A screw feeder with screening and sorting functions

Abstract

The application belongs to the technical field of automatic feeding equipment and provides a screw feeder with a screening and sorting function, which comprises a feeding platform, a feeding disc arranged on the feeding platform, a work station for placing screws arranged on the feeding disc, a first screening member arranged below the feeding platform and used for sorting long screws, the first screening member comprising a first screening part and a jacking part, the first screening part at least partially blocking the movement path of the long screws, and the jacking part being used for jacking the screws passing through the first screening part from the work station, and a second screening member arranged on the feeding platform and used for sorting short screws, the second screening member comprising a feeding channel and a second screening part, the feeding channel being oppositely provided with a discharging port and the second screening part on both sides in the width direction. The application can realize the rapid screening and sorting of screws by using a mechanical structure, is simple in structure, convenient to operate, does not need to use a height gauge to determine the length of the screws, saves the use and maintenance cost of instruments, and reduces the production cost.

Description

Technical Field

[0001] The present application relates to the technical field of automated feeding equipment, and in particular to a screw feeder with screening and sorting functions. Background Art

[0002] A screw feeder is a type of automated assembly equipment, mainly used to feed screws to the assembly line according to a certain pattern and speed. It can improve production efficiency, reduce manual operations, and ensure assembly quality, so it is widely used in various assembly operations.

[0003] In related technologies, in order to prevent screw mixing, a height gauge is usually added to the screw feeder to judge the length of the screws so as to screen and sort the screws to avoid mixing and affect production. However, the height gauge is easily damaged as a measuring instrument, resulting in high use and maintenance costs and high production costs. Summary of the Invention

[0004] In view of the above shortcomings of the prior art, the purpose of this application is to provide a screw feeder with screening and sorting functions, so as to solve the problem of high cost of the screening and sorting method of the screw feeder in the prior art.

[0005] To achieve the above-mentioned and other related purposes, the present application provides a screw feeder with screening and sorting functions, comprising:

[0006] Loading platform;

[0007] A feed tray is provided on the loading platform, and a station for placing screws is provided on the feed tray. The feed tray can rotate along its own central axis on the loading platform, and the screws are placed on the station and keep synchronous movement with the feed tray;

[0008] a first screening member, disposed below the feeding platform, for sorting long screws, comprising a first screening portion and a lifting portion, wherein the first screening portion at least partially blocks the movement path of the long screws, so that the long screws are blocked by the first screening portion and escape from the workstation while following the movement of the feed tray, and the lifting portion is used to lift the screws that pass through the first screening portion from the workstation;

[0009] A second screening member is arranged on the feeding platform, and is used for sorting short screws. The second screening member comprises a feeding channel and a second screening part. The feeding channel is oppositely arranged with a discharging opening and the second screening part on both sides in the width direction. The screws passing through the first screening part enter the feeding channel and are lifted by the lifting part from the work station. During the movement of the short screws along with the feeding disc, the second screening part protrudes from the movement path of the short screws. The short screws are blocked by the second screening part, and the second screening part pushes the short screws out of the work station and into the discharging opening.

[0010] Optionally, the screws comprise standard screws, long screws and short screws. The standard screws are screws meeting the length requirement. The long screws are screws with a length greater than the length requirement. The short screws are screws with a length less than the length requirement.

[0011] Optionally, the lifting part is arranged as an inclined structure connected with the first screening part. The inclined structure comprises an inclined section and a straight section. The two ends of the inclined section are connected with the straight section and the first screening part respectively.

[0012] Optionally, the second screening part is arranged as a circular-arc-shaped boss structure. The distance between the top surface of the straight section and the top surface of the boss structure is greater than the length of the screw rod of the short screw, and is less than or equal to the length of the screw rod of the standard screw. The distance between the top surface of the straight section and the bottom surface of the boss structure is less than the overall length of the short screw.

[0013] Optionally, the distance between the top surface of the first screening part and the top surface of the feeding disc is greater than or equal to the length of the screw rod of the standard screw, and is less than the length of the screw rod of the long screw.

[0014] Optionally, a window is further arranged on the second screening member and is in communication with the feeding channel. The window is used for checking the screening condition of the short screws.

[0015] Optionally, the screw feeder further comprises a guide groove arranged at the bottom of the feeding platform. The guide groove is used for recycling the long screws and the short screws sorted out.

[0016] Optionally, the first screening part and the feeding platform have an inclined guide surface on the side close to the feeding disc. The long screws are blocked by the first screening part and are separated from the work station. The screw cap of the long screw is hung on the surface of the feeding platform, and falls into the guide groove under the guidance of the guide surface.

[0017] Optionally, the second screening member, the feeding platform, the first screening part and the guide groove are arranged in sequence in layers.

[0018] Optionally, the bottom of the feeding tray is further provided with a driving member for driving the feeding tray to rotate.

[0019] In the screw feeder with screening and sorting functions provided by the application, the screw is first placed on the work station, the feeding tray is rotated, the screw moves with the feeding, the screw of the long screw is blocked by the first screening part of the first screening member and separated from the work station to be sorted out, the short screw and the standard screw are not blocked and continue to move with the feeding tray to enter the feeding channel, the jacking part jacks the short screw and the standard screw from the work station, since the short screw is shorter than the standard screw, the screw cap of the short screw is blocked by the second screening part, the second screening part pushes the short screw out of the work station and into the discharging opening, so that the short screw is sorted out, and the standard screw is not blocked by the second screening part and continues to rotate with the feeding tray, leaving the feeding channel, and the sorting of the standard screw is completed. The mechanical structure can realize the rapid screening and sorting of the screw, the structure is simple, the operation is convenient, the height gauge is not needed for screw length determination, the use and maintenance cost of the instrument is saved, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic view of the screw feeder with screening and sorting functions according to the first embodiment of the application when sorting long screws;

[0021] Figure 2 FIG. 2 is a structural schematic view of the screw feeder with screening and sorting functions according to the first embodiment of the application when sorting standard screws;

[0022] Figure 3 FIG. 3 is a structural schematic view of the first screening member according to the first embodiment of the application;

[0023] Figure 4 FIG. 4 is a structural schematic view of the second screening member from a first perspective according to the first embodiment of the application;

[0024] Figure 5 FIG. 5 is a structural schematic view of the second screening member from a second perspective according to the first embodiment of the application;

[0025] Figure 6 FIG. 6 is a partial structural schematic view of the screw feeder with screening and sorting functions according to the first embodiment of the application when sorting standard screws;

[0026] Figure 7 FIG. 7 is a partial structural schematic view of the screw feeder with screening and sorting functions according to the first embodiment of the application when sorting short screws;

[0027] Figure 8 FIG. 8 is a structural schematic view of the screw feeder with screening and sorting functions according to the second embodiment of the application.

[0028] PART NUMBER EXPLANATION

[0029] 1-loading platform; 2-feeding tray; 3-work station; 4-first screening part; 5-second screening part; 6-feeding channel; 7-window; 8-first screening part; 9-material guide trough; 10-long screw; 11-driving part; 12-standard screw; 13-guide surface; 14-inclined section; 15-straight section; 16-dropping port; 17-second screening part; 18-short screw; 19-limiting part; 20-mounting seat. DETAILED DESCRIPTION

[0030] The following describes the implementation of the present application through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0031] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this application. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application. At the same time, terms such as "front", "back", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of this application. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this application without substantially changing the technical content.

[0032] Example 1: Please refer to Figures 1 to 7 , the present application exemplarily provides a screw feeder with screening and sorting functions, comprising:

[0033] Loading platform 1;

[0034] The feeding tray 2 is arranged on the feeding platform 1. A station 3 for placing screws is provided on the feeding tray 2. The feeding tray 2 can rotate along its own central axis on the feeding platform 1. The screws are placed on the station 3 and keep moving synchronously with the feeding tray 2.

[0035] A first screening member 4 is provided below the feeding platform 1 and is used to sort the long screws 10. The first screening member 4 includes a first screening portion 8 and a lifting portion. The first screening portion 8 at least partially blocks the movement path of the long screws 10. When the long screws 10 follow the movement of the feeding tray 2, they are blocked by the first screening portion 8 and leave the workstation 3. The lifting portion is used to lift the screws that have passed through the first screening portion 8 from the workstation 3.

[0036] The second screening member 5 is arranged on the feeding platform 1, and is used for sorting the short screw 18. The second screening member 5 comprises a feeding channel 6 and a second screening part 17. The feeding channel 6 is oppositely provided with the discharging opening 16 and the second screening part 17 at two sides in the width direction. The screw passing through the first screening part 8 enters the feeding channel 6 and is lifted from the working position 3 by the lifting part. In the process that the short screw 18 moves along with the feeding disc 2, the second screening part 17 protrudes from the movement path of the short screw 18. The short screw 18 is blocked by the second screening part 17. The second screening part 17 pushes the short screw 18 out of the working position 3 and into the discharging opening 16.

[0037] In the mounting structure provided in the application, first, the screw is placed on the working position 3. The screw moves along with the feeding disc 2. The screw of the long screw 10 is blocked by the first screening part 8 of the first screening member 4 and is separated from the working position 3 to be sorted out. The short screw 18 and the standard screw 12 are not blocked and continue to move along with the feeding disc 2 to enter the feeding channel 6. The lifting part lifts the short screw 18 and the standard screw 12 from the working position 3. Since the short screw 18 is shorter than the standard screw 12, the nut of the short screw 18 is blocked by the second screening part 17. The second screening part 17 pushes the short screw 18 out of the working position 3 and into the discharging opening 16, so as to sort out the short screw 18. The standard screw 12 is not blocked by the second screening part 17 and continues to rotate along with the feeding disc 2, leaving the feeding channel 6, and completing the sorting of the standard screw 12. The fast screening and sorting of the screw can be realized by using the mechanical structure. The structure is simple and convenient to operate. The height measuring instrument is not needed to determine the length of the screw. The use and maintenance cost of the instrument is saved, and the production cost is reduced.

[0038] It should be noted that, in the embodiment, the screw comprises the standard screw 12, the long screw 10 and the short screw 18. The standard screw 12 is the screw meeting the length requirement. The long screw 10 is the screw with a length greater than the length requirement. The short screw 18 is the screw with a length less than the length requirement. In the existing notebook computer production, different screws with different lengths are needed for assembly. Different assembly processes have different requirements for the length of the screw. When the screws are mixed, if the screw not meeting the length requirement is used in the assembly, the problems such as the long screw 10 being locked through the boss column and the mainboard are prone to occur. The use of the short screw 18 will affect the assembly production efficiency. Therefore, for a certain assembly process, the screw meeting the length requirement needs to be screened and sorted. The screw meeting the length requirement in the current assembly process is the standard screw 12. The screw that is too long is the long screw 10. The screw that is too short is the short screw 18. The screw feeder provided in the application can screen and sort the standard screw 12 for a certain process. The screw can also be screened and sorted before the assembly process, so as to be convenient for subsequent production and use. This is not limited herein.

[0039] In the embodiment, the lifting part is arranged in an inclined structure connected with the first screening part 8, the inclined structure comprises an inclined section 14 and a flat section 15, two ends of the inclined section 14 are connected with the flat section 15 and the first screening part 8 respectively, specifically, the short screw 18 or the standard screw 12 is not blocked by the first screening part 8, and the short screw 18 or the standard screw 12 is continuously lifted by the inclined section 14, so that the short screw 18 or the standard screw 12 is lifted on the work station 3.

[0040] In some embodiments, the second screening part 17 is arranged in a convex structure in a circular arc shape, the distance between the top surface of the flat section 15 and the top surface of the convex structure is greater than the length of the screw rod of the short screw 18 and less than or equal to the length of the screw rod of the standard screw 12, and the distance between the top surface of the flat section 15 and the bottom surface of the convex structure is less than the overall length of the short screw 18, specifically, after the short screw 18 or the standard screw 12 is lifted by the lifting part, on the flat section 15, the short screw 18 or the standard screw 12 is taken as the bottom surface as the reference surface, when the short screw 18 passes through the convex structure, the nut of the short screw 18 is blocked by the convex structure, the short screw 18 moves along the convex structure and is pushed out of the work station 3 and into the discharge opening 16, while the nut of the standard screw 12 is not blocked by the convex structure, and the standard screw 12 continues to move on the work station 3 to leave the feeding channel 6 following the feeding disc 2.

[0041] In some embodiments, the distance between the top surface of the first screening part 8 and the top surface of the feeding disc 2 is greater than or equal to the length of the screw rod of the standard screw 12 and less than the length of the screw rod of the long screw 10, specifically, the work station 3 is a U-shaped groove with an opening, the screw is placed on the work station 3, the bottom of the nut of the screw is in contact with the surface of the feeding disc 2, and when the long screw 10 moves following the feeding disc 2, the bottom of the nut is taken as the reference surface, since the length of the long screw 10 is greater than that of the standard screw 12, the screw rod of the long screw 10 is blocked by the first screening part 8 and then separated from the work station 3, while the screw rods of the standard screw 12 and the short screw 18 are not blocked by the first screening part 8 and continue to move into the feeding channel 6 following the feeding disc 2.

[0042] It can be understood that the work station 3 on the feeding disc 2 of the present application can be arranged as one or more, and multiple work stations 3 can simultaneously sort the long screw 10, the short screw 18 and the standard screw 12.

[0043] In the above embodiments, the second screening part 5 is further provided with a window 7 in communication with the feeding channel 6, the window 7 is used for checking the screening condition of the short screw 18, and the operator can observe the screening condition of the short screw 18 through the window 7, so as to timely adjust and avoid the blocking of the feeding disc 2.

[0044] In the embodiment, the screw feeder further comprises a guide chute 9 arranged at the bottom of the feeding platform 1, which is used to recover the long screws 10 and short screws 18 sorted out, specifically, the slot of the guide chute 9 corresponds to the positions of the first screening part 8 and the discharge port 16, and is arranged at the bottom of the two, when the long screw 10 or the short screw 18 is separated from the working position 3, it falls into the slot of the guide chute 9 under the action of gravity to complete the recovery.

[0045] In some embodiments, the first screening part 8 and the feeding platform 1 have inclined guide surfaces 13 on the side close to the feeding disc 2, the guide surface 13 of the feeding platform 1 forms a gap at the position close to the first screening part 8, the long screw 10 is blocked by the first screening part 8 and separated from the working position 3 along the guide surface 13 of the first screening part 8, the nut of the long screw 10 is hung on the surface of the feeding platform 1, and under the guidance of the guide surface 13 of the feeding platform 1, it falls into the guide chute 9, specifically, when the long screw 10 is blocked by the first screening part 8 and separated from the working position 3, the nut of the long screw 10 is hung on the surface of the feeding platform 1, the screw of the long screw 10 is guided under the guide surface 13, and under the action of inertia, it slides towards the direction close to the guide chute 9, and finally falls into the slot of the guide chute 9 under the action of gravity.

[0046] In the embodiment, the second screening part 5, the feeding platform 1, the first screening part 4 and the guide chute 9 are arranged in sequence, and the stacking arrangement can reduce the installation space occupied by the screw feeder and make the structure more compact.

[0047] In the embodiment, the bottom of the feeding disc 2 is further provided with a driving part 11 for driving the feeding disc 2 to rotate, specifically, the driving part 11 can be an element such as a motor, a cylinder, etc. which can provide driving force, which is not limited herein.

[0048] Embodiment two: the technical scheme of embodiment two is basically the same as that of embodiment one, and the difference lies in that:

[0049] As Figure 8As shown, in the embodiment, the second screening member 5 is provided with a mounting seat 20 on the side close to the first screening part 8, the mounting seat 20 is provided with a limiting member 19 rotatingly, the limiting member 19 extends from the mounting seat 20 to the gap and close to the feeding tray 2, the limiting member 19 blocks in the gap, and the limiting member 19 and the feeding tray 2 have a gap, in the rotating process of the feeding tray 2, the rotating speed of the feeding tray 2 needs to be adjusted according to the production requirement, if the rotating speed of the feeding tray 2 is too fast, the screw on the work station 3 may be separated from the work station 3 due to the inertia, through the limiting of the limiting member 19, the screw on the work station 3 can be prevented from separating and falling due to the inertia, specifically, the mounting seat 20 can be provided with a torsion spring or a hinged way to connect the limiting member 19 on the mounting seat 20, the limiting member 19 can rotate on the mounting seat 20 to leave the gap or reset, the connecting way of the limiting member 19 and the mounting seat 20 is not limited herein.

[0050] In summary, in the screw feeder with screening and sorting functions provided in the application, the screw is first placed on the work station 3, the feeding tray 2 is rotated, the screw will move with the feeding, the screw of the long screw 10 will be blocked by the first screening part 8 of the first screening member 4 and separated from the work station 3 to be sorted out, the short screw 18 and the standard screw 12 will not be blocked and continue to move with the feeding tray 2 to enter the feeding channel 6, the jacking part will jacking the short screw 18 and the standard screw 12 from the work station 3, since the short screw 18 is shorter than the standard screw 12, the screw cap of the short screw 18 will be blocked by the second screening part 17, the second screening part 17 pushes the short screw 18 out of the work station 3 and into the dropping opening 16, so as to sort out the short screw 18, the standard screw 12 will not be blocked by the second screening part 17 and continue to rotate with the feeding tray 2, leave the feeding channel 6, and complete the sorting of the standard screw 12, the mechanical structure can be used to realize the rapid screening and sorting of the screw, the structure is simple, the operation is convenient, the height gauge is not needed to determine the length of the screw, the use and maintenance cost of the instrument is saved, and the production cost is reduced.

[0051] The above embodiments only exemplarily illustrate the principles and effects of the application, and are not used to limit the application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and category of the application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the application should be covered by the claims of the application.

Claims

1. A screw feeder with screening and sorting function, characterized in that: include: Loading platform; A feed tray is provided on the loading platform, and a station for placing screws is provided on the feed tray. The feed tray can rotate along its own central axis on the loading platform, and the screws are placed on the station and keep synchronous movement with the feed tray; a first screening member, disposed below the feeding platform, for sorting long screws, comprising a first screening portion and a lifting portion, wherein the first screening portion at least partially blocks the movement path of the long screws, so that when the long screws follow the movement of the feed tray, the long screws are blocked by the first screening portion and are separated from the work station, and the lifting portion is used to lift the screws that pass through the first screening portion from the work station; The second screening part is arranged on the feeding platform, and the second screening part is used for sorting short screws. The second screening part includes a feeding channel and a second screening part. The feeding channel is provided with a blanking port and the second screening part on both sides thereof along the width direction. The screws passing through the first screening part enter the feeding channel and are lifted from the work station by the lifting part. In the process of the short screw following the movement of the feeding tray, the second screening part protrudes from the movement path of the short screw, and the nut of the short screw is blocked by the second screening part. The second screening part pushes the short screw out of the work station and into the blanking port.

2. The screw feeder according to claim 1, characterized in that: The screws include standard screws, long screws and short screws. The standard screws are screws that meet the length requirements, the long screws are screws that are longer than the length requirements, and the short screws are screws that are shorter than the length requirements.

3. The screw feeder according to claim 2, characterized in that: The lifting portion is configured as an inclined structure connected to the first screening portion. The inclined structure includes an inclined section and a straight section. Both ends of the inclined section are respectively connected to the straight section and the first screening portion.

4. The screw feeder according to claim 3, characterized in that: The second screening portion is configured as an arc-shaped boss structure, the distance between the top surface of the straight section and the top surface of the boss structure is greater than the screw length of the short screw and less than or equal to the screw length of the standard screw, and the distance between the top surface of the straight section and the bottom surface of the boss structure is less than the overall length of the short screw.

5. The screw feeder according to claim 2, characterized in that: The distance between the top surface of the first screening portion and the top surface of the feed tray is greater than or equal to the screw length of the standard screw and less than the screw length of the long screw.

6. The screw feeder according to claim 2, characterized in that: The second screening member is further provided with a window connected to the feed channel, and the window is used to view the screening status of the short screws.

7. The screw feeder according to claim 2, characterized in that It also includes a material guide trough arranged at the bottom of the feeding platform, and the material guide trough is used to recycle the sorted long screws and the short screws.

8. The screw feeder according to claim 7, characterized in that: The first screening part and the loading platform have an inclined guide surface on the side close to the feeding tray. The long screw is blocked by the first screening part and disengaged from the work station. The nut of the long screw is hung on the surface of the loading platform and falls into the guide trough under the guidance of the guide surface.

9. The screw feeder according to claim 7, characterized in that: The second screening member, the loading platform, the first screening member and the material guide trough are stacked in sequence.

10. The screw feeder according to claim 1, characterized in that The bottom of the feed tray is also provided with a driving member for driving the feed tray.

Images