A vibration material sorting multi-size nut automatic feeding system

Abstract

The present invention relates to a multi-size nut automatic feeding system for vibration material sorting applied to the field of mechanical equipment technology. The system can realize automatic feeding of nuts of various models, greatly reduce the dependence on manual labor, reduce the occurrence of human errors, and thus effectively reduce a series of problems caused by human errors. In addition, through the setting of a clamping position monitoring unit, on the one hand, during the process of transferring the nut to a nut fixture, the process of each nut clamping by the multi-station fixture can be monitored, so that the inversion of the nut direction can be detected in time and the nut direction can be automatically adjusted, thereby effectively improving the fault tolerance of the nut vibration material sorting process, and the situation of unsuccessful nut clamping can be detected in time. At the same time, the clamping angle of the nut can be further monitored, effectively ensuring that the nut can be stably and correctly placed on the nut fixture, thereby effectively ensuring the stable production of subsequent products.

Description

Technical Field

[0001] The present invention relates to an automatic nut feeding system, in particular to a vibration-processing automatic nut feeding system with multiple sizes applied in the technical field of mechanical equipment. Background Art

[0002] The current process relies on manual placement of nuts onto a nut jig, followed by automated robotic grasping and placement of the nuts onto the injection mold for product production. This approach is not only inefficient but also prone to numerous problems. These include missing nuts, incorrect placement, and incorrect orientation, leading to missing parts that directly impact product functionality and safety. In severe cases, these problems can necessitate extensive rework, significantly increasing time, material consumption, and labor costs, ultimately raising production and manufacturing costs.

[0003] In order to solve the above problems, although there have been devices for automatic nut loading, such as the integrated nut automatic loading equipment disclosed by announcement number CN215969771U, which first vibrates the nuts to sort them, then transports them, and finally places them on the nut fixture through mechanical clamping, its fault tolerance for the vibration sorting process is poor. During the vibration sorting process, there will always be some cases where the front and back sides of the nuts are not distinguished, and the poor fault tolerance causes the nuts finally placed on the nut fixture to be inverted, resulting in the subsequent transfer of the production product to the injection mold, affecting the quality of the product, and there will still be certain rework problems, which will affect the time cost and production manufacturing cost. Summary of the Invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing method of manually placing nuts on a nut fixture is highly dependent on manual labor, prone to human errors, and has low loading efficiency and high labor costs.

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[0006] The multi-station clamp includes a clamp seat and multiple pairs of electric clamps respectively mounted on the lower end of the multi-station clamp via electric slides. The electric clamp includes a main clamp body, a reversing clamp bar corresponding to the end of the main clamp body, and an elastic telescopic rod connected between the main clamp body and the reversing clamp bar. One end of the elastic telescopic rod is connected to the reversing clamp bar via an electric rotating shaft, and the other end of the elastic telescopic rod is movably embedded in the main clamp body.

[0007] The multi-station clamp is also provided with a clamping position monitoring unit, which includes multiple high-definition cameras installed at the lower end of the clamp seat and multiple clamping direction detection strips respectively arranged corresponding to the multiple electric clamps. The clamping direction detection strips include two vertical transparent strips fixedly attached to the corners of the main clamp body and four horizontal transparent strips respectively fixedly attached to the four horizontal corners of the reversing clamp bar, and the vertical transparent strips and the horizontal transparent strips match each other.

[0008] In the above-mentioned multi-size nut automatic feeding system with vibration sorting, fully automated feeding of various types of nuts can be achieved, greatly reducing dependence on manual labor. At the same time, it can also promptly detect the reversal of the nut direction and automatically adjust the nut direction, thereby effectively improving the fault tolerance of the nut vibration sorting process, thereby effectively ensuring the efficient production of products, reducing the occurrence of batch rework, and reducing production costs.

[0009] As a further improvement of the present application, a clamping groove is bored in the middle of the two reversing clamps close to each other, the cross section of the clamping groove is triangular, and each corner of the triangle is rounded.

[0010] As a further improvement of the present application, the vertical transparent strips and the horizontal transparent strips are electrically connected to LED light strips, and the two LED light strips are connected in series on the same circuit. The ends of the vertical transparent strips and the horizontal transparent strips close to each other are respectively provided with fixed electric contacts and moving electric contacts electrically connected to the corresponding LED light strips, and the fixed electric contacts and the moving electric contacts match each other.

[0011] As a further improvement of the present application, the fixed electrical contact includes an insulating layer fixedly connected to the end of the vertical transparent strip, a T-shaped conductive column movably placed in the vertical transparent strip, and an elastic layer fixedly connected between the vertical end face of the T-shaped conductive column and the insulating layer. The horizontal end of the T-shaped conductive column movably penetrates the elastic layer and extends into the insulating layer. The T-shaped conductive column is electrically connected to the LED light strip.

[0012] As a further improvement of the present application, the dynamic electric contact includes a lead gasket and a conductive sheet arranged in the middle of the lead gasket. A conductive groove matching the T-shaped conductive column is opened in the middle of the lead gasket. The conductive sheet is located on the inner wall of the conductive groove, and the conductive sheet is electrically connected to the corresponding LED light strip.

[0013] As a further improvement of the present application, the insulating layer is made of insulating material, the elastic layer is made of elastic material, and there is a magnetic attraction between the vertical end of the T-shaped conductive column and the lead gasket.

[0014] As a further improvement of the present application, an electromagnetic adsorption unit is further provided on the end faces of the main caliper body and the commutation clamp bar that are close to each other. The electromagnetic adsorption unit includes an electromagnetic sheet electrically connected to the main caliper body and a ferromagnetic sheet fixedly embedded in the commutation clamp bar.

[0015] As another improvement of the present application, the vertical transparent strip and the horizontal transparent strip are respectively provided with an embedded groove and a light hole at one end close to each other, a laser emitter is installed on the vertical inner wall of the embedded groove, and a double-headed ball groove is also provided in the middle of the horizontal transparent strip, a smooth ball is placed in the double-headed ball groove, the embedded groove, the laser emitter and the light hole are coaxially arranged, the center point of the smooth ball is lower than the light hole, the highest point of the smooth ball is higher than the light hole, and the smooth ball is made of highly reflective material.

[0016] In summary, it is possible to realize automatic loading of various types of nuts, greatly reduce dependence on manual labor, reduce the occurrence of human errors, and effectively reduce a series of problems caused by human errors. In addition, through the setting of the clamping position monitoring unit, on the one hand, during the process of transferring the nut to the nut fixture, the process of each nut clamping by the multi-station fixture can be monitored, which can not only detect the reversal of the nut direction in time and automatically adjust the nut direction, thereby effectively improving the fault tolerance of the nut vibration material processing process, but also detect the situation of unsuccessful nut clamping in time, and at the same time further monitor the clamping angle of the nut, effectively ensuring that the nut can be stably and correctly placed on the nut fixture, thereby effectively ensuring the stable production of subsequent products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a right-side perspective view of the first embodiment of the present application;

[0018] Figure 2 This is a left-side perspective perspective of the first embodiment of the present application;

[0019] Figure 3 This is a three-dimensional diagram of the transfer platform portion of the first embodiment of the present application;

[0020] Figure 4 A three-dimensional diagram of a multi-position clamp according to a first embodiment of the present application;

[0021] Figure 5 A perspective view of an electric clamp according to a first embodiment of the present application;

[0022] Figure 6 A three-dimensional diagram of the electric clamp during the rotation of the reversing clamp bar according to the first embodiment of the present application;

[0023] Figure 7 A side view of the lower end portion of the electric clamp according to the first embodiment of the present application;

[0024] Figure 8 This is a schematic top view of two electric clamps in the first embodiment of the present application when clamping a nut;

[0025] Figure 9 This is a side view of the electric clamp according to the first embodiment of the present application when clamping a nut normally;

[0026] Figure 10 This is a cross-sectional view of the clamping detection strip portion of the first embodiment of the present application;

[0027] Figure 11 This is a partial schematic diagram of the front of the electric clamp when the reversing clamp bar is horizontal according to the first embodiment of the present application;

[0028] Figure 12 This is a partial schematic diagram of the front of the electric clamp when the reversing clamp bar is tilted according to the first embodiment of the present application;

[0029] Figure 13 This is a partial cross-sectional schematic diagram of the clamping detection strip in the second embodiment of the present application.

[0030] Description of the numbers in the figure:

[0031] 1 Loading equipment body, 2 Vibrating guide plate, 3 Linear guide rail, 4 Transfer platform, 401 Transfer slot, 5 Nut fixture, 61 Four-axis manipulator, 62 Cross-arm manipulator, 7 Multi-station fixture, 71 Main clamp body, 72 Reversing clamp bar, 73 Elastic telescopic rod, 701 Clamping slot, 8 Clamping direction detection strip, 81 Vertical transparent strip, 82 Horizontal transparent strip, 831 T-shaped conductive column, 832 Elastic layer, 833 Insulating layer, 834 Lead gasket, 801 Embedded slot, 802 Laser emitter, 803 Through-hole, 804 Double-headed ball slot, 9 Smooth ball. DETAILED DESCRIPTION

[0032] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0033] The first implementation method:

[0034] Figure 1-3 The figure shows a multi-size nut automatic feeding system with vibration material sorting, comprising a feeding device body 1, a plurality of vibration guide plates 2 are installed on the upper end of the feeding device body 1, a linear guide 3 is fixedly connected to the upper discharge port of the vibration guide plate 2, a transfer platform 4 is provided at the end of the linear guide 3 away from the vibration guide plate 2, an electric slide fixed to the upper end of the feeding device body 1 is provided below the transfer platform 4, the sliding end of the electric slide is fixedly connected to the bottom of the transfer platform 4, and the transfer platform 4 faces the linear guide 3 The upper end of the feeding equipment body 1 is provided with a plurality of evenly distributed transfer slots 401, which match the nut slideway in the linear guide rail 3. The upper end of the feeding equipment body 1 is also fixedly installed with a four-axis manipulator 61 and a cross-arm manipulator 62. The lower ends of the four-axis manipulator 61 and the cross-arm manipulator 62 are fixedly connected to a multi-station fixture 7. The plurality of transfer platforms 4 are all located within the clamping range of the four-axis manipulator 61 and the cross-arm manipulator 62. The upper end of the feeding equipment body 1 is also slidably connected to a plurality of nut fixtures through an electric slide. The plurality of nut jigs 5 are each provided with a station for placing nuts of different types. When loading nuts, nuts of different types are first placed in a plurality of vibration guide trays 2 respectively, and the vibration characteristics thereof are used to automatically arrange the scattered nuts into an orderly state and enter the linear guide rail 3. After reaching the linear guide rail 3, the transfer platform 4 is controlled to move by an electric slide, so that the plurality of transfer slots 401 are opposite to the end of the linear guide rail 3 one by one, and then the nuts in the linear guide rail 3 enter the transfer slot 401. At this time, the corresponding four-axis manipulator 61 and the cross-arm manipulator 62 are used to clamp the plurality of nuts at the corresponding transfer platform 4, and after clamping, they are placed at the corresponding station on the nut jig 5 for standby use, thereby realizing automatic loading of nuts of multiple sizes. Compared with the prior art, the method of manually placing nuts one by one on the nut jig 5 greatly reduces the dependence on manual labor, improves loading efficiency, and effectively reduces human errors, reduces the occurrence of subsequent batch rework, and effectively reduces production costs.

[0035] like Figure 4-5 The multi-station clamp 7 includes a clamping seat and multiple pairs of electric clamps installed at the lower end of the multi-station clamp 7 through electric slides. The electric clamp includes a main clamp body 71, a reversing clamping strip 72 corresponding to the end of the main clamp body 71, and an elastic telescopic rod 73 connected between the main clamp body 71 and the reversing clamping strip 72. One end of the elastic telescopic rod 73 is connected to the reversing clamping strip 72 through an electric rotating shaft, and the other end of the elastic telescopic rod 73 is movably embedded in the main clamp body 71; a clamping position monitoring unit is also provided on the multi-station clamp 7. The middle part of the two reversing clamping strips 72 close to each other is provided with a clamping groove 701. The cross section of the clamping groove 701 is triangular, and each corner of the triangle is rounded, so that the clamping surface of the reversing clamping strip 72 is concave when clamping the nut. Four clamping points can be generated between the nut and the nut when clamping. Compared with the two clamping points clamped by the flat surface, the clamping stability is higher, and it is not easy for the nut to fall during the clamping process, resulting in empty loading.

[0036] The clamping position monitoring unit includes a plurality of high-definition cameras installed at the lower end of the clamp seat and a plurality of clamping direction detection strips 8 respectively arranged corresponding to the plurality of electric clamps. The clamping direction detection strip 8 includes two vertical transparent strips 81 fixedly attached to the corners of the main clamp body 71 and four horizontal transparent strips 82 respectively fixedly attached to the four horizontal corners of the reversing clamp strip 72. The vertical transparent strips 81 and the horizontal transparent strips 82 match each other. The vertical transparent strips 81 and the horizontal transparent strips 82 are electrically connected to LED light strips, and the two LED light strips are connected in series on the same circuit. The vertical transparent strips 81 and the horizontal transparent strips 82 are matched with each other. The ends of the bright strip 81 and the transverse transparent strip 82 close to each other are respectively provided with a fixed electric contact and a dynamic electric contact electrically connected to the corresponding LED light strip, and the fixed electric contact and the dynamic electric contact match each other. After the multi-station fixture 7 clamps the nut, the high-definition camera will first shoot the clamping situation of multiple electric clamps. When empty loading occurs, it can be fed back to the control system of the loading equipment body. The control system can mark it, or remind the staff to put the nut at the corresponding station on the corresponding nut fixture 5 later, thereby eliminating the impact of empty loading on subsequent product production. Figure 6 When the nut is found to be clamped upside down during shooting, the two corresponding reversing clamps 72 can be controlled by the electric shaft to rotate 180 degrees, so that the nut can be turned over together with the nut, so that the nut can be automatically adjusted to be placed upright. Figure 7-9 Then the control system controls the corresponding two main clamp bodies 71 to continue to move closer to each other, so that the elastic telescopic rod 73 is compressed until the main clamp body 71 and the reversing clamp bar 72 are in contact. Figure 11When the reversing clamping strip 72 is still horizontal after rotation, the vertical transparent strip 81 will be aligned with and contact the corresponding horizontal transparent strip 82, so that the clamping detection strip 8 will be illuminated as a whole. At this time, the high-definition camera obtains the image and feeds it back to the control system, which can control the multi-station clamp 7 to continue the normal loading operation and place the clamped multiple nuts on the corresponding stations of the nut fixture 5. In this process, by self-adjusting the nut position, the fault tolerance of the loading process to the vibration loading process of the vibrating guide plate 2 can be effectively improved, thereby effectively avoiding the occurrence of empty loading and inverted nut loading, thereby effectively ensuring the normal, stable and efficient progress of subsequent injection molding products.

[0037] After rotation, when the reversing clamp 72 cannot be tilted horizontally, the clamped nut will tilt accordingly, and it may be difficult to stably load the material to the target position on the nut fixture 5. After loading, the material may fall directly from the nut fixture 5 due to deviation caused by the tilt. In order to detect the above situation in time, the clamping direction detection strip 8 can also monitor the angle of the reversing clamp 72. Figure 12 At this time, the tilt of the reversing clamping strip 72 will cause the vertical transparent strip 81 and the horizontal transparent strip 82 to be misaligned. At this time, the T-shaped conductive column 831 moving toward the horizontal transparent strip 82 under the action of the magnetic force cannot enter the conductive groove and contact the conductive sheet. At this time, the clamping detection strip 8 is difficult to light up. When the high-definition camera captures the image, it can also be fed back to the control system, which can provide early warning to the staff, facilitate timely corresponding maintenance and repair, and reduce the impact on product quality.

[0038] like Figure 10The fixed electric contact includes an insulating layer 833 fixedly connected to the end of the vertical transparent strip 81, a T-shaped conductive column 831 movably placed in the vertical transparent strip 81, and an elastic layer 832 fixedly connected between the vertical end face of the T-shaped conductive column 831 and the insulating layer 833. The horizontal end of the T-shaped conductive column 831 movably passes through the elastic layer 832 and extends into the insulating layer 833. The T-shaped conductive column 831 is electrically connected to the LED light strip. The moving electric contact includes a lead gasket 834 and a conductive sheet arranged in the middle of the lead gasket 834. A conductive groove matching the T-shaped conductive column 831 is opened in the middle of the lead gasket 834. The conductive sheet is located on the inner wall of the conductive groove and is electrically connected to the corresponding LED light strip. The insulating layer 833 is made of insulating material. The elastic layer 8 32 is made of elastic material, and there is a magnetic attraction between the vertical end of the T-shaped conductive column 831 and the lead gasket 834. When the ends of the vertical transparent strip 81 and the horizontal transparent strip 82 are relative to each other, due to the magnetic attraction, the T-shaped conductive column 831 will squeeze the elastic layer 832 and move toward the horizontal transparent strip 82, and embed into the conductive groove and contact the conductive sheet, thereby making the circuit conductive and the LED light bar illuminated. At this time, the vertical transparent strip 81 and the horizontal transparent strip 82 are both lit, and when the reversing clamp 72 is tilted, it is difficult for the T-shaped conductive column 831 to smoothly enter the conductive groove and contact the conductive sheet. At this time, the clamping detection strip 8 is always in an unlit state. The high-definition camera can capture the above picture and feed it back to the control system. The control system determines whether the nut is clamped horizontally based on this difference.

[0039] In addition, during actual implementation, the following settings can be selectively made: the end faces of the main pliers body 71 and the reversing clamp strip 72 that are close to each other are also provided with an electromagnetic adsorption unit, and the electromagnetic adsorption unit includes an electromagnetic sheet electrically connected to the main pliers body 71 and a ferromagnetic sheet fixedly embedded in the reversing clamp strip 72. After clamping, the electromagnetic adsorption unit can be started so that the reversing clamp strip 72 is stably adsorbed on the main pliers body 71, thereby improving the stability when clamping the nut.

[0040] In summary, fully automated loading of various types of nuts can be achieved, which greatly reduces dependence on manual labor, effectively reduces the occurrence of human errors, and thus effectively reduces a series of problems caused by human errors. The automated loading process significantly shortens the nut loading time, effectively ensures the efficient production of products, reduces the occurrence of batch rework, reduces production costs, and improves the overall efficiency of the production line. In addition, through the setting of the clamping position monitoring unit, on the one hand, during the process of transferring the nuts to the nut fixture 5, the process of each nut clamping by the multi-station fixture 7 can be monitored, which can not only timely detect the reversal of the nut direction and automatically adjust the nut direction, thereby effectively improving the fault tolerance of the nut vibration processing process, but also timely detect the situation of unsuccessful nut clamping, and at the same time, the clamping angle of the nut can be further monitored, effectively ensuring that the nut can be stably and correctly placed on the nut fixture 5, thereby effectively ensuring the stable production of subsequent products.

[0041] Second implementation method:

[0042] This embodiment is based on the first embodiment, with the specific arrangement of the vertical transparent strips 81 and the horizontal transparent strips 82 changed, while the rest of the arrangement remains the same as the first embodiment.

[0043] In this embodiment, the transverse transparent strip 82 is made of a light-conducting transparent material.

[0044] Figure 13 As shown, in the figure, a represents a laser beam, and an embedded groove 801 and a light hole 803 are respectively bored at one end of the vertical transparent strip 81 and the horizontal transparent strip 82 close to each other. A laser emitter 802 is installed on the vertical inner wall of the embedded groove 801, and a double-headed ball groove 804 is also bored in the middle of the horizontal transparent strip 82. A smooth ball 9 is placed in the double-headed ball groove 804. The embedded groove 801, the laser emitter 802 and the light hole 803 are coaxially arranged. The center point of the smooth ball 9 is lower than the light hole 803, and the highest point of the smooth ball 9 is higher than the light hole 803. The smooth ball 9 is made of a highly reflective material. When the vertical transparent strip 81 and the horizontal transparent strip 82 are aligned, the vertical transparent strip 81 and the horizontal transparent strip 82 are aligned. When coaxial, the laser beam emitted by the laser emitter 802 will diffract through the light hole 803 and illuminate the smooth ball 9, and the light is not perpendicular to the smooth ball 9, and a certain angle is generated, and then reflected on the double-headed ball groove 804 and the horizontal transparent strip 82, so that a light beam can be transformed into multiple broken line-shaped beams, and the reversing clamping strip 72 is tilted, so that when the vertical transparent strip 81 and the horizontal transparent strip 82 are not coaxial, the horizontal transparent strip 82 is difficult to produce the above phenomenon. The high-definition camera can also capture two different image information, which is convenient for the control center to understand the nut loading situation in real time and realize real-time monitoring of the nut clamping and loading process.

[0045] Compared with the first embodiment, this embodiment does not need to ensure that the vertical transparent strip 81 and the horizontal transparent strip 82 are in contact before and after clamping the nut, and can detect whether the reversing clamping strip 72 is tilted. In addition, the detection process is real-time detection, which facilitates the system to detect abnormal situations in time and take corresponding measures, thereby further improving the stable feeding of the nut, reducing the occurrence of abnormal feeding of the nut, and effectively ensuring product quality.

[0046] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A vibration material sorting multi-size nut automatic feeding system, characterized by: The invention comprises a feeding device body (1), wherein a plurality of vibrating material guide plates (2) are installed at the upper end of the feeding device body (1), a linear guide rail (3) is fixedly connected to the upper discharge port of the vibrating material guide plate (2), a transfer platform (4) is arranged at the end of the linear guide rail (3) away from the vibrating material guide plate (2), a first electric slide fixed to the upper end of the feeding device body (1) is arranged below the transfer platform (4), a sliding end of the first electric slide is fixedly connected to the bottom of the transfer platform (4), and a plurality of evenly distributed transfer slots (401) are cut toward the upper end of the linear guide rail (3), and the transfer The slot (401) matches the nut slideway in the linear guide rail (3), and a four-axis manipulator (61) and a cross-arm manipulator (62) are fixedly installed on the upper end of the feeding equipment body (1). The lower ends of the four-axis manipulator (61) and the cross-arm manipulator (62) are fixedly connected to a multi-station fixture (7). The plurality of transfer platforms (4) are located within the clamping range of the four-axis manipulator (61) and the cross-arm manipulator (62). The upper end of the feeding equipment body (1) is also slidably connected to a plurality of nut fixtures (5) via a second electric slide, and the plurality of nut fixtures (5) are provided with stations for placing nuts of different models. The multi-station clamp (7) comprises a clamp seat and a plurality of pairs of electric clamps respectively mounted on the lower end of the multi-station clamp (7) via a third electric slide, the electric clamp comprising a main clamp body (71), a reversing clamp bar (72) corresponding to the end of the main clamp body (71), and an elastic telescopic rod (73) connected between the main clamp body (71) and the reversing clamp bar (72), one end of the elastic telescopic rod (73) being connected to the reversing clamp bar (72) via an electric rotating shaft, and the other end of the elastic telescopic rod (73) being movably embedded in the main clamp body (71); The multi-station clamp (7) is also provided with a clamping position monitoring unit, the clamping position monitoring unit comprising a plurality of high-definition cameras mounted at the lower end of the clamp seat and a plurality of clamping direction detection strips (8) respectively arranged corresponding to the plurality of electric clamps, the clamping direction detection strips (8) comprising two vertical transparent strips (81) fixedly attached to the corners of the main clamp body (71) and four horizontal transparent strips (82) respectively fixedly attached to the four horizontal corners of the reversing clamp strip (72), and the vertical transparent strips (81) and the horizontal transparent strips (82) match each other; The vertical transparent strip (81) and the horizontal transparent strip (82) are both electrically connected to an LED light strip, and the two LED light strips are connected in series on the same circuit; the ends of the vertical transparent strip (81) and the horizontal transparent strip (82) that are close to each other are respectively provided with a fixed electric contact piece and a moving electric contact piece that are electrically connected to the corresponding LED light strip, and the fixed electric contact piece and the moving electric contact piece match each other; The fixed electrical contact comprises an insulating layer (833) fixedly connected to the end of the vertical transparent strip (81), a T-shaped conductive column (831) movably placed in the vertical transparent strip (81), and an elastic layer (832) fixedly connected between the vertical end surface of the T-shaped conductive column (831) and the insulating layer (833), the horizontal end of the T-shaped conductive column (831) movably penetrates the elastic layer (832) and extends into the insulating layer (833), and the T-shaped conductive column (831) is electrically connected to the LED light strip; The moving electric contact sheet comprises a lead gasket (834) and a conductive sheet arranged in the middle of the lead gasket (834); a conductive groove matching the T-shaped conductive column (831) is bored in the middle of the lead gasket (834); the conductive sheet is located on the inner wall of the conductive groove, and is electrically connected to the corresponding LED light strip.

2. According to claim 1, a vibration material sorting multi-size nut automatic feeding system is characterized by: A clamping groove (701) is bored in the middle of the two reversing clamping bars (72) close to each other. The cross section of the clamping groove (701) is triangular, and each corner of the triangle is rounded.

3. According to claim 1, a vibration material sorting multi-size nut automatic feeding system is characterized by: The insulating layer (833) is made of insulating material, the elastic layer (832) is made of elastic material, and there is a magnetic attraction between the vertical end of the T-shaped conductive column (831) and the lead gasket (834).

4. According to claim 1, a vibration material sorting multi-size nut automatic feeding system is characterized by: An electromagnetic adsorption unit is also provided on the end surfaces of the main clamp body (71) and the commutation clamp strip (72) that are close to each other. The electromagnetic adsorption unit comprises an electromagnetic sheet electrically connected to the main clamp body (71) and a ferromagnetic sheet fixedly embedded in the commutation clamp strip (72).

5. According to claim 1, a vibration material sorting multi-size nut automatic feeding system is characterized by: An embedded groove (801) and a light hole (803) are respectively formed at the ends of the vertical transparent strip (81) and the horizontal transparent strip (82) that are close to each other. A laser emitter (802) is installed on the vertical inner wall of the embedded groove (801). A double-headed ball groove (804) is also formed in the middle of the horizontal transparent strip (82). A smooth ball (9) is placed in the double-headed ball groove (804). The embedded groove (801), the laser emitter (802) and the light hole (803) are coaxially arranged. The center point of the smooth ball (9) is lower than the light hole (803), the highest point of the smooth ball (9) is higher than the light hole (803), and the smooth ball (9) is made of a highly reflective material.

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