DE102011111503A1 - Circuit board depositor for connecting board supply to editing machine or processing machine, has carriage pivoted from position to receive circuit board of circuit board storage around axis of rotation into third position - Google Patents

Abstract

The circuit board depositor (1) has a carriage (3) moved to a frame (4) horizontally between two positions. A circuit board (6a) is delivered to a machine for processing in the latter position. The carriage is pivoted from the former position into a third position (B-III) and finally into the former position, around an axis of rotation (20), for receiving the circuit board from circuit board storage (5). The rotational axis is aligned horizontally and transversely to a horizontal direction of travel. The circuit board (6a), in the third position, is removed from a circuit board holding unit (2) of the circuit board storage (5).

Description

The invention relates to a board inserter according to the preamble of claim 1.

From the DE 42 25 248 A1 a sinker for a press is known. The cross conveyor shown there and described contains each right to the left of the workpiece transport plane and a destacking station, which is assigned at least one extendable on rails stacking car. By arranged below the stacker carriage, not shown hydraulic working cylinder of each processed board stack is continuously raised so that the upper board comes into the effective range of the suction spider of the cross conveyor. The suction spider is mounted on a vertically movable lifting unit which is operatively connected to a horizontally movable carriage, whereby two-dimensional movement of the sinkers from the destacking station to the receiving position of the longitudinal conveyor is possible.

The invention has for its object to provide a board inserter, which is particularly simple and inexpensive.

This object is achieved on the basis of the features of the preamble of claim 1 by the characterizing features of claim 1. In the dependent claims advantageous and expedient developments are given.

When board insert according to the invention, a carriage is pivoted from a first position for receiving the board from the sinker bearing about an axis of rotation to a third position and then back to the first position to then drive to its second position for delivering the board to a machine. Here, the axis of rotation is aligned horizontally and transversely to the horizontal direction of travel, wherein the board previously in the third position of the arranged on the carriage board holding unit, which is in particular designed as a gripper unit or as a suction unit, is removed from the sinker bearing. By such a kinematics of the carriage on which the one board holding unit is arranged, it is possible to dispense with the use of a vertically movable lifting device, since the level of the board holding unit is variable by the pivoting movement. Due to this waiver of the board insert simplifies technically in particular the fact that the arrangement of a driven unit, namely a self-propelled vertically movable board holding unit is dispensed with the movable carriage and can be dispensed with technically complex and high maintenance requiring flexible power supply lines. Furthermore, the absence of a separate drive for the board holding unit also reduces the mass to be moved. This has a lower energy consumption and allows higher accelerations and thus shorter cycle times. The core of the invention is thus a board feeder, the carriage is reduced with board holding unit to a minimum of components and dispenses in particular with its own drive for the board holding unit.

The invention further provides for the sinker a first drive which moves the carriage between the first position and the second position and a second drive which moves the carriage between the first position and the third position. By such a division of the drives both a horizontal movement of the carriage carriage between the first and the third position and a movement of the carriage between the first and the third position are possible. By this movement, it is possible by a stationary drive, which is not moved with the carriage to produce a lifting movement of the board holding unit or the suction unit.

The invention further provides for decoupling the second drive from the carriage when the carriage is moved by the first drive. As a result, the first drive requires no energy to move the second drive.

Furthermore, the invention provides to form the second drive as a pivot drive, wherein the carriage forms for this purpose together with the board holding unit or gripper unit or the suction unit a rocker, wherein the rocker is pivotable about the axis of rotation of the pivot drive. Here, the rocker comprises two opposite arms, which form a lever and it is provided in particular to allow the pivot drive to act on a power arm, which is formed by the first arm of the rocker and wherein the board holding unit is arranged on a load arm, which by the second arm is formed. As a result, the load arm of the rocker without restriction by the pivot drive for the arrangement of the board holding unit is available. Alternatively, it is envisaged to engage both the pivot drive on a power arm, which is formed by the second arm, and to arrange the board holding unit on the load arm, wherein the load arm is formed by the second arm. In such an arrangement, it is for example provided that the Schenk drive acts from above on the carriage to achieve a compact design.

The invention provides to form the pivot drive by a lifting cylinder, wherein the Lifting cylinder lifts the rocker, in particular against the force of a pressure roller to move the carriage from the first position to the third position. A designed as a lifting cylinder swivel drive is inexpensive to implement. If the lifting cylinder operates against a pressure roller, a cost-effective, single-acting cylinder is sufficient, since the required restoring force is provided by the prestressed by the lifting cylinder pressure roller.

Furthermore, the invention also provides to decouple the first drive from the carriage when the carriage is moved by the second drive, wherein the first drive is decoupled in particular by the movement of the second drive. As a result, the second drive requires no energy to move the first drive. Furthermore, no complex components for coupling and decoupling the first drive with the carriage are required.

According to the invention, it is provided to equip the suction unit with at least one sucker, for example a bellows suction device, wherein the sucker or the suction unit is arranged in particular orthogonal to a suction surface sprung relative to the carriage and / or wherein the sucker or the suction unit in particular orthogonal to a suction surface is arranged telescopically relative to the carriage and / or wherein the sucker or the suction unit is arranged in particular oscillating about an orthogonal, which is on a sucker surface, relative to the carriage. By a sprung arrangement and / or telescopic arrangement and / or oscillating arrangement can be compensated tolerances in a simple manner and ensure a gentle treatment of the boards. By means of a telescopic arrangement, the suction unit or the individual vacuum cleaner can be preset in its distance from the rocker and adapted to different requirements. An arrangement of switchable magnets as an alternative or in addition to suckers is conceivable.

It is further provided to equip the board inserter with a spreading device, by which the uppermost board of the board storage is at least partially separable from the underlying second uppermost board to avoid sticking of the second top board to the top board when lifting the top board the spreading device generates a spreading apart of the uppermost board, in particular by magnetic force, and wherein the spreaded uppermost board is inclined to a second uppermost board lying below it, in particular at an acute angle (α). By using a spreader smooth operation between the board feeder and the downstream of the board inserter machine, on which a processing and / or processing of the board takes place, achieved because the unwanted supply of adhering boards is avoided.

Finally, the invention provides, the top board by the spreader so obliquely at an acute angle (α) to a first horizontal to make that between the splayed by the board insert from the other boards uppermost board and a longitudinal axis of the third position standing sled an acute angle (γ), which is smaller than an acute angle (β), which occupies the longitudinal axis of the carriage in the third position to a second horizontal, wherein the splayed from the other boards top board then in particular approximately parallel to the longitudinal axis of the standing in the third position carriage. This is achieved by simple means, namely a special spread position of the top board, that especially when using a gripper unit with multiple grippers or when using a suction unit with multiple suckers the top board safely, that is under the action of all grippers or all Sucker can be gripped or sucked by the gripper unit or suction unit. Here, too, switchable magnets are conceivable as an alternative or in addition to suckers and / or grippers.

For the purposes of the invention, a board insert means a device by means of which the supply of boards takes place to a downstream processing and / or processing machine, wherein the processing machine is designed for example as a forming system and in particular as a single press, transfer press, Mehrstößeltransferpresse or press line. The sinker according to the invention is also referred to as a sheet feeder, cross conveyor or sinker loader and removes the boards from a stack.

Further details of the invention are described in the drawing with reference to schematically illustrated embodiments.

Hereby shows:

1 a schematic side view of a board inserter according to the invention in a first operating position;

2 to 7 : further schematic side view of the in the 1 shown board inserter;

8th : one of the 1 similar, schematic side view of the board inserter, in which this is again in the first operating position and

9 : one in the 8th indicated view of the inserter from the right.

In the 1 is a schematic side view of an inventive board insert 1 shown. The board inserter 1 includes a board holding unit 2 , which as suction unit 2a is formed a sled 3 , a frame 4 and a board store 5 with circuit boards 6 , Here is the board holding unit 2 on the sledge 3 arranged. From the frame 4 are in the 1 for the sake of clarity only three guides 7 . 8th and 9 shown. In the 9 which is a view from the right on the board inserter 1 according to the in the 8th indicated side view is complementary portal 14 of the frame 4 shown which the guides 7 . 8th and 9 carries, with the guides 8th and 9 each by two opposite roles 8a . 8b and 9a . 9b are formed. The in the 9 for the sake of clarity not shown leadership 7 is as a wave 7a formed, which differs from a right carrier 10a to a left carrier 10b of the portal 10 extends. On this tour 7 is the sled 3 in one in the 1 shown first position or operating position BI, this position is also referred to as parking position. Under the suction unit 2a is the board storage 5 with the boards 6 arranged, the board insert 1 this serves the boards 6 after each other a machine 11 to be supplied for processing, being of the machine 11 only a transport device TPE is shown, which transports boards in the plane of the drawing. The board storage 5 includes a spreader 12 , which serves the top board 6a one out of the boards 6 existing board stack 13 from the underlying boards 6b to 6f spread so that they no longer flat on the second-highest board 6b rests or adheres. The spreader 12 works so that the top board 6a to the other horizontally superposed boards 6b to 6f has an acute angle α, which is between 2 ° and 20 ° and in particular between 3 ° and 10 °.

In the 1 is the spreading device 12 already active and the top board 6a lies in the angle α obliquely to a first horizontal HZ1 and only with a running into the plane of the drawing in front edge 14 on the board 6b on.

The board inserter 1 further comprises a first drive 15 and a second drive 16 , The first drive 15 serves the sled 3 between the first position BI, which in the 1 shown and a second position B-II, which in the 4 and it is shown to move horizontally. This includes the first drive 15 a double-acting cylinder 17 who is the sled 3 in an arrow direction x and an opposite arrow direction x 'moves. The second drive 16 includes a single-acting cylinder 18 , which together with a pressure roller 19 on the sled 3 acts. In the presentation of the 1 there is a piston 18a of the cylinder 18 already in contact with the carriage 3 around this around a rotation axis 20 which of the leadership 7 is formed, in the direction of rotation w in the in the 2 to flip shown third position B-III. For a schematic view, the slide is 3 to consider as lever H, which together with the leadership 7 a seesaw 22 with two arms A1 and A2 forms. Here, the left arm A1 forms a force arm 21 and the right arm A2 a load arm 26 , To perform the tilting movement of the power arm 21 of the sled 3 from the cylinder 18 with the piston 18a against one of the pressure roller 19 applied counterforce raised until this with its in the first operating position BI horizontally extending longitudinal axis 23 is at an angle β to a second horizontal HZ2. In this third position B-III, which in the 2 shown, the sucks to the sled 3 belonging suction unit 2a with their suckers 24 . 25 then the slanted top board 6a at. As the inclination of the carriage 3 tilted suction unit 2a with an angle β and the inclination of the top board 6a with an angle α relative to the horizontal HZ1 or HZ2 have similar values and the angle γ between the inclined top board 6a and the inclination of the suction unit 2a or the carriage representing the longitudinal axis 23 less than 10 ° and in particular less than 5 °, possibly going to zero, no active vertically movable suction unit is required to the top board 6a take.

Once the top board 6a is sucked in the carriage 3 again in one of the first direction of rotation w opposite direction of rotation w 'are pivoted back. For this, the pressure in the cylinder 18 reduced, so that in a spring, not shown, of the pressure roller 19 stored energy is sufficient to the sled 3 from the third position B-III in the in the 3 shown first position BI around the axis of rotation 20 to turn back. This takes the suction unit 2a , which on the load arm 26 of the sled 3 is arranged, the top board 6a With.

In the 3 it is also recognizable that the cylinder 18 with his piston 18a now with the sledge 3 is no longer engaged. Furthermore, in the synopsis of 1 to 3 recognizable that the first drive 15 when switching between the first position BI and the third position B-III is disengaged. This loses a piston rod 17a of the cylinder 17 of the drive 15 her grip on the sled 3 and becomes when tilting or turning back the carriage 3 engaged again. A complete coupling of the cylinder 17 at the sled 3 is reached when the pressure roller 19 the sled 3 again completely in the first operating position BI, in which the carriage 3 horizontal, has pressed.

After the sled 3 by retraction of the second cylinder 18 from the second drive 16 decoupled, becomes the first drive 15 active to the sled 3 which is attached to its suction unit 2a continue the top board 6a contributes to the second position B-II (see 4 ) to proceed. This movement in the direction of arrow x takes place between the representations of 3 and 4 ,

As in the comparative analysis of 4 and 5 is recognizable, the suction unit 2a after the sled 3 the second position B-II has reached shut off to the topmost board 6a to the transport device TPE.

After the delivery of the top board 6a is done, the carriage is 3 from the first drive 15 from the second position B-II in the direction of arrow x 'again in the first position BI (see 7 ) withdrawn. in the 6 is shown an intermediate position, which is the sled 3 on his way back.

In the 7 is the sled 3 then again in the first position BI, being different from the 1 The piston 18a of the cylinder 18 of the second drive 16 not yet in contact with the sled 3 stands. Only in the 8th is then with respect to the position of the second drive 16 and regarding the activity of the spreader 12 again in the 1 shown state reached. Here is the board stack 13 to leveling from one to simplify the views in the 8th only symbolic and in the 9 schematically illustrated lifting device 27 slightly raised. After the board 6a already passed to the transport device, now the board 6b through the spreader 12 slanted to the suction unit 2a to be included. The lifting device 27 is in a hall floor 28 arranged and comprises a bottom plate 27a and several lifting cylinders 27b and 27c ,

Starting from the representation of 8th continues the cycle that the board inserter 1 for receiving a board and the delivery of the recorded board passes through, again with the 2 continued.

To compensate for a different orientation of the suction unit 2a formed board holding unit to that of the spreader 12 slanted board 6 , are the suckers 24 . 25 or orthogonal to its suction surface 24a . 25a suspended and / or oscillating (see 6 ).

The invention is not limited to illustrated or described embodiments. Rather, it includes developments of the invention within the scope of the patent claims.

LIST OF REFERENCE NUMBERS

1

board feeder

2

Board holding unit

2a

suction unit

3

carriage

4

frame

5

platinum Available

6

circuit board

6a

top board

6a-6f

boards 6b to 6f be strained

7

guide

7a

wave

8th

guide

8a, 8b

role

9

guide

9a, 9b

role

10

Portal of the rack 4

10a

right bearer of 10

10b

left carrier of 10

11

machine

12

spreading

13

blank stack

14

Leading edge of 6a

15

first drive

16

second drive

17

double acting cylinder of 15

18

single-acting cylinder of 16

18a

Piston of the cylinder 18

19

pressure roller

20

Rotary axis formed by 7

21

Low-power of 3

22

seesaw

23

horizontally extending longitudinal axis

24, 25

Sucker of 2a

26

Load arm of the carriage 3

27

lifting device

27a

baseplate

27b, 27c

lifting cylinder

28

shop floor

A1

left arm of 22

A2

right arm of 22

BI

first position

B-II

second position

B-III

third position

H

lever

HZ1

first horizontal

HZ 2

second horizontal

TPE

transport means

w

direction of rotation

w '

opposite direction of rotation

x

arrow

x '

arrow

α

Angle between HZ1 and 6a

β

Angle between HZ2 and 23

γ

Angle between 6a and 23

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 4225248 A1 [0002]

Claims (9)

Board inserter ( 1 ) - a board holding unit ( 2 ), in particular gripper unit, switchable magnet unit or suction unit ( 2a ), - a sled ( 3 ), - a frame ( 4 ) and - a PCB storage ( 5 ), Wherein the board holding unit ( 2 ) on the carriage ( 3 ), the carriage ( 3 ) on the frame ( 4 ) is horizontally movable between a first position (BI) and a second position (B-II), - wherein the carriage ( 3 ) in the first position (BI) and - wherein the carriage ( 3 ) in the second position (B-II) a board ( 6 ; 6a - 6f ) to a machine ( 1 ) for spreading the board ( 6 ; 6a - 6f ), characterized in that - the carriage ( 3 ) from its first position (BI) for receiving the board ( 6 ; 6a - 6f ) from the board store ( 5 ) about a rotation axis ( 20 ) in a third position (B-III) and then again in the first position (BI) is pivotable, - wherein the axis of rotation ( 20 ) is aligned horizontally and transversely to a horizontal traversing direction (x, x ') and - wherein the circuit board ( 6 ; 6a - 6f ) in the third position (B-III) of the board holding unit ( 2 ) from the board store ( 5 ) is removable. Board inserter according to claim 1, characterized in that the board inserter ( 1 ) a first drive ( 15 ), which supports the carriage ( 3 ) between the first position (BI) and the second position (B-II) moves and that the board insert ( 1 ) a second drive ( 16 ), which supports the carriage ( 3 ) is moved between the first position (BI) and the third position (B-III). Board inserter according to claim 2, characterized in that the second drive ( 16 ) from the carriage ( 3 ) is decoupled to the carriage ( 3 ) with the first drive ( 15 ) to move. Board inserter according to claim 1 or claims 2 and 3, characterized in that the second drive ( 16 ) is designed as a pivot drive, wherein the carriage ( 3 ) together with the board holding unit ( 2 ) a rocker ( 22 ), wherein the rocker ( 22 ) of the pivot drive about the axis of rotation ( 20 ) is pivotable, wherein the rocker ( 22 ) comprises two opposite arms (A1, A2), which form a lever (H), wherein it is provided in particular - that the pivot drive on a power arm ( 21 ), which is formed by the first arm (A1), and wherein board holding unit ( 2 ) on a load arm ( 26 ), which is formed by the second arm (A2) or - that the pivot drive on a power arm ( 21 ) which is formed by the second arm (A2) and wherein the board holding unit ( 2 ) on a load arm ( 26 ), which is also formed by the second arm (A2). Board insert according to claim 4, characterized in that the pivot drive as a lifting cylinder ( 18 ) is formed, wherein the lifting cylinder ( 18 ) the rocker ( 22 ) in particular against the force of a pressure roller ( 19 ) to lift the carriage ( 3 ) to move to the third position (B-III). Board inserter according to claim 2, characterized in that the first drive ( 15 ) from the carriage ( 3 ) is decoupled to the carriage ( 3 ) with the second drive, the first drive ( 15 ) in particular by the movement of the second drive ( 16 ) is decoupled. Board insert according to one of the preceding claims, characterized in that the suction unit ( 2a ) or switchable magnet unit formed board holding unit ( 2 ) at least one sucker ( 24 . 25 ) or switchable magnet, wherein the sucker ( 24 . 25 ) or the suction unit ( 2a ) - in particular orthogonal to a suction surface ( 24a . 25a ) sprung relative to the carriage ( 3 ) is arranged and / or - in particular orthogonal to a suction surface ( 24a . 25a ) telescopic relative to the carriage ( 3 ) is arranged and / or - in particular oscillating about an orthogonal, which on a teat surface ( 24a . 25a ), opposite the carriage ( 3 ) is arranged. Board inserter according to one of the preceding claims, characterized in that the board inserter ( 1 ) a spreading device ( 12 ), through which the topmost board ( 6a ) of the board storage ( 1 ) from the second uppermost board (below) 6b ) is at least partially separable to adhere the second top board ( 6b ) on the top board ( 6a ) when lifting the top board ( 6a ), the spreading device ( 12 ) a spreading of the top board ( 6a ) is generated in particular by magnetic force or air nozzles and wherein the splayed top board ( 6a ) to the second uppermost board ( 6b ) is inclined, in particular at an acute angle (α). Board insert according to one of the preceding claims, characterized - that the top board ( 6a ) of the spreader ( 12 ) is placed obliquely in an acute angle (α) to a first horizontal (HZ1), - that between the splayed top board ( 6a ) and a longitudinal axis ( 23 ) of the third position (B-III) carriage ( 3 ) sets an acute angle (γ), which is smaller than an acute angle (β), which the longitudinal axis ( 23 ) of the third position (B-III) carriage ( 3 ) to a second horizontal (HZ2) occupies and - that the splayed top board ( 6a ) in particular approximately parallel to the longitudinal axis ( 23 ) of the third position (B-III) carriage ( 3 ) stands.

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