CN114313925A - Printed circuit board conveying and overturning device and method - Google Patents
Printed circuit board conveying and overturning device and method Download PDFInfo
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- CN114313925A CN114313925A CN202210250107.6A CN202210250107A CN114313925A CN 114313925 A CN114313925 A CN 114313925A CN 202210250107 A CN202210250107 A CN 202210250107A CN 114313925 A CN114313925 A CN 114313925A
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Abstract
The application provides a printed circuit board conveying and overturning device and a method, and the device comprises: a plurality of conveying rollers arranged at intervals; the fulcrum mechanism comprises a linear assembly, a rotating assembly and an L-shaped plate; the upper jacking slow descending mechanism comprises a driving assembly, an upper jacking assembly and a slow descending assembly; when the L-shaped plate limits the circuit board from one side edge of the circuit board, the upper jacking assembly jacks up the other side of the circuit board, the linear assembly synchronously drives the rotating assembly to move, and the rotating assembly synchronously drives the L-shaped plate to rotate; when the circuit board is jacked and turned to incline to one side of the slow descending assembly by a preset angle under the action of the jacking assembly and the L-shaped plate, the slow descending assembly rotates to be in contact with the circuit board, and after the circuit board is contacted with the circuit board, the slow descending assembly is used for rotating downwards under the action of the driving assembly. The scheme realizes automatic turnover of the circuit board from the side surface, reduces the size of the device, and avoids too large lengths of conveying lines and production line equipment.
Description
Technical Field
The invention relates to printed circuit board preparation equipment, in particular to a printed circuit board conveying and overturning device and a method.
Background
With the development of the printed circuit board industry and the continuous improvement of the requirements on the production efficiency, the processing and manufacturing of the printed circuit board are gradually popularized to automatic production equipment. In the production process of solder resist or characters and the like, one surface needs to be turned over after being manufactured, and then the other surface needs to be manufactured, so that a turning device is used in the automatic production equipment. The front end of a printed circuit board is fixed in the turning mode of the existing automatic equipment, and then the printed circuit board is turned for 180 degrees, so that the turning device is large in size, the automatic production equipment is too large, and the problem that automatic transformation cannot be realized due to the fact that the original site is not enough often occurs.
Disclosure of Invention
In order to solve the defects of the prior art, the application provides a printed circuit board conveying and overturning device and a method, which are used for automatically overturning a circuit board from the side, and the overturned circuit board can be positioned at the original position, so that the size of the device can be reduced, and the phenomenon that conveying lines and production line equipment are too overstaffed is avoided.
In order to achieve the above object, the present invention employs the following techniques:
a printed circuit board conveying and overturning device comprises:
the conveying roller group comprises a plurality of conveying rollers arranged at intervals and is used for conveying the circuit board;
the fulcrum mechanism is arranged at the gap between the conveying rollers and comprises a linear assembly, a rotating assembly arranged at the moving end of the linear assembly and an L-shaped plate arranged at the rotating end of the rotating assembly;
the upper jacking slow-descending mechanism is arranged at the gap between the conveying rollers and comprises a driving assembly, an upper jacking assembly and a slow-descending assembly, and the upper jacking assembly and the slow-descending assembly are connected with the driving assembly;
the upper jacking assembly is used for jacking the other side of the circuit board upwards under the action of the driving assembly when the L-shaped plate limits the circuit board from one side of the circuit board; the linear assembly is used for synchronously driving the rotating assembly to move towards the other side of the circuit board when the other side of the circuit board is jacked up, and the rotating assembly is used for synchronously driving the L-shaped board to rotate when the rotating assembly is driven to move by the linear assembly so as to enable the horizontal section of the L-shaped board to incline upwards;
when the circuit board is jacked to incline to one side of the slow-falling component by a preset angle under the action of the jacking component and the L-shaped plate, the slow-falling component rotates up to be in contact with the circuit board, and after the circuit board is in contact with the circuit board, the slow-falling component rotates downwards under the action of the driving component.
When the slowly-falling component rotates to contact with the circuit board, included angles are formed between the horizontal section and the vertical section of the L-shaped plate and the horizontal plane respectively, and the distance between the contact position of the slowly-falling component and the circuit board and the contact position of the L-shaped plate and the circuit board is more than or equal to one half of the width of the circuit board.
Furthermore, the supporting point mechanism is one, the upper top slow descending mechanisms are multiple, the upper top slow descending mechanisms and the supporting point mechanisms are respectively arranged at different gaps, each upper top slow descending mechanism is also respectively arranged at different gaps, and the supporting point mechanisms are positioned between two upper top slow descending mechanisms along the conveying direction; or the plurality of fulcrum mechanisms are provided, the upper top slow descending mechanism is one, the upper top slow descending mechanism and the fulcrum mechanisms are respectively arranged at different gaps, each fulcrum mechanism is also respectively arranged at different gaps, and the upper top slow descending mechanism is positioned between two of the fulcrum mechanisms along the conveying direction.
Further, the drive assembly is including locating the removal strip on a backup pad, remove strip bottom sliding fit in the spout of backup pad, the guide way that has along length direction setting in the middle of the removal strip top surface, the guide way both sides wall has the rack, the rack meshes with first drive gear, first drive gear meshes has second drive gear, second drive gear lower part is located the guide way, first drive gear coaxial coupling first drive shaft, second drive gear coaxial coupling second drive shaft, first drive shaft and second drive shaft are located the backup pad through a rotation support respectively, the backup pad bottom surface is equipped with lead screw motor assembly, lead screw motor assembly's removal end is connected with removal strip bottom, first drive shaft is connected the top subassembly, second drive shaft is connected and is slowly fallen the subassembly.
Furthermore, the screw rod motor assembly comprises a driving motor arranged on the bottom surface of the supporting plate, a screw rod with one end connected with an output shaft of the driving motor, a support arranged on the bottom surface of the supporting plate and rotatably matched with the other end of the screw rod, and a moving seat arranged on the screw rod in a penetrating manner, wherein the moving seat is connected with the bottom of the moving strip.
Furthermore, the top-up component comprises an arc-shaped top rod and a first driving rod connected with the bottom end of the arc-shaped top rod, and the first driving rod is connected with a first driving shaft.
Still further, the top end of the arc-shaped ejector rod is wrapped with a rubber pad.
Furthermore, the slow descending assembly comprises an arc-shaped rotating rod, one end of the arc-shaped rotating rod is connected with the second driving shaft, and the other end of the arc-shaped rotating rod is provided with a roller set.
Still further, be equipped with the auxiliary stay pole on the arc bull stick, the auxiliary stay pole top also is equipped with the roller train.
Still further, the roller train is including two at least gyro wheels that set up side by side, and when the roller train of arc bull stick was in the level state of arranging, the roller train of auxiliary stay pole also was in the level state of arranging, and the top surface height of the roller train of auxiliary stay pole is less than the top surface height predetermined distance of the roller train of arc bull stick, and has predetermined span between the roller train of auxiliary stay pole and the roller train of arc bull stick.
Further, the rotating assembly comprises a rotating shaft arranged on a pair of supporting plates, the rotating shaft is connected to the joint of the horizontal section and the vertical section of the L-shaped plate, a driven gear is arranged at one end of the rotating shaft, a driving gear is meshed with the driven gear, the driving gear is connected with a rotating output shaft of a rotating motor, the rotating motor is arranged on a moving block, the rotating output shaft penetrates through the supporting plates, and the moving block is connected with a moving end of the linear assembly.
Furthermore, the linear assembly comprises a linear guide rail and a screw rod arranged in the linear guide rail, one end of the screw rod is rotationally matched with the end wall at one end of the linear guide rail, the other end of the screw rod is connected with an output shaft of a linear motor, the linear motor is connected with the other end of the linear guide rail, and the bottom of the moving block penetrates through the screw rod.
Still further, the length direction of the linear guide is parallel to the length direction of the conveying roller.
Further, the front of the horizontal section and the front of the vertical section of the L-shaped plate are both provided with corrugated rubber layers.
Further, when the L-shaped plate rotates to the state that the horizontal section of the L-shaped plate is in a horizontal state, the front surface of the horizontal section is flush with the top surface of the conveying roller; when the L-shaped plate rotates to the vertical section of the L-shaped plate and is in a horizontal state, the front surface of the vertical section is flush with the top surface of the conveying roller.
A printed circuit board conveying and overturning method is realized by the printed circuit board conveying and overturning device, and the method comprises the following steps:
conveying the circuit board on the conveying roller group, and pausing the conveying roller group when the circuit board reaches the overturning operation region of the conveying roller group;
the L-shaped plate is rotated to the horizontal section of the L-shaped plate to be in a horizontal state through the rotating assembly, the rotating assembly and the L-shaped plate are moved through the linear assembly, the L-shaped plate is enabled to limit the circuit board from one side edge of the circuit board, wherein during limiting, the front surface of the horizontal section of the L-shaped plate is contacted with the bottom surface of the circuit board, and one side edge of the circuit board is contacted with the bottom of the front surface of the vertical section of the L-shaped plate;
the rotating assembly and the L-shaped plate are continuously moved, meanwhile, the rotating assembly synchronously rotates the L-shaped plate to enable the horizontal section of the L-shaped plate to incline upwards, meanwhile, the driving assembly drives the upward jacking assembly to rotate upwards to jack the other side of the circuit board upwards, and the driving assembly synchronously drives the slow descending assembly to rotate upwards from one side of the circuit board;
when the circuit board is jacked and turned to a vertical state under the action of the jacking assembly and the L-shaped plate and continuously inclines to one side of the slow descending assembly by a preset angle, the slow descending assembly rotates to be in contact with the circuit board;
after the contact, the reverse synchronous drive of drive assembly goes up the subassembly and slowly falls the subassembly and rotates downwards, and the sharp subassembly keeps driving the runner assembly and removes, and the runner assembly keeps driving L template and continues to rotate, and below the subassembly top surface that slowly falls, the L template moves to the opposite side along with the runner assembly and rotates to vertical section department in the horizontality under the runner assembly effect, makes the circuit board accept again on the transfer roller.
The invention has the beneficial effects that:
1. the mode of side face turning and turning in the original position area is adopted, so that the turning space is saved, the equipment volume can be reduced, the occupied area length of a conveying turning line is shortened, the production line is prevented from being too large, and the factory space is saved so as to facilitate automatic modification;
2. the movable and rotatable L-shaped plate is used as a fulcrum when one side of the circuit board is jacked up and also used as a fulcrum when the circuit board descends, and the horizontal section and the vertical section of the L-shaped plate can restrain the circuit board to a certain degree; meanwhile, the upper jacking assembly for jacking the circuit board from the other side and the slow descending assembly for receiving and slowly descending the circuit board from one side are matched, so that the circuit board can be overturned in a clamping-free and cylinder/oil cylinder-free mode, the overturning mode is effective, the cost of the device is reduced, and the later maintenance is facilitated;
3. through the structural design of the driving assembly, the upper jacking assembly and the slow descending assembly are synchronously rotated upwards and downwards from different sides, and are integrated together, so that the driving configuration is saved, and the structural layout in a narrow space is facilitated.
Drawings
Fig. 1 is a front perspective view of the overall structure of the device according to the embodiment of the present application.
Fig. 2 is a rear perspective view of the overall structure of the device according to the embodiment of the present application.
Fig. 3 is a front end view of the overall structure of the device according to the embodiment of the present application.
Fig. 4 is a perspective view of a fulcrum mechanism according to an embodiment of the present application.
Fig. 5 is a side view of a fulcrum mechanism of an embodiment of the present application.
Fig. 6 is a perspective view of a rotating assembly and an L-shaped plate according to an embodiment of the present application.
Fig. 7 is a perspective view of an upward and downward descending mechanism according to an embodiment of the present application.
Fig. 8 is a side view of an upward and downward slow-descending mechanism according to an embodiment of the present application.
Fig. 9 is a top view of the upward and downward slow-descending mechanism according to the embodiment of the present application.
Fig. 10 is a schematic diagram of an initial state of a circuit board according to an embodiment of the present application.
Fig. 11 is a schematic diagram of a circuit board flipped up state according to an embodiment of the present application.
Fig. 12 is a schematic diagram illustrating a state in which a circuit board according to an embodiment of the present application is inclined at a predetermined angle beyond a vertical state.
Fig. 13 is a schematic diagram of a circuit board descending state according to an embodiment of the present application.
Fig. 14 is a schematic diagram of a circuit board in a continuous slow-down state according to an embodiment of the present application.
Fig. 15 is a schematic diagram of a state of the circuit board after the circuit board is turned over according to the embodiment of the application.
Reference numerals: 1-conveying roller group, 2-fulcrum mechanism, 20-L type plate, 201-corrugated rubber layer, 21-rotating component, 22-rotating shaft, 23-driven gear, 24-rotating output shaft, 25-driving gear, 26-rotating motor, 27-supporting plate, 28-moving block, 29-linear component, 291-linear motor, 292-linear guide rail, 293-screw rod, 3-top component, 31-arc-shaped top rod, 32-first driving rod, 33-rubber pad, 34-first driving shaft, 4-slow descending component, 41-arc-shaped rotating rod, 42-auxiliary supporting rod, 43-roller group, 44-second driving shaft, 5-driving component, 50-supporting plate and 51-driving motor, 511-support, 52-screw rod, 53-moving seat, 54-sliding groove, 55-moving bar, 551-guiding groove, 552-rack, 56-first driving gear, 57-second driving gear, and 58-rotating bracket.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are a part of the embodiments of the present invention, not all of the embodiments of the present invention.
The embodiment of the application provides a printed circuit board carries turning device, as shown in fig. 1~ 4, include: conveying roller set 1, fulcrum mechanism 2, go up the top and slowly fall the mechanism.
The conveying roller group 1 includes a plurality of conveying rollers arranged at intervals for conveying the circuit board,
the fulcrum mechanism 2 is arranged in the gap between the conveying rollers and comprises a linear assembly 29, a rotating assembly 21 arranged at the moving end of the linear assembly 29 and an L-shaped plate 20 arranged at the rotating end of the rotating assembly 21. In the initial state, the horizontal section of the L-shaped plate 20 is in the horizontal state, the front surface of the horizontal section is flush with the top surface of the conveying roller or slightly lower than the top surface of the conveying roller by a preset height difference, the front surface of the vertical section faces the center of the conveying roller group 1, and the L-shaped plate 20 and the rotating assembly 21 are located on one side of the conveying roller group 1.
The upper top slow descending mechanism comprises a driving assembly 5, and an upper top assembly 3 and a slow descending assembly 4 which are connected with the driving assembly 5. Specifically, the upper jacking component 3 is used for jacking up the other side of the circuit board under the action of the driving component 5 when the L-shaped board 20 limits the circuit board from one side of the circuit board; the linear assembly 29 is used for synchronously driving the rotating assembly 21 to move towards the other side of the circuit board when the other side of the circuit board is jacked up, and the rotating assembly 21 is used for synchronously driving the L-shaped board 20 to rotate when the rotating assembly 21 is driven to move by the linear assembly 29 so as to enable the horizontal section of the L-shaped board 20 to incline upwards; when the circuit board is jacked to the other side of the slow descending component 4 by the jacking component 3 and the L-shaped plate 20 to incline to a preset angle towards one side of the slow descending component 4, the slow descending component 4 rotates to be in contact with the circuit board, and after the contact, the slow descending component 4 rotates downwards by the driving component 5.
Wherein, when slowly falling subassembly 4 and going up to when contacting with the circuit board, the horizontal segment and the vertical section of L template 20 all have the contained angle respectively with between the horizontal plane, and L template 20 rotates the intermediate position this moment promptly, all has the contained angle between horizontal segment and vertical section and the circuit board.
Meanwhile, the distance between the contact position of the descent control assembly 4 and the circuit board and the contact position of the L-shaped plate 20 and the circuit board is more than or equal to one half of the width of the circuit board, so that the support point position of the contact position of the descent control assembly 4 and the circuit board and the fulcrum position of the contact position of the L-shaped plate 20 and the circuit board can effectively keep the state of the circuit board.
When the L-shaped plate 20 rotates to the state that the horizontal section of the L-shaped plate 20 is in a horizontal state, the front surface of the horizontal section is flush with the top surface of the conveying roller; when L template 20 rotated to the vertical section of L template 20 when in the horizontality, the vertical section was positive and the top surface of transfer roller flushed, so set up, was convenient for initially act on the circuit board when spacing, also was convenient for simultaneously after the upset targetting in place, accepted the circuit board on conveying roller set 1.
Wherein, the front of the horizontal segment and the front of the vertical segment of the L-shaped board 20 are both provided with a corrugated rubber layer 201 so as to be used as a lower support point for supporting the circuit board, and to keep the relative stability of the fulcrum.
The circuit board conveying and overturning device comprises the following steps:
firstly, conveying the circuit board on the conveying roller group 1, and pausing the conveying roller group 1 when the circuit board reaches the overturning operation region of the conveying roller group 1; here, the fulcrum mechanism 2 and the upward and downward slowly-descending mechanism are both disposed in the turning operation area so as to facilitate turning of the operation circuit board.
Specifically, in order to realize the turnover, the pivot mechanism 2 is at least one, and is used as a pivot on one side of the circuit board to provide support for the turnover, and the upper-jacking slow-descending mechanism is also at least one, and is used for jacking up the circuit board from the other side and slowly descending from one side after being turned up. Preferably, in order to improve the turning stability and effectiveness, when only one fulcrum mechanism 2 is provided, a plurality of upper-jacking slow-lowering mechanisms, for example two upper-jacking slow-lowering mechanisms, are arranged at different gaps with the fulcrum mechanism 2, and are also arranged at different gaps, and the fulcrum mechanism 2 is arranged between the two upper-jacking slow-lowering mechanisms along the conveying direction, that is, the upper-jacking slow-lowering mechanisms can be symmetrically distributed at two sides of the fulcrum mechanism 2; another preferred mode is that when only one upper top slow-descending mechanism is provided, the number of the fulcrum mechanisms 2 is multiple, for example, two fulcrum mechanisms 2 are provided, at this time, the upper top slow-descending mechanism and the fulcrum mechanisms 2 may also be respectively provided at different gaps, each fulcrum mechanism 2 is also respectively provided at different gaps, and along the conveying direction, the upper top slow-descending mechanism is located between two fulcrum mechanisms 2, that is, the fulcrum mechanisms 2 are symmetrically distributed on two sides of the upper top slow-descending mechanism.
The upper jacking slow-descending mechanism and the fulcrum mechanism 2 are respectively arranged at different gaps, and the purpose is that: the clearance is usually not very big, is unfavorable for holding two kinds of mechanisms, and two kinds of mechanisms hold in a clearance jointly, in order to avoid during operation, both mutual interference, and is higher to structural design's requirement.
In the example shown in fig. 1-2, a scheme of two fulcrum mechanisms 2 and two upper top slow-descending mechanisms is adopted, wherein the two fulcrum mechanisms 2 are located between the two upper top slow-descending mechanisms, and each mechanism is located in one gap. As another embodiment of this case, two upper and lower descent control mechanisms may be located between the two fulcrum mechanisms 2. Both can better keep the overturning smoothness and control the overturned position.
Then, after the conveying roller group 1 is suspended, the L-shaped plate 20 is rotated to the horizontal section of the L-shaped plate 20 to be in a horizontal state through the rotating assembly 21, and the rotating assembly 21 and the L-shaped plate 20 are moved by using the linear assembly 29, so that the L-shaped plate 20 limits the circuit board from one side edge of the circuit board; during limiting, the front surface of the horizontal section of the L-shaped plate 20 is contacted with the bottom surface of the circuit board, and one side edge of the circuit board is contacted with the bottom of the front surface of the vertical section of the L-shaped plate 20.
Then, the rotating assembly 21 and the L-shaped plate 20 are moved continuously, and at the same time, the rotating assembly 21 synchronously rotates the L-shaped plate 20 to enable the horizontal section thereof to incline upwards, and at the same time, the driving assembly 5 drives the upward-pushing assembly 3 to rotate upwards to jack up the other side of the circuit board, and the driving assembly 5 synchronously drives the slow-descending assembly 4 to rotate upwards from one side of the circuit board.
Then, when the circuit board is jacked and turned to a vertical state under the action of the jacking assembly 3 and the L-shaped plate 20 and continuously inclines to one side of the slow descending assembly 4 by a preset angle, the slow descending assembly 4 rotates to be in contact with the circuit board; after the circuit board is contacted, the driving assembly 5 reversely and synchronously drives the upper jacking assembly 3 and the slow descending assembly 4 to respectively rotate downwards, the linear assembly 29 keeps driving the rotating assembly 21 to move, the rotating assembly 21 keeps driving the L-shaped plate 20 to continue rotating until the slow descending assembly 4 rotates downwards to a position below the top surface of the conveying roller, the L-shaped plate 20 moves to the other side along with the rotating assembly 21 and rotates to a horizontal state at a vertical section under the action of the rotating assembly 21, and the circuit board is enabled to be re-supported on the conveying roller.
Through this kind of mode upset, carry out from the circuit board side, rather than the terminal surface, increase the reduction to the altitude requirement in upset space during the upset, especially be the condition of width direction more than 2 times size to circuit board length direction, simultaneously, the upset of this example, can be better keep after the upset, the circuit board still is in the position region before the upset, can not directly carry the direction upset to the front end like the terminal surface upset mode, so also be favorable to, practice thrift transmission path, the space utilization in the factory of being convenient for.
As shown in fig. 7 to 9, as a further detailed embodiment, the driving assembly 5 includes a moving bar 55 disposed on a support plate 50, a bottom portion of the moving bar 55 is slidably fitted into the sliding groove 54 of the support plate 50, a guide groove 551 is formed in the middle of a top surface of the moving bar 55 along a length direction, racks 552 are formed on both side walls of the guide groove 551, the racks 552 are engaged with the first driving gear 56, the first driving gear 56 is engaged with a second driving gear 57, and a thickness of the second driving gear 57 is smaller than that of the first driving gear 56, so that a lower portion of the second driving gear 57 is positioned in the guide groove 551, and the second driving gear 57 is not engaged with the racks 552, but is only radially stabilized by the guide groove 551 and is driven to rotate only when the first driving gear 56 rotates; the first driving gear 56 is coaxially connected with the first driving shaft 34, the second driving gear 57 is coaxially connected with the second driving shaft 44, the first driving shaft 34 and the second driving shaft 44 are respectively arranged on the supporting plate 50 through a rotating bracket 58, the bottom surface of the supporting plate 50 is provided with a screw rod motor assembly, the moving end of the screw rod motor assembly is connected with the bottom of the moving strip 55, the first driving shaft 34 is connected with the upper jacking assembly 3, and the second driving shaft 44 is connected with the descent control assembly 4.
When the screw motor assembly drives the moving end to move, the moving bar 55 is driven to move along the sliding groove 54. When the moving bar 55 moves, the rack 552 acts on the first driving gear 56 to drive the first driving gear 56 and the first driving shaft 34 to rotate, so as to realize the rotation control of the upward-pushing assembly 3; meanwhile, the movement of the moving bar 55 can maintain the smoothness of the second driving gear 57 in the radial direction through the guide groove 551; the second driving gear 57 rotates in a reverse direction under the engagement with the first driving gear 56, that is, in a direction opposite to the rotation direction of the first driving gear 56, so as to control the rotation of the descent control assembly 4. Therefore, the driving assembly 5 realizes synchronous control over the jacking assembly 3 and the slow descending assembly 4, the trouble that the jacking assembly 3 and the slow descending assembly 4 are respectively provided with independent driving is avoided, and the overall structure of the device is simplified.
As an embodiment of the screw rod motor assembly, a driving motor 51 and a screw rod 52 may be adopted, specifically, the screw rod motor assembly includes a driving motor 51 disposed on the bottom surface of the supporting plate 50, a screw rod 52 having one end connected to an output shaft of the driving motor 51, a support 511 disposed on the bottom surface of the supporting plate 50 and rotatably matched with the other end of the screw rod 52, and a moving seat 53 disposed on the screw rod 52 in a penetrating manner, wherein the moving seat 53 is connected to the bottom of a moving bar 55.
As shown in fig. 7 to 9, the top pushing assembly 3 includes an arc-shaped top rod 31 and a first driving rod 32 connected to a bottom end of the arc-shaped top rod 31, and the first driving rod 32 is connected to a first driving shaft 34. Wherein, arc ejector pin 31 top parcel has rubber pad 33 to when acting on the circuit board on arc ejector pin 31 top, can utilize rubber pad 33 to contact, cause the physical damage to the circuit board in order to avoid.
The slow descending assembly 4 comprises an arc-shaped rotating rod 41, one end of the arc-shaped rotating rod 41 is connected with a second driving shaft 44, and the other end of the arc-shaped rotating rod 41 is provided with a roller group 43. Through the setting of roller train 43, can be so that when arc bull stick 41 and circuit board contact, not only provide the upper portion strong point that slowly falls, can descend the circuit board to slowly falling subassembly 4 one side when descending simultaneously for the circuit board can slide for roller train 43, compares in the corrugate rubber layer 201 that L template 20 provided, and the contact point of L template 20 and circuit board will be relative keeps more stable effect.
Based on the circuit board turning process of the driving assembly 5, the upward lifting assembly 3 and the slow descending assembly 4, as shown in fig. 10-13 and fig. 15, the detailed process is as follows:
first, in an initial state, as shown in fig. 10, the horizontal section of the L-shaped board 20 is kept horizontal and contacts the bottom surface of one side of the circuit board, which is the bottom surface of the left side of the circuit board in the view of illustration;
then, the first driving gear 56 rotates under the action of the rack 552, so that the top end of the arc-shaped ejector rod 31 acts on the circuit board to push the circuit board from the other side to the upper side, i.e. the right side in the figure, and at the same time, the second driving gear 57 acts on the first driving gear 56 to rotate in the reverse direction, so that the arc-shaped rotating rod 41 rotates upwards from one side of the circuit board, i.e. the left side in the figure; as shown in fig. 11, the circuit board is in an upturned state when the circuit board is jacked up by the arc-shaped jacking rod 31 for a certain height, at this time, the L-shaped plate 20 moves for a certain distance along with the rotating assembly 21, and the L-shaped plate 20 rotates for a certain angle;
continuing to work, as shown in fig. 12, at this time, the circuit board has been turned up to just exceed the vertical position/state, and has been tilted to the left by a certain angle, and has been supported by the roller set 43 of the arc-shaped rotating rod 41, that is, has reached the upper limit of the turning of the arc-shaped top rod 31 and the arc-shaped rotating rod 41; and, at this time, the L-shaped plate 20 further rotates by more angles and moves more distances with the rotating assembly 21;
then, the first driving gear 56 rotates reversely under the action of the rack 552, and the second driving gear 57 rotates reversely to the first driving gear 56, so that the arc-shaped ejector rod 31 and the arc-shaped rotating rod 41 rotate downwards respectively, as shown in fig. 13, at this time, the L-shaped board 20 rotates by more angles, wherein the vertical section gradually starts to approach horizontally, meanwhile, the L-shaped board 20 approaches to the right along with the rotating assembly 21, the circuit board continues to incline along with the downward rotation of the arc-shaped rotating rod 41, the bottom end of the circuit board keeps in contact with the L-shaped board 20, because of the corrugated rubber layer 201, the contact point of the bottom end of the circuit board and the L-shaped board 20 is relatively kept stable, and the circuit board and the roller set 43 of the arc-shaped rotating rod 41 are in sliding contact, which is more beneficial for the inclination of the circuit board and has a certain displacement with the roller set 43 along the width direction of the circuit board;
finally, as shown in fig. 15, when the L-shaped board 20 moves to the right side and the other side of the circuit board is at the position during the initial state, the L-shaped board 20 also rotates to the original vertical section and is in the horizontal state, the arc-shaped ejector rod 31 and the arc-shaped rotating rod 41 also rotate to the position below the conveying roller, the circuit board inclines and descends, the conveying roller is received from the arc-shaped rotating rod 41 and the L-shaped board 20, the circuit board is leveled again after the turnover is realized, and the position can be basically consistent with the position before the turnover.
As a preferred embodiment, in view of space constraints, and the size design of the curved rotating rod 41, during the rotation of the arc-shaped rotating rod 41, after the rotation reaches a certain degree, the circuit board may be displaced along with the sliding of the roller set 43, the descending side of the circuit board will be separated from the arc-shaped rotating rod 41, and drops directly toward the conveying roller, although turning is achieved at this time, since the drop still exists at a certain height, namely, when the circuit board is separated, a certain included angle is still formed between the circuit board and the horizontal direction, and after the descending side of the circuit board falls, on the one hand, there may be damage caused by collision with the transfer roller, and at the same time, there may be positional shift after the circuit board is turned over due to such collision, and therefore, the arc-shaped rotating rod 41 is provided with an auxiliary supporting rod 42, which can be specifically arranged between two ends of the arc-shaped rotating rod 41 as shown in fig. 7-8. The top end of the auxiliary support rod 42 is also provided with a roller group 43. The roller set 43 includes at least two rollers arranged side by side, when the roller set 43 of the arc-shaped rotating rod 41 is in a horizontal arrangement state, the roller set 43 of the auxiliary supporting rod 42 is also in a horizontal arrangement state, and a predetermined span is provided between the roller set 43 of the auxiliary supporting rod 42 and the roller set 43 of the arc-shaped rotating rod 41.
Therefore, in the descending process, the roller set 43 of the auxiliary supporting rod 42 can continue to receive/contact the circuit board after the circuit board is separated from the roller set 43 of the arc-shaped rotating rod 41, as shown in fig. 14, so as to ensure that the slow descending component 4 maximally maintains the supporting slow descending effect on the circuit board in the whole descending process. Preferably, the height of the top surface of the roller set 43 of the auxiliary support rod 42 is lower than the height of the top surface of the roller set 43 of the arc-shaped rotating rod 41 by a predetermined distance, so that when the circuit board is just supported by the slow descending assembly 4 in a vertical state, the circuit board is supported at the roller set 43 of the arc-shaped rotating rod 41, and the circuit board is supported at a position equal to or greater than one half of the width of the circuit board, so as to be beneficial to keeping the stability of the circuit board in the descending process.
As a specific embodiment of the rotating assembly 21 and the linear assembly 29, a structure as shown in fig. 4 to 6 may be adopted, wherein the rotating assembly 21 includes a rotating shaft 22 disposed on a pair of support plates 27, the rotating shaft 22 is connected to a joint between the horizontal section and the vertical section of the L-shaped plate 20, one end of the rotating shaft 22 is provided with a driven gear 23, the driven gear 23 is engaged with a driving gear 25, the driving gear 25 is connected with a rotating output shaft 24 of a rotating motor 26, the rotating motor 26 is disposed on a moving block 28, the rotating output shaft 24 is disposed through the support plates 27, and the moving block 28 is connected with a moving end of the linear assembly 29.
When rotation is required, the rotation motor 26 is operated to rotate the driving gear 25 via the rotation output shaft 24 to rotate the driven gear 23, thereby rotating the L-shaped plate 20 via the rotation shaft 22.
The linear assembly 29 is arranged below the conveying roller group 1 and comprises a linear guide rail 292 and a screw 293 arranged in the linear guide rail 292, one end of the screw 293 is matched with the end wall of one end of the linear guide rail 292 in a rotating mode, the other end of the screw 293 is connected with an output shaft of a linear motor 291, the linear motor 291 is connected to the other end of the linear guide rail 292, and the bottom of a moving block 28 penetrates through the screw 293. The longitudinal direction of the linear guide 292 is parallel to the longitudinal direction of the conveying roller.
When movement is required, linear motor 291 acts on screw 293 to rotate, so that moving block 28 moves along linear guide 292 under the driving of screw 293.
Claims (10)
1. The utility model provides a printed circuit board carries turning device which characterized in that includes:
the conveying roller group (1) comprises a plurality of conveying rollers arranged at intervals and is used for conveying the circuit board;
the fulcrum mechanism (2) is arranged at the gap between the conveying rollers and comprises a linear assembly (29), a rotating assembly (21) arranged at the moving end of the linear assembly (29) and an L-shaped plate (20) arranged at the rotating end of the rotating assembly (21);
the upper jacking slow-descending mechanism is arranged at a gap between the conveying rollers and comprises a driving assembly (5), and an upper jacking assembly (3) and a slow-descending assembly (4) which are connected with the driving assembly (5);
the upper jacking component (3) is used for jacking the other side of the circuit board upwards under the action of the driving component (5) when the L-shaped plate (20) limits the circuit board from one side of the circuit board; the linear assembly (29) is used for synchronously driving the rotating assembly (21) to move towards the other side of the circuit board when the other side of the circuit board is jacked up, and the rotating assembly (21) is used for synchronously driving the L-shaped plate (20) to rotate when the rotating assembly (21) is driven to move by the linear assembly (29) so as to enable the horizontal section of the L-shaped plate (20) to incline upwards;
when the slowly-descending component (4) is used for jacking the other side of the circuit board upwards by the upper jacking component (3), the slowly-descending component rotates upwards from one side of the circuit board under the synchronous action of the driving component (5), and when the circuit board is jacked to incline to a preset angle towards one side of the slowly-descending component (4) under the action of the upper jacking component (3) and the L-shaped plate (20), the slowly-descending component (4) rotates upwards to be in contact with the circuit board, and after the contact, the slowly-descending component (4) is used for rotating downwards under the action of the driving component (5).
2. The printed circuit board conveying turnover device of claim 1, wherein when the slow descending assembly (4) rotates to contact with the circuit board, the horizontal section and the vertical section of the L-shaped plate (20) respectively form an included angle with the horizontal plane, and the contact position of the slow descending assembly (4) and the circuit board and the contact position of the L-shaped plate (20) and the circuit board are spaced by a distance which is more than or equal to one half of the width of the circuit board.
3. The printed circuit board conveying and overturning device according to claim 1, wherein the pivot mechanism (2) is one, the plurality of upper top slow-descending mechanisms are provided, the upper top slow-descending mechanisms and the pivot mechanisms (2) are respectively provided at different gaps, each upper top slow-descending mechanism is also respectively provided at different gaps, and the pivot mechanism (2) is located between two of the upper top slow-descending mechanisms along the conveying direction.
4. The printed circuit board conveying turnover device of claim 1, wherein the number of the fulcrum mechanisms (2) is multiple, the number of the upper top slow-falling mechanisms is one, the upper top slow-falling mechanisms and the fulcrum mechanisms (2) are respectively arranged at different gaps, the fulcrum mechanisms (2) are also respectively arranged at different gaps, and the upper top slow-falling mechanisms are positioned between two fulcrum mechanisms (2) along the conveying direction.
5. The printed circuit board conveying and inverting apparatus of claim 1, wherein the driving assembly (5) includes a moving bar (55) disposed on a support plate (50), a bottom portion of the moving bar (55) is slidably fitted into a sliding groove (54) of the support plate (50), a guide groove (551) disposed along a length direction is formed in a middle of a top surface of the moving bar (55), both side walls of the guide groove (551) have a rack (552), the rack (552) is engaged with a first driving gear (56), the first driving gear (56) is engaged with a second driving gear (57), a lower portion of the second driving gear (57) is disposed in the guide groove (551), the first driving gear (56) is coaxially connected with the first driving shaft (34), the second driving gear (57) is coaxially connected with the second driving shaft (44), the first driving shaft (34) and the second driving shaft (44) are respectively disposed on the support plate (50) through a rotating bracket (58), the bottom surface of the supporting plate (50) is provided with a screw rod motor assembly, the moving end of the screw rod motor assembly is connected with the bottom of a moving strip (55), a first driving shaft (34) is connected with the upper jacking assembly (3), and a second driving shaft (44) is connected with the slow descending assembly (4).
6. The printed circuit board conveying and overturning device of claim 5, wherein the lead screw motor assembly comprises a driving motor (51) arranged on the bottom surface of the support plate (50), a lead screw (52) with one end connected with an output shaft of the driving motor (51), a support (511) arranged on the bottom surface of the support plate (50) and rotatably matched with the other end of the lead screw (52), and a moving seat (53) arranged on the lead screw (52) in a penetrating way, wherein the moving seat (53) is connected with the bottom of the moving strip (55).
7. The printed circuit board conveying turnover device of claim 5, wherein the upper top assembly (3) comprises an arc-shaped top rod (31) and a first driving rod (32) connected with the bottom end of the arc-shaped top rod (31), and the first driving rod (32) is connected with the first driving shaft (34).
8. The printed circuit board conveying turnover device of claim 5, wherein the descent control assembly (4) comprises an arc-shaped rotating rod (41), one end of the arc-shaped rotating rod (41) is connected with the second driving shaft (44), and the other end of the arc-shaped rotating rod is provided with a roller group (43).
9. The printed circuit board conveying and overturning device is characterized in that the rotating assembly (21) comprises a rotating shaft (22) arranged on a pair of support plates (27), the rotating shaft (22) is connected to the joint of the horizontal section and the vertical section of the L-shaped plate (20), a driven gear (23) is arranged at one end of the rotating shaft (22), a driving gear (25) is meshed with the driven gear (23), the driving gear (25) is connected with a rotating output shaft (24) of a rotating motor (26), the rotating motor (26) is arranged on a moving block (28), the rotating output shaft (24) penetrates through the support plates (27), and the moving block (28) is connected with the moving end of the linear assembly (29).
10. A printed circuit board conveying and overturning method, which is realized by the printed circuit board conveying and overturning device according to any one of claims 1 to 9, and comprises the following steps:
conveying the circuit board on the conveying roller group (1), and pausing the conveying roller group (1) when the circuit board reaches the overturning operation area of the conveying roller group (1);
the L-shaped plate (20) is rotated to the horizontal section of the L-shaped plate (20) to be in a horizontal state through the rotating assembly (21), the rotating assembly (21) and the L-shaped plate (20) are moved through the linear assembly (29), the L-shaped plate (20) limits the circuit board from one side edge of the circuit board, wherein during limiting, the front surface of the horizontal section of the L-shaped plate (20) is contacted with the bottom surface of the circuit board, and one side edge of the circuit board is contacted with the bottom of the front surface of the vertical section of the L-shaped plate (20);
continuing to move the rotating assembly (21) and the L-shaped plate (20), simultaneously, synchronously rotating the L-shaped plate (20) by the rotating assembly (21) to enable the horizontal section of the L-shaped plate to incline upwards, simultaneously, driving the upward jacking assembly (3) to rotate upwards by the driving assembly (5) to jack up the other side of the circuit board upwards, and synchronously driving the slow descending assembly (4) to rotate upwards from one side of the circuit board by the driving assembly (5);
when the circuit board is jacked and turned to a vertical state under the action of the jacking assembly (3) and the L-shaped plate (20) and is continuously inclined to one side of the slow descending assembly (4) by a preset angle, the slow descending assembly (4) rotates to be in contact with the circuit board;
after the circuit board conveying device is contacted, the driving assembly (5) reversely and synchronously drives the jacking assembly (3) and the slow descending assembly (4) to rotate downwards, the linear assembly (29) keeps driving the rotating assembly (21) to move, the rotating assembly (21) keeps driving the L-shaped plate (20) to continue to rotate until the slow descending assembly (4) rotates downwards to the position below the top surface of the conveying roller, the L-shaped plate (20) moves to the other side along with the rotating assembly (21) and rotates to the vertical section to be in the horizontal state under the action of the rotating assembly (21), and the circuit board is enabled to be received on the conveying roller again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210250107.6A CN114313925B (en) | 2022-03-15 | 2022-03-15 | Printed circuit board conveying and overturning device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210250107.6A CN114313925B (en) | 2022-03-15 | 2022-03-15 | Printed circuit board conveying and overturning device and method |
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| CN114313925A true CN114313925A (en) | 2022-04-12 |
| CN114313925B CN114313925B (en) | 2022-05-10 |
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| CN202210250107.6A Active CN114313925B (en) | 2022-03-15 | 2022-03-15 | Printed circuit board conveying and overturning device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114655667A (en) * | 2022-05-25 | 2022-06-24 | 四川英创力电子科技股份有限公司 | Automatic appearance transfer device of transferring of printed circuit board |
| CN115279048A (en) * | 2022-09-26 | 2022-11-01 | 四川英创力电子科技股份有限公司 | Automatic conveying device for baking circuit board |
| CN115623691A (en) * | 2022-11-09 | 2023-01-17 | 四川英创力电子科技股份有限公司 | Printed circuit board feeding device and etching device |
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| CN114655667A (en) * | 2022-05-25 | 2022-06-24 | 四川英创力电子科技股份有限公司 | Automatic appearance transfer device of transferring of printed circuit board |
| CN115279048A (en) * | 2022-09-26 | 2022-11-01 | 四川英创力电子科技股份有限公司 | Automatic conveying device for baking circuit board |
| CN115279048B (en) * | 2022-09-26 | 2022-12-16 | 四川英创力电子科技股份有限公司 | Automatic conveying device for baking circuit board |
| CN115623691A (en) * | 2022-11-09 | 2023-01-17 | 四川英创力电子科技股份有限公司 | Printed circuit board feeding device and etching device |
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