DE2251398A1 - DEVICE AND METHOD FOR CONVEYING FLAT MATERIAL WITH LATERAL DISPLACEMENT - Google Patents

Description

Patent attorneys
Dr. Ing.Walter Abitz
Dr. Dieter F. Morf
D \ Η3 ~ ^λ -A. Brauns' ¹ S *. October. 1972

Munich 86, Pietrcanauerstr. 28 ^ 95 9

Pilkington Brothers Limited

201-211 Martins Building, Water Street, Liverpool,

England

Device and method for conveying planar Good with lateral shift

The invention relates to the conveyance of two-dimensional Good and in particular a device for the lateral displacement of a forward conveyed planar Good.

When conveying two-dimensional goods, for example of glass, it is usually necessary to have a physical displacement of the two-dimensional good during '

of the conveying process «, this may be necessary, for example be to two adjacent panels, which are moved along a conveyor, to the side of each other to separate or to a sequence of tables or the like. 'Against a common date position on the one Side of the conveyor. This is useful, for example, if a sequence of elements is a two-dimensional Good is conveyed to a stacking station.

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The invention provides a device for the lateral displacement of a forward conveyed planar Good stated. This device has a conveyor for conveying a flat material that is in a substantially horizontal plane is, in a forward direction, a support that is in the conveyor track is provided and creates a gas cushion on which the flat material can be placed when it is Moved over the support, a device that can be optionally actuated v / earth to a movement of the planar To effect good in a direction transverse to the forward direction while the good is placed on the gas cushion is, and a date element to the lateral movement of the flat material in the mentioned transverse direction stop and thereby to be arranged in a desired lateral position.

Preferably the support is provided by a table with channels for gas to exit through a surface formed the same to produce the gas cushion mentioned. The channels can be mentioned with reference to Surface be inclined in such a way that gas escaping through it tends to be a superimposed on the gas cushion to force flat goods to the date element.

Preferably, "the means by which a Lateral movement of the flat goods brought about can be formed by an inclination device, to tilt the table in a direction transverse to the mentioned forward direction and thereby the mentioned Surface between a horizontal position and substantially in the same plane with the conveyor to move to the horizontal inclined plane. To this

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Vieise causes when a flat good on the gas cushion is supported, the downward inclination of the table, / that the two-dimensional good with a transverse component moves the table down to the date element.

So that the two-dimensional goods are not at a level below the plane of the conveyor slopes, it is preferable that the inclination means that edge of the Raises a table that is remote from the date element when a lateral shift is desired. Preferably the inclination device has an optionally actuatable lifting device, which is expediently by a pneumatic one. Working cylinder is formed. The compressed air source can be operated electrically by an Control valve can be controlled.

The data element preferably extends in parallel to the forward direction along one edge of the support. The date element can expediently consist of an endless driven element, for example a belt exist, part of which extends parallel to the aforementioned forward direction. In this way, the Movement of the endless driven element contributes to the movement of the planar material in the forward direction to be maintained once it has been created on the date element *

A detector is preferably arranged in front of the support so that it can display the position of a flat “good” its forward movement to the support, and the device that controls the transverse movement of the sheet-like goods is arranged so that it can receive an actuation signal from the detector. That way you can the table in sync with the arrival of a sideways to

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displacing planar goods are inclined. Preferably the table remains essentially in the same plane as the conveyor until at least 2/3 of the extensive good has moved onto the table.

Downstream of the support can be mentioned in the Forward direction a conveyor can be provided so that after the lateral displacement, the flat material on the downstream section of the conveyor can walk forward.

The conveyor can be set up so that it has a group of at least two elements of planar Conveys well side by side, with part of the conveyor extending alongside the support so that it can convey a flat material past the support, while another two-dimensional good over the support migrates and experiences a lateral displacement away from the mentioned part of the conveyor and then towards the conveyor Downstream of the support with a desired separation in the aforementioned transverse direction from the areal Good that is conveyed past the support is returned.

In this way it is two-dimensional for the two elements It is quite possible to continue to stay next to each other in the same plane after the lateral shift. but with a larger lateral separation between them. In some arrangements according to the invention the support is formed by two separate gas cushion devices which are arranged next to one another in the conveyor track and each of which has a date element on the side facing away from the other gas cushion device so that two pillows at the same time and in separate

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opposite directions can be moved apart, so that a flat good migrates over each gas cushion.

The device comprises a scribing device for scribing of a relatively large two-dimensional property ', to identify two smaller panels into which the large panel can be divided, with the conveyor is arranged in such a way that it places the scratched, large, two-dimensional item over the two tables with the scratched line conveyed between them so that the tables are inclined in order to blast the large two-dimensional good into the smaller panels mentioned and thus the smaller ones Boards on their tables move outwards in opposite directions to the respective date element.

The invention is also directed to a method of carrying out it directed to a lateral displacement of a forward moving flat material, in which the planar material lying in a substantially horizontal plane is conveyed in a forward direction is, a gas cushion is generated under the conveyed planar material, the material in a direction transverse to the mentioned forward direction is moved on the gas cushion and the lateral movement of the goods is stopped is to arrange it in a desired lateral position in the admonished transverse direction. The procedure can be used to bring about a desired separation between good elements and includes the Supply of gas through two separate tables, which are next to each other in a common horizontal plane, to create the respective gas cushions, and tilting the tables in opposite directions to to lift their inner edges, thereby placing the two on their

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respective gas cushion mounted elements in opposite directions transversely to the aforementioned forward direction to move. Furthermore, the method according to the invention can be used for a relatively large area good in two smaller good elements to divide and bring about a desired separation between the smaller Gutelemente in such a way that an incised, relatively large, two-dimensional item over the two tables with the incised line between is promoted, and the tables are inclined in opposite directions to accommodate the large, two-dimensional good to blast off along the scored line and thereby create two smaller good elements that are located on the move respective gas cushion in the opposite direction transversely to the aforementioned forward direction outward.

One embodiment of the invention is exemplified below and described in connection with the accompanying drawings, namely showing:

Fig. 1 is a plan view of part of a conveyor;

Figure 2 is a side view of the conveyor shown in Figure 1;

3 in a schematic representation and in an enlarged view Scale a "view in section along the line HI-III in Fig. 1;

FIG. 1 shows a plan view of an arrangement similar to FIG. 1 with two air beds next to each other;

Fig. 5 is a view in section along the line IV-IV in Fig. 4 and

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6 shows a sectional view of part of an air bed with a modified arrangement of the air channels.

The roller conveyor shown in Fig. 1 for conveying of two-dimensional property lies in a horizontal plane and consists of three successive conveyor sections 11a, 11b and lic. The upstream section 11a and the downstream side section lic are both similar and consist of a number of parallel ones driven rollers 12 which extend the full width of the conveyor track. The roles turn around horizontal axles and are provided with a number of tires 13 in sections along their length. The middle one Section 11b has similar roles IH, which extend over half of the conveyor. The other half of the conveyor consists of a compressed air housing 15, which normally lies flat and the top of which is slightly below the top perimeter of the tires 13 is located. This way one is on the air bed. Normally good element supported above the housing 15 essentially in the same plane as the good elements that rest on the tire 13. The inside edge 16 of the compressed air housing 15 is located at a small distance to one side of the center line of the conveyor and both sides of the compressed air housing extend parallel to the conveying direction of the glass, which is indicated by the arrow A in FIG. Along the main part of side 17 of the compressed air housing Extending adjacent the edge of the conveyor is a belt 18 that wraps around a closed loop is driven around through a gear connection 19 to the driven rollers 12. The belt 18 runs on his Ends around vertical axes 20 and 21 so that

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that part of the band which is immediately adjacent to the edge 17, in a vertical plane and slightly extends above the top of the compressed air housing 15. On the upstream half of the conveyor an optical display device from a light source is located upstream of the compressed air housing 15 Detector 22 and a reflector 23. The light source with detector 2 2 is on one side of the conveyor above of the rollers 12 arranged. The reflector 23 is halfway across the conveyor below the level of the rollers 12 arranged. The light source directs light to the reflector and if there is no glass panel in between, light becomes the Detector reflects back, giving a signal indicating the absence of a panel. If the Leading edge of an advancing panel on this half of the conveyor between the light source and the reflector passes, no reflected beam is detected by the detector 22 and the signal change is is used to indicate the position of the panel approaching the compressed air housing 15. As can be seen from FIGS. 2 and 3 results, the compressed air housing consists of a rectangular hollow box with a large number of gas outlets 24 running vertically through the top wall 15 of the Compressed air housing run. However, it is preferable to incline the gas outlet channels 24 so that this can be done through them leaked gas tries to displace a plate placed on the gas cushion to date band 18, for example, the channels forming an angle of about 30 degrees with the top wall 25 of the compressed air housing can. Such an arrangement is shown in Figure 6 in which like reference numerals are used. The interior of the housing is divided into four sections by partitions 26, 27 and 28. Each section of the

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The housing is supplied with compressed air through an inlet line 29. Compressed air is supplied to the housing with a Sufficient speed is supplied so that the air jets exiting through the outlet channels 24 form a gas cushion to support a board that wanders over the top of the compressed air housing. As in Fig. 3 shown, the compressed air housing is pivotably mounted about a horizontal axis which extends through the upper corners 30 of the housing adjacent the edge 17 extends. The bottom of the inside edge 16 "of the case is supported on a pneumatic lifting device 31, so that the inner edge 16 in the dashed line in FIG Drawn position can be raised so that the inner edge 16 'over the height of the neighboring Conveyor rollers is raised while the outer edge remains at the same height as the conveyor rollers « The elevator can tilt the housing at a 5 degree angle when actuated. The lifting device is attached to a rigid bracket 32 and the piston rod protruding from the lifting device 3 causes a rocker arm 34 to raise or lower a connecting rod 35 on the underside the inner edge 16 of the housing 15 is attached. The lifting device 31 consists of a double-acting Working cylinders, the opposite ends of which have separate compressed air inlet lines 36 and 37. Each of these lines contains a flow regulator. The two regulators 38 are connected to a main source of compressed air 40 connected via a solenoid valve 39. The solenoid valve 39 is via two control lines 41 and 4 2 and via one Timing device 46 is connected to the optical board detector 2 2.

In operation, two glass panels move lengthways next to each other

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of the upstream portion 11a of the conveyor. These both tables, which can be formed by a central division of a larger table, already have a slight lateral separation due to the use of an earlier separator. This can for example of the type described in British patent application 4,864 9/71. When the two Bring panels closer to the central section 11b of the conveyor, the panel on the left half of the conveyor is detected by the optical detector 22 and becomes an appropriate one Signal of the control device 46 supplied. The board on the left half of the conveyor comes up the air bed as indicated by the table labeled 4 3 in FIG. The panel on the right half of the The conveyor is conveyed on the rollers 14 past the compressed air housing. The control device 4 6 is adjustable for a time delay, so that the solenoid valve 39 and thus the lifting device 31 is actuated when two-thirds of the board has moved onto the compressed air housing IS. The lifting device causes then that the compressed air housing is inclined so that its inner edge 16 moves upwards. When the air bed is inclined downwards to the outer edge 17, the slides Panel to the edge 17 downwards, with its size of movement continuing so that it goes to the Unierstrom-side section lic of the conveyor is moved forward. The panel 43 moves along a path essentially as if through the line 44 in Fig. 1 until the board rests against the edge 18 which has a date area adjacent the edge of the compressed air housing 15 forms. Although the sideways displacement of the panel is not even along its length during of the entire sliding movement is when the panel reaches the position indicated in Fig. 1 with 45, their outer edge against the belt 18 parallel to the conveyor

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direction along the conveyor. The time control device 46 'is set in such a way that the lifting device 31 the compressed air housing lowers back to its original position before the leading edge of the glass panel Compressed air housing 15 leaves. In this way the board moves when it leaves the compressed air housing softly on the surface of the downstream portion lic of the sponsor. In the meantime, the board on the right side of the conveyor has also moved moved to the downstream section lic of the conveyor. The two boards then set theirs Movement along with a much larger lateral separation as well as the upstream section of the conveyor, the sequence of operations that cause the lateral displacement can be used for subsequent Panels that arrive at the air bed are repeated.

The embodiment described above is particularly suitable as a second stage of the lateral separation in a method of cutting glass ribbon into separate sheets and creating the desired ones Separation and alignment of the panels before arrival at the isolation station.

Since the air bed causes very little friction on the board moving over it, the amount of movement of the Moving over this slab will be sufficient to move them over the air bed and onto the downstream Section "of the conveyor. However, this movement can be caused by the drive movement of the data conveyor belt 18 are supported. As mentioned, the gas channels in the compressed air housing can be inclined so that the panel for Date band 18 is displaced, which helps to hold the board against the band.

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As can be seen from the foregoing, the lateral separation is achieved by operating the lifting device 31 optionally controlled. In order to reduce the length of the air bed to a minimum, it is desirable raise the inner edge of the air bed as early as possible, what «can be controlled by setting the timing device 4 6. However, if the Inside edge of the table is raised before approximately two-thirds of the glass sheet moves onto the table loss of control of the panel may result.

Although the embodiment described above has been referred to as particularly suitable to provide a A good lateral separation between two panels of similar size can be achieved by a central one Parts of a larger board have been cut, the invention is not limited to this and can can be used for lateral displacement of other two-dimensional goods.

In the example described above, there is only a single compressed air housing 15 in the path of the conveyor intended. However, in some cases it is desirable to have two compressed air housings 15a and 15b next to one another as shown in FIG. In this case, the pressure release housing extend over the full width of the conveyor so that two panels 50, 51 can move side by side along the conveyor, in such a way that one panel 50 migrates over the compressed air housing 15a and the other panel 51 over the Compressed air housing 15b. Each compressed air housing has its own date element in the form of a conveyor belt 18.

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_{g5 9} Ho 1398

The arrangement shown in Fig. 4 is that described in connection with Fig. 1 with the exception ₅₁ that two compressed air housings are used instead of a single one. The two housings 15a and 15b are separated from one another along their inner edges 52 and 53 so that both can be raised at the edges at the same time to incline the compressed air housings and cause the two panels 50 and 51 to move outward in opposite directions. The tilting device, which can be actuated by a signal from a single board detector located in front of one of the compressed air housings, is shown in greater detail in FIG. Each hollow housing is arranged on a frame 55 which has a pivot bearing 56 on a support 57. The inner edge of each frame 55 normally rests on a support £ 8, so that both housings lie in a common horizontal plane. A push rod 5 9 is connected to the inside edge of the frame 55, which is connected to a pneumatic lifting device 61 via an angle lever mechanism 6 0 To counterbalance the weight of the compressed air housings, a counterweight 62 is hinged to an arm 63 which forms part of the lever mechanism 60. Both pneumatic lifting devices 61 are connected to a common compressed air source so that both lifting devices can be used simultaneously for lifting The angle of inclination is about 5 degrees. Compressed air to form the air cushion is supplied to both housings through a common supply line 64 and flexible hoses 65 attached to tubes 66 adjacent to pivot bearing 56.

In operation, a glass sheet is cut along its center line by a scoring device known per se, the

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is shown schematically at 70, has been scored, fed centrally along the conveyor to the compressed air housings, that lie horizontally. When the glass moves onto the air housing, and each half of the Panel lies over one of the compressed air housings, the housings are inclined and both halves in opposite directions Moved directions outwards. Both halves move forward and in certain on the air cushions lateral position under the action of the straps 18, as described in connection with FIG. Normally the panel is blasted off along the scored center line before it reaches the compressed air housing, see above that the cut is made between the two halves. The detonation can be done by detonating devices known per se, for example by the rollers 67, 6, 8 and 69 shown in FIG. However, Ds is It is not essential that the cut is opened before the compressed air housing is reached. The scratched plaque can be conveyed via the compressed air housing in such a way that the central scored line is between the space the inside edges of the air housings so that when the housings are tilted the panel around the scored Line is bent to blast off the glass and open the cut along the score line. The two Move smaller panels obtained in this way by dividing the relatively large panel then outwards in opposite directions, as described above. This way both the blasting off as well as the lateral separation through the sole use of the tiltable air beds are executed. Instead of an optical detector as shown in Fig. 1, a mechanical device, For example, a spring-loaded finger can be placed in the path of the advancing glass sheet, to determine the leading and / or trailing edge of the successive panel.

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Claims (5)

«1959. 2251399 Patents η s ρ r ü che: / 1. Device to move one forward sideways V _ ^ / funded planar property, with a sponsor for conveying a two-dimensional good that lies in a • .in a substantially horizontal plane, in a Forward direction, characterized by a support (15) in the conveyor track, which can be used to generate a gas cushion on which the flat Well (43) can be deposited when it is promoted over.das Auflager, a device (31), the can optionally be actuated to move the sheet-like material in a direction transverse to that mentioned To bring about a forward direction while the flat material is supported on the gas cushion, and a Date element (18) for stopping the lateral movement of the sheet-like item and thereby in to arrange a desired lateral position in the aforementioned transverse direction. 2. Apparatus according to claim 1, characterized in that the support is formed by a table (15), in which channels (24) for the exit of gas through a surface (25) thereof to form the gas cushion are provided. 3. Device according to claim 2, characterized in that - 15 - 30981 9/0236 that the channels (24) with respect to the mentioned surface (25) are inclined so that through them escaping gas has the tendency to produce a flat good deposited on the gas cushion To displace Datuir.elernent (18). 4, device according to claim 2 or 3, characterized in that the device (31) at their actuation causes a transverse movement of the planar material, is formed by an inclination device (31, 33, 34, 35) which the table can be tilted in a direction transverse to the aforementioned forward direction » to thereby the mentioned surface Z (25) between a horizontal position in which it is in essentially in the same plane as the conveyor (11a, 11b, lic), and one to the horizontal inclined position to move. 5. Apparatus according to claim 4, characterized in that the inclination device (31, 33, 34, 35) is arranged so that the edge (16) of the table remote from the date element (18) is raised. 6, device according to claim 4 or 5, characterized in that that the inclination device (31, 33, 34, 35) is an optionally operable lifting device (31). ₁₆ ^ß ÄD ORIGINAL 309819/0236 7. Apparatus according to claim 6, characterized in that the lifting device (31) by a pneumatic Working cylinder is formed, which is controlled by an electrically operated control valve (39) will. 8th.' Device according to the preceding claims, characterized in that the date element (18) is extending parallel to the aforementioned forward direction along one edge of the support (15). 9. Apparatus according to claim 8, characterized in that the date element (18) is driven by an endless one Element, for example · by a band (18), of which a part extends parallel to the aforementioned forward direction. 10, device according to the preceding claims, characterized by a detector (22) which is arranged in front of the support (15) and is used to detect the Position of a two-dimensional good when moving forward to determine the support (15), and the device (31) through which a transverse movement of the planar material is brought about, is arranged so that it receives an actuation signal from the detector (22) can accommodate. . 11. Device according to the preceding claims, there- " - 17 - 3098 19/02 36 bad original characterized in that the conveyor (11a, lic) extends upstream and downstream of the support (15) in the aforementioned forward direction, so that a two-dimensional good of, the upstream side Conveyor (lla) on the release (15) can migrate, on which it experiences a lateral displacement, and then from the support to the Downstream conveyor (lic) for onward movement in the aforementioned forward direction, 12, device according to claim 11 for establishing a desired separation between flat outer elements, characterized in that the ¹ conveyor (LIa) is set up in such a way that it can convey a group of at least two good elements side by side, and one part (lib) of the conveyor extends alongside the support (15) so that it can convey a flat material past the support (15), while another flat material wanders over the support (15) and is subjected to a lateral displacement of the mentioned part of the conveyor in order to be returned to the conveyor (lic) below the support in the case of a desired separation in the aforementioned transverse direction from the flat material conveyed past the support. ■. 13. Device according to claims 1-11, characterized in that that the support (15) is formed by zi.'ei separate gas cushion devices (15a, 15b) is arranged side by side in the conveyor track - ¹⁸ - ORIGINAL BATHROOM 309819/0236 beef ^; : r "'each gas cushion device a Daturnele-.".-_. 'f that side of the device has :: -3 he turned away from the other gas cushion device ji; _1; o that there are two elements of two-dimensional good? : ■ - :. i: I can be moved apart and in opposite directions, where e.in! ; Which wanders every gas cushion. 14. Performed: according to claim 13, characterized in that the. Qt. Issenvorrichtungen are formed by two tables (lüa _s ILl-- ', in each of which channels (^ for the escape of gas to form a gas cushion ;: are provided, which tables lie side by side ir; a common horizontal plane, and a Vc- device (61) for raising the inner edges (5 2, the two tables is provided 63. so that both Tisciie ^ r, opposite directions may be inclined ₉ MH. iadurch an outward movement of the Gutelemente to your jcw iligen table in opposite directions to the to bring about the respective dural element. 1.5. Apparatus according to claim 14, characterized by an incision bin (70) through which a relatively large board can be scratched in order to designate two smaller boards into which the large board can be divided, the conveyor (11a ) is rearranged in such a way that it conveys the incised large board, etc. "- n \ e two Ti solve (15a, 15b) with the incised line in between, so that the ti scha can be inclined" around the large board the. circled smaller panels to be sprayed off ^ and 3 0 ίY Ö 1 9/0? 3, G BAD 959 a movement of the smaller panels on the respective table outwards in opposite directions bring about the respective date element (18). 16. Method for lateral displacement of a forward conveyor planar goods, characterized in that the planar goods which are in an im essential horizontal plane, is conveyed in a forward direction, a gas cushion below the subsidized large-area goods are produced, the sheet-like material is moved in a direction transverse to the aforementioned forward direction while it is supported on the gas cushion, and the lateral movement of the sheet-like material is stopped in order to to arrange this in a desired lateral position in the aforementioned transverse direction. 17. The method according to claim 16, characterized in that a table through which gas to form the mentioned gas gravel is supplied, is inclined, in order to move the two-dimensional material in a direction transverse to the aforementioned forward direction. 18. The method according to claim 3 7 for bringing about a desired separation between elements of a planar. Good, characterized in that gas through zv: egg is fed to separate tables that are next to each other in a common horizontal plane - 20 - BAD ORIGINAL 3098 19/0236 41 959 lie to create a gas cushion at a time, and lift the tables in opposite directions their inner edges are inclined, thereby creating two elements of a two-dimensional good, which are on the respective Gas cushions are supported, outward in opposite directions transverse to that mentioned Move forward direction. 19. The method of claim 18 for dividing a · ver ~ proportionately large table in two smaller tables and causing a desired separation between the two smaller panels, characterized in that that an incised, relatively large table over the two tables with the incised line between this is conveyed, and the tables are tilted in opposite directions to to blast off the large board along the scored line and thereby to produce two smaller panels which are oriented in opposite directions on the respective gas cushion move outwards transversely to the forward direction mentioned. BATH ORIGINAL - 21 - "■ 309819/0236 L e r s e i t e