Fully automatic bonding system for coil oil passage gaskets

Abstract

This invention belongs to the field of transformer manufacturing and relates to a fully automated bonding system for coil oil passage spacers. It includes an automatic paper spacer feeding device, an automatic paper spacer glue spraying device, and an empty paper tape release and pressing device. The automatic paper spacer feeding device includes a bucket elevator, a vibrating screen, a vibrating disc, and a negative pressure dust removal mechanism. The empty paper tape release and pressing device includes an empty paper tape release mechanism, an empty paper tape tensioning mechanism, and an empty paper tape pressing mechanism. The empty paper tape tensioning mechanism includes a third-stage guide wheel, a second-stage guide wheel, and a first-stage guide wheel. An electromagnetic damping wheel is attached to the third-stage and second-stage guide wheels. The fourth-stage and fifth-stage guide wheels are horizontally arranged and higher than the third-stage guide wheel. The empty paper tape pressing mechanism is installed below the fifth-stage guide wheel. The empty paper tape pressing mechanism includes a servo motor and a pressure roller assembly. The pressure roller assembly is arc-shaped and adjacent to the outer periphery of a counter-clockwise rotating electric turntable, and is concentric with the electric turntable. This invention achieves automated batch feeding of paper spacers and automatic release of empty paper tape, bonding the paper spacers to the empty paper tape.

Description

Technical Field

[0001] This invention belongs to the field of transformer manufacturing technology, specifically relating to a fully automatic bonding system for coil oil passage gaskets. Background Technology

[0002] The production of coil oil channel spacers requires attaching paper spacers at certain intervals to empty paper tape, and then hot-pressing and winding the empty paper tape with attached paper spacers into a roll. The finished coil oil channel spacers can be used inside transformer coils.

[0003] Currently, the paper pads are mainly attached to the blank paper strips manually. Workers in the coil oil channel pad production workshop have long working hours, monotonous and repetitive work, low efficiency, and poor working environment. Furthermore, it is difficult to accurately control the bonding direction of the paper pads and the spacing between adjacent paper pads, which affects the product quality of the coil oil channel pads.

[0004] Therefore, there is an urgent need to design a fully automatic high-speed bonding system for coil oil channel pads, which can automatically bond paper pads to paper tapes, and automatically heat-press the semi-finished coil oil channel pads after the bonding process is completed and wind them into coil oil channel pads, thus forming an automated production line for coil oil channel pads.

[0005] Among the key technical challenges in designing a coil oil channel pad production line are: how to automatically release the empty paper tape and press the paper pad block against the empty paper tape during the bonding process; how to achieve automatic batch feeding of the paper pad block; and how to automatically spray glue onto the paper pad block while preventing the glue nozzle from clogging. Currently, there is no dedicated fully automatic bonding system for coil oil channel pads. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a fully automatic bonding system for coil oil passage gaskets. The technical solution adopted by the present invention is as follows:

[0007] The fully automatic coil oil channel gasket bonding system includes an automatic paper gasket feeding device, an automatic paper gasket glue spraying device, and an empty paper tape release and pressing device. The automatic paper gasket feeding device includes a bucket elevator, which has a lower storage hopper and an upper discharge hopper. The discharge hopper has a discharge port at its bottom opening. An upward-sloping belt conveyor is installed between the storage hopper and the discharge hopper. A vibrating screen is installed below the discharge port of the discharge hopper, and a waste hopper is installed below the vibrating screen. A vibrating disc is installed below the discharge port of the vibrating screen. The feed inlet of the direct vibration conveyor is connected to the vibrating disc. The bottom opening of the waste hopper is sealed and connected to a negative pressure dust removal mechanism. The empty paper tape release and pressing device includes an empty paper tape release mechanism, an empty paper tape tensioning mechanism, and several other components mounted on the frame. The empty paper tape pressing mechanism includes a three-stage guide wheel, a two-stage guide wheel, and a one-stage guide wheel arranged sequentially from top to bottom above the empty paper tape release mechanism. An electromagnetic damping wheel is located outside and close to the three-stage and two-stage guide wheels. The four-stage and five-stage guide wheels are arranged horizontally and are higher than the three-stage guide wheels. An empty paper tape pressing mechanism is installed below the five-stage guide wheel. The empty paper tape pressing mechanism includes a servo motor and a pressure roller group. The pressure roller group is arc-shaped and adjacent to the outer periphery of a counterclockwise rotating electric turntable and is concentric with the electric turntable. A heat-resistant rubber plate for accommodating paper pads is set on the outer periphery of the electric turntable. The discharge port of the direct vibration conveyor corresponds to the glue spraying valve of the automatic glue spraying device for paper pads. The glued paper pads are placed on the heat-resistant rubber plate.

[0008] Preferably, the vibratory feeder includes a vibratory feeder mechanism, a vibratory feeder base plate, and a vibratory feeder cylinder wall. The vibratory feeder base plate is a circular structure with upwardly extending convex plates along its edges. The diameter of the vibratory feeder base plate is larger than the diameter of the vibratory feeder cylinder wall. One corner of the bottom of the vibratory feeder cylinder wall is welded to the vibratory feeder base plate. A notch is formed at the bottom of the vibratory feeder cylinder wall. The vibratory feeder base plate is fixedly installed above the vibratory feeder mechanism. A spirally upward-facing inner material channel for the vibratory feeder hopper is provided on the inner wall of the vibratory feeder cylinder wall, and a spirally downward-facing outer material channel for the vibratory feeder hopper and the vibratory feeder are provided on the outer wall of the vibratory feeder cylinder wall. The material channel outside the hopper is second, and the discharge port of the material channel inside the vibrating hopper is connected to the inlet of the material channel outside the vibrating hopper and the material channel outside the vibrating hopper, respectively. A material exchange baffle is set at the connection position. The discharge ports of the material channel outside the vibrating hopper and the material channel outside the vibrating hopper are connected to the outlet material channel of the vibrating hopper. A lever is set at the outlet of the material channel inside the vibrating hopper. A lever is installed at the inlet of the material channel outside the vibrating hopper and the material channel outside the vibrating hopper, respectively. A lever is installed at the discharge port of the material channel outside the vibrating hopper and the material channel outside the vibrating hopper, respectively.

[0009] Preferably, the vibrating screen includes a square-shaped, open-top and bottom vibrating screen hopper and a rectangular vibrating screen plate. A photoelectric switch is installed on the upper part of the vibrating screen hopper, and a photoelectric switch is installed on the lower part of the vibrating screen hopper. Several screen holes are evenly distributed on the surface of the vibrating screen plate. A waste hopper is installed below the vibrating screen plate. The vibrating screen hopper is fixedly installed on the upper left side of the vibrating screen plate. A downwardly inclined discharge chute is installed on the right end of the vibrating screen plate. The side of the vibrating screen hopper near the discharge chute is a discharge side plate. A direct feed baffle is installed at the edge of the vibrating screen plate between the discharge side plate and the discharge chute. A rectangular discharge port is opened at the lower middle position of the discharge side plate. A discharge baffle that can move up and down is set at the rectangular discharge port. The vibrating screen hopper and the direct feed baffle are fixedly installed on the top of the support by connectors and bolts. An adjusting spring is set between the connectors and the top of the support. A pneumatic turbine vibrator is installed at the lower middle position of the vibrating screen plate. A solenoid valve and a silencer are installed on the pneumatic turbine vibrator.

[0010] Preferably, the discharge end of the vibratory feeder outlet channel is connected to the feed end of the direct vibration conveying mechanism. The direct vibration conveying mechanism includes a direct vibration strip plate, the middle of which is fixedly installed on the direct vibration mechanism. The cross-section of the direct vibration strip plate is L-shaped, and baffles and push plates are fixedly installed on both sides of the length direction of the direct vibration strip plate, respectively.

[0011] Preferably, a material shortage detection mechanism is fixedly installed at the outer front end of the fixed baffle, and a full material detection mechanism is fixedly installed at the outer rear end of the fixed baffle. An L-shaped height adjustment plate is set above the feeding end of the straight vibrating strip plate. The distance between the horizontal plate of the height adjustment plate and the straight vibrating strip plate can be adjusted. A pusher cylinder and a laser rangefinder are respectively set on both sides of the straight vibrating strip plate near the height adjustment plate. A notch is set on the straight vibrating strip plate at the push rod of the pusher cylinder.

[0012] Preferably, the pressure roller assembly includes a pressure roller assembly housing, a drive wheel, a transmission belt, and several driven wheels. The servo motor and the pressure roller assembly housing are mounted on a mounting frame. The drive wheel, transmission belt, and driven wheels are located inside the pressure roller assembly housing. The drive wheel and driven wheels are rotatably connected to both sides of the pressure roller assembly housing. The output shaft of the servo motor is connected to the drive wheel. The drive wheel and driven wheels are connected by transmission belt.

[0013] Preferably, the empty paper tape release mechanism includes a main shaft, which is a circular steel pipe with a platform formed on the upper part. Both ends of the main shaft are mounted in bearing seats. A pair of bearing seats are symmetrically mounted on the middle crossbeam along the length of the mounting frame. Positioning bolt holes are machined at both ends of the main shaft platform, and several positioning holes are evenly distributed in the middle of the main shaft platform. The bearing seats include an upper seat and a lower seat with a locking structure. The upper surface of the middle part of the lower seat is machined with an arc-shaped step that matches the lower ends of the main shaft. Bolt through holes are machined on the upper horizontal panel of the upper seat, and positioning bolts are screwed into the positioning bolts at both ends of the main shaft through these through holes. In the bolt holes, several bushings corresponding to the positioning holes are fitted in the middle of the main shaft. Spring pins are inserted into the main shaft positioning holes on the left side of the bushings. Empty paper tape reels are rotated and fitted on the bushings. The bushings include a bushing body. A glass fiber plate disc is integrally formed at the left end of the bushing body. The diameter of the glass fiber plate disc is larger than the diameter of the bushing body. A groove step is provided at the right end of the bushing body. Threads are machined on the groove step. A round nut is threaded and fitted on the right end of the bushing body. N layers of adjusting washers are provided on the left side of the round nut. N is zero or a positive integer.

[0014] Preferably, a hot pressing mechanism and a photoelectric switch are arranged from top to bottom on the mounting base plate between the secondary guide wheel and the primary guide wheel. The hot pressing mechanism includes an upper hot pressing plate, a lower hot pressing plate and support plates on both sides. A clamping bolt is threaded onto the upper hot pressing plate. The upper hot pressing plate and the lower hot pressing plate are constant-temperature silicone rubber heating plates.

[0015] Preferably, the automatic glue spraying device for paper pads includes: a device bracket, a glue spraying tank, a glue spraying valve, and a glue nozzle anti-clogging device. A servo motor, a mounting plate, a linear guide rail, a ball screw, and a cylinder lifting mechanism are fixedly mounted on the device bracket. The servo motor's shaft is connected to the rear end of the ball screw via a synchronous belt drive. The front end of the ball screw passes through the mounting plate and is rotatably connected to the mounting plate via a bearing. The bottom end of the slider is slidably connected to the linear guide rail. An internal threaded hole is formed at the center of the slider, and the ball screw passes through the internal threaded hole of the slider. A connecting transition plate is fixedly mounted on the right side of the slider. A pneumatic slide is fixedly mounted on the right side of the connecting transition plate. The glue spraying valve is fixedly mounted on the sliding plate on the right side of the pneumatic slide. The glue spraying tank is fixedly mounted on... The glue spraying valve is located on the right side, with the glue outlet of the glue spraying tank connected to the glue spraying valve. The cylinder lifting mechanism is located behind the right side of the glue spraying valve. The glue spraying nozzle anti-clogging device includes a waste glue box and a sealing glue box, which are arranged side by side on the upper horizontal fixed plate. The sealing glue box contains glue. The upper horizontal fixed plate is fixedly connected to the middle vertical fixed plate and the lower horizontal fixed plate as a whole. The vertical fixed plate is fixedly connected to the lifting cylinder of the cylinder lifting mechanism. The synchronous pulley cover is fixedly installed on the device bracket. The servo motor shaft passes through the synchronous pulley cover and is rotatably connected to the synchronous pulley cover through bearing one. The ball screw is arranged parallel to the servo motor shaft. The rear end of the ball screw passes through the synchronous pulley cover and is rotatably connected to the synchronous pulley cover through bearing two.

[0016] Preferably, a pair of semi-circular elastic mounting clips are fixedly installed on the upper right side of the glue spray valve, the upper part of the glue spray tank is clamped in the elastic mounting clips, the glue outlet of the glue spray tank is located at the lower end, the glue outlet of the glue spray tank is machined with pipe threads on the outer periphery, and the glue outlet of the glue spray tank is fastened to the component module of the glue spray valve with a nut.

[0017] The beneficial effects of this invention are:

[0018] The vibrating screen of this invention can remove impurities from the paper pads and automatically recover the impurities to the negative pressure dust removal mechanism. The vibrating plate and the direct vibration conveying mechanism can automatically arrange the paper pads, ensuring the accuracy of automatic feeding of the paper pads. By setting up a five-stage guide wheel, an empty paper tape tensioning mechanism and an empty paper tape pressing mechanism, the automatic release and pressing of the empty paper tape is realized. By setting up a pressure roller group, the empty paper tape is automatically pressed against the paper pads with adhesive sprayed on the upper surface of the electric turntable, and the paper pads are automatically adhered to the empty paper tape. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of attaching paper pads to a paper tape according to an embodiment of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the empty paper tape release and clamping device according to an embodiment of the present invention;

[0022] Figure 3 for Figure 2 A schematic diagram of the empty paper tape release and clamping device after the frame has been removed;

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the empty paper tape release mechanism according to an embodiment of the present invention;

[0024] Figure 5 This is a front view of the empty paper tape release mechanism according to an embodiment of the present invention;

[0025] Figure 6 This is a left view of the empty paper tape release mechanism according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the empty paper tape tray clamping mechanism according to an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the spring pin structure according to an embodiment of the present invention;

[0028] Figure 9This is a schematic diagram of the bushing structure according to an embodiment of the present invention;

[0029] Figure 10 This is a three-dimensional structural schematic diagram of the empty paper tape tensioning mechanism according to an embodiment of the present invention;

[0030] Figure 11 This is a three-dimensional structural diagram of the empty paper tape pressing mechanism according to an embodiment of the present invention;

[0031] Figure 12 This is a cross-sectional view of the pressure roller assembly according to an embodiment of the present invention;

[0032] Figure 13 This is a schematic diagram of the automatic paper pad feeding device according to an embodiment of the present invention;

[0033] Figure 14 This is a schematic diagram of the structure of the vibrating screen according to an embodiment of the present invention;

[0034] Figure 15 for Figure 14 The left view;

[0035] Figure 16 This is a three-dimensional structural diagram of the vibratory feeder according to an embodiment of the present invention;

[0036] Figure 17 for Figure 16 Top view;

[0037] Figure 18 This is a cross-sectional view of the vibratory feeder according to an embodiment of the present invention;

[0038] Figure 19 This is an enlarged view of the installation of the third paddle in an embodiment of the present invention;

[0039] Figure 20 This is a schematic diagram of the direct vibration conveying mechanism according to an embodiment of the present invention;

[0040] Figure 21 This is a three-dimensional structural diagram of the automatic glue spraying device for paper pads according to an embodiment of the present invention;

[0041] Figure 22 This is a schematic diagram of the hot air circulation mechanism according to an embodiment of the present invention;

[0042] Among them, 1 is the frame, 2 is the empty paper tape tray, 3 is the coil oil passage pad, 4 is the empty paper tape tensioning mechanism, 5 is the empty paper tape pressing mechanism, 6 is the empty paper tape, 7 is the main shaft, 8 is the shaft seat, 9 is the positioning bolt, 10 is the spring pin, 11 is the glass fiber plate disc, 12 is the round nut, 13 is the adjusting washer, 14 is the pull ring, 15 is the spring, 16 is the pin, 17 is the connecting plate, 18 is the first-stage guide wheel, 19 is the second-stage guide wheel, 20 is the third-stage guide wheel, 21 is the electromagnetic damping wheel, 22 is the hot pressing mechanism, 23 is the pressing bolt, 24 is the mounting base plate, 25 is the photoelectric switch, and 26 is... Guide wheel mounting base; 27 is a fourth-stage guide wheel; 28 is a fifth-stage guide wheel; 29 is servo motor one; 30 is the pressure roller assembly housing; 31 is the driving wheel; 32 is the driven wheel; 33 is the transmission belt; 34 is the bushing body; 35 is the paper pad block; 38 is the bucket elevator; 39 is the vibrating screen; 40 is the negative pressure dust removal mechanism; 41 is the vibrating plate; 42 is the connecting pipe; 43 is the direct vibration conveying mechanism; 44 is the vibrating screen hopper; 45 is the adjusting spring; 46 is the vibrating screen plate; 47 is the bracket; 48 is the second photoelectric switch; 49 is the discharge side plate; 50 is the direct feed baffle; 51 is the discharge chute; 52... 53 is a dual-laser ranging mechanism; 54 is a waste hopper; 55 is a solenoid valve; 56 is a silencer; 57 is a pneumatic turbine vibrator; 58 is a vibratory plate; 59 is the inner material channel of the vibratory plate hopper; 60 is the first outer material channel of the vibratory plate hopper; 61 is the second outer material channel of the vibratory plate hopper; 62 is a material changing channel baffle; 63 is a first paddle; 64 is a second paddle; 65 is a third paddle; 66 is the vibratory plate outlet channel; 67 is a straight vibrating strip plate; 68 is a fixed baffle; 69 is a push plate; 70 is the straight vibrating mechanism; 71 is a pushing cylinder; 72 is a height paddle; 73... Laser rangefinder II, 74 is the material shortage detection mechanism, 75 is the full material detection mechanism, 76 is the vibratory feeder cylinder wall, 77 is the vibratory feeder cylinder wall notch, 78 is the servo motor II, 79 is the slider, 80 is the mounting plate, 81 is the pneumatic slide table, 82 is the glue spraying valve, 83 is the cylinder lifting mechanism, 84 is the lower horizontal fixing plate, 85 is the vertical fixing plate, 86 is the waste glue box, 87 is the sealing glue box, 88 is the upper horizontal fixing plate, 89 is the glue spraying bucket, 90 is the connecting transition plate, 91 is the linear guide rail, 92 is the ball screw, 93 is the synchronous belt pulley cover, 94 is the heating fan, and 95 is the hot air duct. Detailed Implementation

[0043] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0044] like Figure 1As shown, the paper pad 35 used on the coil oil channel pad strip is a hexagonal cuboid structure. The length of the paper pad 35 is a, the width is b, and the height is c. The width of the empty paper strip 6 is d. When bonding, the length direction of the paper pad 35 needs to be consistent with the width direction of the empty paper strip 6. The four long edges of the paper pad 35 along its length direction are machined with arc structures, while the other eight edges are right-angle structures. After machining the arc structures on the four long edges, when the empty paper strip 6 is wrapped around the front / back and top / bottom four sides of the paper pad 35, the arc structures are less likely to cut the empty paper strip 6 during the stress process. When bonding the paper pad 35 to the empty paper strip 6, the accuracy of the orientation of the paper pad 35 bonded to the empty paper strip 6 and the accuracy of the spacing e between adjacent paper pads 35 must both reach 100%.

[0045] like Figure 2 As shown, the fully automatic coil oil channel pad bonding system includes a frame 1 and an empty paper tape release and clamping device fixedly installed on the frame 1, as well as an automatic paper pad feeding device and an automatic paper pad glue spraying device fixedly installed on one side of the length direction of the frame 1. The frame 1 is a frame with a cubic structure in its outer contour. A cabinet is set in the middle of the lower part of the frame 1, and an electric turntable is rotatably installed in the width direction of the frame 1, with the lower part of the electric turntable located in the cabinet. Considering the simplicity of the composition, Figure 2 Only the empty paper tape release and clamping device is shown; the automatic glue spraying device for paper pads, the automatic feeding device for paper pads, and the electric turntable are not shown.

[0046] like Figure 2-12 As shown, the empty paper tape release and pressing device includes an empty paper tape release mechanism, an empty paper tape tensioning mechanism 4, and several sets of empty paper tape pressing mechanisms 5 (three sets in this embodiment) fixedly installed on the frame 1. The empty paper tape release mechanism is used to convey the empty paper tape 6 wound on the empty paper tape tray 2. The empty paper tape tensioning mechanism 4 is used to provide a certain tension force for conveying the empty paper tape 6. The empty paper tape pressing mechanism 5 is used to press the empty paper tape 6 with the paper pad block 35 sprayed with adhesive. After the paper pad block 35 is firmly bonded to the empty paper tape 6 at a certain distance, it becomes the coil oil channel pad strip 3. The coil oil channel pad strip 3 is wound into a roll by the winding mechanism to become the finished product.

[0047] The empty paper tape release mechanism includes a main shaft 7 and an empty paper tape tray 2. The main shaft 7 is a circular steel pipe with a platform on the upper part. The upper surface of the main shaft 7 has positioning bolt holes at both ends. Several positioning holes are evenly distributed in the middle of the upper surface of the main shaft 7. The positioning holes are used to position and install the empty paper tape tray 2. The two ends of the main shaft 7 are fixedly installed in the bearing seats 8. A pair of bearing seats 8 are symmetrically fixed to the middle crossbeam of the frame 1 along the length direction by bolts. The bearing seats 8 are rectangular in shape, including an upper seat and a lower seat with a snap-fit ​​structure. The upper surface of the middle part of the lower seat is machined with an arc step that matches the lower part of the two ends of the main shaft 7. The main shaft 7 has several bushings corresponding to the positioning holes in its middle part. The empty paper tape tray 2 is rotated and mounted on the bushings. First, the two ends of the main shaft 7 are installed in the arc step. The working position of the empty paper tape tray 2 corresponds to the empty paper tape tensioning mechanism 4. After the working position of the empty paper tape tray 2 is adjusted, the upper seat is then snapped onto the lower seat. The upper horizontal panel of the upper seat is machined with bolt through holes. The positioning bolts 9 pass through the bolt through holes and are screwed into the positioning bolt holes at both ends of the main shaft 7, so that the main shaft 7 is firmly installed in the shaft seat 8.

[0048] The bushing includes a bushing body 34. A glass fiber plate disc 11 is integrally formed at the left end of the bushing body 34. The diameter of the glass fiber plate disc 11 is larger than the diameter of the bushing body 34. A grooved step is provided at the right end of the bushing body 34, and threads are machined on the grooved step. A round nut 12 is threaded onto the right end of the bushing body 34. The width of the empty paper tape reel 2 typically varies between 6-20mm. To ensure that the round nut 12 can fit tightly against the right side of the empty paper tape reel 2 and to reduce the time required to tighten the round nut 12, several layers of adjusting washers 13 are provided on the left side of the round nut 12 according to the different widths of the empty paper tape reel 2. Figure 4The three-layer adjusting washer 13 (or one to three layers of adjusting washer 13, or no adjusting washer 13) is installed in the positioning hole on the main shaft 7 on the left side of the glass fiber plate disc 11. The bushing body 34, glass fiber plate disc 11, adjusting washer 13, spring pin 10 and round nut 12 together constitute the empty paper tape tray clamping mechanism. The left side of the empty paper tape tray clamping mechanism is positioned by the spring pin 10. Each empty paper tape tray clamping mechanism is an independent whole, and each empty paper tape tray 2 is equipped with a set of empty paper tape tray clamping mechanisms. The empty paper tape tray 2 includes a tray inner ring rotatably mounted on the bushing body 34. The tray inner ring can rotate around the bushing body 34 to release the empty paper tape 6. The left and right sides of the tray inner ring are integrally formed with a left disc and a right disc. The empty paper tape 6 is wound on the tray inner ring and clamped between the left disc and the right disc. After inserting the spring pin 10 at the working position of the empty paper tape reel 2 and tightening the round nut 12, the glass fiber plate disc 11 and the adjusting washer 13 apply a certain clamping force to the empty paper tape reel 2. The clamping force prevents the empty paper tape reel 2 from rotating too fast and simultaneously positions and fixes the output direction of the empty paper tape 6. The spring pin 10 is inserted into the positioning hole on the main shaft 7 to limit the left side of the glass fiber plate disc 11. The spring pin 10 includes an L-shaped connecting plate 17. One end of the connecting plate 17 has upper and lower through holes for the pin 16 to pass through. A spring 15 is installed between the upper and lower through holes. The pin 16 passes through the upper and lower through holes and the spring 15. A pull ring 14 is provided at the upper end of the pin 16. Pulling the pull ring 14 can pull the pin 16 out of the positioning hole of the main shaft 7, or push the pull ring 14 downward to insert the pin 16 into the positioning hole of the main shaft 7, so as to realize the position change of the empty paper tape reel 2 on the main shaft 7. When changing the empty paper tape reel 2, simply pull out the spring pin 10 to move the empty paper tape reel 2 between different workstations, achieving rapid reel changing. The middle of the main shaft 7 is the working position, the right side is the material preparation position for placing several spare empty paper tape reels 2, and the left side is the empty reel position for placing used empty reels. The spare empty paper tape reels 2 are moved forward one by one to the working position to complete the rapid reel changing, which can be completed in about one minute. This is beneficial for continuous operation of the equipment and saves the time occupied by reel changing in the equipment operation.

[0049] The empty paper tape tensioning mechanism 4 includes a mounting base plate 24, which is a long strip plate. The mounting base plate 24 is vertically welded to the frame 1 at the working position corresponding to the empty paper tape tray 2. Three guide wheel mounting seats 26 are welded to the mounting base plate 24 from top to bottom. The third-stage guide wheel 20, the second-stage guide wheel 19, and the first-stage guide wheel 18 are rotatably mounted on the guide wheel mounting seats 26 from top to bottom. The third-stage paper tape guide wheel is used for directional conveying of the empty paper tape 6 and has an anti-deviation limiting function for the empty paper tape 6. A hot-pressing mechanism 22 and a photoelectric switch 25 are arranged from top to bottom on the mounting base plate 24 between the secondary guide wheel 19 and the primary guide wheel 18. The photoelectric switch 25 is used to detect the presence or absence of empty paper tape 6. The hot-pressing mechanism 22 includes an upper hot-pressing plate, a lower hot-pressing plate, and support plates on both sides. A clamping bolt 23 is threaded onto the upper hot-pressing plate of the hot-pressing mechanism 22. The empty paper tape 6 passes through the opening formed by the upper hot-pressing plate, the lower hot-pressing plate, and the support plates on both sides. The upper and lower hot-pressing plates are constant-temperature silicone rubber heating plates. The hot-pressing mechanism 22 is used to preheat the empty paper tape 6 and heat the bonding joint of the empty paper tape 6. An electromagnetic damping wheel 21 is fixedly mounted on the mounting base plate 24 by the frame. The electromagnetic damping wheel 21 is located outside the tertiary guide wheel 20 and the secondary guide wheel 19, and the electromagnetic damping wheel 21 is close to the tertiary guide wheel 20 and the secondary guide wheel 19. The empty paper tape 6 passes sequentially through the first-stage guide wheel 18, photoelectric switch 25, hot pressing mechanism 22, second-stage guide wheel 19, electromagnetic damping wheel 21 and third-stage guide wheel 20, and then is conveyed to the empty paper tape pressing mechanism 5 through the fourth-stage guide wheel 27 and fifth-stage guide wheel 28. The fourth-stage guide wheel 27 and fifth-stage guide wheel 28 are fixedly mounted on the frame 1 through the guide wheel mounting base 26. The fourth-stage guide wheel 27 and fifth-stage guide wheel 28 are arranged horizontally and are higher than the third-stage guide wheel 20.

[0050] An electric turntable that rotates counterclockwise is provided at the empty paper tape pressing mechanism 5. The empty paper tape pressing mechanism 5 includes a matching servo motor 29 and a pressure roller group. The pressure roller group includes a pressure roller group housing 30, a drive wheel 31, a transmission belt 33, and several driven wheels 32. The servo motor 29 and the pressure roller group housing 30 are fixedly mounted on the frame 1. The drive wheel 31, the transmission belt 33, and the several driven wheels 32 are located inside the pressure roller group housing 30. The drive wheel 31 and the driven wheels 32 are rotatably connected to both sides of the pressure roller group housing 30. The output shaft of the servo motor 29 is connected to the drive wheel 31 to drive its rotation. The drive wheel 31 and the several driven wheels 32 are rotatably connected through the transmission belt 33. The drive wheel 31 and the driven wheels 32 in the several pressure roller groups are arranged in an arc shape and are concentric with the electric turntable.

[0051] Laser rangefinder 1 is installed at the head and tail of the empty paper tape pressing mechanism 5. The laser rangefinder 1 detects the distance of the paper pad block 35 in real time. If the difference between the two sides of the paper pad block 35 exceeds the tolerance, it indicates that the paper pad block 35 is tilted or displaced. The alarm will be triggered and the machine will be stopped to find the cause.

[0052] The empty paper tape release and clamping device of this invention operates as follows:

[0053] First, seven empty paper tape reels 2 of the required specifications and sizes are respectively threaded onto the main shaft 7 through the empty paper tape reel clamping mechanism. Spring pins 10 are inserted into the corresponding positioning holes of the main shaft 7 to fix the empty paper tape reels 2 on the main shaft 7. The two ends of the main shaft 7 are placed into the shaft seats 8, and the empty paper tape reels 2 in the working position are aligned with the empty paper tape tensioning mechanism 4. Then, the two ends of the main shaft 7 are fixed with positioning bolts 9, which means fixing the working position of the empty paper tape reels 2. When the empty paper tape 6 on the empty paper tape reel 2 in the working position is used up and a new empty paper tape reel 2 needs to be replaced, the new empty paper tape reel 2 is manually moved to the working position and fixed. The head end of the new empty paper tape 6 is pulled out and glued to the tail end of the used empty paper tape 6. The glued part is placed in the hot pressing mechanism 22, and the upper clamping bolts 23 are tightened to press and bond. The glue at the glued part can be completely cured in about 40 seconds. After the glue has cured, the clamping bolts 23 are loosened. The empty paper tape tray 2 is fed by the empty paper tape tensioning mechanism 4 with a certain tension force to deliver the empty paper tape 6. The three-stage guide rollers guide the empty paper tape 6 in a directional manner. The empty paper tape 6 passes through the first-stage guide roller 18, photoelectric switch 25, hot pressing mechanism 22, second-stage guide roller 19, electromagnetic damping roller 21 and third-stage guide roller 20 in sequence, and then passes through the fourth-stage guide roller 27 and fifth-stage guide roller 28 to be delivered between the pressure roller group and the electric turntable. The photoelectric switch 25 determines whether there is an empty paper tape 6. When no empty paper tape 6 is detected, the control equipment stops. The outer periphery of the electric turntable is equipped with a heat-resistant rubber plate for accommodating the paper pad 35. The upper surface of the paper pad 35 is sprayed with adhesive. After the empty paper tape 6 is guided by the five-stage guide rollers 28, the inner side of the empty paper tape 6 is attached to the adhesive-coated side of the paper pad 35 on the outer periphery of the electric turntable. The outer side of the empty paper tape 6 is attached to the drive belt 33 of the empty paper tape pressing mechanism 5. The empty paper tape pressing mechanism 5, in conjunction with the electric turntable, firmly adheres the paper pad 35 to the empty paper tape 6 to form the coil oil passage pad 3. The coil oil passage pad 3 continues to rotate with the electric turntable and is finally wound into a coil by the winding mechanism. Furthermore, a semi-circular constant temperature heating belt can be provided at the lower part of the electric turntable to heat the coil oil passage pad 3 at a constant temperature.

[0054] The rotational speeds of the driving roller 31 and driven roller 32 of the pressure roller assembly are automatically matched with the rotational speed of the electric turntable through a control system. The control system ensures that their linear velocities are the same, thus synchronously pressing the paper pads 35 onto the rotating empty paper tape 6. The pushing mechanism places the paper pads 35 into the heat-resistant rubber plate on the outer circumference of the electric turntable as the turntable rotates, and they are bonded to the empty paper tape 6 under a certain pressure. The pushing mechanism is based on the flying shear principle; different spacings of the paper pads 35 correspond to different flying shear curves, matching different rotational speeds of the electric turntable. The flying shear is an electronic cam motion that can be used to control many different spacing lengths.

[0055] like Figure 13-20 As shown, the automatic paper pad feeding device includes: a bucket elevator 38, a vibrating screen 39, a negative pressure dust removal mechanism 40, and a vibrating plate 41. The bucket elevator 38 is fixedly installed on the ground. The vibrating screen 39 is fixedly installed at the discharge port of the upper discharge hopper of the bucket elevator 38. The vibrating plate 41 is installed below the discharge port of the vibrating screen 39. The outlet of the waste hopper 53 at the bottom of the vibrating screen 39 is sealed and connected to the negative pressure dust removal mechanism 40 located on the ground through a connecting pipe 42. The direct vibration conveying mechanism 43 is connected to the vibrating plate outlet channel 66 of the vibrating plate 41. After being sorted by the vibrating plate 41, the paper pads 35 are conveyed to the glue spraying mechanism by the direct vibration conveying mechanism 43, where glue is sprayed onto the surface of the paper pads 35.

[0056] The bucket elevator 38 includes a lower storage hopper and an upper discharge hopper. The discharge hopper has an open bottom. An upward-sloping belt conveyor is installed between the storage hopper and the discharge hopper. Several horizontal conveyor baffles are installed on the belt conveyor. The belt conveyor is powered by a drive motor. A transparent, openable cover is installed above the storage hopper. A transparent cover is installed above the belt conveyor and the conveyor baffles for easy observation of the paper pad blocks 35. The required batch of paper pad blocks 35 is fed into the storage hopper of the bucket elevator 38 at once. The bucket elevator 38 can achieve continuous automatic feeding of paper pad blocks 35 through the belt conveyor and conveyor baffles. A photoelectric switch is installed in the lower storage hopper of the bucket elevator 38 as a material-empty sensor. The photoelectric switch detects the paper pad blocks 35 in the storage hopper. When the photoelectric switch detects that there is no material in the storage hopper, it automatically sends a material-empty alarm signal to the control system. Stainless steel is the preferred material for the parts of the bucket elevator 38 that come into contact with the paper pad block 35.

[0057] Parameter table of bucket elevator 38

[0058] name Specification Notes - Product Brand Pipeline bandwidth 300mm Storage bin volume Approximately 0.15 m³ power supply AC220V Motor power 400w Careful research Digital display panel speed controller Speed ​​range 90-1400 r / min Careful research frame 8040 aluminum profile Storage bin material 304 stainless steel Protective cover and cover plate Transparent acrylic sheet Feed port height 700mm Material discharge port height H Based on the design drawings

[0059] This bucket elevator 38 can meet 8 hours of production with a single feeding (based on the specifications of paper pads 35, which are 14*13*8 mm). It has the following features: the conveying speed is adjustable through a speed-regulating drive motor; the belt conveyor mechanism is anti-slip and anti-deviation; the entire top of the belt conveyor mechanism is sealed with a cover to reduce dust falling in; the transparent cover allows for direct observation of the paper pads 35 in the storage bin; the transparent cover allows for direct observation of the operation of the belt conveyor mechanism and the conveying of the paper pads 35 on the belt conveyor mechanism; it has an automatic material detection function for the paper pads 35 in the storage bin, and the control system prompts timely replenishment when there is no material.

[0060] Parameter table of vibrating screen 39

[0061] name Specification Notes - Product Brand vibrator K10 angle 5-10 degrees adjustable Vibrating plate area 450mm*500mm power supply DC24V Solenoid valve 4V210 Yatak Overall material 304 stainless steel Dust collection hopper 304 stainless steel Full warehouse of sensors Through-beam photoelectric Omron frame Non-standard, carbon steel powder coated

[0062] The vibrating screen 39 includes a square-shaped, open-top and bottom-opening vibrating screen hopper 44 and a rectangular vibrating screen plate 46. A through-beam photoelectric switch 48 is installed at the top of the vibrating screen hopper 44 as a full-hopper sensor, and a through-beam photoelectric switch 3 is installed at the bottom of the vibrating screen hopper 44 as a no-material sensor. Several φ5mm screen holes are evenly distributed on the surface of the vibrating screen plate 46. A waste hopper 53 is installed below the vibrating screen plate 46. Waste refers to dust and debris adhering to the paper pad block 35. The bottom opening of the waste hopper 53 connects to the upper end of the connecting pipe 42. A vibrating screen hopper 44 is fixedly installed on the upper left side of the vibrating screen plate 46. A downwardly inclined discharge chute 51 is installed on the right end of the vibrating screen plate 46, located above the vibrating plate 41. A discharge side plate 49 is located on the side of the vibrating screen hopper 44 closest to the discharge chute 51. A direct feed baffle 50 is installed along the edge of the vibrating screen plate 46 between the discharge side plate 49 and the discharge chute 51. A pair of direct feed baffles 50 are installed parallel to each other along the length of the vibrating screen plate 46. A rectangular discharge port is opened at the lower middle position of the discharge side plate 49. The rectangular discharge port is a rectangular through hole of a certain height. A discharge baffle that can move up and down is installed at the rectangular discharge port. The up and down movement of the discharge baffle is achieved by the control system through the control of the discharge cylinder. The vibrating screen hopper 44 and the direct feed baffle 50 are fixedly installed on the top of the bracket 47 by connectors and bolts. An adjusting spring 45 is installed between the connectors and the top of the bracket 47. A pneumatic turbine vibrator 56 is installed at the lower center of the vibrating screen plate 46. A solenoid valve 54 and a silencer 55 are installed on the pneumatic turbine vibrator 56. The control system controls the pneumatic turbine vibrator 56 through the solenoid valve 54.

[0063] The frame 12 is a rigid support frame. A laser ranging base is welded to the frame 12 near the vibrating plate 41. A dual laser ranging mechanism 52 is fixed to the left and right ends of the laser ranging base by bolts. The laser beam of the dual laser ranging mechanism 52 shines into the interior of the vibrating plate 41. The control system sets the upper and lower limits of the height of the paper pad 35 in the vibrating plate 41. Based on the measurement value of the dual laser ranging mechanism 52, the bucket elevator 38 and the vibrating screen 39 are automatically controlled to convey the paper pad 35 into the vibrating plate 41.

[0064] A vibration time controller was also added to the control system. After the vibrating screen hopper 44 is full, the discharge baffle is automatically raised to a certain height after a period of time. The paper pads 35 are automatically fed through the rectangular discharge port at the bottom of the discharge side plate 49 onto the vibrating screen plate 46 between a pair of direct feed baffles 50. The direct feed baffles 50 disperse the paper pads 35 in a single layer on the vibrating screen plate 46, and the vibration of the vibrating screen plate 46 causes the dust adhering to the paper pads 35 to fall into the waste hopper 53, thus deeply purifying the paper pads 35. Then, the paper pads 35 fall into the vibrating plate 41 through the discharge chute 51. Different vibration times and discharge baffle lifting heights are set for paper pads 35 of different sizes and dust contents. The purification and dust removal effect of the paper pads 35 is ensured by setting the time interval and feeding speed.

[0065] The vibrating screen 39 is a non-standard customized structure. The vibrating screen 39, in conjunction with the bucket elevator 38, delivers paper pads 35 to the vibrating platen 41. When the vibrating platen 41 sends a material request signal through the control system, the bucket elevator 38 lifts the paper pads 35 to begin feeding. When the vibrating screen 39 is full, the bucket elevator 38 stops feeding to prevent the paper pads 35 from overflowing from the side of the vibrating screen 39. The vibration time of the vibrating screen plate 46 is set in the control system, and the vibrating screen 39 feeds material to the vibrating platen 41 at regular intervals. The feeding process of the paper pads 35 continues until the vibrating platen 41 is full.

[0066] The vibrating screen 39 has the following characteristics: simple structure and low failure rate; it adopts a pneumatic turbine vibrator 56 with a silencer 55, which can effectively reduce noise to less than or equal to 75dB; the screen holes on the vibrating screen plate 46 do not affect the catching of the paper pads 35 falling from the bucket elevator 38, and can also collect impurities in the paper pads 35 into the waste hopper 53 through vibration; the photoelectric switch 48 installed on the vibrating screen 39 sends a full signal to the control system after detecting that the vibrating screen hopper 44 is full, and the control system controls the bucket elevator 38 to stop running; the vibrating screen hopper 44 After the hopper is full, the vibrating screen plate 46 vibrates for a certain period of time to screen out clean paper pad blocks 35 material; after the photoelectric switch 3 detects that there are no paper pad blocks 35 material at the bottom of the vibrating screen hopper 44, it sends a no-material signal to the control system, and the control system controls the bucket elevator 38 to run automatically to supply material, repeating the cycle; when the dual laser ranging mechanism 52 detects that the paper pad blocks 35 in the vibrating plate 41 have reached the upper limit of the material height, the vibrating screen 39 stops running; when the dual laser ranging mechanism 52 measures that there is no paper pad blocks 35 in the vibrating plate 41, the control system controls the vibrating screen 39 to run automatically.

[0067] Parameter table of negative pressure dust removal mechanism 40

[0068] name Specification Volume 30L power 2200W suction 24kPa power supply AC380V / 50Hz frame Non-standard, carbon steel powder coated Dust removal structure Dust barrier + HEPA filter

[0069] The negative pressure dust removal mechanism 40 has the following characteristics: it can be centrally controlled by the control system and can be linked with the vibrating screen 39. The negative pressure dust removal mechanism 40 only works during the vibrating feeding period of the vibrating screen 39, saving energy and reducing consumption; the dust filter and HEPA filter inside the negative pressure dust removal mechanism 40 are easy to disassemble and maintain, and can be washed with water; it has strong suction, is explosion-proof; automatically depressurizes; is waterproof and leak-proof; is easy to maintain; and is easy to clean.

[0070] The vibratory feeder 41 includes: a vibratory feeder vibration mechanism 57, a vibratory feeder base plate 58, a vibratory feeder cylinder wall 76, a material channel, and a deflector. The vibratory feeder base plate 58 is a circular structure with an upwardly extending convex plate along its edge. The diameter of the vibratory feeder base plate 58 is larger than the diameter of the vibratory feeder cylinder wall 76. One corner of the bottom of the vibratory feeder cylinder wall 76 is welded to the vibratory feeder base plate 58. The vibratory feeder cylinder wall 76 and the vibratory feeder base plate 58 together form the vibratory feeder hopper. A notch 77 is provided between the bottom of the vibratory feeder cylinder wall 76 and the vibratory feeder base plate 58. The vibratory feeder 41 is used to screen paper pads 35 and arrange the paper pads 35 in rows. The vibration speed of the vibratory feeder vibration mechanism 57 can be adjusted. The vibrating plate 58 is fixedly installed above the vibrating mechanism 57. An inclined spring plate is provided between the vibrating plate 58 and the vibrating mechanism 57. The vibrating plate 58 and the vibrating cylinder wall 76 are used to receive the paper pad blocks 35 material poured down from the vibrating screen 39. The height of the paper pad blocks 35 in the vibrating hopper is detected in real time by the dual laser ranging mechanism 52, and the total height of the paper pad blocks 35 is automatically controlled to be maintained within a certain range. The inner wall of the vibrating cylinder wall 76 is provided with a spiral upward vibrating hopper inner channel 59. The pulse electromagnet in the vibrating mechanism 57 is energized and de-energized under the action of current, causing the vibrating plate 58 to vibrate vertically up and down. Due to the inclination of the spring plate connected to the vibrating plate 58, the vibrating plate 58 will oscillate in one direction. The paper pad blocks 35 in the vibrating hopper will move forward and gradually rise along the inner channel 59 due to this vibration. During this process, the paper pad blocks 35 will continuously adjust their posture and spread out evenly. The width of the inner channel 59 of the vibratory feeder hopper is limited to only one paper pad block 35, so the paper pad block 35 can only be discharged in a row on the inner channel 59 of the vibratory feeder hopper.

[0071] The outer wall of the vibratory feeder cylinder 76 is provided with two spirally downward-facing outer material channels 60 and 61. The discharge port of the inner material channel 59 is connected to the inlet of the outer material channel 60 and the outer material channel 61, respectively. A material exchange baffle 62 is provided at the connection point. The discharge ports of the outer material channels 60 and 61 are connected to the vibratory feeder outlet channel 66. The outer wall of the vibratory feeder cylinder 76 is provided with dual material channels. The outer material channel 61 is suitable for paper pads 35 with the same length and width. The installation position of the material exchange baffle 62 can be adjusted by bolts as needed, so that one of the outer material channels 60 and 61 is closed and the other is open. A lever 63 is installed at the outlet of the inner channel 59 of the vibratory feeder hopper. By setting the height of lever 63, it can break up the paper pad blocks 35 vibrating out of the vibratory feeder base plate 58. Lever 64 is installed at the inlet of the outer channel 60 and the outer channel 61 of the vibratory feeder hopper, respectively. By setting the height of lever 64, it ensures that the paper pad blocks 35 are conveyed outward in a single layer. Lever 65 is installed at the outlet of the outer channel 60 and the outer channel 61 of the vibratory feeder hopper, respectively. By setting the height of lever 65, it pushes out the incorrectly oriented paper pad blocks 35 back into the vibratory feeder hopper, ensuring that the paper pad blocks 35 are 100% correctly oriented. Because the arc structure of the paper pad 35 has a small processing radius, especially when the length and width of the paper pad 35 are the same, relying solely on the specially designed levers 63 and 64 to adjust the direction of the paper pad 35 may still result in errors. Therefore, lever 65 is added near the vibratory feeder outlet channel 66. Lever 65 blocks the paper pad 35 with incorrect height and guides it back to the bottom of the vibratory feeder hopper using its arc, allowing it to vibrate again and participate in the screening once more. Only the paper pad 35 with the correct height can pass through.

[0072] The discharge end of the vibratory feeder outlet channel 66 is connected to the front end (feed end) of the vertical vibration conveying mechanism 43. The vertical vibration conveying mechanism 43 includes a vertical vibration strip plate 67, which is fixedly installed on the vertical vibration mechanism 70 in the middle. The cross-section of the vertical vibration strip plate 67 is L-shaped. A fixed baffle 68 is fixedly installed on the thicker side of the vertical vibration strip plate 67, and a push plate 69 is movably installed on the thinner side of the vertical vibration strip plate 67. The push plate 69 and the fixed baffle 68 cooperate to form a slide for the paper pad 35 to move on the upper surface of the vertical vibration strip plate 67. The distance between the push plate 69 and the fixed baffle 68 can be adjusted to accommodate paper pads 35 of different widths. A material shortage detection mechanism 74 is fixedly installed at the front end of the outer side of the fixed baffle 68, and a full material detection mechanism 75 is fixedly installed at the rear end of the outer side of the fixed baffle 68. An L-shaped height adjustment plate 72 is provided above the feed end of the vertical vibrating strip plate 67. The distance between the horizontal plate of the height adjustment plate 72 and the vertical vibrating strip plate 67 can be adjusted to accommodate paper pads 35 of different thicknesses. At the same time, the height adjustment plate 72 can push the upper paper pads 35 into the slide on the vertical vibrating strip plate 67, so as not to form material accumulation. On both sides of the straight vibrating strip 67 near the height adjustment lever 72, there are a pusher cylinder 71 and a laser rangefinder 73 respectively. The straight vibrating strip 67 has a notch corresponding to the push rod of the pusher cylinder 71. The laser rangefinder 73 can identify the arc direction of the paper pad block 35 and whether there is material accumulation. The measured distance value of the laser rangefinder 73 should be approximately equal to the radius of the arc angle. If the measured distance value is close to zero, it means that there is no arc and that the paper pad block 35 is in the wrong direction. The push rod of the pusher cylinder 71 pushes the paper pad block 35 out. An inclined guide slide is set below this position, and the pushed paper pad block 35 falls back into the vibrating plate base 58. The full material detection mechanism 75 is linked with the laser rangefinder 2 73. When the full material detection mechanism 75 detects that there is material and the laser rangefinder 2 73 does not detect any data change (gap between pads) within a certain period of time, the material is full. The control system controls the vibratory feeder 41 to stop running. When the material shortage detection mechanism 74 and the laser rangefinder 2 73 do not detect the paper pad 35 within a certain period of time, the material is short. When the material is short, the control system controls the vibratory feeder 41 to automatically start feeding.

[0073] The vibratory feeder 41 and the direct vibration conveyor 43 work together. The vibratory feeder 41 is used to feed the paper pads 35, while the direct vibration conveyor 43 acts as a buffer zone and detects the paper pads 35. The direct vibration conveyor 43 also provides a stable and precise feeding position. Under the action of the vibratory feeder 41, the paper pads 35 slide out sequentially along the spiral chute, arranged in the length and width directions according to the drawing requirements. They are then conveyed by the direct vibration conveyor 43 to the area below the glue spraying mechanism. The glue spraying mechanism sprays glue onto the paper pads 1 arranged in the moving slide between the push plate 69 and the fixed baffle 68. The frame of the vibratory feeder 41 and the frame of the glue spraying mechanism are independent of each other to avoid the vibration of the vibratory feeder 41 negatively affecting the automatic glue spraying. A margin is left around the paper pads 1 because the glue will spread to the periphery during compression, and the vibration of the direct vibration conveyor 8 will not have a significant impact on the glue spraying.

[0074] The automatic paper pad feeding device of this invention has the following working process:

[0075] The paper pads 35 are conveyed to the vibrating screen 39 via the bucket elevator 38. The vibrating screen 39 filters out fine impurities, which are then collected by the negative pressure dust removal mechanism 40 under the combined action of gravity and negative pressure suction. The clean paper pads 35, now free of impurities, fall into the vibrating plate 41. The paper pads 35 are fed into the large hopper at the bottom of the bucket elevator 38 in a single batch. The PLC control system controls the simultaneous start and stop of multiple devices, and monitors the material level in the vibrating plate 41 in real time. When the material level reaches a low point, the bucket elevator 38 automatically starts, feeding the raw material into the vibrating screen 39. The system also automatically monitors the material condition in the vibrating screen 39 in real time. When the vibrating screen 39 is full, the bucket elevator 38 stops, and the vibrating screen 39 continues to vibrate for a certain period (the time can be set arbitrarily according to the cleanliness of the raw material) to ensure that material debris and dust have been cleared. After the negative pressure dust removal mechanism 40 cleans the paper pad 35, it is automatically placed into the vibrating plate 41. When the vibrating screen 39 automatically detects that there is no material, it starts the bucket elevator 38 to feed the material, and the paper pad 35 is cleaned and placed into the vibrating plate 41 in a cycle. When the vibrating plate 41 is full, the bucket elevator 38, vibrating screen 39 and negative pressure dust removal mechanism 40 stop feeding material after completing one cycle and all stop running. The control system controls each component to start and stop automatically as needed and controls the feeding rhythm to meet the feeding needs of the vibrating plate 41.

[0076] like Figure 21As shown, the automatic glue spraying device for paper pads includes: a glue spraying tank 89, a glue spraying valve 82, and a glue nozzle anti-clogging device. The glue spraying tank 89 is connected to a large-capacity glue storage tank via a sealed hose. The glue is sealed within the storage tank. The large-capacity storage tank connects to the glue spraying tank 89, avoiding frequent replenishment of glue during the spraying process. The storage tank is placed on a fixed workbench next to the automatic glue spraying device. The storage tank has a sealed stainless steel structure to reduce contact between the glue and air, preventing the glue from hardening over time. The storage tank is connected to an inflation pipeline via a sealed pipe. The inflation pipeline continuously injects dry air at a positive pressure into the storage tank. A precision pressure regulating valve is installed on the inflation pipeline to regulate the air pressure. The precision pressure regulating valve has a pressure regulating knob to adjust the glue supply pressure, ensuring the stability of the glue supply pressure.

[0077] The glue supply pressure of the storage tank is adjustable and equipped with a low-material alarm mechanism. The glue can be stored and used in the storage tank for extended periods. The fully enclosed, pressure-adjustable storage tank continuously supplies glue to the spray tank 89 at the spray valve 82. The spray tank 89 needs to move at high speed with the spraying device, so it is designed to be small and lightweight. Glue is automatically transported from the storage tank to the spray tank 89 via a sealed hose and air pressure. An electronic scale is installed at the bottom of the storage tank. The storage tank is placed on the scale, which is electrically connected to the control system. The control system sets alarm upper and lower limits for the weight of the glue in the storage tank, facilitating reminders to replenish the glue and preventing overfilling or underfilling. Simultaneously, the control system is electrically connected to a three-color audible and visual alarm light, installed on the upper part of the automatic spraying device bracket. This light automatically alarms when the storage tank is overfilled or underfilled, prompting manual intervention.

[0078] The automatic glue spraying device for paper pads is equipped with a device bracket. Servo motor 78, mounting plate 80, linear guide rail 91, and synchronous pulley cover 93 are fixedly mounted on the device bracket. The rotating shaft of servo motor 78 passes through synchronous pulley cover 93 and is rotatably connected to synchronous pulley cover 93 through bearing 1. Ball screw 92 is arranged parallel to the rotating shaft of servo motor 78. The rear end of ball screw 92 passes through synchronous pulley cover 93 and is rotatably connected to synchronous pulley cover 93 through bearing 2. The rotating shaft of servo motor 78 and the rear end of ball screw 92 are connected by a synchronous belt for rotational transmission. Servo motor 78 drives ball screw 92 to rotate. The front end of the ball screw 92 passes through the mounting plate 80 and is rotatably connected to the mounting plate 80 via bearing 3. The bottom end of the slider 79 is slidably connected to the linear guide rail 91. An internal threaded hole is opened at the center of the slider 79, and the ball screw 92 passes through the slider 79. The internal threaded hole of the slider 79 mates with the external thread of the ball screw 92. A connecting transition plate 90 is fixedly installed on the right side of the slider 79. A pneumatic slide table 81 is fixedly installed on the right side of the connecting transition plate 90. The glue spray valve 82 is fixedly installed on the sliding plate on the right side of the pneumatic slide table 81. The three-dimensional movement of the glue spray valve 82 is realized through the cooperation of the ball screw 92 and the pneumatic slide table 81. A pair of semi-circular elastic mounting clips are fixedly installed on the upper part of the right side of the glue spray valve 82. The upper part of the glue spray tank 89 is clamped in the mounting clips. The glue outlet of the glue spray tank 89 is located at the lower end, and the outer circumference of the glue outlet of the glue spray tank 89 is machined with pipe threads. The glue outlet of the glue spraying tank 89 is fastened to the component module of the glue spraying valve 82 by means of a nut through the pipe thread. The glue enters the glue spraying valve 82 from the glue outlet of the glue spraying tank 89 through the internal channel of the component module.

[0079] The glue spraying valve 82 is a piezoelectric dispensing valve, such as the S1000 piezoelectric jet valve. The glue spraying valve 82 can accurately spray (dispense) multiple paper pads 35 at one time through three-dimensional rapid movement.

[0080] A cylinder lifting mechanism 83 is also fixedly installed on the device bracket, located to the right rear of the glue spraying valve 82. The cylinder lifting mechanism 83 is equipped with the glue spraying nozzle anti-clogging device, which prevents the conical glue spraying nozzle of the glue spraying valve 82 from clogging during normal shutdown. The glue spraying nozzle anti-clogging device includes a waste glue box 86 and a sealing glue box 87, which are arranged side-by-side on the upper horizontal fixed plate 88. The sealing glue box 87 contains glue. The upper horizontal fixing plate 88 is fixedly connected to the middle vertical fixing plate 85 and the lower horizontal fixing plate 7 as a whole. The vertical fixing plate 85 is fixedly connected to the lifting cylinder of the cylinder lifting mechanism 83. The vertical vibration conveying mechanism 43 for conveying paper pads 35 is installed in the space formed by the lower horizontal fixing plate 84, the vertical fixing plate 85 and the upper horizontal fixing plate 88. After the glue spraying valve 82 automatically sprays glue onto the neatly arranged paper pads 35 on the vertical vibration conveying mechanism 43, the positioning and pushing mechanism pushes the paper pads 35 onto the heat-resistant rubber plate on the outer periphery of the electric turntable, with the side of the paper pads 35 sprayed with glue facing upwards.

[0081] The automatic adhesive spraying device for paper pads in this embodiment of the invention is also equipped with an ultrasonic cleaner. The ultrasonic cleaner is an existing product. Before statutory holidays or long-term shutdowns, the nozzle, striking pin, and sealing ring of the adhesive spraying valve 82 are disassembled for deep cleaning to ensure normal operation of the equipment after the holiday. The nozzle, striking pin, and sealing ring are parts that come into direct contact with the adhesive and are prone to adhesive curing.

[0082] The electric turntable in this embodiment of the invention is also provided with a hot air circulation mechanism, such as... Figure 22 As shown, the hot air circulation mechanism includes a heating fan 94 and a hot air duct 95. The heating fan 94 is placed on the ground, and the hot air duct 95 is located on the outside of the electric turntable. The hot air duct 95 can be covered with a stainless steel material. The shape and size of the hot air duct 95 match the outer circumference of the electric turntable. The air outlet of the heating fan 94 is connected to the hot air duct 95 via a flexible hose. Both the flexible hose and the hot air duct 95 are insulated to prevent heat loss and burns. The heating fan 94 can use a PID+SSR intelligent temperature controller. The heating fan 94 circulates heat to the hot air duct 95, accelerating the curing speed of the adhesive. The airflow and temperature of the heating fan 94 are adjustable and can be precisely controlled. It has dual temperature control and an over-temperature alarm, keeping the temperature below 90℃ to avoid risks such as over-temperature aging. The heating fan 94 is equipped with a filter purification device to prevent air impurities from contaminating the product.

[0083] The automatic glue spraying device for paper pads according to an embodiment of the present invention has the following working process:

[0084] Through process testing, for different paper pads 35, a glue spraying trajectory and glue quantity control module was set in the control system. After the paper pads 35 are pressed and bonded to the paper tape after glue spraying, it is ensured that the glue sprayed on the paper pads 35 will not overflow and form glue nodules. Glue nodules can cause partial discharge under high voltage, affecting the normal operation of the transformer. Through the control of the glue spraying trajectory and glue quantity control module, the control system automatically connects and reads the corresponding operating data according to the size specifications of the paper pads 35, accurately controls the glue application position and glue quantity, ensures that the glue does not leak or overflow, and precisely controls the minimum glue quantity required to ensure a firm bond between the paper pads 35 and the empty paper tape 6.

[0085] After the glue spraying operation is completed, the glue spraying valve 82 is automatically moved to the sealing box 87 of the glue nozzle anti-clogging device via the ball screw 92 and pneumatic slide 81. The sealing box 87 is then moved upward by the cylinder lifting mechanism 83, immersing the conical glue nozzle of the glue spraying valve 82 into the sealing box 87. The sealing box 87 seals the entire conical glue nozzle, preventing glue clogging caused by the conical glue nozzle coming into contact with air during short-term non-use. When glue spraying is required again, the glue nozzle anti-clogging device is moved downward by the cylinder lifting mechanism 83. The glue spraying valve 82 is then automatically moved to the waste glue box 86 of the glue nozzle anti-clogging device via the ball screw 92 and pneumatic slide 81. The control system controls the glue spraying valve 82 to automatically spray glue a few times. The sprayed glue is collected in the waste glue box 86. After cleaning and observing that the conical glue nozzle is spraying glue normally, the automatic glue spraying device for paper pads is restarted.

[0086] In the embodiments of the present invention, all technical features not described in detail are existing technologies or conventional technical means, and will not be repeated here.

[0087] Finally, it should be noted that the above embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit them. The scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention.

Claims

1. A fully automatic bonding system for coil oil channel pads, comprising an automatic paper pad feeding device, an automatic paper pad gluing device, and an empty paper tape release and clamping device, characterized in that, The automatic paper pad feeding device includes a bucket elevator, which comprises a lower storage hopper and an upper discharge hopper. The discharge hopper has a discharge port at its bottom opening. An upward-sloping belt conveyor is installed between the storage hopper and the discharge hopper. A vibrating screen is installed below the discharge port of the discharge hopper. A waste hopper is installed below the vibrating screen, and a vibrating disc is installed below the discharge port of the vibrating screen. The feed inlet of the direct vibration conveyor is connected to the vibrating disc. The bottom opening of the waste hopper is sealed and connected to a negative pressure dust removal mechanism. The empty paper tape release and pressing device includes an empty paper tape release mechanism, an empty paper tape tensioning mechanism, and several sets of empty paper tape pressing mechanisms mounted on the frame. The empty paper tape tensioning mechanism includes a release mechanism located at the empty paper tape release mechanism. The upper part of the feeding mechanism is arranged from top to bottom as a three-stage guide wheel, a two-stage guide wheel, and a first-stage guide wheel. The electromagnetic damping wheel is located outside the three-stage and two-stage guide wheels and is close to them. The fourth-stage and fifth-stage guide wheels are arranged horizontally and are higher than the third-stage guide wheel. An empty paper tape pressing mechanism is installed below the fifth-stage guide wheel. The empty paper tape pressing mechanism includes a servo motor and a pressure roller group. The pressure roller group is arranged in an arc shape. The pressure roller group is adjacent to the outer periphery of the counterclockwise rotating electric turntable and is concentric with the electric turntable. A heat-resistant rubber plate for accommodating paper pads is set on the outer periphery of the electric turntable. The discharge port of the direct vibration conveying mechanism corresponds to the glue spraying valve of the automatic glue spraying device for paper pads. The glued paper pads are placed on the heat-resistant rubber plate. The vibrating screen includes a square-shaped, open-top and bottom vibrating screen hopper and a rectangular vibrating screen plate. A photoelectric switch is installed on the upper part of the vibrating screen hopper, and a photoelectric switch is installed on the lower part of the vibrating screen hopper. Several screen holes are evenly distributed on the surface of the vibrating screen plate. A waste hopper is installed below the vibrating screen plate. The vibrating screen hopper is fixedly installed on the upper left side of the vibrating screen plate. A downwardly inclined discharge chute is installed on the right end of the vibrating screen plate. The side of the vibrating screen hopper near the discharge chute is a discharge side plate. A direct feed baffle is installed at the edge of the vibrating screen plate between the discharge side plate and the discharge chute. A rectangular discharge port is opened at the lower middle position of the discharge side plate. A discharge baffle that can move up and down is set at the rectangular discharge port. The vibrating screen hopper and the direct feed baffle are fixedly installed on the top of the support by connectors and bolts. An adjusting spring is set between the connectors and the top of the support. A pneumatic turbine vibrator is installed at the lower middle position of the vibrating screen plate. A solenoid valve and a silencer are installed on the pneumatic turbine vibrator. The discharge end of the vibratory feeder outlet channel is connected to the feed end of the direct vibration conveying mechanism. The direct vibration conveying mechanism includes a direct vibration strip plate, which is fixedly installed in the middle of the direct vibration mechanism. The cross-section of the direct vibration strip plate is L-shaped, and baffles and push plates are fixedly installed on both sides of the length direction of the direct vibration strip plate.

2. The fully automatic bonding system for coil oil passage gaskets according to claim 1, characterized in that, The vibratory feeder includes a vibratory feeder mechanism, a vibratory feeder base plate, and a vibratory feeder cylinder wall. The vibratory feeder base plate is a circular structure with upwardly extending convex plates along its edges. The diameter of the vibratory feeder base plate is larger than the diameter of the vibratory feeder cylinder wall. One corner of the bottom of the vibratory feeder cylinder wall is welded to the vibratory feeder base plate. A notch is formed at the bottom of the vibratory feeder cylinder wall. The vibratory feeder base plate is fixedly installed above the vibratory feeder mechanism. A spirally upward-facing inner material channel for the vibratory feeder hopper is provided on the inner wall of the vibratory feeder cylinder wall, and a spirally downward-facing outer material channel for the vibratory feeder hopper and the vibratory feeder hopper are provided on the outer wall of the vibratory feeder cylinder wall. The outer material channel 2 and the inner material channel outlet of the vibrating plate hopper are respectively connected to the inlets of the outer material channel 1 and the outer material channel 2 of the vibrating plate hopper. A material exchange channel baffle is set at the connection position. The outlets of the outer material channel 1 and the outer material channel 2 of the vibrating plate hopper are connected to the vibrating plate outlet material channel. A lever 1 is set at the outlet of the inner material channel of the vibrating plate hopper. A lever 2 is installed at the inlet of the outer material channel 1 and the outer material channel 2 of the vibrating plate hopper. A lever 3 is installed at the outlet of the outer material channel 1 and the outer material channel 2 of the vibrating plate hopper.

3. The fully automatic bonding system for coil oil passage gaskets according to claim 2, characterized in that, A material shortage detection mechanism is fixedly installed at the outer front end of the fixed baffle, and a full material detection mechanism is fixedly installed at the outer rear end of the fixed baffle. An L-shaped height adjustment plate is set above the feeding end of the straight vibrating strip plate. The distance between the horizontal plate of the height adjustment plate and the straight vibrating strip plate can be adjusted. A pusher cylinder and a laser rangefinder are respectively set on both sides of the straight vibrating strip plate near the height adjustment plate. A notch is set on the straight vibrating strip plate at the push rod of the pusher cylinder.

4. The fully automatic bonding system for coil oil passage gaskets according to claim 1, characterized in that, The pressure roller assembly includes a pressure roller assembly housing, a drive wheel, a transmission belt, and several driven wheels. The servo motor and the pressure roller assembly housing are mounted on a mounting frame. The drive wheel, transmission belt, and driven wheels are located inside the pressure roller assembly housing. The drive wheel and driven wheels are rotatably connected to both sides of the pressure roller assembly housing. The output shaft of the servo motor is connected to the drive wheel, and the drive wheel and driven wheels are connected by transmission belt.

5. The fully automatic bonding system for coil oil passage gaskets according to claim 4, characterized in that, The empty paper tape release mechanism includes a main shaft, which is a circular steel tube with a platform-shaped upper part. Both ends of the main shaft are mounted in bearing seats. A pair of bearing seats are symmetrically mounted on the middle crossbeam along the length of the mounting frame. Positioning bolt holes are machined at both ends of the main shaft platform, and several positioning holes are evenly distributed in the middle of the main shaft platform. The bearing seats include an upper seat and a lower seat with a locking structure. The upper surface of the lower seat has an arc-shaped step that matches the lower ends of the main shaft. Bolt through holes are machined on the upper horizontal panel of the upper seat, and positioning bolts are screwed into the positioning bolts at both ends of the main shaft through these through holes. In the bolt hole, several bushings corresponding to the positioning holes are fitted in the middle of the main shaft. The spring pin is inserted into the main shaft positioning hole on the left side of the bushing. The empty paper tape reel is rotated and fitted on the bushing. The bushing includes a bushing body. A glass fiber plate disc is integrally formed at the left end of the bushing body. The diameter of the glass fiber plate disc is larger than the diameter of the bushing body. A groove step is provided at the right end of the bushing body. Threads are machined on the groove step. A round nut is threaded and fitted on the right end of the bushing body. N layers of adjusting washers are provided on the left side of the round nut. N is zero or a positive integer.

6. The fully automatic bonding system for coil oil passage gaskets according to claim 5, characterized in that, A hot pressing mechanism and a photoelectric switch are arranged from top to bottom on the mounting base plate between the secondary guide wheel and the primary guide wheel. The hot pressing mechanism includes an upper hot pressing plate, a lower hot pressing plate and support plates on both sides. A clamping bolt is threaded on the upper hot pressing plate. The upper hot pressing plate and the lower hot pressing plate are constant temperature silicone rubber heating plates.

7. The fully automatic bonding system for coil oil passage gaskets according to any one of claims 1-6, characterized in that, The automatic glue spraying device for paper pads includes: a device bracket, a glue spraying tank, a glue spraying valve, and a glue nozzle anti-clogging device. A servo motor, a mounting plate, a linear guide rail, a ball screw, and a cylinder lifting mechanism are fixedly mounted on the device bracket. The servo motor's shaft is connected to the rear end of the ball screw via a synchronous belt drive. The front end of the ball screw passes through the mounting plate and is rotatably connected to the mounting plate via a bearing. The bottom end of the slider is slidably connected to the linear guide rail. An internal threaded hole is formed at the center of the slider, through which the ball screw passes. A connecting transition plate is fixedly mounted on the right side of the slider. A pneumatic slide is fixedly mounted on the right side of the connecting transition plate. The glue spraying valve is fixedly mounted on the sliding plate on the right side of the pneumatic slide. The glue spraying tank is fixedly mounted on... On the right side of the glue spray valve, the glue outlet of the glue spray tank is connected to the glue spray valve; the cylinder lifting mechanism is located behind the right side of the glue spray valve. The glue nozzle anti-clogging device includes a waste glue box and a sealing glue box, which are arranged side by side on the upper horizontal fixed plate. The sealing glue box contains glue. The upper horizontal fixed plate is fixedly connected to the middle vertical fixed plate and the lower horizontal fixed plate as a whole. The vertical fixed plate is fixedly connected to the lifting cylinder of the cylinder lifting mechanism. The synchronous pulley cover is fixedly installed on the device bracket. The servo motor shaft passes through the synchronous pulley cover and is rotatably connected to the synchronous pulley cover through bearing one. The ball screw is arranged parallel to the servo motor shaft. The rear end of the ball screw passes through the synchronous pulley cover and is rotatably connected to the synchronous pulley cover through bearing two.

8. The fully automatic bonding system for coil oil passage gaskets according to claim 7, characterized in that, A pair of semi-circular elastic mounting clips are fixedly installed on the upper right side of the glue spray valve. The upper part of the glue spray tank is clamped in the elastic mounting clips. The glue outlet of the glue spray tank is located at the lower end. The glue outlet of the glue spray tank has pipe threads machined on its outer circumference. The glue outlet of the glue spray tank is fastened to the component module of the glue spray valve with a nut.

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