A downhold encapsulating device

Abstract

The application discloses a down-hold follow-up type encapsulating device, which comprises a main supporting plate, a rotating disc arranged above the main supporting plate, an encapsulating jig for mounting a micro transformer arranged at the top of the rotating disc, a driving assembly for driving the encapsulating jig to rotate, a down-hold assembly for positioning the micro transformer on the encapsulating jig, a positioning assembly, a slitting assembly for cutting the insulating tape on the micro transformer after encapsulation, a fixing plate and a tensioning assembly. The device has the beneficial effects that: the structure design of the double stations cooperating with the rotating disc positioning facilitates the positioning of the micro transformer during feeding and discharging, shortens the processing time, and the down-hold assembly can assist in positioning the micro transformer, so that the stability of the micro transformer during encapsulation can be ensured, the encapsulation quality of the micro transformer is improved, the remaining tape can be attached after slitting, the function of automatic tape attaching is realized, the processing efficiency is significantly improved, and the device is suitable for batch production.

Description

Technical Field

[0001] This invention relates to the field of micro transformer technology, and more specifically to a pressure-following encapsulation device. Background Technology

[0002] In the production process of miniature transformers, insulating tape needs to be wrapped around the outer wall of the assembled miniature transformer to protect the windings and improve its withstand voltage. Traditional tape wrapping methods often use semi-automatic wrapping machines. The assembled miniature transformer is inserted into a groove on a positioning block on the machine, and a wrapping motor drives the positioning block to rotate, thus completing the wrapping. Finally, a cutter is used for cutting. The main problem with this wrapping method is:

[0003] 1. Manual loading and unloading and positioning are required, which requires a high level of operator skill. The efficiency of the coating process is low, and the error of manual positioning is also large. The micro transformer often deflects, which will affect the quality of the micro transformer coating.

[0004] 2. Due to the different sizes of the covering tape, there are usually three forms: 1) the tape is wider than the magnetic core; 2) the tape is the same width as the magnetic core; 3) the tape is narrower than the magnetic core. The first two forms are prone to falling off the miniature transformer during the wrapping process because the wrapping fixture cannot effectively fix the magnetic core. The positioning accuracy and stability during the wrapping process are insufficient, which in turn affects the accuracy of tape winding and reduces the production quality of the miniature transformer.

[0005] 3. After the micro transformer is coated with insulating tape, when cutting the insulating tape, a portion of the tape is often left over, which requires workers to manually apply, further affecting the efficiency of the coating process. Summary of the Invention

[0006] The purpose of this invention is to provide a pressure-following adhesive coating device to solve the aforementioned problems. This addresses the shortcomings of existing technologies in the positioning accuracy and stability of micro-transformers during adhesive coating, which are prone to deflection during the coating process, affecting the precision of tape winding and reducing the production quality of micro-transformers. Furthermore, the manual feeding method requires a high level of operator skill, and the remaining tape after coating still needs to be manually bonded, affecting processing efficiency and making it unsuitable for mass production. Among the various technical solutions provided by this invention, the preferred solution employs a dual-station rotary table positioning structure, facilitating the loading and unloading of micro-transformers, shortening processing time. Simultaneously, the pressure-following component assists in positioning the micro-transformer, ensuring stability during the adhesive coating process, improving the coating quality, and enabling automatic bonding of remaining tape after slitting. This significantly improves processing efficiency and makes it suitable for mass production, as detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The pressure-following type coating device provided by the present invention includes:

[0009] A main support plate is provided, a turntable is provided above the main support plate, a rubber-coating fixture for installing a micro transformer is provided on the top of the turntable, and a rubber-coating machine base plate is provided below the main support plate;

[0010] The drive assembly, located below the base plate of the coating machine, is used to drive the coating fixture to rotate;

[0011] A driven synchronous pulley is located below the turntable, and an active synchronous pulley is provided on the bottom surface of the main support plate. A synchronous belt is fitted between the active synchronous pulley and the driven synchronous pulley. A turntable motor that drives the active synchronous pulley to rotate is provided below the main support plate.

[0012] The pressing component, mounted on the main support plate, is used to press down and position the miniature transformer on the rubber-coated fixture;

[0013] The positioning component, located on the main support plate on the outside of the turntable, is used to position the turntable.

[0014] The slitting component, located on the main support plate on the outside of the turntable, is used to cut the insulating tape on the miniature transformer after it has been wrapped.

[0015] A fixing plate is fixedly installed on top of the main support plate by bolts, and the fixing plate is provided with a feeding assembly for installing insulating tape;

[0016] The tensioning assembly, mounted on a fixed plate on one side of the feeding assembly, is used to tension the insulating tape.

[0017] Preferably, the slitting assembly includes a slitting bracket, a slitting cylinder, and a cutter. The slitting bracket is mounted on a main support plate and has a guide rail. A movable seat is slidably mounted on the guide rail. A slitting cylinder is provided on one side of the slitting bracket to drive the movable seat to move horizontally. A horizontally arranged support rod is provided on the movable seat. A cutter holder is provided at the end of the support rod. A cutter is provided on the cutter holder, and spring plates are provided on both sides of the cutter.

[0018] Preferably, the rubber-coated fixture includes a bearing mounting base, a drive shaft, and a positioning base. The turntable has a groove formed on it. The bearing mounting base is fixedly installed in the groove of the turntable. The drive shaft is vertically rotatably installed in the bearing mounting base through an oil-free bushing. The positioning base is fixed on the top of the drive shaft. The positioning base has a positioning groove, and a positioning magnet for attracting the core of the miniature transformer is provided in the positioning groove.

[0019] Preferably, the drive assembly includes a drive motor, a winding shaft, and a positioning bushing. The base plate of the overcoating machine is provided with a motor mounting plate, the winding shaft is provided above the motor mounting plate, the motor mounting plate is provided with a rotary motor that drives the winding shaft to rotate, and the positioning bushing that cooperates with the winding shaft is provided below the overcoating fixture.

[0020] Preferably, the outer wall of the positioning bushing is provided with a pull rod, the pull rod is rotatably mounted on the bottom surface of the bearing fixing seat, the end of the pull rod is provided with a tension spring that drives the pull rod to move towards the side wall of the positioning bushing, an external thread bearing is installed on the pull rod, and a groove corresponding to the position of the external thread bearing is formed on the positioning bushing.

[0021] Preferably, the tensioning assembly includes a slide rail, a slider, and a tensioning rod. The slide rail is mounted on a fixed plate, the slider is slidably mounted on the slide rail, the slider is provided with a mounting block, the mounting block is provided with a vertically arranged tensioning rod, the tensioning rod is fitted with a limiting ring for positioning the insulating tape, and the fixed plate is provided with a tension spring for moving the slider on the slide rail.

[0022] Preferably, the pressing assembly includes a pressing support, a pressing cylinder, and a pressing plate. The pressing support is fixed on the main support plate on the outside of the turntable. The pressing cylinder is vertically mounted on the pressing support. The pressing plate is mounted on the pressing cylinder. The pressing plate is provided with a spring seat, and a pressing rod is provided inside the spring seat.

[0023] Preferably, the main support plate is provided with a cam follower for limiting the position of the turntable.

[0024] Preferably, the positioning component includes a support block, a positioning cam seat on one side of the support block, a positioning wheel on the positioning cam seat, a slot on the turntable that mates with the positioning cam seat, and a compression spring between the positioning cam seat and the support block.

[0025] Preferably, the feeding assembly includes a damping cylinder, a rotating shaft seat, and a tape storage tray. The damping cylinder is vertically arranged on the edge of the fixed plate. The rotating shaft seat is rotatably mounted inside the damping cylinder via a bearing. The damping cylinder is provided with a tape storage tray. A test turntable is provided on the side wall of the rotating shaft seat below the tape storage tray. The fixed plate is provided with a slotted switch that cooperates with the test turntable.

[0026] The beneficial effects are:

[0027] The structure design, which adopts a dual-station design with a turntable for positioning, facilitates the loading and unloading of micro transformers, shortens processing time, and assists in positioning the micro transformers with the pressure-adjusting components. This ensures the stability of the micro transformers during the encapsulation process, improves the encapsulation quality, and enables the application of remaining tape after slitting, achieving automatic tape application. This significantly improves processing efficiency and is suitable for mass production. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is the three-dimensional structural view of the present invention. Figure One ;

[0030] Figure 2 This is the three-dimensional structural view of the present invention. Figure Two ;

[0031] Figure 3 This is the three-dimensional structural view of the present invention. Figure Three ;

[0032] Figure 4 This is the three-dimensional structural view of the present invention. Figure Four ;

[0033] Figure 5 This is the three-dimensional structural view of the present invention. Figure Five ;

[0034] Figure 6 This is the invention Figure 3 A magnified view of point A in the image;

[0035] Figure 7 This is a three-dimensional view of the overmolding fixture of the present invention. Figure One ;

[0036] Figure 8 This is a three-dimensional view of the overmolding fixture of the present invention. Figure Two .

[0037] The annotations in the attached figures are explained as follows:

[0038] 1. Drive assembly; 101. Drive motor; 102. Slotted switch one; 103. Motor mounting plate; 104. Transmission slot; 105. Light shield; 106. Winding shaft; 107. Slotted switch adjusting plate; 108. External thread bearing; 109. Positioning bushing; 1010. Pull rod; 1011. Tension spring one; 2. Rubber coating machine base plate; 3. Column; 4. Fixed bracket; 5. Slitting assembly; 501. Moving seat; 502. 503. Support rod; 504. Tool holder; 505. Cutting blade; 506. Spring plate; 507. Buffer; 508. Slitting cylinder; 509. Guide rail; 6. Slitting bracket; 6. Pressing assembly; 601. Pressing support; 602. Pressing cylinder; 603. Pressing plate; 604. Pressing rod; 605. Spring seat; 7. Photoelectric switch mounting plate; 8. Turntable; 9. Synchronous belt; 10. Main support plate; 11. Turntable motor mounting plate 12. Plate; 13. Turntable motor; 14. Induction plate; 15. Driven synchronous pulley; 16. Driven synchronous pulley; 17. Coupling; 18. Positioning assembly; 19. Positioning cam seat; 10. Positioning wheel; 11. Support block; 12. Compression spring; 13. Cam follower; 14. Slot; 15. Rubber-coated fixture; 16. Drive shaft; 27. Positioning seat; 28. Positioning groove; 29. ​​Positioning... Magnet; 2005, Bearing mounting base; 21, Feeding assembly; 2101, Damping cylinder; 2102, Test turntable; 2103, Tape storage tray; 2104, Rotating shaft seat; 2105, Slotted switch three; 22, Tensioning assembly; 2201, Mounting block; 2202, Slider; 2203, Slide rail; 2204, Limit ring; 2205, Tensioning rod; 2206, Tension spring; 23, Fixing plate; 24, Slotted switch two. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0040] See Figures 1-8As shown, the present invention provides a pressure-following type overmolding device, comprising:

[0041] A main support plate 10 is provided, and a turntable 8 is provided above the main support plate 10. The turntable 8 is rotatably engaged with the main support plate 10 via bearings, allowing it to rotate on the main support plate 10. A rubber-coating fixture 20 for mounting a micro transformer is provided on the top of the turntable 8. The rubber-coating fixture 20 is used to mount the micro transformer and can rotate to process the material. It should be noted that there are two rubber-coating fixtures 20, arranged symmetrically with the center of the turntable 8 as the midpoint, divided into a feeding position and a rubber-coating position. During use, the micro transformer to be processed needs to be placed in the feeding position for positioning. During processing, the position of the turntable 8 is adjusted to... The material feeding position is changed between the coating positions to feed in the micro transformer to be processed and to export the micro transformer after coating, realizing automatic loading and unloading and improving processing efficiency. A coating machine base plate 2 is located below the main support plate 10. The coating machine base plate 2 is fixedly installed below the main support plate 10 by a column 3. The coating machine base plate 2 is parallel to the main support plate 10, with a gap reserved in the middle for installing other rotating parts. The coating fixture 20 includes a bearing fixing seat 2005, a drive shaft 2001, and a positioning seat 2002. A slot 19 is formed on the upper part of the turntable 8. The slot 19 is a rectangular slot, extending from top to bottom. The turntable 8, extending through the slot 19, has a series of threaded holes on its top surface. These holes facilitate the installation of the rubber-coating fixture 20 and allow for adjustment of its position to meet various processing requirements. A bearing mounting base 2005 is fixedly installed within the slot 19 of the turntable 8. A drive shaft 2001 is vertically rotatable within the bearing mounting base 2005 via an oil-free bushing. The drive shaft 2001 can rotate within the bearing mounting base 2005, thereby driving the rotation of the rubber-coating fixture 20. A positioning seat 2002 is fixed to the top of the drive shaft 2001. Positioning seat 2002 is used to install and fix the micro transformer. Positioning seat 2002 has a positioning groove 2003. Positioning groove 2003 corresponds to the size and structure of the micro transformer so that the micro transformer can be inserted into the positioning groove 2003 for installation. Positioning groove 2003 is provided with positioning magnet 2004 to attract the iron core of the micro transformer. There are two positioning magnets 2004, which are arranged in a symmetrical structure. In use, the magnetic force between the positioning magnet 2004 and the iron core of the micro transformer can be used to attract and position the transformer, reducing the positioning difficulty during loading and unloading and improving the accuracy during processing.

[0042] The drive assembly 1 is located below the base plate 2 of the coating machine and is used to drive the coating fixture 20 to rotate. Since there are two coating fixtures 20, they are arranged in a symmetrical structure. The drive assembly 1 can transmit power to the coating fixture 20 at the coating position. The drive assembly 1 can provide power to the coating fixture 20, thereby driving the coating fixture 20 to rotate in the turntable 8 to cooperate with the winding of the insulating tape.

[0043] A driven synchronous wheel 14 is positioned below the turntable 8 and is keyed to the turntable 8, enabling it to rotate. Below the driven synchronous wheel 14 is a photoelectric switch mounting plate 7, and below the photoelectric switch mounting plate 7 is a sensing plate 13. A fixed bracket 4 is mounted on the side wall of the main support plate 10, and a slotted switch that cooperates with the sensing plate 13 is mounted on the fixed bracket 4. This allows the photoelectric switch mounting plate 7 and the sensing plate 13 to rotate together as the driven synchronous wheel 14 rotates. The current position of the turntable 8 is determined by detecting whether the sensing plate 13 is inside the slotted switch 24. It should be noted that there are two sensing plates 13, arranged symmetrically, corresponding to two rubber-coated fixtures 20. When the sensing plate 13 is inside the slotted switch 24, it indicates that the rotation angle of the turntable 8 is correctly adjusted and the turntable 8 has not deflected, ensuring processing accuracy. An active [device / mechanism] is located on the bottom surface of the main support plate 10. A synchronous belt 9 is fitted between the driving synchronous pulley 15 and the driven synchronous pulley 14. The synchronous belt 9 meshes with the driving synchronous pulley 15 and the driven synchronous pulley 14 to facilitate coordinated rotation. A turntable motor 12 that drives the driving synchronous pulley 15 is provided below the main support plate 10. A turntable motor mounting plate 103 is provided below the main support plate 10. The turntable motor 12 is fixed on the turntable motor mounting plate 103. The turntable motor 12 and the driving synchronous pulley 15 are connected by a coupling 16 to facilitate power transmission. The output shaft of the turntable motor 12 is connected to the driving synchronous pulley 15 for transmission. In use, the turntable motor 12 drives the driving synchronous pulley 15 to rotate, which drives the driven synchronous pulley 14 to rotate through the synchronous belt 9, thereby realizing the rotation angle adjustment of the turntable 8. This will drive the turntable 8 to rotate, and drive the rubber coating fixture 20 at the feeding position and rubber coating position on the turntable 8 to rotate, thereby cooperating with the loading and unloading of the micro transformer.

[0044] The pressing component 6, mounted on the main support plate 10, is used to press down and position the miniature transformer on the coating fixture 20. When the coating fixture 20 is used alone to position the miniature transformer, its positioning accuracy and stability are limited, and it is prone to deflection during the wrapping of insulating tape, thus affecting the coating quality. Therefore, the pressing component 6 provides positioning support for the top of the miniature transformer and can follow the rotation of the miniature transformer, thereby ensuring the stability of the miniature transformer during the coating process and improving the quality of insulating tape wrapping. The pressing component 6 includes a pressing support 601, a pressing cylinder 602, and a pressing plate 603. The pressing support 601 is fixed to the main support plate 10 outside the turntable 8. The pressing cylinder 602 is vertically mounted on the pressing support 601. The pressing plate 603 is bolted to the piston rod of the pressing cylinder 602. A spring seat 605 is provided, and a positioning hole for mounting the spring seat 605 is opened at the end of the lower pressure plate 603. A lower pressure rod 604 is provided inside the spring seat 605. The position of the lower pressure rod 604 corresponds to the position of the rubber coating fixture 20 at the rubber coating position. The lower pressure rod 604 is rotatably connected to the spring seat 605 through a bearing. It can rotate with the micro transformer while it is in contact with the micro transformer. The lower pressure rod 604 is made of nylon material. After the micro transformer is installed in the rubber coating fixture 20 at the rubber coating position, the lower pressure cylinder 602 works to drive the lower pressure plate 603 to move down, so that the lower pressure rod 604 at the end of the lower pressure plate 603 moves down together until the lower pressure rod 604 abuts against the top of the micro transformer. The spring seat 605 applies a clamping force and positions the micro transformer. It can rotate with the micro transformer while the rubber coating fixture 20 drives it to rotate, thereby achieving coordinated rotation.

[0045] The positioning component 17 is set on the main support plate 10 on the outside of the turntable 8 and is used to position the turntable 8. Since the coating fixture 20 adopts a dual-station design, namely the feeding position and the coating position, the positioning component 17 can be used to position the turntable 8 during the loading and unloading of the micro transformer. The positioning is achieved by switching the positions of the feeding position and the coating position on the coating fixture 20, which prevents the coating fixture 20 from shaking with the turntable 8, thereby ensuring the stability of the turntable 8 during the coating process of the micro transformer and ensuring the coating accuracy.

[0046] The slitting component 5 is set on the main support plate 10 on the outside of the turntable 8. It is used to cut the insulating tape on the micro transformer after it has been wrapped. When the insulating tape on the outer wall of the micro transformer is wrapped, the tape is still stuck to the outer wall of the micro transformer. At this time, the slitting component 5 is used to cut the tape and wrap the remaining tape around the side wall of the micro transformer to avoid residue.

[0047] The fixing plate 23 is fixedly installed above the main support plate 10 by bolts. The fixing plate 23 is a horizontally arranged flat plate structure used to support the feeding assembly 21. The fixing plate 23 is provided with the feeding assembly 21 for installing insulating tape. The feeding assembly 21 is used to install the insulating tape reel and can provide damping tension when the insulating tape is fed, so as to maintain the pressure of the insulating tape during the conveying process and facilitate tensioning.

[0048] The tensioning component 22 is mounted on the fixing plate 23 on one side of the feeding component 21. It is used to tension the insulating tape, guide the tape during the conveying process, and assist in tensioning to ensure that the insulating tape maintains the best conveying condition and improves the tape coating quality.

[0049] During the processing of the micro transformer, the external clamping mechanism removes the micro transformer from the encapsulation fixture 20 previously located at the loading position and places the micro transformer to be processed into the encapsulation fixture 20 at the loading position. The micro transformer is positioned using the positioning groove 2003 on the positioning seat 2002. At this time, the turntable motor 12 drives the active synchronous wheel 15 to rotate, which in turn drives the driven synchronous wheel 14 and the turntable 8 to rotate 180° together via the synchronous belt 9. During this process, the encapsulation fixture 20 located at the loading position rotates to the under-pressing component 6, thereby transferring the micro transformer to be processed to the encapsulation position. At this time, the micro transformer previously encapsulated at the encapsulation position is completed and transported to the loading position. During the position adjustment of the encapsulation fixture 20, the insulating tape moves along with the already processed micro transformer, thereby wrapping around the side wall of the unprocessed micro transformer on another encapsulation fixture 20. Then, the cutting component 5 cuts the insulating tape between the two micro transformers and pushes the remaining tape close to the two micro transformers. On the side wall of the device, the insulating tape is automatically bonded. After bonding, the external clamping mechanism removes the micro transformer that has been wrapped in the loading position and places another micro transformer to be processed into the coating fixture 20 for installation and positioning to achieve loading. It should be noted that during the rotation of the turntable 8, the positioning bushing 109 at the bottom of the coating fixture 20 will rotate into the winding shaft 106 above the drive motor 101 to achieve transmission connection. After the micro transformer is loaded, the pressing cylinder 602 drives the pressing cylinder to press down. The plate 603 moves, causing the pressure bar 604 at the end of the pressure plate 603 to abut against the top surface of the micro transformer to ensure the rotational stability of the micro transformer during the coating process. After the pressure positioning is completed, the drive motor 101 works to drive the winding shaft 106 to rotate, which in turn drives the drive shaft 2001 and the positioning seat 2002 to rotate together, thereby wrapping the insulating tape onto the side wall of the micro transformer until the coating is completed. Then, the processing steps after adjusting the position of the turntable 8 are repeated to complete the entire coating process of the micro transformer.

[0050] In another embodiment, the slitting assembly 5 includes a slitting bracket 509, a slitting cylinder 507, and a cutter 504. The slitting bracket 509 is mounted on the main support plate 10 and is a horizontally arranged L-shaped structure bracket composed of mutually perpendicular long plates and short plates. The long plates are bolted to the surface of the main support plate 10 for support. The slitting bracket 509 is provided with a guide rail 508, which is bolted to the long plate for positioning. A movable seat 501 is slidably mounted on the guide rail 508, and the movable seat 501 and the guide rail 508 are clearance-fitted to achieve [the desired effect]. The sliding bracket 509 features a vertically arranged short plate with a buffer 506 that works in conjunction with the movable seat 501 to achieve buffering and positioning, reducing vibration during the slitting process and improving slitting accuracy. A slitting cylinder 507 is located on one side of the slitting bracket 509, driving the movable seat 501 horizontally. The piston rod of the slitting cylinder 507 is connected to the movable seat 501, enabling it to move horizontally on the slide rail 2203. The movable seat 501 has a horizontally arranged support rod 502, with a tool holder 503 at its end. The device is equipped with a cutter 504, the surface of which has tangential grooves that create a continuously arranged conical structure at the blade edge. This improves the cutting ability of the insulating tape and reduces the contact area between the insulating tape and the cutter 504, increasing the cutting efficiency and preventing material sticking. Spring plates 505 are located on both sides of the cutter 504. Each spring plate 505 is a rectangular strip structure, with its tail fixed to the cutter holder 503 by bolts. The head of each spring plate 505 has an arc-shaped protrusion facing the side wall of the miniature transformer on the coating fixture 20. Furthermore, the positions of the two spring plates 505 correspond to those of the coating fixture 20, allowing them to abut against the side wall of the micro-transformer after the cutting tool cuts the insulating tape. This helps to push and adhere the remaining portion of the insulating tape to the outer wall of the micro-transformer, ensuring coating quality. After the micro-transformer at the coating position is processed, the turntable 8 rotates to change the positions of the two coating fixtures 20, thereby conveying the coating fixture 20 from the loading position to the coating position. It should be noted that during the position change of the coating fixture 20, it is essential to ensure that the insulating tape moves together with the micro-transformer at the coating position. Figure 4For example, the rotation is clockwise, and after the rotation is complete, the miniature transformer at the loading position comes into contact with the insulating tape, thus facilitating the automatic tape application function. At this time, the cutting cylinder 507 drives the moving seat 501 to slide on the guide rail 508, thereby causing the support rod 502 to drive the cutter 504 to move between the two tape-coating fixtures 20, thereby cutting the insulating tape. The spring plates 505 on both sides of the cutter 504 will push the tape to abut against the outer wall of the miniature transformer for positioning and adhesion. It should be noted that since the distance between the miniature transformers on the two tape-coating fixtures 20 needs to be less than twice the length of the side wall of the miniature transformer, it can be ensured that after the insulating tape is cut, the spring plates 505 can stick the remaining tape tightly to the outer wall of the miniature transformer for processing, ensuring the coating quality of the insulating tape.

[0051] In another embodiment, the drive assembly 1 includes a drive motor 101, a winding shaft 106, and a positioning bushing 109. A motor mounting plate 103 is screwed onto the base plate 2 of the overmolding machine. The winding shaft 106 is positioned above the motor mounting plate 103. A light-shielding plate 105 is provided on the outer wall of the winding shaft 106, and a groove for positioning is formed on the light-shielding plate 105. A slotted switch adjustment plate 107 is provided on the motor mounting plate 103, and a slotted switch 102 is provided on the slotted switch adjustment plate 107. During the rotation of the winding shaft 106, a slotted switch 102 will be formed. The movable light-shielding plate 105 rotates together, and the rotation angle of the winding shaft 106 is detected by the slotted switch 102. This ensures that the transmission groove 104 at the top of the winding shaft 106 can be accurately positioned when the winding shaft 106 is stopped. This allows the transmission block at the bottom of the positioning bushing 109 on the turntable 8 to engage with the transmission groove 104 when the turntable 8 rotates, thus achieving a transmission connection. The winding shaft 106 and the motor mounting plate 103 are rotated together by bearings. The motor mounting plate 103 is equipped with a rotating mechanism to drive the winding shaft 106 to rotate. Below the motor and the rubber-coating fixture 20, there is a positioning sleeve 109 that mates with the winding shaft 106. The positioning sleeve 109 is fixedly connected to the drive shaft 2001, and the rotation of the positioning sleeve 109 can drive the drive shaft 2001 to rotate together. It should be noted that the bottom of the positioning sleeve 109 has a cuboid-shaped transmission block, while the top of the winding shaft 106 has a tree-branch-shaped transmission groove 104. Since the rubber-coating fixture 20 adopts a dual-station structure design, there are two positioning sleeves 109 at its bottom. Therefore, on the turntable 8... During the rotation process, when the rubber coating fixture 20 rotates with the turntable 8 to below the rubber coating position, the transmission block at the bottom of the winding shaft 106 can rotate and be inserted into the transmission groove 104 to achieve transmission connection. The winding shaft 106 can be driven to rotate by the drive motor 101. Through the cooperation between the transmission block and the transmission groove 104, power transmission is realized. Finally, the drive motor 101 drives the winding shaft 106, the positioning bushing 109, the drive shaft 2001 and the positioning seat 2002 to rotate together to realize the rotation adjustment of the micro transformer.

[0052] In another embodiment, a pull rod 1010 is provided on the outer wall of the positioning sleeve 109. The pull rod 1010 is rotatably mounted on the bottom surface of the bearing fixing seat 2005, allowing the pull rod 1010 to rotate along the hinge point with the bearing fixing seat 2005. A tension spring 1011 is provided at the end of the pull rod 1010 to drive the pull rod 1010 towards the side wall of the positioning sleeve 109. An external threaded bearing 108 is mounted on the pull rod 1010. A groove corresponding to the position of the external threaded bearing 108 is formed on the positioning sleeve 109. The groove corresponds to the size and structure of the external threaded bearing 108 to facilitate positioning. When the turntable 8 adjusts the two rubber-coating fixtures 20 to be in the rubber-coating position and the material feeding position respectively, it is necessary to ensure that the transmission block at the bottom of the positioning bushing 109 remains vertical so that the transmission block can be smoothly engaged in the gap of the transmission groove 104 at the top of the winding shaft 106, thereby realizing the transmission connection between the winding shaft 106 and the positioning bushing 109. Therefore, it is necessary to drive the pull rod 1010 to move through the tension spring 1011 so that the external thread bearing 108 on the pull rod 1010 can be engaged in the slot on the side wall of the positioning bushing 109 for positioning, ensuring the relative position of the transmission block at the bottom of the positioning bushing 109, so as to improve the positioning accuracy.

[0053] In another embodiment, the tensioning assembly 22 includes a slide rail 2203, a slider 2202, and a tensioning rod 2205. The slide rail 2203 is mounted on the fixed plate 23, and the slider 2202 is slidably fitted onto the slide rail 2203, allowing it to slide horizontally on the slide rail 2203. The slider 2202 has a mounting block 2201, and the mounting block 2201 has a vertically arranged tensioning rod 2205. The tensioning rod 2205 is a vertically arranged round rod structure used to guide the insulating tape. A positioning ring 2204 is fitted onto the tensioning rod 2205 to position the insulating tape. The positioning ring 2204 and the tensioning rod 2205 are connected by threads. During the encapsulation process, the two magnetic cores of the miniature transformer are in a separated state. The micro transformer needs to be wrapped with insulating tape while it is in the spliced ​​state. If the insulating tape is not taut, it is easy for gaps between the magnetic cores to trap the tape during the wrapping process, affecting the wrapping quality. During use, the height of the limit ring 2204 can be adjusted to ensure that the height of the insulating tape corresponds to the outer wall of the micro transformer, thus ensuring the wrapping quality. The fixing plate 23 is equipped with a tension spring 2206 that drives the slider 2202 to move on the slide rail 2203. The two ends of the tension spring 2206 are connected to the fixing plate 23 and the slider 2202 respectively, which can pull the slider 2202 to move on the slide rail 2203, thereby applying tension to the insulating tape through the tensioning rod 2205 to ensure that the insulating tape remains stable during the conveying process.

[0054] In another embodiment, the main support plate 10 is provided with a cam follower 18 for limiting the turntable 8. There are three cam followers 18, which are arranged at equal intervals on the outside of the turntable 8. They can limit the top surface of the turntable 8, ensure that the turntable 8 keeps rotating horizontally, and reduce the impact of deflection fluctuations on the positioning of the micro transformer.

[0055] In another embodiment, the positioning component 17 includes a support block 1703. A positioning cam seat 1701 is provided on one side of the support block 1703. A positioning wheel 1702 is mounted on the positioning cam seat 1701 via a rotating shaft. The turntable 8 has two slots that mate with the positioning cam seat 1701, arranged symmetrically to facilitate precise positioning of the turntable 8 and ensure that the corresponding overmolding fixture 20 is in the overmolding or loading position. The slots are arc-shaped, which can reduce the vibration generated during the movement of the positioning wheel 1702 along the side wall of the turntable 8. To achieve the positioning function of the turntable 8, a clamping spring 1704 is provided between the positioning cam seat 1701 and the support block 1703. When the positions of the two rubber coating fixtures 20 on the turntable 8 are adjusted, the turntable motor 12 drives the active synchronous wheel 15 and the driven synchronous wheel 14 to rotate, thereby driving the turntable 8 to rotate together. Since the position change of the rubber coating fixture 20 requires the turntable 8 to rotate 180°, at this time the positioning cam leaves the slot on the side wall of the turntable 8 and enters the slot on the other side for positioning after the turntable 8 rotates, thereby ensuring the positioning accuracy of the rubber coating fixture 20 and ensuring the rubber coating quality of the micro transformer.

[0056] In another embodiment, the feeding assembly 21 includes a damping cylinder 2101, a rotating shaft seat 2104, and a tape storage tray 2103. The damping cylinder 2101 is vertically disposed along the edge of the fixed plate 23. The rotating shaft seat 2104 is rotatably mounted inside the damping cylinder 2101 via bearings. The tape storage tray 2103 is provided on the damping cylinder 2101 for storing insulating tape. A test turntable 2102 is provided on the side wall of the rotating shaft seat 2104 below the tape storage tray 2103. A slotted switch 2105 that cooperates with the test turntable 2102 is provided on the fixed plate 23. The test turntable 2102 is equipped with... The circular holes used for positioning are designed to detect the rotation angle of the test turntable 2102 by means of a through-beam photoelectric detection method adopted by the slotted switch 2105. The number of circular holes on the test turntable 2102 corresponds to the angle. The rotation angle of the test turntable 2102 can be detected by measuring the transmission status of the photoelectric signal. In order to facilitate the monitoring of the insulation tape feeding data, the test turntable 2102 and the slotted switch 2105 are used to achieve positioning. During the feeding process, the tape storage tray 2103 rotates in the slotted switch 2105, thereby determining the rotation angle of the rotating shaft seat 2104 and the tape storage tray 2103, and finally achieving the positioning of the insulation tape feeding length.

[0057] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A down-stroking encapsulator characterized by: The utility model relates to a micro transformer encapsulating machine, which comprises the following parts: a main support plate (10) provided with a rotating disc (8) above, the top of the rotating disc (8) is provided with a encapsulating jig (20) for installing a micro transformer, the lower side of the main support plate (10) is provided with a encapsulating machine bottom plate (2); a driving assembly (1) arranged below the encapsulating machine bottom plate (2) and used for driving the encapsulating jig (20) to rotate; a driven synchronous wheel (14) arranged below the rotating disc (8), the bottom surface of the main support plate (10) is provided with a driving synchronous wheel (15), the driving synchronous wheel (15) and the driven synchronous wheel (14) are sleeved with a synchronous belt (9), and the lower side of the main support plate (10) is provided with a rotating disc motor (12) used for driving the driving synchronous wheel (15) to rotate; a pressing assembly (6) arranged on the main support plate (10) and used for pressing and positioning the micro transformer on the encapsulating jig (20); a positioning assembly (17) arranged on the main support plate (10) outside the rotating disc (8) and used for positioning the rotating disc (8); a slitting assembly (5) arranged on the main support plate (10) outside the rotating disc (8) and used for cutting the insulating tape on the micro transformer after encapsulation; a fixing plate (23) fixedly arranged above the main support plate (10) through bolts, the fixing plate (23) is provided with a feeding assembly (21) for installing the insulating tape; a tensioning assembly (22) arranged on the fixing plate (23) on one side of the feeding assembly (21) and used for tensioning the insulating tape; the pressing assembly (6) comprises a pressing support (601), a pressing cylinder (602) and a pressing plate (603), the pressing support (601) is fixed on the main support plate (10) outside the rotating disc (8), the pressing cylinder (602) is vertically arranged on the pressing support (601), the pressing plate (603) is arranged on the pressing cylinder (602), the pressing plate (603) is provided with a spring seat (605), and the spring seat (605) is internally provided with a pressing rod (604); the main support plate (10) is provided with a cam follower (18) for limiting the rotating disc (8); the positioning assembly (17) comprises a support block (1703), one side of the support block (1703) is provided with a positioning cam seat (1701), the positioning cam seat (1701) is provided with a positioning wheel (1702), the rotating disc (8) is provided with a clamping groove matched with the positioning cam seat (1701), and the positioning cam seat (1701) and the support block (1703) are provided with a compression spring (1704).

2. The downstroker encapsulator of claim 1 wherein: The slitting assembly (5) comprises a slitting support (509), a slitting cylinder (507) and a cutter (504), the slitting support (509) is arranged on the main support plate (10), the slitting support (509) is provided with a guide rail (508), the guide rail (508) is slidably installed with a moving seat (501), one side of the slitting support (509) is provided with a slitting cylinder (507) for driving the moving seat (501) to move horizontally, the moving seat (501) is provided with a support rod (502) arranged transversely, the end of the support rod (502) is provided with a cutter holder (503), the cutter holder (503) is provided with a cutter (504), and the cutter (504) is provided with spring sheets (505) on both sides.

3. The downforce servo encapsulator of claim 1, wherein: The encapsulation jig (20) comprises a bearing fixing seat (2005), a driving shaft (2001) and a positioning seat (2002), the upper part of the rotating disc (8) is formed with a slot (19), the bearing fixing seat (2005) is fixedly installed in the slot (19) of the rotating disc (8), the driving shaft (2001) is vertically rotatably installed in the bearing fixing seat (2005) through an oil-free bushing, and the positioning seat (2002) is fixed to the top of the driving shaft (2001). The positioning seat (2002) is provided with a positioning groove (2003), and the positioning groove (2003) is provided with a positioning magnet (2004) for adsorbing the micro transformer core.

4. The down-stroking encapsulator of claim 3, wherein: The driving assembly (1) comprises a driving motor (101), a winding shaft (106) and a positioning shaft sleeve (109), the encapsulation machine bottom plate (2) is provided with a motor mounting plate (103), the upper part of the motor mounting plate (103) is provided with a winding shaft (106), the motor mounting plate (103) is provided with a rotating motor (101) for driving the winding shaft (106) to rotate, and the lower part of the encapsulation jig (20) is provided with a positioning shaft sleeve (109) matched with the winding shaft (106).

5. The down-stroking encapsulator of claim 4, wherein: The outer wall of the positioning shaft sleeve (109) is provided with a pull rod (1010), the pull rod (1010) is rotatably installed on the bottom surface of the bearing fixing seat (2005), the end of the pull rod (1010) is provided with a pull spring (1011) for driving the pull rod (1010) to move to the side wall of the positioning shaft sleeve (109), the pull rod (1010) is provided with an external thread bearing (108), and the positioning shaft sleeve (109) is formed with a clamping groove corresponding to the position of the external thread bearing (108).

6. The downforce servo encapsulator of claim 1, wherein: The tensioning assembly (22) comprises a sliding rail (2203), a sliding block (2202) and a tensioning rod (2205), the sliding rail (2203) is arranged on the fixed plate (23), the sliding block (2202) is slidingly sleeved on the sliding rail (2203), the sliding block (2202) is provided with a mounting block (2201), the mounting block (2201) is provided with the vertically arranged tensioning rod (2205), the tensioning rod (2205) is sleeved with a limiting ring (2204) for positioning the insulating tape, and the fixed plate (23) is provided with a tension spring (2206) for driving the sliding block (2202) to move on the sliding rail (2203).

7. The downforce servo encapsulator of claim 1, wherein: The discharging assembly (21) comprises a damping cylinder (2101), a rotating shaft base (2104) and a tape storage disc (2103), the damping cylinder (2101) is vertically arranged at the edge of the fixed plate (23), the rotating shaft base (2104) is rotatably arranged in the damping cylinder (2101) through a bearing, the damping cylinder (2101) is provided with the tape storage disc (2103), the side wall of the rotating shaft base (2104) below the tape storage disc (2103) is provided with a test turntable (2102), and the fixed plate (23) is provided with a slot switch (2105) matched with the test turntable (2102).

Images