A loading device for patch inductor pad printing processing

Abstract

This invention provides a feeding device for pad printing of surface mount inductors, including a discharge tray, a guide tray, an industrial camera, a transfer device, and multiple vibrating feeding trays. The vibrating feeding trays are used to arrange and feed workpieces to the guide trays, and the material slots of the guide trays are connected to a portion of the material slots of the arrangement trays. The industrial camera is used to photograph the guide trays and discharge trays to obtain the workpiece arrangement. The transfer device is used to adjust the position of the workpieces. By adding a dedicated transfer device, it eliminates the need to move other feeding and discharge components, can cope with the situation of damage to the vibrating feeding trays, and effectively ensures the overall feeding efficiency.

Description

Technical Field

[0001] This invention relates to the field of surface mount inductor processing equipment, and more specifically, to a feeding device for surface mount inductor pad printing processing. Background Technology

[0002] In the manufacturing process of surface mount inductors, pad printing is one of the steps. Current pad printing feeding equipment mainly feeds materials onto the material plate through a vibrating feeding tray. Multiple material slots are set on the material plate, and the workpiece is transported to the corresponding material slot by moving the material plate or the vibrating feeding tray horizontally. For example, the patent CN216183667U adopts the above method, which achieves rapid feeding through multiple vibrating feeding trays and achieves alignment and connection with the material slots by moving the vibrating feeding trays to complete the conveying of the workpiece onto the material plate.

[0003] This method also has a significant drawback: it uses multiple vibrating feeders for material supply, with each feeder corresponding to several troughs in a given area. If one of the feeders, especially the one near the edge, malfunctions, the only way to supply material to the troughs in that area is to expand the lateral movement range. This will affect the feeding speed of other parts, and it requires the equipment to have a sufficiently large lateral movement range. Otherwise, it will not be able to achieve the desired supply and replenishment effect. Therefore, this method needs improvement. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a feeding device for pad printing of surface mount inductors. By adding a dedicated feeding device, it can cope with the situation of damage to the vibrating feeding tray without moving other feeding and discharging components, and effectively ensure the overall feeding efficiency.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This invention provides a feeding device for pad printing of surface mount inductors, including a discharge tray, a guide tray, an industrial camera, a transfer device, and multiple vibrating feeding trays; the vibrating feeding trays are used to arrange and send workpieces to the guide tray, and the material grooves of the guide tray are connected to a portion of the material grooves of the arrangement tray; the industrial camera is used to photograph the guide tray and the discharge tray to obtain the workpiece arrangement; the transfer device is used to adjust the position of the workpieces.

[0007] In a preferred embodiment of the present invention, four vibrating feeding trays are included; a guide tray is provided with four first material grooves running through both ends of the vibrating feeding trays, and the ends of the four first material grooves are respectively connected to the discharge ports of the four vibrating feeding trays; a discharge tray is provided with multiple evenly spaced second material grooves, one end of the second material grooves near the guide tray is open, and the ports of four of the second material grooves are connected to the ends of the first material grooves; the other end of the second material grooves is sealed, serving as the end position of the workpiece arrangement for cooperation with external transfer equipment; a transfer device is located above the discharge tray and the guide tray, used to transfer the workpieces on the guide tray to the discharge tray, and also used for adjusting the arrangement of the workpieces on the guide tray; an industrial camera is located above the transfer device, used to photograph the arrangement of the workpieces on the guide tray and the discharge tray.

[0008] In a preferred embodiment of the present invention, a pressure plate is installed on the top of the end of the discharge tray away from the vibrating feeding tray, forming a row of single material inlets at the end of the second material trough. The shape of the material inlets is adapted to the shape of the workpiece. The width of the pressure plate is at least greater than the sum of the side lengths of three workpieces. Multiple first infrared sensors for monitoring the workpiece are installed on the side of the pressure plate away from the material inlets. The number of first infrared sensors is the same as the number of second material troughs, and their positions correspond.

[0009] In a preferred embodiment of the present invention, a first through hole is provided at the bottom of the end of the second material trough away from the vibrating feeding plate. The first through hole is located on the side of the material inlet near the upstream. The distance between the center of the first through hole and the center of the material inlet is consistent with the center distance between the two connected workpieces. A clamping structure is installed on the bottom surface of the discharge tray. The clamping structure includes a first cylinder. A support plate is installed at the end of the piston rod of the first cylinder. Multiple first push rods are fixed on the top surface of the support plate. The position of the first push rod corresponds to the position of the first through hole and the shape is adapted. The first cylinder is used to drive the first push rod to move upward, and is used to clamp and fix the workpiece arranged in the second position.

[0010] In a preferred embodiment of the present invention, the bottom of the second material trough is inclined downward in a direction away from the first material trough, with an inclination angle of less than 2°; the bottom of the trough corresponding to the material inlet and the first perforation is flush with the horizontal plane and smoothly transitions to the lower inclined end.

[0011] In a preferred embodiment of the present invention, the material transfer device includes a gripping structure and a moving structure; the moving structure is used to drive the gripping structure to move laterally and longitudinally on a horizontal plane, and to adjust the position of the gripping structure on the guide tray and the discharge tray; the gripping structure is provided with a gripping component that can be vertically lifted and lowered for picking up and placing workpieces.

[0012] In a preferred embodiment of the present invention, the gripping structure includes a second cylinder, a support frame, an air collection box, and a second infrared sensor. The second cylinder is mounted on a moving part of the moving structure, and the support frame is mounted on the piston rod end of the second cylinder. The bottom of the support frame is provided with a plurality of second through holes evenly spaced along the length of the material trough, and the spacing between the second through holes is consistent with the center distance between two adjacent workpieces. The bottom surface of the air collection box is connected to a plurality of suction nozzles, and the air collection box is installed inside the support frame. The suction nozzles pass through the second through holes and extend out of the bottom surface of the support frame. The air collection box is connected to an external negative pressure device through an air supply hose, serving as a gripping component to grip workpieces by suction. The number of second infrared sensors is two, and they are installed on the bottom sides of the support frame.

[0013] In a preferred embodiment of the present invention, elastic clamping assemblies are provided on the outer sides of both ends of the gas collection box; the elastic clamping assembly includes a clamping member and a first spring, the clamping member includes a second push rod, a guide rod fixedly disposed at the top of the second push rod, and a limiting plate installed on the top of the guide rod; the bottom ends of the support frame are provided with third through holes, the distance between the third through hole and the adjacent second through hole is consistent with the interval distance of the second through holes; the third through hole is a rectangular hole structure, and the shape of the second push rod is adapted to the shape of the third through hole; the top of the support frame is provided with a corresponding guide hole, the shape of the guide hole is adapted to the shape of the guide rod; the clamping member passes through the third through hole and the guide hole, the limiting plate is located on the outer side of the top of the support frame, the first spring is sleeved on the guide rod, the first spring is clamped between the top of the support frame and the second push rod, providing the second push rod with a downward pushing elastic force, so that the clamping member has space to move in the vertical direction.

[0014] In a preferred embodiment of the present invention, a second spring is sleeved on the guide rod, and the second spring is located between the top surface of the limiting plate and the support frame; a ring-shaped electromagnet is arranged around the top outer side of the guide hole, the second spring is located at the inner ring of the electromagnet, the limiting plate is located above the electromagnet, and a magnet is fixedly arranged on the bottom surface of the limiting plate; when the clamping member is not subjected to external force, the bottom end of the second push rod is not higher than the bottom end of the suction nozzle, and a gap of at least the thickness of the workpiece is left between the magnet and the electromagnet; after being energized, the electromagnet and the magnet have opposite magnetic properties, and the magnetic attraction force is used to overcome the elastic force of the second spring, causing the clamping member to move downward.

[0015] The beneficial effects of this invention are as follows:

[0016] This invention provides a feeding device for pad printing of surface mount inductors, comprising a discharge tray, a guide tray, an industrial camera, a transfer device, and multiple vibrating feed trays. The vibrating feed trays are used to arrange and feed workpieces to the guide trays, and the material slots of the guide trays are connected to a portion of the material slots of the arrangement trays. The industrial camera is used to photograph the guide trays and discharge trays to obtain the workpiece arrangement. The transfer device is used to adjust the position of the workpieces. By adding a dedicated transfer device, the workpieces can be transferred and arranged without changing the positions of the discharge trays, guide trays, and vibrating feed trays to achieve the connection and change of the conveying parts. This makes the overall structure more compact and can also cope with the situation of damage to the vibrating feed trays, effectively ensuring the overall feeding efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a feeding device for pad printing of surface mount inductors provided in a specific embodiment of the present invention;

[0018] Figure 2 This is a side view of a feeding device for pad printing of surface mount inductors provided in a specific embodiment of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the main structure of a feeding device for pad printing of surface mount inductors provided in a specific embodiment of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the discharge tray provided in a specific embodiment of the present invention;

[0021] Figure 5 This is a cross-sectional view of the discharge tray provided in a specific embodiment of the present invention;

[0022] Figure 6 This is a three-dimensional structural diagram of the clamping structure provided in a specific embodiment of the present invention;

[0023] Figure 7 This is a three-dimensional structural schematic diagram of the material transfer device provided in a specific embodiment of the present invention;

[0024] Figure 8 This is a three-dimensional structural diagram of the grasping structure provided in a specific embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the three-dimensional unfolded structure of the grasping structure provided in a specific embodiment of the present invention;

[0026] Figure 10 This is a three-dimensional structural diagram of the support frame provided in a specific embodiment of the present invention.

[0027] In the picture:

[0028] 100. Discharge tray; 110. Second material trough; 111. First perforation; 130. Pressure plate; 140. Material dispensing port; 150. First infrared sensor; 200. Guide tray; 210. First material trough; 300. Industrial camera; 400. Vibrating feeder; 500. Clamping structure; 510. First cylinder; 520. Support plate; 530. First push rod; 600. Transfer device; 700. Gripping structure; 710. Second cylinder Cylinder; 720, Support frame; 721, Second perforation; 722, Third perforation; 723, Guide hole; 730, Air collection box; 731, Suction nozzle; 740, Second infrared sensor; 750, Elastic clamping assembly; 751, Clamping component; 7511, Second push rod; 7512, Guide rod; 752, First spring; 753, Limiting plate; 754, Second spring; 755, Magnet block; 760, Electromagnet; 800, Moving structure. Detailed Implementation

[0029] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 3 As shown in the figure, a specific embodiment of the present invention discloses a feeding device for pad printing of surface mount inductors, including a discharge tray 100, a guide tray 200, an industrial camera 300, a transfer device 600, and multiple vibrating feeding trays 400; the vibrating feeding trays 400 are used to arrange and send workpieces to the guide tray 200, and the material grooves of the guide tray 200 are connected to a portion of the material grooves of the arrangement tray 100; the industrial camera 300 is used to photograph the guide tray 200 and the discharge tray 100 to obtain the workpiece arrangement; the transfer device is used to adjust the position of the workpieces.

[0031] The aforementioned feeding equipment for pad printing of surface mount inductors achieves workpiece transfer and arrangement by adding a dedicated material transfer device. It eliminates the need to change the positions of the discharge tray, guide tray, and vibrating feeder to achieve the connection and change of the conveying parts, making the overall structure more compact and also able to cope with the situation of damage to the vibrating feeder, effectively ensuring the overall feeding efficiency.

[0032] Furthermore, it includes four vibrating feeding trays 400; the guide tray 200 is provided with four first material troughs 210 passing through both ends of the vibrating feeding trays 400, and the ends of the four first material troughs 210 are respectively connected to the discharge ports of the four vibrating feeding trays 400; this realizes multi-point feeding and effectively improves the overall feeding speed; the discharge tray 100 is provided with multiple evenly spaced second material troughs 110, the end of the second material troughs near the guide tray is open, and the ports of four of the second material troughs 110 are connected to the ends of the first material troughs 210 to realize partial conduction, maintain smooth feeding, so as to provide enough workpieces for replenishing the other material troughs. The other end of the second material trough is sealed, serving as the end position for workpiece arrangement. Workpieces stop after moving to this position, which is used to coordinate with external transfer equipment. The transfer device 600 is located above the discharge tray 100 and the guide tray 200. It is used to transfer workpieces on the guide tray to the discharge tray and also to adjust the arrangement of workpieces on the guide tray, providing sufficient movement coverage to ensure that the workpieces in the designated area can be adjusted as needed. The industrial camera 300 is located above the transfer device 600, providing a sufficiently large shooting range to capture the arrangement of workpieces on the guide tray and discharge tray, so as to facilitate the coordinated movement of subsequent components.

[0033] Furthermore, such as Figure 3 As shown, a pressure plate 130 is installed on the top of the end of the discharge tray 100 away from the vibrating feed tray 400, forming a row of single pick-up ports 140 at the end of the second material trough. The shape of the pick-up port is adapted to the shape of the workpiece. The width of the pressure plate is at least greater than the sum of the side lengths of three workpieces. By setting a separate pick-up port in the empty space of the pressure plate, it can effectively prevent external transfer equipment from colliding with other workpieces when grabbing workpieces. Multiple first infrared sensors 150 for monitoring workpieces are installed on the side of the pressure plate 130 away from the pick-up port. The number of first infrared sensors 150 is the same as the number of second material troughs 110, and their positions correspond. They are used to assist in monitoring the arrangement of workpieces. When a workpiece is detected in this part, it means that at least a few workpieces are arranged in front, which can maintain normal workpiece picking and placing. If no workpiece is detected in this part, it means that the overall operation may be malfunctioning, including but not limited to problems with the vibrating feed tray, the transfer device, etc., resulting in incomplete material replenishment. An alarm can be issued by an external alarm to remind the machine operator to check and adjust in time.

[0034] Furthermore, such as Figure 4 , Figure 5 As shown, the bottom of the second material trough 110 away from the vibrating feeding plate has a first through hole 111. The first through hole 111 is located on the upstream side of the material pick-up port 140, and the distance between the center of the first through hole and the center of the material pick-up port is the same as the center distance between the two adjacent workpieces; the bottom surface of the discharge tray 100 is equipped with a clamping structure 500, such as... Figure 6As shown, the clamping structure 500 includes a first cylinder 510. A support plate 520 is installed at the end of the piston rod of the first cylinder 510. Multiple first push rods 530 are fixed on the top surface of the support plate 520. The positions of the first push rods 530 correspond to the positions of the first through holes 111 and their shapes are adapted. The first cylinder is used to drive the first push rods to move upward, which is used to clamp and fix the workpieces arranged in the second position. This structure is mainly designed to cooperate with external transfer equipment. During the process of the transfer equipment grabbing the workpieces at the feeding port, the clamping structure needs to maintain the force on the second workpiece, so that the workpiece is clamped between the first push rod and the pressure plate, preventing the second workpiece from shifting with the first workpiece, and also avoiding affecting the removal of the first workpiece, thus ensuring the normal operation of the whole operation.

[0035] The top surface of the first push rod is fixed with a rubber pad to enhance the squeezing force and prevent damage to the workpiece.

[0036] Furthermore, such as Figure 5 As shown, the bottom of the second material trough 110 is inclined downward in a direction away from the first material trough 210, with an inclination angle of less than 2°; the bottom of the trough corresponding to the material inlet 140 and the first through hole 111 is flush with the horizontal plane and smoothly transitions to the lower end of the inclination, providing a basic inclined sliding surface so that the workpiece can move and be arranged in the direction of the material inlet.

[0037] Furthermore, such as Figure 7 As shown, the material transfer device 600 includes a gripping structure 700 and a moving structure 800; the moving structure 800 is used to drive the gripping structure 700 to move laterally and longitudinally on the horizontal plane, and adjust the position of the gripping structure on the guide tray and the discharge tray; the gripping structure is provided with a gripping component that can be vertically lifted and lowered for picking up and placing workpieces; it realizes movement in three directions to ensure that the gripping and transfer of workpieces can be realized.

[0038] Furthermore, such as Figures 8 to 10As shown, the gripping structure 700 includes a second cylinder 710, a support frame 720, an air collection box 730, and a second infrared sensor 740. The second cylinder 710 is mounted on the moving part of the moving structure 800, and the support frame 720 is mounted on the piston rod end of the second cylinder 710. The bottom of the support frame 720 is provided with a plurality of second through holes 721 evenly spaced along the length of the material trough, and the spacing between the second through holes is consistent with the center distance between two adjacent workpieces. The bottom surface of the air collection box 730 is connected to and equipped with a plurality of suction nozzles 731, and the air collection box 730 is mounted on the support frame 740. Inside the frame 720, the suction nozzle 731 extends through the second perforation 721 to the bottom surface of the support frame. The air collection box is connected to the external negative pressure equipment through the air supply hose, serving as a gripping component to grip the workpiece by suction. There are two second infrared sensors 740 installed on the bottom sides of the support frame 720. By using multiple suction nozzles to perform negative pressure adsorption on the workpiece, multiple workpieces can be picked up simultaneously, improving the efficiency of workpiece conveying and arrangement. The second infrared sensors are used for detection to prevent the transferred workpiece from colliding with the original workpieces in the trough, ensuring the normal transfer and arrangement of workpieces.

[0039] Furthermore, the moving structure includes a first linear slide, two opposing second linear slides, the second linear slides extending along the width direction of the guide tray, the two second linear slides being respectively located above the ends of the guide tray and the collection tray, the first linear slide being mounted between the sliders of the two second linear slides, and the first linear slide extending along the length direction of the material trough; a second cylinder is mounted on the slider of the first linear slide, and achieves lateral and longitudinal movement driven by the first and second linear slides, and combined with the extension and retraction of the second cylinder, complete the lateral and lifting movements of the entire gripping part.

[0040] Furthermore, the outer sides of both ends of the gas collection box 730 are provided with elastic clamping components 750; the elastic clamping components 750 include clamping members 751 and a first spring 752, the clamping members 751 include a second push rod 7511, a guide rod 7512 fixedly disposed at the top of the second push rod, and a limit plate 753 installed on the top of the guide rod 7512; the bottom ends of the support frame 720 are provided with third through holes 722, the distance between the third through hole and the adjacent second through hole is the same as the interval distance of the second through holes; the third through hole 722 is a rectangular hole structure, and the shape of the second push rod 7511 is... The shape of the guide rod 7512 is adapted to the shape of the third through hole 722; the top of the support frame 720 is provided with a guide hole 723, the shape of the guide hole 723 is adapted to the shape of the guide rod 7512; the clamping member 751 is inserted through the third through hole 722 and the guide hole 723; the limiting plate 753 is located on the top outer side of the support frame 720; the first spring 752 is sleeved on the guide rod 7512; the first spring 752 is clamped between the top of the support frame 720 and the second push rod 7511, providing the second push rod with a downward pushing force, so that the clamping member has space to move in the vertical direction;

[0041] The elastic clamping component is designed to clamp the workpieces on both sides of the suction nozzle, preventing them from moving away from the feed trough as they are sucked up in the middle. With the above structure, the clamping component will press against the top of the workpieces on both sides before the suction nozzle holds the workpiece, but it will not affect the continued downward movement of the suction nozzle. Furthermore, when the suction nozzle grabs the workpiece and leaves the feed trough, the clamping component will still press against the workpiece to prevent the workpieces on both sides from moving with it.

[0042] Furthermore, a second spring 754 is sleeved on the guide rod 7512, and the second spring 754 is located between the limiting plate 753 and the top surface of the support frame 720; a ring-shaped electromagnet 760 is surrounded on the outer side of the top of the guide hole 723, the second spring 754 is located at the inner ring of the electromagnet 760, the limiting plate 753 is located above the electromagnet 760, and a magnet block 755 is fixedly provided on the bottom surface of the limiting plate 753; when the clamping member is not subjected to external force, the bottom end of the second push rod is not higher than the bottom end of the suction nozzle, and there is a gap of at least the thickness of the workpiece between the magnet block and the electromagnet; after being energized, the electromagnet and the magnet block have opposite magnetic properties, and the magnetic attraction force is used to overcome the elastic force of the second spring, causing the clamping member to move downward; this structural design allows the clamping member to have the effect of individually adjusting its extension, and the outwardly extending second push rod can be used as the part to push the workpiece, and the workpiece can be pushed to the target position in conjunction with the moving structure, or the dispersed workpieces can be arranged closely, which is convenient for the overall arrangement.

[0043] It should be noted that the clamping component, the limiting plate, the magnet block, the first spring, and the second spring are in a state of force balance when the electromagnet is not energized. The clamping component has the space to move up and down to meet the corresponding action requirements.

[0044] Furthermore, a threaded rod is fixedly provided at the top of the guide rod, a fourth through hole is provided in the middle of the limiting plate, a nut is fixedly provided on the outer side of the top of the fourth through hole, and the limiting plate is fixed to the threaded rod by the nut threaded connection. It adopts a detachable structure, which facilitates the processing and production of each structural component and also facilitates the assembly of the elastic clamping component and the support frame.

[0045] Furthermore, it also includes an electrical control box. All electrical structures, external transfer equipment, pad printing equipment, and negative pressure equipment of this invention are electrically connected to the electrical control box. The electrical control box enables coordinated movement of each structure, prevents interference and collision, and maintains smooth overall operation. It should be noted that the vibrating feeder, industrial camera, linear slide, cylinder, infrared sensor, and alarm are all common mechanical structures that can be purchased and used on the market. The specific structure will not be described in detail.

[0046] More specifically, the operating steps are as follows: the vibrating feeding tray feeds the workpieces by vibrating, causing them to be arranged and conveyed to the first material trough, and then transferred to the corresponding second material trough. The workpieces move and are arranged towards the bottom along the inclined plane. An industrial camera captures images of the guide tray and discharge tray to provide feedback on the arrangement of the workpieces. When a certain second material trough is obviously lacking workpieces, a material transfer device grabs the workpieces from the first material trough or the second material trough corresponding to the first material trough and transfers them to the required position, thereby realizing the diversion and arrangement of workpieces.

[0047] Furthermore, when placing the workpiece, it needs to be moved to the upper end of the corresponding material trough near the guide tray by the second linear slide. Then, the first linear slide moves the gripping structure downstream of the material trough. When the second infrared sensor on the downstream side detects a workpiece below, the material trough corresponding to the suction nozzle is empty. The second cylinder moves the workpiece down to the preset position, the external negative pressure device releases pressure, and the workpiece moves from the suction nozzle to the material trough. Then, the second cylinder moves the support frame up to the preset height. At this time, the electromagnet on the upstream side is energized, so that the second push rod in this part is maintained at the material trough. Then, the first linear slide moves the support frame downstream, pushing the workpiece downstream, so that the workpiece moves to fill the empty part corresponding to the second push rod part, so that the workpiece is closely arranged.

[0048] It should be noted that in actual use, the vibration of the vibrating feeder will be transmitted to other parts. Although there is an inclined surface, it is impossible to completely prevent some workpieces from moving back. The workpieces may become loose and not tightly arranged. In this case, the electromagnet near the downstream can be energized to make the corresponding second push rod extend downwards as a pushing component. With the cooperation of the second cylinder and the moving structure, the loosely arranged workpieces are pushed to make them as tightly arranged as possible at the bottom. This facilitates the subsequent imaging and identification of the workpiece arrangement and determines whether replenishment is needed.

[0049] This invention has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. This invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims are also within the protection scope of this invention.

Claims

1. A feeding device for pad printing of surface mount inductors, characterized in that: Includes discharge tray, guide tray, industrial camera, transfer device, and multiple vibrating feed trays; The vibrating feeder is used to arrange and deliver workpieces to the guide tray, and the material groove of the guide tray is connected to a portion of the material groove of the arrangement tray. Industrial cameras are used to photograph the guide trays and discharge trays to obtain the workpiece arrangement. The transfer device is used to adjust the position of the workpiece; The material transfer device includes a gripping structure and a moving structure; The moving structure is used to drive the gripping structure to move laterally and longitudinally on the horizontal plane, and to adjust the position of the gripping structure on the guide tray and the discharge tray; The gripping structure is equipped with gripping components that can be vertically lifted and lowered for picking up and placing workpieces; The gripping structure includes a second cylinder, a support frame, an air collection box, and a second infrared sensor; The second cylinder is mounted on the moving part of the moving structure, and the support frame is mounted on the end of the piston rod of the second cylinder; The bottom of the support frame is provided with multiple second through holes that are evenly spaced along the length of the material trough, and the spacing between the second through holes is consistent with the center distance between two adjacent workpieces. Multiple suction nozzles are installed on the bottom surface of the gas collection box. The gas collection box is installed inside the support frame. The suction nozzles pass through the second through hole and exit the bottom surface of the support frame. The gas collection box is connected to the external negative pressure equipment through the air supply hose. It serves as a gripping component and grips the workpiece by suction. The second infrared sensor consists of two sensors, which are installed on the bottom sides of the support frame. The outer sides of both ends of the gas collection box are equipped with elastic clamping components; The elastic clamping assembly includes a clamping component and a first spring. The clamping component includes a second push rod and a guide rod fixedly disposed at the top of the second push rod. A limit plate is installed on the top of the guide rod. The bottom two ends of the support frame are provided with a third through hole, and the distance between the third through hole and the adjacent second through hole is the same as the interval distance of the second through hole; the third through hole is a rectangular hole structure, and the shape of the second push rod is adapted to the shape of the third through hole; the top of the support frame is provided with a guide hole, and the shape of the guide hole is adapted to the shape of the guide rod. The clamping component is inserted through the third through hole and the guide hole. The limiting plate is located on the top outer side of the support frame. The first spring is sleeved on the guide rod. The first spring is clamped between the top of the support frame and the second push rod, providing the second push rod with a downward pushing force, so that the clamping component has space to move in the vertical direction.

2. The feeding equipment for pad printing of surface mount inductors according to claim 1, characterized in that: Includes 4 vibrating feeders; The guide tray is equipped with four first material grooves that run through both ends of the vibrating feeding tray, and the ends of the four first material grooves are respectively connected to the discharge ports of the four vibrating feeding trays. The discharge tray is provided with multiple evenly spaced second material troughs. The end of the second material trough near the guide tray is open, and the ports of four of the second material troughs are connected to the ends of the first material troughs. The other end of the second material trough is blocked, serving as the end position of the workpiece arrangement for cooperation with external transfer equipment. The material transfer device is located above the discharge tray and the guide tray. It is used to transfer the workpieces on the guide tray to the discharge tray and also to adjust the arrangement of the workpieces on the guide tray. An industrial camera is positioned above the material handling device to photograph the arrangement of workpieces on the guide tray and discharge tray.

3. The feeding equipment for pad printing of surface mount inductors according to claim 2, characterized in that: A pressure plate is installed on the top of the end of the discharge tray away from the vibrating feed tray, forming a row of single material inlets at the end of the second material trough. The shape of the material inlets is adapted to the shape of the workpiece. The width of the pressure plate must be at least greater than the sum of the side lengths of the three workpieces; Multiple first infrared sensors for monitoring workpieces are installed on the side of the pressure plate away from the material inlet. The number of first infrared sensors is the same as the number of second material troughs, and their positions correspond.

4. The feeding equipment for pad printing of surface mount inductors according to claim 3, characterized in that: The bottom of the second material trough, away from the vibrating feeding plate, is provided with a first through hole. The first through hole is located on the side of the material inlet closer to the upstream side. The distance between the center of the first through hole and the center of the material inlet is the same as the center distance between the two adjacent workpieces. The bottom surface of the discharge tray is equipped with a clamping structure, which includes a first cylinder. The piston rod end of the first cylinder is equipped with a support plate. Multiple first push rods are fixed on the top surface of the support plate. The position of the first push rod corresponds to the position of the first through hole and the shape is adapted. The first cylinder is used to drive the first push rod to move upward, which is used to clamp and fix the workpiece arranged in the second position.

5. The feeding equipment for pad printing of surface mount inductors according to claim 4, characterized in that: The bottom of the second material trough is inclined downward in a direction away from the first material trough, with an inclination angle of less than 2°. The bottom of the groove corresponding to the material inlet and the first perforation is flush with the horizontal plane and smoothly transitions to the lower inclined end.

6. The feeding equipment for pad printing of surface mount inductors according to claim 5, characterized in that: A second spring is fitted onto the guide rod, and the second spring is located between the limiting plate and the top surface of the support frame; A ring-shaped electromagnet is arranged around the top outer side of the guide hole, a second spring is located at the inner ring of the electromagnet, a limiting plate is located above the electromagnet, and a magnet is fixed on the bottom surface of the limiting plate. When the clamping part is not subjected to external force, the bottom end of the second push rod is not higher than the bottom end of the suction nozzle, and there is a gap of at least the thickness of the workpiece between the magnet block and the electromagnet. When energized, the electromagnet has the opposite magnetism to the magnet block, and the magnetic attraction force is used to overcome the elastic force of the second spring, causing the clamping part to move down.

Images