Root canal expansion needle sorting equipment

Abstract

The utility model relates to root canal expansion needle sorting equipment which comprises a base, a vibration assembly arranged on the base, a screening mechanism fixed to a vibration table, a feeding container and a collecting unit located below the screening mechanism. The vibration assembly comprises a vibration table and a vibration exciter for driving the vibration table; the screening mechanism is provided with a composite screening channel comprising a longitudinal channel and a transverse channel; the gap structure of the composite sieve channel is that under the driving of the vibration exciter, short-specification instruments can enter the collecting unit through the composite sieve channel, and long-specification instruments are intercepted on the upper portion of the composite sieve channel. The utility model provides root canal expansion needle sorting equipment which aims to solve the problems of low sorting precision, low efficiency and the like of traditional manual sorting of root canal expansion needles.

Description

Technical Field

[0001] This utility model relates to the field of medical device manufacturing equipment technology, specifically to a root canal retractor needle sorting device. Background Technology

[0002] Root canal reamers are essential instruments used in dental treatment to enlarge root canals, and different clinical treatment needs require the use of root canal reamers of different sizes. Accurate sorting of root canal reamers of different sizes is crucial in the production process of medical device manufacturers.

[0003] Currently, traditional root canal reamer sorting primarily relies on manual labor. However, manual sorting has several drawbacks. Firstly, it is susceptible to the subjective influence of operators, such as visual fatigue and inconsistent judgment standards, leading to significant sorting errors and making it difficult to guarantee consistent product quality. Secondly, manual sorting is inefficient and cannot meet the demands of large-scale production by medical device manufacturers. As production scales up, the limitations of manual sorting become increasingly apparent, urgently requiring automated sorting equipment that can improve sorting accuracy and efficiency. Utility Model Content

[0004] In view of this, the present invention provides a root canal reamer sorting device to solve the problems of low sorting accuracy and low efficiency of traditional manual sorting of root canal reamers.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A root canal retractor needle sorting device includes a base, a vibration assembly disposed on the base, a sieving mechanism fixed to a vibration table, a feed container, and a collection unit located below the sieving mechanism; the vibration assembly includes a vibration table and an exciter driving the vibration table; the sieving mechanism is provided with a composite sieve channel including a longitudinal channel and a transverse channel; wherein, the gap structure of the composite sieve channel is such that, driven by the exciter, short-sized instruments can enter the collection unit through the composite sieve channel, while long-sized instruments are retained in the upper part of the composite sieve channel.

[0007] This equipment achieves highly efficient sorting of root canal reamers of different sizes through the coordinated design of the vibration components and the composite sieve channel. Driven by an exciter, the vibration table generates multidimensional vibrations, causing the instruments to differentiate their movement paths within the composite sieve channel due to size differences—shorter instruments pass through the sieve channel gaps and enter the collection unit due to gravity and vibration, while longer instruments are physically blocked and retained at the top of the sieve channel. This sorting mechanism avoids the subjective errors of traditional manual sorting, significantly improving sorting accuracy and efficiency, and is particularly suitable for quality control in large-scale production by medical device manufacturers. Furthermore, the structural design of the composite sieve channel balances sorting sensitivity and equipment compactness, adapting to the grading requirements of different instrument models while reducing the risk of material jamming, ensuring the continuity and stability of the sorting process.

[0008] Preferably, the longitudinal channel and the transverse channel of the composite screen form a right-angle transition structure.

[0009] The right-angle transition structure optimizes the smoothness of the sorting path by guiding the movement trajectory of the instruments. The longitudinal channel utilizes gravity to rapidly move the instruments downwards, while the right-angle turn in the transverse channel forces the instruments to change direction through vibrational inertia, thereby enhancing the size-based screening effect. This structure extends the residence time of the instruments within the sieve channel, increasing screening opportunities; furthermore, the natural sorting effect of the path turn effectively distinguishes instruments of different lengths. The right-angle transition also reduces the risk of instrument accumulation that might occur due to the curved surface design within the sieve channel, making it particularly suitable for sorting slender metal instruments. Furthermore, this design simplifies the sieve channel manufacturing process, reduces manufacturing costs, and facilitates subsequent maintenance and cleaning.

[0010] Preferably, the right-angle transition structure includes a guide slope and a guide protrusion provided on the guide slope. The guide slope extends from the bottom of the vertical screen channel to the horizontal screen channel, and the height of the guide protrusion gradually decreases from the vertical screen channel to the horizontal screen channel.

[0011] During the screening process, materials are prone to flow obstruction and blockage at the right-angle transition between vertical and horizontal screen channels. The guide ramp, extending from the bottom of the vertical screen channel towards the horizontal channel, provides a smooth transition path for the material, allowing it to transition more naturally from vertical to horizontal. This reduces material accumulation and jamming caused by right-angle turns, ensuring the continuity and efficiency of the entire screening process. Guide protrusions on the guide ramp further precisely guide the material's direction of travel. Especially for specially shaped instruments like root canal reamers, these protrusions prevent them from shifting or tumbling during the transition, ensuring they follow a predetermined path and improving screening accuracy and stability. Because the height of the guide protrusions gradually decreases from the vertical to the horizontal screen channel, different sizes of root canal reamers experience varying degrees of obstruction when passing through this structure. Longer instruments may be more easily blocked by higher guide protrusions, while shorter instruments can pass over lower ones more smoothly. This further enhances the ability to differentiate between different sizes of screening instruments. During the screening process, longer instruments are more likely to be trapped at the top of the composite screen channel, while shorter instruments more easily pass through and enter the collection unit, thus improving overall screening accuracy. The guide ramps and protrusions rationally guide the material, avoiding violent collisions and friction at right-angle transitions, reducing the impact and wear on the screen channel and surrounding components. This not only helps extend the service life of related equipment components and reduce the frequency of equipment maintenance and replacement, but also reduces the risk of impurities contaminating the material due to component wear, ensuring screening quality.

[0012] Preferably, the end of the transverse channel is provided with a tapered guide section.

[0013] The tapered guide section accelerates the directional sliding of short-sized instruments by narrowing the channel cross-sectional area, while simultaneously forming a secondary retention barrier for longer instruments. This design not only improves sorting accuracy but also guides instruments into the collection unit through the tapered end structure, preventing material dispersion or residue caused by excessively wide channels. The tilt angle of the guide section matches the vibration frequency, allowing adjustment of the instrument sliding speed to accommodate the sorting needs of instruments with different materials or surface roughness. Furthermore, the tapered structure reduces the impact of collisions between instruments and the end of the sieve channel, minimizing surface damage, especially providing significant protection for precision medical devices.

[0014] Preferably, the screening mechanism includes a screening base and a screening bottom plate, the composite screen channel is disposed through the screening base, the screening bottom plate is connected to the vibrating table through a linear guide mechanism, and the screening bottom plate is provided with a material guiding channel communicating with the composite screen channel.

[0015] The modular screening mechanism achieves functional zoning and rapid maintenance through a split design. The separate structure of the screening base and the bottom plate allows for individual replacement or adjustment of screen parameters (such as gap width and channel angle) without the need for complete equipment disassembly, significantly reducing downtime. The linear guide mechanism ensures a rigid connection between the screening bottom plate and the vibrating table, while absorbing lateral stress generated by multi-dimensional vibration to prevent screen deformation. The precise alignment design of the material guide channel and the composite screen channel ensures seamless connection from screening to collection, reducing material loss during the sorting process. In addition, this structure supports rapid switching between multiple specifications of screening bottom plates to meet the needs of flexible production.

[0016] Preferably, the screening base is also provided with a guide ramp to guide the short-sized and long-sized instruments in the feed container into the composite screen channel.

[0017] The guide ramp, through the combined effect of geometric guidance and vibration, significantly optimizes the sorting efficiency and accuracy of root canal reamers. This structure utilizes the ramp angle to naturally divert instruments in the feed container to the composite sieve inlet. Gravity counteracts friction between instruments, effectively eliminating adhesion caused by surface spiral textures (such as the threaded structure of nickel-titanium instruments). The gradual transition design between the ramp end and the sieve inlet creates a size-sensitive sorting mechanism—shorter instruments preferentially slide into the longitudinal channel along the ramp under vibration, while longer instruments are intercepted by the guide ramp end due to length limitations, achieving initial grading and screening.

[0018] Preferably, the linear guide mechanism includes at least two linear slide rail assemblies symmetrically arranged on opposite sides of the screening base plate.

[0019] The symmetrically distributed linear guide rail assembly, through a multi-point constraint mechanism, effectively suppresses non-axial displacement of the screening base plate during vibration, ensuring the stability of the sorting trajectory. The low friction coefficient design of the guide rail reduces energy loss while allowing efficient transmission of high-frequency vibrations, avoiding vibration attenuation caused by mechanical damping. The symmetrical layout also balances the force distribution of the screening mechanism under complex vibration modes, extending the service life of the guide components. Furthermore, the adjustable preload design of the guide rail assembly can adapt to sorting requirements under different load conditions, further enhancing the equipment's adaptability.

[0020] Preferably, an elastic connection assembly is provided between the vibration table and the base, and the exciter is fixed to the bottom of the vibration table.

[0021] The flexible connection assembly buffers vibration transmission, reducing the mechanical impact of the equipment on the base and surrounding environment. The structural design, employing high-damping elastic materials (such as rubber or composite springs), retains the high-frequency excitation characteristics of the vibrating table while avoiding the resonance risks associated with rigid connections. The layout of the vibrator fixed to the bottom of the vibrating table optimizes the utilization of vibration energy, ensuring uniform vibration excitation for the screening mechanism. This design also reduces the impact of external interference on sorting accuracy by isolating the mechanical coupling between the base and the vibrating table, making it particularly suitable for stable operation in high-cleanliness production environments.

[0022] Preferably, the screening mechanism consists of multiple sets, symmetrically arranged on both sides of the vibrating table, with each set of screening mechanisms corresponding to an independent feeding container and a collection unit.

[0023] The parallel layout of symmetrical multi-group screening mechanisms enables simultaneous multi-channel sorting, significantly increasing the equipment's processing capacity. Each screening mechanism allows independent adjustment of vibration parameters (such as amplitude and frequency) to adapt to the sorting needs of different batches or models of equipment, improving equipment flexibility. The independent feed container and collection unit design avoids the risk of material contamination, ensuring the traceability of sorting results. Furthermore, the symmetrical structure balances the overall center of gravity of the equipment, reducing wear on the mechanical structure due to vibration and extending the lifespan of critical components. This design is particularly suitable for high-efficiency sorting operations in large-scale production scenarios.

[0024] Preferably, the exciter is configured to generate multidimensional composite vibrations that include a lateral vibration component.

[0025] Multidimensional composite vibration, by superimposing lateral and longitudinal vibration components, simulates the dynamic disturbance effect in manual sorting, significantly improving sorting sensitivity. The lateral vibration component forces the instrument to undergo lateral displacement within the sieve channel, enhancing the size screening effect; the longitudinal vibration component accelerates the axial movement of the instrument, shortening the sorting cycle. The multidimensional vibration mode can also adapt to the sorting requirements of instruments with different surface characteristics (such as smooth or threaded structures) by adjusting the amplitude-frequency characteristics of the components. Furthermore, this design reduces instrument jamming that may occur with a single vibration direction, ensuring the continuity and reliability of the sorting process.

[0026] Preferably, the collection unit includes a collection funnel connected to the outlet of the composite screen channel, and a split storage bin detachably connected below the collection funnel.

[0027] The modular storage bins feature quick-release interfaces for rapid replacement, reducing downtime and improving the continuity of sorting operations. The gradually expanding structure of the collection funnel guides instruments to fall evenly into the bin, preventing blockages or instrument damage caused by accumulation. The sealed design of the modular storage bins also prevents external contamination of sorted instruments, meeting the high cleanliness requirements of medical device manufacturing. Furthermore, the expandable storage capacity supports batch collection in continuous production modes, reducing the frequency of manual intervention.

[0028] Preferably, the feed container includes a limiting baffle assembly surrounding the composite screen channel.

[0029] The limiting baffle assembly controls the feeding rate and distribution range of the equipment through an adjustable fence structure, preventing screen overload caused by excessive feeding. The baffle's tilt angle and vibration direction are designed in tandem to guide the equipment into the screening area in an orderly manner, avoiding disorderly accumulation that could interfere with sorting accuracy. This assembly can also be adapted to different sizes of equipment packaging containers by replacing baffles of different heights, improving the equipment's versatility. Furthermore, the low-friction coating on the baffle surface reduces the adhesion effect between the equipment and the container wall, ensuring smooth feeding.

[0030] The advantages of this utility model compared to the prior art are:

[0031] This utility model discloses a root canal reamer sorting device that achieves efficient sorting of root canal reamers of different sizes through the coordinated design of a vibration component and a composite sieve channel. The vibration table, driven by a vibrator, generates multidimensional vibrations, causing the instruments to differentiate their movement paths within the composite sieve channel due to size differences. Shorter instruments pass through the sieve channel gaps and enter the collection unit due to gravity and vibration, while longer instruments are physically blocked and retained at the top of the sieve channel. This sorting mechanism avoids the subjective errors of traditional manual sorting, significantly improving sorting accuracy and efficiency, and is particularly suitable for quality control in large-scale production by medical device manufacturers. Furthermore, the structural design of the composite sieve channel balances sorting sensitivity and equipment compactness, adapting to the grading requirements of different instrument models while reducing the risk of material jamming, ensuring the continuity and stability of the sorting process. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a structural diagram of the root canal enlarging needle sorting device according to Embodiment 1 of this utility model.

[0034] Figure 2 This is an exploded view of the root canal enlarging needle sorting device of Embodiment 1 of this utility model.

[0035] Figure 3 This is a structural diagram of the screening seat body in Embodiment 1 of this utility model.

[0036] Figure 4This is a structural diagram of the screening seat from another perspective of Embodiment 1 of this utility model.

[0037] Figure 5 This is a schematic diagram of the composite screen channel in Embodiment 1 of this utility model.

[0038] Figure 6 This is a schematic diagram of the composite screen channel in Embodiment 2 of this utility model.

[0039] Figure 7 This is a schematic diagram of the composite screen channel in Embodiment 3 of this utility model.

[0040] Labeling Explanation: Base (1), Vibration Assembly (2), Vibration Table (21), Vibrator (22), Elastic Connection Assembly (23), Screening Mechanism (3), Longitudinal Channel (31), Transverse Channel (32), Gradient Guide Section (321), Composite Screen Channel (33), Screening Seat (34), Guide Incline (341), Screening Bottom Plate (35), Linear Slide Rail Assembly (36), Feed Container (4), Limiting Baffle Assembly (41), Collection Funnel (5), Right Angle Transition Structure (6), Guide Incline (61), Guide Protrusion (62). Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0043] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this application, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0045] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0046] This embodiment provides a way to label the components in the text below according to the above labeling rules, while ensuring that the text remains completely unchanged. Example

[0047] A root canal reamer needle sorting device includes a base 1, a vibration assembly 2 disposed on the base 1, a sieving mechanism 3 fixed to a vibration table 21, a feed container 4 disposed above the sieving mechanism 3, and a collection unit located below the sieving mechanism 3; the vibration assembly 2 includes a vibration table 21 and an exciter 22 that drives the vibration table 21; the sieving mechanism 3 is provided with a composite sieve channel 33 including a longitudinal channel 31 and a transverse channel 32; wherein, the gap structure of the composite sieve channel 33 is such that, driven by the exciter 22, short-sized instruments can enter the collection unit through the composite sieve channel 33, while long-sized instruments are retained in the upper part of the composite sieve channel 33.

[0048] This equipment addresses key technological pain points in the precision manufacturing of root canal reamers in the medical device industry through in-depth innovation. In the post-polishing processing stage, root canal reamers often form a high-density mixture with micron-sized polishing steel needles (0.3mm in diameter × 5mm in length). Traditional manual sorting suffers from multiple bottlenecks, including low efficiency, poor accuracy, and high labor costs. Based on this, this device creatively adopts a dual-mode collaborative technology of "vibration excitation + geometric sieving," equipped with a self-designed sieving system, achieving a breakthrough in the intelligent grading of materials with the same diameter (≥0.6mm) but different lengths (21-31mm). Its core mechanism lies in the generation of a three-dimensional composite vibration field by a precisely calibrated vibration motor, driving the mixed materials to produce differentiated trajectories within a topology-optimized composite sieve channel. When the material group moves along the longitudinal sieve channel, polishing steel needles ≤5mm in length can accurately penetrate the sieve gaps and enter the lower collection bin under the coupling effect of vibration acceleration and gravity; while root canal reamers ≥21mm in length cannot pass through the sieve channel and are retained. This technical solution has successfully overcome the technical challenges of micron-sized slender materials being prone to entanglement and clogging. Clinical production verification has shown that it achieves high cleanliness in a single sorting process, significantly improves efficiency compared to traditional manual screening, and effectively reduces labor costs.

[0049] In this embodiment, the longitudinal channel 31 and the transverse channel 32 of the composite sieve channel 33 form a right-angle transition structure 6.

[0050] The right-angle transition structure 6 optimizes the smoothness of the sorting path by guiding the movement trajectory of the instruments. The longitudinal channel 31 utilizes gravity to rapidly move the instruments downwards, while the right-angle turn in the transverse channel 32 forces the instruments to change their direction of movement through vibrational inertia, thereby enhancing the size screening effect. This structure, on the one hand, extends the residence time of the instruments within the sieve channel, increasing screening opportunities; on the other hand, it effectively distinguishes instruments of different lengths through the natural sorting effect of the path turn. The right-angle transition 6 also reduces the risk of instrument accumulation that may occur due to the curved surface design inside the sieve channel, making it particularly suitable for sorting slender metal instruments. Furthermore, this design simplifies the sieve channel manufacturing process, reduces manufacturing costs, and facilitates subsequent maintenance and cleaning.

[0051] In this embodiment, the screening mechanism 3 includes a screening base 34 and a screening bottom plate 35. The composite screen channel 33 is disposed through the screening base 34. The screening bottom plate 35 is connected to the vibrating table 21 through a linear guide mechanism. The screening bottom plate 35 is provided with a material guiding channel that communicates with the composite screen channel 33.

[0052] The modular screening mechanism 3 achieves functional zoning and rapid maintenance through its split design. The separate structure of the screening base 34 and the base plate 35 allows for individual replacement or adjustment of screen parameters such as gap width and channel angle without the need for overall equipment disassembly, significantly reducing downtime. The linear guide mechanism 36 ensures a rigid connection between the screening base plate 35 and the vibrating table 21, while absorbing lateral stress generated by multi-dimensional vibration to prevent screen deformation. The precise alignment design of the material guide channel and the composite screen channel 33 ensures seamless connection from screening to collection, reducing material loss during the sorting process. In addition, this structure supports rapid switching between multiple specifications of screening base plates 35, meeting the needs of flexible production.

[0053] In this embodiment, a guide slope 341 is also provided on the screening seat 34 to guide the short-sized and long-sized instruments in the feed container 4 into the composite screen channel 33.

[0054] The guide ramp 341, through the combined effect of geometric guidance and vibration, significantly optimizes the sorting efficiency and accuracy of root canal retractors. This structure utilizes the ramp angle to naturally divert instruments in the feed container 4 to the inlet of the composite sieve channel 33. Gravity counteracts the friction between instruments, effectively eliminating adhesion caused by surface spiral textures such as the threaded structure of nickel-titanium instruments. The gradual transition design between the ramp end and the sieve inlet creates a size-sensitive sorting mechanism—shorter instruments preferentially slide into the longitudinal channel 31 along the ramp under vibration, while longer instruments are intercepted at the end of the guide ramp 341 due to length limitations, achieving preliminary grading and screening.

[0055] In this embodiment, the linear guide mechanism 36 includes at least two linear slide rail assemblies 36 symmetrically arranged on opposite sides of the screening base plate 35.

[0056] The symmetrically distributed linear guide rail assembly 36, through a multi-point constraint mechanism, effectively suppresses the non-axial displacement of the screening base plate 35 during vibration, ensuring the stability of the sorting trajectory. The low friction coefficient design of the guide rail reduces energy loss while allowing efficient transmission of high-frequency vibrations, avoiding vibration attenuation caused by mechanical damping. The symmetrical layout also balances the force distribution of the screening mechanism 3 under complex vibration modes, extending the service life of the guide assembly. Furthermore, the adjustable preload design of the guide rail assembly 36 can adapt to sorting requirements under different load conditions, further improving the equipment's adaptability.

[0057] In this embodiment, an elastic connection assembly 23 is provided between the vibration table 21 and the base 1, and the exciter 22 is fixed to the bottom of the vibration table 21.

[0058] The elastic connection assembly 23 reduces the mechanical impact of the equipment on the base 1 and the surrounding environment by buffering vibration transmission. The structural design, employing high-damping elastic materials such as rubber or composite springs, retains the high-frequency excitation characteristics of the vibrating table 21 while avoiding the resonance risk caused by rigid connections. The layout of the vibrator 22 fixed to the bottom of the vibrating table 21 optimizes the utilization rate of vibration energy, ensuring that the screening mechanism 3 receives uniform vibration excitation. This design also reduces the impact of external interference on sorting accuracy by isolating the mechanical coupling between the base 1 and the vibrating table 21, making it particularly suitable for stable operation in high-cleanliness production environments.

[0059] In this embodiment, there are multiple screening mechanisms 3, symmetrically arranged on both sides of the vibrating table 21. Each screening mechanism 3 is equipped with an independent feeding container 4 and a collection unit.

[0060] The parallel layout of symmetrical multi-group screening mechanisms 3 enables multi-channel synchronous sorting, significantly increasing the equipment's processing capacity. Each screening mechanism 3 can independently adjust vibration parameters such as amplitude and frequency to adapt to the sorting needs of different batches or models of equipment, improving equipment flexibility. The design of independent feed containers 4 and collection units avoids the risk of material mixing and ensures the traceability of sorting results. In addition, the symmetrical structure balances the overall center of gravity of the equipment, reducing wear on the mechanical structure caused by vibration and extending the life of key components. This design is particularly suitable for high-efficiency sorting operations in large-scale production scenarios.

[0061] In this embodiment, the exciter 22 is configured to generate multidimensional composite vibrations that include lateral vibration components.

[0062] Multidimensional composite vibration, by superimposing lateral and longitudinal vibration components, simulates the dynamic disturbance effect in manual sorting, significantly improving sorting sensitivity. The lateral vibration component forces the instrument to undergo lateral displacement within the sieve channel, enhancing the size screening effect; the longitudinal vibration component accelerates the axial movement of the instrument, shortening the sorting cycle. The multidimensional vibration mode can also adapt to the sorting requirements of instruments with different surface characteristics, such as smooth or threaded structures, by adjusting the amplitude-frequency characteristics of the components. Furthermore, this design reduces instrument jamming that may occur with a single vibration direction, ensuring the continuity and reliability of the sorting process.

[0063] In this embodiment, the collection unit includes a collection hopper 5 connected to the outlet of the composite screen channel 33, and a split storage bin detachably connected to the bottom of the collection hopper 5.

[0064] The modular storage bins feature quick-release interfaces for rapid replacement, reducing downtime and improving the continuity of sorting operations. The gradually expanding structure of the collection funnel 5 guides instruments to fall evenly into the bin, preventing blockages or instrument damage caused by accumulation. The sealed design of the modular storage bins also prevents external contamination of sorted instruments, meeting the high cleanliness requirements of medical device manufacturing. Furthermore, the expandable storage capacity supports batch collection in continuous production modes, reducing the frequency of manual intervention.

[0065] In this embodiment, the feed container 4 includes a limiting baffle assembly 41 surrounding the composite screen channel 33.

[0066] The limiting baffle assembly 41 controls the feeding rate and distribution range of the instruments through an adjustable fence structure, preventing screen overload caused by excessive feeding. The baffle's tilt angle and vibration direction are designed in tandem to guide the instruments into the screening area in an orderly manner, avoiding disorderly accumulation that could interfere with sorting accuracy. This assembly can also be adapted to different sizes of instrument packaging containers by replacing baffles of different heights, improving the equipment's versatility. In addition, the low-friction coating on the baffle surface reduces the adhesion effect between the instruments and the container wall, ensuring smooth feeding. Example

[0067] In this embodiment, a tapered guide section 321 is provided at the end of the transverse channel 32.

[0068] The tapered guide section 321 accelerates the directional sliding of short-sized instruments by narrowing the channel cross-sectional area, while simultaneously forming a secondary retention barrier for longer instruments. This design not only improves sorting accuracy but also guides instruments into the collection unit through the tapered end structure, avoiding material dispersion or residue caused by excessively wide channels. The tilt angle of the guide section 321 matches the vibration frequency, allowing adjustment of the instrument's sliding speed to accommodate the sorting needs of instruments with different materials or surface roughness. Furthermore, the tapered structure reduces the impact of collisions between instruments and the end of the sieve channel, minimizing surface damage, and providing particularly significant protection for precision medical devices. Example

[0069] In this embodiment, the right-angle transition structure 6 includes a guide slope 61 and a guide protrusion 62 provided on the guide slope 61. The guide slope 61 extends from the bottom of the vertical screen channel to the horizontal screen channel, and the height of the guide protrusion 62 gradually decreases from the vertical screen channel to the horizontal screen channel.

[0070] During the screening process, materials are prone to flow obstruction and blockage at the right-angle transition between vertical and horizontal screen channels. The guide ramp, extending from the bottom of the vertical screen channel towards the horizontal channel, provides a smooth transition path for the material, allowing it to transition more naturally from vertical to horizontal. This reduces material accumulation and jamming caused by right-angle turns, ensuring the continuity and efficiency of the entire screening process. Guide protrusions on the guide ramp further precisely guide the material's direction of travel. Especially for specially shaped instruments like root canal reamers, these protrusions prevent them from shifting or tumbling during the transition, ensuring they follow a predetermined path and improving screening accuracy and stability. Because the height of the guide protrusions gradually decreases from the vertical to the horizontal screen channel, different sizes of root canal reamers experience varying degrees of obstruction when passing through this structure. Longer instruments may be more easily blocked by higher guide protrusions, while shorter instruments can pass over lower ones more smoothly. This further enhances the ability to differentiate between different sizes of screening instruments. During the screening process, longer instruments are more likely to be trapped at the top of the composite screen channel, while shorter instruments more easily pass through and enter the collection unit, thus improving overall screening accuracy. The guide ramps and protrusions rationally guide the material, avoiding violent collisions and friction at right-angle transitions, reducing the impact and wear on the screen channel and surrounding components. This not only helps extend the service life of related equipment components and reduce the frequency of equipment maintenance and replacement, but also reduces the risk of impurities contaminating the material due to component wear, ensuring screening quality.

[0071] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A root canal reamer sorting apparatus, comprising: include Base (1); The vibration assembly (2) provided on the base (1) includes a vibration table (21) and an exciter (22) that drives the vibration table (21). A screening mechanism (3) fixed to a vibrating table (21) is provided with a composite screen channel (33) including a longitudinal channel (31) and a transverse channel (32). Feed container (4); and the collection unit located below the screening mechanism (3); The gap structure of the composite sieve channel (33) is as follows: under the drive of the vibrator (22), short-sized instruments can enter the collection unit through the composite sieve channel (33), while long-sized instruments are trapped in the upper part of the composite sieve channel (33).

2. The root canal reamer sorting device of claim 1, wherein, The longitudinal channel (31) and the transverse channel (32) of the composite screen channel (33) form a right-angle transition structure (6).

3. The root canal reamer sorting device of claim 2, wherein, The right-angle transition structure (6) includes: The guide slope (61) extends from the bottom of the vertical screen channel to the horizontal screen channel; A guide protrusion (62) is provided on the guide slope (61), and the height of the guide protrusion (62) gradually decreases from the vertical screen channel to the horizontal screen channel.

4. The root canal reamer sorting device of claim 1, wherein, The transverse channel (32) is provided with a tapered guide section (321) at its end.

5. The root canal reamer sorting device of claim 1, wherein, The screening mechanism (3) includes a screening seat (34) and a screening bottom plate (35). The composite screen channel (33) is disposed through the screening seat (34). The screening bottom plate (35) is connected to the vibrating table (21) through a linear guide mechanism. The screening bottom plate (35) is provided with a material guiding channel that communicates with the composite screen channel (33).

6. The root canal reamer sorting device of claim 5, wherein, The screening seat (34) is also provided with a guide slope (341) to guide the short-sized and long-sized instruments in the feed container (4) into the composite screen channel (33).

7. The root canal reamer sorting device of claim 5, wherein, The linear guide mechanism includes at least two linear slide rail assemblies (36) symmetrically arranged on opposite sides of the screening base plate (35).

8. The root canal reamer sorting device of claim 1, wherein, The screening mechanism (3) has multiple sets, symmetrically arranged on both sides of the vibrating table (21), and each set of screening mechanism (3) is equipped with an independent feeding container (4) and a collection unit.

9. The root canal reamer sorting device of claim 1, wherein, An elastic connection assembly (23) is provided between the vibration table (21) and the base (1), and the exciter (22) is fixed to the bottom of the vibration table (21).

10. The root canal reamer sorting device of claim 1, wherein, The collection unit includes a collection funnel (5) connected to the outlet of the composite screen channel (33) and a split storage bin detachably connected below the collection funnel (5). The feed container (4) includes a limiting baffle assembly (41) surrounding the composite screen channel (33).

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