CN119421332B

CN119421332B - Automatic glue removing device and method for circuit board production

Info

Publication number: CN119421332B
Application number: CN202510021620.1A
Authority: CN
Inventors: 任春花; 任卫焕; 任春杰
Original assignee: Circuit Tech Machinery Equipment Co ltd
Current assignee: Circuit Tech Machinery Equipment Co ltd
Priority date: 2025-01-07
Filing date: 2025-01-07
Publication date: 2025-05-23
Anticipated expiration: 2045-01-07
Also published as: CN119421332A

Abstract

The invention provides an automatic glue removing device and a glue removing method for circuit board production, which comprise a conveying assembly, the conveying assembly comprises a supporting frame, side plates, a sliding groove, a sliding block, a mounting hole and a chain. According to the invention, through careful design of the conveying assembly, the distance between the U-shaped frames is accurately adjusted by utilizing the synchronous electric cylinders to adapt to circuit boards with different widths, and the circuit boards are stably and automatically conveyed among glue removing processes by matching with the cooperative operation of the conveying motor, the driving wheel, the driven wheel and the chain, so that the glue removing efficiency is greatly improved, the large-scale production requirement is met, compared with the traditional manual or simple mechanical glue removing mode, the glue removing time of a single circuit board is greatly shortened, the overall productivity of a production line is improved, and the scattered sol and cleaning water in the glue removing process can be collected and filtered by arranging the liquid collecting hopper and the filtering frame above the sol storage tank and the water storage tank, thereby realizing the recycling of the sol and the water resource, and further reducing the consumption of raw materials and the production cost.

Description

Automatic glue removing device and method for circuit board production

Technical Field

The invention relates to the technical field of circuit board production, in particular to an automatic glue removing device and a glue removing method for circuit board production.

Background

In the modern circuit board production flow, a drilling process is one of the very critical links. When the drilling operation is completed, the glue residue is inevitably remained on the hole wall due to the influence of factors such as the drill bit used, the processing technology and the like. These residues have a certain tackiness and adhesiveness, and if they are not properly and thoroughly removed, they cause a serious problem. In the subsequent electroplating process, the existence of the adhesive slag can prevent the electroplating liquid from being uniformly adhered to the hole wall and the surface of the circuit board, so that the thickness of the electroplated layer is uneven, and the conductivity and the signal transmission quality of the circuit board are further affected. For chemical plating, the glue slag can interfere with the normal operation of chemical reaction, so that the plating formed by the chemical plating has defects, increased porosity and other adverse phenomena, and the corrosion resistance and reliability of the circuit board are greatly reduced. In the lamination process of the multilayer board, the adhesive residue can damage the close adhesion between the laminates to form gaps and bubbles, so that the interlayer binding force of the multilayer board is seriously weakened, faults such as layering and open circuit are easy to cause in the subsequent processing and using processes, the overall electrical performance and long-term reliability of the circuit board are affected very adversely, even destructively, the yield and the service life of the circuit board are greatly reduced, and the production cost and the after-sale risk are increased.

The traditional circuit board glue removing method is mostly dependent on manual operation or simple mechanical tools. Manual glue removal is low in efficiency, is difficult to meet the requirement of large-scale industrial production, and is difficult to ensure consistency and stability due to the difference of factors such as skill level, working state and fatigue degree of operators, and the glue removal effect is easy to cause unnecessary damage to a circuit board due to the condition of missed removal or excessive glue removal. The simple mechanical glue removing tool is single in function, and can only remove glue for circuit boards of specific types or sizes, so that the adaptability is poor, and the problems of large damage to the circuit boards, incomplete glue removal and the like exist in the glue removing process. In addition, the traditional glue removing mode lacks a recycling mechanism on the use of the sol agent, so that a large amount of sol agent is wasted, and the production cost is increased;

In the production process of circuit boards, in order to avoid adverse effects of colloid residues on the quality of the circuit boards, a colloid removal treatment is generally required. However, the current glue removing work is mostly finished manually, so that the operation is complicated, the efficiency is low, the thoroughness of glue removing is difficult to ensure, the uncertainty and the quality risk of circuit board production are increased, and therefore, the automatic glue removing device and the glue removing method for circuit board production are provided.

Disclosure of Invention

In view of the foregoing, the present invention is directed to an automatic glue removing device and a glue removing method for circuit board production, which solve or alleviate the technical problems in the prior art, and at least provide one of the beneficial options.

In order to solve the technical problems, the automatic glue removing device for circuit board production comprises a conveying assembly, wherein the conveying assembly comprises a supporting frame, a side plate, a sliding groove, a sliding block, a mounting hole, a synchronous electric cylinder, a limiting cylinder, a telescopic column, a U-shaped frame, a threaded hole, a threaded column, a clamping plate, a limiting sliding groove, a limiting sliding block, a screw rod, a screw hole, a motor bracket, a conveying motor, an output shaft, a driving wheel, a driven wheel and a chain;

The upper surface both sides of support frame all weld the curb plate, two the lateral plate one side middle part that is close to has all been seted up the sliding tray, two the inside wall of sliding tray all sliding connection has the sliding block, two the one side center department that is close to of sliding block all has seted up the mounting hole, two the inside wall of mounting hole all fixedly connected with synchronous electronic jar, two the outside that one side that is close to of sliding block is close to the mounting hole all fixedly connected with spacing section of thick bamboo, two the output of synchronous electronic jar all fixedly connected with telescopic column, the outside sliding connection of telescopic column is in the inside wall of spacing section of thick bamboo, two the one side that is close to of telescopic column all fixedly connected with U-shaped frame, two the screw hole has all been seted up at the one side center department that the upper surface of U-shaped frame is close to, the inside wall threaded connection of screw hole has the screw thread post, the utility model discloses a screw thread post, including screw thread post, limiting slide, screw, motor support's inside wall fixedly connected with conveying motor, conveying motor's output passes through output shaft fixedly connected with two drive wheels, two the equal fixedly connected with of lateral wall rear portion from the driving wheel of lateral wall rear portion of screw, two screw has all been run through on the rear surface upper portion of curb plate, the screw has been seted up at the rear surface center department of limiting slide, the lateral wall threaded connection of screw is in the inside wall of screw, two the upper surface rear portion fixedly connected with motor support of curb plate, the inside wall fixedly connected with conveying motor, the output of conveying motor passes through output shaft fixedly connected with two drive wheels, two the lateral wall of drive wheel rotates through the chain respectively and is connected with the lateral wall of two from the driving wheels.

Further preferably, the upper parts and the lower parts of the two sides of the side plates, which are close to each other, are close to the front part of the motor bracket, are fixedly connected with sol spray heads through a first mounting frame, the rear part of the inner bottom wall of the support frame is fixedly connected with a sol storage box, a sol conveying pump is installed at the bottom of one side of the sol storage box, the liquid outlet ends of the sol conveying pump are communicated with two conveying branch pipes through connecting pipes, and the liquid outlet ends of the two conveying branch pipes are respectively communicated with the liquid inlet ends of the two sol spray heads.

Further preferably, the two the front portions of the upper portion and the lower portion of one side that are close to of the side plate are close to the first mounting frame are fixedly connected with the backup pad, the two limiting grooves are all formed in the middle portion of one side that is close to of the backup pad, the two limiting sliding plates are connected with the inner side walls of the limiting grooves in a sliding mode, the two mounting grooves are formed in the middle portion of one side that is close to the limiting sliding plates, the inner side walls of the mounting grooves are fixedly connected with scrapers through a plurality of screws, the two electric cylinders are fixedly connected with the middle portion of one side, which is far away from the backup pad, of the electric cylinders, the output ends of the electric cylinders are fixedly connected with the center of the upper surface of the limiting sliding plates, the liquid collecting hopper is fixedly connected with the upper surface of the sol storage box and the water storage box, the bottom of the liquid collecting hopper is communicated with the filter frame, and the filter element is mounted on the inner side walls of the filter frame.

Further preferably, the two parts of the upper part and the lower part of the side plates, which are close to each other, are close to the front part of the supporting plate and are fixedly connected with water spraying heads through a second mounting frame, the front part of the inner bottom wall of the supporting frame is fixedly connected with a water storage tank, a water pump is installed at the bottom of one side of the water storage tank, the liquid outlet end of the water pump is communicated with two water delivery branch pipes through a water delivery pipe, and the water outlet ends of the two water delivery branch pipes are respectively communicated with the water inlet ends of the two water spraying heads.

Further preferably, the upper part and the lower part of one side of the side plates, which are close to each other, are close to the front part of the second mounting frame, and are fixedly connected with air blowing heads through a third mounting frame, the inner bottom wall of the support frame is close to the front part of the water storage tank, a fan heater is fixedly connected with the air outlet end of the fan heater, two hot air branch pipes are communicated through a hot air main pipe, and the air outlet ends of the two hot air branch pipes are respectively communicated with the air inlet ends of the two air blowing heads.

Further preferably, the front part and the rear part of one side of the upper surface of the U-shaped frame, which is close to the threaded hole, are provided with limiting sliding holes, the front part and the rear part of the upper surface of the clamping plate are fixedly connected with limiting sliding columns, the outer side walls of the limiting sliding columns are slidably connected to the inner side walls of the limiting sliding holes, the inner bottom wall of the U-shaped frame and the lower surface of the clamping plate are fixedly connected with protection pads, and the top of the threaded columns is fixedly connected with a knob.

The automatic glue removing device for the circuit board production comprises a glue removing assembly, wherein the glue removing assembly comprises a bracket, a first motor, a bidirectional screw rod, a guide rod, a clamping plate, a linear guide rail, a second motor, a sliding block, an electric telescopic rod, a driving box, a third motor, a driving wheel, a driving belt and a hairbrush;

The device comprises a bracket, a driving box, a glue removing assembly, a glue separating pipe, a glue removing pipe, a glue spraying nozzle, a glue spraying agent, a glue removing assembly and a glue spraying nozzle, wherein a first motor is arranged on the front surface of the bracket, an output shaft of the first motor is fixedly connected with one end of a bidirectional screw rod, two clamping plates are symmetrically and threadedly connected to the outer side wall of the bidirectional screw rod, a guide rod is symmetrically and fixedly connected to the inner side wall of the bracket, a linear guide rail is arranged on the inner side wall of the bracket, a second motor is arranged at one end of the linear guide rail, a sliding block is slidingly connected to the bottom of the linear guide rail, an electric telescopic rod is arranged at the bottom of the sliding block, a driving box is fixedly connected to the bottom of the electric telescopic rod, a third motor is arranged at the top of the driving box, two driving wheels are symmetrically and automatically connected to the inner side wall of the driving box, an output shaft of the third motor is fixedly connected with one driving wheel, a driving belt is sleeved on the outer side wall of the driving wheel, a brush is fixedly connected to the bottom of the driving wheel, glue removing agent is sprayed through the atomizing nozzle, the linear guide rail is driven to work, and the sliding block is driven by the second motor, and the height of the electric telescopic rod is regulated, and meanwhile the third motor drives the brush to rotate to the surface of the circuit board;

one side fixedly connected with divides the liquid pipe of drive case, the atomizer is evenly installed to the bottom of dividing the liquid pipe.

It is further preferable that the clamping plate is slidably connected to an outer sidewall of the guide rod, and the brush is rotatably connected to a bottom of the driving case.

It is further preferable that a main body assembly is arranged outside the glue removing assembly, and the main body assembly comprises a bottom plate and a base;

The top of the bottom plate is fixedly connected with a base, the support is fixedly connected to the top of the base, and conveying wheels are uniformly arranged on the inner side wall of the base.

Further preferably, the bottom of the bottom plate is communicated with a liquid discharge pipe, and the bottom of the bottom plate is symmetrically and fixedly connected with supporting legs.

In order to solve the technical problem, the application adopts another technical scheme that the method for removing the adhesive of the automatic adhesive removing device for producing the circuit board comprises the following steps:

Step one, according to the width of the circuit board, controlling a synchronous electric cylinder to push a telescopic column to move, and adjusting the distance between two U-shaped frames to adapt to the width of the circuit board;

step two, placing the circuit board between the inner bottom wall of the U-shaped frame and the clamping plate, and rotating the knob to enable the threaded column to rotate in the threaded hole so as to drive the clamping plate to move downwards, and clamping and fixing the circuit board;

step three, after the circuit board is fixed, starting a conveying motor, wherein the conveying motor drives a driving wheel to rotate, and the driving wheel drives a driven wheel and a screw to rotate through a chain, so that a sliding block drives the circuit board to move forwards;

Step four, when the circuit board moves between two sol spray heads, the sol conveying pump conveys sol in the sol storage box to the sol spray heads through the connecting pipe and the conveying branch pipe, the sol spray heads uniformly spray sol to the upper surface and the lower surface of the circuit board, and glue residues on the circuit board are infiltrated and softened;

Step five, after the circuit board passes through the sol spraying area, starting an adjusting electric cylinder, and pushing a limiting slide plate to move by the adjusting electric cylinder to drive a scraper to be close to the surface of the circuit board, so that softened glue residues are scraped from the surface of the circuit board;

Step six, after the scraping is finished, starting a water pump, wherein the water pump conveys water in the water storage tank to a water spray head through a water pipe and a water conveying branch pipe, the water spray head sprays water flow to the circuit board, and residual sol and residual impurities of the scraping are washed away;

Step seven, after the circuit board is cleaned, starting a warm air blower, conveying hot air generated by the warm air blower to a blowing head through a hot air main pipe and a hot air branch pipe, blowing hot air to the circuit board by the blowing head, and drying the surface of the circuit board;

step eight, in the process of removing the colloid, the scattered sol and the cleaning water are respectively collected by a sol storage box and a liquid collecting hopper above the water storage box, the collected liquid flows into a filter frame, after being filtered by a filter core in the filter frame, the sol is recycled in the sol storage box, and the water is recycled in the water storage box.

By adopting the technical scheme, the embodiment of the invention has the following advantages:

According to the invention, through careful design of the conveying assembly, the distance between the U-shaped frames is accurately adjusted by using the synchronous electric cylinders to adapt to circuit boards with different widths, and the circuit boards are stably and automatically conveyed among glue removing processes by matching with the cooperative operation of the conveying motor, the driving wheel, the driven wheel and the chain, so that the glue removing efficiency is greatly improved, the large-scale production requirement is met, the glue removing time of a single circuit board is greatly shortened compared with the traditional manual or simple mechanical glue removing mode, and the overall productivity of a production line is improved;

According to the invention, the liquid collecting hopper and the filtering frame are arranged above the sol storage box and the water storage box, so that the scattered sol and cleaning water in the process of removing the sol can be collected and filtered, and the recycling of sol and water resources is realized, thereby reducing the consumption of raw materials and reducing the production cost;

According to the invention, the two-way screw rod is driven to rotate by the first motor, the circuit board is clamped by the clamping plate, the glue removing agent is sprayed by the atomizing nozzle, the sliding block is driven to move by the linear guide rail, and the hairbrush is driven to rotate by the third motor, so that the surface of the circuit board is cleaned, the glue removing operation is not required to be manually completed by a worker, the glue removing efficiency is improved, the glue removing is ensured to be thorough, and the quality risk of circuit board production is reduced.

The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become apparent by reference to the drawings and the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a view angle block diagram of the present invention;

FIG. 2 is a view of another view of the present invention;

FIG. 3 is a block diagram of a slider and conveyor motor of the present invention;

FIG. 4 is a block diagram of the synchronous electric cylinder and U-frame of the present invention;

FIG. 5 is a block diagram of the adjusting electric cylinder and doctor of the invention;

FIG. 6 is a block diagram of a blowing head and a warm air blower of the present invention;

fig. 7 is a schematic flow chart of a method for removing glue in an automatic glue removing device for circuit board production according to the present invention;

FIG. 8 is a block diagram of a fourth embodiment of the present invention;

FIG. 9 is a bottom view of a fourth embodiment of the present invention;

FIG. 10 is a block diagram of a photoresist remover according to a fourth embodiment of the present invention;

fig. 11 is a diagram showing the internal structure of a drive box according to a fourth embodiment of the present invention.

Reference numeral 1, a conveying assembly; 11, a supporting frame, 12, a side plate, 13, a sliding groove, 14, a sliding block, 15, a mounting hole, 16, a synchronous electric cylinder, 17, a limiting cylinder, 18, a telescopic column, 19, a U-shaped frame, 20, a threaded hole, 21, a threaded column, 22, a clamping plate, 23, a limiting sliding groove, 24, a limiting sliding block, 25, a screw, 26, a threaded hole, 27, a motor bracket, 28, a conveying motor, 29, an output shaft, 30, a driving wheel, 31, a driven wheel, 32, a chain, 33, a first mounting frame, 34, a sol spray nozzle, 35, a sol storage tank, 36, a sol conveying pump, 37, a connecting pipe, 38, a conveying branch pipe, 39, a supporting plate, 40, a limiting groove, 41, a limiting sliding plate, 42, a mounting groove, 43, a screw, 44, a scraper, 45, an adjusting electric cylinder, 46, a second mounting frame, 47, a water spray nozzle, 48, 49, a water pump, 50, a water conveying pipe, 51, a water branch pipe, 52, a third mounting frame, 53, a blowing head, 54, 55, a hot air main pipe, 56, a branch pipe, 57, a water storage tank, 58, a water collecting box, a filter, a fan, a filter holder, a filter plug, a 60, a filter pad, a filter box, a filter plug, a filter box, a filter plug, a 60;

100. the device comprises a main body assembly, 101, a bottom plate, 102, a base, 103, a conveying wheel, 104, a liquid discharge pipe, 105, a supporting leg, 220, a glue removing assembly, 221, a bracket, 222, a first motor, 223, a bidirectional screw rod, 224, a guide rod, 225, a clamping plate, 226, a linear guide rail, 227, a second motor, 228, a sliding block, 229, an electric telescopic rod, 210, a driving box, 211, a third motor, 212, a driving wheel, 213, a driving belt, 214, a hairbrush, 215, a liquid separation pipe, 216 and an atomizing nozzle.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

As shown in fig. 1 to 6, the embodiment of the invention provides an automatic glue removing device for circuit board production, which comprises a conveying assembly 1, wherein the conveying assembly 1 comprises a supporting frame 11, a side plate 12, a sliding groove 13, a sliding block 14, a mounting hole 15, a synchronous electric cylinder 16, a limiting cylinder 17, a telescopic column 18, a U-shaped frame 19, a threaded hole 20, a threaded column 21, a clamping plate 22, a limiting chute 23, a limiting slide block 24, a screw 25, a screw hole 26, a motor bracket 27, a conveying motor 28, an output shaft 29, a driving wheel 30, a driven wheel 31 and a chain 32;

The two sides of the upper surface of the supporting frame 11 are welded with side plates 12, sliding grooves 13 are respectively formed in the middle of one side, close to the two side plates 12, of the two side plates 13, sliding blocks 14 are respectively and slidably connected to the inner side walls of the two sliding grooves 13, mounting holes 15 are respectively formed in the centers of one sides, close to the two sliding blocks 14, of the two sliding blocks 15, synchronous electric cylinders 16 are respectively and fixedly connected to the inner side walls of the two sliding blocks 14, a limiting cylinder 17 is respectively and fixedly connected to the outer side, close to the mounting holes 15, of the two sliding blocks 14, telescopic columns 18 are respectively and fixedly connected to the inner side walls of the limiting cylinders 17, U-shaped frames 19 are respectively and fixedly connected to the outer sides of the telescopic columns 18, threaded holes 20 are respectively formed in the centers of the two sides, close to the upper surfaces of the two U-shaped frames 19, threaded columns 21 are respectively and fixedly connected to the inner side walls of the threaded holes 20, the bottom of the outer side wall of the threaded column 21 is rotationally connected with a clamping plate 22, the inner top walls of the two sliding grooves 13 are respectively provided with a limit sliding groove 23, the centers of the upper surfaces of the two sliding blocks 14 are respectively fixedly connected with a limit sliding block 24, the upper parts of the rear surfaces of the two side plates 12 are respectively penetrated with a screw rod 25, the centers of the rear surfaces of the limit sliding blocks 24 are respectively provided with a screw hole 26, the outer side walls of the screw rods 25 are in threaded connection with the inner side walls of the screw holes 26, the rear parts of the upper surfaces of the two side plates 12 are fixedly connected with a motor bracket 27, the inner side walls of the motor bracket 27 are fixedly connected with a conveying motor 28, the output end of the conveying motor 28 is fixedly connected with two driving wheels 30 through an output shaft 29, the rear parts of the outer side walls of the two screw rods 25 are respectively fixedly connected with driven wheels 31, the two driving wheels 30 fixedly connected through the output shafts 29 are driven to rotate by the conveying motor 28, so that the two driven wheels 31 connected through the chains 32 are driven to synchronously rotate, and the two screw rods 25 are driven to synchronously rotate, and as the outer side walls of the screw rods 25 are in threaded connection with the inner side walls of the screw holes 26 on the limiting sliding blocks 24, the two limiting sliding blocks 24 are driven to synchronously move in the two limiting sliding grooves 23 respectively, the two sliding blocks 14 are driven to synchronously move in the sliding grooves 13, the two U-shaped frames 19 are driven to synchronously move through the two sliding blocks 14, and the circuit boards which are clamped and fixed on the two U-shaped frames 19 are driven to move.

In the first embodiment, specifically, the upper parts of the two side plates 12 close to each other and the front parts of the lower parts close to the motor support 27 are fixedly connected with a sol spray nozzle 34 through a first mounting frame 33, the rear part of the inner bottom wall of the support frame 11 is fixedly connected with a sol storage box 35, a sol conveying pump 36 is mounted at the bottom of one side of the sol storage box 35, the liquid outlet ends of the sol conveying pump 36 are communicated with two conveying branch pipes 38 through connecting pipes 37, the liquid outlet ends of the two conveying branch pipes 38 are respectively communicated with the liquid inlet ends of the two sol spray nozzles 34, the sol in the sol storage box 35 is conveyed to the sol spray nozzle 34 through the connecting pipes 37 and the conveying branch pipes 38 by the sol conveying pump 36, so that the sol spray nozzle 34 sprays the sol uniformly to the upper surface and the lower surface of the circuit board, and the glue residues on the circuit board are fully infiltrated and softened by the sol.

In the first embodiment, specifically, the upper parts and the lower parts of the two side plates 12 close to each other are fixedly connected with the supporting plates 39 at the front parts of the two side plates 12 close to the first mounting frame 33, the middle parts of the two sides of the two supporting plates 39 close to each other are respectively provided with the limiting grooves 40, the inner side walls of the two limiting grooves 40 are respectively and slidably connected with the limiting sliding plates 41, the middle parts of the two sides of the two limiting sliding plates 41 close to each other are respectively provided with the mounting grooves 42, the inner side walls of the mounting grooves 42 are fixedly connected with the scrapers 44 through the bolts 43, the middle parts of the sides of the two supporting plates 39 far away from each other are respectively and fixedly connected with the adjusting electric cylinders 45, the output ends of the adjusting electric cylinders 45 are fixedly connected to the centers of the upper surfaces of the limiting sliding plates 41, and the scrapers 44 are conveniently removed through the disassembling bolts 43, so that the matched scrapers 44 can be conveniently replaced according to circuit boards with different widths.

In the first embodiment, specifically, the upper parts of the two sides of the two side plates 12, which are close to each other, and the front parts of the lower parts of the two side plates, which are close to the support plates 39, are fixedly connected with water spray heads 47 through second mounting frames 46, the front parts of the inner bottom walls of the support frames 11 are fixedly connected with water storage tanks 48, water pumps 49 are installed at the bottoms of one sides of the water storage tanks 48, the liquid outlet ends of the water pumps 49 are communicated with two water delivery branch pipes 51 through water delivery pipes 50, the water outlet ends of the two water delivery branch pipes 51 are respectively communicated with the water inlet ends of the two water spray heads 47, and water in the water storage tanks 48 is delivered to the water spray heads 47 through the water delivery pipes 50 and the water delivery branch pipes 51, so that the water spray heads 47 spray water to the upper surface and the lower surface of the circuit board, and residual sol and residual scraped rubber impurities on the surface of the circuit board are washed away.

In the first embodiment, specifically, the upper parts and the lower parts of the two side plates 12 close to each other are fixedly connected with blowing heads 53 through a third mounting frame 52, the front parts of the inner bottom walls of the supporting frames 11 close to the water storage tanks 48 are fixedly connected with warm air blowers 54, the air outlet ends of the warm air blowers 54 are communicated with two hot air branch pipes 56 through hot air main pipes 55, the air outlet ends of the two hot air branch pipes 56 are respectively communicated with the air inlet ends of the two blowing heads 53, and hot air generated by the warm air blowers 54 is conveyed to the blowing heads 53 through the hot air main pipes 55 and the hot air branch pipes 56, so that the warm air is blown to the upper surface and the lower surface of the circuit board, and the surface of the circuit board is quickly dried.

In the first embodiment, specifically, the front part and the rear part of one side, close to the threaded hole 20, of the upper surface of the U-shaped frame 19 are provided with limiting sliding holes 57, the front part and the rear part of the upper surface of the clamping plate 22 are fixedly connected with limiting sliding columns 58, the outer side walls of the limiting sliding columns 58 are slidably connected to the inner side walls of the limiting sliding holes 57, and the limiting sliding columns 58 slide in the limiting sliding holes 57 through the limiting sliding columns 58 on the clamping plate 22, so that the limiting sliding columns 58 are limited, and the stability of the up-and-down movement of the clamping plate 22 is further improved.

In the first embodiment, the inner bottom wall of the U-shaped frame 19 and the lower surface of the clamping plate 22 are fixedly connected with a protection pad 59, the protection pad 59 is made of soft and wear-resistant rubber, and the protection of the protection pad 59 on the circuit board is achieved, so that the surface of the circuit board is protected from being scratched.

In the first embodiment, specifically, the top of the threaded column 21 is fixedly connected with a knob 60, and an operator can conveniently rotate the threaded column 21 through the knob 60.

In the first embodiment, the upper surfaces of the sol storage tank 35 and the water storage tank 48 are fixedly connected with a liquid collecting hopper 61, the bottom of the liquid collecting hopper 61 is communicated with a filtering frame 62, a filter element 63 is arranged on the inner side wall of the filtering frame 62, the scattered sol and the cleaning water are respectively collected through the sol storage tank 35 and the liquid collecting hopper 61 above the water storage tank 48, and are filtered through the filter element 63 in the filtering frame 62, so that the sol is recycled in the sol storage tank 35, and the water is recycled in the water storage tank 48.

Example two

As shown in fig. 7, the embodiment of the invention provides a method for removing glue from an automatic glue removing device for circuit board production, which comprises the following steps:

Step one, according to the width of the circuit board, the synchronous electric cylinder 16 is controlled to push the telescopic column 18 to move, and the distance between the two U-shaped frames 19 is adjusted to adapt to the width of the circuit board;

Step two, placing the circuit board between the inner bottom wall of the U-shaped frame 19 and the clamping plate 22, and rotating the knob 60 to enable the threaded column 21 to rotate in the threaded hole 20 to drive the clamping plate 22 to move downwards so as to clamp and fix the circuit board;

Step three, after the circuit board is fixed, starting a conveying motor 28, and driving a driving wheel 30 to rotate by the conveying motor 28, wherein the driving wheel 30 drives a driven wheel 31 and a screw rod 25 to rotate through a chain 32, so that the sliding block 14 drives the circuit board to move forwards;

Step four, when the circuit board moves between the two sol spray heads 34, the sol conveying pump 36 conveys the sol in the sol storage box 35 to the sol spray heads 34 through the connecting pipe 37 and the conveying branch pipe 38, and the sol spray heads 34 uniformly spray the sol to the upper and lower surfaces of the circuit board, so that the glue residue on the circuit board is soaked and softened;

step five, after the circuit board passes through the sol spraying area, starting an adjusting electric cylinder 45, and adjusting the electric cylinder 45 to push a limiting slide plate 41 to move so as to drive a scraper 44 to be close to the surface of the circuit board, and scraping softened glue residues from the surface of the circuit board, wherein the size of the scraper 44 can be changed according to the width of the circuit board;

step six, after the scraping of the glue is completed, a water pump 49 is started, the water pump 49 conveys water in a water storage tank 48 to a water spray head 47 through a water conveying pipe 50 and a water conveying branch pipe 51, the water spray head 47 sprays water flow to the circuit board, and the sol agent remained on the surface of the circuit board and the impurities remained after the scraping of the glue are washed away;

Step seven, after the circuit board is cleaned, starting a warm air blower 54, conveying hot air generated by the warm air blower 54 to a blowing head 53 through a hot air main pipe 55 and a hot air branch pipe 56, blowing hot air to the circuit board by the blowing head 53, and drying the surface of the circuit board;

step eight, in the process of removing the colloid, the scattered sol and the cleaning water are respectively collected by the sol storage box 35 and the liquid collecting hopper 61 above the water storage tank 48, the collected liquid flows into the filter frame 62, the sol is recycled in the sol storage box 35 after being filtered by the filter core 63 in the filter frame 62, and the water is recycled in the water storage tank 48.

Example III

When a circuit board with the width of 20 cm is required to be subjected to glue removal, an operator firstly sends an instruction to the synchronous electric cylinder 16 through a controller according to the width of the circuit board, the synchronous electric cylinder 16 starts to work, the telescopic column 18 is pushed to move in the limiting cylinder 17 to drive the U-shaped frame 19 to move, at the moment, displacement sensor data arranged on the side plate 12 are observed, and when the distance between the two U-shaped frames 19 is adjusted to be slightly more than 20 cm, the synchronous electric cylinder 16 stops working;

Then, an operator places the circuit board on the inner bottom wall of the U-shaped frame 19, rotates the knob 60 at the top of the threaded column 21, rotates the threaded column 21 in the threaded hole 20, drives the clamping plate 22 to move downwards under the guidance of the limiting sliding column 58 and the limiting sliding hole 57, stops rotating the knob 60 after the clamping plate 22 contacts the circuit board and applies proper clamping force, and firmly clamps the circuit board between the U-shaped frame 19 and the clamping plate 22 at the moment, and protects the surface of the circuit board from being damaged by clamping by virtue of the protection pad 59;

starting a conveying motor 28, wherein the conveying motor 28 drives a driving wheel 30 on an output shaft 29 to rotate at a speed of 10 revolutions per minute, the driving wheel 30 drives a driven wheel 31 and a screw rod 25 to rotate through a chain 32, the screw rod 25 is in threaded fit with a screw hole 26 on the rear surface of a limit sliding block 24, and meanwhile, the limit sliding block 24 on the sliding block 14 slides in a limit sliding groove 23 on the inner top wall of the sliding groove 13, so that the sliding block 14 drives a circuit board to move forwards and stably at a speed of 5cm per minute;

when the circuit board moves between the two sol spray heads 34, a sol conveying pump 36 is started, the sol in a sol storage box 35 is conveyed to the sol spray heads 34 through a connecting pipe 37 and a conveying branch pipe 38 at a flow rate of 200 milliliters per minute, and the sol spray heads 34 uniformly spray the sol on the upper surface and the lower surface of the circuit board, so that the glue residues on the circuit board are fully infiltrated and softened by the sol;

After the circuit board passes through the sol spraying area, continuing to move forwards, when reaching the position of the scraper 44, starting an adjusting electric cylinder 45, and adjusting the electric cylinder 45 to push a limiting slide plate 41 to slide in a limiting groove 40 of a supporting plate 39 at a speed of 2 cm per second, driving the scraper 44 fixed in an installation groove 42 on the limiting slide plate 41 through a screw 43 to be close to the surface of the circuit board, wherein the contact pressure between the scraper 44 and the surface of the circuit board is adjusted to be 0.5 kg/cm, scraping softened glue residues from the surface of the circuit board, and monitoring the contact pressure between the scraper 44 and the circuit board in real time through a pressure sensor arranged near the scraper 44 in the glue scraping process, if deviation exists, and timely adjusting the working parameters of the adjusting electric cylinder 45;

After the scraping is finished, the circuit board continues to move to the lower part of the water spraying head 47, at the moment, the water pump 49 is started, the water in the water storage tank 48 is conveyed to the water spraying head 47 through the water conveying pipe 50 and the water conveying branch pipe 51 at the flow rate of 500 milliliters per minute, the water spraying head 47 sprays water flow to the circuit board, the sol agent remained on the surface of the circuit board and the impurities remained after the scraping are washed away, the water spraying mode of the water spraying head 47 adopts pulse water spraying, and the pulse frequency is 5 times per second, so that the cleaning effect is improved;

After the circuit board is cleaned, the circuit board is continuously moved forward to the lower part of the blowing head 53, the warm air blower 54 is started, the temperature of hot air generated by the warm air blower 54 is set to be 60 ℃, the hot air is conveyed to the blowing head 53 through the hot air main pipe 55 and the hot air branch pipe 56, the blowing head 53 blows hot air to the circuit board, so that the surface of the circuit board is quickly dried, at the moment, the wind speed and the temperature of the air are monitored in real time through a wind speed sensor and a temperature sensor which are arranged near the blowing head 53, and the circuit board is ensured to be dried under proper conditions;

In the whole glue removing process, scattered sol and cleaning water are respectively collected by the liquid collecting hopper 61 above the sol storage box 35 and the water storage box 48, collected liquid flows into the filter frame 62, after being filtered by the filter core 63 in the filter frame 62, the sol is recycled in the sol storage box 35, the water is recycled in the water storage box 48, the filtering effect of the filter core 63 is checked regularly, and when the filtering efficiency of the filter core 63 is reduced to a certain degree, the filter core 63 is replaced in time so as to ensure the effects of resource recycling.

In conclusion, the automatic glue removing device and the glue removing method for circuit board production can efficiently and stably remove glue from the circuit board, have good resource recovery and recycling functions, effectively improve the quality and efficiency of circuit board production, and reduce the production cost and environmental pollution.

Example IV

As shown in fig. 8-11, an embodiment of the present invention provides an automatic glue removing device for circuit board production, which comprises a glue removing assembly 220, wherein the glue removing assembly 220 comprises a bracket 221, a first motor 222, a bidirectional screw 223, a guide rod 224, a clamping plate 225, a linear guide rail 226, a second motor 227, a sliding block 228, an electric telescopic rod 229, a driving box 210, a third motor 211, a driving wheel 212, a driving belt 213 and a brush 214;

The front surface mounting of support 221 has first motor 222, the output shaft of first motor 222 and the one end fixed connection of two-way lead screw 223, the lateral wall symmetry threaded connection of two-way lead screw 223 has two splint 225, the inside wall symmetry fixedly connected with guide bar 224 of support 221, linear guide 226 is installed to the inside wall of support 221, the second motor 227 is installed to one end of linear guide 226, the bottom sliding connection of linear guide 226 has slider 228, electric telescopic rod 229 is installed to the bottom of slider 228, the bottom fixedly connected with drive box 210 of electric telescopic rod 229, the third motor 211 is installed at the top of drive box 210, the inside wall symmetry automatic connection of drive box 210 has two drive wheels 212, the output shaft and one of them drive wheel 212 fixed connection of third motor 211, the lateral wall cover of drive wheel 212 is equipped with the drive belt 213, the bottom fixedly connected with brush 214 of drive wheel 212, spray the adhesive through atomizer 216, work through second motor drive linear guide 226, drive slider 228 moves, utilize electric telescopic rod 229 to adjust the height of brush 214, the brush 214 rotates simultaneously, clean the surface of circuit board.

In this embodiment, the adhesive removing assembly 220 further includes a liquid separating tube 215 and an atomizer 216;

One side of the driving box 210 is fixedly connected with a liquid separating pipe 215, an atomizing nozzle 216 is uniformly arranged at the bottom of the liquid separating pipe 215, the top of the liquid separating pipe 215 is communicated with a liquid inlet pipe, the liquid inlet pipe is connected with a glue removing agent liquid supply system, and the glue removing agent is sprayed through the atomizing nozzle 216.

In this embodiment, a clamping plate 225 is slidably connected to the outer sidewall of the guide rod 224, and the first motor 222 drives the bi-directional screw 223 to rotate, so as to clamp the circuit board by using the clamping plate 225.

In this embodiment, in particular, the brush 214 is rotatably coupled to the bottom of the driving case 210, and the surface of the circuit board is cleaned by the rotation and movement of the brush 214.

In this embodiment, specifically, the main body assembly 100 is disposed outside the glue removing assembly 220, and the main body assembly 100 includes a bottom plate 101 and a base 102;

The top of bottom plate 101 fixedly connected with base 102, support 221 fixedly connected to the top of base 102, base 102 can prevent except that the glue overflows.

In this embodiment, specifically, the inner side wall of the base 102 is uniformly provided with the conveying wheels 103, the conveying wheels 103 are driven by a motor, and the driving mode of the conveying wheels 103 is the same as that of the circuit board conveying mechanism in the prior art, and will not be described herein.

In this embodiment, specifically, a drain pipe 104 is connected to the bottom of the bottom plate 101, and the surplus adhesive remover is discharged through the drain pipe 104.

In this embodiment, specifically, the bottom of the bottom plate 101 is symmetrically and fixedly connected with the supporting legs 105, and the supporting legs 105 play a role in stabilizing and supporting.

When the automatic glue removing device is in operation, a circuit board is conveyed through the conveying wheel 103, after the circuit board reaches a glue removing station, the two-way screw rod 223 is driven to rotate through the first motor 222, the circuit board is clamped by the clamping plate 225, glue removing agent is sprayed through the atomizing nozzle 216, the linear guide rail 226 is driven to work through the second motor 227, the sliding block 228 is driven to move, the electric telescopic rod 229 is utilized to adjust the height of the hairbrush 214, meanwhile, the third motor 211 drives the hairbrush 214 to rotate, the surface of the circuit board is cleaned, a worker does not need to manually finish glue removing operation, glue removing efficiency is improved, glue removing is thoroughly guaranteed, and the quality risk of circuit board production is reduced.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The automatic glue removing device for circuit board production is characterized by comprising a conveying assembly (1), wherein the conveying assembly (1) comprises a supporting frame (11), side plates (12), a sliding groove (13), a sliding block (14), a mounting hole (15), a synchronous electric cylinder (16), a limiting cylinder (17), a telescopic column (18), a U-shaped frame (19), a threaded hole (20), a threaded column (21), a clamping plate (22), a limiting sliding groove (23), a limiting sliding block (24), a screw (25), a threaded hole (26), a motor bracket (27), a conveying motor (28), an output shaft (29), a driving wheel (30), a driven wheel (31) and a chain (32);

The utility model discloses a sliding device, including support frame (11) and fixed connection, both sides of the upper surface of support frame (11) have all welded curb plate (12), two the sliding groove (13) have all been seted up at the side middle part that is close to of curb plate (12), two the inside wall of sliding groove (13) has all sliding connection to slide block (14), two mounting hole (15) have all been seted up in the side center department that is close to of slide block (14), two synchronous electronic jar (16) are all fixedly connected with to the inside wall of mounting hole (15), two the outside that is close to of slide block (14) all fixedly connected with spacing section of thick bamboo (17), two the output of synchronous electronic jar (16) all fixedly connected with telescopic column (18), the outside sliding connection of telescopic column (18) is in the inside wall of spacing section of thick bamboo (17), two the side that is close to of telescopic column (18) all fixedly connected with U-shaped frame (19), two screw hole (20) have all been seted up in the side center department that is close to the upper surface of installing hole (15), threaded hole (21) are close to side center department, two top wall (21) are connected with screw thread groove (24) are all seted up in the side wall (24), screw rods (25) are penetrated through the upper parts of the rear surfaces of the side plates (12), screw holes (26) are formed in the center of the rear surface of the limiting sliding block (24), the outer side walls of the screw rods (25) are connected to the inner side walls of the screw holes (26) in a threaded mode, the upper surfaces of the side plates (12) are fixedly connected with motor supports (27), conveying motors (28) are fixedly connected to the inner side walls of the motor supports (27), two driving wheels (30) are fixedly connected to the output ends of the conveying motors (28) through output shafts (29), driven wheels (31) are fixedly connected to the rear parts of the outer side walls of the screw rods (25), and the outer side walls of the driving wheels (30) are respectively connected with the outer side walls of the two driven wheels (31) in a rotating mode through chains (32).

2. The automatic glue removing device for circuit board production according to claim 1, wherein the upper parts of the two sides of the side plates (12) which are close to each other and the front parts of the motor brackets (27) which are close to each other are fixedly connected with a sol spray head (34) through a first mounting frame (33), the rear parts of the inner bottom walls of the supporting frames (11) are fixedly connected with a sol storage box (35), a sol conveying pump (36) is arranged at the bottom of one side of the sol storage box (35), the liquid outlet ends of the sol conveying pump (36) are communicated with two conveying branch pipes (38) through connecting pipes (37), the liquid outlet ends of the two conveying branch pipes (38) are respectively communicated with the liquid inlet ends of the two sol spray heads (34), the upper parts and the lower parts of the two sides of the side plates (12) which are close to each other are fixedly connected with a supporting plate (39), the middle parts of the sides of the two supporting plates (39) which are close to each other are respectively provided with a limiting groove (40), the middle parts of the two side walls (40) which are close to each other are connected with a plurality of sliding plates (41) are respectively provided with a limiting screw (42), the middle parts of the two side plates (41) which are connected with a plurality of limiting screws (41), the middle parts of the two sides of the supporting plates (39) which are far away from each other are fixedly connected with an adjusting electric cylinder (45), and the output end of the adjusting electric cylinder (45) is fixedly connected to the center of the upper surface of the limiting slide plate (41).

3. The automatic glue removing device for circuit board production according to claim 2, wherein the upper parts of one side, close to each other, of the two side plates (12) and the front parts, close to the supporting plates (39), of the lower parts are fixedly connected with water spray hoppers (47) through second mounting frames (46), water storage tanks (48) are fixedly connected to the front parts of inner bottom walls of the supporting frames (11), water pumps (49) are mounted at the bottoms of one sides of the water storage tanks (48), liquid outlet ends of the water pumps (49) are communicated with two water delivery branch pipes (51) through water delivery pipes (50), water outlet ends of the two water delivery branch pipes (51) are respectively communicated with water inlet ends of the two water spray heads (47), liquid collecting hoppers (61) are fixedly connected to the upper surfaces of the sol storage boxes (35) and the water storage tanks (48), filter frames (62) are communicated with the bottoms of the liquid collecting hoppers (61), and filter cores (63) are mounted on the inner side walls of the filter frames (62).

4. The automatic glue removing device for circuit board production according to claim 3, wherein the upper parts of the two sides of the side plates (12) which are close to each other and the front parts of the lower parts of the two sides of the side plates which are close to the second mounting frame (46) are fixedly connected with blowing heads (53) through third mounting frames (52), the front parts of the inner bottom walls of the supporting frames (11) which are close to the water storage tanks (48) are fixedly connected with warm air machines (54), the air outlet ends of the warm air machines (54) are communicated with two hot air branch pipes (56) through hot air main pipes (55), and the air outlet ends of the two hot air branch pipes (56) are respectively communicated with the air inlet ends of the two blowing heads (53).

5. The automatic glue removing device for circuit board production according to claim 4, wherein limiting sliding holes (57) are formed in the front portion and the rear portion of one side, close to the threaded holes (20), of the upper surface of the U-shaped frame (19), limiting sliding columns (58) are fixedly connected to the front portion and the rear portion of the upper surface of the clamping plate (22), the outer side walls of the limiting sliding columns (58) are slidably connected to the inner side walls of the limiting sliding holes (57), protection pads (59) are fixedly connected to the inner bottom wall of the U-shaped frame (19) and the lower surface of the clamping plate (22), and knobs (60) are fixedly connected to the tops of the threaded columns (21).

6. The method for removing the adhesive from the automatic adhesive removing device for circuit board production, which is applied to the automatic adhesive removing device for circuit board production as claimed in claim 5, is characterized by comprising the following steps:

Step one, according to the width of the circuit board, controlling a synchronous electric cylinder (16) to push a telescopic column (18) to move, and adjusting the distance between two U-shaped frames (19) to adapt to the width of the circuit board;

Step two, placing the circuit board between the inner bottom wall of the U-shaped frame (19) and the clamping plate (22), and rotating the knob (60) to enable the threaded column (21) to rotate in the threaded hole (20) so as to drive the clamping plate (22) to move downwards and clamp and fix the circuit board;

Step three, after the circuit board is fixed, starting a conveying motor (28), wherein the conveying motor (28) drives a driving wheel (30) to rotate, and the driving wheel (30) drives a driven wheel (31) and a screw rod (25) to rotate through a chain (32), so that a sliding block (14) drives the circuit board to move forwards;

Step four, when the circuit board moves between two sol spray heads (34), a sol conveying pump (36) conveys sol in a sol storage tank (35) to the sol spray heads (34) through a connecting pipe (37) and a conveying branch pipe (38), and the sol spray heads (34) uniformly spray the sol to the upper surface and the lower surface of the circuit board, so that glue residues on the circuit board are infiltrated and softened;

Step five, after the circuit board passes through the sol spraying area, an adjusting electric cylinder (45) is started, the adjusting electric cylinder (45) pushes a limiting slide plate (41) to move, a scraper (44) is driven to be close to the surface of the circuit board, and softened glue residues are scraped from the surface of the circuit board;

Step six, after the scraping is finished, a water pump (49) is started, the water pump (49) conveys water in a water storage tank (48) to a water spraying head (47) through a water pipe (50) and a water conveying branch pipe (51), the water spraying head (47) sprays water flow to the circuit board, and sol agent and impurities remained on the surface of the circuit board are washed away;

Step seven, after the circuit board is cleaned, starting a warm air blower (54), conveying hot air generated by the warm air blower (54) to a blowing head (53) through a hot air main pipe (55) and a hot air branch pipe (56), blowing hot air to the circuit board by the blowing head (53), and drying the surface of the circuit board;

Step eight, in the process of removing the colloid, the scattered sol and the cleaning water are respectively collected by a liquid collecting hopper (61) above a sol storage box (35) and a water storage box (48), the collected liquid flows into a filter frame (62), and after being filtered by a filter element (63) in the filter frame (62), the sol is recycled in the sol storage box (35), and the water is recycled in the water storage box (48).