their different heights and enter the exit grooves with different vertical gaps. They are then sorted into different sorting units. In the sorting units, they are further sorted into sorting chambers with openings of different lengths under the guidance of the slope. The various mechanisms are interconnected and cooperate with each other. The structure is compact and portable, and it can meet the needs of sorting multiple types of screws at the same time, which is highly practical. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure in one embodiment of the present utility model; Figure 2 This is a schematic elevation view of the overall structure in one embodiment of the present utility model; Figure 3 This is a cross-sectional schematic diagram of the nut diameter sorting mechanism in one embodiment of the present invention; Figure 4 This is a longitudinal cross-sectional schematic diagram of the nut diameter sorting mechanism in one embodiment of the present invention; Figure 5This is an exploded view of the nut height sorting mechanism in one embodiment of the present invention; Figure 6 This is a three-dimensional schematic diagram of the inner side of the sorting frame in one embodiment of the present utility model; Figure 7 This is a perspective view of a length sorting base in one embodiment of the present invention; Figure 8 This is a three-dimensional schematic diagram of the driving mechanism in one embodiment of the present invention.

[0019] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0020] Explanation of icon numbers: 10. Nut diameter sorting mechanism; 110. Diameter sorting track; 111. Upper chute; 112. Lower chute; 120. First storage chamber; 130. Second storage chamber; 140. Feeding channel; 150. Conveying chute; 20. Nut height sorting mechanism; 210. Sorting base; 211. Mounting groove; 220. Sorting turntable; 221. Placement slot; 230. Sorting frame; 231. Placement space; 232. Outlet slot; 233. Arc-shaped guide block; 234. Enclosure baffle; 240. Stop block; 241. Stop plate; 30. Screw length sorting mechanism; 310. Steering section; 311. Steering chute; 312. Cantilever baffle; 320. Sorting section; 321. Sorting chute; 330. Sorting chamber; 340. Collection bin; 341. Collection chamber; 40. Drive mechanism; 410. Lifting assembly; 411. Wedge block; 412. Lifting block; 420. Crank-connecting rod assembly; 421. First connecting rod; 422. Second connecting rod; 423. Drive handle; 430. Push rod assembly; 431. Connecting plate; 432. First push rod; 433. Second push rod. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0025] Please see the appendix Figure 1-8 The present invention provides a screw sorting machine in one embodiment, comprising a nut diameter sorting mechanism 10, a nut height sorting mechanism 20, and a screw length sorting mechanism 30, the specific scheme of which is as follows: The nut diameter sorting mechanism 10 includes a diameter sorting track 110, a first storage chamber 120, and a second storage chamber 130. The diameter sorting track 110 has an upper sliding groove 111 and a lower sliding groove 112. The inner width of the upper sliding groove 111 is greater than the inner width of the lower sliding groove 112. The first storage chamber 120 is located directly below the diameter sorting track 110. The second storage chamber 130 is arranged longitudinally alongside the first storage chamber 120. The upper sliding groove 111 is inclined downward toward the second storage chamber 130. The nut height sorting mechanism 20 includes a rotating part and a sorting part. The lower sliding groove 112 and the rotating part are connected. The sorting section is rotatably arranged around its own vertical axis. It has multiple stop plates 241, and the vertical gap between the multiple stop plates 241 and the rotating section decreases sequentially along the movement direction of the rotating section. Each stop plate 241 has an outlet groove 232 at its end. The screw length sorting mechanism 30 includes multiple sorting units, each sorting unit is connected to an outlet groove 232, and each sorting unit has a downward sloping surface. The sloping surface has a sorting chute 321 for the screw nut to slide on and multiple sorting chambers 330 arranged at intervals. The length of the top opening of the multiple sorting chambers 330 gradually increases from the high end to the low end.

[0026] Specifically, the screw sorting machine in this application includes a nut diameter sorting mechanism 10, a nut height sorting mechanism 20, and a screw length sorting mechanism 30. The nut diameter sorting mechanism 10 is used to initially sort screws with different nut diameters and send screws that meet the required standards into the subsequent nut height sorting mechanism 20. This mechanism includes a diameter sorting track 110, a first storage chamber 120, and a second storage chamber 130. The diameter sorting track 110 achieves initial sorting by setting upper sliding grooves 111 and lower sliding grooves 112 with different inner cavity widths. When screws are placed in, those with a nut diameter larger than the inner cavity width of the upper sliding groove 111 will be stuck at the top of the upper sliding groove 111 and move along... The screw slides down the inclined surface at the top of the upper slide groove 111 to fall into the second storage chamber 130. Therefore, it can be seen that the second storage chamber 130 is used to store screws with a nut diameter greater than the inner width of the upper slide groove 111, while screws with a nut diameter smaller than the inner width of the upper slide groove 111 fall directly. Screws with a nut diameter smaller than the inner width of the lower slide groove 112 continue to fall into the lower first storage chamber 120. Screws with a nut diameter between the inner width of the upper slide groove 111 and the inner width of the lower slide groove 112 stay at the top of the lower slide groove 112, and the end outlet of the lower slide groove 112 is directly connected to the rotating part of the nut height sorting mechanism 20.

[0027] Furthermore, it also includes a conveying chute 150, which is inclined. The higher end of the conveying chute 150 is connected to the lower sliding chute 112, and the lower end of the conveying chute 150 is connected to the sorting turntable 220. Thus, screws sliding down from the lower sliding chute 112 slide down the slope of the conveying chute 150 onto the rotating part (sorting turntable 220). When a screw with a nut diameter between the width of the upper sliding chute 111 and the width of the lower sliding chute 112 falls into the rotating part, the rotating part can rotate around its own axis to drive the screw to rotate. When the screw rotates into the sorting part, the stop plates 241 inside the sorting part are used to stop the screw. Because multiple stop plates 241 and the rotating part... The vertical gap between the moving parts decreases sequentially along the direction of movement of the rotating part. Therefore, screws with higher nut heights are stopped first. As the rotation continues, the screws rotate along the extension direction of the stop plate 241 to the end of the stop plate 241 and slide out of the outlet groove 232 at the end of the stop plate 241. Screws with a height less than the vertical gap height of the first stop plate 241 continue to rotate to the next step stop plate 241, and so on. Screws with the smallest nut height rotate to the last step stop plate 241 and then slide out of the last outlet groove 232 after being stopped. Each outlet groove 232 is connected to a sorting unit for reception and further screw length sorting.

[0028] Furthermore, each sorting unit has a downward sloping surface. When a screw that has slid down from the outlet groove 232 falls into the sorting unit, the screw nut will get stuck in the sorting chute 321 and slide down along the sorting chute 321. At this time, the screw will roll down the slope. Multiple sorting chambers 330 with different top opening lengths are opened on the slope. The top opening length of the sorting chamber 330 gradually increases from the high end to the low end. Thus, the opening length near the high end of the slope is the smallest. Screws with larger lengths will get stuck outside the opening and will not be able to fall in to continue sliding down. Screws with a length smaller than the opening length will fall into the sorting chamber 330 below to complete further length sorting.

[0029] In a preferred embodiment of this utility model, the nut height sorting mechanism 20 includes a sorting base 210, a rotating part being a sorting turntable 220, and a sorting part including a sorting frame 230 and a stop block 240. The sorting turntable 220 is connected to the sorting base 210 and is rotatably arranged around its own axis. The sorting turntable 220 has multiple placement slots 221 spaced apart along its circumference. The placement slots 221 extend radially along the sorting turntable 220 and one end extends to the outer periphery of the sorting turntable 220. The sorting frame 230 is fitted over and connected to the sorting base 210. The top of the sorting frame 230 is recessed to form a placement space 231. The stop block 240 is connected to the top of the sorting frame 230 and is disposed in the placement space 231. A vertical gap is formed between the stop block 240 and the sorting turntable 220. The stop block 240 is stepped to form three stop plates 241. The vertical gap between the three stop plates 241 and the sorting turntable 220 decreases sequentially along the movement direction of the rotating part. Three outlet grooves 232 are provided on the side wall of the sorting frame 230, which are spaced apart along their circumference. The end of each stop plate 241 is connected to one outlet groove 232.

[0030] It should be noted that the sorting base 210 is used for mounting the sorting turntable 220 and the sorting frame 230. It can be understood that the sorting base 210 has a cylinder so that the sorting turntable 220 can be inserted into its central axis to achieve rotation. The sorting turntable 220 has multiple placement slots 221 spaced circumferentially. These slots 221 are used for placing screws, with the screw cap positioned above the slot and the screw extending into it. Therefore, the width of the placement slot 221 needs to be referenced to the inner cavity of the sliding groove 112. Width setting; the placement space 231 formed at the top of the sorting frame 230 is used for the placed screws to rotate with the sorting turntable 220 until they rotate into the stop block 240. The stop block 240 is stepped, and each step of the stepped shape forms a vertical gap with the surface of the sorting turntable 220. Each step is a stop piece 241. In a preferred embodiment of this application, the number of stop pieces 241 is three, and the vertical gap between the three stop pieces 241 and the sorting turntable 220 decreases sequentially along the movement direction of the rotating part, as shown in the attached figure. Figure 1 As shown, when the sorting turntable 220 rotates counterclockwise, the screws placed in the placement groove 221 rotate counterclockwise and first come into contact with the stop plate 241 with a larger vertical gap. Screws with a nut height greater than this vertical gap are held in place by the stop plate. As the rotation continues, the screws with their nuts held in place rotate along the side of the stop plate 241 to the end, which is the corresponding outlet groove 232, and then slide down. Screws with a nut height less than the vertical gap continue to rotate until they reach the stop plate 241 with a vertical gap sufficient to stop them. Therefore, the side wall of the stop plate 241 can be set in an arc shape, which can play a guiding role. Under the action of the arc, the stop plate 241 is better guided to the outer periphery of the sorting turntable 220, so that it slides down from the outlet groove 232.

[0031] Furthermore, the top surface of the sorting frame 230 is provided with an arc-shaped guide block 233 for pushing screws toward the center of the sorting turntable 220. This arc-shaped guide block can be assembled and fits against the sorting turntable to push each screw located at the edge of the sorting turntable 220 toward the center of the sorting turntable 220, thereby preventing the screws from being thrown out due to excessive rotation speed.

[0032] In a preferred embodiment of this utility model, each sorting unit includes a length sorting base (not shown in the figure). The length sorting base includes a turning section 310 and a sorting section 320 arranged perpendicularly to each other. The top of the turning section 310 is recessed to form a turning groove 311. The higher end of the turning section 310 is connected to the outlet groove 232, and the lower end of the turning section 310 is connected to the sorting section 320. The lower end of the turning section 310 extends outward in the horizontal direction. The cantilever baffle 312 is formed. The top of the sorting section 320 has a downward sloping surface and a sorting chute 321 along its own length direction. The sorting chute 321 is located between the end of the cantilever baffle 312 and the side wall of the sorting section 320. The slope of the sorting section 320 is also recessed to form three sorting chambers 330 arranged at intervals along its own extension direction. The top opening length of the three sorting chambers 330 gradually increases from the high end to the low end.

[0033] It is worth noting that the deflection section 310 and the sorting section 320 are arranged perpendicularly to each other to facilitate the subsequent placement orientation of screws. After the screw slides out of the outlet groove 232, it enters the deflection groove 311 of the deflection section 310. The screw nut is stuck in the deflection groove 311, and the screw part extends into the deflection groove 311 to slide down along the deflection groove 311 until it falls into the sorting section 320. It is noteworthy that the lower end of the deflection section 310 cantilevered outward in the horizontal direction to form a cantilever baffle 312. The cantilever baffle 312 is used to ensure that the screw nut does not slide along the groove before entering the chute. The screw rolls directly down the slope of the sorting section 320, or the nut part falls into the sorting chute 321 first and then slides down along the sorting chute 321. When it rolls down, the extension direction of the screw and the length direction of the top opening of the sorting chamber 330 are in the same vertical plane. When the length of the screw is greater than the length of the top opening of the uppermost sorting chamber 330, it continues to slide down. When the length is less than the length of the top opening of the sorting chamber 330, it falls into the corresponding sorting chamber 330 under the action of gravity (the screw part is mostly suspended above the top of the sorting chamber 330, which may have a side-tipping effect). This completes the sorting of screws of different lengths.

[0034] Furthermore, the screw length sorting mechanism 30 also includes a collection chamber 340, which is connected to the bottom of the length sorting base. The collection chamber 340 has multiple collection chambers 341, and each sorting chamber 330 has a corresponding collection chamber 341 below it. The bottom surface of the sorting chamber 330 is inclined downward toward the collection chamber 341.

[0035] It is understood that the collection chamber 341 is used to collect screws from each sorting chamber 330 to increase the screw storage capacity. After the screws fall into the sorting chamber 330, they slide down the bottom of the sorting chamber 330 by tilting and then fall into the sorting chamber 330 for storage.

[0036] In a preferred embodiment of this utility model, a drive mechanism 40 is further included. The drive mechanism 40 includes a lifting assembly 410, a crank-connecting rod assembly 420, and a push rod assembly 430. The lifting assembly 410 includes a wedge block 411 and a lifting block 412. The crank-connecting rod assembly 420 includes a first connecting rod 421, a second connecting rod 422, and a drive handle 423. The push rod assembly 430 includes a connecting plate 431 and a first push rod 432 and a second push rod 433 arranged laterally. The nut diameter sorting mechanism 10 also includes a feeding channel 140, which is arranged laterally side-by-side on one side of the diameter sorting track 110. The wedge block 411 is connected to the feeding channel 140 and is slidably arranged longitudinally. The lifting block 411... 12 is placed on top of the wedge block 411 and is vertically movable. The top of the lifting block 412 is used to place screws. The first end of the first connecting rod 421 is hinged to the high end of the wedge block 411, and the second end of the first connecting rod 421 is hinged to the first end of the second connecting rod 422. The drive handle 423 is connected to the hinge between the first connecting rod 421 and the second connecting rod 422. The second end of the second connecting rod 422 is hinged to the central axis of the sorting turntable 220. The first push rod 432 and the second push rod 433 are both connected to the connecting plate 431. The end of the first push rod 432 is connected to the low end of the wedge block 411, and the extension direction of the second push rod 433 is attached to the top surface of the sliding groove 112.

[0037] It is worth noting that the drive mechanism 40 can link the screw conveying between the nut diameter sorting mechanism 10 and the nut height sorting mechanism 20. It includes a lifting assembly 410, a crank-connecting rod assembly 420, and a push rod assembly 430. The lifting assembly 410 lifts the feed to send the screw into the diameter sorting track 110, while the crank-connecting rod assembly 420 drives the sorting turntable 220 to rotate. The push rod assembly 430 is used to push the screw stuck on the sliding groove 112 to push it into the conveying chute 150. Specifically, the wedge block 411 can only move longitudinally in the feed channel 140. The longitudinal movement is driven by the rotation of the crank-connecting rod assembly 420 to move it longitudinally back and forth. When the wedge block 411 moves longitudinally back and forth, it drives the push rod assembly 430 to push back and forth, thereby achieving linkage.

[0038] For example, when the drive handle 423 is rotated, causing the hinge point of the first link 421 and the second link 422 to rotate away from the nut diameter sorting mechanism 10, the first link 421 will drive the wedge block 411 to move forward toward the sorting base 210. At this time, the lower end of the wedge block 411 will move to the vertical section of the feed channel 140, and the lifting block 412 will decrease as the cross-sectional height of the wedge block 411 decreases. At this time, the screw cannot be fed above the diameter sorting track 110, and therefore no material will be fed. At the same time, due to the forward movement of the wedge block 411... The connecting rod assembly (first connecting rod 421) will move forward, and the second connecting rod 422 will be integrally formed with the first connecting plate through the connecting plate 431, so the second connecting rod 422 will also move forward. Since the extension direction of the second connecting rod 422 is attached to the top surface of the sliding groove 112, the second connecting rod 422 will push the screw on the sliding groove 112 under the action of moving forward, so as to push it into the conveying chute 150 and slide down the slope of the conveying chute 150 into the sorting turntable 220; and when the drive handle 423 is rotated, the first connecting rod... When the hinge point of the first link 421 and the second link 422 rotates towards the direction closer to the diameter sorting mechanism 10 of the nut, the first link 421 will drive the wedge block 411 away from the sorting base 210, i.e., move backward. At this time, the high end of the wedge block 411 will also move backward to the vertical section of the feed channel 140. The lifting block 412 will increase in height as the cross-sectional height of the wedge block 411 increases, thereby lifting the lifting block 412 to the top surface of the diameter sorting track 110. Furthermore, the top of the lifting block 412 forms a feed slope, and the feed... The slope is inclined downwards towards the diameter sorting track 110, so the screw is lifted up and falls into the diameter sorting track 110 under the guidance of the feed slope for diameter sorting. The second connecting rod 422 will also move backwards and leave the top of the slide groove 112 to facilitate the free fall and sorting of the screw. It can be understood that the rotation of the drive handle 423 also drives the sorting turntable 220 to achieve the sorting of the nut height. The coordination between multiple mechanisms is good and the fit is tight, which greatly improves the sorting efficiency.

[0039] Furthermore, the sorting base 210 is provided with a mounting groove 211, and the outer side wall of the sorting frame 230 is provided with a protective baffle 234 protruding outward along its own radial direction. Each of the outlet slots 232 is provided with a corresponding protective baffle 234. The bottom end of the protective baffle 234 is inserted into the mounting groove 211, and the protective baffle 234 is blocked on both sides of the turning section 310.

[0040] It should be noted that the mounting groove 211 enables the sorting frame 230 to achieve stable installation by insertion, while the protective baffle 234 is positioned on both sides of the turning section 310 to prevent the screw steel from falling off the sides when it comes out of the outlet groove 232, thus securing it firmly in the turning groove 311 of the turning section 310 and allowing it to slide smoothly down.

[0041] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A screw sorting machine, characterized in that, This includes a nut diameter sorting mechanism, a nut height sorting mechanism, and a screw length sorting mechanism; among which, The nut diameter sorting mechanism includes a diameter sorting track, a first storage chamber, and a second storage chamber. The diameter sorting track has an upper sliding groove and a lower sliding groove. The inner width of the upper sliding groove is greater than the inner width of the lower sliding groove. The first storage chamber is located directly below the diameter sorting track. The second storage chamber is arranged longitudinally alongside the first storage chamber. The upper sliding groove is inclined downward toward the second storage chamber. The nut height sorting mechanism includes a rotating part and a sorting part. The sliding groove and the rotating part are connected. The rotating part is rotatably arranged around its own vertical axis. The sorting part has multiple stop plates. The vertical gap between the multiple stop plates and the rotating part decreases sequentially along the movement direction of the rotating part. Each stop plate has an outlet groove at its end. The screw length sorting mechanism includes multiple sorting units, each sorting unit is connected to one of the outlet grooves, and each sorting unit has a downward sloping surface. The sloping surface is provided with a sorting chute for the screw nut to slide on and multiple sorting chambers arranged at intervals. The length of the top opening of the multiple sorting chambers gradually increases from the high end to the low end.

2. The screw sorting machine according to claim 1, characterized in that, The nut height sorting mechanism includes a sorting base, the rotating part is a sorting turntable, the sorting part includes a sorting frame and a stop block, the sorting turntable is connected to the sorting base and is rotatably arranged around its own axis, the sorting turntable has a plurality of placement slots arranged at intervals along its own circumference, the placement slots extend radially along the sorting turntable and one end extends to the outer circumference of the sorting turntable; The sorting frame is covered and connected to the outside of the sorting base. The top of the sorting frame is recessed to form a placement space. The stop block is connected to the top of the sorting frame and is set in the placement space. A vertical gap is formed between the stop block and the sorting turntable. The stop block is stepped to form three stop plates. The vertical gap between the three stop plates and the sorting turntable decreases sequentially along the movement direction of the rotating part. Three outlet grooves are opened on the side wall of the sorting frame and are spaced apart along its own circumference. The end of each stop plate is connected to one of the outlet grooves.

3. The screw sorting machine according to claim 2, characterized in that, The sidewall of the stop plate is arc-shaped.

4. The screw sorting machine according to claim 2, characterized in that, Each sorting unit includes a length sorting base, which includes a turning section and a sorting section arranged perpendicularly to each other. The top of the turning section is recessed to form a turning chute. The high end of the turning section is connected to the outlet chute, and the low end of the turning section is connected to the sorting section. The low end of the turning section cantilevered outward in the horizontal direction to form a cantilever baffle. The top of the sorting section has a downward sloping surface and a sorting chute along its own length. The sorting chute is located between the end of the cantilever baffle and the side wall of the sorting section. The slope of the sorting section is also recessed to form three sorting chambers spaced apart along its own extension direction. The top opening length of the three sorting chambers gradually increases from the high end to the low end.

5. The screw sorting machine according to claim 4, characterized in that, It also includes a drive mechanism, which comprises a lifting assembly, a crank-connecting rod assembly, and a pusher assembly. The lifting assembly includes a wedge block and a lifting block. The crank-connecting rod assembly includes a first connecting rod, a second connecting rod, and a drive handle. The pusher assembly includes a connecting plate and a first pusher and a second pusher arranged laterally at intervals. The nut diameter sorting mechanism also includes a feeding channel, which is arranged laterally side-by-side on one side of the diameter sorting track. The wedge block is connected to the feed channel and is slidably arranged longitudinally. The lifting block is placed on top of the wedge block and is vertically movable. The top of the lifting block is used to place screws. The first end of the first connecting rod is hinged to the high end of the wedge block. The second end of the first connecting rod is hinged to the first end of the second connecting rod. The drive handle is connected to the hinge between the first connecting rod and the second connecting rod. The second end of the second connecting rod is hinged to the central axis of the sorting turntable. The first push rod and the second push rod are both connected to the connecting plate. The end of the first push rod is connected to the low end of the wedge block. The extension direction of the second push rod is attached to the top surface of the sliding groove.

6. The screw sorting machine according to claim 3, characterized in that, The top surface of the sorting frame is provided with an arc-shaped guide block for pushing the screw toward the center of the sorting turntable.

7. The screw sorting machine according to claim 4, characterized in that, The screw length sorting mechanism also includes a collection bin, which is connected to the bottom of the length sorting base. The collection bin has multiple collection chambers, and each sorting chamber has a corresponding collection chamber below it. The bottom surface of the sorting chamber is inclined downward toward the collection chamber.

8. The screw sorting machine according to claim 5, characterized in that, The top of the lifting block has a feeding ramp, which is inclined downward toward the diameter sorting track.

9. The screw sorting machine according to claim 4, characterized in that, The sorting base has an installation groove, and the outer side wall of the sorting frame protrudes outward along its own radial direction to form a protective baffle. Each outlet slot is provided with a corresponding protective baffle. The bottom end of the protective baffle is inserted into the installation groove, and the protective baffle is blocked on both sides of the turning section.

10. The screw sorting machine according to claim 5, characterized in that, It also includes a material conveying chute, which is inclined, with its high end connected to the lower chute and its low end connected to the sorting turntable.

Images