CN211110247U

CN211110247U - Automatic paper feeding mechanism and automatic PCB stacking and paper separating equipment

Info

Publication number: CN211110247U
Application number: CN201922162781.5U
Authority: CN
Inventors: 郭赛平; 付春华
Original assignee: Xindebao Technology Shenzhen Co ltd
Current assignee: Xindebao Technology Shenzhen Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-07-28
Anticipated expiration: 2029-12-05

Abstract

The utility model discloses an automatic paper feeding mechanism and automatic PCB stacking and separating equipment, wherein the automatic paper feeding mechanism comprises a conveying platform, a paper supply device, a paper cutting device, a paper suction platform and a paper feeding device which are arranged on a frame, the conveying platform is positioned between the paper supply device and the paper feeding device, and the paper cutting device are arranged above the conveying platform; the paper cutting device is used for cutting the paper into a plurality of strip-shaped paper; the paper cutting device is used for cutting the strip-shaped paper into a plurality of mutually independent paper sheets; the paper feeding device comprises a plurality of groups of sucker assemblies for respectively sucking a plurality of paper sheets, a paper separating assembly for driving the plurality of groups of sucker assemblies to be mutually separated, and a driving module for driving the paper separating assembly to reciprocate between the paper sucking platform and the stacking position of the PCB. The automatic paper feeding mechanism realizes full automation of paper cutting, paper separating and paper feeding processes, can feed and stack paper on a plurality of groups of PCB boards simultaneously, and greatly improves the paper adding and separating efficiency of the PCB boards.

Description

Automatic paper feeding mechanism and automatic PCB stacking and paper separating equipment

Technical Field

The utility model relates to an automatic equipment for packing technical field of PCB board, concretely relates to automatic change and go up paper mechanism and automatic folded sheet of PCB board and separate paper equipment.

Background

In the packaging process of the PCB, paper sheets with the same size and specification are required to be padded between two layers of PCBs for isolation. If the full-automatic packaging of the PCB needs to be realized, a corresponding paper cutting mechanism is designed to cut paper into preset sizes, then the PCB and the cut paper are sequentially stacked on a bearing mechanism by utilizing conveying mechanisms such as a mechanical arm and a sucking disc, and then the subsequent packaging process is carried out.

When the PCB board enters into the packing process, the quantity and the model specification of the PCB board require to make mistakes, therefore, the quantity of the PCB board needs to be checked, the model specification is checked, when a plurality of PCB boards are packed, the separation paper is required to be added between the two PCB boards, at present, most of manufacturers manually check the quantity, check the model and increase the separation paper, the number of workers in a PCB board packing workshop is very large, only counting is performed, two processes of checking the model have a plurality of people, a specially-assigned person adds the separation paper, the efficiency is very low, mistakes are easy to make mistakes, the problems of secondary pollution, board damage and the like can be caused to the PCB board, and the separation paper function is not realized in a mode of counting the common stacked boards, and the efficiency is not high.

The Chinese utility model patent with the publication number of CN109625491A is retrieved, and discloses a PCB board stacking point separation paper device, which comprises a PCB board feeding mechanism, a PCB board conveying line, a vision system, a robot system and a paper feeding mechanism; the PCB feeding mechanism conveys the PCB to a PCB conveying line, the vision system accurately identifies and positions the PCB on the PCB conveying line, and position information of the PCB is transmitted to the robot system; the robot system picks the PCB on the PCB conveying line and accurately places the PCB on a stacking position set by a program according to the position information of the PCB transmitted by the vision system; then the paper separating mechanism separates a corresponding stack of paper into one page, the paper is sucked by the paper feeding mechanism through the sucking disc and is quickly conveyed right above the position of the stacking plate through the linear module, then the vacuum is broken, so that the suction force disappears, the paper falls on the PCB, and the function of automatically adding separation paper is realized.

However, in the device for separating the number of stacked PCB boards, the paper needs to be cut in advance and then stacked at the paper stacking position, then the paper is separated by the paper separating mechanism, and then the paper is stacked on the PCB board by the paper feeding mechanism. The mode for realizing automatic paper partition has the following problems:

1. the cut paper needs to be manually stacked at a paper stacking position, so that full automation of paper cutting, paper separating and paper feeding cannot be realized;

2. in the process that the paper feeding mechanism sucks the paper through the sucking disc, a plurality of pieces of paper are easy to suck at one time, so that the paper is wasted, and the subsequent weighing and other packaging procedures are influenced;

3. the paper separating mechanism can only absorb one piece of separating paper once, the speed of adding the separating paper is low, the production efficiency of the whole PCB packaging production line can be seriously slowed, even if a double-station design is adopted, the paper folding speed is difficult to greatly improve, and the volume of equipment can be increased.

Therefore, an automatic paper feeding mechanism and an automatic PCB stacking and paper separating device which can realize automatic paper cutting and feeding and have high production speed need to be designed.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the technical problem that there is degree of automation low, production efficiency is low in the PCB fold paper equipment among the prior art to an automatic change and go up automatic lamination paper separation equipment of paper mechanism and PCB board is provided.

In order to solve the technical problem, the technical scheme of the utility model as follows:

an automatic paper feeding mechanism comprises a conveying platform, a paper feeding device, a paper cutting device, a paper suction platform and a paper feeding device, wherein the conveying platform is arranged on a rack;

the conveying platform is provided with a pair of paper feeding rollers which are matched with each other to clamp the paper and provide running power for the paper;

the paper feeding device comprises a paper feeding rotary drum which provides paper to be cut to the paper feeding end of the conveying platform;

the paper cutting device comprises a plurality of cutting assemblies for cutting the paper being conveyed on the conveying platform into a plurality of strip-shaped paper along the conveying direction of the paper;

the paper cutting device comprises a cutter assembly for cutting a plurality of strip-shaped paper sheets which are being conveyed into a plurality of paper sheets which are mutually independent along the direction vertical to the paper conveying direction;

the paper suction platform is arranged at the paper outlet end of the conveying platform and is used for receiving a plurality of paper sheets conveyed by the conveying platform;

the paper feeding device comprises a plurality of groups of sucker assemblies, a plurality of paper separating assemblies and a plurality of driving modules, wherein the sucker assemblies are arranged on the rack and used for respectively sucking a plurality of paper sheets arranged on the paper suction platform side by side, the sucker assemblies drive the plurality of groups of sucker assemblies to be separated from each other in the side-by-side direction of the paper sheets so as to increase the distance between the adjacent two paper sheets, and the sucker assemblies and the paper separating assemblies are arranged on the paper suction platform and are driven by the driving modules to reciprocate between the paper suction stations of the paper suction platform and the stacking positions of a plurality of PCB boards.

Further, the paper feeding device includes: the mounting plate is driven by the driving module to reciprocate between a paper suction station of the paper suction platform and the stacking position of the PCB boards; the vertical driving cylinder is arranged on the mounting plate and used for driving the sucker assembly and the paper separating assembly to do vertical reciprocating motion;

the paper separation assembly comprises: the paper scrap collecting device comprises a mounting frame, a guide rail, a plurality of driving motors, a plurality of synchronous belts, a plurality of horizontal sliding frames and a plurality of paper scraps conveying mechanism, wherein the mounting frame is connected to the telescopic end of a vertical driving cylinder and is driven by the vertical driving cylinder to do vertical lifting motion below a mounting plate; each horizontal sliding frame is connected with a plurality of sucker mounting frames for mounting the sucker assemblies.

Further, it is a plurality of the sucking disc mounting bracket all follows the length direction slidable mounting of horizontal carriage is in on the horizontal carriage, and the relative both sides interval staggered arrangement of horizontal carriage.

Further, be equipped with on the sucking disc mounting bracket along many the spout that the side by side direction of scraps of paper extends, sucking disc subassembly slidable mounting in on the spout.

Furthermore, the paper cutting device also comprises a first fixed frame of the rack, which is arranged above the conveying platform, and the first fixed frame is provided with a plurality of guide rods which are horizontally arranged along the direction vertical to the conveying direction of the paper; the slitting component comprises an edge, the axis direction of the guide rod is slidably mounted on the edge seat of the guide rod, and the first cutter is mounted on the edge seat and faces the conveying platform.

Furthermore, the paper cutting device also comprises a second fixed frame arranged above the conveying platform and a cutter driving structure for driving the cutter assembly to vertically move so that the cutter assembly is matched with the conveying platform to cut off the paper; the cutter component is a second cutter which is longitudinally slidably arranged on the second fixing frame and the cutting edge of which is transversely and horizontally arranged.

Further, inhale the paper platform including being used for bearing the weight of scraps of paper and upper surface intensive arrangement have the loading board of the hole of induced drafting, and connect be in loading board below and inside be equipped with the communicating base that induced drafts of the hole of induced drafting, the passageway intercommunication that induced drafts has the exhaust system that is used for with the gas in the passageway of induced drafting outwards takes out.

Furthermore, a shifting device for driving the paper suction platform to reciprocate between the paper feeding station and the paper suction station of the paper suction platform along the conveying direction of the paper is installed on the rack.

Further, install in the frame and be located two receipts paper groove of inhaling the relative both sides of paper station of paper platform, still slidable mounting is located in the frame inhale paper platform top, two do reciprocating motion between the receipts paper groove in order to clean inhale the cleaning device of paper platform top wastepaper.

On the other hand, the embodiment of the utility model provides an automatic fold board of PCB board separates paper equipment, including setting up PCB board transfer chain in the frame, be used for with the polylith PCB board that sets up side by side on the PCB board transfer chain carries the upper plate device of a plurality of stack board positions in step and as above automatic paper mechanism of going up, the last paper device of automatic paper mechanism of going up is used for cutting out and has been the many scraps of paper that set up side by side and part and carry directly over the stack paper position.

1. The utility model provides an automatic paper feeding mechanism, paper that the feed roller provided moves along paper direction of delivery on conveying platform under the drive power effect of a pair of feed roller, paper in transit is cut into a plurality of scraps of paper that arrange side by side after the slitting of paper cutting device and the cutting of paper cutting device in proper order on conveying platform, then a plurality of scraps of paper continue to move and are accepted by the paper suction platform, a plurality of groups of sucking disc components on the paper feeding device respectively absorb a plurality of corresponding scraps of paper, and separate each other along the direction side by side of a plurality of scraps of paper under the effect of paper separation component, finally sucking disc component and paper separation component move to the stacked position of a plurality of PCB boards by the paper suction station of paper suction platform under the effect of drive module, and make the piece of paper on sucking disc component correspond the stacked position of a PCB board respectively, then the vacuum is broken to the sucking disc component, the suction that the scraps of paper receive disappears, the paper sheet falls on the PCB at the position of the stacked boards; the automatic paper feeding mechanism not only realizes the full automation of paper cutting, paper separating and paper feeding processes, but also avoids the problems that a plurality of paper sheets are sucked at one time, so that the paper is wasted, the subsequent weighing is influenced and the like; in addition, the automatic paper feeding mechanism can feed and fold paper on two or more groups of PCB boards without increasing the volume of the equipment remarkably, and the paper feeding efficiency of the PCB boards is greatly improved.

2. The utility model provides an automatic paper feeding mechanism, vertical driving cylinder drive divides the paper subassembly and installs the sucking disc subassembly on dividing the paper subassembly and is vertical reciprocating motion, the mounting panel of drive module drive paper feeding device is reciprocating motion between the paper station of inhaling the paper platform and the folded plate position of a plurality of PCB boards, a plurality of driving motor monopolize respectively and drive corresponding horizontal sliding frame through synchronous belt drive's mode and do horizontal transverse motion at the guide rail, thereby can adjust the interval between a plurality of horizontal sliding frames, realized the regulation to the interval between a plurality of sucking disc subassemblies side by side; through the synergistic effect of the driving module, the vertical driving cylinder and the plurality of driving motors, a plurality of paper sheets sucked by the plurality of groups of sucker assemblies can be simultaneously conveyed to the corresponding stacking positions of the plurality of PCBs; it should be noted here that, because the stacking positions of a plurality of PCBs need to be separated by a corresponding partition positioning mechanism, and the partition positioning mechanism needs to occupy a certain space, after a paper piece obtained by direct cutting is absorbed by the sucker assembly, if the space between a plurality of sucker assemblies arranged side by side is not enlarged by the paper separating assembly, the paper pieces on the sucker assembly cannot be placed on the stacking positions of the PCBs one-to-one; if according to the pile board position of a plurality of PCB boards, correspond and cut a plurality of scraps of paper that arrange with the pile board position difference synteny of a plurality of PCB boards, then cut and must cut between a plurality of scraps of paper that obtain and produce a large amount of waste paper, cause the waste of paper, and under the certain circumstances of size in the pile board position of PCB board, this kind of mode is to the roller of form advancing, the device of cutting a sheet of paper, the size requirement grow of paper cutting device, therefore, this kind of last paper device that is provided with branch paper subassembly, under the condition of not increasing the roller of form advancing, the device of cutting a sheet of paper, paper cutting device equidimension, the efficiency of adding the paper that separates of PCB board has been improved greatly, the production of waste paper has.

3. The utility model provides an automatic paper mechanism of going up, a plurality of sucking disc mounting brackets and the sucking disc subassembly that corresponds are at the mode of horizontal carriage both sides staggered arrangement, can make the distribution range of a plurality of sucking disc subassemblies bigger, when utilizing a plurality of sucking disc subassemblies to adsorb a scraps of paper simultaneously, can improve the stability of scraps of paper along with sucking disc subassembly operation in-process.

4. The utility model provides an automatic paper mechanism, the mode of sucking disc subassembly slidable mounting spout on the sucking disc mounting bracket can adjust the interval between a plurality of sucking disc subassemblies that adsorb a scraps of paper simultaneously to the scraps of paper that adapts to different size and dimension snatchs the demand, and the practicality is stronger.

5. The utility model provides an automatic paper feeding mechanism cuts the blade holder slidable mounting of subassembly and the mode of the guide bar on first mount, can adjust the distance of two adjacent blade holders and first cutter, and then can cut the scraps of paper that obtain different size and dimension to adapt to the paper folding demand of different size and dimension PCB boards.

6. The utility model provides an automatic paper mechanism in, inhale the mode that the paper platform passes through exhaust system evacuation formation negative pressure in order to adsorb paper on it, can ensure that the paper is adsorbed at inhaling the paper platform steadily, avoid the paper phenomenon because of appearing waving too lightly.

7. The utility model provides an automatic paper mechanism in changing, the shifter can drive and inhale the paper platform and be reciprocating motion along paper direction of delivery between the last paper station of inhaling the paper platform and inhaling the paper station, and the shifter setting can realize that the paper cuts out paper, divides paper, the full automatization of last paper process between conveying platform and last paper device, improves the adding of PCB board and separates paper efficiency.

8. The utility model provides an automatic paper feeding mechanism inhales paper platform and goes up cleaning device's setting and can effectively in time sweep away the waste paper that inhales on the paper platform, avoids waste paper to the influence that adds the barrier paper.

9. The utility model provides an automatic fold board of PCB board separates paper equipment through the cooperation of PCB board transfer chain, upper plate device, upper paper device, can place the PCB board in proper order with separating the paper piece and fold the board position at the PCB board to realize multiunit PCB board and add the synchronous of separating paper and go on, improved adding of PCB board greatly and separated paper efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a top view of an automatic board stacking and paper separating apparatus for PCB boards in an embodiment of the present invention;

fig. 2 is a schematic view of an overall structure of a paper cutting portion of an automatic stacking and separating device for PCB boards according to an embodiment of the present invention;

FIG. 3 is a schematic view of the mounting structure of the conveying platform, the paper feeding device, the paper cutting device and the paper suction platform of the paper cutting portion on the frame according to the embodiment of the present invention;

fig. 4 is an exploded view of the paper suction platform according to the embodiment of the present invention;

fig. 5 is a schematic view of the overall structure of the stacking portion of the automatic PCB stacking and separating apparatus according to the embodiment of the present invention;

fig. 6 is a schematic view of a stacking position of the PCB boards in the stacking portion and an installation structure of the partition positioning mechanism on the frame according to the embodiment of the present invention;

FIG. 7 is a schematic structural view of a first side of a paper feeding device according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a second surface of the paper feeding device according to the embodiment of the present invention.

Description of reference numerals: 100. a frame; 200. a paper cutting part; 210. a conveying platform; 211. a paper feed roller; 220. a paper supply device; 221. a paper feed drum; 222. a tension roller; 223. a height adjustment assembly; 230. a paper cutting device; 231. a first fixing frame; 232. a guide bar; 233. a tool apron; 234. a first cutter; 240. a paper cutting device; 241. a second fixing frame; 242. a cutter assembly; 250. a paper suction platform; 251. a carrier plate; 252. an air suction base; 253. an air suction channel; 260. a displacement device; 270. a paper collecting groove; 280. a cleaning device; 300. a stacking portion; 310. a paper feeding device; 311. a sucker component; 312. a paper separating assembly; 3121. a mounting frame; 3122. a guide rail; 3123. a drive motor; 3124. a synchronous belt; 3125. a horizontal sliding rack; 3126. a suction cup mounting frame; 3127. a chute; 313. a driving module; 314. mounting a plate; 315. a vertical driving cylinder; 320. a PCB conveying line; 330. a plate loading device; 340. stacking positions of the PCB boards; 350. a partition positioning mechanism; 360. and a discharge conveyor belt.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

An automatic board stacking and paper separating apparatus for PCB boards as shown in fig. 1 includes a frame 100, and a stacking part 300 and a paper cutting part 200 sequentially mounted on the frame 100. The paper cutting portion 200 includes a conveying platform 210, a paper feeding device 220, a paper cutting device 230, a paper cutting device 240, and a paper suction platform 250 mounted on the frame 100, the conveying platform 210 is located between the paper feeding device 220 and the paper feeding device 310, and the paper cutting device 230 and the paper cutting device 240 are disposed above the conveying platform 210. The stacking portion 300 includes a PCB conveyor line 320 disposed on the rack 100, and a board loading device 330 for synchronously conveying a plurality of PCBs disposed side by side on the PCB conveyor line 320 to a stacking position of the plurality of PCBs; and a paper feeding device 310 for separating a plurality of paper pieces cut in a side-by-side arrangement and feeding the separated paper pieces to a position right above a stacking position of the PCB, wherein one end of the paper feeding device 310 extends above the paper cutting part 200 and reciprocates between above the paper suction platform 250 and the stacking position of the plurality of PCBs. The stacking portion 300 further includes an outfeed conveyor 360 disposed on the rack 100 for outputting the stacked PCB boards.

Through the cooperation of PCB board transfer chain 320, upper plate device 330, paper cutting device 230, cut paper device 240 and upper paper device 310, can with the PCB board with cut separate the scraps of paper and place in proper order on the pile board position of PCB board to through 360 outside transports of exit conveyor, realize that multiunit PCB board adds the synchronous clear paper that separates goes on, improved greatly PCB board add and separate paper efficiency.

As shown in fig. 2 and 3, in the present embodiment, the paper feeding device 220 includes a paper feed drum 221 that feeds the paper to be cut to the paper feed end of the conveying deck 210, and a tension roller 222 provided on the paper feed path for keeping the paper in a tensioned state into the conveying deck 210. Height adjusting assemblies 223 for adjusting the height of the tension roller 222 relative to the paper are arranged on two sides of the tension roller 222, and the height adjusting assemblies 223 specifically adopt a screw rod sliding block structure to adjust the height of the tension roller 222 so as to ensure that the paper is in a smooth tensioning state. The height adjustment assembly 223 is well known to those skilled in the art and will not be described in detail herein.

As shown in fig. 2 and 3, in the present embodiment, the conveying platform 210 is provided with a pair of paper feeding rollers 211 which cooperate to clamp the paper and provide the paper with operation power; one of the paper feeding rollers 211 is a driving paper feeding roller 211, the other one is a driven paper feeding roller 211, the paper is clamped in a gap between the driving paper feeding roller 211 and the driven paper feeding roller 211, and the driving paper feeding roller 211 is driven by a servo motor to rotate and drives the clamped paper to move along the conveying direction.

As shown in fig. 2 and 3, in the present embodiment, the paper cutting device 230 includes a plurality of slitting assemblies that slit the sheet being conveyed on the conveying platform 210 into a plurality of strip-shaped sheets in the conveying direction thereof, and a first holder 231 of the frame 100 mounted above the conveying platform 210. A plurality of guide rods 232 horizontally arranged along the direction perpendicular to the paper conveying direction are arranged on the first fixing frame 231; the slitting assembly includes a plurality of knife blocks 233 slidably mounted on the plurality of guide bars 232 in the axial direction of the guide bars 232, and a first cutter 234 mounted on the knife blocks 233 and having a blade disposed toward the conveying platform 210. The distance between two adjacent tool holders 233 and the first cutter 234 can be adjusted by the way that the tool holders 233 of the slitting assembly are slidably mounted on the guide rods 232 of the first fixing frame 231, so that paper sheets with different sizes can be cut to meet the paper stacking requirements of PCBs with different sizes.

In one embodiment of this embodiment, as shown in fig. 2 and 3, the number of the slitting assemblies is five, and the whole paper is slit into six strip-shaped paper sheets, wherein the four strip-shaped paper sheets in the middle are paper sheets required by the stacked paper, and the two strip-shaped paper sheets at the edges are waste paper produced by slitting. Specifically, the first cutter 234 is a hob or a blade fixedly mounted on the cutter holder 233, and the first cutter 234 is detachably mounted on the cutter holder 233 so as to replace the worn and broken first cutter 234. Preferably, a protective cover is also provided on the first holder 231 for covering the plurality of slitting assemblies.

As shown in fig. 2 and 3, in the present embodiment, the sheet cutting device 240 includes: a second fixing frame 241 installed above the conveying platform 210; a plurality of cutter assemblies 242 vertically slidably mounted on the second fixing frame 241 for cutting the paper being conveyed on the conveying platform 210 into a plurality of strip-shaped paper sheets along the conveying direction; the cutter driving structure drives the cutter assembly 242 to vertically move so that the cutter assembly 242 is matched with the conveying platform 210 to cut off the paper; the cutter assembly 242 is a second cutter which is longitudinally slidably mounted on the second fixing frame 241 and has a cutting edge horizontally arranged. The cutter driving structure can drive the second cutter to slide up and down along the two opposite side walls of the second fixing frame 241 in a servo motor and cam transmission mode, and can also directly drive the second cutter to vertically reciprocate by one or more cylinders arranged above the second fixing frame 241 so as to realize the function of cutting off paper. The second cutter can cut off a plurality of strip-shaped paper sheets into a plurality of paper sheets which are arranged side by side and are mutually independent.

As shown in fig. 4, in the present embodiment, the paper sucking platform 250 is disposed on the frame 100 at the paper outlet end of the conveying platform 210 and is used for receiving a plurality of paper sheets arranged side by side and conveyed by the conveying platform 210. Specifically, the paper suction platform 250 includes a bearing plate 251 used for bearing paper sheets and having air suction holes densely arranged on the upper surface, and an air suction base 252 connected below the bearing plate 251 and having an air suction channel 253 communicated with the air suction holes inside, wherein the air suction channel 253 is communicated with an air suction system used for pumping out air in the air suction channel 253. The paper sucking platform 250 can ensure that the paper is stably adsorbed on the paper sucking platform 250 by the way that the air draft system vacuumizes to form negative pressure to adsorb the paper thereon, thereby avoiding the phenomenon that the paper flutters due to too light weight.

As shown in fig. 2 and 3, in the present embodiment, the frame 100 is further provided with a shifting device 260 for driving the paper suction platform 250 to reciprocate between the paper feeding station and the paper suction station of the paper suction platform 250 along the conveying direction of the paper. The shifting device 260 can drive the paper suction platform 250 to reciprocate between the paper feeding station and the paper suction station of the paper suction platform 250 along the conveying direction of the paper, and the shifting device 260 is arranged between the conveying platform 210 and the paper feeding device 310, so that full automation of paper cutting, paper separating and paper feeding processes can be realized, and the paper adding and separating efficiency of the PCB is improved. Specifically, the shifting device 260 includes two truss beams fixed on the frame 100, a bottom plate installed on the truss beams, a servo motor fixed on the bottom plate, a screw rod driven by the servo motor to rotate, and a slider structure in threaded connection with the screw rod and fixedly connected with the air suction platform, and the shifting device 260 drives the air suction platform to reciprocate through the screw rod, so that the shifting device has the advantages of high control precision and high corresponding speed. The displacement device 260 is a design structure that can be conceived by a person skilled in the art according to the written description, and is not shown in detail in the drawings.

As shown in fig. 2 and 3, in the present embodiment, two paper collecting grooves 270 are installed on the frame 100 at opposite sides of the paper suction station of the paper suction platform 250, and a cleaning device 280 is slidably installed on the frame 100 and is located above the paper suction platform 250 and reciprocates between the two paper collecting grooves 270 to clean paper scraps above the paper suction platform 250. The arrangement of the cleaning device 280 can effectively sweep away the waste paper on the paper suction platform 250 in time, the influence of the waste paper on the added partition paper is avoided, the paper collection groove 270 can collect the waste paper, and the waste paper is convenient to collect and treat. Specifically, the cleaning device 280 includes a servo motor installed on a truss beam, a lead screw driven by the servo motor to rotate in the truss beam, a slider structure connected to the lead screw in a threaded manner and slidably connected to the truss beam, a connecting plate connected to the slider structure and extending above the paper suction platform 250, and a brush portion installed on the connecting plate and extending toward the paper suction platform 250 for sweeping waste paper above the paper suction platform 250.

As shown in fig. 1 and fig. 5 to 8, in the present embodiment, the paper feeding device 310 includes a plurality of sets of suction cup assemblies 311 mounted on the frame 100 for respectively sucking a plurality of paper sheets arranged side by side on the paper suction platform 250, a paper separation assembly 312 for driving the plurality of sets of suction cup assemblies 311 to be separated from each other along the side-by-side direction of the plurality of paper sheets to increase the distance between two adjacent paper sheets, and a driving module 313 for driving the plurality of sets of suction cup assemblies 311 and paper separation assembly 312 to reciprocate between the paper suction station of the paper suction platform 250 and the stacking position of the plurality of PCB boards; a mounting plate 314 driven by a driving module 313 to reciprocate between a paper suction station of the paper suction platform 250 and a stacking position of a plurality of PCB boards; and a vertical driving cylinder 315 mounted on the mounting plate 314 and used for driving the suction cup assembly 311 and the paper separation assembly 312 to do vertical reciprocating motion.

The paper supplied by the paper feeding roller 211 moves on the conveying platform 210 in the paper conveying direction under the driving force of the pair of paper feeding rollers 211, the paper being conveyed is cut into a plurality of paper pieces arranged side by side after sequentially passing through the slitting of the paper cutting device 230 and the cutting of the paper cutting device 240 on the conveying platform 210, then the paper sheets continue to move and are received by the paper suction platform 250, the plurality of sets of suction cup assemblies 311 on the paper feeding device 310 respectively suck the corresponding paper sheets, and are separated from each other along the parallel direction of a plurality of paper sheets under the action of the paper separating component 312, finally the suction cup component 311 and the paper separating component 312 move to the stacking position of a plurality of PCB boards from the paper suction station of the paper suction platform 250 under the action of the driving module 313, and the paper sheets on the suction cup component 311 respectively correspond to the stacking position of one PCB board, then the sucking disc component 311 breaks vacuum, the suction force on the paper sheet disappears, and the paper sheet falls on the PCB at the position of the stacked boards; the automatic paper feeding mechanism not only realizes full automation of paper cutting, paper separating and paper feeding processes, but also avoids the problems that paper is wasted and subsequent weighing is influenced due to the fact that the sucker assembly 311 can only suck one paper sheet at a time, and a plurality of paper sheets are sucked at one time; in addition, the automatic paper feeding mechanism can feed and fold paper on two or more groups of PCB boards without increasing the volume of the equipment remarkably, and the paper feeding efficiency of the PCB boards is greatly improved.

As shown in fig. 8, in particular, the paper separation assembly 312 includes: the paper scrap collecting device comprises a mounting frame 3121 connected to the telescopic end of a vertical driving cylinder 315 and driven by the vertical driving cylinder 315 to do vertical lifting motion below a mounting plate 314, a guide rail 3122 installed below the mounting frame 3121 and extending along the side-by-side direction of a plurality of paper scraps, a plurality of driving motors 3123 vertically installed on the mounting frame 3121, a plurality of synchronous belts 3124 respectively driven by the plurality of driving motors 3123 to do reciprocating motion, a plurality of horizontal sliding frames 3125 respectively connected with the plurality of synchronous belts 3124 in a transmission manner and slidably installed on the guide rail 3122, and the plurality of horizontal sliding frames 3125 are arranged along the side-by-side direction of the plurality of paper scraps; each horizontal sliding frame 3125 is connected with a plurality of sucker mounting frames 3126 for installing the sucker assembly 311.

The vertical driving cylinder 315 drives the paper separating assembly 312 and the sucker assemblies 311 arranged on the paper separating assembly 312 to do vertical reciprocating motion, the driving module 313 drives the mounting plate 314 of the paper feeding device 310 to do reciprocating motion between a paper sucking station of the paper sucking platform 250 and a stacking position of a plurality of PCB boards, a plurality of driving motors 3123 respectively monopolize the corresponding horizontal sliding frames 3125 to do horizontal transverse motion on the guide rail 3122 in a synchronous belt 3124 transmission mode, so that the distance between the horizontal sliding frames 3125 can be adjusted, and the adjustment of the distance between the side-by-side sucker assemblies 311 is realized; through the synergistic effect of the driving module 313, the vertical driving cylinder 315 and the plurality of driving motors 3123, a plurality of paper sheets sucked by the plurality of groups of sucker assemblies 311 can be simultaneously conveyed to the corresponding stacking positions of a plurality of PCB boards; it should be noted here that, because the stacking positions of a plurality of PCBs need to be separated by the corresponding partition positioning mechanism 350, and the partition positioning mechanism 350 itself needs to occupy a certain space, after the paper sheets obtained by direct cutting are absorbed by the suction cup assembly 311, if the space between the plurality of suction cup assemblies 311 arranged side by side is not enlarged by the paper separating assembly 312, the paper sheets on the suction cup assembly 311 cannot be placed on the stacking positions of the PCBs one-to-one; if a plurality of paper sheets arranged in the same line with the stacking positions of the plurality of PCBs are correspondingly cut according to the stacking positions of the plurality of PCBs, a large amount of waste paper is inevitably cut among the cut paper sheets, which causes waste of the paper, and in the case that the stacking positions of the PCBs have a certain size, the size requirements of the paper feeding roller 211, the paper cutting device 230 and the paper cutting device 240 are increased, so that the paper feeding device 310 provided with the paper separating component 312 greatly improves the paper separating efficiency of the PCBs and reduces the generation of the waste paper without increasing the sizes of the paper feeding roller 211, the paper cutting device 230, the paper cutting device 240 and the like.

As shown in fig. 7 and 8, in a specific embodiment of this embodiment, there are four stacked positions of the PCB boards on the rack 100 and are arranged side by side, the corresponding paper sheets need to be cut into four sheets arranged side by side, four sets of suction cup assemblies 311 and horizontal sliding frames 3125 are provided, two drive motors 3123 are installed on the mounting rack 3121 and are respectively located at two diagonal positions of the mounting rack 3121, there are two corresponding timing belts 3124, and two guide rails 3122 are provided and are arranged oppositely. The four horizontal sliding frames 3125 are respectively installed on the two tamping drums in a sliding mode through a sliding block structure, the two horizontal sliding frames 3125 positioned in the middle of the four horizontal sliding frames 3125 are respectively connected with two sides of the same synchronous belt 3124, the driving motor 3123 drives the synchronous belt 3124 to rotate and simultaneously drives the two horizontal sliding frames 3125 positioned in the middle to mutually approach or separate from each other so as to realize the adjustment of the distance between the two synchronous belts 3124, one of the two horizontal sliding frames 3125 positioned on the two sides is not connected with any one synchronous belt 3124, the other one is connected with the other synchronous belt 3124, the paper separating component 312 with the structure can realize the adjustment of the distance between any two adjacent horizontal sliding frames 3125, namely the distance between four groups of sucker components 311 arranged side by side and four paper sheets adsorbed on the sucker components can be adjusted, so that the paper folding packaging requirements of the PCB boards with different sizes are met.

As shown in fig. 7 and 8, in the present embodiment, a plurality of suction cup mounting frames 3126 are slidably mounted on the horizontal sliding frame 3125 along the length direction of the horizontal sliding frame 3125, and are alternately disposed at opposite sides of the horizontal sliding frame 3125. In a specific embodiment of this embodiment, three suction cup assemblies 311 are used to jointly adsorb a sheet, wherein two suction cup assemblies 311 are located on one side of the horizontal sliding rack 3125, another suction cup assembly 311 is located on one side of the horizontal sliding rack 3125, and the three suction cup assemblies 311 of the same group are arranged in a triangle. Adopt the mode of the crisscross arrangement in horizontal carriage 3125 both sides of three sucking disc mounting bracket 3126 and the sucking disc subassembly 311 that corresponds quantity, sucking disc mounting bracket 3126 is adjustable in the mounted position on horizontal carriage 3125 moreover, can make the distribution range of three sucking disc subassembly 311 bigger, when utilizing three sucking disc subassembly 311 to adsorb a scraps of paper simultaneously, not only can improve the scraps of paper along with the stability of sucking disc subassembly 311 operation in-process, can also be through the mounted position of adjusting sucking disc mounting bracket 3126 in order to adapt to the absorption requirement of not equidimension scraps of paper. In other embodiments, the number of the suction cup assemblies 311 for sucking the same paper sheet can be set to four or more

As shown in fig. 7 and 8, in the present embodiment, the suction cup mounting bracket 3126 is provided with a sliding groove 3127 extending along the side-by-side direction of the plurality of paper pieces, and the suction cup assembly 311 is slidably mounted on the sliding groove 3127. The mode of sucking disc subassembly 311 slidable mounting in spout 3127 on sucking disc mounting bracket 3126 can adjust the interval between a plurality of sucking disc subassemblies 311 that adsorb a scraps of paper simultaneously to the scraps of paper of adaptation different size and dimension snatchs the demand, and the practicality is stronger.

To sum up, the automatic paper feeding mechanism and the automatic stacking and separating device for PCB boards provided by the embodiment of the present invention realize the full automation of the multi-path paper cutting, separating and feeding processes by arranging the paper separating assembly 312 capable of separating a plurality of paper sheets on the paper feeding device 310, and cooperate with the cooperative operation of the PCB board conveying line 320 and the board feeding device 330 to realize the synchronous operation of adding the separating paper to a plurality of groups of PCB boards, thereby greatly improving the separating paper adding efficiency of the PCB boards; and because the sucking disc component 311 can only suck one piece of paper at a time, the problems of paper waste, influence on subsequent weighing and other procedures caused by sucking a plurality of pieces of paper at a time are avoided.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. An automatic paper feeding mechanism is characterized by comprising a conveying platform (210), a paper feeding device (220), a paper cutting device (230), a paper cutting device (240), a paper sucking platform (250) and a paper feeding device (310) which are arranged on a rack (100), wherein the conveying platform (210) is positioned between the paper feeding device (220) and the paper feeding device (310), and the paper cutting device (230) and the paper cutting device (240) are arranged above the conveying platform (210);

a pair of paper feeding rollers (211) which are matched with each other to clamp the paper and provide running power for the paper are arranged on the conveying platform (210);

the paper feeding device (220) comprises a paper feeding drum (221) for supplying paper to be cut to the paper feeding end of the conveying platform (210);

the paper cutting device (230) comprises a plurality of cutting assemblies for cutting the paper being conveyed on the conveying platform (210) into a plurality of strip-shaped paper along the conveying direction of the paper;

the paper cutting device (240) comprises a cutter assembly (242) for cutting a plurality of strip-shaped paper sheets which are being conveyed into a plurality of paper sheets which are independent from each other along the direction perpendicular to the paper conveying direction;

the paper suction platform (250) is arranged at the paper outlet end of the conveying platform (210) and is used for receiving a plurality of paper sheets conveyed by the conveying platform (210);

go up paper device (310) including installing be used for absorbing respectively in frame (100) inhale many scraps of paper subassembly (311) of setting side by side on paper platform (250), the drive multiunit sucking disc subassembly (311) are along many the side by side direction of scraps of paper separates each other, in order to increase adjacent two divide paper subassembly (312) of the interval between the scraps of paper to and drive the multiunit sucking disc subassembly (311) and divide paper subassembly (312) to be in inhale and be reciprocating motion's drive module (313) between the pile board position of paper station and a plurality of PCB board of paper platform (250).

2. The automated feeding mechanism of claim 1, wherein the feeding device (310) comprises: the mounting plate (314) is driven by the driving module (313) to reciprocate between a paper suction station of the paper suction platform (250) and a stacking position of a plurality of PCB boards; the vertical driving cylinder (315) is arranged on the mounting plate (314) and is used for driving the suction cup assembly (311) and the paper separating assembly (312) to do vertical reciprocating motion;

the paper separation assembly (312) comprises: the paper scrap collecting device comprises a mounting frame (3121) connected to the telescopic end of the vertical driving cylinder (315) and driven by the vertical driving cylinder (315) to do vertical lifting motion below the mounting plate (314), a guide rail (3122) installed below the mounting frame (3121) and extending along the side-by-side direction of a plurality of paper scraps, a plurality of driving motors (3123) vertically installed on the mounting frame (3121), a plurality of synchronous belts (3124) respectively driven by the driving motors (3123) to do reciprocating motion, a plurality of horizontal sliding frames (3125) respectively in transmission connection with the plurality of synchronous belts (3124) and slidably installed on the guide rail (3122), and the plurality of horizontal sliding frames (3125) are arranged along the side-by-side direction of the plurality of paper scraps; each horizontal sliding frame (3125) is connected with a plurality of sucker mounting frames (3126) for mounting the sucker component (311).

3. The automated paper feeding mechanism of claim 2, wherein a plurality of the suction cup mounting racks (3126) are slidably mounted on the horizontal sliding rack (3125) along a length direction of the horizontal sliding rack (3125) and are alternately arranged at opposite sides of the horizontal sliding rack (3125).

4. The automated feeding mechanism according to claim 3, wherein the suction cup mounting bracket (3126) is provided with a sliding groove (3127) extending along a side-by-side direction of a plurality of the paper sheets, and the suction cup assembly (311) is slidably mounted on the sliding groove (3127).

5. The automatic paper feeding mechanism according to claim 1, wherein the paper cutting device (230) further comprises a first fixing frame (231) of the frame (100) installed above the conveying platform (210), and a plurality of guide rods (232) horizontally arranged along a direction perpendicular to the paper conveying direction are arranged on the first fixing frame (231); the slitting component comprises a plurality of cutter seats (233) which are slidably arranged along the axial direction of the guide rods (232) and a first cutter (234) which is arranged on the cutter seats (233) and has a cutting edge facing the conveying platform (210).

6. The automated feeding mechanism according to claim 1, wherein the paper cutting device (240) further comprises a second fixing frame (241) installed above the conveying platform (210), and a cutter driving structure for driving the cutter assembly (242) to move vertically so that the cutter assembly (242) cooperates with the conveying platform (210) to cut the paper; the cutter component (242) is a second cutter which is longitudinally slidably mounted on the second fixing frame (241) and the cutting edge of the second cutter is transversely and horizontally arranged.

7. The automatic paper feeding mechanism of claim 1, wherein the paper suction platform (250) comprises a bearing plate (251) for bearing paper sheets and having air suction holes densely arranged on the upper surface, and an air suction base (252) connected below the bearing plate (251) and having an air suction channel (253) communicated with the air suction holes inside, the air suction channel (253) is communicated with an air suction system for sucking air in the air suction channel (253) outwards.

8. The automatic paper feeding mechanism according to claim 7, wherein a shifting device (260) for driving the paper suction platform (250) to reciprocate between the paper feeding station and the paper suction station of the paper suction platform (250) along the conveying direction of the paper is mounted on the frame (100).

9. The automatic paper feeding mechanism according to claim 8, wherein two paper collecting grooves (270) located at two opposite sides of a paper suction station of the paper suction platform (250) are installed on the machine frame (100), and a cleaning device (280) which is located above the paper suction platform (250) and reciprocates between the two paper collecting grooves (270) to clean paper scraps above the paper suction platform (250) is further installed on the machine frame (100) in a sliding manner.

10. An automatic PCB stacking and separating device is characterized by comprising a PCB conveying line (320) arranged on a rack (100), a loading device (330) used for synchronously conveying a plurality of PCBs arranged side by side on the PCB conveying line (320) to a plurality of stacking positions, and an automatic paper loading mechanism according to any one of claims 1-9, wherein the paper loading device (310) of the automatic paper loading mechanism is used for separating and conveying a plurality of cut paper sheets arranged side by side to a position right above the stacking positions.