CN210365780U

CN210365780U - Turnover mechanism

Info

Publication number: CN210365780U
Application number: CN201921022864.8U
Authority: CN
Inventors: 李集登; 王辉; 余思云
Original assignee: Shenzhen Hongrui Precision Digital Jet Printing Equipment Co ltd
Current assignee: Shenzhen Hongrui Precision Digital Jet Printing Equipment Co ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-04-21
Anticipated expiration: 2029-07-01

Abstract

The utility model discloses a turnover mechanism, include: the turnover mechanism comprises symmetrically arranged mounting bases, wherein at least one side of each mounting base is provided with a turnover driving device; the overturning frame is arranged between the mounting bases and connected with the overturning driving device; and the double-layer rolling device and the clamping device are arranged in the turnover frame, and the clamping device is arranged on the outer side of the double-layer rolling device. The turnover frame arranged between the symmetrical installation bases is driven by the turnover driving device to drive the double-layer rolling device in the turnover frame to turn over, so that the circuit board conveyed in the double-layer rolling device can be turned over.

Description

Turnover mechanism

Technical Field

The utility model relates to a circuit board printing technology field especially relates to a tilting mechanism.

Background

With the rapid development of the information electronic industry, a good market environment is provided for the rapid development of the printed circuit board industry. The continuous increase in the yield of electronic products such as electronic communication equipment, electronic computers, household appliances and the like provides a strong power for the rapid increase in the industry of printed circuit boards.

In order to meet the increasing demand of printed circuit boards, most enterprises develop automatic production lines for circuit board printing for production and processing.

However, in an automated assembly line for performing front-back double-sided printing processing on a circuit board, for a plate turning process after the front-side printing of the circuit board is completed, the plate turning is realized by manually turning the plate or by a manipulator in the current assembly line. However, the manual turnover of the plate increases the number of used workers and increases the labor cost; and adopt the manipulator to turn over the board, because its structure is complicated, need manual intervention manipulator's sucking disc size to the circuit board of equidimension not and cause its inefficiency, need adjust the position of manipulator again in different places, the installation cost is expensive again.

Therefore, a new flap mechanism is needed to overcome the above problems.

Disclosure of Invention

The embodiment of the utility model provides a panel turnover mechanism need not to use the manipulator, can overturn transmission line board fast.

In view of this, a first aspect of the embodiments of the present invention provides a turnover mechanism, including:

the turnover mechanism comprises symmetrically arranged mounting bases, wherein at least one side of each mounting base is provided with a turnover driving device;

the overturning frame is arranged between the mounting bases and connected with the overturning driving device;

and the double-layer rolling device and the clamping device are arranged in the turnover frame, and the clamping device is arranged on the outer side of the double-layer rolling device.

Further, the double-layer scrolling device includes:

the rolling fixing plates are symmetrically arranged, and at least one side of each rolling fixing plate is provided with a rolling driving device;

the first rolling layer and the second rolling layer are arranged between the rolling fixing plates and are connected with the rolling driving device.

Further, the rolling drive device includes:

a first transmission chain connected with the first rolling layer;

the second transmission chain is connected with the second rolling layer;

a rolling drive motor that drives the first drive chain and/or the second drive chain.

Further, the first rolling layer and the second rolling layer are symmetrically arranged, the first rolling layer comprises a plurality of first rolling elements, and the second rolling layer comprises a plurality of second rolling elements;

the tail ends of the first rolling pieces are respectively provided with a first transmission gear, and the tail ends of the second rolling pieces are respectively provided with a second transmission gear;

the first transmission gear is connected with the first transmission chain, and the second transmission gear is connected with the second transmission chain.

Further, if the rolling driving motor drives the first transmission chain or drives the second transmission chain, the rolling driving device includes:

a synchronization assembly disposed between the first drive chain and the second drive chain;

the synchronization component includes:

a first synchronizing gear coaxially connected to the first transmission gear;

the second synchronous gear is coaxially connected with the second transmission gear;

a third synchronizing gear connecting the first synchronizing gear and the second synchronizing gear.

Further, the roll-over frame includes:

the turnover fixing plates are symmetrically arranged;

the overturning beam is arranged between the overturning fixing plates;

the overturning fixing plate is rotatably connected with the mounting base through an overturning shaft, the overturning cross beam is fixedly connected with the rolling fixing plate through a connecting block, and the overturning cross beam is fixed with the clamping device.

Further, the rolling drive device includes:

a rolling driving motor installed on the turning beam;

the driving rod is connected between the overturning fixed plate and the rolling fixed plate;

the driving gear and the driven driving gear are coaxially fixed on the driving rod, and the driven driving gear is connected with the first transmission chain or the second transmission chain;

and a driving chain connecting the driving gear and the rolling driving motor.

Further, the tumble driving apparatus includes:

a turnover driving unit installed at the installation base;

a guide rail fixed in the mounting base;

the linear gear is arranged on the guide rail and is in sliding connection with the guide rail;

the arc gear is arranged in the mounting base and connected with the turnover shaft, and the arc gear is meshed with the linear gear;

wherein the tumble drive unit includes:

the screw rod is connected with the linear gear;

and the turnover driving motor drives the screw rod.

Further, be equipped with at the opposite side installation base relative with upset drive arrangement and pull the device, it includes to pull the device:

the dragging disc is arranged in the mounting base at the other side and is connected with the rotating shaft;

and the length of the dragging chain is related to the perimeter of the dragging disc.

Further, the turnover mechanism further comprises: the equipment comprises a cabinet for mounting the mounting base and an induction device;

a turnover groove is formed in the machine cabinet between the mounting bases to place the turnover frame;

and the induction device is arranged on the material overturning groove on the different side of the installation base.

Further, the turnover mechanism further comprises: a limiting device;

the limiting device comprises a limiting seat and a limiting arm which are matched with each other, the limiting seat is arranged on the opposite side surface between the mounting bases, the limiting arm is arranged in the overturning frame, and the limiting arm and the double-layer rolling device are arranged in parallel;

further, the turnover frame and the double-layer rolling device are perpendicular to each other.

Further, the rolling driving device is arranged on one side close to the overturning driving device.

According to the technical solution provided by the utility model, the embodiment of the utility model has the following advantage:

the turnover mechanism provided by the embodiment of the utility model comprises symmetrically arranged installation bases, and at least one side of each installation base is provided with a turnover driving device; the overturning frame is arranged between the mounting bases and connected with the overturning driving device; and the double-layer rolling device and the clamping device are arranged in the turnover frame, and the clamping device is arranged on the outer side of the double-layer rolling device. The turnover frame arranged between the symmetrical installation bases is driven by the turnover driving device to drive the double-layer rolling device in the turnover frame to turn over, so that the circuit board conveyed in the double-layer rolling device can be turned over.

Drawings

In order to more clearly illustrate embodiments of the present invention or solutions in the prior art, one or more embodiments are exemplarily described below with reference to the accompanying drawings, which do not constitute a limitation of the embodiments, wherein elements having the same reference numerals are denoted by similar elements, unless otherwise specified, and the drawings are not to scale.

Fig. 1 is a schematic view of an embodiment of a turnover mechanism in an embodiment of the present invention;

fig. 2 is an exploded view of the turnover mechanism in the embodiment of the present invention;

fig. 3 is a schematic view of a connecting block in an embodiment of the present invention;

fig. 4 is a schematic view of a rolling driving device in an embodiment of the present invention;

fig. 5 is a schematic view of an overturning driving device in an embodiment of the present invention;

fig. 6 is a cross-sectional view of the turnover mechanism in the embodiment of the present invention;

FIG. 7 is a cross-sectional view of the roll-over shaft in an embodiment of the invention;

fig. 8 is a cross-sectional view of a rolling drive unit according to an embodiment of the present invention;

FIG. 9 is another cross-sectional view of the roll-over shaft in an embodiment of the invention;

FIG. 10 is a schematic view of a dragging device according to an embodiment of the present invention;

fig. 11 is a schematic view of another embodiment of the turnover mechanism in the embodiment of the present invention;

fig. 12 is a schematic view of a limiting device in an embodiment of the present invention.

Description of reference numerals:

a mounting base 11, a mounting base 12;

the overturning device comprises an overturning driving device 20, an overturning driving motor 21, a screw rod 22, a guide rail 23, a linear gear 24, an arc gear 25, an overturning shaft 26 and an overturning shaft 27;

the device comprises a coupler 211, a bearing piece 221, a bearing piece 222, a screw rod locking sleeve 223, a screw rod ball 224, a screw rod fixing piece 225, a sensing piece 226, a limit sensing switch 227, a limit sensing switch 228, a guide rail sliding piece 231, an arc gear mounting seat 261, an angular contact bearing 262, a turnover mounting seat 271 and an angular contact bearing 272;

the overturning device comprises an overturning frame 30, an overturning fixing plate 31, an overturning fixing plate 32, an overturning beam 33, an overturning beam 34 and a connecting block 35;

a motor fixing portion 341, a connecting portion 351, a hanging portion 352, a fixing portion 353;

a double-layer rolling device 40, a rolling fixing plate 41, a rolling fixing plate 42, a first rolling layer 43, a second rolling layer 44 and a rolling driving device 45;

a first transmission gear 431, a first tension gear 432(432a, 432b), a second transmission gear 441, a second tension gear 442(442a, 442b, 442c, 442d), a first transmission chain 451, a second transmission chain 452, a rolling drive motor 453, a drive chain 454, a drive gear 455, a drive gear 455a, a driven drive gear 455b, a synchronizing assembly 456, a first synchronizing gear 456a, a second synchronizing gear 456b, a third synchronizing gear 456c, a drive rod 461;

a clamping device 50;

a pulling device 60, a pulling disc 61, a pulling chain 62;

a cabinet 70, a material turning groove 71 and a sensing device 72;

a limiting device 80, limiting arms 81(81a, 81b) and limiting seats 82(82a, 82 b).

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "mounted," "disposed" or "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "upper," "lower," "inner," "outer," and the like as used herein are used in the specification to refer to orientations or positional relationships illustrated in the drawings, and are used for convenience in describing the present invention and to simplify the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless specifically limited otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

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.

Referring to fig. 1 to 12, an embodiment of a turnover mechanism according to an embodiment of the present invention includes:

the mounting

bases

11 and 12, the turnover driving means 20, the turnover frame 30, the double rolling means 40, and the clamping means 50.

The installation bases 11 and 12 may be two structures symmetrically arranged, at least one side of the installation bases may be provided with a turnover driving device 20, and a turnover frame 30 may be arranged therebetween, and the turnover frame 30 may be connected to the turnover driving device 20 and driven by the turnover driving device 20 to turn over.

The turnover frame 30 may be provided therein with a double-deck rolling device 40 and a clamping device 50, and the clamping device 50 may be provided outside the double-deck rolling device 40, and may be configured to clamp the circuit board by driving the clamping device 50 when the circuit board is conveyed to the double-deck rolling device 40.

Specifically, as shown in fig. 2, the roll frame 30 may include

roll fixing plates

31 and 32 symmetrically disposed and roll

cross members

33 and 34 symmetrically disposed.

The turnover beams 33 and 34 are disposed between the

turnover fixing plates

31 and 32, the turnover beam 33 can be fixedly connected to the same side of the

turnover fixing plates

31 and 32, and the turnover beam 34 can be fixedly connected to the other side of the

turnover fixing plates

31 and 32, i.e., the turnover beams 33 and 34 and the

turnover fixing plates

31 and 32 can form a rectangular structure. Of course, the turnover cross beams 33 and 34 and the

turnover fixing plates

31 and 32 can also be formed into other shapes, and are not limited herein.

The double rolling means 40 may be provided in the roll-over frame 30 to be perpendicular to the roll-over frame 30, and the roll-over frame 30 may fix the double rolling means 40 by one or more pairs of connecting blocks 35. For example: a pair of connecting blocks 35 is provided inside the turning beam 33 to fix the double rolling device 40, or a pair of connecting blocks 35 is provided inside the turning beam 34, or a plurality of pairs of connecting blocks 35 are provided inside the turning beams 33 and 34, respectively. It should be understood that the inner side of the

turning beam

33 or 34 is the two opposite sides of the

turning beam

33 and 34, which are symmetrically arranged, and the embodiment of the present invention uses two pairs of connecting blocks 35 as a preferred embodiment.

The clamping device 50 may be provided on the

turnover beam

33 or 34, and for the sake of simplicity, the clamping device 50 may be provided perpendicular to the double rolling device 40, and the clamping device 50 may be fixed to the inner side of the

turnover beam

33 or 34 or both sides adjacent to the inner side by screws. The number of clamping devices 50 to be secured may be one or more, a plurality of which includes one or more pairs secured to the

turnover beam

33 or 34, respectively. Preferably, the clamping devices 50 are four pairs, respectively fixed to the two lateral faces of the turning beams 33 and 34 adjacent to the inner side.

It should be noted that the clamping end of the clamping device 50 may have a lifting function, and the vertical surface of the double-layer rolling device 40, which is perpendicular to the clamping device 50, may be provided with a suitable gap to adapt the clamping end of the clamping device 50 to extend into the interior of the double-layer rolling device 40 to clamp the circuit board entering the interior of the double-layer rolling device 40.

Referring to fig. 1 and 2, in an embodiment of the present invention, the double-layer rolling device 40 may include rolling fixing

plates

41 and 42, a first rolling layer 43, a second rolling layer 44, and a rolling driving device 45, which are symmetrically disposed.

The symmetrically arranged

roll fixing plates

41 and 42 may correspond to the

roll fixing plates

31 and 32 adjacent to the roll frame 30, respectively, such as the roll fixing plate 41 adjacent to the roll fixing plate 31 and the roll fixing plate 42 adjacent to the roll fixing plate 32. In a preferred embodiment, the

roll fixing plates

41 and 42 are perpendicular to the

roll fixing plates

31 and 32.

The roll-fixing

plates

41 and 42 may be connected to the

roll beam

33 or 34 through the aforementioned connecting block 35.

In an alternative embodiment, as shown in fig. 3, the connecting block 35 may include a connecting portion 351, a hanging portion 352 and a fixing portion 353. The connecting portion 351 can fix the

rolling fixing plates

41 and 42 by providing screw holes thereon to fit screws or bolts, and the fixing portion 353 can be fixed to the

turnover beam

33 or 34. It should be understood that the

turning beam

33 or 34 is a cavity structure, and can be used to fixedly mount the fixing portion 353; openings are formed at both side surfaces so that both ends of the hanging portion 352 can be extended; the connecting portion 351 may be a bending mechanism, and is fixedly connected to both protruding ends of the suspending portion 352 by bending both ends.

The first rolling layer 43 and the second rolling layer 44 may also be symmetrically disposed between the rolling

fixing plates

41 and 42, and a certain distance may be symmetrically disposed between the upper and lower portions of the first rolling layer 43 and the second rolling layer 44 for the transmission of the circuit board between the first rolling layer 43 and the second rolling layer 44. The first rolling layer 43 may have a plurality of first rolling members, the second rolling layer 44 may have a plurality of second rolling members, and the first rolling members and the second rolling members may be in a roller structure, or may be in a roller mechanism, which is not limited herein.

Moreover, a certain distance may be reserved between every two first rolling members and between every two second rolling members for the clamping end of the clamping device 50 to extend into. Of course, if the first rolling member and the second rolling member are configured as rollers, the clamping ends of the clamping device 50 may be aligned with the gap between the rollers on the same axis to reduce the distance between the first rolling member and the second rolling member.

The rolling drive device 45 may be provided in the rolling fixed

plate

41 or 42, or the rolling drive device 45 may be provided in both the rolling fixed

plates

41 and 42.

As shown in fig. 2 and 4, the rolling driving device 45 may include a first driving chain 451 connected to the first rolling layer 43, a second driving chain 452 connected to the second rolling layer 44, and a rolling driving motor 453 driving the first driving chain 451 and/or the second driving chain 452. The present invention is described by taking the example of the second transmission chain 452 driven by the rolling drive motor 453, however, it should not be construed as limiting the present invention. Further, the roll driving motor 453 may preferably be a variable speed torque motor to achieve smooth speed control.

As shown in fig. 4, the rolling drive device 45 is provided on the rolling fixing plate 42 side. The ends of the first rolling members may be respectively provided with first transmission gears 431, the ends of the second rolling members may be respectively provided with second transmission gears 441, the first transmission gears 431 may be connected with the first transmission chain 451, and the second transmission gears 441 may be connected with the second transmission chain 452.

The rolling driving motor 453 can drive the driving gear 455 fixed on the rolling fixing plate 42 through the driving chain 454, and further drive the second transmission chain 452 to run through the driving gear 455, so as to drive the second rolling elements in the second rolling layer 44 to run.

It should be noted that, in order to simplify the structure of the rolling drive device 45, the rolling drive motor 453 may be installed on the outer side of the

turning beam

33 or 34, that is, the side of the

turning beam

33 or 34 opposite to the inner side. As shown in fig. 4, the roll driving motor 453 is attached to the outside of the turning beam 34, and the roll driving motor 453 is fixed by a motor fixing portion 341 provided on the outside of the turning beam 34. It will be appreciated that the flip beam 34 may be provided with chain holes through its inner and outer sides, respectively, for the passage of the drive chain 454.

An inner side surface of the first transmission chain 451 is disposed around the first transmission gear 431, an inner side surface of the second transmission chain 452 is disposed around the second transmission gear 441 and the driving gear 455, wherein first tensioning gears 432 may be disposed at intervals between the first transmission gears 431, for example, one first tensioning gear 432 is disposed every two first transmission gears 431, and the first tensioning gear 432 contacts with an outer side surface of the first transmission chain 451; the second driving gears 441 may also be provided with second tensioning gears 442 at intervals, for example, one second tensioning gear 442 is provided every two second driving gears 441, and the second tensioning gear 442 contacts with the outer side surface of the second driving chain 452.

First tensioning gears 432a and 432b different from the plane of the first transmission gear 431 may be provided at the fore and aft ends of the first transmission chain 451, and the first tensioning gears 432a and 432b are provided inside the first transmission chain 451 to contact the inner side surface of the first transmission chain 451. Second tension gears 442a and 442b different from the plane of the second transmission gear 441 may be disposed at both ends of the second transmission chain 452, and the second tension gears 442a and 442b are disposed inside the second transmission chain 452 to be in contact with the inner side of the second transmission chain 452.

Second tension gears 442c and 442d may be further provided at both sides of the driving gear 455, and the second tension gears 442c and 442d are in contact with the outer side surface of the second transmission chain 452.

In a preferred embodiment, as shown in fig. 4, in order to realize the synchronous operation of the first rolling layer 43 and the second rolling layer 44, a synchronous assembly 456 connecting the first transmission chain 451 and the second transmission chain 452 may be provided in the rolling driving device 45.

The synchronization component 456 may include: a first synchronizing gear 456a coaxially connected with a first transmission gear 431, a second synchronizing gear 456b coaxially connected with a second transmission gear 441, and a third synchronizing gear 456c connecting the first and second synchronizing gears 456a and 456 b. The third synchronizing gear 456c is fixed to the roll fixing plate 42 and is engaged with the first synchronizing gear 456a and the second synchronizing gear 456b, respectively. It should be understood that the first and second synchronizing gears 456a and 456b have the same number of teeth to ensure the same rotation speed and achieve synchronous rotation.

Referring to fig. 2 and 5, the tilting driving device 20 may be disposed on the mounting base 11, or may be disposed on the mounting base 12, or may be disposed in both the mounting

bases

11 and 12 according to design requirements, so as to provide a larger tilting torque. In the embodiment of the present invention, the installation base 12 is taken as an example, and the turnover driving device 20 is installed on a side close to the rolling driving device 45, but the present invention should not be limited thereto.

As shown in fig. 5, the tumble driving apparatus 20 may include a tumble driving motor 21, a lead screw 22, a guide rail 23, a linear gear 24, and an arc gear 25.

Wherein, the turnover driving motor 21 can be disposed outside the mounting base 12, the lead screw 22 can be fixed on the inner wall of the mounting base 12 through the bearing

pieces

221 and 222 at both ends, and one end of the lead screw 22 is connected with the turnover driving motor 21 (for example, the connection is realized through the coupling 211), and the other end of the lead screw 22 can be provided with a lead screw locking sleeve 223 and lock the lead screw 22 and the bearing piece 222, so as to prevent the displacement of the lead screw 22.

The guide rail 23 may be fixed on the inner wall of the mounting base 12 in parallel with the lead screw 22, and the guide rail 23 may be a linear guide rail which may be fixedly connected to the linear gear 24 by a rail slider 231 so that the linear gear 24 may be linearly slid along the guide rail 23.

Further, the rail slider 231 may be connected to a screw ball 224 provided on the screw 22 through a screw fixing member 225, so that the linear gear 24 may be driven to move linearly by the screw ball 224, and the screw ball 224 is driven by the reverse driving motor 21 to move linearly along the shaft of the screw 22.

The circular arc gear 25 may be connected to a tilt fixing plate 32 of the tilt frame 30 through the inner wall of the mounting base 12 by a tilt shaft 26. The circular arc gear 25 converts the amount of rectilinear motion of the rectilinear gear 24 into angular motion of rotation, thereby rotating the inversion frame 30.

It is understood that a sensing piece 226 may be provided on the screw ball 224, and limit sensing switches 227 and 228 may be installed at the other side in parallel with the screw 22, and the spacing distance of the limit sensing switches 227 and 228 may be related to the circumference of the circular gear 25, for example, equal to the circumference of the circular gear 25.

Of course, the embodiment of the present invention can also adopt other turnover driving manners to drive the turnover of the turnover frame 30, but in the above embodiment, the accurate control of the turnover frame 30 can be realized by driving the screw rod 22 to drive the linear gear 24 to rotate the arc gear 25 through the turnover driving motor 21 (e.g. servo motor), and this embodiment is the preferred embodiment of the present invention.

Referring to fig. 6 to 9, in the sectional views of the turnover mechanism according to the embodiment of the present invention, in fig. 6, a section a of a connection portion between the mounting base 12 and the turnover frame 30 can be seen in fig. 7, a section B of a structure of the rolling driving device 45 connecting the rolling driving motor 453 and the driving gear 455 can be seen in fig. 8, and a section C of a connection portion between the mounting base 11 and the turnover frame 30 can be seen in fig. 9.

As shown in fig. 2 and 7, the tumble shaft 26 may include a circular arc gear mounting seat 261 fixed to the tumble fixing plate 32, and an angular contact bearing 262 disposed in an inner wall of the mounting base 12, and optionally, two angular contact bearings 262 may be provided. The circular-arc gear 25 may be fixed to the circular-arc gear mount 261 by screws.

As shown in fig. 8, the driving gear 455 may be connected between the roll fixing plate 42 and the roll fixing plate 32 by a driving lever 461, and the driving gear 455 is divided into a driving gear 455a and a driven driving gear 455b, the driving gear 455a being disposed at a side close to the roll fixing plate 32 and the driven driving gear 455b being disposed at a side close to the roll fixing plate 42. And the driving gear 455a is connected to the rolling driving motor 453 through a driving chain 454 and the driven driving gear 455b is connected to the second transmission chain 452.

As shown in fig. 2 and fig. 9, the fixed inversion plate 31 and the mounting base 11 may be rotatably connected by a tilting shaft 27, the tilting shaft 27 may include a tilting mounting seat 271 disposed on the fixed inversion plate 31 and two angular bearings 272 disposed on an inner wall of the mounting base 11, and the two angular bearings 272 may be provided.

In an alternative embodiment, as shown in fig. 9, in the embodiment shown in fig. 10, the turnover mechanism may further include a dragging device 60, the dragging device 60 may be disposed in the mounting base 11 opposite to the turnover driving device 20, and it may include a dragging plate 61 connected to the turnover shaft 27, and a dragging chain 62 having one end fixed to the dragging plate 61 and the other end fixed in the mounting base 11.

The dragging plate 61 can be fixed with the overturning mounting seat 271 in the overturning fixing plate 31 through screws, the rotation of the dragging plate 61 is driven when the overturning frame 30 overturns, meanwhile, the dragging plate 61 drags the dragging chain 62 to rotate, when a preset angle is rotated, the dragging plate 61 is dragged by the dragging chain 62 and does not rotate any more, and therefore the overturning frame 30 can be further prevented from overturning excessively through a mechanical mode. It will be appreciated that the length of the rip chain 62 is related to the circumference of the rip tray 61, and preferably may be equal to the circumference of the rip tray 61.

On the basis of the embodiments shown in fig. 1 to fig. 10, please refer to fig. 11, another embodiment of the turnover mechanism in the embodiment of the present invention may include:

the cabinet 70, the aforementioned tilting mechanism may be installed on the top of the cabinet 70, and the cabinet 70 may be provided with a material overturning groove 71 on the top, that is, a material overturning groove 71 may be provided between the symmetrically arranged mounting

bases

11 and 12, and the material overturning groove 71 may form a material overturning space above the material overturning groove for the material overturning frame 30 to drive the double-layer rolling device 40 to overturn.

And a sensing device 72 may be provided at one side of the material turning groove 71, and the sensing device 72 may be provided at a side different from the side where the

bases

11 and 12 are installed. In the embodiment of the present invention, one side of the induction device 72 is used as a feeding side, and the circuit board is conveyed to the double-layer rolling device 40 in the turnover frame 30 from the feeding side. Of course, a sensing device 72 may be provided at the discharge side opposite the feed side to detect the output of the circuit board.

The cabinet 70 may further be provided with an operation module, a grating sensor, etc., which are well known in the art and will not be described herein.

As shown in fig. 12, one or more pairs of position-limiting devices 80 may be further provided in the turnover mechanism, including a position-limiting arm 81 and a position-limiting seat 82, which are engaged with each other, so as to avoid the turnover frame 30 from being over-turned, and a preferred embodiment thereof is: two pairs of position-limiting devices 80 are respectively arranged on the installation bases 11 and 12, taking the installation base 11 side as an example, a position-limiting seat 82a and a position-limiting seat 82b are arranged on the vertical side of the installation base 11, and position-limiting

arms

81a and 81b are arranged at the junction of the turnover cross beam 33(34) and the turnover fixing plate 31 (32).

When the roll-over frame 30 is vertical and the double-layer rolling device 40 is horizontal perpendicular to the roll-over frame 30 (not shown in the figure), the roll-over frame is in an initial state, the limiting arm 81a is in contact with the limiting seat 82a, and the limiting arm 81b is not in contact with the limiting seat 82 b. After the overturning by 180 degrees, the limiting arm 81b is in contact with the limiting seat 82b, and the limiting arm 81a is separated from the limiting seat 82a at the moment, so that the overturning driving motor 21 can be prevented from driving the overturning frame 30 to overturn by more than 180 degrees in a mechanical abutting limiting mode, and the outer edge of the end part of the limiting seat, which is close to the limiting arm, is chamfered, so that the abrasion is prevented.

It should be understood that the chain described in the embodiments of the present invention may also be other transmission devices such as a belt, and the above embodiments are described by using a chain, but should not be construed as limiting the embodiments of the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A turnover mechanism, comprising:

2. The canting mechanism of claim 1 wherein the double layer rolling mechanism comprises:

3. A turnover mechanism as set forth in claim 2 in which the rolling drive includes:

a first transmission chain connected with the first rolling layer;

the second transmission chain is connected with the second rolling layer;

4. The turnover mechanism of claim 3, wherein the first rolling layer is symmetrically disposed with respect to the second rolling layer, the first rolling layer includes a plurality of first rolling members, and the second rolling layer includes a plurality of second rolling members;

5. The turnover mechanism of claim 4, wherein if the rolling drive motor drives the first transmission chain or drives the second transmission chain, the rolling drive device comprises:

the synchronization component includes:

a first synchronizing gear coaxially connected to the first transmission gear;

6. The turnover mechanism of any one of claims 2-5, wherein the turnover frame includes:

the turnover fixing plates are symmetrically arranged;

the overturning beam is arranged between the overturning fixing plates;

7. The turnover mechanism of claim 6, wherein the rolling drive mechanism includes:

a rolling driving motor installed on the turning beam;

and a driving chain connecting the driving gear and the rolling driving motor.

8. The flipping mechanism of claim 6, wherein the flipping drive comprises:

a turnover driving unit installed at the installation base;

a guide rail fixed in the mounting base;

wherein the tumble drive unit includes:

the screw rod is connected with the linear gear;

and the turnover driving motor drives the screw rod.

9. The turnover mechanism of claim 8, wherein a pulling device is provided at the other side of the mounting base opposite to the turnover driving device, and the pulling device comprises:

the dragging plate is arranged in the other side mounting base and connected with the overturning shaft;

10. The canting mechanism of claim 1 further comprising: the equipment comprises a cabinet for mounting the mounting base and an induction device;

the sensing device is arranged on the material overturning groove at the different side of the mounting base.