Flexible feeding mechanism for small hardware in-mold injection

Abstract

This invention relates to the field of feeding mechanism technology and discloses a flexible feeding mechanism for in-mold injection molding of small hardware, comprising: a power distribution cabinet, on the top of which a vibration motor and a frame are fixedly installed; a feeding vibratory plate is fixedly installed at the output end of the vibration motor; a flexible vibratory plate is connected to the top of the frame via a spring; and the discharge end of the feeding vibratory plate faces the flexible vibratory plate. This invention drives two sliding bases to move towards each other along a first sliding groove via a drive source, and a drive component on each sliding base drives a slider to move along a second sliding groove, thereby achieving XY-axis displacement adjustment of four voice coil motors. The position and spacing of the voice coil motors can be flexibly adjusted to match the optimal vibration phase difference according to the vibration requirements of parts with different shapes such as long strips and cylinders. A single mechanism achieves uniform vibration and posture adjustment for various types of parts, significantly reducing equipment space occupation and improving integration.

Description

Technical Field

[0001] This invention relates to the field of feeding mechanism technology, specifically to a flexible feeding mechanism for in-mold injection molding of small hardware. Background Technology

[0002] Generally, in the process of in-mold injection molding of small hardware parts, a feeding mechanism is needed to transport and align the small hardware parts in an orderly manner, so as to accurately deliver the parts to the hardware positioning fixture, and then use a robotic arm to grab and place them into the injection mold, ensuring the continuity and accuracy of the in-mold injection operation.

[0003] During the feeding process, the arrangement and orderly dispersal of parts is a crucial step. However, in actual operation, small hardware parts come in a variety of shapes, including common sheet-like, nail-like, strip-like, and column-like parts with different structural forms. Due to the differences in characteristics, different shapes of parts can only achieve the effect of complete dispersal by matching the corresponding phase difference, thus avoiding problems such as parts stacking, tangling, and jamming. This requires different coordination relationships between the voice coil motor and the flexible vibrating plate.

[0004] Therefore, existing flexible feeding mechanisms for in-mold injection molding of small hardware parts typically have multiple independent feeding units set up on the loading platform of the equipment. Each shape of small hardware part corresponds to an independent flexible vibratory feeder and a matching picking and shooting camera. Then, a four-axis robot goes to different feeding stations in sequence to pick up the corresponding parts. This structural design leads to a significant increase in the overall space occupied by the equipment, which not only wastes production space resources, but also has a low degree of integration. There is a lack of coordination between the independent feeding units, resulting in a large workload for subsequent equipment maintenance and debugging. It also increases the manufacturing cost of the equipment and is difficult to adapt to the production needs of small-batch, multi-variety small hardware parts in-mold injection molding. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a flexible feeding mechanism for in-mold injection molding of small hardware, thereby solving the technical problems in the prior art.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A flexible feeding mechanism for in-mold injection molding of small hardware includes:

[0008] A power distribution cabinet has a vibration motor and a frame fixedly installed on its top. A feeding vibratory plate is fixedly installed at the output end of the vibration motor. A flexible vibratory plate is connected to the top of the frame via a spring. The discharge end of the feeding vibratory plate faces the flexible vibratory plate. A hardware positioning fixture is provided on one side of the flexible vibratory plate. A feeding assembly is provided on the top of the power distribution cabinet. The feeding assembly is used to install the parts inside the flexible vibratory plate onto the hardware positioning fixture.

[0009] The sliding base consists of two sliding bases slidably mounted within a frame. The two sliding bases are driven by a drive source to move towards each other. The bottom plate of the frame has two symmetrically arranged first sliding grooves, in which the two sliding bases are slidably mounted. Each sliding base has two symmetrically arranged second sliding grooves. Each end of the sliding base has a slider, which is slidably mounted within the second sliding groove. Each slider has a fixedly mounted voice coil motor. The output end of the voice coil motor is locked to the bottom of the flexible vibrating plate via a locking assembly. Each sliding base has a drive assembly that drives the sliders to move towards each other.

[0010] As a further aspect of the present invention: the two sliding bases are arranged along the extension direction of the discharge end of the feeding vibratory plate, and a telescopic discharge plate is slidably installed at the bottom of the discharge end of the feeding vibratory plate. The telescopic discharge plate is driven to move by a power component. When the two sliding bases move away from each other, the power component drives the telescopic discharge plate to retract. When the two sliding bases move closer to each other, the power component drives the telescopic discharge plate to extend, so that the part falls on the flexible vibratory plate above the voice coil motor adjacent to the feeding vibratory plate.

[0011] As a further aspect of the present invention: a baffle is rotatably mounted on the feeding vibratory feeder. The baffle is driven to rotate by a first output source. The baffle separates the feeding vibratory feeder into a storage area and a discharge area. The telescopic discharge plate is located in the discharge area. When the first output source drives the baffle to rotate to a horizontal state, the storage area and the discharge area are connected, and the vibration motor is turned on at this time.

[0012] As a further embodiment of the present invention: the driving assembly includes a third slide groove, a movable plate, a connecting rod, a threaded rod, and a synchronization assembly. Each of the sliding bases is provided with a third slide groove. The movable plate is slidably installed in the third slide groove. Connecting rods are rotatably installed at both ends of the movable plate. The two sliders are rotatably connected to the ends of the two connecting rods away from the movable plate, respectively. A threaded rod is rotatably installed on each of the sliding bases. The threaded rod is threadedly connected to the movable plate. The two threaded rods are driven to rotate synchronously by the synchronization assembly.

[0013] As a further embodiment of the present invention: the synchronization component includes a rotating wheel, a square insert rod, and a power component. The two rotating wheels are respectively rotatably mounted on the inner wall of the frame and are symmetrically arranged. The rotating wheels are coaxially arranged with the threaded rods. The two ends of the square insert rod are respectively coaxially fixedly connected to the two rotating wheels. The square insert rod is driven to rotate by the power component. The square insert rod passes through the two threaded rods and is slidably connected to the threaded rods.

[0014] As a further embodiment of the present invention: the power assembly includes a fixed plate, a driven wheel, a driving wheel, and a timing belt. The fixed plate is fixedly installed on the bottom plate of the frame. The driven wheel and the driving wheel are both rotatably installed on the fixed plate. The driving wheel is connected to the driven wheel via the timing belt. The driving wheel is driven to rotate by a second output source. The driven wheel is coaxially arranged with the rotating wheel. The driven wheel is sleeved on a square insert rod, and the two are fixedly connected.

[0015] As a further aspect of the present invention: the connecting component includes a powerful permanent magnet and a magnetically conductive metal sheet. The magnetically conductive metal sheet is fixedly installed at the bottom of the flexible vibrating disk. Each voice coil motor output terminal is fixedly connected to a powerful permanent magnet. When the magnetically conductive metal sheet is energized, the magnetically conductive metal sheet locks with the powerful permanent magnet.

[0016] As a further embodiment of the present invention: the feeding assembly includes a four-axis mechanical gripper, a picking and shooting head, a linear module, and a positioning shooting head. The linear module is fixedly installed on the top of the power distribution cabinet and is located on one side of the flexible vibrating plate. The linear module is used to transport the hardware positioning fixture. The four-axis mechanical gripper is fixedly installed on the top of the power distribution cabinet and is located between the flexible vibrating plate and the linear module. The four-axis mechanical gripper is used to clamp the parts in the flexible vibrating plate and install them onto the hardware positioning fixture. An emergency stop switch and a bracket are fixedly installed on the top of the power distribution cabinet. The picking and shooting head is fixedly installed on the bracket and faces the flexible vibrating plate. The positioning shooting head is fixedly installed on the power distribution cabinet and faces the hardware positioning fixture. An operation panel is fixedly installed on the bracket.

[0017] The beneficial effects of this invention are:

[0018] 1. In this invention, two sliding bases are driven to move towards each other along the first slide groove by a drive source, and the slider is driven to move along the second slide groove by the drive component on each sliding base, so as to realize the XY two-axis displacement adjustment of four voice coil motors. The position and spacing of the voice coil motors can be flexibly adjusted to match the optimal vibration phase difference according to the vibration requirements of parts with different shapes such as long strips and columns. This avoids the problem that traditional multiple independent feeding units cannot adapt to the vibration requirements of multiple types of parts and require separate configuration of flexible vibrating plates and supporting components. The uniform vibration and posture adjustment of multiple types of parts can be achieved through a single mechanism, improving the degree of integration.

[0019] 2. In this invention, the telescopic discharge plate at the discharge end of the feeding vibratory feeder is synchronously extended and retracted by the power component, and the sliding base is arranged in the direction of movement to ensure that the discharge end of the feeding vibratory feeder and the voice coil motor move precisely. This ensures that different types of parts can fall on the effective vibration edge of the flexible vibratory feeder. Combined with the baffle separating the storage area and the discharge area and controlling the part supply, it avoids problems such as part landing point deviation, pile-up leading to ineffective vibration and material jamming. At the same time, there is no need to add multiple sets of feeding vibratory feeders, further improving the integration of the equipment, ensuring the uniformity of part vibration and the consistency of posture, and providing a guarantee for subsequent accurate feeding.

[0020] 3. In this invention, a locking assembly consisting of a magnetically conductive metal sheet and a powerful permanent magnet enables contactless and rapid locking and unlocking of the voice coil motor and the flexible vibrating disk. In conjunction with a magnetic shielding sheet, the magnetic force is blocked from affecting the parts inside the disk, ensuring the stable transmission of the vibration power of the voice coil motor and preventing the magnetic force from interfering with the disintegration of the parts. At the same time, the feeding assembly integrates a four-axis mechanical claw, a material picking camera, and a positioning camera, realizing the integration of part gripping, positioning, and inspection. It is suitable for the production needs of small batches and multiple varieties of small hardware parts in-mold injection molding, improving feeding accuracy and operation continuity. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the vibration motor in this invention;

[0024] Figure 3 This is a schematic diagram of the frame structure in this invention;

[0025] Figure 4 This is a schematic diagram of the frame structure from a head-up view in this invention;

[0026] Figure 5 This is a schematic diagram of the feeding vibratory feeder in this invention;

[0027] Figure 6 This is a schematic diagram of the operation panel in this invention.

[0028] In the diagram: 1. Power distribution cabinet; 101. Vibration motor; 102. Frame; 2. Feeding vibratory plate; 201. Baffle; 202. Telescopic discharge plate; 3. Flexible vibratory plate; 301. Magnetic conductive metal sheet; 4. Four-axis mechanical claw; 5. Material picking camera head; 6. Linear module; 7. Hardware positioning fixture; 8. Positioning camera head; 9. Emergency stop switch; 10. Operation panel; 11. Bracket; 12. Sliding base; 1201. Second slide rail; 1202. Third slide rail; 13. Slider; 14. Voice coil motor; 15. High-strength permanent magnet; 16. Moving plate; 17. Connecting rod; 18. Threaded rod; 19. Rotary wheel; 20. Square insert rod; 21. Fixed plate; 22. Driven wheel; 23. Driving wheel; 24. Synchronous belt; 25. First slide rail. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-6 As shown, the present invention is a flexible feeding mechanism for in-mold injection molding of small hardware, comprising:

[0031] A power distribution cabinet 1 is provided, on the top of which a vibration motor 101 and a frame 102 are fixedly installed. A feeding vibratory plate 2 is fixedly installed at the output end of the vibration motor 101. A flexible vibratory plate 3 is connected to the top of the frame 102 by a spring. The discharge end of the feeding vibratory plate 2 faces the flexible vibratory plate 3. A hardware positioning fixture 7 is provided on one side of the flexible vibratory plate 3. A feeding assembly is provided on the top of the power distribution cabinet 1. The feeding assembly is used to install the parts in the flexible vibratory plate 3 onto the hardware positioning fixture 7.

[0032] Two sliding bases 12 are slidably installed within the frame 102. The two sliding bases 12 are driven by a drive source to move towards each other. The bottom plate of the frame 102 has two symmetrically arranged first sliding grooves 25, and the two sliding bases 12 are slidably installed in the two first sliding grooves 25 respectively. Each sliding base 12 has two symmetrically arranged second sliding grooves 1201. Each end of the sliding base 12 is provided with a slider 13, which is slidably installed in the second sliding groove 1201. Each slider 13 is fixedly installed with a voice coil motor 14. The output end of the voice coil motor 14 is locked to the bottom of the flexible vibrating plate 3 through a locking component. Each sliding base 12 is provided with a drive component, which drives the sliders 13 to move towards each other.

[0033] In one embodiment, the driving source may be a bidirectional lead screw assembly driven by a motor, two symmetrically arranged electric cylinders, or other mechanisms that can enable the two sliding bases 12 to move in opposite directions. This embodiment does not impose any specific limitations on these mechanisms.

[0034] The working principle of this invention is as follows: The feeding component picks up small hardware parts that are evenly spread out and in the correct posture within the flexible vibratory feeder 3 and installs them onto the hardware positioning fixture 7, thus completing the feeding and positioning of the parts and providing a guarantee for subsequent in-mold injection molding operations. Among these steps, evenly spreading and arranging the parts in the flexible vibratory feeder 3 to the correct posture is the key to ensuring feeding accuracy. The specific operation process is as follows: First, the small hardware parts to be fed are placed in batches into the feeding vibratory feeder 2. The vibration motor 101 is started, which drives the feeding vibratory feeder 2 to vibrate, causing the internal parts to gradually move towards the discharge end. The discharge end of the feeding vibratory feeder 2 is aligned with the edge of the flexible vibratory feeder 3, and the discharge speed is precisely matched with the dispersing speed of the flexible vibratory feeder 3. At the same time, the voice coil motor 14 is started and outputs a micro-amplitude vibration with a specific phase difference, which drives the flexible vibratory feeder 3 to generate vibration waves. The parts that fall from the discharge end of the feeding vibratory feeder 2 into the edge of the flexible vibratory feeder 3 will gradually move towards the center along the vibration waves on the feeder surface. During the movement, they naturally complete the flipping, spreading, and posture adjustment, ultimately achieving even spreading.

[0035] It is important to note that the small hardware parts to be loaded are diverse, covering various structural forms such as long strips and columns. Parts with different shapes and center-of-gravity distributions require different vibration phase differences from the flexible vibratory feeder 3. Only by matching and adapting the phase difference can the parts be completely dispersed, avoiding problems such as stacking, tangling, and jamming. This requirement needs to be achieved by controlling the different on / off states of the voice coil motor 14. More importantly, the relative connection position between the voice coil motor 14 and the slider 13 directly affects the vibration effect of the flexible vibratory feeder 3. Different spacing distributions will change the vibration mode of the feeder surface, thus affecting the dispersion quality of the parts. Based on this, the two sliders are driven by a drive source. The moving base 12 moves in opposite directions along the first slide groove 25 to adjust the spacing of the four voice coil motors 14 in the discharge direction of the feeding vibratory plate 2. Secondly, through the driving component on each sliding base 12, the two symmetrically arranged sliders 13 on the sliding base 12 are driven to move in opposite directions along the second slide groove 1201 to further finely adjust the position of the corresponding voice coil motor 14. Through the above dual adjustment, each voice coil motor 14 can realize XY two-axis displacement adjustment, and can flexibly adjust the position and spacing according to the vibration and dispersion requirements of different types of parts, match the optimal vibration phase difference, and ensure that all types of parts can be evenly dispersed without the need to set up a separate feeding unit for each type of part.

[0036] like Figures 1-5As shown, in a preferred embodiment of the present invention, the two sliding bases 12 are arranged along the extension direction of the discharge end of the feeding vibratory plate 2. A telescopic discharge plate 202 is slidably installed at the bottom of the discharge end of the feeding vibratory plate 2. The telescopic discharge plate 202 is driven to move by a power component. When the two sliding bases 12 move away from each other, the power component drives the telescopic discharge plate 202 to retract. When the two sliding bases 12 move closer to each other, the power component drives the telescopic discharge plate 202 to extend, so that the parts fall on the flexible vibratory plate 3 that is close to the voice coil motor 14 adjacent to the feeding vibratory plate 2.

[0037] In one embodiment, the power component can be an electric cylinder, an electric telescopic rod, or other mechanisms capable of linear reciprocating motion. This embodiment does not impose specific limitations on these components.

[0038] In practical application, it should be noted that the voice coil motor 14 controls the flexible vibrating disk 3 to generate vibration waves through phase difference. Parts added from the edge of the flexible vibrating disk 3 can gradually move towards the center along the vibration waves, naturally completing flipping, spreading, and posture correction during the process, adapting to the vibration and spreading requirements of different parts. However, when switching between different types of parts, the voice coil motor 14 adjusts its position through the movement of the sliding base 12 and the slider 13, causing a change in the effective vibration edge of the flexible vibrating disk 3. If the parts still fall from the fixed discharge end of the feeding vibrating disk 2, they will deviate from the vibration edge of the flexible vibrating disk 3, leading to… The parts cannot be effectively dispersed by vibration. Therefore, the telescopic discharge plate 202 is driven to extend and retract by a power component, which can adjust the position of the discharge end of the feeding vibratory plate 2. The two sliding bases 12 are arranged along the extension direction of the discharge end of the feeding vibratory plate 2. The moving direction of the telescopic discharge plate 202 is consistent with the moving direction of the sliding bases 12. This can achieve precise matching between the discharge end of the feeding vibratory plate 2 and the movement of the voice coil motor 14, ensuring that the landing point of different types of parts is at the vibration edge of the flexible vibratory plate 3, thus ensuring the dispersing effect of the parts. At the same time, it avoids the need to add multiple sets of feeding vibratory plates 2, further reducing the space occupied by the equipment and improving the degree of integration.

[0039] like Figures 1-5 As shown, in a preferred embodiment of the present invention, a baffle 201 is rotatably mounted on the feeding vibratory plate 2. The baffle 201 is driven to rotate by a first output source. The baffle 201 separates the feeding vibratory plate 2 into a storage area and a discharge area. The telescopic discharge plate 202 is located in the discharge area. When the first output source drives the baffle 201 to rotate to a horizontal state, the storage area and the discharge area are connected, and the vibration motor 101 is turned on at this time.

[0040] In one embodiment, the first output source may be a servo motor, a servo motor or other components, or other mechanisms capable of rotational motion. This embodiment does not impose specific limitations on these components.

[0041] In practical application, this embodiment places all small hardware parts of the same type into the storage area of ​​the feeding vibratory feeder 2 to avoid problems such as difficulty in dispersing and jamming caused by mixing different types of parts. The first output source starts the drive baffle 201 to rotate to a horizontal state, connecting the storage area and the discharge area. Then, the vibration motor 101 is turned on, driving the feeding vibratory feeder 2 to vibrate, so that the parts in the storage area gradually enter the discharge area and are transported to the flexible vibratory feeder 3 through the telescopic discharge plate 202. When the number of parts in the flexible vibratory feeder 3 reaches the single processing limit, the first output source drives the baffle 201 to rotate to a vertical state, closing the connection between the storage area and the discharge area. This prevents the parts from continuously entering the discharge area and causing the parts in the flexible vibratory feeder 3 to accumulate and not be effectively dispersed, ensuring the uniformity and consistency of the dispersed parts, thereby improving the accuracy of the subsequent gripping by the robotic arm. At the same time, there is no need to set up a separate feeding vibratory feeder 2 for each type of part, effectively reducing the equipment manufacturing cost and maintenance workload.

[0042] like Figures 1-4 As shown, in a preferred embodiment of the present invention, the driving assembly includes a third slide groove 1202, a movable plate 16, a connecting rod 17, a threaded rod 18, and a synchronization assembly. Each sliding base 12 is provided with a third slide groove 1202. The movable plate 16 is slidably installed in the third slide groove 1202. The two ends of the movable plate 16 are rotatably installed with connecting rods 17. The two sliders 13 are respectively rotatably connected to the ends of the two connecting rods 17 away from the movable plate 16. Each sliding base 12 is rotatably installed with a threaded rod 18. The threaded rod 18 is threadedly connected to the movable plate 16. The two threaded rods 18 are driven by the synchronization assembly to rotate synchronously.

[0043] In practical application, this embodiment drives two threaded rods 18 to rotate synchronously through a synchronization component. The rotation of the threaded rods 18 causes the moving plate 16 to move linearly along the third slide groove 1202. When the moving plate 16 moves, it pulls two sliders 13 along the second slide groove 1201 in opposite directions through the connecting rods 17 at both ends, thereby adjusting the distance between the two voice coil motors 14 on the same sliding base 12. By adjusting the distance between the voice coil motors 14, the vibration mode and phase difference distribution of the flexible vibrating plate 3 can be changed to adapt to the vibration requirements of different shaped parts, such as sheet-like, nail-like, and strip-like parts. There is no need to add multiple sets of flexible vibrating plates 3 and supporting components, which effectively reduces the space occupied by the equipment, improves the degree of integration, and reduces the equipment manufacturing cost and maintenance workload.

[0044] like Figures 1-4As shown, in a preferred embodiment of the present invention, the synchronization component includes a rotating wheel 19, a square insert rod 20, and a power component. The two rotating wheels 19 are respectively rotatably mounted on the inner wall of the frame 102, and the two rotating wheels 19 are symmetrically arranged. The rotating wheels 19 are coaxially arranged with the threaded rods 18. The two ends of the square insert rod 20 are respectively coaxially fixedly connected to the two rotating wheels 19. The square insert rod 20 is driven to rotate by the power component. The square insert rod 20 passes through the two threaded rods 18, and the square insert rod 20 is slidably connected to the threaded rods 18.

[0045] In practical application, when the power component drives the square insert rod 20 to rotate, the square insert rod 20, being a square structure, can drive the two threaded rods 18 to rotate synchronously. This, in turn, drives the four voice coil motors 14 to adjust their spacing synchronously via the drive component. This eliminates the need for a separate power source for each threaded rod 18, reducing the number of power sources and lowering equipment costs. Simultaneously, the square insert rod 20 and the threaded rods 18 are slidably connected. When the drive source drives the two sliding bases 12 to move in opposite directions, the threaded rods 18 can slide along the square insert rod 20 without obstructing the position adjustment of the sliding bases 12. This ensures that the voice coil motors 14 can achieve XY-axis displacement adjustment, further enhancing the flexibility of the cooperation between the voice coil motors 14 and the flexible vibrating plate 3, adapting to the vibration requirements of more types of parts, avoiding the need for multiple independent feeding units, and further improving the equipment's integration level.

[0046] like Figures 1-4 As shown, in a preferred embodiment of the present invention, the power assembly includes a fixed plate 21, a driven wheel 22, a driving wheel 23, and a synchronous belt 24. The fixed plate 21 is fixedly installed on the bottom plate of the frame 102. The driven wheel 22 and the driving wheel 23 are both rotatably installed on the fixed plate 21. The driving wheel 23 is connected to the driven wheel 22 via the synchronous belt 24. The driving wheel 23 is driven to rotate by a second output source. The driven wheel 22 is coaxially arranged with the rotating wheel 19. The driven wheel 22 is sleeved on the square insert rod 20, and the two are fixedly connected.

[0047] In one embodiment, the second output source may be a servo motor, a servo motor or other components, or other mechanisms capable of rotational motion. This embodiment does not impose specific limitations on these components.

[0048] In practical applications, when the spacing of the voice coil motors 14 needs to be adjusted, the second output source starts to drive the active wheel 23 to rotate. The active wheel 23 drives the driven wheel 22 to rotate synchronously through the synchronous belt 24. The driven wheel 22 drives the square insert rod 20 to rotate. The square insert rod 20 drives the two rotating wheels 19 and the threaded rod 18 to rotate synchronously. Then, through the drive assembly, the slider 13 and the voice coil motors 14 are moved, realizing the precise adjustment of the spacing of the voice coil motors 14. This ensures that the vibration phase difference of the flexible vibrating plate 3 is precisely matched with the vibration requirements of parts with different shapes, avoiding problems such as parts stacking, entanglement, and jamming. At the same time, the synchronous adjustment of the four voice coil motors 14 is realized through a single power assembly, simplifying the equipment structure, improving the degree of integration, and reducing the space occupied by the equipment and the workload of maintenance.

[0049] like Figures 1-3 As shown, in a preferred embodiment of the present invention, the connecting component includes a powerful permanent magnet 15 and a magnetically conductive metal sheet 301. The bottom of the flexible vibrating disk 3 is fixedly installed with a magnetically conductive metal sheet 301. Each voice coil motor 14 has a powerful permanent magnet 15 fixedly connected to its output end. When the magnetically conductive metal sheet 301 is energized, the magnetically conductive metal sheet 301 is locked to the powerful permanent magnet 15.

[0050] The flexible vibrating plate 3 has a sandwich layer at its bottom, and a magnetic shielding sheet, such as a pure copper sheet, an aluminum sheet, or a professional magnetic shielding alloy, is placed inside the sandwich layer. The magnetic shielding sheet can block the magnetic lines of force of the magnetic conductive metal sheet 301, preventing the magnetic force from penetrating into the interior of the flexible vibrating plate 3 and not affecting the vibration of the parts. At the same time, a low magnetic force magnetic conductive metal sheet 301 is selected to ensure only the connection strength between the strong permanent magnet 15 and the magnetic conductive metal sheet 301. There is no need for excessive attraction force. The current is adjusted by the controller in the power distribution cabinet 1 so that the magnetic force just meets the attraction requirements, further reducing the impact on the parts inside the plate. Moreover, the magnetic force when energized will not interfere with the vibration frequency and phase difference of the voice coil motor 14.

[0051] In practical application, when it is necessary to switch between different types of parts or adjust the position of the voice coil motor 14, the power to the magnetic metal plate 301 is first turned off via the power distribution cabinet 1. The magnetic force of the magnetic metal plate 301 disappears, and the attraction between the magnetic metal plate 301 and the powerful permanent magnet 15 is released, thus unlocking the voice coil motor 14 from the flexible vibrating plate 3. At this time, the position of the voice coil motor 14 can be adjusted via the drive source and drive components. Once the voice coil motor 14 is adjusted to the correct position, the power to the magnetic metal plate 301 is turned on via the power distribution cabinet 1, generating magnetic force and reconnecting the magnetic metal plate 301. The metal sheet 301 is precisely attracted to the powerful permanent magnet 15 to achieve a locked state, thus establishing a stable connection between the voice coil motor 14 and the flexible vibrating plate 3. This ensures that the vibration power of the voice coil motor 14 is stably transmitted to the flexible vibrating plate 3. This locking method is a contactless connection, with no physical wear and fast response. It can quickly unlock and lock the voice coil motor 14, adapting to the rapid switching needs of various parts. There is no need to set up a separate flexible vibrating plate 3 and voice coil motor 14 for each part. At the same time, it avoids the influence of magnetic force on the vibration of parts and ensures the part's posture alignment effect.

[0052] like Figures 1-6 As shown, in a preferred embodiment of the present invention, the feeding assembly includes a four-axis mechanical gripper 4, a picking and shooting head 5, a linear module 6, and a positioning shooting head 8. The linear module 6 is fixedly installed on the top of the power distribution cabinet 1 and is located on one side of the flexible vibrating plate 3. The linear module 6 is used to transport the hardware positioning fixture 7. The four-axis mechanical gripper 4 is fixedly installed on the top of the power distribution cabinet 1 and is located between the flexible vibrating plate 3 and the linear module 6. The four-axis mechanical gripper 4 is used to clamp the parts in the flexible vibrating plate 3 and install them onto the hardware positioning fixture 7. An emergency stop switch 9 and a bracket 11 are fixedly installed on the top of the power distribution cabinet 1. The picking and shooting head 5 is fixedly installed on the bracket 11 and faces the flexible vibrating plate 3. The positioning shooting head 8 is fixedly installed on the power distribution cabinet 1 and faces the hardware positioning fixture 7. An operation panel 10 is fixedly installed on the bracket 11.

[0053] In practical application, the linear module 6 transports the hardware positioning fixture 7 to the part installation station. The positioning camera 8 detects whether the hardware positioning fixture 7 has moved into place. If it has, it sends a signal to the power distribution cabinet 1. The picking camera 5 captures the position and posture of the part in the flexible vibratory feeder 3 in real time and feeds the signal back to the power distribution cabinet 1. The power distribution cabinet 1 controls the four-axis mechanical gripper 4 to accurately pick up the part with the correct posture in the flexible vibratory feeder 3 according to the feedback signal. Then, the part is moved to the hardware positioning fixture 7 for installation. After installation, the positioning camera 8 checks the installation accuracy of the part again. If it is qualified, the linear module 6 transports the hardware positioning fixture 7 to the injection molding station to complete the loading operation. This loading component integrates the functions of picking, positioning, and detection. It eliminates the need to set up a separate picking camera 5 and a four-axis mechanical gripper 4 for each type of part, avoiding the problems of lack of coordination and large maintenance workload of the components of existing multiple independent loading units.

[0054] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A flexible feeding mechanism for in-mold injection molding of small hardware, characterized in that, include: A power distribution cabinet (1) is fixedly installed on the top of the power distribution cabinet (1), a vibration motor (101) and a frame (102) are fixedly installed on the output end of the vibration motor (101), a feeding vibration plate (2) is fixedly installed on the top of the frame (102) and a flexible vibration plate (3) is connected to the top of the frame (102) by a spring, the discharge end of the feeding vibration plate (2) faces the flexible vibration plate (3), a hardware positioning fixture (7) is provided on one side of the flexible vibration plate (3), and a feeding assembly is provided on the top of the power distribution cabinet (1). The feeding assembly is used to install the parts in the flexible vibration plate (3) onto the hardware positioning fixture (7). Sliding base (12), two sliding bases (12) are slidably installed in the frame (102), the two sliding bases (12) are driven by a drive source to move towards each other, the bottom plate of the frame (102) has two symmetrically arranged first sliding grooves (25), the two sliding bases (12) are respectively slidably installed in the two first sliding grooves (25), each sliding base (12) has two symmetrically arranged second sliding grooves (1201), both ends of the sliding base (12) are provided with sliders (13), the sliders (13) are slidably installed in the second sliding grooves (1201), each slider (13) is fixedly installed with a voice coil motor (14), the output end of the voice coil motor (14) is locked to the bottom of the flexible vibrating plate (3) by a locking component, each sliding base (12) is provided with a drive component, the drive component drives the sliders (13) to move towards each other.

2. The flexible feeding mechanism for in-mold injection molding of small hardware according to claim 1, characterized in that, Two sliding bases (12) are arranged along the extension direction of the discharge end of the feeding vibratory plate (2). A telescopic discharge plate (202) is slidably installed at the bottom of the discharge end of the feeding vibratory plate (2). The telescopic discharge plate (202) is driven to move by a power component. When the two sliding bases (12) move away from each other, the power component drives the telescopic discharge plate (202) to retract. When the two sliding bases (12) move closer to each other, the power component drives the telescopic discharge plate (202) to extend, so that the parts fall on the flexible vibratory plate (3) which is close to the voice coil motor (14) adjacent to the feeding vibratory plate (2).

3. The flexible feeding mechanism for in-mold injection molding of small hardware according to claim 2, characterized in that, A baffle (201) is rotatably mounted on the feeding vibratory plate (2). The baffle (201) is driven to rotate by the first output source. The baffle (201) separates the feeding vibratory plate (2) into a storage area and a discharge area. The telescopic discharge plate (202) is located in the discharge area. When the first output source drives the baffle (201) to rotate to a horizontal state, the storage area and the discharge area are connected. At this time, the vibration motor (101) is turned on.

4. The flexible in-mold feeding mechanism for small hardware as described in claim 1, characterized in that, The driving assembly includes a third slide groove (1202), a movable plate (16), a connecting rod (17), a threaded rod (18), and a synchronization assembly. Each sliding base (12) is provided with a third slide groove (1202). The movable plate (16) is slidably installed in the third slide groove (1202). The two ends of the movable plate (16) are rotatably installed with connecting rods (17). The two sliders (13) are rotatably connected to the ends of the two connecting rods (17) away from the movable plate (16). Each sliding base (12) is rotatably installed with a threaded rod (18). The threaded rod (18) is threadedly connected to the movable plate (16). The two threaded rods (18) are driven by the synchronization assembly to rotate synchronously.

5. The flexible feeding mechanism for in-mold injection molding of small hardware according to claim 4, characterized in that, The synchronization component includes a rotating wheel (19), a square insert rod (20), and a power component. The two rotating wheels (19) are rotatably mounted on the inner wall of the frame (102) and are symmetrically arranged. The rotating wheel (19) is coaxially arranged with the threaded rod (18). The two ends of the square insert rod (20) are coaxially fixedly connected to the two rotating wheels (19). The square insert rod (20) is driven to rotate by the power component. The square insert rod (20) passes through the two threaded rods (18) and is slidably connected to the threaded rods (18).

6. The flexible feeding mechanism for in-mold injection molding of small hardware according to claim 5, characterized in that, The power assembly includes a fixed plate (21), a driven wheel (22), a driving wheel (23), and a timing belt (24). The fixed plate (21) is fixedly installed on the bottom plate of the frame (102). The driven wheel (22) and the driving wheel (23) are both rotatably installed on the fixed plate (21). The driving wheel (23) is connected to the driven wheel (22) through the timing belt (24). The driving wheel (23) is driven to rotate by a second output source. The driven wheel (22) is coaxially arranged with the rotating wheel (19). The driven wheel (22) is sleeved on the square insert rod (20), and the two are fixedly connected.

7. The flexible feeding mechanism for in-mold injection molding of small hardware according to claim 1, characterized in that, The connecting assembly includes a powerful permanent magnet (15) and a magnetically conductive metal sheet (301). The bottom of the flexible vibrating plate (3) is fixedly installed with a magnetically conductive metal sheet (301). Each voice coil motor (14) has a powerful permanent magnet (15) fixedly connected to its output end. When the magnetically conductive metal sheet (301) is energized, the magnetically conductive metal sheet (301) locks with the powerful permanent magnet (15).

8. The flexible feeding mechanism for in-mold injection molding of small hardware according to claim 1, characterized in that, The feeding assembly includes a four-axis mechanical gripper (4), a picking camera (5), a linear module (6), and a positioning camera (8). The linear module (6) is fixedly installed on the top of the power distribution cabinet (1) and is located on one side of the flexible vibrating plate (3). The linear module (6) is used to transport the hardware positioning fixture (7). The four-axis mechanical gripper (4) is fixedly installed on the top of the power distribution cabinet (1) and is located between the flexible vibrating plate (3) and the linear module (6). 4) Used to clamp and install the parts inside the flexible vibratory plate (3) onto the hardware positioning fixture (7). An emergency stop switch (9) and a bracket (11) are fixedly installed on the top of the power distribution cabinet (1). The material picking camera (5) is fixedly installed on the bracket (11). The material picking camera (5) faces the flexible vibratory plate (3). The positioning camera (8) is fixedly installed on the power distribution cabinet (1). The positioning camera (8) faces the hardware positioning fixture (7). An operation panel (10) is fixedly installed on the bracket (11).

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