Glue removing device for mirror plate of pressing machine

Abstract

The utility model discloses a glue cleaning device for a mirror plate of a pressing machine, which comprises a conveying mechanism, a conveying frame, a screw rod assembly arranged on the conveying frame and a heating positioning assembly in transmission connection with the screw rod assembly, the screw rod assembly comprises a screw rod, a moving block and a screw rod driving assembly, and the heating positioning assembly comprises a positioning jig arranged on the moving block. A heating wire is arranged at the bottom of the positioning jig, and the heating temperature of the heating wire is 60-80 DEG C; the glue removing mechanism is erected above the conveying frame through a gantry support and comprises a scraper knife, a lifting driving assembly used for driving the scraper knife to ascend and descend and an adjusting assembly used for adjusting the angle of the scraper knife. The mirror plate is heated so that cured resin glue remaining on the mirror plate can be in a softened state, the cured resin glue is automatically removed when the cured resin glue is conveyed by the conveying mechanism and passes through the scraper knife, the automation degree is high, the glue removing effect is good, and the efficiency is high; and the applicability and the universality of the glue cleaning device are improved by adjusting the height and the angle of the scraper knife.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board lamination, in particular to a voltage-closed machine mirror board glue-clearing device. Background Art

[0002] Multi-layer PCB boards are pressed together using a voltage press. The multi-layer PCB boards and Prepreg (semi-cured resin board) are stacked as required and placed between the hot plates of the closed vacuum chamber of the voltage press. Continuous rolled copper foil is used to stack the boards. Current is passed through both ends. Due to its resistance, the copper foil generates high temperature to melt the heated Prepreg. Then, the hydraulic system above is used to apply pressure to the hot plate to achieve the pressing effect.

[0003] During the lamination process, a mirror plate is placed between the laminates to form a circuit for insulation, and also provides a flat and clean surface. Among them, the mirror plate is mostly made of aluminum-magnesium alloy plate, and a thin insulating anode film is attached to its surface to achieve insulation. During the lamination process, part of the resin will remain on the mirror plate after being melted by heat. Therefore, in order to prevent the resin glue remaining on the mirror plate from forming pits and other defects on the laminate, the mirror plate needs to be cleaned after each lamination operation. Currently, the mirror plate is mostly cleaned manually using a spatula or special sandpaper, which is not only inefficient, but also due to the uneven strength of manual cleaning, the residual glue is not cleaned clean or the insulating film is damaged. Summary of the invention

[0004] In order to overcome the above defects, the utility model provides a voltage-closed machine mirror plate glue cleaning device, which heats the mirror plate to soften the solidified resin glue and removes it with a scraper. It has a high degree of automation and good glue cleaning effect and high efficiency.

[0005] The utility model adopts a technical solution to solve the technical problem: to provide a voltage-closed machine mirror plate glue cleaning device, comprising a conveying mechanism for positioning and conveying the mirror plate, and a glue cleaning mechanism arranged on the conveying path of the conveying mechanism;

[0006] The conveying mechanism includes a conveying frame, a screw assembly arranged on the conveying frame, and a heating positioning assembly drivingly connected to the screw assembly, the screw assembly includes a screw along the length direction of the conveying frame and rotatably connected to the conveying frame, a moving block threadedly connected to the screw, and a screw driving assembly for driving the screw to rotate, the heating positioning assembly includes a positioning fixture arranged on the moving block for placing the mirror plate, a heating wire is provided at the bottom of the positioning fixture, and the heating temperature of the heating wire is 60°C to 80°C;

[0007] The rubber cleaning mechanism is erected above the conveying frame through a gantry bracket, and comprises a scraper, a lifting drive assembly for driving the scraper to lift and lower, and an adjustment assembly for adjusting the angle of the scraper.

[0008] As a further improvement of the utility model, a slide groove adapted to the moving block is provided on the conveying frame along its length direction, and a plurality of supporting legs are provided at intervals on the lower side of the conveying frame;

[0009] The two sides of the moving block parallel to the moving direction are respectively provided with straps overlapped with the top ends of the groove walls on both sides of the sliding groove.

[0010] As a further improvement of the present invention, the screw drive assembly is mounted on one end of the conveyor frame through a servo connection, and includes a first servo motor, and the output shaft of the first servo motor is transmission-connected to the screw through a coupling.

[0011] As a further improvement of the utility model, the lifting drive assembly includes two vertically arranged guide rails, a lifting plate slidably mounted on the guide rails, and a second servo motor for driving the lifting plate to move up and down, and the adjustment assembly is arranged on the lifting plate;

[0012] The two guide rails are respectively arranged on the same side of the two vertical plates of the gantry bracket, and the second servo motor is hung on the top horizontal plate of the gantry bracket along the vertical direction; the output shaft of the second servo motor is connected with a rolling screw, and the lower end of the rolling screw is connected to the upper end of the lifting plate on the side away from the scraper through a flange bearing.

[0013] As a further improvement of the utility model, the adjustment assembly includes a rotating plate rotatably connected to the lifting plate, a scraper heating plate arranged on the rotating plate, and a limit plate arranged on the scraper heating plate;

[0014] The scraper is detachably arranged between the scraper heating plate and the limiting plate.

[0015] As a further improvement of the utility model, connecting platforms are respectively provided at both ends of the lifting plate in the horizontal direction facing the scraper side, and arc-shaped guide slots are provided on the connecting platforms. The two ends of the rotating plate are respectively movably connected to the connecting platforms by limiting pins passing through the arc-shaped guide slots.

[0016] As a further improvement of the utility model, pointers are rotatably connected to the relatively distant sides of the two connecting platforms, and a ruler for indicating an angle is provided beside the arc-shaped guide slot.

[0017] As a further improvement of the utility model, the heating temperature of the scraper heating plate is 60°C to 80°C.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. By heating the mirror plate to make the cured resin glue remaining thereon in a softened state, and automatically removing it when transported through the scraper by the conveying mechanism, the degree of automation is high, the glue cleaning effect is good, and the efficiency is high;

[0020] 2. By heating the scraper to avoid residual glue adhering to the scraper to achieve continuous glue cleaning, and at the same time avoid damaging the insulating anode film;

[0021] 3. By making the height and angle of the scraper adjustable, the applicability and versatility of the glue cleaning device are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] Figure 2 is a schematic structural diagram of the conveying mechanism of the present utility model;

[0024] Figure 3 is a schematic structural diagram of the glue cleaning mechanism of the present utility model.

[0025] Combined with the drawings, the following description is made:

[0026] 1. Conveying mechanism; 11. Conveying frame; 111. Slide groove; 112. Support leg; 12. Lead screw assembly; 121. Lead screw; 122. Moving block; 1221. Laying board; 123. Lead screw driving assembly; 1231. Servo connecting frame; 1232. First servo motor; 1233. Coupling; 13. Heating and positioning assembly; 131. Positioning fixture; 2. Glue cleaning mechanism; 21. Gantry bracket; 211. Vertical board; 212. Horizontal board; 22. Scraper; 23. Lifting driving assembly; 231. Guide rail; 232. Lifting board; 233. Second servo motor; 234. Rolling lead screw; 235. Flange bearing; 24. Adjusting assembly; 241. Rotating plate; 242. Scraper heating plate; 243. Limiting plate; 244. Connecting platform; 2441. Arc-shaped guiding slot hole; 245. Limiting pin; 246. Pointer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following combines the drawings to make a detailed description of a preferred embodiment of the present utility model.

[0028] Refer to Figures 1 to 3The present embodiment provides a device for cleaning the glue of a mirror plate of a voltage-closed machine, which is used to clean the resin remaining on the mirror plate, and includes a conveying mechanism 1 for positioning and conveying the mirror plate, and a cleaning mechanism 2 provided on the conveying path of the conveying mechanism 1. For the convenience of description, the conveying mechanism is defined to move forward and backward. Specifically, the mirror plate with residual resin is placed on the conveying mechanism 1, and the conveying mechanism 1 conveys the mirror plate on it backward on a horizontal plane. When the mirror plate on the conveying mechanism 1 passes under the cleaning mechanism 2, the scraper 22 on the cleaning mechanism 2 performs a cleaning operation on the upper surface of the mirror plate. In addition, by providing a heating positioning component 13 on the conveying mechanism 1, when the heating wire heats the positioning fixture 131 to 70°C, the resin glue on the mirror plate is kept in a softened state, so that the scraper 22 can remove the resin from the surface of the mirror plate.

[0029] See also Figure 2 The conveying mechanism 1 provided in this embodiment includes a conveying frame 11, a screw assembly 12 arranged on the conveying frame 11, and a heating positioning assembly 13 connected to the screw assembly 12. Of course, it is not limited to this structure, and the heating positioning assembly can also be conveyed by a conveying line.

[0030] The screw assembly 12 includes a screw 121 along the length direction of the conveying frame 11 and connected to the conveying frame 11 for rotation, a moving block 122 threadedly connected to the screw 121, and a screw driving assembly 123 for driving the screw 121 to rotate. The screw driving assembly 123 is arranged at one end of the conveying frame 11 through a servo connecting frame 1231, and includes a first servo motor 1232. The output shaft of the first servo motor 1232 is connected to the screw 121 through a coupling 1233. After the first servo motor 1232 capable of forward and reverse rotation is energized, it drives the screw 121 forward and reverse, so that the moving block 122 arranged on the screw moves forward and backward, and then drives the heating positioning assembly 13 to move forward and backward. The screw transmission method is convenient for controlling the moving speed of the heating positioning assembly 13 to ensure the reliability of residual glue removal.

[0031] The conveyor frame 11 is provided with a chute 111 adapted to the moving block 122 along its length direction, and a plurality of support legs 112 are arranged at intervals on the lower side of the conveyor frame 11; the moving block 122 is provided with a lap plate 1221 on both sides parallel to its moving direction, which is overlapped with the top surface of the groove wall on both sides of the chute 111, so as to ensure that the heating positioning assembly 13 moves stably in the horizontal direction. It can be understood that connecting blocks are respectively provided at the front and rear ends of the conveyor frame 11, and the two ends of the screw rod 121 are rotatably connected to the connecting blocks through bearings, and its rear end passes through the corresponding connecting block and is connected to the output shaft of the first servo motor 1232 through the coupling 1233, so as to ensure the stability of the rotation of the screw rod 121.

[0032] The heating and positioning assembly 13 includes a positioning fixture 131 provided on the moving block 122 for placing the mirror plate. A heating wire is provided at the bottom of the positioning fixture 131, and the heating temperature of the heating wire is 60°C to 80°C. The heating wire is arranged in a serpentine shape at the bottom of the positioning fixture 131 to ensure uniform heating. The method of heating the plate using the heating wire is a conventional technical means and will not be elaborated here. In addition, a positioning groove for placing the mirror plate is provided on the positioning fixture 131. Further, in order to improve the glue cleaning effect, a return spring can be provided between the positioning fixture 131 and the moving block 122 to achieve elastic contact between the mirror plate and the scraper blade.

[0033] Refer to Figure 3 , the glue cleaning mechanism 2 provided in this embodiment is erected above the conveying frame 11 through a gantry bracket 21, and includes a scraper blade 22, a lifting drive assembly 23 for driving the scraper blade 22 to lift and lower, and an adjustment assembly 24 for adjusting the angle of the scraper blade 22.

[0034] Among them, the lifting drive assembly 23 includes two vertically arranged guide rails 231, a lifting plate 232 slidably fitted on the guide rails 231, and a second servo motor 233 for driving the lifting plate 232 to move up and down. The adjustment assembly 24 is provided on the lifting plate 232;

[0035] The two guide rails 231 are respectively provided on the same side of the two vertical plates 211 of the gantry bracket 21, and the second servo motor 233 is hung on the top horizontal plate 212 of the gantry bracket 21 in the vertical direction; the output shaft of the second servo motor 233 is connected with a rolling lead screw 234, and the lower end of the rolling lead screw 234 is connected to the upper end of the side of the lifting plate 232 facing away from the scraper blade 22 through a flange bearing 235. The second servo motor 233 that can rotate forward and backward drives the rolling lead screw 234 to rotate forward and backward after being powered on, so that the flange bearing 235 drives the lifting plate 232 to move up and down stably, so that the scraper blade 22 approaches or moves away from the conveying mechanism 1.

[0036] The adjustment assembly 24 includes a rotating plate 241 rotatably connected to the lifting plate 232, a scraper heating plate 242 provided on the rotating plate 241, and a limiting plate 243 provided on the scraper heating plate 242; the scraper blade 22 is detachably provided between the scraper heating plate 242 and the limiting plate 243. The contact angle between the scraper blade 22 and the upper surface of the mirror plate is adjusted through the rotating plate 241 to reduce the contact area between the scraping surface of the scraper blade 2 and the mirror plate and reduce friction, so as to ensure effective glue cleaning without damaging the insulating film. At the same time, the scraper blade is heated to 70°C by setting the scraper heating plate, which further ensures that when scraping the residual glue, the glue will not remain on the blade surface of the scraper blade to ensure the continuity of the scraper blade glue cleaning. Then at this time, it is easy for those skilled in the art to think of setting a residual glue collection box (not shown in the figure) on the front side of the positioning fixture 131 to prevent the removed residual glue from falling on the conveying mechanism.

[0037] Both ends of the lifting plate 232 in the horizontal direction towards one side of the cutting blade 22 are respectively provided with connecting platforms 244. The connecting platforms 244 are provided with arc-shaped guiding slot holes 2441. Both ends of the rotating plate 241 are respectively movably connected with the connecting platforms 244 through limit pins 245 passing through the arc-shaped guiding slot holes 2441. On the relatively far sides of the two connecting platforms 244, pointers 246 are respectively rotatably connected. A scale for indicating the angle is provided beside the arc-shaped guiding slot holes 2441. That is, after loosening the limit pin 245 and adjusting the rotating plate 241 to an appropriate angle, the limit pin is locked to fix the rotating plate. During the adjustment process, the scales indicated by the pointers 246 at both ends are used to ensure that both ends of the rotating plate are on the same horizontal plane, thereby ensuring the horizontality of the cutting edge of the cutting blade 22.

[0038] To sum up, a voltage combining machine mirror plate glue cleaning device provided by the present utility model heats the mirror plate to make the cured resin glue remaining thereon in a softened state, and automatically removes it when transported through the cutting blade by the conveying mechanism. It has a high degree of automation, good glue cleaning effect and high efficiency. In addition, by heating the cutting blade, it is avoided that residual glue adheres to the cutting blade to realize the continuity of glue cleaning, and at the same time, the damage to the insulating anode film is also avoided. By the adjustable height and angle of the cutting blade, the applicability and versatility of the glue cleaning device are improved.

[0039] Many specific details are set forth in the above description to facilitate a full understanding of the present utility model. However, the above description is only a preferred embodiment of the present utility model, and the present utility model can be implemented in many other ways different from those described herein. Therefore, the present utility model is not limited by the specific implementations disclosed above. At the same time, any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present utility model. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A voltage-closed mirror plate glue removal device, characterized in that: It comprises a conveying mechanism (1) for positioning and conveying a mirror plate, and a glue cleaning mechanism (2) arranged on a conveying path of the conveying mechanism (1); The conveying mechanism (1) comprises a conveying frame (11), a screw assembly (12) arranged on the conveying frame (11), and a heating positioning assembly (13) drivingly connected to the screw assembly (12); the screw assembly (12) comprises a screw (121) extending along the length direction of the conveying frame (11) and rotatably connected to the conveying frame (11), a moving block (122) threadedly connected to the screw (121), and a screw driving assembly (123) for driving the screw (121) to rotate; the heating positioning assembly (13) comprises a positioning fixture (131) arranged on the moving block (122) for placing the mirror plate; a heating wire is provided at the bottom of the positioning fixture (131); the heating temperature of the heating wire is 60° C. to 80° C.; The rubber cleaning mechanism (2) is mounted above the conveying frame (11) via a gantry bracket (21), and comprises a scraper (22), a lifting drive assembly (23) for driving the scraper (22) to lift and lower, and an adjustment assembly (24) for adjusting the angle of the scraper (22).

2. The voltage-closed mirror plate glue-cleaning device according to claim 1, characterized in that: The conveying frame (11) is provided with a slide groove (111) adapted to the moving block (122) along its length direction, and a plurality of supporting legs (112) are arranged at intervals on the lower side of the conveying frame (11); The moving block (122) is provided with straps (1221) on both sides parallel to its moving direction, respectively, which are overlapped with the top ends of the groove walls on both sides of the sliding groove (111).

3. The voltage-closed mirror plate glue-cleaning device according to claim 2, characterized in that: The screw drive assembly (123) is arranged at one end of the conveying frame (11) through a servo connecting frame (1231), and comprises a first servo motor (1232), wherein the output shaft of the first servo motor (1232) is transmission-connected to the screw (121) through a coupling (1233).

4. The device for removing glue from mirror plate of voltage-closed machine according to claim 3, characterized in that: The lifting drive assembly (23) comprises two vertically arranged guide rails (231), a lifting plate (232) slidably mounted on the guide rails (231), and a second servo motor (233) for driving the lifting plate (232) to move up and down, and the adjustment assembly (24) is arranged on the lifting plate (232); The two guide rails (231) are respectively arranged on the same side of the two vertical plates (211) of the gantry bracket (21); the second servo motor (233) is hung on the top horizontal plate (212) of the gantry bracket (21) in the vertical direction; the output shaft of the second servo motor (233) is connected to a rolling screw (234); the lower end of the rolling screw (234) is connected to the upper end of the lifting plate (232) on the side away from the scraper (22) through a flange bearing (235).

5. The device for removing glue from mirror plate of voltage-closed machine according to claim 4, characterized in that: The adjustment assembly (24) comprises a rotating plate (241) rotatably connected to the lifting plate (232), a scraper heating plate (242) disposed on the rotating plate (241), and a limiting plate (243) disposed on the scraper heating plate (242); The scraper (22) is detachably arranged between the scraper heating plate (242) and the limiting plate (243).

6. The device for removing glue from mirror plate of voltage-closed machine according to claim 5, characterized in that: The two ends of the lifting plate (232) in the horizontal direction facing the scraper (22) are respectively provided with connecting platforms (244), and the connecting platforms (244) are provided with arc-shaped guide slots (2441). The two ends of the rotating plate (241) are respectively movably connected to the connecting platforms (244) through limiting pins (245) passing through the arc-shaped guide slots (2441).

7. The device for removing glue from mirror plate of voltage-closed machine according to claim 6, characterized in that: Pointers (246) are rotatably connected to the two connecting platforms (244) on the sides that are relatively far away from each other, and a scale for indicating an angle is provided on the side of the arc-shaped guide slot (2441).

8. The device for removing glue from mirror plate of voltage-closed machine according to claim 7, characterized in that: The heating temperature of the scraper heating plate (242) is 60°C to 80°C.

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