Electronic component solder paste printing device

Abstract

The invention discloses an electronic component solder paste printing device, and belongs to the technical field of electronic component production and processing equipment. The device comprises a shell, a steel mesh is fixedly connected to the interior of the shell, a fixed sliding rod is fixedly connected to the top of the steel mesh, a sliding groove is formed in the side wall of the steel mesh, a feeding mechanism is arranged on the outer wall of the fixed sliding rod, solder paste is stirred and automatically fed during printing work, a scraper mechanism is arranged on the inner wall of the sliding groove, and the scraper mechanism is arranged on the inner wall of the sliding groove. According to the tin paste recycling device, the tin paste can be automatically recycled during printing work, a storage mechanism is arranged on the top of the steel mesh, and when the tin paste is recycled, the tin paste can be stored in a sealed mode. The feeding box slidably extrudes the sealing block to relieve sealing of the feeding groove, automatic feeding is achieved, it is avoided that a large amount of solder paste is placed in a machining area at a time, the oxidation or deterioration risk caused by the fact that the solder paste is exposed to air for a long time is reduced, and therefore the printing work effect of electronic components is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of electronic component production and processing equipment, and in particular to an electronic component solder paste printing device. Background Art

[0002] The printed circuit boards (PCBs) in electronic products are generally equipped with many electronic components, such as chips, resistors, capacitors and inductors, in order to form circuits with specific functions. Therefore, multiple soldering points for soldering the above electronic components are set on the PCB. In order to obtain better soldering effect and improve soldering efficiency, before soldering the above electronic components, a layer of material that can assist soldering is first applied to the soldering points of the PCB. The auxiliary soldering material is generally solder paste.

[0003] Solder paste, gray paste, solder paste is a new type of welding material that came into being with SMT. It is a paste mixture formed by mixing solder powder, flux and other surfactants, thixotropic agents, etc. It is mainly used for the welding of PCB surface resistors, capacitors, ICs and other electronic components in the SMT industry. At present, solder paste feeding is mostly done manually.

[0004] Generally, changes in solder paste viscosity will also affect the printing quality of solder paste. For example, the viscosity of solder paste will change due to the influence of temperature. During the solder paste printing process, the solder paste is mostly extruded by a reciprocating extruder and then leveled by a scraper. When feeding the solder paste, if the extrusion volume is large, a considerable portion of the solder paste will not be fully utilized, and multiple printings will be required before it can be used. However, after the solder paste has been in contact with the air for a long time, it may deteriorate or be contaminated if left for a long time, such as contact with dust, moisture or other pollutants in the air. These will reduce the welding effect of the solder paste and will also affect the solder paste printing effect of the next electronic component. If a small amount of solder paste is added each time, the number of shutdowns for feeding will increase, affecting work efficiency. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that solder paste is left for too long after being loaded, and to propose a solder paste printing device for electronic components.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: an electronic component solder paste printing device, comprising a shell, a steel mesh is fixedly connected to the inside of the shell, and a fixed slide bar is fixedly connected to the top of the steel mesh, and a slide groove is opened on the side wall of the steel mesh; The outer wall of the fixed slide rod is provided with a feeding mechanism, which stirs the solder paste and automatically feeds the solder paste during printing; The inner wall of the chute is provided with a scraper mechanism so as to automatically recycle the solder paste during printing; A storage mechanism is provided on the top of the steel mesh, which can seal and store the solder paste when the solder paste is recovered.

[0007] Further, the feeding mechanism includes a feeding box, and the inner wall of the feeding box is fixedly connected with a bevel groove rod, the bevel groove rod is threadedly connected with a stirring blade, and the top of the stirring blade is rotatably connected with a connecting plate, the top of the connecting plate is fixedly connected with a connecting rod, and the top of the connecting rod is fixedly connected with a pressure plate, a pressure groove is provided at the top of the feeding box, a feeding groove is penetrated through the bottom of the feeding box, and a sealing block is slidably connected to the inner wall of the feeding groove, a second spring is fixedly connected to the top of the sealing block, and the end of the second spring away from the sealing block is fixedly connected to the inner wall of the sealing block.

[0008] Furthermore, both ends of the feeding box are slidably connected to the corresponding outer walls of the fixed sliding rod, the interior of the connecting plate passes through and is slidably connected to the outer wall of the inclined groove rod, the outer wall of the connecting rod passes through and is slidably connected to the top of the feeding box, and the bottom of the pressing plate corresponds to the inner wall of the pressing groove.

[0009] Further, the scraper mechanism includes a connecting block, and a recovery scraper is hinged on one side of the connecting block, and a smear scraper is hinged on the other side of the connecting block, and a first pull rope is fixedly connected through the inside of the connecting block, a winding assembly is fixedly installed on the top of the steel mesh, one end of the first pull rope is fixedly connected to the output shaft of the winding assembly, a fixed block is fixedly connected to the top of the steel mesh, and a rotating rod is rotatably connected to the inner wall of the fixed block, and the end of the first pull rope away from the winding assembly is wrapped around the outer wall of the rotating rod, and the outer wall of the rotating rod is wrapped with a second pull rope.

[0010] Further, the end of the recovery scraper is slidably connected to the inner wall of the slide chute, and the bottom of the recovery scraper is slidably connected to the top of the steel mesh, the end of the smearing scraper is slidably connected to the inner wall of the slide chute, and the bottom of the smearing scraper is slidably connected to the top of the steel mesh, and the end of the second pull rope away from the rotating rod is fixedly connected to the outer wall of the feeding box.

[0011] Furthermore, a protrusion is slidably connected to the inner wall of the slide groove, and one end of the protrusion is fixedly connected to a first spring, the end of the first spring away from the protrusion is fixedly connected to the inside of the steel mesh, the outer wall of the protrusion corresponds to the side wall of the recovery scraper, and the outer wall of the protrusion corresponds to the side wall of the smear scraper.

[0012] Further, the storage mechanism includes a sliding plate and a first mounting frame, the inner wall of the sliding plate is slidably connected to a sealing plate, and the side wall of the sealing plate is fixedly connected to a third spring, the end of the third spring away from the sealing plate is fixedly connected to the inside of the sliding plate, the top of the sliding plate is fixedly connected to a first rack, the top of the steel mesh is fixedly connected to a second mounting frame, and the outer wall of the second mounting frame is rotatably connected to a gear, the inner wall of the gear teeth of the gear matches and meshes with the inner wall of the tooth groove of the first rack, the side wall of the first mounting frame is fixedly connected to a tension spring, and the end of the tension spring away from the first mounting frame is fixedly connected to the second rack, the inner wall of the gear teeth of the gear matches and meshes with the inner wall of the tooth groove of the second rack, the side wall of the second rack is fixedly connected to a resist plate, and the side wall of the steel mesh is fixedly connected to a storage box.

[0013] Furthermore, the side wall of the sliding plate is slidably connected to the side wall of the steel mesh, and the interior of the storage box is connected to the interior of the steel mesh.

[0014] Furthermore, an electric push rod is fixedly mounted on the top of the shell, and the output shaft of the electric push rod is fixedly connected to the top of the pressure plate, a conveying component is fixedly mounted on the inner wall of the shell, and a linear transmission component is fixedly mounted on the side wall of the shell.

[0015] Compared with the prior art, the above solution has the following beneficial effects: 1. The feeding box slides downward, so that the sealing block is squeezed and slides into the feeding slot. At this time, the sealing block no longer seals the feeding slot, and then the solder paste in the feeding box flows downward through the inside of the feeding slot, and then flows to the processing area on the surface of the steel mesh, so that before printing the electronic components, the material can be automatically loaded in the processing area, avoiding placing a large amount of solder paste in the processing area at one time, which is exposed to the air for a long time, causing oxidation or deterioration, affecting the printing effect.

[0016] 2. When the stirring blade moves downward, it will rotate along the outer wall of the inclined slot rod, and at the same time, by driving its blades to move, it can achieve the function of stirring the solder paste inside the feeding box before printing the electronic components each time. Stirring the solder paste can keep the tin in good fluidity and viscosity, ensuring that the electronic components can be accurately and firmly pasted to the circuit board.

[0017] 3. The force of stretching the rotating rod through the clockwork spring drives the recovery scraper to slide to the left. During the process, the excess solder paste adsorbed on the surface of the steel mesh after printing will be scraped off, so that the residual solder paste on the surface of the steel mesh can be automatically scraped off after each printing work is completed. After that, when the feeding mechanism is connected to the surface of the steel mesh, the feeding work of the next printing work will be carried out at this time, thereby scraping off the residual solder paste from the previous time, avoiding the residual solder paste from mixing with the newly fed solder paste, thereby reducing the effect of solder paste printing. By recovering the solder paste on the steel mesh, the interruption time due to cleaning the steel mesh during the printing process can be effectively reduced, thereby improving production efficiency.

[0018] 4. After the sliding plate slides upward, the recovery scraper drives the solder paste to the inside of the sliding plate, thereby realizing the collection of the solder paste. After the collection is completed, when the feeding box stops moving, the tension spring will reset, so that the gear drives the first rack to move downward, and then the first rack drives the sealing plate to move downward, and then it is released through the elastic force of the third spring, and can be engaged at the entrance of the storage box, thereby making the internal space of the storage box sealed, avoiding long-term exposure to the air to cause oxidation or deterioration, which is beneficial to the recovery and storage of solder paste. The recovered solder paste can be reused after processing to reduce waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure proposed by the present invention; Figure 2 A cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the first part of the structure of the feeding mechanism proposed by the present invention; Figure 4 A cross-sectional view of the second part of the feeding mechanism proposed by the present invention; Figure 5 This is a schematic diagram of the first part of the structure of the scraper mechanism proposed by the present invention; Figure 6 A cross-sectional view of the second part of the scraper mechanism provided by the present invention; Figure 7 A partial structural cross-sectional view of the present invention; Figure 8 A cross-sectional view of the first part of the storage mechanism provided by the present invention; Fig. 9 This is a cross-sectional view of the second part of the structure of the storage mechanism proposed by the present invention.

[0020] The marks in the attached drawings are: 1, shell; 2, steel mesh; 3, fixed slide rod; 4, feeding mechanism; 5, slide groove; 6, scraper mechanism; 7, storage mechanism; 8, bump; 9, first spring; 10, electric push rod; 11, conveying assembly; 12, linear transmission assembly; 401, feeding box; 402, inclined groove rod; 403, stirring blade; 404, connecting plate; 405, connecting rod; 406, pressing plate; 407, pressing groove; 408, feeding trough; 409, sealing block; 410, first Two springs; 601, connecting block; 602, recovery scraper; 603, smear scraper; 604, first pull rope; 605, winding assembly; 606, fixed block; 607, rotating rod; 608, second pull rope; 701, sliding plate; 702, first mounting bracket; 703, sealing plate; 704, third spring; 705, first rack; 706, tension spring; 707, second rack; 708, back plate; 709, second mounting bracket; 710, gear; 711, storage box. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "top surface", "bottom surface" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are only used to distinguish an entity or operation from another entity or operation, and do not require or imply any actual relationship, order or relative importance between these entities or operations.

[0023] For example, see Figure 1-4 A solder paste printing device for electronic components includes a shell 1, a steel mesh 2 is fixedly connected to the inside of the shell 1, and a fixed slide bar 3 is fixedly connected to the top of the steel mesh 2, a slide groove 5 is opened on the side wall of the steel mesh 2, an electric push rod 10 is fixedly installed on the top of the shell 1, a conveying component 11 is fixedly installed on the inner wall of the shell 1, and a linear transmission component 12 is fixedly installed on the side wall of the shell 1.

[0024] The outer wall of the fixed slide rod 3 is provided with a feeding mechanism 4, which stirs the solder paste and automatically feeds it during printing. The feeding mechanism 4 includes a feeding box 401, and the inner wall of the feeding box 401 is fixedly connected with a bevel rod 402, the bevel rod 402 is threadedly connected with a stirring blade 403, and the top of the stirring blade 403 is rotatably connected with a connecting plate 404, the top of the connecting plate 404 is fixedly connected with a connecting rod 405, and the top of the connecting rod 405 is fixedly connected with a pressing plate 406, a pressing groove 407 is provided at the top of the feeding box 401, a feeding groove 408 is provided through the bottom of the feeding box 401, and a sealing block 409 is slidably connected to the inner wall of the feeding groove 408, a second spring 410 is fixedly connected to the top of the sealing block 409, and the end of the second spring 410 away from the sealing block 409 is fixedly connected to the inner wall of the sealing block 409.

[0025] When solder paste printing is required for electronic components, first, the solder paste to be used is added to the inside of the feeding box 401, and then the equipment is driven. Then the operator places the electronic components on the linear conveying component 12 at the feed port of the device. Then the electronic components are conveyed to the inside of the shell 1 through the linear conveying component 12, and then they are conveyed to the processing area on the top of the conveying component 11. The conveying component 11 is provided with a visual recognition system, which can accurately identify the reference marks and feature points on the electronic components through high-resolution cameras and advanced image processing algorithms, and can automatically detect and correct the position and angle deviation of the electronic components, so as to ensure that each printing can accurately align with the target area, and then drive the electronic components to be squeezed and fitted on the bottom of the steel mesh 2. Through the positioning of the visual recognition system, the area where the electronic components need to be processed can be aligned with the processing holes opened through the steel mesh 2, and then the electric push rod 10 is driven to output. The output shaft of the electric push rod 10 is fixedly connected to the top of the pressure plate 406, and then the output of the electric push rod 10 will drive the pressure plate 40 of the output shaft 6 is moved, both ends of the feeding box 401 are slidably connected to the outer wall of the corresponding fixed slide rod 3, the inner part of the connecting plate 404 is slidably connected to the outer wall of the inclined groove rod 402, the outer wall of the connecting rod 405 is slidably connected to the top of the feeding box 401, the bottom of the pressing plate 406 corresponds to the inner wall of the pressing groove 407, and then the pressing plate 406 will drive the connecting rod 405 to slide into the inside of the feeding box 401, and at the same time, the connecting rod 405 will drive the connecting plate 404 to slide downward along the outside of the inclined groove rod 402. In this process, the connecting Plate 404 can drive the stirring blade 403 to move downward synchronously. Since the stirring blade 403 is connected to the outer wall of the inclined groove rod 402 through a thread, the stirring blade 403 will rotate along the outer wall of the inclined groove rod 402 during the downward movement, and at the same time, by driving its blades to move, it can achieve the function of stirring the solder paste inside the feeding box 401 before printing the electronic components each time. Stirring the solder paste can keep the tin in good fluidity and viscosity, ensuring that the electronic components can be accurately and firmly pasted to the circuit board.

[0026] Then, when the pressing plate 406 moves down to a certain position, the pressing plate 406 will be engaged in the pressing groove 407, and then the pressing plate 406 will drive the pressing groove 407 to move downward synchronously, and then the two ends of the feeding box 401 will slide downward along the outer wall of the fixed slide rod 3. When sliding downward to a certain distance, the bottom of the sealing block 409 will contact the top of the steel mesh 2. Since the steel mesh 2 is in a fixed position, the sealing block 409 will be squeezed, and then it will slide upward along the inner wall of the feeding groove 408, and at the same time, the second spring 410 will be squeezed. Then, when the sealing block 409 slides as a whole to the inside of the feeding groove 408, at this time, through the sealing The sealing block 409 no longer seals the feeding trough 408, and the solder paste that has just been stirred inside the feeding box 401 will flow downward through the inside of the feeding trough 408, and then flow to the top of the steel mesh 2, thereby realizing the feeding of electronic components for printing work. After the feeding is completed, the output shaft of the electric push rod 10 is driven to reset, and after sliding to the top along the outer wall of the inclined groove rod 402 through the connecting plate 404, the connecting plate 404 will then drive the feeding box 401 to reset upward. By automatically stirring the solder paste during the feeding process, the flux in the solder paste can be evenly distributed, ensuring the use effect of the solder paste.

[0027] For example 2, please refer to Figure 2 , Figure 6-7 On the basis of the first embodiment, in this embodiment, a scraper mechanism 6 is provided on the inner wall of the chute 5 so as to automatically recycle the solder paste during printing.

[0028] The scraper mechanism 6 includes a connecting block 601, and a recovery scraper 602 is hinged on one side of the connecting block 601, and a smearing scraper 603 is hinged on the other side of the connecting block 601, and a first pull rope 604 is fixedly connected to the inside of the connecting block 601, a winding assembly 605 is fixedly installed on the top of the steel mesh 2, one end of the first pull rope 604 is fixedly connected to the output shaft of the winding assembly 605, a fixed block 606 is fixedly connected to the top of the steel mesh 2, and a rotating rod 607 is rotatably connected to the inner wall of the fixed block 606, the end of the first pull rope 604 away from the winding assembly 605 is wound around the outer wall of the rotating rod 607, and the outer wall of the rotating rod 607 is connected with a second pull rope 608, and the recovery scraper The end of the knife 602 is slidably connected to the inner wall of the slide 5, and the bottom of the recovery scraper 602 is slidably connected to the top of the steel mesh 2, the end of the smear scraper 603 is slidably connected to the inner wall of the slide 5, and the bottom of the smear scraper 603 is slidably connected to the top of the steel mesh 2, the second pull rope 608 is fixedly connected to the outer wall of the feeding box 401 at one end away from the rotating rod 607, the inner wall of the slide 5 is slidably connected with a protrusion 8, and one end of the protrusion 8 is fixedly connected with a first spring 9, and the end of the first spring 9 away from the protrusion 8 is fixedly connected to the inside of the steel mesh 2, the outer wall of the protrusion 8 corresponds to the side wall of the recovery scraper 602, and the outer wall of the protrusion 8 corresponds to the side wall of the smear scraper 603.

[0029] After the solder paste is loaded, the second pull rope 608 will be pulled by the reset upward movement of the feeding box 401, and then the rotating rod 607 will be rotated to reel in the first pull rope 604. During the process, the first pull rope 604 will drive the smear scraper 603 to slide against the surface of the steel mesh 2, so that the solder paste can be scraped into the multiple processed holes on the surface of the steel mesh 2, and then it will be squeezed onto the electrical components, thereby completing the printing of the electronic components. The printed electronic components will be transported out through the linear transmission assembly 12 of the discharge port, and then the smear scraper 603 will slide along the inner wall of the slide groove 5 to a certain distance, and then it will contact the The outer wall of the protrusion 8, then the smear scraper 603 will be squeezed, and then it will rotate at an angle through the hinge with the connecting block 601 as the axis. At this time, the smear scraper 603 will move away from the surface of the steel mesh 2. Later, when it passes over the protrusion 8, the rotated smear scraper 603 will reset and rotate. At this time, the solder paste moved by the steel mesh 2 will stay on the left side of the smear scraper 603, and then the recovery scraper 602 will rotate synchronously with the smear scraper 603, so that the solder paste stays on the left side of the recovery scraper 602. Later, when it is necessary to print solder paste on electronic components, one end of the first pull rope 604 is connected to the spring of the winding assembly 605. Then, the clockwork spring exerts a pulling force on the rotating rod 607 through the first pull rope 604. When loading, one end of the second pull rope 608 is driven downward by the feeding box 401. At this time, the rotating rod 607 is no longer subjected to the pulling force of the second pull rope 608, and is then pulled by the first pull rope 604, so that the rotating rod 607 rotates along the inner wall of the fixed block 606. After the rotation, the first pull rope 604 connected to the end of the rotating rod 607 moves toward the inside of the winding assembly 605, and in this process, the connecting block 601 is driven to move, and at the same time, the connecting block 601 drives the recovery scraper 602 to fit to the left along the top of the steel mesh 2. During the sliding process, the solder paste on the left side will be driven to move, so that the excess solder paste adsorbed on the surface of the steel mesh 2 after printing can be scraped off, so that the residual solder paste on the surface of the steel mesh 2 can be automatically scraped off after each printing work is completed. After that, when the feeding mechanism 4 is connected to the surface of the steel mesh 2, the feeding work for the next printing work will be carried out at this time, so as to scrape off the residual solder paste from the previous time, and avoid the residual solder paste from being mixed with the newly fed solder paste, thereby reducing the effect of solder paste printing. By recovering the solder paste on the steel mesh 2, the interruption time due to cleaning the steel mesh 2 during the printing process can be effectively reduced, thereby improving production efficiency.

[0030] For example 3, please refer to Figure 8-9 On the basis of the second embodiment, in this embodiment, a storage mechanism 7 is provided on the top of the steel mesh 2, which can seal and store the solder paste when the solder paste is recovered.

[0031] The storage mechanism 7 includes a sliding plate 701 and a first mounting frame 702. The inner wall of the sliding plate 701 is slidably connected to a sealing plate 703, and the side wall of the sealing plate 703 is fixedly connected to a third spring 704. The end of the third spring 704 away from the sealing plate 703 is fixedly connected to the inside of the sliding plate 701. The top of the sliding plate 701 is fixedly connected to a first rack 705. The top of the steel net 2 is fixedly connected to a second mounting frame 709, and the outer wall of the second mounting frame 709 is rotatably connected to a gear 710. The inner wall of the gear teeth of the gear 710 is connected to the first rack 705. The inner wall of the tooth groove of the rack 705 matches and meshes with each other, the side wall of the first mounting frame 702 is fixedly connected with a tension spring 706, and the end of the tension spring 706 away from the first mounting frame 702 is fixedly connected with a second rack 707, the inner wall of the gear teeth of the gear 710 matches and meshes with the inner wall of the tooth groove of the second rack 707, the side wall of the second rack 707 is fixedly connected with a support plate 708, the side wall of the steel mesh 2 is fixedly connected with a storage box 711, the side wall of the sliding plate 701 is slidably connected to the side wall of the steel mesh 2, and the interior of the storage box 711 is connected to the interior of the steel mesh 2.

[0032] When a printing job is completed, the residual solder paste on the surface of the steel mesh 2 is scraped and cleaned by the recovery scraper 602. When the connecting block 601 moves to a certain position, the side wall of the connecting block 601 will contact the abutment plate 708, and then the abutment plate 708 will be squeezed, and then the abutment plate 708 will be driven to move, and then the abutment plate 708 will drive the second rack 707 to move, and at the same time the tension spring 706 will be stretched. The guide rod is fixedly connected to the side wall of the first mounting frame 702, and the second rack 70 When moving, the second rack 707 will slide along the outer wall of the guide rod, which can ensure that the second rack 707 will not deviate during the movement. Then, the second rack 707 will drive the gear 710 to rotate during the movement, and the gear 710 will drive the first rack 705 to move upward. Then, the first rack 705 will drive the sliding plate 701 to move upward, and then the sliding plate 701 will drive the sealing plate 703 to move upward. Since the sealing plate 703 is attached to the inner wall of the steel mesh 2, the sealing plate 703 will be inclined. When the first gear 705 is in the state of being pressed down, the first gear 706 is pressed down, and the second gear 707 is pressed down, and the first gear 705 is pressed down, and the second gear 707 is pressed down, and the second ...

[0033] The working principle of the present invention is as follows: electronic components are placed on the linear conveying assembly 12 at the feed port of the device, and then the electronic components are conveyed to the inside of the housing 1 through the linear conveying assembly 12, and then are conveyed to the processing area on the top of the conveying assembly 11. The interior of the conveying assembly 11 is provided with a visual recognition system, which can align the area where the electronic components need to be processed with the processing holes that penetrate the steel mesh 2, and then drive the electric push rod 10 to output, and then the pressing plate 406 will drive the connecting rod 405 to slide into the inside of the feeding box 401, and at the same time the connecting rod 405 will bring The movable connecting plate 404 slides downward along the outside of the inclined slot rod 402. During this process, the connecting plate 404 can drive the stirring blade 403 to move downward synchronously. Since the stirring blade 403 is connected to the outer wall of the inclined slot rod 402 through a thread, the stirring blade 403 rotates along the outer wall of the inclined slot rod 402 during the downward movement, and drives its blades to move, thereby achieving the effect of stirring the solder paste inside the feeding box 401 before printing the electronic components each time. Stirring the solder paste can keep the tin with good fluidity and viscosity; Then, when the pressing plate 406 moves down to a certain position, the pressing plate 406 will be engaged in the pressing groove 407, and then the pressing plate 406 will drive the pressing groove 407 to move downward synchronously, and then the two ends of the feeding box 401 will slide downward along the outer wall of the fixed slide rod 3. When sliding downward to a certain distance, the bottom of the sealing block 409 will contact the top of the steel mesh 2. Since the steel mesh 2 is in a fixed position, the sealing block 409 will be squeezed, and then it will slide upward along the inner wall of the feeding groove 408, and at the same time, it will squeeze the second spring 410. Then, when the sealing block 409 slides as a whole to the inside of the feeding groove 408, the sealing block 409 no longer seals the feeding groove 408, and then the solder paste that has just been stirred in the feeding box 401 will flow downward through the inside of the feeding groove 408, and then it will flow to the top of the steel mesh 2, thereby realizing the feeding of electronic components for printing; After the solder paste is loaded, the second pull rope 608 is pulled by the reset upward movement of the feeding box 401, and then the rotating rod 607 is rotated to reel in the first pull rope 604. During the process, the first pull rope 604 drives the smear scraper 603 to slide against the surface of the steel mesh 2, so that the solder paste can be scraped into the multiple processed holes on the surface of the steel mesh 2, and then it will be squeezed onto the electrical components, thereby completing the printing of the electronic components. The printed electronic components will be conveyed through the straight line of the discharge port. The feeding component 12 is transported out, and then the smear scraper 603 slides along the inner wall of the slide groove 5 to a certain distance, and then contacts the outer wall of the protrusion 8, and then the smear scraper 603 is squeezed, and then when it passes over the protrusion 8, the rotating smear scraper 603 will reset and rotate. At this time, the solder paste moved by the steel mesh 2 will stay on the left side of the smear scraper 603, and then the recovery scraper 602 will rotate synchronously with the smear scraper 603, so that the solder paste stays on the left side of the recovery scraper 602, and then When solder paste printing is required for electronic components, since one end of the first pull rope 604 is connected to the spring of the winding assembly 605, the spring exerts a pulling force on the rotating rod 607 through the first pull rope 604. When loading, one end of the second pull rope 608 is driven downward by the feeding box 401. At this time, the rotating rod 607 is no longer subjected to the pulling force of the second pull rope 608, and is then pulled by the first pull rope 604, so that the rotating rod 607 rotates along the inner wall of the fixed block 606. After the movement, the first pull rope 604 wrapped around the end of the rotating rod 607 will move toward the inside of the winding assembly 605, and in this process, it will drive the connecting block 601 to move. At the same time, the connecting block 601 will drive the recovery scraper 602 to slide to the left along the top of the steel mesh 2, and in the process, it will drive the solder paste on the left to move, so that the excess solder paste adsorbed on the surface of the steel mesh 2 after printing can be scraped off, so that the residual solder paste on the surface of the steel mesh 2 can be automatically scraped off after each printing work is completed.

[0034] It should be noted that the various devices in this application are common devices in the market, and can be selected according to specific needs during specific use. The circuit connection relationship of each device belongs to a simple series and parallel connection circuit. There is no innovation in the circuit connection part. Those skilled in the art can implement it relatively easily. It belongs to the existing technology and will not be elaborated on.

[0035] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A solder paste printing device for electronic components, comprising a housing (1), characterized in that: A steel mesh (2) is fixedly connected to the interior of the housing (1), and a fixed sliding rod (3) is fixedly connected to the top of the steel mesh (2), and a sliding groove (5) is provided on the side wall of the steel mesh (2); The outer wall of the fixed slide rod (3) is provided with a feeding mechanism (4) for stirring the solder paste and automatically feeding the solder paste during printing; The inner wall of the slide trough (5) is provided with a scraper mechanism (6) for automatically recovering the solder paste; A storage mechanism (7) is provided on the top of the steel mesh (2) to seal and store the solder paste when the solder paste is recycled.

2. The electronic component solder paste printing device according to claim 1, characterized in that: The feeding mechanism (4) comprises a feeding box (401), and the inner wall of the feeding box (401) is fixedly connected to an inclined groove rod (402), the inclined groove rod (402) is threadedly connected to a stirring blade (403), and the top of the stirring blade (403) is rotatably connected to a connecting plate (404), the top of the connecting plate (404) is fixedly connected to a connecting rod (405), and the top of the connecting rod (405) is fixedly connected to a pressing plate (406), the top of the feeding box (401) is provided with a pressing groove (407), the bottom of the feeding box (401) is penetrated by a feeding groove (408), and the inner wall of the feeding groove (408) is slidably connected to a sealing block (409), the top of the sealing block (409) is fixedly connected to a second spring (410), and the end of the second spring (410) away from the sealing block (409) is fixedly connected to the inner wall of the sealing block (409); Both ends of the feeding box (401) are slidably connected to the outer wall of the corresponding fixed slide rod (3), the interior of the connecting plate (404) passes through and is slidably connected to the outer wall of the inclined groove rod (402), the outer wall of the connecting rod (405) passes through and is slidably connected to the top of the feeding box (401), and the bottom of the pressing plate (406) corresponds to the inner wall of the pressing groove (407).

3. The electronic component solder paste printing device according to claim 2, characterized in that: The scraper mechanism (6) comprises a connecting block (601), and a recovery scraper (602) is hinged on one side of the connecting block (601), and a smearing scraper (603) is hinged on the other side of the connecting block (601), and a first pull rope (604) is fixedly connected to the inside of the connecting block (601), a winding assembly (605) is fixedly installed on the top of the steel mesh (2), one end of the first pull rope (604) is fixedly connected to the output shaft of the winding assembly (605), a fixed block (606) is fixedly connected to the top of the steel mesh (2), and a rotating rod (607) is rotatably connected to the inner wall of the fixed block (606), and the end of the first pull rope (604) away from the winding assembly (605) is wrapped around the outer wall of the rotating rod (607), and the outer wall of the rotating rod (607) is wrapped with a second pull rope (608).

4. The electronic component solder paste printing device according to claim 3, characterized in that: The end of the recovery scraper (602) is slidably connected to the inner wall of the slide groove (5), and the bottom of the recovery scraper (602) is slidably connected to the top of the steel mesh (2), the end of the smearing scraper (603) is slidably connected to the inner wall of the slide groove (5), and the bottom of the smearing scraper (603) is slidably connected to the top of the steel mesh (2), and the end of the second pull rope (608) away from the rotating rod (607) is fixedly connected to the outer wall of the feeding box (401).

5. The electronic component solder paste printing device according to claim 4, characterized in that: The inner wall of the slide groove (5) is slidably connected to a protrusion (8), and one end of the protrusion (8) is fixedly connected to a first spring (9), and the end of the first spring (9) away from the protrusion (8) is fixedly connected to the inside of the steel mesh (2), and the outer wall of the protrusion (8) corresponds to the side wall of the recovery scraper (602), and the outer wall of the protrusion (8) corresponds to the side wall of the coating scraper (603).

6. An electronic component solder paste printing device according to any one of claims 1 to 5, characterized in that: The storage mechanism (7) comprises a sliding plate (701) and a first mounting frame (702), the inner wall of the sliding plate (701) is slidably connected to a sealing plate (703), and the side wall of the sealing plate (703) is fixedly connected to a third spring (704), an end of the third spring (704) away from the sealing plate (703) is fixedly connected to the inside of the sliding plate (701), the top of the sliding plate (701) is fixedly connected to a first rack (705), the top of the steel net (2) is fixedly connected to a second mounting frame (709), and the outer wall of the second mounting frame (709) is rotatably connected to the second rack (709). A gear (710) is provided, the inner wall of the gear teeth of the gear (710) matches and meshes with the inner wall of the tooth groove of the first rack (705), a tension spring (706) is fixedly connected to the side wall of the first mounting frame (702), and the end of the tension spring (706) away from the first mounting frame (702) is fixedly connected to the second rack (707), the inner wall of the gear teeth of the gear (710) matches and meshes with the inner wall of the tooth groove of the second rack (707), the side wall of the second rack (707) is fixedly connected to a back plate (708), and the side wall of the steel mesh (2) is fixedly connected to a storage box (711).

7. The electronic component solder paste printing device according to claim 6, characterized in that: The side wall of the sliding plate (701) is slidably connected to the side wall of the steel mesh (2), and the interior of the material storage box (711) is connected to the interior of the steel mesh (2).

8. The electronic component solder paste printing device according to claim 2, characterized in that: An electric push rod (10) is fixedly mounted on the top of the shell (1), and the output shaft of the electric push rod (10) is fixedly connected to the top of the pressure plate (406), a conveying component (11) is fixedly mounted on the inner wall of the shell (1), and a linear transmission component (12) is fixedly mounted on the side wall of the shell (1).

Images