A continuous feeding system for multi-width segmented flexible light strips

Abstract

The present invention discloses a continuous feeding system for a multi-width segmented flexible light strip, which belongs to the field of flexible light strip feeding devices, and includes a continuous feeding device, a negative pressure manipulator and a negative pressure conveying device, wherein the negative pressure manipulator is arranged between the continuous feeding device and the negative pressure conveying device; the continuous feeding device includes a silo bottom plate, and the top surface of the silo bottom plate is movably connected with a material lifting bottom plate, a lifting drive assembly is arranged below the silo bottom plate to drive the lifting of the material lifting bottom plate, a material reference baffle is fixedly connected to one side of the top surface of the silo bottom plate, and a material height sensor is fixedly connected to the side edge position of the material reference baffle, a movable silo baffle is arranged above the other side of the top surface of the silo bottom plate, and a lifting adjustment assembly is arranged between the movable silo baffle and the silo bottom plate to adjust the height of the movable silo baffle. The present invention can be applied to flexible light strips of different widths for continuous feeding, and has a simple structure and stable feeding.

Description

Technical Field

[0001] The invention relates to a flexible light strip feeding device, in particular to a continuous feeding system for multi-width segmented flexible light strips. Background Art

[0002] As LEDs are used more and more widely in today's society, there are more and more types of LED light strips. Among them, LED light strips are divided into two types according to the hardness of the material, namely flexible light strips and rigid light strips. Flexible light strips refer to LEDs assembled on strip-shaped FPCs (flexible circuit boards), and rigid light strips refer to LEDs assembled on strip-shaped PCB hard boards. They are gradually recognized in various decoration industries because of their green and environmental protection.

[0003] During production, the long flexible light strips are cut into sections according to demand before processing. In order to ensure the continuity of feeding during the processing, the flexible light strips need to be placed on the corresponding feeding device in advance for continuous feeding.

[0004] However, the traditional flexible light strip feeding device cannot be used for flexible light strips of different widths. Different flexible light strips need to match feeding devices of different specifications, which results in more installation sites. Therefore, those skilled in the art provide a continuous feeding system for multi-width segmented flexible light strips to solve the problems mentioned in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide a continuous feeding system for multi-width segmented flexible light strips, which can be applicable to continuous feeding of flexible light strips of different widths and has a simple structure and stable feeding, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A continuous feeding system for a multi-width segmented flexible light strip, comprising a continuous feeding device, a negative pressure manipulator and a negative pressure conveying device, wherein the negative pressure manipulator is arranged between the continuous feeding device and the negative pressure conveying device;

[0008] The continuous feeding device includes a silo bottom plate, and the top surface of the silo bottom plate is movably connected to a material lifting bottom plate, a lifting drive assembly is provided below the silo bottom plate to drive the material lifting bottom plate to lift, a material reference baffle is fixedly connected to one side of the top surface of the silo bottom plate, and a material height sensor is fixedly connected to the side edge of the material reference baffle, a movable silo baffle is provided above the other side of the top surface of the silo bottom plate, and a lifting adjustment assembly is provided between the movable silo baffle and the silo bottom plate to adjust the height of the movable silo baffle, and the top surfaces of the material reference baffle and the movable silo baffle are both provided with paging sheets;

[0009] The negative pressure conveying device includes a base, and side panels are fixedly connected to both sides of the top surface of the base, a top plate is fixedly connected between the top ends of the two opposite sides of the side plates, and a negative pressure chamber is opened inside the top plate, a negative pressure strip hole connected to the negative pressure chamber is opened on the top surface of the top plate, and the negative pressure chamber is connected to an external vacuum pumping device, a conveying belt is provided on the top plate between the two side plates, and a plurality of through holes distributed in an array are opened on the top surface of the conveying belt, two parallel width adjustment mechanisms are symmetrically fixedly connected to the top ends of the two top plates, a servo motor is fixedly connected to one side of the bottom end surface of the base to drive the conveying belt to rotate, and the servo motor adopts fuzzy PID combined with Kalman filter adaptive control to improve anti-interference performance.

[0010] The present application can be applied to continuous feeding of flexible light strips of different widths, and has a simple structure and stable feeding.

[0011] As a further solution of the present invention: the lifting drive assembly specifically includes: a linear guide rail fixed in the middle position of the top end surface of the silo bottom plate, the bottom end of the linear guide rail is fixedly connected to a motor mounting plate, and the bottom end surface of the motor mounting plate is fixedly connected to a through-type stepper motor, the through-type stepper motor is internally provided with a through-type stepper screw connected to it for transmission, and the top end of the through-type stepper screw is fixedly connected to a screw connecting plate, the top sides of the screw connecting plate are fixedly connected to lifting push rods, and the top end of the lifting push rods penetrates the silo bottom plate and is fixedly connected to the material lifting bottom plate, a concave slider is movably clamped on the outer surface of the linear guide rail, and a slider connecting plate is fixedly connected to the side of the concave slider, and the slider connecting plate is fixedly connected to the screw connecting plate.

[0012] When in use, the operation of the lifting drive assembly can push the material lifting base plate to rise for continuous feeding. Specifically, the through-type stepper motor starts and runs, and the through-type stepper screw spirally rises, driving the screw connecting plate to rise. The lifting push rod follows the rise of the screw connecting plate to lift the material lifting base plate, and the flexible light strip placed on the material lifting base plate is also continuously lifted up. In addition, during the rising process of the screw connecting plate, the concave slider is driven to follow the rise on the linear guide rail through the slider connecting plate, which not only improves the stability of the screw connecting plate during the rising process but also avoids deviation in the rising direction.

[0013] As a further solution of the present invention: snap-in rail grooves are symmetrically provided in the middle positions of the two side surfaces of the linear guide rail, and snap-in moving blocks are fixedly connected to the inner walls on both sides of the concave sliding block at the positions corresponding to the snap-in rail grooves, and the snap-in moving blocks are movable inside the snap-in rail grooves.

[0014] As the concave slider follows the rise on the linear guide rail, the card-jointed moving block also follows the rise inside the card-jointed rail groove. The coordinated use of the card-jointed rail groove and the card-jointed moving block can prevent the concave slider from detaching from the linear guide rail.

[0015] As a further solution of the present invention: the lifting and adjusting component specifically includes: two ear plates fixed in parallel on the side of the silo bottom plate, a lifting baffle rod is arranged through the inside of the ear plate, and a positioning piece is provided on one side of the ear plate to fix the position of the lifting baffle rod in the ear plate, and the top end of the lifting baffle rod is fixedly connected to the movable silo baffle.

[0016] By adjusting the position of the lifting baffle rod in the ear plate, the height of the movable silo baffle can be adjusted to adapt to flexible light strips of different heights.

[0017] As a further solution of the present invention: the positioning member specifically includes: a positioning hole and a positioning pin, the positioning holes are multiple in number and are vertically and evenly arranged on the outer side of the lifting lever, the positioning pin is located on one side of the ear plate, and one end of the positioning pin passes through the ear plate and is inserted into one of the positioning holes.

[0018] The height of the lifting and lowering lever can be adjusted by screwing out the positioning pin. After the lifting and lowering lever is adjusted to a suitable height, the positioning pin is passed through the ear plate and screwed into the corresponding positioning hole to fix the lifting and lowering lever.

[0019] As a further solution of the present invention: the bottom end surface of the ear plate is fixedly connected with a linear sliding bearing, and the bottom end of the lifting and lowering stop rod passes through the linear sliding bearing and is fixedly connected with a stop block.

[0020] The provision of the linear sliding bearing can limit the lifting direction of the lifting stop rod while reducing friction, thereby avoiding directional deviation, while the provision of the stop block can prevent the lifting stop rod from separating from the linear sliding bearing.

[0021] As a further solution of the present invention: a positioning baffle is fixedly connected to a position close to the edge of one side of the top surface of the silo bottom plate, and the top end of the positioning baffle passes through the material lifting bottom plate.

[0022] The positioning stopper rod can support one end of the flexible light strip to prevent it from falling off, and can facilitate the front and back alignment of the flexible light strip.

[0023] As a further solution of the present invention: a handle is fixedly connected to the middle position of one side of the movable silo baffle.

[0024] The setting of the handle can facilitate the staff to pull up and down the movable silo baffle.

[0025] As a further solution of the present invention: the width adjustment mechanism specifically includes: a fixing seat fixed on the top surface of the top plate, two vertically parallel adjustment positioning holes are opened on the side of the fixing seat, and an adjustment plate is provided on one side of the fixing seat, a transverse strip hole is opened on one side of the adjustment plate corresponding to the position of the adjustment positioning hole, and the adjustment plate and the fixing seat are fixed together by implanting screws in the transverse strip hole and the adjustment positioning hole and tightening them, and the adjustment plate and one side of the fixing seat are both provided with an inclined surface.

[0026] Loosen the screws in the horizontal strip holes, move the adjustment plate, adjust the distance between the two adjustment plates to adapt to flexible light strips of different widths, and finally tighten the screws to fasten the adjustment plate. When the negative pressure manipulator puts down the flexible light strip, the flexible light strip will automatically correct its position along the inclined surface of the adjustment plate under the action of gravity and the inclined surface.

[0027] As a further solution of the present invention: the transfer function model of the servo motor is:

[0028]

[0029] Among them, C m —Torque coefficient (N·m / A); L a —Armature winding inductance (H); R a —Armature winding resistance (Ω); J m —Total moment of inertia on the motor shaft (including the inertia of the rotor and load) (kg·m 2 );K b —Back EMF coefficient (V·s / rad).

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. This application is compatible with a variety of flexible light strip sizes and is suitable for flexible light strips of different widths to meet the continuous loading of flexible light strips.

[0032] 2. Compared with the traditional flexible light strip feeding device, the present application eliminates the light strip clamping fixture in the middle link, and only requires simple positioning in the X and Y directions, reducing unnecessary waste of resources.

[0033] 3. The present application greatly simplifies the continuous loading of complex segmented LED flexible light strips, and has a simple structure, low manufacturing cost, and simple and convenient operation.

[0034] 4. Since the present application is compatible with a variety of flexible light strip sizes for continuous feeding, compared to traditional feeding devices, it does not require each specification of light strip to be equipped with a set of special fixtures. It only needs to place the light strip directly on the material lifting base plate, which brings convenience to production operators, reduces the cost of equipment, and reduces the installation site of equipment from multiple to one, reducing the cost of factory land and electricity personnel, and can ensure the fast and safe shipment of products.

[0035] 5. This application is not only used in the LED industry, but can also be fully used in PCB, new energy, SMT, SMD and other flexible material equipment industries, which greatly expands the use occasions of this appearance and gives full play to the compatibility and flexibility of this appearance.

[0036] 6. This application greatly meets the requirements of multi-width flexible light strips compatible with track transportation in the production process, with a simple structure and low cost.

[0037] 7. Through the set lifting and adjusting components, the height of the movable silo baffle can be adjusted quickly and easily according to needs.

[0038] 8. Through the negative pressure conveying device, the width adjustment mechanism thereon can be compatible with a variety of flexible light strip sizes for continuous conveying, and the negative pressure conveying can improve the stability of the flexible light strip during movement.

[0039] 9. In the negative pressure conveying device of the present application, the conveying belt is driven by a servo motor, and the servo motor adopts fuzzy PID combined with Kalman filter adaptive control to improve anti-interference performance, thereby improving the stability of the conveying belt during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of a continuous feeding system for a multi-width segmented flexible light strip;

[0041] Figure 2 A side view of a continuous feeding device of a continuous feeding system for a multi-width segmented flexible light strip;

[0042] Figure 3 A view showing the combination of a lifting drive assembly and a silo bottom plate in a continuous feeding system of a multi-width segmented flexible light strip;

[0043] Figure 4 A combined view of a movable silo baffle and a flexible light strip in a continuous feeding system of a multi-width segmented flexible light strip;

[0044] Figure 5 It is a structural schematic diagram of a lifting and driving component in a continuous feeding system of a multi-width segmented flexible light strip;

[0045] Figure 6It is a continuous feeding system for multi-width segmented flexible light strips. Figure 5 A magnified view of middle;

[0046] Figure 7 It is a structural schematic diagram of a lifting and adjusting component in a continuous feeding system of a multi-width segmented flexible light strip;

[0047] Figure 8 It is a continuous feeding system for multi-width segmented flexible light strips. Figure 1 A magnified view of middle;

[0048] Fig. 9 It is a block diagram of a servo motor control system in a continuous feeding system of a multi-width segmented flexible light strip;

[0049] Fig.10 It is a transfer function structure diagram of a servo system in a continuous feeding system of a multi-width segmented flexible light strip;

[0050] Fig.11 It is a model diagram of two control systems in a continuous feeding system of a multi-width segmented flexible light strip;

[0051] Fig.12 This is a comparison chart of the results of two control systems in a continuous feeding system for a multi-width segmented flexible light strip.

[0052] In the figure: 1. Material height sensor; 2. Material reference baffle; 3. Material lifting bottom plate; 4. Bin bottom plate; 5. Lifting drive assembly; 501. Screw connecting plate; 502. Lifting push rod; 503. Motor mounting plate; 504. Through-type stepping motor; 505. Through-type stepping screw; 506. Linear guide; 5061. Snap-fit ​​rail groove; 507. Concave slider; 5071. Snap-fit ​​moving block; 508. Slider connecting plate; 6. Paging sheet; 7. Movable Silo baffle; 8. Positioning baffle; 9. Flexible light strip; 10. Ear plate; 11. Linear sliding bearing; 12. Lifting baffle; 13. Positioning hole; 14. Block; 15. Positioning pin; 16. Handle; 17. Negative pressure manipulator; 18. Base; 19. Side plate; 20. Top plate; 21. Conveyor belt; 22. Through hole; 23. Negative pressure strip hole; 24. Fixed seat; 25. Adjustment positioning hole; 26. Adjustment plate; 27. Horizontal strip hole; 28. Servo motor. DETAILED DESCRIPTION

[0053] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0054] See also Figures 1 to 12In an embodiment of the present invention, a continuous feeding system for a multi-width segmented flexible light strip includes a continuous feeding device, a negative pressure manipulator 17 and a negative pressure conveying device, wherein the negative pressure manipulator 17 is arranged between the continuous feeding device and the negative pressure conveying device; the continuous feeding device includes a silo bottom plate 4, the top surface of the silo bottom plate 4 is movably connected with a material lifting bottom plate 3, and a lifting drive assembly 5 is provided below the silo bottom plate 4 to drive the material lifting bottom plate 3 to rise and fall; a material reference baffle 2 is fixedly connected to one side of the top surface of the silo bottom plate 4, and a material height sensor 1 is fixedly connected to the side edge position of the material reference baffle 2, a movable silo baffle 7 is provided above the other side of the top surface of the silo bottom plate 4, and a lifting adjustment assembly is provided between the movable silo baffle 7 and the silo bottom plate 4 to adjust the height of the movable silo baffle 7, the material reference baffle 2 and the movable material The top surface of the bin baffle 7 is provided with a paging sheet 6; the negative pressure conveying device includes a base 18, and the top surface of the base 18 is fixedly connected with side panels 19 on both sides, and a top plate 20 is fixedly connected between the tops of the opposite sides of the two side panels 19, and a negative pressure cavity is opened inside the top plate 20, and a negative pressure strip hole 23 connected to the negative pressure cavity is opened on the top surface of the top plate 20, and the negative pressure cavity is connected to the external vacuum equipment, and a conveying belt 21 is provided on the top plate 20 between the two side panels 19, and a plurality of through holes 22 distributed in an array are opened on the top surface of the conveying belt 21, and two parallel width adjustment mechanisms are symmetrically fixedly connected to the top surfaces of the two top plates 20, and a servo motor 28 is fixedly connected to one side of the bottom end surface of the base 18 to drive the conveying belt 21 to rotate, and the servo motor 28 adopts fuzzy PID combined with Kalman filter adaptive control to improve anti-interference. The present application can be applied to flexible light strips 9 of different widths for continuous feeding, and the structure is simple and the feeding is stable.

[0055] In this embodiment: the lifting drive assembly 5 specifically includes: a linear guide rail 506 fixed in the middle position of the top surface of the silo bottom plate 4, the bottom end of the linear guide rail 506 is fixedly connected to the motor mounting plate 503, and the bottom end surface of the motor mounting plate 503 is fixedly connected to the through-type stepping motor 504, the through-type stepping motor 504 is provided with a through-type stepping screw 505 which is transmission-connected thereto, and the top of the through-type stepping screw 505 is fixedly connected to the screw connecting plate 501, the top sides of the screw connecting plate 501 are fixedly connected to the lifting push rod 502, and the top of the lifting push rod 502 penetrates the silo bottom plate 4 and is fixedly connected to the material lifting bottom plate 3, a concave slider 507 is movably clamped on the outer surface of the linear guide rail 506, and the side of the concave slider 507 is fixedly connected to the slider connecting plate 508, and the slider connecting plate 508 is fixedly connected to the screw connecting plate 501. When in use, the operation of the lifting drive assembly 5 can push the material lifting base plate 3 to rise for continuous feeding, specifically: the through-type stepper motor 504 starts running, the through-type stepper screw 505 spirally rises, driving the screw connecting plate 501 to rise, and the lifting push rod 502 follows the rise of the screw connecting plate 501 to lift the material lifting base plate 3, and the flexible light strip 9 placed on the material lifting base plate 3 is also continuously lifted up. In addition, during the rising process of the screw connecting plate 501, the concave slider 507 is driven to follow the rise on the linear guide rail 506 through the slider connecting plate 508, which not only improves the stability of the rising process of the screw connecting plate 501 but also avoids deviation in the rising direction.

[0056] In this embodiment, the middle positions of the two side surfaces of the linear guide rail 506 are symmetrically provided with engaging rail grooves 5061, and the inner walls of the two sides of the concave slider 507 are fixedly connected with engaging moving blocks 5071 corresponding to the positions of the engaging rail grooves 5061, and the engaging moving blocks 5071 are movable in the engaging rail grooves 5061. When the concave slider 507 follows the rise on the linear guide rail 506, the engaging moving blocks 5071 also rise in the engaging rail grooves 5061, and the coordinated use of the engaging rail grooves 5061 and the engaging moving blocks 5071 can prevent the concave slider 507 from being separated from the linear guide rail 506.

[0057] In this embodiment, the lifting and adjusting assembly specifically includes: two ear plates 10 fixed in parallel on the side of the silo bottom plate 4, a lifting and lowering bar 12 is provided inside the ear plate 10, and a positioning piece is provided on one side of the ear plate 10 to fix the position of the lifting and lowering bar 12 in the ear plate 10, and the top of the lifting and lowering bar 12 is fixedly connected to the movable silo baffle 7. By adjusting the position of the lifting and lowering bar 12 in the ear plate 10, the height of the movable silo baffle 7 can be adjusted, thereby adapting to the flexible light strips 9 of different heights.

[0058] In this embodiment, the positioning member specifically includes a positioning hole 13 and a positioning pin 15. The number of the positioning holes 13 is multiple and they are evenly vertically opened on the outer surface of the lifting and lowering block rod 12. The positioning pin 15 is located on one side of the ear plate 10, and one end of the positioning pin 15 passes through the ear plate 10 and is inserted into a positioning hole 13. The height of the lifting and lowering block rod 12 can be adjusted by screwing out the positioning pin 15. After the lifting and lowering block rod 12 is adjusted to a suitable height, the positioning pin 15 passes through the ear plate 10 and is screwed into the corresponding positioning hole 13 to fix the lifting and lowering block rod 12.

[0059] In this embodiment: the bottom end surface of the ear plate 10 is fixedly connected with a linear sliding bearing 11, and the bottom end of the lifting and lowering stopper rod 12 passes through the linear sliding bearing 11 and is fixedly connected with a stopper 14. The provision of the linear sliding bearing 11 can limit the lifting and lowering direction of the lifting and lowering stopper rod 12 under the premise of reducing friction, and avoid directional deviation, and the provision of the stopper 14 can prevent the lifting and lowering stopper rod 12 from being separated from the linear sliding bearing 11.

[0060] In this embodiment, a positioning bar 8 is fixedly connected to one side of the top surface of the silo bottom plate 4 near the edge, and the top of the positioning bar 8 passes through the material lifting bottom plate 3. The positioning bar 8 can support one end of the flexible light strip 9 to prevent it from detaching, and can facilitate the front and rear alignment of the flexible light strip 9.

[0061] In this embodiment: a handle 16 is fixedly connected to the middle position of one side of the movable silo baffle 7. The setting of the handle 16 can facilitate the staff to pull the movable silo baffle 7 up and down.

[0062] In this embodiment: Figure 8 As shown, the width adjustment mechanism specifically includes: a fixing seat 24 fixed on the top surface of the top plate 20, two vertically parallel adjustment positioning holes 25 are provided on the side of the fixing seat 24, and an adjustment plate 26 is provided on one side of the fixing seat 24, and a transverse strip hole 27 is provided on one side of the adjustment plate 26 corresponding to the position of the adjustment positioning hole 25, and the adjustment plate 26 and the fixing seat 24 are fixed together by inserting screws in the transverse strip hole 27 and the adjustment positioning hole 25 and tightening them, and the adjustment plate 26 and one side of the fixing seat 24 are both provided with an inclined surface. Loosen the screws in the transverse strip hole 27, move the adjustment plate 26, adjust the spacing between the two relative adjustment plates 26 to adapt to the flexible light strips 9 of different widths, and finally tighten the screws to tighten the adjustment plate 26. When the negative pressure manipulator 17 puts down the flexible light strip 9, under the action of gravity and the inclined surface, the flexible light strip 9 automatically corrects and positions along the inclined surface of the adjustment plate 26.

[0063] In this embodiment, the servo motor 28 is used as the controlled object and is connected to an external PID controller and a Kalman filter to form a control system. Fig. 9 As shown, the transfer function model of the servo motor 28 is:

[0064]

[0065] Among them, C m —Torque coefficient (N·m / A); L a —Armature winding inductance (H); R a —Armature winding resistance (Ω); J m —Total moment of inertia on the motor shaft (including the inertia of the rotor and load) (kg·m 2 );K b —Back EMF coefficient (V·s / rad).

[0066] The servo motor 28 can output position information and speed information. Since the position information is obtained by integrating the speed information once, it is not difficult to give the transfer function structure of the servo system, such as Fig.10 shown.

[0067] Since this application mainly focuses on the speed control of the conveyor belt 21, it is sufficient to analyze the speed loop of the servo system. Fig.10 It can be seen that the transfer function of the servo motor 28 speed loop is:

[0068]

[0069] The C of the servo motor 28 of the present application m , R a , L a , J m , K b After the parameters are introduced, the transfer function of the servo motor speed loop in this application is obtained as follows: 133 / (s 2 +25s).

[0070] The transfer function, fuzzy PID controller and Kalman filter are modeled. For the convenience of comparison, an ordinary PID controller without fuzzy PID controller and Kalman filter is introduced at the same time. The completed model is as follows: Fig.11 shown.

[0071] The following results were obtained through model calculation:

[0072] The adaptive PID control parameters using fuzzy control Kalman filter are -0.2874, 0.08226, 0.002129 respectively; while the ordinary PID control parameters without fuzzy control Kalman filter are -0.0008306, 0.00083, 2.425*10 -7 From the parameter observation, it is obvious that the D parameter of ordinary PID control is 2.425*10 -7 It has only theoretical value and is difficult to achieve in actual control engineering.

[0073] like Fig.12 As shown, from the responses of the two control systems to step signals and interference signals, it can be seen that the method of the present application has better performance than ordinary PID control in terms of engineering feasibility, stabilization time, and anti-interference / system robustness.

[0074] The working principle of the present invention is: when in use, the flexible light strip 9 is stacked up and down and placed directly on the material lifting bottom plate 3, and then one side of the flexible light strip 9 is aligned with the material reference baffle 2, so that the flexible light strip 9 is positioned in the X direction, and then one end of all the flexible light strips 9 is against the positioning baffle 8, so that the flexible light strip 9 is positioned in the Y direction. Since there is enough spacing between the material reference baffle 2 and the movable silo baffle 7, flexible light strips 9 of various widths can be placed, and the positioning method of the flexible light strip 9 is also simple and convenient. In addition, the lifting baffle 12 under the movable silo baffle 7 can block the flexible light strip 9 to prevent it from detaching from this side. It should be noted that the staff can adjust the height of the movable silo baffle 7 according to the overall height of the flexible light strip 9. Specifically, the height of the lifting baffle 12 can be adjusted by screwing out the positioning pin 15. After the lifting baffle 12 is adjusted to a suitable height, the positioning pin 15 is passed through the ear plate 10 and screwed into the corresponding positioning hole 13 to fix the lifting baffle 12, thereby completing the height adjustment of the movable silo baffle 7.

[0075] Since the material height sensor 1 is installed on the top of the side of the material reference baffle 2, in the working state, when the material height sensor 1 cannot detect the flexible light strip 9, the through-type stepping motor 504 under the silo bottom plate 4 is started, and the through-type stepping screw 505 spirally rises, driving the screw connecting plate 501 to rise, and the lifting push rod 502 follows the screw connecting plate 501 to rise and lift the material lifting bottom plate 3, and the flexible light strip 9 placed on the material lifting bottom plate 3 is also continuously lifted up, and the flexible light strip 9 is close to the material height. The material height sensor 1 is triggered to respond, and the through-type stepping motor 504 stops working. At this time, the negative pressure manipulator 17 takes away the material at a fixed position. Since the material of the flexible light belt 9 is soft, the flexible light belt 9 contacts the paging sheet 6 when the negative pressure manipulator 17 takes away the flexible light belt 9, and the deformed flexible light belt 9 is strongly pulled out of the paging sheet 6 by the negative pressure manipulator 17. The paging sheet 6 is set to page the flexible light belt 9, ensuring that the negative pressure manipulator 17 can only take away one flexible light belt 9 at a time. This is repeated to achieve continuous feeding of the flexible light belt 9.

[0076] The negative pressure chamber is connected to an external vacuum pumping device, which extracts air from the negative pressure chamber to create a negative pressure environment. The negative pressure manipulator 17 places the flexible light strip 9 on the negative pressure conveying device. When the negative pressure manipulator 17 puts down the flexible light strip 9, under the action of gravity and the inclined surface, the flexible light strip 9 automatically corrects its position along the inclined surface of the adjustment plate 26. When the flexible light strip 9 falls on the conveyor belt 21, due to the setting of the negative pressure strip hole 23 and the through hole 22, the flexible light strip 9 is adsorbed on the conveyor belt 21 by the negative pressure, and is conveyed to the next workstation as the conveyor belt 21 rotates. The flexible light strip 9 is driven to rotate by the servo motor 28, and the servo motor 28 adopts fuzzy PID combined with Kalman filter adaptive control to improve anti-interference and ensure the stability of the rotation of the conveyor belt 21.

[0077] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0078] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A continuous feeding system for multi-width segmented flexible light strips, characterized in that: It includes a continuous feeding device, a negative pressure manipulator and a negative pressure conveying device, wherein the negative pressure manipulator is arranged between the continuous feeding device and the negative pressure conveying device; The continuous feeding device includes a silo bottom plate, and the top surface of the silo bottom plate is movably connected to a material lifting bottom plate, a lifting drive assembly is provided below the silo bottom plate to drive the material lifting bottom plate to lift, a material reference baffle is fixedly connected to one side of the top surface of the silo bottom plate, and a material height sensor is fixedly connected to the side edge of the material reference baffle, a movable silo baffle is provided above the other side of the top surface of the silo bottom plate, and a lifting adjustment assembly is provided between the movable silo baffle and the silo bottom plate to adjust the height of the movable silo baffle, and the top surfaces of the material reference baffle and the movable silo baffle are both provided with paging sheets; The negative pressure conveying device comprises a base, and side plates are fixedly connected to both sides of the top surface of the base, a top plate is fixedly connected between the top ends of the two opposite side surfaces of the two side plates, and a negative pressure chamber is opened inside the top plate, a negative pressure strip hole communicating with the negative pressure chamber is opened on the top surface of the top plate, and the negative pressure chamber is connected to an external vacuum pumping device, a conveying belt is arranged on the top plate between the two side plates, and a plurality of through holes distributed in an array are opened on the top surface of the conveying belt, two parallel width adjustment mechanisms are symmetrically fixedly connected to the top ends of the two top plates, a servo motor is fixedly connected to one side of the bottom end surface of the base to drive the conveying belt to rotate, and the servo motor adopts fuzzy PID combined with Kalman filter adaptive control to improve anti-interference performance; The lifting drive assembly specifically includes: a linear guide rail fixed at the middle position of the top end surface of the silo bottom plate, the bottom end of the linear guide rail is fixedly connected to a motor mounting plate, and the bottom end surface of the motor mounting plate is fixedly connected to a through-type stepping motor, the through-type stepping motor is provided with a through-type stepping screw connected to the motor for transmission, and the top end of the through-type stepping screw is fixedly connected to a screw connecting plate, the top ends of the screw connecting plates are fixedly connected to lifting push rods on both sides of the top end surface, and the top ends of the lifting push rods penetrate the silo bottom plate and are fixedly connected to the material lifting bottom plate, a concave slider is movably clamped on the outer side surface of the linear guide rail, and a slider connecting plate is fixedly connected to the side of the concave slider, and the slider connecting plate is fixedly connected to the screw connecting plate; The width adjustment mechanism specifically includes: a fixing seat fixed on the top surface of the top plate, two vertically parallel adjustment positioning holes are provided on the side of the fixing seat, and an adjustment plate is provided on one side of the fixing seat, a transverse strip hole is provided on one side of the adjustment plate corresponding to the position of the adjustment positioning hole, and the adjustment plate and the fixing seat are fixed together by inserting screws in the transverse strip hole and the adjustment positioning hole and tightening them, and the adjustment plate and one side of the fixing seat are both provided with an inclined surface.

2. The continuous feeding system of a multi-width segmented flexible light strip according to claim 1, characterized in that: The middle positions of the two side surfaces of the linear guide rail are symmetrically provided with engaging rail grooves, and the inner walls of the two sides of the concave sliding block are fixedly connected with engaging moving blocks at positions corresponding to the engaging rail grooves, and the engaging moving blocks are movable in the engaging rail grooves.

3. The continuous feeding system of a multi-width segmented flexible light strip according to claim 1, characterized in that: The lifting and adjusting assembly specifically includes: two ear plates fixed in parallel on the side of the silo bottom plate, a lifting baffle rod is arranged through the inside of the ear plate, and a positioning piece is provided on one side of the ear plate to fix the position of the lifting baffle rod in the ear plate, and the top end of the lifting baffle rod is fixedly connected to the movable silo baffle.

4. The continuous feeding system of a multi-width segmented flexible light strip according to claim 3, characterized in that: The positioning member specifically includes: a positioning hole and a positioning pin. The positioning holes are multiple and are evenly vertically opened on the outer side of the lifting and lowering lever. The positioning pin is located on one side of the ear plate, and one end of the positioning pin passes through the ear plate and is inserted into one of the positioning holes.

5. The continuous feeding system of a multi-width segmented flexible light strip according to claim 3, characterized in that: The bottom end surface of the ear plate is fixedly connected with a linear sliding bearing, and the bottom end of the lifting and lowering stop rod passes through the linear sliding bearing and is fixedly connected with a stop block.

6. The continuous feeding system of a multi-width segmented flexible light strip according to claim 1, characterized in that: A positioning baffle is fixedly connected to a position close to the edge of one side of the top surface of the silo bottom plate, and the top end of the positioning baffle passes through the material lifting bottom plate.

7. The continuous feeding system of a multi-width segmented flexible light strip according to claim 1, characterized in that: A handle is fixedly connected to the middle position of one side of the movable silo baffle.

8. The continuous feeding system of a multi-width segmented flexible light strip according to claim 1, characterized in that: The transfer function model of the servo motor is: Among them, C m —Torque coefficient, unit: N·m / A; L a —Armature winding inductance, unit: H; R a —Armature winding resistance, unit: Ω; J m —Total moment of inertia on the motor shaft, including the inertia of the rotor and the load, unit: kg·m 2 ; K b —Back EMF coefficient, unit: V·s / rad.

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