CN215046027U - Blanking device - Google Patents

Abstract

The utility model discloses an unloader, unloader includes: an installation table; the conveying mechanism is arranged on the mounting table and used for conveying the PCB along a first direction; the telescopic mechanism is arranged on the mounting table in a vertically telescopic manner and is used for jacking or replacing the PCB to the conveying mechanism; and the centering mechanism can adjust the position of the PCB in the second direction when the telescopic mechanism pushes the PCB away from the conveying mechanism. According to the utility model discloses an unloader can make the pin dislocation on the PCB board that adjacent syntropy was placed, and then effectively avoid on the PCB board that the convex part of pin is relative for the PCB board piles up closely, and the space utilizes rationally, is favorable to improving the reliability of stacking in batches of PCB board.

Description

Blanking device

Technical Field

The utility model belongs to the technical field of automation equipment technique and specifically relates to a unloader is related to.

Background

In the correlation technique, the PCB with the pins adopts a centering mode when being folded and stacked, the stacking interval is larger, and the risk of collapse is existed. Therefore, how to reduce the stacking distance of the PCB and reduce the risk of collapse is a technical problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an unloader can make the pin dislocation on the PCB board that adjacent syntropy was placed, and then effectively avoid on the PCB board that the convex part of pin is relative for the PCB board piles up closely, and the space utilization is reasonable, is favorable to improving the reliability of stacking in batches of PCB board.

According to the utility model discloses unloader, include: an installation table; the conveying mechanism is arranged on the mounting table and used for conveying the PCB along a first direction; the telescopic mechanism is arranged on the mounting table in a vertically telescopic manner and is used for jacking or replacing the PCB board to the conveying mechanism; and the centering mechanism can adjust the position of the PCB in the second direction when the telescopic mechanism pushes the PCB away from the conveying mechanism.

According to the utility model discloses unloader through setting up telescopic machanism and the mechanism of returning to the middle, when stacking the PCB board, can realize adjusting the position of PCB board in the ascending position of second side to make the pin dislocation on the PCB board that adjacent syntropy was placed, and then effectively avoid the convex part of pin on the PCB board relative, make the PCB board pile closely, the space utilization is reasonable, is favorable to stacking in batches of PCB board.

In some embodiments of the present invention, the centering mechanism comprises: the first centering assembly comprises a first driving module and a first limiting component, the first driving module is connected with the mounting table, and the first driving module is used for driving the first limiting component to move in a second direction; the second centering assembly comprises a second driving module and a second limiting component, the second driving module is connected with the mounting table and used for driving the second limiting component to move in a second direction, the first driving module and the second driving module are independently controlled, and the first limiting component and the second limiting component are suitable for being matched with two sides of the PCB in the second direction.

In some embodiments of the present invention, the first driving module comprises: the two first rotating wheels are arranged at intervals in the second direction and are rotatably connected with the mounting table; one end of the first synchronous belt is sleeved on the outer peripheral side of one of the first rotating wheels, the other end of the first synchronous belt is sleeved on the outer peripheral side of the other first rotating wheel, and the first limiting part is connected with the first synchronous belt and is positioned between the two first rotating wheels; the first driving motor is arranged on the mounting table and used for driving one of the first rotating wheels to rotate so as to enable the first synchronous belt to drive the first limiting part to move along a second direction; the first limiting part is provided with a first induction element, the mounting table is provided with a plurality of second induction elements used for inducing the first induction element, and the second induction elements are arranged at intervals in the second direction.

In some embodiments of the present invention, the second driving module comprises: the two second rotating wheels are arranged at intervals in the second direction and are rotatably connected with the mounting table; one end of the second synchronous belt is sleeved on the outer peripheral side of one of the second rotating wheels, the other end of the second synchronous belt is sleeved on the outer peripheral side of the other second rotating wheel, and the second limiting part is connected with the second synchronous belt and is positioned between the two second rotating wheels; the second driving motor is arranged on the mounting table and used for driving one of the second rotating wheels to rotate so as to enable the second synchronous belt to drive the second limiting component to move along a second direction; the second limiting part is provided with a third induction element, the mounting table is provided with a plurality of fourth induction elements used for inducing the third induction element, and the fourth induction elements are arranged at intervals in the second direction.

In some embodiments of the utility model, the telescopic machanism includes flexible driving piece and backup pad, flexible driving piece is located the mount table, flexible driving piece is used for the drive the backup pad reciprocates, the top of backup pad is equipped with first gyro wheel, first gyro wheel be suitable for with the PCB board roll fit.

In some embodiments of the present invention, the supporting plate includes a bottom plate and a plurality of supporting sub-plates disposed on the bottom plate, the supporting sub-plates are spaced apart from each other in the first direction, and each supporting sub-plate is provided with one or more first rollers spaced apart from each other in the second direction.

In some embodiments of the present invention, the blanking device further comprises: the turnover mechanism is positioned at the board inlet end of the conveying mechanism in the conveying direction of the PCB, the turnover mechanism comprises a frame, a turnover driving module, a turnover frame and a follow-up telescopic piece, the turnover driving module is arranged on the machine, the turnover frame is rotatably connected with the rack, the turnover driving module is used for driving the turnover frame to rotate between a first limit position and a second limit position, the follow-up telescopic piece is suitable for pressing the PCB, the frame is provided with a first detection element and a second detection element, the first detection element is used for detecting whether the roll-over stand is at a first limit position, the second detection element is used for detecting whether the roll-over stand is at a second limit position, and a third detection element is arranged on the roll-over stand and used for detecting whether the roll-over stand is positioned at the original point.

In some embodiments of the present invention, the blanking device further comprises: rotary mechanism, rotary mechanism locates the mount table on the direction of delivery of PCB board, rotary mechanism is located the mechanism's of returning to the middle advance board end, rotary mechanism includes flexible module and rotating module, flexible module can be established with stretching out and drawing back from top to bottom the mount table with between the rotating module, rotating module has rotary drive portion and revolving stage, rotary drive portion is used for the drive the revolving stage is rotatory the revolving stage is higher than during the transport component, the revolving stage drives the PCB board rotates around first predetermined axis, first predetermined axis extends at upper and lower direction.

In some embodiments of the present invention, the blanking device further comprises: the turnover plate receiving mechanism is positioned at a plate outlet end of the conveying mechanism and comprises a turnover driving part, a material rack and a material returning part, the turnover driving part is arranged on the mounting table and is used for driving the material rack to rotate around a second preset axis, the second preset axis extends in the second direction, and the material returning part is arranged on the mounting table and is telescopic in the first direction; the blanking storage mechanism is located at the plate outlet end of the mounting table and comprises a conveying part and a receiving vehicle, the receiving vehicle is arranged on the conveying part, and the conveying part is used for driving the receiving vehicle to move in a first direction.

The utility model discloses an in some embodiments, the work or material rest includes first section, second section and third section, first section with third section parallel arrangement, the second section is connected the bottom of first section with between the bottom of third section, first section the second section with inject the holding tank between the third section, the length of first section is greater than the length of third section, the third section be suitable for with PCB complex second gyro wheel.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic view of a partial structure of a blanking device according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is a schematic structural view of a telescoping mechanism and a centering mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a centering mechanism according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a mounting base according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a turnover mechanism according to an embodiment of the present invention;

FIG. 7 is an enlarged schematic view at B in FIG. 6;

fig. 8 is a schematic structural view of the roll-over stand and the follower expansion member according to an embodiment of the present invention;

fig. 9 is an assembly schematic of a mounting table, a conveying mechanism, a telescoping mechanism, a centering mechanism, a rotating mechanism, and a flip board receiving mechanism according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a turnover plate-collecting mechanism according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a material return component according to an embodiment of the present invention;

fig. 12 is a schematic view of a work flow of a blanking device according to an embodiment of the present invention;

fig. 13 is a front view of two PCB board crosses stacked in accordance with an embodiment of the present invention;

fig. 14 is a schematic side view of a stack of four PCB boards according to an embodiment of the invention.

Reference numerals:

the blanking device 100:

a mounting table 10; (ii) a

A conveying mechanism 20; a conveyor belt 21;

a telescoping mechanism 30; a telescopic drive member 31; a support plate 32; a base plate 321; a support daughter board 322; a first roller 33; a guide post 34; a guide sleeve 35; a fixed plate 36;

a centering mechanism 40;

a first centering component 41; a first driving module 411; a first rotating wheel 4111; a first synchronization belt 4112; a first drive motor 4113; a first stopper part 412; a first sensing element 4121; a first holder 4122; a first push rod 4123; a first clamping plate 413;

a second centering component 42; a second driving module 421; a second pulley 4211; a second timing belt 4212; a second drive motor 4213; a second limiting member 422; a third inductive element 4221; a second fixed seat 4222; a second push rod 4223; a second clamping plate 423;

a guide rod 43; a coupling 431; mounting side plates 44; a mounting bar 45; a second inductive element 451; a fourth inductive element 452; a mounting seat 46; a mounting base plate 461; a chute 4611; a mounting plate 462; a fastening plate 463; a tension bolt 464;

a turnover mechanism 50;

a frame 51; the first detection element 511; a second detection element 512; an inlet receiving assembly 513; an outlet receptacle assembly 514; the test mating plate 515; an aperture 5151; a first buffer 516; a second buffer 517;

a tumble drive module 52; a roll-over stand 53; a first roller assembly 531; a second roller assembly 532; the third detection element 533; an abutment tab 534; a drive shaft 535; a follower shaft 536; a follower telescoping member 54; a conveyance drive motor 55; an in-out sensor 56; a driving shaft supporting block 57; a follower shaft support block 58;

a rotating mechanism 60; a telescoping module 61; a rotation module 62; a rotation driving section 621; a rotating table 622;

a plate turning and collecting mechanism 70; the flip drive member 71; a driving cylinder 711; a drive cylinder 7111; a telescopic drive rod 7112; a support base 712; a flip shaft 713; a cylinder mounting plate 714; a cylinder connecting plate 715; a rotation connection plate 716;

a material shelf 72; a first section 721; a second segment 722; a third segment 723; an accommodating groove 724; a second roller 725;

a material return part 73; a guide rod cylinder 731; a rod cylinder attachment plate 732; a push plate 733; a photosensor 734; a trench photo 735; a linear bearing 736; a compression spring 737; a sensor pad 738;

a blanking storage mechanism 80; a conveying member 81; a material receiving cart 82; a carrier section 831; an anti-slip layer 8311; a ramp section 832;

a PCB board 200; the pins 201.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

Referring to fig. 1, a blanking device 100 according to an embodiment of the present invention may include a mounting table 10, a conveying mechanism 20, a telescoping mechanism 30, a centering mechanism 40, and a blanking storage mechanism 80.

Referring to fig. 1, a conveying mechanism 20 is provided at the mounting station 10, the conveying mechanism 20 is used for conveying the PCB board 200 in a first direction (refer to direction F1 in fig. 1), for example, the conveying mechanism 20 may include a conveying wheel and a conveying belt 21, the processed PCB board 200 may be transferred onto the conveying belt 21, and the conveying belt 21 drives the PCB board 200 to move in the first direction under the driving of the conveying wheel. Of course, the conveying mechanism 20 may also use conveying rollers or conveying rollers to convey the PCB.

Referring to fig. 1 and 3, a telescoping mechanism 30 is telescopically provided up and down on the mounting table 10, and the telescoping mechanism 30 is used for lifting or replacing the PCB 200 to or from the conveying mechanism 20. For example, as shown in fig. 1, the conveying mechanism 20 has two conveying belts 21 spaced apart in the second direction (refer to a direction F2 in fig. 1), the telescopic mechanism 30 is located between the two conveying belts 21, the telescopic mechanism 30 can lift the PCB 200 away from the conveying mechanism 20 when the telescopic mechanism 30 is extended upward to be higher than the conveying belts 21, and the telescopic mechanism 30 can put the PCB 200 back to the conveying mechanism 20 when the telescopic mechanism 30 is retracted downward to be lower than the conveying belts 21.

Referring to fig. 3, the centering mechanism 40 can adjust the position of the PCB 200 in the second direction when the telescoping mechanism 30 lifts the PCB 200 away from the conveying mechanism 20. For example, when the conveyor belt 21 conveys the PCB 200 to the position above the telescopic mechanism 30, if the position of the PCB 200 in the second direction needs to be adjusted, the telescopic mechanism 30 pushes the PCB 200 away from the conveyor belt 21, and the centering mechanism 40 adjusts the position of the PCB 200 in the second direction; if it is not necessary to adjust the position of the PCB 200 in the second direction, it is not necessary to control the retracting mechanism 30 to lift the PCB 200 away from the conveyor belt 21.

It can be understood, according to the utility model discloses unloader 100 through setting up telescopic machanism 30 and mechanism 40 of returning to the middle, when stacking PCB board 200, can realize adjusting PCB board 200 the ascending position of second side to make the pin dislocation on the PCB board 200 that adjacent syntropy was placed, and then it is relative to effectively avoid the convex part of pin 201 on PCB board 200, make PCB board 200 pile up closely, and the space utilization is reasonable, is favorable to stacking in batches of PCB board.

The utility model discloses an in some examples, be equipped with the cover body (not shown) on the mount table 10, inject accommodation space between the cover body and the mount table 10, conveying mechanism 20, telescopic machanism 30 and mechanism 40 of returning to the centre all set up in accommodation space, can understand, through setting up the cover body, and with conveying mechanism 20, telescopic machanism 30 and mechanism 40 of returning to the centre all set up in the cover body, be favorable to reducing the harmful effects of debris such as external dust to the mechanism in the accommodation space, guarantee the reliability of unloader 100 work.

In some embodiments of the present invention, as shown in fig. 3 and 4, the centering mechanism 40 includes a first centering assembly 41 and a second centering assembly 42, the first centering assembly 41 includes a first driving module 411 and a first limiting member 412, the first driving module 411 is connected to the mounting table 10, the first driving module 411 is used for driving the first limiting member 412 to move in the second direction (refer to the F2 direction in fig. 3), the second centering assembly 42 includes a second driving module 421 and a second limiting member 422, the second driving module 421 is connected to the mounting table 10, the second driving module 421 is used for driving the second limiting member 422 to move in the second direction, the first driving module 411 and the second driving module 421 are independently controlled, and the first limiting member 412 and the second limiting member 422 are adapted to cooperate with two sides of the PCB 200 in the second direction. It can be understood that, by enabling the first driving module 411 and the second driving module 421 to be controlled independently, the first limiting part 412 and the second limiting part 422 are matched on two sides of the PCB 200 to realize offset adjustment of the centering position of the PCB 200, so that the operation reliability is high, and reliable adjustment of the position of the PCB 200 is facilitated.

In some embodiments of the present invention, referring to fig. 4, the first driving module 411 includes: two first bull wheels 4111, first synchronous belt 4112 and first driving motor 4113, two first bull wheels 4111 are spaced apart in the second direction (refer to the direction F2), first bull wheel 4111 rotationally links to each other with mounting table 10, a pot head of first synchronous belt 4112 is established on the periphery side of one of them first bull wheel 4111, another pot head of first synchronous belt 4112 is established on the periphery side of another first bull wheel 4111, first spacing member 412 links to each other with first synchronous belt 4112 and is located between two first bull wheels 4111, first driving motor 4113 is located mounting table 10, first driving motor 4113 is used for driving one of them first bull wheel 4111 to rotate, so that first synchronous belt 4112 drives first spacing member 412 to move along the second direction. It can be understood that there is a signal transmission between the first driving motor 4113 and the control device of the blanking device 100, so as to facilitate the realization of intelligent control over the first centering assembly 41, and the first driving module 411 has a simple structure, low cost and high operational reliability.

In some alternative embodiments of the present invention, referring to fig. 4, the first limiting member 412 is provided with a first sensing element 4121, the mounting table 10 is provided with a plurality of second sensing elements 451 for sensing the first sensing element 4121, and the plurality of second sensing elements 451 are spaced apart in the second direction (refer to the direction F2). It can be appreciated that the second sensing elements 451 spaced apart in the second direction can detect the position of the first sensing element 4121, so as to determine the position of the first limiting member 412 in the second direction, thereby facilitating reliable control of the position of the first limiting member 412 and improving the reliability of the operation of the first centering assembly 41.

In some embodiments of the present invention, referring to fig. 4, the second driving module 421 includes: the two second rotating wheels 4211 are arranged at intervals in a second direction, the second rotating wheels 4211 are rotatably connected with the mounting table 10, one end of each second synchronous belt 4212 is sleeved on the outer peripheral side of one second rotating wheel 4211, the other end of each second synchronous belt 4212 is sleeved on the outer peripheral side of the other second rotating wheel 4211, the second limiting component 422 is connected with the second synchronous belt 4212 and located between the two second rotating wheels 4211, the second driving motor 4213 is arranged on the mounting table 10, and the second driving motor 4213 is used for driving one second rotating wheel 4211 to rotate so that the second synchronous belt 4212 drives the second limiting component 422 to move along the second direction. It can be understood that there is signal transmission between the second driving motor 4213 and the control device of the blanking device 100, so as to facilitate the realization of intelligent control over the second centering assembly 42, and the second driving module 421 has a simple structure, low cost and high operational reliability.

In some optional embodiments of the present invention, referring to fig. 4, the second limiting member 422 is provided with a third sensing element 4221, the mounting table 10 is provided with a plurality of fourth sensing elements 452 for sensing the third sensing element 4221, and the plurality of fourth sensing elements 452 are spaced apart in the second direction. It can be understood that the fourth sensing element 452 spaced apart in the second direction may detect the position of the third sensing element 4221, so as to determine the position of the second limiting component 422 in the second direction, thereby facilitating reliable control over the position of the second limiting component 422, and facilitating improvement of the reliability of the operation of the second centering assembly 42.

In some examples of the present invention, as shown in fig. 5, at least one of the first rotating wheel 4111 and the second rotating wheel 4211 is connected to the mounting table 10 through a mounting seat 46, the mounting seat 46 includes a mounting base plate 461, a mounting plate 462, a fastening plate 463 and a tensioning bolt 464, a sliding slot 4611 is provided on the mounting base plate 461, the mounting plate 462 is slidably fitted to the sliding slot 4611, at least one of the first rotating wheel 4111 and the second rotating wheel 4211 is rotatably connected to the mounting plate 462, the fastening plate 463 is connected to one side of the mounting base plate 461, the tensioning bolt 464 passes through the fastening plate 463 to be threadedly fitted to the mounting plate 462, it can be understood that the position of the rotating wheel provided on the mounting seat 46 can be adjusted by screwing in and out the tensioning bolt 464, thereby realizing tensioning or loosening of the corresponding first synchronous belt 4112 or second synchronous belt 4212.

In some embodiments of the present invention, referring to fig. 3 and 4, the centering mechanism 40 further includes a guiding rod 43, the guiding rod 43 is disposed on the mounting platform 10, the guiding rod 43 extends along the second direction, the first limiting member 412 and the second limiting member 422 are spaced apart from each other and disposed on the guiding rod 43, and the first limiting member 412 and the second limiting member 422 are slidably engaged with the guiding rod 43, respectively. For example, as shown in fig. 3 and 4, the centering mechanism 40 further includes two mounting side plates 44 and a mounting bar 45, the two mounting side plates 44 are spaced apart from each other in the second direction and are connected to the mounting table 10, the mounting bar 45 is connected between the two mounting side plates 44 and is connected to the mounting table in the second direction, the second sensing element 451 and the fourth sensing element 452 are respectively mounted on the mounting bar 45, the number of the guide rods 43 is two, the two guide rods 43 are connected between the two mounting side plates 44 and are spaced apart from each other in the first direction, and the first limiting member 412 and the second limiting member 422 are respectively slidably engaged with the guide rods 43. Therefore, the reliability of the movement of the first limiting part 412 and the second limiting part 422 in the second direction can be ensured, and the reliability of the operation of the centering mechanism 40 can be ensured. Alternatively, the guide rod 43 may comprise two segments, and the two segments 43 are connected by a coupling 431.

In some specific examples, referring to fig. 3 and 4, the first limiting member 412 includes a first fixing seat 4122 and a first push rod 4123, the first push rod 4123 is plural and is disposed on the first fixing seat 4122 at a distance in a first direction, both ends of the first fixing seat 4122 are slidably engaged with the two guide bars 43, respectively, a bottom of the first fixing seat 4122 is connected to the first timing belt 4112 through a first clamping plate 413, the second limiting member includes a second fixing seat 4222 and a second push rod 4223, the second push rod 4223 is plural and is disposed on the second fixing seat 4222 at a distance in a second direction, both ends of the second fixing seat 4222 are slidably engaged with the two guide bars 43, respectively, and a bottom of the second fixing seat 4222 is connected to the second timing belt 4212 through a second clamping plate 423.

In some embodiments of the present invention, referring to fig. 3, the telescopic mechanism 30 includes a telescopic driving member 31 and a supporting plate 32, the telescopic driving member 31 is disposed on the mounting platform 10, the telescopic driving member 31 is used for driving the supporting plate 32 to move up and down, a first roller 33 is disposed at the top of the supporting plate 32, and the first roller 33 is suitable for being in rolling fit with the PCB board 200. For example, the first roller 33 may be an encapsulated roller, and it is understood that when the centering mechanism 40 adjusts the position of the PCB 200 in the second direction, the first roller 33 is in rolling fit with the PCB 200, which is beneficial to reduce the friction between the PCB 200 and the supporting plate 32, and is convenient to adjust the position of the PCB 200.

In some optional embodiments of the present invention, referring to fig. 3, the supporting plate 32 includes a bottom plate 321 and a plurality of supporting sub-plates 322 disposed on the bottom plate 321, the supporting sub-plates 322 are spaced apart in a first direction, and each supporting sub-plate 322 is provided with one or more first rollers 33 spaced apart in a second direction. Therefore, by arranging the plurality of support sub-boards 322 and arranging one or more first rollers 33 on each support sub-board 322, the telescopic mechanism 30 can support the PCB 200 reliably and improve the working reliability of the blanking device 100 in the process of pushing or returning the PCB 200 to the conveying mechanism 20. In alternative embodiments, the support sub-board 322 may have a flat plate structure with a rectangular shape, a polygonal shape, or a semicircular shape, and one or more first rollers 33 are provided on the top of the support sub-board 322.

In some examples, referring to fig. 3, the telescopic driving member 31 may be a lifting cylinder, the telescopic mechanism 30 further includes a guide pillar 34 and a guide sleeve 35, the guide sleeve 35 is connected to the mounting table 10 through a fixing plate 36, the guide pillar 34 is slidably engaged with the guide sleeve 35, and a top of the guide pillar 34 is connected to the bottom plate 321.

In some embodiments of the present invention, referring to fig. 6, the blanking apparatus 100 further includes: a turnover mechanism 50, the turnover mechanism 50 being located at a board feeding end of the conveying mechanism 20 in a conveying direction of the PCB board 200, the turnover mechanism 50 including a frame 51, a turnover driving module 52, a turnover frame 53 and a follow-up expansion member 54, the turnover driving module 52 being located at the frame 51, the turnover frame 53 being rotatably connected to the frame 51, the turnover driving module 52 being configured to drive the turnover frame 53 to rotate between a first limit and a second limit, a rotation center line of the turnover frame 53 being extendable in a second direction (refer to a direction F2 in fig. 6), the turnover frame 53 being provided therein with a first roller assembly 531 and a second roller assembly 532 which are spaced apart from each other, a conveying space being defined between the first roller assembly 531 and the second roller assembly 532, the first roller assembly 531 and the second roller assembly 532 cooperating to move the PCB board 200 in the first direction (refer to a direction F1 in fig. 6), the follow-up expansion member 54 being located at the turnover frame 53, after the PCB board 200 completely enters the transfer space, the follower expansion 54 serves to press the PCB board 200.

For example, as shown in fig. 6 to 8, the roll stand 53 has a driving shaft 535 and a follower shaft 536 at both sides thereof, a driving shaft supporting block 57 and a follower shaft supporting block 58 are provided on the frame 51, the driving shaft 535 is connected to the roll driving module 52 through the driving shaft supporting block 57, the follower shaft 536 is rotatably connected to the follower shaft supporting block 58, and the follower telescopic member 54 may include a plurality of cylinders each telescopic for pressing the PCB board 200.

It can be understood that, when the roll-over stand 53 is at the first limit, the included angle between the roll-over stand 53 and the horizontal plane is the first preset included angle, for example, the first preset included angle may take any value from-5 ° to 5 °, the processed PCB 200 may enter the roll-over stand 53 under the action of the first roller assembly 531 and the second roller assembly 532, when the PCB 200 completely enters the conveying space after the roll-over stand 53, the follower telescopic assembly 54 is extended to press the PCB 200, the roll-over driving module 52 may control the roll-over stand 53 to rotate 180 ° to the second limit, when the roll-over stand 53 rotates 180 ° with the PCB 200 to the second limit, the follower telescopic assembly 54 is out of contact with the PCB 200, and the first roller assembly 531 and the second roller assembly 532 may convey the PCB 200 to the next station, thereby providing necessary directional control for the subsequent station.

For example, referring to fig. 12, when a first PCB 200 enters the roll-over stand 53, the roll-over driving module 52 does not drive the roll-over stand 53 to roll over, the first roller assembly 531 and the second roller assembly 532 drive the PCB to move to the conveying mechanism 20 in the first direction, at this time, the pin 201 of the PCB 200 faces downward, and then the PCB is turned over by the below-described roll-over board collecting mechanism 70 and transferred to the board collecting and blanking storage mechanism 80, so that the aluminum plate surface (the side not having the pin 201) side of the PCB 200 abuts against the board collecting and blanking storage mechanism 80, which is beneficial to ensuring the reliable placement of the PCB 200.

In some examples, referring to fig. 8, the turnover mechanism 50 further includes a conveying driving motor 55 and an in-out sensor 56, the conveying driving motor 55 is disposed on the turnover frame 53, the conveying driving motor 55 is connected to the first roller assembly 531 and the second roller assembly 532 through a conveying wheel and a conveying belt, the in-out sensor 56 is provided in two sets and respectively disposed on two sides of the turnover frame 53 in the first direction (refer to the direction F1), the follow-up expansion member 54 includes a plurality of cylinder members, and a free end of a piston rod of each cylinder member is provided with a flexible member.

Specifically, when the in-out sensor 56 located at the board inlet end side detects the PCB 200, the conveying driving motor 55 operates, power is transmitted through the synchronizing wheel and the synchronizing belt inside the supporting sides at the two sides, the first roller assembly 531 and the second roller assembly 532 are driven to move, so that the PCB 200 is driven to move downstream, when the PCB 200 does not detect the PCB 200 when moving to the in-out sensor 56 located at the board inlet end side, the conveying driving motor 55 stops, and the piston rods of the plurality of pressing cylinders of the follow-up expansion part 54 act to press the PCB 200 onto the second roller assembly 532 through the flexible part. After the turnover part is turned over for 180 degrees integrally, the piston rod is loosened, the conveying driving motor 55 operates to drive the PCB 200 to move out from the board outlet side, and the whole turnover action flow is completed after the board outlet side inlet sensor 56 detects whether the board outlet side inlet sensor exists or not.

In some alternative embodiments of the present invention, referring to fig. 6, the frame 51 is provided with a first detecting element 511, and the first detecting element 511 is used for detecting whether the roll-over stand 53 is at the first limit. Therefore, whether the turnover frame 53 is at the first limit position or not is determined, and the working reliability of the blanking device 100 is ensured. For example, the first detection element 511 may also be a light sensor, a hall sensor, or the like.

In some optional embodiments of the present invention, referring to fig. 6, the frame 51 is provided with a second detecting element 512, and the second detecting element 512 is used for detecting whether the roll-over stand 53 is at the second limit. For example, the second detection element 512 may be a light sensor or a hall sensor. Therefore, whether the turnover frame 53 is at the second limit or not is determined, and the working reliability of the blanking device 100 is ensured.

In some optional embodiments of the present invention, referring to fig. 6, a third detecting element 533 is disposed on the roll-over stand 53, the third detecting element 533 can rotate synchronously with the roll-over stand 53, and the third detecting element 533 is used to detect whether the roll-over stand 53 is located at the origin. For example, referring to fig. 7, the third detecting element 533 is connected to the follower shaft 536 through one end of the follower shaft supporting block 58, the frame 51 is further provided with a detecting matching plate 515, the detecting matching plate 515 is provided with an opening 5151, and the third detecting element 533 is matched with the opening 5151 to find the origin. It will be appreciated that by providing the third detecting element 533 for finding the origin, reliable control of the tumble drive module 52 is facilitated.

In some examples, referring to fig. 6, the roll-over stand 53 is provided with an abutting lug 534, the frame 51 is further provided with a first buffer 516 and a second buffer 517 which are arranged at intervals, the first buffer 516 is adapted to cooperate with one side surface of the abutting lug 534 to prevent the roll-over stand 53 from continuing to rotate after exceeding a first limit position, and the second buffer 517 is adapted to cooperate with the other opposite side surface of the abutting lug 534 to prevent the roll-over stand 53 from continuing to rotate after exceeding a second limit position, so that the first buffer 516 and the second buffer 517 can play a role in buffering and limiting when an accident occurs during the movement of the roll-over stand 53, thereby realizing a hard limit at an over travel position and being beneficial to reducing safety hazards.

In some optional embodiments of the present invention, referring to fig. 6, the frame 51 includes a machine table and an outer cover (not shown), the machine table can be a square pipe welded integral supporting frame, the outer cover is formed by combining and splicing bent metal plates, the roll-over frame 53 is rotatably connected with the machine table, the roll-over driving module 52 is disposed in a space enclosed by the machine table and the outer cover, the turnover mechanism 50 further includes an inlet receiving component 513 and an outlet receiving component 514, the inlet receiving component 513 and the outlet receiving component 514 are both disposed on the frame 51, the inlet receiving component 513 is butted with the board inlet end butting machine table, and the upper and lower height of the inlet receiving component 513 is adjustable, so as to prevent the height of the roll-over frame 53 from being different from the height of the board inlet end butting machine table, the outlet receiving component 514 is butted with the board outlet end butting machine table, and the upper and lower height of the outlet receiving component 514 is adjustable, so as to prevent the height of the roll-over frame 53 from being different from the height of the board outlet end butting machine table, thereby being beneficial to ensuring the working reliability of the blanking device 100.

In some specific examples, the turnover mechanism 50 may be compatible with PCB 200 having a length and a width in a range of 700 × 760 to 400 × 450, so as to be applicable to PCB 200 having different sizes, and there is no need to replace or add new workpieces, and in the whole movement process of the PCB 200, flexible rings adapted to be in flexible contact with the PCB are disposed on the rollers of the first roller assembly 531 and the second roller assembly 532, and the pressing cylinder of the following telescopic member 54 is also in flexible contact with the PCB 200, so that the appearance of the PCB 200 is not damaged, and the quality of the PCB 200 is ensured.

In some embodiments of the present invention, referring to fig. 9, the blanking apparatus 100 further includes: the rotating mechanism 60 is arranged on the mounting table 10, the rotating mechanism 60 is located at a board feeding end of the centering mechanism 40 in the conveying direction of the PCB board 200, the rotating mechanism 60 includes a telescopic module 61 and a rotating module 62, the telescopic module 61 is telescopically arranged between the mounting table 10 and the rotating module 62 up and down, the rotating module 62 has a rotating driving portion 621 and a rotating table 622, the rotating driving portion 621 is used for driving the rotating table 622 to rotate, when the rotating table 622 is higher than the conveying mechanism 20, the rotating table drives the PCB board 200 to rotate around a first preset axis (refer to L1 in fig. 9), and the first preset axis extends up and down. It can be understood that, by arranging the rotating mechanism 60, the rotating mechanism 60 can drive the PCB boards 200 to rotate 90 °, so that two adjacent PCB boards 200 can rotate 90 ° to form a cross-shaped arrangement, thereby being beneficial to further avoiding the risk of collapse and ensuring the stacking stability of the PCB boards 200.

In some embodiments of the present invention, referring to fig. 1, 9 and 10, the blanking apparatus 100 further includes: the plate overturning and receiving mechanism 70 and the blanking storage mechanism 80 are arranged, the plate overturning and receiving mechanism 70 is located at a plate outlet end of the conveying mechanism 20, the plate overturning and receiving mechanism 70 comprises an overturning driving part 71, a material frame 72 and a material returning part 73, the overturning driving part 71 is arranged on the mounting table 10, the overturning driving part 71 is used for driving the material frame 72 to rotate around a second preset axis, the second preset axis extends in a second direction, the material returning part 73 is arranged on the mounting table 10 and is telescopic in the first direction (refer to fig. 1), the blanking storage mechanism 80 is located at the plate outlet end of the mounting table 10, the blanking storage mechanism 80 comprises a conveying part 81 and a material receiving vehicle 82, the material receiving vehicle 82 is arranged on the conveying part 81, and the conveying part 81 is used for driving the material receiving vehicle 82 to move in the first direction. The material rack 72 is adapted to place the PCB 200 and drive the PCB 200 to rotate around a second predetermined axis (refer to L2 in fig. 10), and the material receiving cart 82 includes a bearing section 831 and a ramp section 832, wherein the bearing section 831 is a plurality of sections and is connected to the bottom of the ramp section 832 at intervals.

It can be understood that, when the distance between the PCB 200 on the conveying mechanism 20 and the board receiving mechanism 70 reaches the preset distance, the rack 72 rotates around the second preset axis to be flush with the conveying mechanism 20, then the PCB 200 enters the rack 72 under the driving of the conveying mechanism 20, then the rack 72 drives the PCB 200 to rotate by the preset angle (where the preset angle is greater than 90 °, for example, 92 °, 93 °, 94 °, 95 °, 96 °, and the like), when the bottom of the rack 72 is lower than the bearing section 831 of the receiving cart 82, the bottom of the PCB 200 is placed on the receiving cart 82 and leaves the rack 72, and at this time, the material returning component 73 pushes and extends to push the PCB 200 to the inclined rail section 832 of the receiving cart 82 to be placed in order, which is beneficial to ensuring the stability and reliability of the board receiving action.

Specifically, in one example, referring to fig. 12 to 14, during blanking of the PCB boards 200, one of the adjacent two PCB boards 200 is horizontally rotated by 90 degrees without passing through the rotating mechanism 60. The other of the adjacent two PCB boards 200 is horizontally rotated by 90 degrees by the rotating mechanism 60. In the blanking process of the PCB 200, the first PCB 200 and the second PCB 200 are not turned over by the turning mechanism 50, the third PCB is turned over by 180 degrees by the turning mechanism 50, the fourth PCB 200 is not turned over by 180 degrees by the turning mechanism 50 (see fig. 14), and every other PCB 200 is turned over by 180 degrees by the turning mechanism 50. When the PCB boards 200 are blanked and stacked, one of the adjacent two PCB boards 200 is vertically placed and the other of the adjacent two PCB boards 200 is laterally placed. Two adjacent PCB boards 200 placed in the same direction, for example, two adjacent PCB boards 200 placed vertically or two adjacent PCB boards 200 placed horizontally, one of them is subjected to position adjustment by the centering mechanism 40, and the other is not subjected to position adjustment by the centering mechanism 40. Therefore, when the PCB boards 200 are stacked, the pin punching positions of two adjacent PCB boards 200 are vertically staggered, and the pins of two adjacent PCB boards 200 which are arranged in the same direction are staggered, so that the PCB boards 200 are stacked more compactly, and the space occupied by stacking the PCB boards 200 is reduced.

In some optional embodiments of the present invention, referring to fig. 10, the stack 72 includes a first section 721, a second section 722 and a third section 723, the first section 721 and the third section 723 are arranged in parallel, the second section 722 is connected between the bottom end of the first section 721 and the bottom end of the third section 723, an accommodating groove 724 is defined between the first section 721, the second section 722 and the third section 723, the length of the first section 721 is greater than that of the third section 723, and the third section 723 is provided with a second roller 725 adapted to cooperate with the PCB. It can be understood that, by providing the second roller 725 on the third section 723, when the PCB 200 is driven by the conveying mechanism 20 to enter the accommodating groove 724 of the rack 72, the second roller 725 is in rolling fit with the PCB, so that the PCB 200 can be prevented from being scratched, and meanwhile, when the second roller 725 of the rack 72 is partially lower than the material receiving vehicle 82 so that the PCB 200 leaves the rack 72, the second roller 725 is in rolling fit with the PCB 200, so as to facilitate smooth unhooking of the PCB 200.

In some examples of the present invention, referring to fig. 10, the turnover driving component 71 includes a driving cylinder 711, a supporting seat 712, a turnover shaft 713, a cylinder mounting plate 714, a cylinder connecting plate 715 and a rotation connecting plate 716, the turnover shaft 713 is rotatably connected to the mounting table 10 through two supporting seats 712, the stacks 72 are two and fixedly disposed on the turnover shaft 713 at intervals, the driving cylinder 711 includes a driving cylinder 7111 and a telescopic driving rod 7112, the driving cylinder 7111 is rotatably connected to the cylinder mounting plate 714, the telescopic driving rod 7112 is connected to the turnover shaft 713 through the rotation connecting plate 716, the telescopic driving rod 7112 is retractable relative to the driving cylinder 7111 to drive the turnover shaft 713 to rotate around a second preset axis (referring to L2 in fig. 10), wherein a rotation center line of the turnover shaft 713 is the second preset axis, and a second roller section 725 is disposed on a top of a third section 723 of each stack 72.

Further, in a specific example, referring to fig. 11, the material returning part 73 includes a guide rod cylinder 731, a guide rod cylinder connecting plate 732, a push plate 733, a photoelectric sensor 734, a groove type photoelectric sensor 735, a linear bearing 736, a compression spring 737, and a sensing piece 738, one end of the guide rod cylinder 731 is connected to the mounting stage 10, the other end of the guide rod cylinder 731 is connected to the push plate 733 through the guide rod cylinder connecting plate 732, one end of the compression spring 737 is connected to the guide rod cylinder connecting plate 732 through the linear bearing 736, the other end of the compression spring 737 is connected to the push plate 733, the photoelectric sensor 734 and the groove type photoelectric sensor 735 are spaced apart from each other on the guide rod cylinder connecting plate 732, and the sensing piece 738 is provided on the push plate 733 and adapted to be fitted to the groove type photoelectric sensor 735. The photo sensor 734 is used for detecting the presence or absence of the PCB 200, and the slot photo 735 is used for detecting whether the pushing plate 733 presses the product in cooperation with the sensing piece 738. The push plate 733 may be made of POM (polyoxymethylene), and it is understood that POM has advantages of high strength and rigidity, good elasticity, good wear resistance, and the like, and by making the push plate 733 made of POM, it is possible to ensure not only the hardness of the push plate 733 but also that the push plate 733 does not damage the PCB 200.

In one example, the operation flow of the plate turning and collecting mechanism 70 and the blanking storage mechanism 80 can be as follows: controlling the first section 721 of the rack 72 to be flush with the conveying mechanism 20 (at this time, the plane of the first section 721 is lower than the horizontal plane of the conveying belt 21 on the conveying mechanism 20), conveying the PCB 200 to the accommodating groove 724 via the conveying mechanism 20, detecting the PCB 200 by the photoelectric sensor 734, after a preset time (for example, 2s) is delayed, retracting the turnover driving component 71 to drive the turnover shaft 713 to turn clockwise by a preset angle (for example, 95 °), and allowing the product to fall onto the material receiving vehicle 82; the guide rod cylinder 731 on the material returning part 73 jacks the PCB 200, and meanwhile, the conveying part 81 drives the material receiving vehicle 82 to approach the conveying mechanism 20 until the groove-shaped photoelectric device 735 detects the induction sheet 738, which indicates that the product reaches the required position; the guide rod cylinder 731 retracts, and the transfer part 81 drives the material receiving vehicle 82 to move a specified distance away from the mounting table 10, and the process is repeated until the material receiving vehicle 82 is filled as required.

In some optional embodiments of the utility model, as shown in fig. 2, be equipped with on the material collecting trolley 82 and be suitable for with the complex skid resistant course 8311 of PCB board 200, be equipped with concave-convex structure on the skid resistant course 8311, for example, concave-convex structure can be for forming protruding and/or recess on the bearing section 831 of material collecting trolley 82. It can be understood that, by arranging the anti-slip layer 8311, the friction force between the PCB board 200 and the material receiving cart 82 can be increased, thereby being beneficial to improving the reliability and stability of the material receiving cart 82.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A blanking device is characterized by comprising:

an installation table;

the conveying mechanism is arranged on the mounting table and used for conveying the PCB along a first direction;

the telescopic mechanism is arranged on the mounting table in a vertically telescopic manner and is used for jacking or replacing the PCB board to the conveying mechanism;

and the centering mechanism can adjust the position of the PCB in the second direction when the telescopic mechanism pushes the PCB away from the conveying mechanism.

2. The blanking device of claim 1, wherein the centering mechanism comprises:

the first centering assembly comprises a first driving module and a first limiting component, the first driving module is connected with the mounting table, and the first driving module is used for driving the first limiting component to move in a second direction;

the second centering assembly comprises a second driving module and a second limiting component, the second driving module is connected with the mounting table and is used for driving the second limiting component to move in a second direction,

the first driving module and the second driving module are independently controlled, and the first limiting part and the second limiting part are suitable for being matched with two sides of the PCB in the second direction.

3. The blanking device of claim 2, wherein the first drive module comprises:

the two first rotating wheels are arranged at intervals in the second direction and are rotatably connected with the mounting table;

one end of the first synchronous belt is sleeved on the outer peripheral side of one of the first rotating wheels, the other end of the first synchronous belt is sleeved on the outer peripheral side of the other first rotating wheel, and the first limiting part is connected with the first synchronous belt and is positioned between the two first rotating wheels;

the first driving motor is arranged on the mounting table and used for driving one of the first rotating wheels to rotate so as to enable the first synchronous belt to drive the first limiting part to move along a second direction;

the first limiting part is provided with a first induction element, the mounting table is provided with a plurality of second induction elements used for inducing the first induction element, and the second induction elements are arranged at intervals in the second direction.

4. The blanking device of claim 2, wherein the second drive module comprises:

the two second rotating wheels are arranged at intervals in the second direction and are rotatably connected with the mounting table;

one end of the second synchronous belt is sleeved on the outer peripheral side of one of the second rotating wheels, the other end of the second synchronous belt is sleeved on the outer peripheral side of the other second rotating wheel, and the second limiting part is connected with the second synchronous belt and is positioned between the two second rotating wheels;

the second driving motor is arranged on the mounting table and used for driving one of the second rotating wheels to rotate so as to enable the second synchronous belt to drive the second limiting component to move along a second direction;

the second limiting part is provided with a third induction element, the mounting table is provided with a plurality of fourth induction elements used for inducing the third induction element, and the fourth induction elements are arranged at intervals in the second direction.

5. The blanking device as claimed in claim 1, wherein the telescopic mechanism comprises a telescopic driving member and a supporting plate, the telescopic driving member is disposed on the mounting platform, the telescopic driving member is used for driving the supporting plate to move up and down, a first roller is disposed on the top of the supporting plate, and the first roller is adapted to be in rolling fit with the PCB.

6. The blanking device of claim 5, wherein the support plate comprises a bottom plate and a plurality of support sub-plates arranged on the bottom plate, the plurality of support sub-plates are arranged at intervals in the first direction, and each support sub-plate is provided with one or more first rollers spaced apart in the second direction.

7. The blanking device of any one of claims 1 to 6, further comprising:

the turnover mechanism is positioned at the board inlet end of the conveying mechanism in the conveying direction of the PCB, the turnover mechanism comprises a frame, a turnover driving module, a turnover frame and a follow-up telescopic piece, wherein the turnover driving module is arranged on the frame, the turnover frame is rotatably connected with the rack, the turnover driving module is used for driving the turnover frame to rotate between a first limit position and a second limit position, the follow-up telescopic piece is suitable for pressing the PCB, the frame is provided with a first detection element and a second detection element, the first detection element is used for detecting whether the roll-over stand is at a first limit position, the second detection element is used for detecting whether the roll-over stand is at a second limit position, and a third detection element is arranged on the roll-over stand and used for detecting whether the roll-over stand is positioned at the original point.

8. The blanking device of any one of claims 1 to 6, further comprising:

rotary mechanism, rotary mechanism locates the mount table on the direction of delivery of PCB board, rotary mechanism is located the mechanism's of returning to the middle advance board end, rotary mechanism includes flexible module and rotating module, flexible module can be established with stretching out and drawing back from top to bottom the mount table with between the rotating module, rotating module has rotary drive portion and revolving stage, rotary drive portion is used for the drive the revolving stage is rotatory the revolving stage is higher than during conveying mechanism, the revolving stage drives the PCB board rotates around first predetermined axis, first predetermined axis extends at upper and lower direction.

9. The blanking device of any one of claims 1 to 6, further comprising:

the turnover plate receiving mechanism is positioned at a plate outlet end of the conveying mechanism and comprises a turnover driving part, a material rack and a material returning part, the turnover driving part is arranged on the mounting table and is used for driving the material rack to rotate around a second preset axis, the second preset axis extends in the second direction, and the material returning part is arranged on the mounting table and is telescopic in the first direction;

the blanking storage mechanism is located at the plate outlet end of the mounting table and comprises a conveying part and a receiving vehicle, the receiving vehicle is arranged on the conveying part, and the conveying part is used for driving the receiving vehicle to move in a first direction.

10. The blanking device according to claim 9, wherein the material frame comprises a first section, a second section and a third section, the first section and the third section are arranged in parallel, the second section is connected between the bottom end of the first section and the bottom end of the third section, an accommodating groove is defined among the first section, the second section and the third section, the length of the first section is greater than that of the third section, and the third section is provided with a second roller which is suitable for being matched with the PCB.

Images