Full-automatic solder paste printing equipment for coil stock lamp strip

Abstract

The utility model discloses full-automatic solder paste printing equipment for a coiled material lamp strip. The full-automatic solder paste printing equipment comprises a material pulling mechanism, a visual positioning mechanism, a calibration mechanism, a lifting mechanism and a solder paste printing mechanism, the material pulling mechanism is used for pulling the coiled material lamp strip, a product positioning seat is arranged on the material pulling mechanism, the coiled material lamp strip is laid on the product positioning seat, and the visual positioning mechanism is used for shooting an image of the coiled material lamp strip on the product positioning seat; the calibration mechanism is connected with the product positioning seat and is used for driving the coil stock lamp strip on the product positioning seat to be aligned with the solder paste printing mechanism; the lifting mechanism is connected with the product positioning seat and used for driving the product positioning seat to move in the direction close to or away from the solder paste printing mechanism. And the solder paste printing mechanism is used for printing solder paste on the surface of the coil stock lamp strip on the product positioning seat. Continuous machining operation can be achieved, manual material pulling is not needed, the automation degree of the device is improved, the mechanical structure is simplified, the overall size of the device is reduced, and the device is suitable for operation in a narrow space.

Description

Technical Field

[0001] This utility model relates to the field of automated processing equipment technology, specifically to a fully automatic solder paste printing equipment for roll-to-roll LED strips. Background Technology

[0002] A solder paste printer is a device that prints solder paste onto the pads of rigid or flexible circuit boards. Its core objective is to form a uniform and consistent layer of solder paste at the soldering locations of electronic components, ensuring a reliable electrical connection after component mounting and reflow soldering. In the production of LED strips, various electronic components, such as small LED chips or control ICs, typically need to be soldered onto the circuit board; therefore, solder paste printers are also used in the manufacturing process of LED strips.

[0003] For the production of LED strips of fixed length, common solder paste printing machines can meet the processing requirements. However, existing solder paste printing machines are not suitable for printing solder paste on infinitely long roll LED strips. Currently, the existing technology for printing solder paste on infinitely long roll LED strips typically involves manually pulling the strip. After the solder paste printing machine processes one section, the next section is manually pulled to the corresponding printing position on the machine, and then the machine prints solder paste on the next section. This method has a low degree of automation, resulting in low processing efficiency. To achieve automated processing, some manufacturers have introduced a method that equips the solder paste printing machine with a robotic arm to pull the strip, enabling automatic and continuous processing. However, the purchase cost of the robotic arm is high, which increases the production cost of the LED strip and hinders market competitiveness. Moreover, the external robotic arm inevitably increases the size of the equipment, making it unsuitable for use in confined spaces and causing significant difficulties in assembly and transportation. Utility Model Content

[0004] To address some or all of the problems existing in the prior art, this utility model provides a fully automatic solder paste printing equipment for roll LED strips, including a machine base. The machine base is equipped with a pulling mechanism, a vision positioning mechanism, a calibration mechanism, a lifting mechanism, and a solder paste printing mechanism. The pulling mechanism is used to pull the roll LED strip laterally within the machine base. A product positioning seat is provided on the pulling mechanism, and the roll LED strip is laid on the product positioning seat. The vision positioning mechanism is used to capture an image of the roll LED strip on the product positioning seat. The calibration mechanism is connected to the product positioning seat and is used to drive the roll LED strip on the product positioning seat to align with the solder paste printing mechanism. The lifting mechanism is connected to the product positioning seat and is used to drive the product positioning seat to move closer to or further away from the solder paste printing mechanism. The solder paste printing mechanism can be connected to the product positioning seat and is used to print solder paste on the surface of the roll LED strip on the product positioning seat.

[0005] As a further improvement of this utility model, the material pulling mechanism includes a material pulling frame connected to the machine base. The material pulling frame is provided with a spreading plate and a pressure roller. The rolled light strip can be laid on the spreading plate, and the pressure roller is used to press the rolled light strip onto the spreading plate. The material pulling frame is provided with a transverse moving component, and a clamping component is provided on the output end of the transverse moving component. The clamping component is used to clamp the rolled light strip on the spreading plate, and the transverse moving component is used to drive the clamping component to move laterally.

[0006] As a further improvement of this utility model, the calibration mechanism includes a mounting plate, a lateral calibration component, and a longitudinal calibration component. The product positioning seat is connected to the mounting plate, and the mounting plate is slidably connected to the machine base. The lateral calibration component and the longitudinal calibration component are respectively connected to the mounting plate. The lateral calibration component can drive the mounting plate to slide laterally on the machine base, and the longitudinal calibration component can drive the mounting plate to slide longitudinally on the machine base.

[0007] As a further improvement of this utility model, the lifting mechanism includes a lifting fixed frame, which is connected to the mounting plate. The lifting fixed frame is provided with a lifting drive assembly, and the output end of the lifting drive assembly is provided with a lifting plate. The product positioning seat is connected to the lifting plate.

[0008] As a further improvement of this utility model, the solder paste printing mechanism includes a printing frame connected to the machine base. The printing frame is provided with a screen and a brush head lateral movement module. The output end of the brush head lateral movement module is provided with a brush head lifting module. The output end of the brush head lifting module is provided with a scraper. The brush head lifting module is used to drive the scraper to connect with the screen, and the brush head lateral movement module is used to drive the scraper to move laterally on the screen.

[0009] As a further improvement of this utility model, the printing frame is provided with a screen frame, the screen is placed on the screen frame, and the printing frame is provided with a plurality of tension cylinders. The output end of the tension cylinder can abut against the upper end surface of the screen, and the tension cylinder is used to limit the screen on the screen frame.

[0010] As a further improvement of this utility model, the visual positioning mechanism includes a visual camera, a front and rear drive module is provided on the printing frame, a cleaning mounting base is provided on the output end of the front and rear drive module, a left and right camera module is provided on the cleaning mounting base, the visual camera is connected to the output end of the left and right camera module, the front and rear drive module can drive the visual camera to move back and forth on the printing frame, and the left and right camera module can drive the visual camera to move left and right on the printing frame. The visual camera is used to capture the positioning point on the screen and to capture the image of the roll light strip on the product positioning seat.

[0011] As a further improvement of this utility model, the cleaning mounting base is provided with a screen cleaning mechanism. The screen cleaning mechanism includes a cleaning fixing frame, which is fixedly connected to the cleaning mounting base. The cleaning fixing frame is provided with an unwinding roller, a winding roller, a lifting cylinder, and a winding motor. A cleaning top plate is provided on the output end of the lifting cylinder. The unwinding roller is used to place the roll of wiping cloth. The wiping cloth on the unwinding roller can be stretched and laid sequentially on the cleaning top plate and the winding roller. The output end of the winding motor is connected to the winding roller and is used to drive the winding roller to rotate. The lifting cylinder is used to drive the cleaning top plate to contact the lower end surface of the screen. The front and rear drive modules can drive the cleaning top plate to slide on the lower end surface of the screen.

[0012] As a further improvement of this utility model, the cleaning top plate is provided with a cavity, and an exhaust fan is provided at one end of the cleaning top plate. The exhaust fan is used to extract air from the cavity. The upper surface of the cleaning top plate is provided with a plurality of adsorption holes, which are connected to the cavity and can be connected to the mesh plate respectively.

[0013] As a further improvement of this utility model, the printing frame is provided with a cleaning fluid output mechanism, which is used to output cleaning fluid to the cleaning top plate; the cleaning fluid output mechanism includes a cleaning fluid transverse movement module, which is connected to the printing frame, and the output end of the cleaning fluid transverse movement module is provided with a liquid outlet pipe, which is located directly above the cleaning top plate, and the liquid outlet pipe is connected to the cleaning fluid.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a material-pulling mechanism to automatically and continuously pull roll LED strips onto the product positioning seat, enabling continuous automated processing without manual material handling. This enhances the automation level of the equipment and improves processing efficiency. Compared to an external robotic arm, it simplifies the mechanical structure, reduces manufacturing costs, and improves market competitiveness. It also reduces the overall size of the equipment, making it suitable for operation in confined spaces and improving the convenience of assembly and handling. During processing, the roll LED strip is stretched and laid onto the product positioning seat. A vision positioning mechanism photographs the roll LED strip on the product positioning seat to determine its position and whether it corresponds to the solder paste printing mechanism. Then, a calibration component calibrates the alignment of the roll LED strip on the product positioning seat with the solder paste printing mechanism. A lifting mechanism then connects the product positioning seat to the solder paste printing mechanism. The solder paste printing mechanism then prints solder paste onto the roll LED strip. Finally, the lifting mechanism resets the product positioning seat and the roll LED strip, completing one round of solder paste printing for the roll LED strip. After completing one round of solder paste printing, the LED strip is pulled out of the machine by a pulling mechanism. Simultaneously, the pulling mechanism stretches and lays the next unprocessed LED strip onto the product positioning seat. Then, the next section of the LED strip is printed with solder paste using a combination of a vision positioning mechanism, a calibration mechanism, a lifting mechanism, and a solder paste printing mechanism. This process is repeated to achieve continuous automatic processing. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a front view structural diagram of an embodiment of the present utility model;

[0019] Figure 3 This is a three-dimensional structural schematic diagram from another perspective of an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the feeding mechanism in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the material pulling mechanism, calibration mechanism, and lifting structure in an embodiment of this utility model;

[0022] Figure 6 This is a schematic diagram of the material pulling frame in an embodiment of this utility model;

[0023] Figure 7 yes Figure 5 A magnified structural diagram of part A in the middle;

[0024] Figure 8 This is a schematic diagram of the lifting mechanism in an embodiment of this utility model;

[0025] Figure 9 This is a schematic diagram of the structure of the visual positioning mechanism, solder paste printing mechanism and stencil cleaning mechanism in the embodiments of this utility model;

[0026] Figure 10 yes Figure 9 Another perspective structural diagram;

[0027] Figure 11 This is a schematic diagram of the structure of the screen cleaning mechanism in an embodiment of this utility model;

[0028] Figure 12 This is a schematic diagram of the internal structure of the cleaning top plate in an embodiment of this utility model. Detailed Implementation

[0029] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0030] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] like Figure 1-12As shown, a fully automatic solder paste printing equipment for roll LED strips includes a machine base 1. A feeding mechanism 2 is provided on one side of the machine base 1, and a discharge buffer mechanism 3 is provided on the other side. The feeding mechanism 2 is used to place the roll LED strips to be processed, and the discharge buffer mechanism 3 is used to buffer the roll LED strips with printed solder paste for the lower machine, so that the lower machine can process the roll LED strips with printed solder paste. The machine 1 is equipped with a material pulling mechanism 4, a vision positioning mechanism 5, a calibration mechanism 6, a lifting mechanism 7, and a solder paste printing mechanism 8. The material pulling mechanism 4 is used to pull the roll of LED strip from the feeding mechanism 2 towards the discharge buffer mechanism 3. The material pulling mechanism 4 is equipped with a product positioning seat 10, and the roll of LED strip on the feeding mechanism 2 can be laid onto the product positioning seat 10. The vision positioning mechanism 5 is used to capture an image of the roll of LED strip on the product positioning seat 10. The calibration mechanism 6 is connected to the product positioning seat 10 and is used to drive the roll of LED strip on the product positioning seat 10 to align with the solder paste printing mechanism 8. The lifting mechanism 7 is connected to the product positioning seat 10 and is used to drive the product positioning seat 10 to move closer to or further away from the solder paste printing mechanism 8. The solder paste printing mechanism 8 can be connected to the product positioning seat 10 and is used to print solder paste on the surface of the roll of LED strip on the product positioning seat 10.

[0033] Before processing, the roll of LED strip is placed on the feeding mechanism 2, and one end of the roll of LED strip is stretched and laid on the product positioning seat 10. The visual positioning mechanism 5 takes a picture of the roll of LED strip on the product positioning seat 10 to determine whether its position corresponds to the solder paste printing mechanism 8. Then, the calibration mechanism 6 drives the roll of LED strip on the product positioning seat 10 to align with the solder paste printing mechanism 8. Then, the lifting mechanism 7 drives the product positioning seat 10 to connect with the solder paste printing mechanism 8. Then, the solder paste printing mechanism 8 prints solder paste on the roll of LED strip. Finally, the lifting mechanism 7 drives the product positioning seat 10 and the roll of LED strip to reset, completing one round of solder paste printing for the roll of LED strip. After completing one round of solder paste printing, the pulling mechanism 4 pulls the LED strip roll towards the output buffer mechanism 3. The processed LED strip roll enters the output buffer mechanism 3 for buffering, so that the lower-level machine can process the LED strip roll with printed solder paste. At the same time, the pulling mechanism 4 stretches and lays the next unprocessed LED strip onto the product positioning seat 10. Then, the solder paste printing task of the next LED strip roll is completed through the cooperation of the vision positioning mechanism 5, the calibration mechanism 6, the lifting mechanism 7, and the solder paste printing mechanism 8. The above processing process is repeated to achieve continuous automatic processing.

[0034] This fully automatic solder paste printing equipment for roll LED strips can automatically and continuously pull the roll LED strips onto the product positioning seat 10 through the cooperation of the feeding mechanism 2 and the pulling mechanism 4, thereby realizing continuous automated processing without manual material pulling, improving the automation level of the equipment and increasing processing efficiency.

[0035] like Figure 4As shown, the feeding mechanism 2 includes a feeding base 21, on which a feeding motor 22 and a rotatable feeding roller 23 are mounted. The output end of the feeding motor 22 is connected to the feeding roller 23, and the feeding motor 22 can drive the feeding roller 23 to rotate on the feeding base 21. Before processing, the rolled light strip is placed on the feeding roller 23. By controlling the operation of the feeding motor 22, the feeding roller 23 can be driven to rotate, thereby unwinding the rolled light strip so that the pulling mechanism 4 can pull the rolled light strip.

[0036] Material shortage sensors 24 are respectively provided at the upper and lower ends of the feeding fixture 21. When the material shortage sensor 24 at the upper end of the feeding fixture 21 detects a material shortage, it means that the rolled light strip on the feeding roller 23 has been exhausted. The material shortage sensor 24 at the upper end of the feeding fixture 21 promptly reminds the operator to replace the rolled light strip. When the material shortage sensor 24 at the lower end of the feeding fixture 21 detects a material shortage, it means that the pulling mechanism 4 has pulled away the buffer part of the rolled light strip between the feeding fixture 21 and the machine base 1. At this time, the feeding motor 22 can be controlled to work, drive the feeding roller 23 to rotate, release the rolled light strip, and refill the buffer part of the rolled light strip so that the pulling mechanism 4, the calibration mechanism 6 and the lifting mechanism 7 can work stably.

[0037] like Figure 1 As shown, the discharge buffer mechanism 3 includes a buffer fixing frame 31, and a buffer receiving trough 32 is provided on the buffer fixing frame 31; the pulling mechanism 4 can pull the processed roll light strip into the buffer receiving trough 32, and collect the processed roll light strip through the buffer receiving trough 32 to complete the unloading process.

[0038] like Figure 5-6 As shown, the material pulling mechanism 4 includes a material pulling frame 41, which is connected to the machine base 1. The material pulling frame 41 is equipped with a spreading plate 42 and a pressure roller 43. The rolled light strip on the feeding mechanism 2 can be laid on the spreading plate 42, and the pressure roller 43 is used to press the rolled light strip onto the spreading plate 42. During processing, the rolled light strip on the feeding roller 23 can be laid sequentially onto the spreading plate 42 and the product positioning seat 10. The pressure roller 43 presses the rolled light strip onto the spreading plate 42, so that the rolled light strip can be laid flat on the product positioning seat 10. The product positioning seat 10 is externally connected to a negative pressure device, so that the product positioning seat 10 can hold the rolled light strip, thereby avoiding the problem of the rolled light strip shifting during processing.

[0039] The material pulling frame 41 is provided with a transverse moving component 44, and a clamping component 45 is provided on the output end of the transverse moving component 44. The clamping component 45 is used to clamp the rolled light strip on the material spreading plate 42, and the transverse moving component 44 is used to drive the clamping component 45 to move laterally. During the processing, the LED strip on the feeding roller 23 is first stretched and laid onto the laying plate 42 and the product positioning seat 10, and the LED strip is held in place by the product positioning seat 10. Then, the LED strip on the product positioning seat 10 is printed with solder paste by the cooperation of the vision positioning mechanism 5, the calibration mechanism 6, the lifting mechanism 7 and the solder paste printing mechanism 8. After the LED strip on the product positioning seat 10 has completed the solder paste printing and reset, the product positioning seat 10 is controlled to release the LED strip. Then, the LED strip is held by the clamping component 45, and the clamping component 45 is driven to move laterally by the transverse component 44, thereby pulling the LED strip laterally so that the next section of LED strip without solder paste is laid on the product positioning seat 10. Then, the clamping component 45 releases the LED strip and the clamping component 45 is driven to reset in the opposite direction by the transverse component 44, completing one round of pulling action. The above process is repeated to realize the continuous automatic pulling process. The cooperation of the transverse component 44 and the clamping component 45 can pull the roll light strip to move laterally on the laying plate 42, thereby stretching the roll light strip sequentially onto the product positioning seat 10, realizing automatic feeding and meeting the processing needs of infinitely long roll light strips; using machines to replace manual operation improves the automation level of the equipment, which can greatly improve processing efficiency and reduce labor costs.

[0040] In this embodiment, there are two material pulling frames 41, which are symmetrically arranged on both sides of the product positioning seat 10. Each material pulling frame 41 is equipped with a transverse moving component 44 and a clamping component 45. By setting two material pulling frames 41, and each material pulling frame 41 is equipped with a transverse moving component 44 and a clamping component 45, the feeding mechanism 2 can meet the processing requirements of feeding materials from either side of the machine base 1. In other words, the positions of the feeding mechanism 2 and the discharge buffer mechanism 3 can be interchanged at will, improving the versatility of processing and meeting the processing needs of some specific locations.

[0041] Specifically, the lateral movement assembly 44 includes a material pulling motor 441, which is fixedly mounted on the material pulling frame 41. A material pulling screw 442 is provided at the output end of the material pulling motor 441, and a material pulling slider 443 is sleeved on the screw 442. The clamping assembly 45 includes a gripper cylinder 451, which is fixedly connected to the material pulling slider 443. When material pulling is required, the gripper cylinder 451 clamps the rolled light strip, and the material pulling motor 441 drives the screw 442 to rotate. The screw 442 drives the material pulling slider 443 to slide, and the slider 443 pulls the gripper cylinder 451 to move laterally, thereby pulling the rolled light strip laterally on the material spreading plate 42, achieving the purpose of moving the rolled light strip.

[0042] To improve clamping stability, in this embodiment, the material pulling slider 443 is equipped with two gripper cylinders 451, which are symmetrically arranged on both sides of the material spreading plate 42. During processing, the two gripper cylinders 451 simultaneously clamp the rolled light strip, thereby clamping both sides of the rolled light strip, improving the stability of material pulling, reducing the possibility of the rolled light strip being pulled off-center, and improving processing efficiency and stability.

[0043] To limit and guide the movement direction of the material pulling slider 443, two parallel material pulling guide rails 444 are arranged on the material pulling frame 41, and the material pulling slider 443 is slidably engaged with the material pulling guide rails 444 respectively. During the operation of the material pulling motor 441, the rotation of the material pulling screw 442 will drive the material pulling slider 443 to slide on the material pulling guide rails 444. The cooperation between the material pulling slider 443 and the material pulling guide rails 444 limits and guides the sliding direction of the material pulling slider 443, thereby ensuring that the pulling direction is consistent and reducing the problem of the coiled light strip being pulled off-center.

[0044] In actual processing, because the output direction of the LED strip on the feeding roller 23 cannot be guaranteed to be consistent, the orientation of each section of LED strip placed on the product positioning seat 10 may deviate during the feeding process. Therefore, before solder paste printing, the position of the LED strip on the product positioning seat 10 needs to be calibrated. The visual positioning mechanism 5 can capture an image of the LED strip on the product positioning seat 10, thereby determining whether the position of the LED strip on the product positioning seat 10 is aligned with the solder paste printing mechanism 8. If they are not aligned, the calibration mechanism 6 can drive the product positioning seat 10 to rotate and swing, thereby adjusting the orientation of the LED strip on the product positioning seat 10 until the position of the LED strip on the product positioning seat 10 is aligned with the solder paste printing mechanism 8.

[0045] like Figure 5 , Figure 7 As shown, the calibration mechanism 6 includes a mounting plate 61, a lateral calibration component 62, and a longitudinal calibration component 63. The mounting plate 61 is slidably connected to the machine base 1, and the product positioning seat 10 is connected to the mounting plate 61. The lateral calibration component 62 and the longitudinal calibration component 63 are respectively connected to the mounting plate 61. The lateral calibration component 62 can drive the mounting plate 61 to slide laterally on the machine base 1, and the longitudinal calibration component 63 can drive the mounting plate 61 to slide longitudinally on the machine base 1. When it is necessary to calibrate the position of the roll LED strip, controlling the lateral calibration component 62 or the longitudinal calibration component 63 alone can drive the mounting plate 61 and the product positioning seat 10 to move laterally or longitudinally. If the lateral calibration component 62 and the longitudinal calibration component 63 are controlled to work simultaneously, the mounting plate 61 and the product positioning seat 10 can be driven to rotate and swing on the machine base 1 until the roll LED strip on the product positioning seat 10 is aligned with the solder paste printing mechanism 8.

[0046] Specifically, the lateral calibration assembly 62 includes a lateral calibration motor 621 connected to the machine base 1. A lateral calibration lead screw 622 is mounted on the output end of the lateral calibration motor 621, and a lateral calibration slider 623 is sleeved on the lateral calibration lead screw 622. The lateral calibration slider 623 is slidably limited and connected to the machine base 1. A longitudinal calibration guide rail 624 is mounted on the mounting plate 61, and a lateral push block 625 is slidably mounted on the longitudinal calibration guide rail 624. The lateral push block 625 is hinged to the lateral calibration slider 623. The longitudinal calibration assembly 63 includes a longitudinal calibration motor 631 connected to the machine base 1. A longitudinal calibration lead screw is mounted on the output end of the longitudinal calibration motor 631, and a longitudinal calibration slider 632 is sleeved on the longitudinal calibration lead screw. The longitudinal calibration slider 632 is slidably limited and connected to the machine base 1. A lateral calibration guide rail 633 is mounted on the mounting plate 61, and a longitudinal push block 634 is slidably mounted on the lateral calibration guide rail 633. The longitudinal push block 634 is hinged to the longitudinal calibration slider 632. When the position of the product positioning seat 10 needs to be calibrated, the mounting plate 61 and the product positioning seat 10 can be driven to move laterally or longitudinally on the machine base 1 by individually controlling the operation of the horizontal calibration motor 621 or the vertical calibration motor 631; by simultaneously controlling the operation of the horizontal calibration motor 621 and the vertical calibration motor 631, the horizontal push block 625 can be pushed to slide on the vertical calibration guide rail 624, and the vertical push block 634 will also be pushed to slide on the horizontal calibration guide rail 633, thereby causing the mounting plate 61 and the product positioning seat 10 to rotate and shift until the roll of LED strip on the product positioning seat 10 is aligned with the printing mechanism of the solder paste printer.

[0047] In this embodiment, there are two longitudinal calibration components 63, each connected to the long side of the mounting plate 61; and one lateral calibration component 62, connected to the short side of the mounting plate 61. In other embodiments, the number of lateral calibration components 62 and longitudinal calibration components 63 can be any other number.

[0048] To enable the mounting plate 61 to rotate and shift smoothly on the machine base 1, universal balls 64 are installed at the four corners of the mounting plate 61. Wear-resistant bases 65 are respectively provided on the machine base 1 at corresponding positions of the universal balls 64, and the universal balls 64 slide against their respective wear-resistant bases 65. When the transverse calibration motor 621 and / or the longitudinal calibration motor 631 are operating, the universal balls 64 slide on the wear-resistant bases 65. Through the cooperation between the universal balls 64 and the wear-resistant bases 65, the mounting plate 61 can rotate and shift smoothly, improving the stability of the transmission and the accuracy of the control.

[0049] After the roll light strip on the product positioning seat 10 is calibrated, the product positioning seat 10 needs to be driven to rise by the lifting mechanism 7 so that the roll light strip on the product positioning seat 10 is connected to the solder paste printing mechanism 8, so that the solder paste printing mechanism 8 can print solder paste onto the roll light strip on the product positioning seat 10.

[0050] like Figure 5 , Figure 8 As shown, the lifting mechanism 7 includes a lifting fixed frame 71, which is fixedly connected to the mounting plate 61. A lifting drive assembly 72 is mounted on the lifting fixed frame 71, and a lifting plate 73 is mounted on the output end of the lifting drive assembly 72. The product positioning seat 10 is fixedly connected to the lifting plate 73. The lifting drive assembly 72 drives the lifting plate 73 to rise, thereby causing the product positioning seat 10 and the roll of LED strip to rise, allowing the roll of LED strip to connect with the solder paste printing mechanism 8. The solder paste printing mechanism 8 then prints solder paste onto the roll of LED strip. After the solder paste printing is completed, the lifting drive assembly 72 drives the lifting plate 73 and the product positioning seat 10 to descend and reset to their initial positions. Finally, the pulling mechanism 4 pulls away the processed roll of LED strip from the product positioning seat 10.

[0051] The lifting drive assembly 72 is a motor lead screw structure, and its specific structure will not be described in detail here; in other embodiments, the lifting drive assembly 72 may also be a cylinder structure or other structural device capable of driving linear motion.

[0052] like Figure 9 As shown, the solder paste printing mechanism 8 includes a printing frame 81, which is fixedly connected to the machine base 1. The printing frame 81 is provided with a screen plate 82 and a brush head lateral movement module 83. The output end of the brush head lateral movement module 83 is provided with a brush head lifting module 84, and the output end of the brush head lifting module 84 is provided with a scraper 85. The brush head lifting module 84 is used to drive the scraper 85 to connect with the screen plate 82, and the brush head lateral movement module 83 is used to drive the scraper 85 to move laterally on the screen plate 82. Before processing, solder paste is poured onto the stencil 82 by an external mechanism or manually. During processing, the lifting mechanism 7 drives the product positioning seat 10 to rise until the roll of LED strip on the product positioning seat 10 contacts the lower end face of the stencil 82. Then, the brush head lifting module 84 is controlled to work, driving the scraper 85 to descend, so that the scraper 85 contacts the upper end face of the stencil 82. Next, the brush head lateral movement module 83 is controlled to work, driving the scraper 85 to slide on the stencil 82. The stencil 82 has through holes at positions corresponding to the pads on the roll of LED strip. During the sliding process of the scraper 85, it pushes the solder paste, allowing the solder paste to pass through the through holes of the stencil 82 and be laid onto the pads on the roll of LED strip, thereby completing the solder paste printing work.

[0053] In this embodiment, both the brush head lateral movement module 83 and the brush head lifting module 84 are motor screw mechanisms, which drive the scraper 85 to move up and down or laterally via a motor. In other embodiments, the brush head lateral movement module 83 and the brush head lifting module 84 may also employ other devices or structures capable of driving linear motion.

[0054] In this embodiment, there are two brush head lifting modules 84, each with a scraper 85 mounted on its output end. The two scrapers 85 are arranged side by side with opposite inclination directions. During operation, when the scraper 85 needs to be driven forward, one of the brush head lifting modules 84 is activated, driving the corresponding scraper 85 to connect with the stencil 82. Then, the brush head lateral movement module 83 drives the scraper 85 to slide forward on the stencil 82. When the scraper 85 needs to be driven backward, the other brush head lifting module 84 is activated, driving the corresponding scraper 85 to connect with the stencil 82. Then, the brush head lateral movement module 83 drives the scraper 85 to slide backward on the stencil 82. By setting two brush head lifting modules 84 and two scrapers 85, solder paste printing can be achieved in both forward and backward movements of the solder paste printing mechanism 8, reducing the reset stroke of the scraper 85 and improving processing efficiency.

[0055] To accommodate different types of products, the screen 82 and the printing frame 81 are detachably connected. By replacing different screens 82, the system can be adapted to different product processing needs, improving the equipment's versatility. Specifically, a screen frame 86 is fixedly mounted on the printing frame 81, and the screen 82 is placed on the screen frame 86. Multiple tension cylinders 87 are installed on the printing frame 81. The output end of the tension cylinders 87 can abut against the upper surface of the screen 82, and the tension cylinders 87 are used to limit the screen 82 on the screen frame 86. By using the tension cylinders 87 to limit and fix the screen 82 on the screen frame 86, the problem of the screen 82 shifting during processing can be avoided. When it is necessary to replace the mesh plate 82, simply control all the tension cylinders 87 to retract, so that the output end of the tension cylinders 87 is disengaged from the mesh plate 82. The operator can then easily remove the mesh plate 82 from the mesh plate frame 86. After placing the new mesh plate 82 back into the mesh plate frame 86, control all the tension cylinders 87 to extend, so that they abut against the upper surface of the mesh plate 82 to fix the new mesh plate 82 onto the mesh plate frame 86.

[0056] In this embodiment, there are six tensioning cylinders 87; in other embodiments, the number of tensioning cylinders 87 can be any other number, as long as it can limit and fix the mesh plate 82 on the mesh plate frame 86.

[0057] like Figure 9 , Figure 10As shown, the visual positioning mechanism 5 includes a visual camera 51, a front and rear drive module 52 on the printing frame 81, a cleaning mounting base 53 on the output end of the front and rear drive module 52, and a left and right camera module 54 on the cleaning mounting base 53. The visual camera 51 is connected to the output end of the left and right camera module 54. The front and rear drive module 52 can drive the visual camera 51 to move back and forth on the printing frame 81, and the left and right camera module 54 can drive the visual camera 51 to move left and right on the printing frame 81. In this embodiment, both the front and rear drive module 52 and the left and right camera module 54 are motor lead screw structures. In other embodiments, other devices or structures capable of linear drive, such as cylinders, can also be used. It should be noted that each screen plate 82 is provided with a positioning point for positioning. A lens 55 is also installed on the output end of the left and right camera module 54. The lens 55 is located on one side of the visual camera 51. Through the lens 55, the visual camera 51 can capture images of the positioning points on the screen plate 82 and also capture images of the roll light strip on the product positioning seat 10.

[0058] In practical operation, by controlling the front and rear drive modules 52 and the left and right camera modules 54, the vision camera 51 can be driven to move freely on the plane. When the vision camera 51 moves to the corresponding position of the positioning point on the stencil 82, it will take a picture of the positioning point on the stencil 82 and feed the image information back to the control center of the equipment. When the vision camera 51 moves directly above the product positioning seat 10, it will take a picture of the roll of LED strip on the product positioning seat 10 and feed the image information back to the control center of the equipment. After the control center obtains the images of the positioning point on the stencil 82 and the roll of LED strip on the product positioning seat 10, it can use an algorithm to determine whether there is a deviation between the position of the roll of LED strip on the product positioning seat 10 and the stencil 82, and by how much. Then, it can control the calibration mechanism 6 to drive the product positioning seat 10 to rotate and swing, so that it is aligned with the stencil 82, so that the subsequent solder paste printing mechanism 8 can accurately print solder paste onto the pads of the roll of LED strip, improving the processing accuracy.

[0059] In actual processing, after a certain number of processing cycles, some solder paste residue will inevitably remain on the lower surface of the stencil 82 and inside the holes on the stencil 82. If this solder paste is not cleaned, it may lead to defects in subsequent processed products. Therefore, after processing a certain number of roll LED strips, the stencil 82 needs to be cleaned.

[0060] like Figure 9 , Figure 11As shown, in this embodiment, a screen cleaning mechanism 9 is provided on the cleaning mounting base 53. The screen cleaning mechanism 9 includes a cleaning fixing frame 91, which is fixedly connected to the cleaning mounting base 53. The cleaning fixing frame 91 is provided with an unwinding roller 92, a winding roller 93, a lifting cylinder 94, and a winding motor 95. The unwinding roller 92 is detachably connected to the cleaning fixing frame 91 and can rotate on the cleaning fixing frame 91. A cleaning top plate 96 is provided on the output end of the lifting cylinder 94. The unwinding roller 92 is used to place the roll wiping cloth. The wiping cloth on the unwinding roller 92 can be stretched and laid sequentially on the cleaning top plate 96 and the winding roller 93. The output end of the winding motor 95 is connected to the winding roller 93 and is used to drive the winding roller 93 to rotate. The lifting cylinder 94 is used to drive the cleaning top plate 96 to contact the lower end surface of the screen 82. The front and rear drive modules 52 can drive the cleaning top plate 96 to slide on the lower end surface of the screen 82.

[0061] Before processing, the roll wiping cloth is placed on the unwinding roller 92, and one end of the roll wiping cloth is stretched and laid on the cleaning top plate 96 and the take-up roller 93. When the stencil 82 needs to be cleaned, the front and rear drive module 52 is first controlled to drive the cleaning mounting base 53 to move the cleaning fixing frame 91 directly below the stencil 82; then the lifting cylinder 94 is controlled to work, driving the cleaning top plate 96 to rise, so that the wiping cloth on the cleaning top plate 96 comes into contact with the lower end face of the stencil 82. Then, the front and rear drive module 52 drives the cleaning fixing frame 91 to move back and forth, so that the wiping cloth on the cleaning top plate 96 slides on the stencil 82, and the residual solder paste on the stencil 82 is wiped clean by the wiping cloth. After the wiping cloth on the cleaning top plate 96 is used, the winding roller 93 is driven to rotate by the winding motor 95. The winding roller 93 pulls the wiping cloth and pulls the unwinding roller 92 to rotate synchronously. The used wiping cloth on the cleaning top plate 96 is rolled up and a new wiping cloth is laid on the cleaning top plate 96 for subsequent cleaning operations.

[0062] To improve the cleaning effect, a cleaning fluid output mechanism is installed on the printing frame 81. This mechanism outputs cleaning fluid to the cleaning top plate 96. Before cleaning, the cleaning fluid is output onto a wiping cloth on the cleaning top plate 96 via the cleaning fluid output mechanism. Then, the front and rear drive modules 52 drive the screen 82 to be wiped. By dripping cleaning fluid onto the wiping cloth, the cloth can wipe the screen 82 more thoroughly, improving the cleaning effect. The cleaning fluid can be any existing liquid capable of cleaning, such as alcohol.

[0063] The cleaning fluid output mechanism includes a cleaning fluid transverse movement module 97, which is connected to the printing frame 81. An outlet pipe 98 is provided at the output end of the cleaning fluid transverse movement module 97, positioned directly above the cleaning top plate 96, and connected to the external cleaning fluid. Before cleaning the screen plate 82, external cleaning fluid is pumped to the outlet pipe 98, from which cleaning fluid flows and drips onto the wiping cloth on the cleaning top plate 96. The cleaning fluid transverse movement module 97 drives the outlet pipe 98 to move laterally, ensuring the entire wiping cloth on the cleaning top plate 96 is soaked in cleaning fluid. Then, the front and rear drive modules 52 and the lifting cylinder 94 drive the wiping cloth to wipe the screen plate 82.

[0064] In this embodiment, the cleaning fluid transverse movement module 97 is a motor-driven pulley structure. The motor drives the belt to move, thereby causing the outlet pipe 98 to move laterally on the printing frame 81. In other embodiments, the cleaning fluid transverse movement module 97 can also be any other structure or device capable of linear drive, such as a TV screw module or a cylinder module.

[0065] To further enhance the cleaning effect, the wiping cloth has micropores, such as... Figure 12 As shown, a cavity 961 is provided inside the cleaning top plate 96. An exhaust fan 99 is provided at one end of the cleaning top plate 96 to extract air from the cavity 961. Multiple suction holes 962 are provided on the upper surface of the cleaning top plate 96, communicating with the cavity 961 and capable of contacting the stencil 82. During the wiping process of the stencil 82, the exhaust fan 99 extracts air from the cavity 961, creating negative pressure suction at the suction holes 962. The suction holes 962, through the micropores in the wiping cloth, can adsorb residual solder paste from the end face and holes of the stencil 82 onto the wiping cloth. The exhaust fan 99 provides vacuum suction, thereby improving the cleaning effect of the stencil cleaning mechanism 9.

[0066] Working principle:

[0067] Before processing, after installing the stencil 82 onto the stencil frame 86, solder paste is poured onto the upper surface of the stencil 82. The roll LED strip is placed on the feed roller 23, and one end of the roll LED strip is stretched and laid onto the laying plate 42 and the product positioning seat 10. The vision camera 51 takes pictures of the roll LED strip on the stencil 82 and the product positioning seat 10. If there is a misalignment between the position of the roll LED strip and the position of the stencil 82, the lateral calibration component 62 and / or the longitudinal calibration component 63 are controlled to drive the mounting plate 61 and the product positioning seat 10 to rotate and swing until the roll LED strip on the product positioning seat 10 is aligned with the stencil 82. Then, the lifting drive component 72 is controlled to drive the product positioning seat 10 and the roll LED strip to rise, so that the roll LED strip is connected to the stencil 82.

[0068] Then, the brush head lifting module 84 is controlled to operate, driving the scraper 85 to contact the upper surface of the stencil 82. Next, the brush head lateral movement module 83 is controlled to operate, driving the scraper 85 to slide on the stencil 82. During the sliding process, the scraper 85 pushes the solder paste, allowing it to pass through the stencil 82 and be laid onto the pads on the roll of LED strip, thus completing the solder paste printing. Afterward, the lifting drive assembly 72 drives the product positioning seat 10 and the roll of LED strip to descend to their initial positions.

[0069] The coiled LED strip is then held in place by the clamping component 45, and the lateral movement component 44 drives the clamping component 45 to move laterally, thereby pulling the coiled LED strip laterally so that the next section of the coiled LED strip without solder paste is laid on the product positioning seat 10. The processed LED strip will flow into the buffer receiving groove 32, and the buffer receiving groove 32 will collect the processed coiled LED strip, completing the unloading. After that, the clamping component 45 releases the coiled LED strip, and the lateral movement component 44 drives the clamping component 45 to reset in the opposite direction.

[0070] Repeating the above processing steps allows for continuous, fully automated processing. After a period of processing, the screen cleaning mechanism 9 can be controlled to clean the screen 82, thereby improving the processing quality.

[0071] The above-described specific embodiments are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A full-automatic solder paste printing device for roll material light belt, characterized in that: The machine table is provided with a material pulling mechanism, a visual positioning mechanism, a calibration mechanism, a lifting mechanism and a solder paste printing mechanism; The material pulling mechanism is used for pulling the lateral movement of the material roll in the machine table, and the material pulling mechanism is provided with a product positioning seat, the material roll is laid on the product positioning seat, and the visual positioning mechanism is used for shooting the image of the material roll on the product positioning seat; The calibration mechanism is connected with the product positioning seat and used for driving the material roll on the product positioning seat to be aligned with the solder paste printing mechanism; The lifting mechanism is connected with the product positioning seat and used for driving the product positioning seat to move towards or away from the solder paste printing mechanism; The solder paste printing mechanism can be connected with the product positioning seat and used for printing solder paste on the surface of the material roll on the product positioning seat.

2. The full-automatic solder paste printing device for roll material lamp strip according to claim 1, characterized in that: The material pulling mechanism comprises a material pulling frame connected with the machine table, the material pulling frame is provided with a material laying plate and a material pressing roller, the material roll can be laid on the material laying plate, and the material pressing roller is used for pressing the material roll on the material laying plate; The material pulling frame is provided with a horizontal moving assembly, the output end of the horizontal moving assembly is provided with a clamping assembly, the clamping assembly is used for clamping the material roll on the material laying plate, and the horizontal moving assembly is used for driving the horizontal movement of the clamping assembly.

3. The full-automatic solder paste printing device for roll material lamp strip according to claim 1, characterized in that: The calibration mechanism comprises a mounting plate, a horizontal calibration assembly and a vertical calibration assembly, the product positioning seat is connected with the mounting plate, the mounting plate is slidably connected with the machine table, the horizontal calibration assembly and the vertical calibration assembly are respectively connected with the mounting plate, the horizontal calibration assembly can drive the horizontal sliding of the mounting plate on the machine table, and the vertical calibration assembly can drive the vertical sliding of the mounting plate on the machine table.

4. The full-automatic solder paste printing device for roll material lamp strip according to claim 3, characterized in that: The lifting mechanism comprises a lifting fixing frame connected with the mounting plate, the lifting fixing frame is provided with a lifting driving assembly, the output end of the lifting driving assembly is provided with a lifting plate, and the product positioning seat is connected with the lifting plate.

5. The full-automatic solder paste printing device for roll material lamp strip according to any one of claims 1-4, characterized in that: The solder paste printing mechanism comprises a printing frame connected with the machine table, the printing frame is provided with a screen plate and a brush head horizontal moving module, the output end of the brush head horizontal moving module is provided with a brush head lifting module, the output end of the brush head lifting module is provided with a scraper, the brush head lifting module is used for driving the screen plate to be connected with the scraper, and the brush head horizontal moving module is used for driving the horizontal movement of the scraper on the screen plate.

6. The full-automatic solder paste printing device for roll material lamp strip according to claim 5, characterized in that: The printing frame is provided with a screen plate frame, the screen plate is placed on the screen plate frame, the printing frame is provided with a plurality of tension cylinders, the output end of the tension cylinder can abut against the upper end surface of the screen plate, and the tension cylinder is used for limiting the screen plate on the screen plate frame.

7. The full-automatic solder paste printing device for roll material lamp strip according to claim 5, characterized in that: The visual positioning mechanism comprises a visual camera, the printing frame is provided with a front and rear driving module, the output end of the front and rear driving module is provided with a cleaning mounting seat, the cleaning mounting seat is provided with a camera left and right module, the visual camera is connected with the output end of the camera left and right module, the front and rear driving module can drive the visual camera to move forward and backward on the printing frame, the camera left and right module can drive the visual camera to move left and right on the printing frame, the visual camera is used for shooting the positioning points on the screen plate and shooting the roll material light belt image on the product positioning seat. 8.The full-automatic solder paste printing device for roll material lamp strip according to claim 7, characterized in that: The cleaning mounting seat is provided with a screen plate cleaning mechanism, the screen plate cleaning mechanism comprises a cleaning fixing frame, the cleaning fixing frame is fixedly connected with the cleaning mounting seat, the cleaning fixing frame is provided with a pay-off roller, a winding roller, a jacking cylinder and a winding motor, the output end of the jacking cylinder is provided with a cleaning top plate, the pay-off roller is used for placing a roll material wiping cloth, the wiping cloth on the pay-off roller can be stretched and laid on the cleaning top plate and the winding roller in turn, the output end of the winding motor is connected with the winding roller and used for driving the winding roller to rotate, the jacking cylinder is used for driving the cleaning top plate to be in contact with the lower end surface of the screen plate, and the front and rear driving module can drive the cleaning top plate to slide on the lower end surface of the screen plate. 9.The full-automatic solder paste printing device for roll material lamp strip according to claim 8, characterized in that: The cleaning top plate is provided with a cavity, one end of the cleaning top plate is provided with an air extraction fan, the air extraction fan is used for extracting air in the cavity, the upper end surface of the cleaning top plate is provided with a plurality of adsorption holes, the adsorption holes are communicated with the cavity, and the adsorption holes can be in contact with the screen plate respectively.

10. The full-automatic solder paste printing device for roll material lamp strip according to claim 8, characterized in that: The printing frame is provided with a cleaning liquid output mechanism, and the cleaning liquid output mechanism is used for outputting cleaning liquid to the cleaning top plate. The cleaning liquid output mechanism comprises a cleaning liquid transverse movement module, the cleaning liquid transverse movement module is connected with the printing frame, the output end of the cleaning liquid transverse movement module is provided with a liquid outlet pipe, the liquid outlet pipe is arranged directly above the cleaning top plate, and the liquid outlet pipe is externally connected with cleaning liquid.

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