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

Abstract

The invention discloses full-automatic solder paste printing equipment for a coiled material lamp strip. The full-automatic solder paste printing equipment comprises a feeding mechanism, a discharging buffering mechanism, 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 to move in the direction from the feeding mechanism to the discharging buffering mechanism, and a product positioning seat is arranged on the material pulling mechanism; the visual positioning mechanism is used for shooting an image of the coil stock 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 automatic machining operation can be achieved, manual material pulling is not needed, and the machining efficiency is improved; and the mechanical structure is simplified, so that the device is suitable for narrow space operation.

Description

Technical Field

[0001] The present invention relates to the technical field of automated processing equipment, and particularly relates to a fully automatic solder paste printing equipment for coiled strip lights. Background Art

[0002] A solder paste printer is a device for printing solder paste on pads of rigid or flexible circuit boards. Its core objective is to form a uniform and consistent thickness of solder paste layer at the welding positions of electronic components, ensuring reliable electrical connections are formed through reflow soldering after component mounting. During the production process of strip lights, various electronic components such as small LED chips or control ICs usually need to be soldered onto the circuit boards of the strip lights. Therefore, a solder paste printer is also used during the production process of strip lights.

[0003] During the production process of some strip lights with fixed lengths, common solder paste printers can meet the processing requirements. However, existing solder paste printers cannot be applied to the solder paste printing requirements of infinitely long coiled strip lights. Currently, in the prior art, when performing solder paste printing on infinitely long coiled strip lights, it is usually done by manually pulling the strip light. After the solder paste printer processes once, the next section of the strip light is manually pulled to a position corresponding to the printing position of the solder paste printer, and then the solder paste printer is used to print the solder paste on the next section of the strip light. This method has a low degree of automation, resulting in a low processing efficiency. To achieve automated processing, there are some processing methods in the market that will be equipped with a manipulator beside the solder paste printer, and the manipulator is used to pull the strip light to achieve automatic continuous processing of the strip light. However, the purchase cost of the manipulator is very high, which leads to an increase in the production cost of the strip light and is not conducive to market competition. Moreover, the external manipulator will inevitably increase the volume of the equipment, making it not suitable for use in narrow places and bringing great trouble to the assembly and handling of the equipment. Summary of the Invention

[0004] To solve some or all of the problems existing in the above-mentioned prior art, the present invention provides a fully automatic solder paste printing device for coiled strip light belts, including a machine platform. A feeding mechanism is provided on one side of the machine platform, and a discharging buffer mechanism is provided on the other side. The feeding mechanism is used to place the coiled strip light belts to be processed, and the discharging buffer mechanism is used to buffer the coiled strip light belts printed with solder paste for the lower-level machine. A material pulling mechanism, a vision positioning mechanism, a calibration mechanism, a lifting mechanism and a solder paste printing mechanism are provided on the machine platform. The material pulling mechanism is used to pull the coiled strip light belt to move from the feeding mechanism towards the discharging buffer mechanism. A product positioning seat is provided on the material pulling mechanism, and the coiled strip light belt on the feeding mechanism can be laid on the product positioning seat. The vision positioning mechanism is used to capture the image of the coiled strip light belt on the product positioning seat. The calibration mechanism is connected to the product positioning seat and is used to drive the coiled strip light belt on the product positioning seat to be aligned with the solder paste printing mechanism. The lifting mechanism is connected to the product positioning seat, and the lifting mechanism is used to drive the product positioning seat to move towards or 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 coiled strip light belt on the product positioning seat.

[0005] As a further improvement of the present invention, the material pulling mechanism includes a material pulling frame connected to the machine platform. A laying plate and a pressure roller are provided on the material pulling frame. The coiled strip light belt on the feeding mechanism can be laid on the laying plate, and the pressure roller is used to press the coiled strip light belt on the laying plate. A transverse movement assembly is provided on the material pulling frame, and a clamping assembly is provided at the output end of the transverse movement assembly. The clamping assembly is used to clamp the coiled strip light belt on the laying plate, and the transverse movement assembly is used to drive the clamping assembly to move horizontally.

[0006] As a further improvement of the present invention, the calibration mechanism includes a mounting plate, a transverse calibration assembly and a longitudinal calibration assembly. The product positioning seat is connected to the mounting plate, and the mounting plate is slidably connected to the machine platform. The transverse calibration assembly and the longitudinal calibration assembly are respectively connected to the mounting plate. The transverse calibration assembly can drive the mounting plate to slide horizontally on the machine platform, and the longitudinal calibration assembly can drive the mounting plate to slide longitudinally on the machine platform.

[0007] As a further improvement of the present invention, the lifting mechanism includes a lifting fixed frame connected to the mounting plate. A lifting drive assembly is provided on the lifting fixed frame, and a lifting plate is provided at the output end of the lifting drive assembly. The product positioning seat is connected to the lifting plate.

[0008] As a further improvement of the present invention, the solder paste printing mechanism includes a printing frame, which is connected to the machine table. A stencil and a brush head transverse movement module are provided on the printing frame. A brush head lifting module is provided at the output end of the brush head transverse movement module. A squeegee is provided at the output end of the brush head lifting module. The brush head lifting module is used to drive the squeegee to contact the stencil, and the brush head transverse movement module is used to drive the squeegee to move horizontally on the stencil.

[0009] As a further improvement of the present invention, a stencil holder is provided on the printing frame. The stencil is placed on the stencil holder. A plurality of tension cylinders are provided on the printing frame. The output end of the tension cylinder can abut against the upper end face of the stencil. The tension cylinder is used to limit the stencil on the stencil holder.

[0010] As a further improvement of the present invention, the vision positioning mechanism includes a vision camera. A front and rear drive module is provided on the printing frame. A cleaning mounting seat is provided at the output end of the front and rear drive module. A camera left and right module is provided on the cleaning mounting seat. The vision camera is connected to the output end of the camera left and right module. The front and rear drive module can drive the vision camera to move back and forth on the printing frame. The camera left and right module can drive the vision camera to move left and right on the printing frame. The vision camera is used to capture the positioning points on the stencil and the image of the coiled material light strip on the product positioning seat.

[0011] As a further improvement of the present invention, a stencil cleaning mechanism is provided on the cleaning mounting seat. The stencil cleaning mechanism includes a cleaning fixing frame, which is fixedly connected to the cleaning mounting seat. A unwind roller, a winding roller, a lifting cylinder and a winding motor are provided on the cleaning fixing frame. A cleaning top plate is provided at the output end of the lifting cylinder. The unwind roller is used to place the coiled material wiping cloth. The wiping cloth on the unwind roller can be stretched and laid on the cleaning top plate and the winding roller in sequence. The output end of the winding motor is connected to the winding roller to drive the winding roller to rotate. The lifting cylinder is used to drive the cleaning top plate to contact the lower end face of the stencil. The front and rear drive module can drive the cleaning top plate to slide on the lower end face of the stencil.

[0012] As a further improvement of the present invention, a cavity is provided inside the cleaning top plate. An exhaust fan is provided at one end of the cleaning top plate. The exhaust fan is used to extract the air inside the cavity. A plurality of adsorption holes are provided on the upper end face of the cleaning top plate. The adsorption holes are communicated with the cavity and can be respectively connected to the stencil.

[0013] As a further improvement of the present invention, a cleaning liquid output mechanism is provided on the printing rack, and the cleaning liquid output mechanism is used to output cleaning liquid onto the cleaning top plate; the cleaning liquid output mechanism includes a cleaning liquid transverse movement module, the cleaning liquid transverse movement module is connected to the printing rack, a liquid outlet pipe is provided at the output end of the cleaning liquid transverse movement module, the liquid outlet pipe is arranged directly above the cleaning top plate, and the liquid outlet pipe is externally connected to the cleaning liquid.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] Through the cooperation of the feeding mechanism and the material pulling mechanism, the present invention can automatically and continuously pull the coiled strip light onto the product positioning seat, thereby realizing continuous automated processing operations, eliminating the need for manual material pulling, improving the automation degree of the equipment, and enhancing the processing efficiency. Compared with external manipulators, the mechanical structure is simplified, the manufacturing cost of the equipment is reduced, and its market competitiveness is enhanced; the overall volume of the equipment is also reduced, making it suitable for operating in narrow spaces and improving the convenience of equipment assembly and handling. During specific processing, place the coiled strip light on the feeding mechanism, stretch and lay the coiled strip light on the product positioning seat, and use the visual positioning mechanism to photograph the coiled strip light on the product positioning seat to determine whether its position corresponds to the solder paste printing mechanism; then calibrate the coiled strip light on the product positioning seat with the solder paste printing mechanism through the calibration component, and then drive the product positioning seat to be connected to the solder paste printing mechanism through the lifting mechanism. Then, perform solder paste printing on the coiled strip light through the solder paste printing mechanism, and then drive the product positioning seat and the coiled strip light to reset through the lifting mechanism to complete a round of solder paste printing tasks for the coiled strip light. After completing a round of solder paste printing tasks, the material pulling mechanism is used to pull the coiled strip light in the direction of the discharge buffer mechanism, and the processed coiled strip light will enter the discharge buffer mechanism for collection, so that the next-level machine can process the coiled strip light printed with solder paste; at the same time, the material pulling mechanism will stretch and lay the next unprocessed section of the strip light on the product positioning seat, and then complete the solder paste printing tasks for the next section of the coiled strip light through the cooperation of the visual positioning mechanism, the calibration mechanism, the lifting mechanism, and the solder paste printing mechanism. Repeat the above processing process to achieve continuous automatic processing. Description of the Drawings

[0016] In order to more clearly illustrate the solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0018] Figure 2It is a front view structural schematic diagram of an embodiment of the present invention;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of another perspective of an embodiment of the present invention;

[0020] Figure 4 It is a structural schematic diagram of a feeding mechanism in an embodiment of the present invention;

[0021] Figure 5 It is a structural schematic diagram of a material pulling mechanism, a calibration mechanism and a lifting structure in an embodiment of the present invention;

[0022] Figure 6 It is a structural schematic diagram of a material pulling frame in an embodiment of the present invention;

[0023] Figure 7 It is Figure 5 an enlarged structural schematic diagram of part A in;

[0024] Figure 8 It is a structural schematic diagram of a lifting mechanism in an embodiment of the present invention;

[0025] Figure 9 It is a structural schematic diagram of a vision positioning mechanism, a solder paste printing mechanism and a stencil cleaning mechanism in an embodiment of the present invention;

[0026] Figure 10 It is Figure 9 a structural schematic diagram of another perspective of;

[0027] Figure 11 It is a structural schematic diagram of a stencil cleaning mechanism in an embodiment of the present invention;

[0028] Figure 12 It is an internal structural schematic diagram of a cleaning top plate in an embodiment of the present invention. Detailed implementation manners

[0029] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs; the terms used in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present invention or the above drawings are used to distinguish different objects and are not used to describe a specific order.

[0030] References to "embodiments" in this invention mean that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the invention. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an exclusive, independent, or alternative embodiment to other embodiments. It is 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 of this technology to better understand the solution of this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0032] As Figure 1-12 shown, a fully automatic solder paste printing device for coiled strip light belts includes a machine platform 1. A feeding mechanism 2 is arranged on one side of the machine platform 1, and a discharging buffer mechanism 3 is arranged on the other side. The feeding mechanism 2 is used to place the coiled strip light belts to be processed, and the discharging buffer mechanism 3 is used to buffer the coiled strip light belts printed with solder paste for the lower-level machine, so that the lower-level machine can process the coiled strip light belts printed with solder paste. 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 are provided on the machine platform 1; the material pulling mechanism 4 is used to pull the coiled strip light belt to move from the feeding mechanism 2 towards the discharging buffer mechanism 3. A product positioning seat 10 is provided on the material pulling mechanism 4, and the coiled strip light belt on the feeding mechanism 2 can be laid on the product positioning seat 10; the vision positioning mechanism 5 is used to capture the image of the coiled strip light belt on the product positioning seat 10; the calibration mechanism 6 is connected to the product positioning seat 10 and is used to drive the coiled strip light belt on the product positioning seat 10 to be aligned with the solder paste printing mechanism 8; the lifting mechanism 7 is connected to the product positioning seat 10, and the lifting mechanism 7 is used to drive the product positioning seat 10 to move towards or 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 coiled strip light belt on the product positioning seat 10.

[0033] Before processing, place the coiled strip light on the feeding mechanism 2, stretch one end of the coiled strip light and lay it on the product positioning seat 10. Use the vision positioning mechanism 5 to photograph the coiled strip light on the product positioning seat 10 to determine whether its position corresponds to the solder paste printing mechanism 8. Then, drive the coiled strip light on the product positioning seat 10 to align with the solder paste printing mechanism 8 through the calibration mechanism 6. Next, drive the product positioning seat 10 to be connected to the solder paste printing mechanism 8 through the lifting mechanism 7. After that, perform solder paste printing on the coiled strip light through the solder paste printing mechanism 8. Then, drive the product positioning seat 10 and the coiled strip light to reset through the lifting mechanism 7 to complete a round of solder paste printing tasks for the coiled strip light. After completing a round of solder paste printing tasks, pull the coiled strip light in the direction of the discharging buffer mechanism 3 through the material pulling mechanism 4. The processed coiled strip light will enter the discharging buffer mechanism 3 for buffering so that the lower computer can process the coiled strip light with printed solder paste. At the same time, the material pulling mechanism 4 will stretch and lay the next unprocessed strip light on the product positioning seat 10. Then, complete the solder paste printing tasks for the next section of the coiled strip light through the cooperation of the vision positioning mechanism 5, the calibration mechanism 6, the lifting mechanism 7, and the solder paste printing mechanism 8. Repeat the above processing process to achieve continuous automatic processing.

[0034] Through the cooperation of the feeding mechanism 2 and the material pulling mechanism 4, this fully automatic solder paste printing equipment for coiled strip lights can automatically and continuously pull the coiled strip light onto the product positioning seat 10, thus realizing continuous automated processing operations, eliminating the need for manual material pulling, improving the automation level of the equipment, and enhancing the processing efficiency.

[0035] As Figure 4 shown, the feeding mechanism 2 includes a feeding fixed seat 21. A feeding motor 22 and a rotatable feeding roller 23 are provided on the feeding fixed seat 21. The output end of the feeding motor 22 is connected to the feeding roller 23. The feeding roller 23 can be driven to rotate on the feeding fixed seat 21 through the feeding motor 22. Before processing, the coiled strip light is sleeved on the feeding roller 23. By controlling the feeding motor 22 to work, the feeding roller 23 can be driven to rotate, thereby unwinding the coiled strip light so that the material pulling mechanism 4 can pull the coiled strip light.

[0036] Missing material sensors 24 are respectively provided at the upper and lower ends of the feeding fixed seat 21. When the missing material sensor 24 at the upper end of the feeding fixed seat 21 detects missing material, it indicates that the coiled strip light on the feeding roller 23 has been exhausted, and the operator is timely reminded to replace the coiled strip light through the missing material sensor 24 at the upper end of the feeding fixed seat 21. When the missing material sensor 24 at the lower end of the feeding fixed seat 21 detects missing material, it indicates that the material pulling mechanism 4 has pulled away the buffer part of the coiled strip light between the feeding fixed seat 21 and the machine table 1. At this time, the feeding motor 22 can be controlled to work, driving the feeding roller 23 to rotate, releasing the coiled strip light to refill the buffer part so that the material pulling mechanism 4, the calibration mechanism 6, and the lifting mechanism 7 can work stably.

[0037] As Figure 1 shown, the discharging buffer mechanism 3 includes a buffer fixing frame 31, and a buffer material receiving groove 32 is provided on the buffer fixing frame 31; when the material pulling mechanism 4 works, it can pull the processed coiled strip light belt into the buffer material receiving groove 32, and collect the processed coiled strip light belt through the buffer material receiving groove 32 to complete the blanking process.

[0038] As Figure 5-6 shown, the material pulling mechanism 4 includes a material pulling frame 41, the material pulling frame 41 is connected to the machine table 1, a material laying plate 42 and a pressure roller 43 are provided on the material pulling frame 41, and the coiled strip light belt on the feeding mechanism 2 can be laid on the material laying plate 42, and the pressure roller 43 is used to press the coiled strip light belt on the material laying plate 42; during processing, the coiled strip light belt on the feeding roller 23 can be sequentially laid on the material laying plate 42 and the product positioning seat 10, and the pressure roller 43 presses the coiled strip light belt on the material laying plate 42, so that the coiled strip light belt can be laid flat on the product positioning seat 10; a negative pressure device is externally connected to the product positioning seat 10, so that the product positioning seat 10 can adsorb the coiled strip light belt, thereby avoiding the problem of the coiled strip light belt shifting during processing.

[0039] A transverse movement assembly 44 is arranged on the material pulling frame 41, a clamping assembly 45 is arranged on the output end of the transverse movement assembly 44, the clamping assembly 45 is used to clamp the coiled strip light belt on the material laying plate 42, and the transverse movement assembly 44 is used to drive the clamping assembly 45 to move horizontally. During the processing, first stretch and lay the coiled strip light belt on the feeding roller 23 on the material laying plate 42 and the product positioning seat 10, and adsorb the coiled strip light belt through the product positioning seat 10; then perform solder paste printing on the coiled strip light belt on the product positioning seat 10 through the cooperation of the vision positioning mechanism 5, the calibration mechanism 6, the lifting mechanism 7 and the solder paste printing mechanism 8; when the solder paste printing on the light belt on the product positioning seat 10 is completed and the reset is completed, control the product positioning seat 10 to release the coiled strip light belt, then clamp the coiled strip light belt through the clamping assembly 45, and then drive the clamping assembly 45 to move horizontally through the transverse movement assembly 44, so as to pull the coiled strip light belt to move horizontally, so that the next section of the coiled strip light belt without solder paste printing is laid on the product positioning seat 10, and then the clamping assembly 45 releases the coiled strip light belt, and drives the clamping assembly 45 to reverse and reset through the transverse movement assembly 44 to complete a round of material pulling action; repeat the above process to realize the continuous automatic material pulling processing process. Through the cooperation of the transverse movement assembly 44 and the clamping assembly 45, the coiled strip light belt can be pulled to move horizontally on the material laying plate 42, so as to stretch and lay the coiled strip light belt on the product positioning seat 10 in sequence, realize automatic feeding, meet the processing requirements of infinitely long coiled strip light belts; use machines to replace manual operations, improve the automation degree of the equipment, can greatly improve the processing efficiency, and reduce the labor cost.

[0040] In this embodiment, there are two material pulling frames 41, and the two material pulling frames 41 are symmetrically arranged on both sides of the product positioning seat 10. Each material pulling frame 41 is provided with a transverse movement assembly 44 and a clamping assembly 45. By setting two material pulling frames 41, and respectively setting the transverse movement assembly 44 and the clamping assembly 45 on each material pulling frame 41, the feeding mechanism 2 can meet the processing requirements of feeding from either side of the two sides of the machine table 1; in other words, the positions of the feeding mechanism 2 and the discharging buffer mechanism 3 can be freely interchanged, improving the versatility of processing and meeting the processing use requirements of some specific places.

[0041] Specifically, the transverse movement assembly 44 includes a material pulling motor 441, the material pulling motor 441 is fixedly installed on the material pulling frame 41, a material pulling lead screw 442 is provided on the output end of the material pulling motor 441, and a material pulling slider 443 is sleeved on the material pulling lead screw 442. The clamping assembly 45 includes a jaw cylinder 451, and the jaw cylinder 451 is fixedly connected to the material pulling slider 443. When pulling the material, the jaw cylinder 451 clamps the coiled strip light, and then the material pulling motor 441 drives the material pulling lead screw 442 to rotate. The material pulling lead screw 442 drives the material pulling slider 443 to slide, and the material pulling slider 443 pulls the jaw cylinder 451 to move horizontally, so as to pull the coiled strip light to move horizontally on the laying plate 42, achieving the purpose of pulling the coiled strip light to move.

[0042] In order to improve the stability of clamping, in this embodiment, two jaw cylinders 451 are arranged on the material pulling slider 443, and the two jaw cylinders 451 are symmetrically arranged on both sides of the laying plate 42. During processing, the two jaw cylinders 451 clamp the coiled strip light at the same time, so that both sides of the coiled strip light are clamped, improving the stability of pulling the material, and also being able to reduce the situation that the coiled strip light is pulled to one side, improving the processing efficiency and stability.

[0043] In order to limit and guide the movement direction of the material pulling slider 443, two material pulling guide rails 444 are arranged in parallel on the material pulling frame 41, and the material pulling sliders 443 are respectively slidably clamped with the material pulling guide rails 444; during the operation of the material pulling motor 441, the rotation of the material pulling lead 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 is used to limit and guide the sliding direction of the material pulling slider 443, so as to ensure that the pulling direction is consistent and reduce the problem that the coiled strip light is pulled to one side.

[0044] In the actual processing process, since the discharging direction of the coiled strip light on the feeding roller 23 cannot be ensured to be consistent, during the material pulling process, there may be a certain deviation in the direction and position of each section of the coiled strip light placed on the product positioning seat 10. Therefore, before solder paste printing, it is necessary to calibrate the position of the coiled strip light on the product positioning seat 10. The visual positioning mechanism 5 can capture the image of the coiled strip light on the product positioning seat 10, so as to know whether the position of the coiled strip light on the product positioning seat 10 is aligned with the solder paste printing mechanism 8. If the two are not aligned, the calibration mechanism 6 can drive the product positioning seat 10 to rotate and swing, so as to adjust the direction of the coiled strip light on the product positioning seat 10 until the position of the coiled strip light on the product positioning seat 10 is aligned with the solder paste printing mechanism 8.

[0045] As Figure 5 , Figure 7 shown, the calibration mechanism 6 includes a mounting plate 61, a horizontal calibration component 62 and a vertical calibration component 63. The mounting plate 61 is slidably connected to the machine table 1, the product positioning seat 10 is connected to the mounting plate 61, the horizontal calibration component 62 and the vertical calibration component 63 are respectively connected to the mounting plate 61. The horizontal calibration component 62 can drive the mounting plate 61 to slide horizontally on the machine table 1, and the vertical calibration component 63 can drive the mounting plate 61 to slide vertically on the machine table 1. When it is necessary to calibrate the position of the coiled strip light, independently controlling the horizontal calibration component 62 or the vertical calibration component 63 to work can drive the mounting plate 61 and the product positioning seat 10 to move horizontally or vertically. If the horizontal calibration component 62 and the vertical 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 table 1 until the coiled strip light 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. The lateral calibration motor 621 is connected to the machine table 1. A lateral calibration lead screw 622 is provided at the output end of the lateral calibration motor 621. A lateral calibration slider 623 is sleeved on the lateral calibration lead screw 622. The lateral calibration slider 623 is slidably and limitedly connected to the machine table 1. A longitudinal calibration guide rail 624 is provided on the mounting plate 61. A lateral pushing block 625 is slidably provided on the longitudinal calibration guide rail 624. The lateral pushing block 625 is hinged to the lateral calibration slider 623. The longitudinal calibration assembly 63 includes a longitudinal calibration motor 631. The longitudinal calibration motor 631 is connected to the machine table 1. A longitudinal calibration lead screw is provided at the output end of the longitudinal calibration motor 631. A longitudinal calibration slider 632 is sleeved on the longitudinal calibration lead screw. The longitudinal calibration slider 632 is slidably and limitedly connected to the machine table 1. A lateral calibration guide rail 633 is provided on the mounting plate 61. A longitudinal pushing block 634 is slidably provided on the lateral calibration guide rail 633. The longitudinal pushing block 634 is hinged to the longitudinal calibration slider 632. When it is necessary to calibrate the position of the product positioning seat 10, by separately controlling the lateral calibration motor 621 or the longitudinal calibration motor 631 to work, the mounting plate 61 and the product positioning seat 10 can be driven to move laterally or longitudinally on the machine table 1; by simultaneously controlling the lateral calibration motor 621 and the longitudinal calibration motor 631 to work, the lateral pushing block 625 can be pushed to slide on the longitudinal calibration guide rail 624, and at the same time, the longitudinal pushing block 634 can also be pushed to slide on the lateral calibration guide rail 633, so that the mounting plate 61 and the product positioning seat 10 rotate and shift until the coiled strip light on the product positioning seat 10 is calibrated to be aligned with the printing mechanism of the solder paste printer.

[0047] In this embodiment, there are two longitudinal calibration assemblies 63, and the two longitudinal calibration assemblies 63 are respectively connected to the long sides of the mounting plate 61; there is one lateral calibration assembly 62, and the lateral calibration assembly 62 is connected to the short side of the mounting plate 61. In other embodiments, the numbers of the lateral calibration assembly 62 and the longitudinal calibration assembly 63 can also be any other numbers.

[0048] In order to enable the mounting plate 61 to rotate and shift smoothly on the machine table 1, universal balls 64 are respectively installed at the four corner positions of the mounting plate 61. Wear-resistant bases 65 are respectively provided at the corresponding positions on the machine table 1. The universal balls 64 are respectively in sliding contact with the corresponding wear-resistant bases 65. When the lateral calibration motor 621 and / or the longitudinal calibration motor 631 works, the universal balls 64 will slide on the wear-resistant bases 65; through the cooperation of the universal balls 64 and the wear-resistant bases 65, the mounting plate 61 can rotate and shift smoothly and stably, improving the transmission stability and control accuracy.

[0049] After the position of the coiled strip light on the product positioning seat 10 is calibrated, the lifting mechanism 7 needs to be driven to raise the product positioning seat 10 so that the coiled strip light 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 the solder paste onto the coiled strip light on the product positioning seat 10.

[0050] As Figure 5 , Figure 8 shown, the lifting mechanism 7 includes a lifting fixed frame 71, the lifting fixed frame 71 is fixedly connected to the mounting plate 61, a lifting drive assembly 72 is provided on the lifting fixed frame 71, a lifting plate 73 is provided at the output end of the lifting drive assembly 72, and the product positioning seat 10 is fixedly connected to the lifting plate 73. The lifting drive assembly 72 can drive the lifting plate 73 to rise, thereby driving the product positioning seat 10 and the coiled strip light to rise, so that the coiled strip light is connected to the solder paste printing mechanism 8, and then the solder paste printing mechanism 8 is used to print the solder paste on the coiled strip light; after the solder paste printing is completed, the lifting drive assembly 72 is used to drive the lifting plate 73 and the product positioning seat 10 to descend and reset to the initial position, and then the processed coiled strip light on the product positioning seat 10 is pulled away by the material pulling mechanism 4.

[0051] The lifting drive assembly 72 is a motor screw structure, and its specific structure will not be elaborated in this article; in other embodiments, the lifting drive assembly 72 can also be a cylinder structure or other structural devices capable of driving linear motion.

[0052] As Figure 9 shown, the solder paste printing mechanism 8 includes a printing frame 81, the printing frame 81 is fixedly connected to the machine table 1, a stencil 82 and a brush head transverse movement module 83 are provided on the printing frame 81, a brush head lifting module 84 is provided at the output end of the brush head transverse movement module 83, and a squeegee 85 is provided at the output end of the brush head lifting module 84. The brush head lifting module 84 is used to drive the squeegee 85 to contact the stencil 82, and the brush head transverse movement module 83 is used to drive the squeegee 85 to move horizontally on the stencil 82. Before processing, the solder paste is poured onto the stencil 82 by an external mechanism or manually; during processing, the lifting mechanism 7 will drive the product positioning seat 10 to rise until the coiled strip light on the product positioning seat 10 contacts the lower end surface of the stencil 82; then control the brush head lifting module 84 to work, drive the squeegee 85 to descend, so that the squeegee 85 contacts the upper end surface of the stencil 82; then control the brush head transverse movement module 83 to work, drive the squeegee 85 to slide on the stencil 82; through holes are provided at positions on the stencil 82 corresponding to the pads on the coiled strip light, and the squeegee 85 will push the solder paste during the sliding process, so that the solder paste passes through the through holes of the stencil 82 and is laid on the pads on the coiled strip light, thereby completing the solder paste printing work.

[0053] In this embodiment, both the brush head transverse movement module 83 and the brush head lifting module 84 are motor-screw mechanisms, which are driven by motors to achieve the lifting or lateral movement of the squeegee 85. In other embodiments, the brush head transverse movement module 83 and the brush head lifting module 84 can also adopt other devices or structures capable of driving linear motion.

[0054] In this embodiment, there are two brush head lifting modules 84 in total. A squeegee 85 is installed on the output end of each brush head lifting module 84. The two squeegees 85 are arranged side by side, and the inclination directions of the two squeegees 85 are opposite. During operation, when it is necessary to drive the squeegee 85 to move forward, control one of the brush head lifting modules 84 to work, drive the corresponding squeegee 85 to contact the stencil 82, and then drive the squeegee 85 to slide forward on the stencil 82 through the brush head transverse movement module 83; when it is necessary to drive the squeegee 85 to move backward, control the other brush head lifting module 84 to work, drive the other squeegee 85 corresponding to it to contact the stencil 82, and then drive the squeegee 85 to slide backward on the stencil 82 through the brush head transverse movement module 83. By setting two brush head lifting modules 84 and two squeegees 85, solder paste printing can be achieved both when the solder paste printing mechanism 8 moves forward and backward, reducing the reset stroke of the squeegee 85 and improving the processing efficiency.

[0055] In order to be applicable to the processing of different types of products, the stencil 82 and the printing frame 81 adopt a detachable connection method. By replacing different stencils 82, it can be made applicable to the processing requirements of different types of products, improving the versatility of the equipment. Specifically, a stencil frame 86 is fixedly installed on the printing frame 81. The stencil 82 is placed on the stencil frame 86. A plurality of tension cylinders 87 are installed on the printing frame 81. The output end of the tension cylinder 87 can abut against the upper end surface of the stencil 82. The tension cylinder 87 is used to limit the stencil 82 on the stencil frame 86; the stencil 82 can be limited and fixed on the stencil frame 86 through the tension cylinder 87, thus avoiding the problem of the stencil 82 shifting during processing. When it is necessary to replace the stencil 82, only need to control all the tension cylinders 87 to retract, so that the output end of the tension cylinder 87 disengages from the stencil 82, and the operator can easily remove the stencil 82 from the stencil frame 86; after placing the new stencil 82 back on the stencil frame 86, then control all the tension cylinders 87 to extend, and make them abut against the upper end surface of the stencil 82 to fix the new stencil 82 on the stencil frame 86.

[0056] In this embodiment, the number of tension cylinders 87 is six; in other embodiments, the number of tension cylinders 87 can also be any other number, as long as it can limit and fix the stencil 82 on the stencil frame 86.

[0057] Such as Figure 9 、 Figure 10As shown in the figure, the visual positioning mechanism 5 includes a visual camera 51. A front and rear drive module 52 is provided on the printing frame 81. A cleaning mounting base 53 is provided at the output end of the front and rear drive module 52. A camera left and right module 54 is provided on the cleaning mounting base 53. The visual camera 51 is connected to the output end of the camera left and right 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 camera left and right 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 camera left and right module 54 are motor 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 positioning points for positioning are provided on each stencil 82. A lens 55 is also installed at the output end of the camera left and right module 54. The lens 55 is arranged on one side of the visual camera 51. Through the lens 55, the visual camera 51 can capture the positioning points on the stencil 82 and can also capture the image of the coiled strip light on the product positioning seat 10.

[0058] During specific operation, by controlling the operation of the front and rear drive module 52 and the camera left and right module 54, the visual camera 51 can be driven to move freely on a plane. When the visual camera 51 moves to the corresponding position of the positioning point on the stencil 82, it will capture the positioning point on the stencil 82 and feed the image information back to the control center of the device. When the visual camera 51 moves directly above the product positioning seat 10, it will capture the coiled strip light on the product positioning seat 10 and feed the image information back to the control center of the device. After the control center obtains the image of the positioning point on the stencil 82 and the image of the coiled strip light on the product positioning seat 10, through algorithms, it can determine whether there is a deviation in the position of the coiled strip light on the product positioning seat 10 from the stencil 82 and how much the deviation is. Then, the calibration mechanism 6 can be controlled 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 the solder paste onto the pads of the coiled strip light, improving the accuracy of processing.

[0059] During the actual processing, after a certain processing cycle, there will inevitably be some solder paste residues on the lower end surface of the stencil 82 and in the holes on the stencil 82. If these solder pastes are not cleaned, it may cause defects in the subsequent processed products. Therefore, after processing a certain number of coiled strip lights, the stencil 82 needs to be cleaned.

[0060] Such as Figure 9 、 Figure 11As shown, in this embodiment, a stencil cleaning mechanism 9 is provided on the cleaning mounting base 53. The stencil cleaning mechanism 9 includes a cleaning fixing frame 91, which is fixedly connected to the cleaning mounting base 53. A unwind roller 92, a winding roller 93, a lifting cylinder 94 and a winding motor 95 are provided on the cleaning fixing frame 91. The unwind 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 unwind roller 92 is used to place the roll wiping cloth, and the wiping cloth on the unwind roller 92 can be stretched and laid on the cleaning top plate 96 and the winding roller 93 in sequence. The output end of the winding motor 95 is connected to the winding roller 93 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 stencil 82, and the front and rear driving module 52 can drive the cleaning top plate 96 to slide on the lower end surface of the stencil 82.

[0061] Before processing, the roll wiping cloth is sleeved on the unwind roller 92, and one end of the roll wiping cloth is stretched and laid on the cleaning top plate 96 and the winding roller 93. When the stencil 82 needs to be cleaned, first control the front and rear driving module 52 to drive the cleaning mounting base 53 with the cleaning fixing frame 91 to move to directly below the stencil 82; then control the lifting cylinder 94 to work, driving the cleaning top plate 96 to rise, so that the wiping cloth on the cleaning top plate 96 contacts the lower end surface of the stencil 82. Then drive the cleaning fixing frame 91 to move back and forth through the front and rear driving module 52, 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, drive the winding roller 93 to rotate through the winding motor 95. The winding roller 93 will pull the wiping cloth and drive the unwind roller 92 to rotate synchronously; the used wiping cloth on the cleaning top plate 96 is wound up, and a new wiping cloth is laid on the cleaning top plate 96 for subsequent cleaning operations.

[0062] In order to improve the cleaning effect, a cleaning liquid output mechanism is installed on the printing frame 81. The cleaning liquid output mechanism is used to output cleaning liquid onto the cleaning top plate 96; before cleaning, the cleaning liquid can be output to the wiping cloth on the cleaning top plate 96 through the cleaning liquid output mechanism, and then drive the stencil 82 to be wiped through the front and rear driving module 52. By dripping the cleaning liquid on the wiping cloth, the wiping cloth can wipe the stencil 82 cleaner and improve the cleaning effect. The cleaning liquid can be all existing liquids such as alcohol that can achieve the cleaning effect.

[0063] The cleaning liquid output mechanism includes a cleaning liquid transverse movement module 97. The cleaning liquid transverse movement module 97 is connected to the printing frame 81. A liquid outlet pipe 98 is provided at the output end of the cleaning liquid transverse movement module 97. The liquid outlet pipe 98 is arranged directly above the cleaning top plate 96, and the liquid outlet pipe 98 is externally connected to the cleaning liquid. Before cleaning the screen plate 82, the external cleaning liquid is output to the liquid outlet pipe 98 through a liquid pumping pump. The liquid outlet pipe 98 will flow out the cleaning liquid, and the cleaning liquid drips onto the wiping cloth on the cleaning top plate 96. The liquid outlet pipe 98 is driven by the cleaning liquid transverse movement module 97 to move horizontally, so that the entire wiping cloth on the cleaning top plate 96 is impregnated with the cleaning liquid. Then, the wiping cloth is driven by the front-back driving module 52 and the lifting cylinder 94 to wipe the screen plate 82.

[0064] In this embodiment, the cleaning liquid transverse movement module 97 is a motor pulley structure. The motor drives the belt to move, and then drives the liquid outlet pipe 98 to move horizontally on the printing frame 81. In other embodiments, the cleaning liquid transverse movement module 97 can also be other structures or devices such as a television lead screw module, a cylinder module, etc. that can achieve linear drive.

[0065] In order to further improve the cleaning effect, the wiping cloth is provided with micro holes, such as Figure 12 shown, a cavity 961 is provided in the cleaning top plate 96. An air extraction fan 99 is provided at one end of the cleaning top plate 96. The air extraction fan 99 is used to extract the air in the cavity 961. A plurality of adsorption holes 962 are provided on the upper end surface of the cleaning top plate 96. The adsorption holes 962 are communicated with the cavity 961, and the adsorption holes 962 can be respectively connected to the screen plate 82. During the process of the wiping cloth wiping the screen plate 82, the air extraction fan 99 can work to extract the air in the cavity 961, so that the adsorption holes 962 have negative pressure suction. The adsorption holes 962 can adsorb the residual solder paste on the end face and in the holes of the screen plate 82 onto the wiping cloth through the micro holes on the wiping cloth. The air extraction fan 99 can provide vacuum suction, thereby improving the cleaning effect of the screen plate cleaning mechanism 9.

[0066] Working principle:

[0067] Before processing, after installing the screen plate 82 on the screen plate frame 86, pour the solder paste onto the upper end face of the screen plate 82. Place the coiled strip light on the feeding roller 23, and stretch one end of the coiled strip light and lay it on the laying plate 42 and the product positioning seat 10. Take pictures of the screen plate 82 and the coiled strip light on the product positioning seat 10 through the vision camera 51. If there is an offset between the position of the coiled strip light and the position of the screen plate 82, control the horizontal calibration component 62 and / or the vertical calibration component 63 to work and drive the mounting plate 61 and the product positioning seat 10 to rotate and swing until the coiled strip light on the product positioning seat 10 is aligned with the screen plate 82. Then control the lifting drive component 72 to drive the product positioning seat 10 and the coiled strip light to rise, so that the coiled strip light is connected to the screen plate 82.

[0068] Then, control the brush head lifting module 84 to work, driving the squeegee 85 to contact the upper surface of the stencil 82; then control the brush head transverse movement module 83 to work, driving the squeegee 85 to slide on the stencil 82. During the sliding process of the squeegee 85, the solder paste will be pushed, so that the solder paste passes through the stencil 82 and is laid on the pads of the coiled strip light, thus completing the solder paste printing work. After that, drive the product positioning seat 10 and the coiled strip light to descend to the initial position through the lifting drive assembly 72.

[0069] After that, clamp the coiled strip light through the clamping assembly 45, and then drive the clamping assembly 45 to move horizontally through the transverse movement assembly 44, so as to pull the coiled strip light to move horizontally, making the next section of the coiled strip light without solder paste laid on the product positioning seat 10. The processed strip light will flow into the buffer receiving groove 32, and the processed coiled strip light is collected through the buffer receiving groove 32 to complete the blanking; after that, the clamping assembly 45 releases the coiled strip light, and drives the clamping assembly 45 to reset in the reverse direction through the transverse movement assembly 44.

[0070] Repeat the above processing process to achieve continuous full-automatic processing. After processing for a period of time, the stencil cleaning mechanism 9 can be controlled to clean the stencil 82 to improve the processing quality.

[0071] The above specific implementation manners are the preferred implementation manners of the present invention, and do not limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to this specific implementation manner. All equivalent changes made in accordance with the present invention are within the protection scope of the present invention.

Claims

1. A fully automatic solder paste printing device for coiled light strips, characterized by: It includes a machine platform, one side of the machine platform is provided with a feeding mechanism, and the other side is provided with a discharging buffer mechanism, the feeding mechanism is used to place the coiled light strip to be processed, and the discharging buffer mechanism is used to buffer the coiled light strip printed with solder paste for the lower machine; The machine platform is provided with a material pulling mechanism, a visual positioning mechanism, a calibration mechanism, a lifting mechanism and a solder paste printing mechanism; The pulling mechanism is used to pull the coiled light strip from the feeding mechanism to the discharging buffer mechanism. The pulling mechanism is provided with a product positioning seat, and the coiled light strip on the feeding mechanism can be laid on the product positioning seat; The visual positioning mechanism is used to capture the image of the coiled light strip on the product positioning seat; The calibration mechanism is connected to the product positioning seat and is used to drive the coiled light 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 the lifting mechanism is used to drive the product positioning seat to move towards or away from the solder paste printing mechanism; The solder paste printing mechanism can be connected to the product positioning seat and is used for printing solder paste on the surface of the coiled light strip on the product positioning seat.

2. The fully automatic solder paste printing equipment for coiled light strips according to claim 1 is characterized in that: The material pulling mechanism comprises a material pulling frame, which is connected to the machine platform, and is provided with a material laying plate and a material pressing roller. The coiled light strip on the feeding mechanism can be laid on the material laying plate, and the material pressing roller is used to press the coiled light strip onto the material laying plate. The material pulling rack is provided with a transverse movement component, and the output end of the transverse movement component is provided with a clamping component, the clamping component is used to clamp the coiled light strip on the material laying board, and the transverse movement component is used to drive the clamping component to move horizontally.

3. The fully automatic solder paste printing equipment for coiled light strips according to claim 1 is characterized in that: The calibration mechanism includes a mounting plate, a transverse calibration assembly and a longitudinal calibration assembly. The product positioning seat is connected to the mounting plate, and the mounting plate is slidably connected to the machine platform. The transverse calibration assembly and the longitudinal calibration assembly are respectively connected to the mounting plate. The transverse calibration assembly can drive the mounting plate to slide transversely on the machine platform, and the longitudinal calibration assembly can drive the mounting plate to slide longitudinally on the machine platform.

4. The fully automatic solder paste printing equipment for coiled light strips according to claim 3 is characterized in that: The lifting mechanism comprises a lifting fixing frame, the lifting fixing frame is connected to the mounting plate, a lifting driving assembly is arranged on the lifting fixing frame, a lifting plate is arranged on the output end of the lifting driving assembly, and the product positioning seat is connected to the lifting plate.

5. The fully automatic solder paste printing equipment for coiled light strips according to any one of claims 1 to 4, characterized in that: The solder paste printing mechanism includes a printing frame, which is connected to the machine platform. A screen and a brush head transverse movement module are provided on the printing frame. A brush head lifting module is provided on the output end of the brush head transverse movement module. A scraper is provided on the output end of the brush head lifting module. The brush head lifting module is used to drive the scraper to connect with the screen, and the brush head transverse movement module is used to drive the scraper to move laterally on the screen.

6. The fully automatic solder paste printing equipment for coiled light strips according to claim 5 is characterized in that: 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 tensioning cylinders, the output ends of the tensioning cylinders can abut against the upper end surface of the screen, and the tensioning cylinders are used to limit the screen on the screen frame.

7. The fully automatic solder paste printing equipment for coiled light strips according to claim 5 is characterized in that: The visual positioning mechanism includes a visual camera, and 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, and the cleaning mounting seat is provided with a camera left and right module. The visual camera is connected to the output ends of the camera left and right modules. The front and rear driving modules can drive the visual camera to move forward and backward on the printing frame. The camera left and right modules can drive the visual camera to move left and right on the printing frame. The visual camera is used to capture the positioning points on the screen and to capture the image of the coil light strip on the product positioning seat.

8. The fully automatic solder paste printing equipment for coiled light strips according to claim 7 is characterized in that: The cleaning mounting seat is provided with a screen cleaning mechanism, and the screen cleaning mechanism includes a cleaning fixing frame, which is fixedly connected to the cleaning mounting seat, and the cleaning fixing frame is provided with an unwinding roller, a winding roller, a lifting cylinder and a winding motor, and the output end of the lifting cylinder is provided with a cleaning top plate, the unwinding roller is used for placing a roll material wiping cloth, and the wiping cloth on the unwinding roller can be stretched and laid on the cleaning top plate and the winding roller in sequence, the output end of the winding motor is connected to the winding roller, and is used to drive the winding roller to rotate, and the lifting cylinder is used to drive the cleaning top plate to connect with the lower end surface of the screen, and the front and rear driving modules can drive the cleaning top plate to slide on the lower end surface of the screen.

9. The fully automatic solder paste printing equipment for coiled light strips according to claim 8, characterized in that: A cavity is provided in the cleaning top plate, an exhaust fan is provided at one end of the cleaning top plate, the exhaust fan is used to extract air in the cavity, a plurality of adsorption holes are provided on the upper end surface of the cleaning top plate, the adsorption holes are connected with the cavity, and the adsorption holes can be connected with the mesh plates respectively.

10. The fully automatic solder paste printing equipment for coiled light strips 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 to output the cleaning liquid onto the cleaning top plate; The cleaning liquid output mechanism comprises a cleaning liquid transverse movement module, the cleaning liquid transverse movement module is connected to the printing frame, a liquid outlet pipe is provided on the output end of the cleaning liquid transverse movement module, the liquid outlet pipe is arranged just above the cleaning top plate, and the liquid outlet pipe is externally connected to the cleaning liquid.

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