Vibration feeder for PCB (Printed Circuit Board) elements

Abstract

The invention discloses a vibration feeder for PCB (Printed Circuit Board) elements, which comprises a vibration disc for storing elements, and is provided with a material disc and a spiral track which spirally ascends; the spiral pin groove is formed in the spiral track along the conveying track of the elements and extends to the end point of the spiral track from the starting point or the middle of the spiral track; and the magnetic field generating unit is arranged on the outer side of the vibration disc along the conveying track of the element, and one pin of the element is attracted through magnetic force to penetrate through the spiral pin groove, so that the element rotates to a specified direction when moving on the spiral track. According to the embodiment of the invention, through the combined action of the spiral pin groove formed in the spiral track of the vibration disc and the magnetic field generated by the magnetic field generation unit arranged beside the spiral pin groove, the pins of each element face the same direction, so that the problem that the elements are difficult to output by the vibration disc is solved.

Description

Technical Field

[0001] The invention relates to the field of bending and shearing of metal wires, and in particular to a vibrating feeder for PCB components. Background Art

[0002] Vibrating plates and vibrating feeders are a common type of conveying device for small parts. They use vibration to convey small parts along a specified direction, and then use preset baffles to screen out small parts whose postures do not meet the requirements, so that small parts can move in a specified direction with a specified posture.

[0003] However, vibration trays and vibration feeders are not suitable for components on PCB boards. This is because the components are in the shape of an elongated cylinder, with both ends of the components in the shape of a smooth spherical table, and one end of the component has two elongated pins. These characteristics prevent the components from standing up in the vibration tray. However, when the components are conveyed lying flat, the pins of the components are too long, and adjacent components are easily stuck by each other's pins, making it difficult for the components to turn inside the vibration tray, which in turn makes it difficult for the components to have a posture that meets the requirements. Summary of the invention

[0004] The object of the present invention is to provide a vibrating feeder for PCB components, so as to solve the problem that the components are easily caught by each other's pins when being output by a vibrating disk.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] A vibrating feeder for PCB components comprises: a vibrating plate for storing components, having a material plate and a spiral track that rises in a spiral direction; a spiral pin groove, arranged on the spiral track along the conveying track of the components, extending from the starting point or the middle of the spiral track to the end point of the spiral track; a magnetic field generating unit, arranged on the outer side of the vibrating plate along the conveying track of the components, attracting a pin of the component through the spiral pin groove by magnetic force, so that the component rotates to a specified direction when moving on the spiral track.

[0007] Furthermore, the spiral pin groove has a starting point and an end point, and the starting point of the spiral pin groove passes through the material tray along the horizontal direction.

[0008] Furthermore, the end point of the spiral pin groove passes through the tray in a vertical direction, so that the element stands upright at the end point of the spiral track, and one of the pins is vertically suspended below the bottom wall of the tray.

[0009] Furthermore, when the spiral pin groove passes through the material tray, an opening is formed on the material tray, and the magnetic field generating unit is always arranged on an extension line of the opening direction.

[0010] Furthermore, the magnetic field generating unit comprises a spiral bracket and a plurality of permanent magnets, the spiral bracket is coiled on the outside of the material tray, and the permanent magnets are installed on the spiral bracket in a manner that they can be raised and lowered and detached.

[0011] Furthermore, the magnetic field generating unit also includes a plurality of top screws, which pass through the bracket and are spirally connected to the bracket, each of the top screws corresponds to each of the permanent magnets one by one, and the ends of the top screws abut against the bottom wall and / or side wall of the permanent magnet.

[0012] Furthermore, the end point of the spiral track is connected to a linear track, a linear pin groove connected to the spiral pin groove is formed in the linear track, and the element continues to move along the linear pin groove after reaching the end point of the spiral pin groove. The end point of the spiral bracket is connected to a linear bracket, and the permanent magnet and the top wire are distributed along the linear bracket.

[0013] Furthermore, it also includes a material divider, which includes a material divider plate and a linear drive, wherein the material divider plate can be movably arranged at the end point of the linear track, and the material divider plate is fixedly connected to the actuator of the linear drive, and the linear drive is used to drive the material divider plate to move in a direction perpendicular to the conveying track of the spiral track; the material divider plate is provided with a slot matching the external shape of the element on one side facing the spiral track, and the element can move in a direction parallel to and perpendicular to the linear track to leave the slot.

[0014] Furthermore, it also includes an element flipper, which includes: a magnet mounting plate, a fixed electromagnet and a movable electromagnet, wherein the fixed electromagnet and the movable electromagnet are both mounted on the magnet mounting plate, wherein the movable electromagnet is connected to the magnet mounting plate via a bearing, and the fixed electromagnet is fixedly connected to the magnet mounting plate, and a plurality of the fixed electromagnets are arranged in a fan ring shape with a central angle of 90° along the circumferential direction with the movable electromagnet as the center.

[0015] Furthermore, the fixed electromagnet and the movable electromagnet are both electrically connected to a controller, and the controller is used to sequentially power off the fixed electromagnets from high to low, and to cut off the power to the movable electromagnet when the last fixed electromagnet is powered off, so that the element whose two pins are respectively attracted by the fixed electromagnet and the movable electromagnet swings around the center line of the movable electromagnet to a horizontal posture.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] A vibration feeder for PCB components is provided, which makes the pins of each component face the same direction through the combined effect of a spiral pin groove arranged on a spiral track of a vibration disk and a magnetic field generated by a magnetic field generating unit arranged beside the spiral pin groove, thereby solving the problem that components are difficult to be output by the vibration disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 is a three-dimensional diagram of a magnetic field generating unit of the present invention;

[0021] Figure 3 A top view of the present invention;

[0022] Figure 4 for Figure 3 Cross-sectional view in the AA direction;

[0023] Figure 5 A perspective view of a material distributor and a component turner of the present invention;

[0024] Figure 6 Schematic diagrams of two different working conditions of the distributor of the present invention;

[0025] Figure 7 A three-dimensional diagram of a component flipper of the present invention;

[0026] The numbers in the figure represent the following:

[0027] 1-vibration plate; 11-material plate; 12-spiral track; 13-spiral pin groove; 2-magnetic field generating unit; 21-spiral bracket; 22-permanent magnet; 23-top screw; 3-element; 31-pin; 4-material distributor; 41-material distributor plate; 42-card slot; 43-linear drive; 44-cylinder mounting plate; 5-element flipper; 51-magnet mounting plate; 52-fixed electromagnet; 53-movable electromagnet; 54-bearing. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In order to solve the problem that components are easily stuck by each other's pins when they are output by the vibration plate, the following provides a vibration feeder for PCB components, combined with Figure 1 and Figure 2 .

[0030] The vibrating feeder includes:

[0031] The vibrating plate 1 comprises a material plate 11 and a spiral track 12 which rises in a spiral direction, wherein the material plate 11 is used for storing the components 3;

[0032] The spiral pin groove 13 is arranged on the spiral track 12 along the conveying track of the component 3 and extends from the starting point or the middle of the spiral track 12 to the end point of the spiral track 12;

[0033] The magnetic field generating unit 2 is arranged on the outer side of the vibration disk 1 along the conveying track of the component 3, and attracts a pin 31 of the component 3 through the spiral pin groove 13 by magnetic force, so that the component 3 rotates to a specified direction when moving on the spiral track 12.

[0034] Combination Figures 1 to 4 The working principle of this embodiment is: the component 3 is stored in the material tray 11 of the vibration disk 1, and rises in a spiral along the spiral track 12 through the vibration action of the vibration disk 1. The magnetic field generating unit 2 attracts the pin 31 of the component 3 through magnetic force, so that the component 3 gradually rotates during the rising process, so that one pin 31 passes through the spiral pin groove 13, and the posture of each component 3 is the same at the end of the spiral track 12.

[0035] It should be noted that the material tray 11 and the spiral track 12 are an integrated part, and penetrating the material tray 11 is equivalent to penetrating the spiral track 12 .

[0036] Furthermore, combined with Figure 4 The spiral pin groove 13 has a starting point and an end point, and the starting point of the spiral pin groove 13 passes through the tray 11 in the horizontal direction. This design makes it easy for the pin 31 to pass through the spiral pin groove 13 when the component 3 lies flat inside the spiral track 12.

[0037] However, the spiral pin groove 13 passes through the material tray 11 in the horizontal direction. This design is only applicable to the case where the pins 31 are located at the same end of the component 3. When the pins 31 are located at both ends of the component 3, the component 3 is distributed in a spiral shape along the shape of the spiral pin groove 13 itself, resulting in one of the two pins 31 at both ends of the component 3 diverging outwards and the other pin 31 converging inwards. The pins 31 converging inwards are prone to cross and entanglement, thereby affecting the posture of the component 3.

[0038] In order to solve the above problems, combined Figure 4 The end point of the spiral pin groove 13 passes through the material tray 11 in the vertical direction, so that the component 3 stands up at the end point of the spiral track 12, one pin 31 is vertically suspended below the bottom wall of the material tray 11, and the other pin 31 stands above the component 3. This design allows the pin 31 away from the spiral pin groove 13 to be parallel to each other when the component 3 stands inside the spiral track 12, thereby reducing the impact of the crossing of the pins 31 on the posture of the component 3.

[0039] Combination Figure 4 When the opening of the spiral pin groove 13 is horizontal, the magnetic field generating unit 2 is beside the spiral pin groove 13 at the same height; when the opening of the spiral pin groove 13 is vertically downward, the magnetic field generating unit 2 is located directly below the spiral pin groove 13. It can be seen that the magnetic field generating unit 2 is always set on the extension line of the opening direction of the spiral pin groove 13, so that the pin 31 is always subjected to the attraction parallel to the opening direction of the spiral pin groove 13.

[0040] Combination Figure 2 , Figure 4 The magnetic field generating unit 2 includes a spiral bracket 21, a plurality of permanent magnets 22 and a plurality of top screws 23. The spiral bracket 21 is coiled on the outer side of the material tray 11. The permanent magnets 22 are installed on the spiral bracket 21 in a manner that they can be raised and lowered and detached. The top screws 23 pass through the spiral bracket 21, and the top screws 23 are connected to the spiral bracket 21 through threads. Each top screw 23 corresponds to each permanent magnet 22 one by one, and the end of the top screw 23 abuts against the bottom wall or side wall of the permanent magnet 22.

[0041] The top screw 23 is used to adjust or constrain the position of the permanent magnet 22. Figure 2 and Figure 4 In the figure, the top screw 23 is exemplarily placed under the permanent magnet 22. The height of the permanent magnet 22 can be adjusted by rotating the top screw 23. However, the top screw 23 can also be placed beside the permanent magnet 22. Rotating the top screw 23 can constrain the position of the permanent magnet 22. The user changes the suction force of each permanent magnet 22 on the pin 31 by changing the height of the permanent magnet 22, so that the element 3 in the spiral track 12 can move smoothly through the vibration of the vibration disk 1.

[0042] It is important to emphasize that:

[0043] The top wall of the spiral track 12 is inclined, so the element 3 inside the vibration disk 1 cannot stand up without external force. The standing of the element 3 depends on the magnetic field generating unit 2 applying a vertical downward force to the pin 31 to keep the element 3 in a vertical position.

[0044] In addition, the vibration disk 1 also includes a linear track 14 connected to the end point of the spiral track 12. A linear pin groove 15 connected to the spiral pin groove 13 is formed in the linear track 14. After the component 3 reaches the end point of the spiral pin groove 13, it continues to be transported along the linear pin groove 15. The linear track 14 is used to make the end point of the travel of the component 3 as far away from the vibration disk 1 as possible to facilitate the installation of other equipment here.

[0045] Correspondingly, the end point of the spiral bracket 21 is connected to a linear bracket 24 , and the permanent magnet 22 and the top screw 23 are also distributed along the linear bracket 24 .

[0046] On the other hand, after solving the problem of how to use the vibration plate 1 to transport the component 3, it is also necessary to solve the problem of how the component 3 leaves the vibration plate 1. In order to solve this problem, Figure 5 .

[0047] Combination Figure 6 The vibrating feeder further includes a distributor 4 , which includes a distributor plate 41 and a linear drive 43 .

[0048] Among them, the dividing plate 41 can be movably arranged at the end point of the linear track 14, the linear driver 43 is fixedly connected to the frame, the dividing plate 41 is fixedly connected to the actuator of the linear driver 43, and the linear driver 43 is used to drive the dividing plate 41 to move along the direction of the conveying track perpendicular to the linear pin groove 15.

[0049] A slot 42 matching the external shape of the component 3 is provided on one side of the dividing plate 41 facing the linear track 14 . In the slot 42 , the component 3 can move along the length direction of the linear track 14 to leave the slot 42 , and can also move along the length direction perpendicular to the linear track 14 to leave the slot 42 .

[0050] Combination Figure 6 , the working principle of distributor 4 is:

[0051] Step 1: Combine Figure 6 (A) When the dividing plate 41 is located at the starting point of the stroke, the component 3 can be transferred to the dividing plate 41 through the spiral track 12, and the component 3 is constrained by the clamping groove 42 at this time.

[0052] Step 2: Combine Figure 6(B) When the dividing plate 41 is at the end of the stroke, the outlet of the spiral track 12 is blocked by the dividing plate 41, and the element 3 located on the dividing plate 41 is transferred to the downstream equipment.

[0053] On the other hand, the divider 4 enables the component 3 to leave the vibration plate 1 in a vertical posture. When the component 3 needs to leave the vibration plate 1 in a horizontal posture, the component 3 at the outlet of the divider 4 needs to be turned over.

[0054] Combination Figure 5 , Figure 7 The vibrating feeder further includes a component flipper 5 , which includes a magnet mounting plate 51 , a fixed electromagnet 52 and a movable electromagnet 53 .

[0055] The fixed electromagnet 52 and the movable electromagnet 53 are both mounted on the magnet mounting plate 51, wherein the movable electromagnet 53 is connected to the magnet mounting plate 51 via a bearing 54, and the fixed electromagnet 52 is fixedly connected to the magnet mounting plate 51. A plurality of fixed electromagnets 52 are arranged in a fan ring shape with a central angle of 90° along the circumferential direction with the movable electromagnet 53 as the center.

[0056] Among them, one of the fixed electromagnets 52 located at both ends of the plurality of fixed electromagnets 52 is located directly above the movable electromagnet 53 , and another of the fixed electromagnets 52 located at both ends of the plurality of fixed electromagnets 52 is located beside the movable electromagnet 53 at the same height.

[0057] Combination Figure 5 , the working principle of the component flipper 5 is:

[0058] Step 1: The linear drive 43 is driven close to the magnet mounting plate 51, and the component 3 is pushed toward the magnet mounting plate 51 by the dividing plate 41. The pin 31 at the top of the component 3 is attracted by the fixed electromagnet 52, and the pin 31 at the bottom of the component 3 is attracted by the movable electromagnet 53.

[0059] Step 2: The linear drive 43 drives the dividing plate 41 to reset, the dividing plate 41 is separated from the component 3 on the magnet mounting plate 51 , and the next component 3 is transferred to the slot 42 of the dividing plate 41 .

[0060] Step 3: Several fixed electromagnets 52 are energized in sequence along their arrangement order, and only one electromagnet is energized at the same time, so that the pin 31 at one end of the component 3 is attracted by each fixed electromagnet 52 in turn to perform a circular motion. When the pin 31 is transferred to the last fixed electromagnet 52, the component 3 is transferred from a vertical posture to a horizontal posture.

[0061] Step 4: The fixed electromagnet 52 and the movable electromagnet 53 are powered off simultaneously, and the component 3 falls in a horizontal posture.

[0062] It should be emphasized that Figure 5 A plurality of components 3 are shown on the magnet mounting plate 51 in order to show the movement process of the components 3. At the same time, there is only one component 3 on the magnet mounting plate 51 instead of a plurality of components 3.

[0063] In addition, the linear drive 43 adopts a cylinder. In order to prevent the fixed electromagnet 52 and the movable electromagnet 53 from affecting the metal components inside the cylinder, the linear drive 43 is installed on the cylinder mounting plate 44, and the cylinder mounting plate 44 is parallel to the magnet mounting plate 51 and fixedly connected.

[0064] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A vibrating feeder for PCB components, characterized in that: include: A vibrating plate (1) for storing components (3) having a material plate (11) and a spiral track (12) for spirally ascending; A spiral pin groove (13) is arranged on the spiral track (12) along the conveying track of the component (3), and extends from the starting point or the middle of the spiral track (12) to the end point of the spiral track (12); A magnetic field generating unit (2) is arranged on the outer side of the vibration disk (1) along the conveying track of the element (3), and attracts a pin (31) of the element (3) through the spiral pin groove (13) by magnetic force, so that the element (3) rotates to a specified direction when moving on the spiral track (12).

2. A vibrating feeder for PCB components according to claim 1, characterized in that: The spiral pin groove (13) has a starting point and an end point, and the starting point of the spiral pin groove (13) passes through the material tray (11) in a horizontal direction.

3. A vibrating feeder for PCB components according to claim 2, characterized in that: The end point of the spiral pin groove (13) passes through the material tray (11) in the vertical direction, so that the element (3) stands up at the end point of the spiral track (12), and one of the pins (31) is vertically suspended below the bottom wall of the material tray (11).

4. A vibrating feeder for PCB components according to claim 2 or 3, characterized in that: When the spiral pin groove (13) passes through the material tray (11), an opening is formed on the material tray (11), and the magnetic field generating unit (2) is always arranged on an extension line of the opening direction.

5. A vibrating feeder for PCB components according to claim 1, characterized in that: The magnetic field generating unit (2) comprises a spiral support (21) and a plurality of permanent magnets (22); the spiral support (21) is coiled on the outside of the material tray (11); and the permanent magnets (22) are mounted on the spiral support (21) in a manner that allows them to be lifted and removed.

6. A vibrating feeder for PCB components according to claim 5, characterized in that: The magnetic field generating unit (2) further comprises a plurality of top screws (23), the top screws (23) passing through the bracket and being spirally connected to the bracket, each of the top screws (23) corresponding to each of the permanent magnets (22) one by one, and the ends of the top screws (23) abutting against the bottom wall and / or side wall of the permanent magnet (22).

7. A vibrating feeder for PCB components according to claim 6, characterized in that: The end point of the spiral track (12) is connected to a linear track (14), a linear pin groove (15) connected to the spiral pin groove (13) is formed in the linear track (14), and the element (3) continues to move along the linear pin groove (15) after reaching the end point of the spiral pin groove (13), and the end point of the spiral bracket (21) is connected to a linear bracket (24), and the permanent magnet (22) and the top screw (23) are distributed along the linear bracket (24).

8. A vibrating feeder for PCB components according to claim 7, characterized in that: It also includes a material distributor (4), the material distributor (4) including a material distributor plate (41) and a linear drive (43), the material distributor plate (41) is movably arranged at the end point of the linear track (14), the material distributor plate (41) is fixedly connected to the execution part of the linear drive (43), and the linear drive (43) is used to drive the material distributor plate (41) to move along a direction perpendicular to the conveying track of the spiral track (12); A slot (42) matching the external shape of the element (3) is provided on one side of the dividing plate (41) facing the spiral track (12); the element (3) can move in a direction parallel to and perpendicular to the linear track (14) to leave the slot (42).

9. A vibrating feeder for PCB components according to claim 8, characterized in that: It also includes an element flipper (5), which includes: a magnet mounting plate (51), a fixed electromagnet (52) and a movable electromagnet (53), wherein the fixed electromagnet (52) and the movable electromagnet (53) are both mounted on the magnet mounting plate (51), wherein the movable electromagnet (53) is connected to the magnet mounting plate (51) via a bearing (54), and the fixed electromagnet (52) is fixedly connected to the magnet mounting plate (51), and a plurality of the fixed electromagnets (52) are arranged in a fan ring shape with a central angle of 90° along the circumferential direction with the movable electromagnet (53) as the center.

10. A vibrating feeder for PCB components according to claim 9, characterized in that: The fixed electromagnet (52) and the movable electromagnet (53) are both electrically connected to a controller, and the controller is used to sequentially power off the fixed electromagnets (52) from high to low, and to cut off the power to the movable electromagnet (53) when the last fixed electromagnet (52) is powered off, so that the element (3) whose two pins (31) are respectively attracted by the fixed electromagnet (52) and the movable electromagnet (53) swings around the center line of the movable electromagnet (53) to a horizontal posture.

Images