FI83504C - ANORDNING ATT INRIKTA GLASSKIVOR I PRODUKTIONSLINJE. - Google Patents

Description

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Device for aligning glass sheets on a production line -Anordning att inrikta glasskivor i produktionslinje.

The invention relates generally to a device for aligning glass sheets in a production line and in particular to a device for aligning sheets in the bending phase of windscreens.

The movement of glass sheets along the production line presents a problem for proper alignment of the sheets in one or more workstations. One prior art alignment device is disclosed in U.S. Patent No. 3,638,564, in which a glass sheet is moved by a belt conveyor to an alignment station where a pair of edge gripping members and a pair of end gripping members guide the glass sheet longitudinally and laterally on a conveyor belt. Suction is then used to hold the glass sheet in place as the conveyor belt moves the glass sheet to a workstation where a predetermined pattern is implemented by the silk wire method. Each of the edge gripping members is hydraulically operated and its relative position can be adjusted manually by turning the threaded pin in the threaded sleeve to which the hydraulic cylinder is hingedly attached.

U.S. Patent Nos. 3,701,643 and 3,992,182 relate to glass sheet alignment devices moving on a glass sheet production line conveyor. A pair of glass edge gripping members are located on opposite sides of the conveyor and move with the conveyor at the speed of the glass sheets. The gripping members are mounted on reciprocating carriages that move into and out of grip with opposite edges of the glass sheet to align the glass sheets.

U.S. Patent No. 4,850,744 discloses a device for positioning a windshield as it moves between two conveyor lines. The positioning rod is manually adjustable with a threaded shaft, allowing windshields of different lengths to be positioned. The ends of the positioning rod are equipped with a pair of positioning plates. The windscreen is moved by the first conveyor to a holding device which rotates the windscreen 180 ° and moves it laterally, placing it at the end of the second side-moved conveyor. During lateral displacement, one edge of the windshield comes into contact with one positioning plate to position the windshield when the windshield is placed on another conveyor.

U.S. Patent No. 4,367,107 relates to an apparatus for aligning a pair of bent glass sheets in an assembly station. The stacked glass sheets are moved to the assembly station and the guide rollers are attached to the top and bottom edges and end edges of the glass sheets. Both plates are secured with suction members and separated vertically while a flexible film layer is installed between them. The glass sheets are reassembled to form a sandwich structure to be laminated.

U.S. Patent Nos. 4,440,288 and 4,488,846 relate to sensors for controlling the distance between objects to be moved between two conveyors. In U.S. Patent No. 4,440,288, dough containers are collected in a gate located at the end of a group conveyor fed by a discharge conveyor. The container sensor is moved along the group conveyor to determine when the moving container is at a predetermined distance from one or more stopped containers so that the speed of the conveyor can be reduced below the rate at which the rising dough collapses when the moving container collides with the stopped container. U.S. Pat. No. 4,488,846 relates to a device for controlling the movement of an auxiliary conveyor feeding glass sheets to a main conveyor.

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The auxiliary conveyor is stopped until the distance between the last plate on the main conveyor and the next plate on the auxiliary conveyor corresponds to a predetermined distance, at which point the auxiliary conveyor is started to transfer the stopped glass plate to the main conveyor.

U.S. Patent No. 4,493,412 relates to a device for positioning glass sheets at a transport station prior to removal by a robot. The leading edge of the glass plate is attached to a fixed stop pin. A pair of transversely displaceable planes then proceed to secure the opposite side edges of the product. Finally, the adjustable pins are moved vertically and longitudinally into engagement with the rear edge of the product to align the product in a precise position with respect to a fixed reference point.

U.S. Patent No. 4,458,628 relates to a turntable for supporting and moving glass panels to the edge of a panel relative to a robot applying an adhesive. The glass panel is delivered to the turntable by a conveyor. The panel is placed on the turntable by means of several positioning shoes which are used hydraulically vertically to fasten the extreme edges of the glass panel. The panel is then grasped with suction cups and the shoes are pulled back before the turntable begins to turn.

In the production line of laminated unbreakable windshields, the outer curved plate, the inner curved plate and the curved cover plate are stacked together with the intervening plastic layers. These glass sheets must be properly oriented prior to the lamination process to provide a suitable edge alignment to receive the sealing ring. Because the glass sheets are curved, they are formed so that their length is shortened from the outer sheet to the inner cover sheet so that the edges can be aligned. All of the prior art methods presented above would have difficulty in correctly aligning three plates of different sizes.

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The present invention is an apparatus for aligning glass sheets of different sizes when transferring sheets in a predetermined order to a furnace inlet, which apparatus is characterized by the features set forth in the characterizing part of claim 1. The plates are oriented transversely to the direction of movement. The oven heats the glass sheets to a softening temperature suitable for bending. A pair of vertically extending stops engage the leading edge of the glass plate in front of the opening leading to the oven. A pair of side pushers are used horizontally to engage the opposite edges of the glass sheet to align the glass sheet with a predetermined position. The pushers and front stops are then removed and the conveyor moves the plate through the oven. The distance between the side pushers is automatically adjusted by a stepper motor to compensate for the different lengths of the glass sheets.

The device also includes an inspection method and sensors to respond to the absence or misalignment of the glass sheets. Sensors mounted next to the oven inlet, on the sides of the conveyor, detect the absence of a plate and give an audible signal indicating that the order of the glass plates in the correct order is disturbed. Sensors in the bending area detect whether the components entering the bending area are skewed. If the assembly parts are skewed, the front stops are automatically adjusted to realign the glass sheets as they enter the oven. The sensor at the inlet of the oven can also be used to detect a mark on the glass plates to determine that they are in the correct order and / or if any plate is missing. Sensors can be placed in front of the oven to detect skew problems and control the position of the front stop to eliminate the problem before the glass sheets reach the bending range.

Accordingly, it is an object of the invention to provide an alignment device which facilitates the use of conventional sealing rings for lamination in stacked curved windshield assemblies.

Another object of the invention is to provide a device for aligning glass sheets, which device automatically adapts to sheets of different sizes as they move forward on the assembly line.

In the accompanying drawings:

Fig. 1 is a top plan view of a portion of a windshield bending apparatus comprising an alignment device according to the present invention; Fig. 2 is a perspective view of the alignment device of Fig. 1; top plan view of the side alignment mechanism of the alignment device shown in Figures 1 and 2, Figure 5 is a cross-section along line 5-5 of Figure 3, Figure 6 is a cross-section along line 6-6 of Figure 3, Figure 7 is a cross-section along line 7-7 of Figure 3, Figure 8 is a cross-section along line 8-8 of Figure 5, Figure 9 is a cross-section along line 9-9 of Figure 4, Figure 10 is a cross-section along line 10-10 of Figure 9, and Figure 11 shows a control system for adjusting stop members.

According to the present invention, there is provided an apparatus for aligning sheets of material of different sizes relative to a reference point, the apparatus having at least two stop pins positioned in a plane where the sheets of material are to be aligned to engage the leading edges of sheets of material in said plane to align said sheets with a reference point; at least one lateral alignment member positioned in said plane at a distance of at least two predetermined distances from the reference point, gripping the end edges of the sheets of material in said plane to align said sheets with said reference point, said member automatically selecting one of said predetermined ; and means for moving said side alignment member relative to said reference point in response to said auto-selecting member.

Figure 1 shows a part of a windscreen bending plant comprising a first or feed conveyor 20 which feeds the glass sheets to the inlet of a furnace 21, which furnace is intended for heating the glass sheets to a bending temperature. As the plates leave the furnace 21, they arrive at a bending station 22, where they are formed by a bending device 22a suitable for the desired curvature and transferred by a second conveyor 23 to a cooling station (not shown). As shown in Figure 1, the glass sheet 24 is conveyed by a feed conveyor 20 to the inlet of the alignment device 25 according to the invention. The second glass sheet 26 has just exited the alignment device 25 and is about to arrive in the oven 21. The alignment device 25 positions the glass sheets so that they arrive at the bending station 22 in the correct orientation and leave the oven 21 in the same orientation. Accurate alignment of the individually sized sheets with respect to the bending device 22a is necessary to ensure that, after shaping, the sheets of each batch are properly nested with their edges aligned to ensure a good fit for the sealing ring used in the lamination process.

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As shown in Figure 2, the conveyor 20 may comprise a plurality of rollers 30 aligned horizontally, leading to the inlet 31 of the furnace 21. The mechanism for driving the rollers is conventional and is not shown. In Fig. 2, the glass plate 26 is shown in the alignment device 25, and the glass plate 24 is shown as the next plate in the glass plate series, which will be explained below.

The alignment device 25 comprises a leading or leading edge positioning mechanism 32 and a side or end edge positioning mechanism 33, both of which are shown without a portion of the associated guide mechanism, to better illustrate the adhesion of their glass sheets 26 to the edges. Glass sheets 24 and 26 are depicted as elements of a laminated windshield. For example, the glass sheet 26 may be an outer glass having a lower edge 34 and an upper edge 35 and side or end edges 36 and 37. The glass sheets are oriented so that the lower edge 34 is the leading edge as the glass sheet moves forward on the production line. It is desirable to position the glass sheet 26 so that the end edges 36 and 37 are equidistant from the imaginary centerline 38 extending through the furnace 21 and the bending device 22a to ensure that when stacking the glass sheets for lamination the edges are properly aligned to receive the sealing ring. For example, the glass sheet 24 may be an inner glass that is stacked on top of the glass sheet 26 at an assembly station (not shown) to form a sandwich structure with a plastic film therebetween. If a breakable windshield assembly is made, a third glass sheet, which is a removable protective sheet, is stacked on top of the glass sheet 24, together with an unbreakable film therebetween, to complete the window assembly.

As shown in Figure 2, the leading or leading edge positioning mechanism 32 comprises a grooved shaft 40 positioned parallel to the rollers 30 and above the trajectory of the glass sheets 24 and 26 on the rollers 30. The shaft 40 is rotatably supported, as shown below, and extends through a pair of support bearers 41 to which a pair of front stop assemblies are connected. Although two front stop assemblies are shown, any suitable number of front stop assemblies may be used. Each support bearing 41 is mounted on the upper surface of the front stop slide mounting plate 42. Mounted on the lower surface of each mounting plate 42 is a sliding mechanism 43 driven by an electric motor 44. A stop tube 45 extending vertically downwardly from the sliding mechanism 43 is usually positioned equidistant from the centerline 38 to engage the lower or conductive edge 34 of the glass plate 26.

Connected between the support bearings 41 to the shaft 40 is one end of the control rotary lever 46. The other end of the lever 46 is connected to a piston rod extending from the air cylinder 47. Although not shown in Figure 2, the air cylinder 47 is fixed with respect to the mounting of the shaft 40. When the air cylinder 47 is used to pull the rod back, the lever arm 46 rotates the shaft 40 and the stop mechanism connected thereto counterclockwise as seen from the end of the shaft 40 closest to the viewer. The stop tubes 45 are moved away from the lower or conductive edge 34 of the glass sheet 26, thus allowing the glass sheet 26 to advance along the conveyor 20 to the inlet 31 of the furnace 21.

The side or end edge positioning mechanism 33 comprises a pair of oppositely threaded shafts 50 and 51 connected together by a switch 52. The shafts 50 and 51 are rotatably mounted on a support device (not shown) shown below.

An electric stepper motor 53 is connected to the free end of the shaft 50. Each of the shafts 50 and 51 is threadedly connected to a support bearing 54. Each support bearing 54 is mounted on the upper surface of the side pusher mounting plate 55. The air cylinder 56 is mounted on the lower surface of the mounting plate 55 and the arm of the air cylinder 56 is connected to the side pusher plate 57, which extends substantially parallel to the center line 38. When air cylinders 56 are used to pull the arms back, the plates 57 engage the side or end plates of the glass plate 26 to position the glass plate relative to the centerline 38. The stepper motor 53 can be used to rotate the threaded shafts 50 and 51 to adjust the distance between the plates 57 to a predetermined number of plates 57 for plates of different lengths.

Referring to Figures 3 and 5 to 8, the leading or leading edge positioning mechanism 32 is shown in even more detail. The glass sheet 26 is supported by a plurality of rollers 30. The lower or conductive edge 34 of the glass plate 26 is moved toward the furnace until it engages the lower ends of the stop tubes 45. Each stop tube 45 is at least hollow at its lower end enclosing a coil spring 60. The lower end of the spring 60 rests on the upper end of the stop pin 61. The lower end of the stop pin 61 extends from the lower end of the tube 45 to engage the edge 34. The stop pin 61 is usually formed of a material that does not scratch the glass sheet 26, such as nylon. The spring 60 and the stop pin 61 can be held in the tube 45 in any conventional manner that allows the pin to be forced into the tube against the spring. Such an operation prevents the glass sheets from breaking if the tube 45 is lowered so that the lower end 61 of the stop pin engages the upper surface of the glass sheet rather than the conductive edge. The lower end of the tube 45 is located above the upper surface of the plane of the glass sheet 26.

The top surface of the stop tube 45 is attached to a movable slide 62 in the slide mechanism 43. The slide mechanism 43 is commercially available as "Velmex Unislide # S-B2503W1J" from Velmex Inc., E. Bloomfield, N.Y., USA. The connected electric motor may be a Bodine type "K" model # 730 supplied by Bodine Electric Co., Chicago, 111, USA. The sliding mechanism 43 and the motor 44 can be used to selectively position the stop pin 61 to determine a reference point at which the glass sheets are stopped before entering the furnace.

As shown in Figures 5 and 8, the upper end of the stop tube 45 is threadedly connected to a drive shaft 63 connected to the motor 44. As the motor 44 rotates the drive shaft 63 in one direction, the stop tube 45 the ink pin 61 closer to the position of the furnace opening. As best shown in Figure 8, a trapezoidal slider 64 is connected below the attachment point of the drive shaft 63 below the drive shaft 63. The slider 64 engages a correspondingly shaped groove 65 formed in the bottom surface of the slider 43. The groove 45 extends parallel to the longitudinal axis of the drive shaft 63 to support and guide the stop tube 45 during the transition.

The mounting plate 42 and the support bearing 41 are connected to the grooved shaft 40 for rotation. As shown in Figure 5, the splined shaft 40 is rotated clockwise to move pysäytinputki 45 and the stopper pin 61 in the direction of arrow 66, a pistekatkovii the position shown. Thus, the stop pin 61 is moved out of contact with the conductive edge 34, allowing the conveyor rollers 30 to move the glass plate 26 into the oven opening. The degree of rotation of the leading or leading edge positioning mechanism can be adjusted by contact between the stroke length of the air cylinder 47 and / or the lower surface of the mounting plate 42 and the upper surface of the tubular circumferential member 67.

As shown in Figures 3 and 5, the oblique detection sensor holder 68 extends transverse to the direction of movement of the glass sheets on the conveyor. The holder 68 is connected to one end of the bevel detection holder 69, the other end of which is connected to the bottom surface of the frame member 67. The support bearing 70 is connected to the upper surface of the frame member 67 above the mounting bracket 69 and supports a rotatably grooved shaft 40. A pair of sensors 71 are mounted at opposite ends of the sensor holder 68. The sensors 71 may typically be commercially available photoelectric elements and are utilized as follows to determine if the glass sheet 26 is skewed after being released through the stop tubes 45.

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As shown in Figures 3 and 6, the mounting bracket 72 extends from the side surface of the frame element 67 to form a hinge point attachment to the lower end of the air cylinder 47. The air cylinder 47 has a piston rod 74 terminating in a fork hingedly connected to one end of the grooved pivot lever 46. At one end of the lever 46 is a removable body 76 which can be flushed to the body by a pair of capscrews or brackets 77. The body and the removable body 76 form an opening for receiving the grooved shaft 40. One or more retaining screws 78 may be threaded into the removable body 76 or the body of the lever 46 and engaged with the grooved shaft 40 to lock the grooved shaft 40 and the lever 46 together for pivoting. As the air cylinder 47 retracts the piston rod 74, the lever arm 46 and the grooved shaft 40 pivot clockwise to the position shown by the dotted lines. The ends of the grooved shaft 40 are pivotally mounted on the upper surface of the frame member 67 in a pair of support bearings 79, which are similar to the center support bearings 70.

The stop tubes 45 further have means for positioning them in a direction transverse to the centerline 38. The first adjusting shaft 80 is connected at one end to the leftmost of the mounting plates 42 in Fig. 3. The connection can be made by any suitable member, such as a pair of spring rings. The adjusting shaft 80 extends through an opening formed in the second mounting plate and terminates in the adjusting member 81. The adjusting member 81 is connected to the upwardly directed edge of the L-shaped mounting plate 82. A substantially horizontal mounting plate 82 is attached to the top surface of the frame member 67, and the plate 82 extends transversely to the longitudinal axis of the frame member 67.

The locking mechanism 83 is mounted on the plate 82. The shaft 83 passes through the locking mechanism 83 and can slide freely therein when the locking mechanism is released. Thus, the adjustment shaft 80 can be used to move the left mounting plate 42 and the stop tube 45 connected thereto along the grooved shaft 40 to position the stop tube 45 relative to the centerline 38. Once the desired weapons have been reached, the locking mechanism 83 can be moved to the locked position to prevent the stop tube 45 from moving forward. The second adjusting shaft 84, shorter than the adjusting shaft 80, is attached at one end to the right-hand side of the mounting plates 42. The shaft 84 passes through a locking mechanism 85 similar to the locking mechanism 83 mounted on the mounting plate 82. After passing through the vertical edge of the mounting plate 82, the adjusting shaft 84 terminates in an adjusting member 86 similar to the adjusting member 81.

As shown in more detail in Figure 7, the adjusting member 86 comprises a slider 87 which is substantially square in cross section. The adjustment shaft 84 extends through and is secured to the center of the slider 87. The slider 87 is supported on a substantially U-shaped trough member 88, the upper edges of which are bent to support the slider 87. The pin 89 protrudes from the upper surface of the slider 87 and is provided with a knob 90 to form a hand position for manually moving the slider 87 along the longitudinal axis of the trough 88.

Figure 4 shows a tubular frame member 67 and all previously associated members removed to show a side or end edge positioning mechanism 33. Referring to Figures 3, 4 and 9, the ends of the frame member 67 are connected to the upper edge of each of the downwardly extending plate members 100. As shown in Fig. 9, the lower edge of the plate member 100 connected to the right end of the frame member 67 is connected to one end of the substantially horizontal extending support plate 101. The support post 102 extends downwardly from the lower surface of the support plate 101 and joins a support beam (not shown) or other support structure of the alignment device 25 and associated conveyor 20. The opposite end of the frame member 67 is supported in the same manner.

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Referring to Figures 4 and 9, a first threaded drive shaft 103 extends through a support bearing 104 mounted on the plate member 100. A digital counter 105 may be connected to the drive shaft 103 to provide an indication of the relative pivot position of the drive shaft 103. The calculator 105 may be any suitable mechanical or electronic commercially available device. The right end of the drive shaft 103 is connected to a stepper motor 53 mounted on an L-shaped plate 106 connected to the top surface of the support plate 101. The opposite end of the drive shaft 103 is connected to a switch 52 which in turn is rotatably held in a central support plate 106 which may be connected to a frame member. 67 lower surface.

The air cylinder 56 is attached to the lower surface of the mounting plate assembly 107. The air cylinder 56 comprises a piston rod 108 connected to a side or end edge positioning mechanism 33. The positioning mechanism 33 comprises a substantially T-shaped plate formed in two parts. The top of the plate 109, as better shown in Figure 10, has a trapezoidal vertically extending flange and a horizontally extending elongate flange. The lower surface of the horizontal extending flange is attached to the upper surface of the horizontal extending flange of the lower part 110 of the plate. The lower part 110 has a vertically downwardly extending flange to which the side pushers 111 are connected by means of a plurality of fasteners 112. The lower edge of the side pusher 111 extends below the plane where the glass sheets move on the rollers 30. Therefore, the lower edge is cut to avoid contact with the rollers 30, thus ensuring that the side pushers 111 make full contact with any edge of the glass sheet.

As shown in Figs. 9 and 10, a threaded support bearing 113 is attached to the upper surface of the mounting plate assembly 107. The support bearing 113 rotatably engages the drive shaft 103 so that rotation of the drive shaft 103 causes the support bearing 113 to move along the longitudinal axis of the drive shaft. The threaded support bearing 113 is further supported and guided by a pair of guide shafts 114 83504 extending between the plate members 100 and also supported on the central support plate 106. Thus, the support bearing 113 can freely slide along the guide shafts 114 when driven by the drive shaft 103 and the stepper motor 53. through. The threaded support bearing 113 is attached to one end of the mounting plate assembly 107 and the support bearing 115 is attached to the other end of the mounting plate assembly 107. The support bearing 115 is slidably mounted on the steering shaft pair 114 but does not engage the drive shaft 103.

As shown in Figures 4 and 10, the sequence sensing member 106 may be mounted at one end of the plate 117 with the other end of the plate attached to the support bearing 115. The sequence sensing member may be a commercially available photocell positioned to detect identification marks on each glass plate. Although the two sequence identification members are shown, they can be used in any number depending on how many characters are desired and where they are placed on the glass plates. Thus, for example, one sensing member may be mounted on a plate extending from the frame member 67 near the oblique detection mounting holder 69. Such a sensing member may further be provided with position adjusting means such as a sliding mechanism 43.

In operation, the side or end positioning mechanisms are moved to positions on either side of the centerline by rotating the drive shaft 103 and drive shaft 118. The stations correspond to a distance from the centerline 38 equal to half the length of the glass sheet to be aligned plus the stroke of the air cylinder 56 piston 108. The stop tubes 45 are initially positioned utilizing the adjusters 81 and 86 and then locked in selected positions utilizing the locking mechanisms 83 and 85. The piston rod 74 of the air cylinder 47 is in the extended position to hold the stop tubes 45 in the desired vertical alignment. The glass plate 26 is 83504 is then moved by means of conveyor rollers 30 against the stop pins 61. The air cylinders 56 are actuated to bring the side pushers 111 into contact with the end edges 36 and 37 of the glass sheet 26. Thus, the glass sheet 26 is aligned with respect to the centerline 38, ready to be moved to the furnace 21. If the glass sheet deviates from the centerline 38 as it passes through the oven 21, such deviation can be corrected by moving the alignment device 25 as a unit exactly transversely to the centerline 38.

The air cylinders 56 are actuated to retract the side pushers 111 and the air cylinder 47 is actuated to retract its piston rod to rotate the stop pins 61 to a position above the glass plate 26. The conveyor 20 then moves the glass plate 26 over the rollers 30 into the opening 31 of the furnace 21. The stepper motor 53 is started to adjust the position of the side or end edge positioning mechanism 33 for the next glass plate slightly shorter than the glass plate 26 just aligned. Assuming that the first glass plate is the outer surface plate of the windshield, the second glass plate is the inner surface plate, and the third glass plate is the cover plate, the distance between the positioning mechanisms 33 becomes progressively smaller. When the third glass plate is aligned, the stepper motor 53 operates in the opposite direction to widen the distance between the positioning mechanisms 33, in preparation for aligning the second outer surface plate as the sequence begins to repeat.

Figure 11 shows a control system for automatically adjusting the stop tubes 45. The pressurized fluid reservoir 121 is connected by a pipe 122 to a valve assembly 123. In fact, although the valve assembly is shown as a single element in the figure, the valve assembly 123 may be a separate valve for each controllable cylinder. The valve assembly 123 is connected to the air cylinder 47 by a pipe 124 and to the air cylinders 56 by a pair of pipes 125. A central control element 126, such as a programmed general purpose computer, is connected by a line 127 to a valve assembly 123. The computer 126 provides an electrical control signal along line 127 to control the supply of compressed air from tank 121 to air cylinders 47 and 56 and alternating air venting.

The computer 126 is further connected to the stepper motor 53 by a wire 128. Thus, the computer can control the start-up of the stepper motor 53 to suit any desired series of glass sheets of different lengths. The computer 126 is further connected by a pair of wires 129 to the sequence sensors 116. Thus, the computer 126 receives from the sensors 116 the information needed to provide control signals via a wire 128 to the stepper motor 53.

The computer 126 is connected by a pair of wires 130 to electric motors 44 which use sliding mechanisms 43. The computer 126 is further connected to the alignment sensors 71 by a pair of wires 131. Thus, the computer 126 receives the information from the alignment sensors 71 required to produce a control signal on the conductors 130 to start the motors to move the stop tubes 45 to their proper positions. As described above, a pair of oblique sensors 132 may be located on the bending station 22 to detect the alignment of the glass sheets with respect to the bending device 22a. The skew sensors 132 are connected by a pair of wires 133 to the computer 126 to send the alignment information back to the computer 126. Thus, the computer may also take into account the skew information from the bending station to determine the correct control signals to send to the electric motors 44 to adjust the stop tubes 45.

Claims (13)

Device (25) for aligning glass sheets (24, 26) of different sizes in relation to a reference point (38), said device having at least two stop pins (61) located in a plane in which the glass sheets (24, 26) shall directed, for engaging the leading edges (34) of said glass sheets in said plane, to align the sheets (24, 26) relative to the reference point (38); and at least one lateral alignment member (33), characterized in that the lateral alignment member (33) is located in said plane at a distance of at least two predetermined distances selected from the reference point (38), for engaging the glass panels (24, located in said panel). 26) end edges (36, 37) for aligning the discs in relation to the reference point (38); and that the device additionally has a means (116, 126) which automatically selects one of the predetermined distances to bring the various Large glass sheets in a predetermined order to the stop pins; and means (53) for moving the side alignment means (33) in relation to the reference point (38) in response to the auto-selecting means. 2. Apparatus according to claim 1, characterized in that the reference point (38) is a center line of movement of the glass sheets (24,26). Device according to Claim 1 or 2, characterized in that the side alignment means (33) comprises an air-cylinder means (56) which is attached to the moving means (53) and which comprises a piston rod attached to a side displacement disk (57), and means (126) for driving the air cylinder means (56), wherein the side displacement disk (57) engages on the gable edge (36,37) of the glass slide, where the air cylinder means (56) is used and is detached from the gable edge (36,37), where the air cylinder means (56) ) are not in use. 21 83504 4. Apparatus according to any one of claims 1-3, characterized in that said moving means (53) comprises a sensor (116) for observing the glass sheets (24, 26) and for generating an order signal corresponding to the disk (24). 26) identification, and the automatically selecting means (126) responds to the order signal to control the moving means (53). 5. Device according to claim 4, characterized in that the automatically selecting means (126) responds to the absence of the order signal to generate an alarm signal corresponding to the absence of the glass plate (24,26). Device according to any one of claims 1-3, characterized in that the moving means (53) comprise a support bearing (54) attached to the lateral alignment means (33), the supporting bearing (54) having a screw connection engaging a threaded shaft (50,51). , and a stepper motor (53) for rotating the shaft (50), the stepper motor (53) being provided with an output shaft coupling to the threaded shaft (50,51) and for operation being automatically coupled to the selecting means (126). Device according to any of claims 2-6, characterized in that two stop pins (61) are placed on opposite sides of the center line (38). Device according to claim 7, characterized in that it comprises means (81) for moving at least one of the stop pins (61) along a predetermined route substantially transverse to the center line (38). Device according to claim 8, characterized in that the means (81) for moving the stop pins (61) comprise means (83) for securing them in a selected position on the predetermined route. 22 83504 10. Device according to claim 8 or 9, characterized in that it comprises means (43, 44) for moving at least one of the stop pins (61) along the predetermined route substantially parallel to the center line (38). Device according to claim 10, characterized in that it comprises a sensor means (71) for observing the front edge (34) of the glass sheet (24, 26) and for generating an observation signal, and a control means (126) for responding to the observation signal. and driving the means (43, 44) which moves the stop pins (61) along the predetermined route substantially parallel to the center line (38). Device according to claim 11, characterized in that the sensor (71) is placed next to a stop pin (61). Device according to claim 12, characterized in that the sensor (71) is at a distance from a stop pin (61) in the direction of the path of movement of the discs. Device (25) according to any of claims 1-13, characterized by the side alignment means (33) positioned on opposite sides of the reference line (38) for engagement on the opposite end edges (36, 37) of the glass panels (36,37) for the alignment of the panels. to the reference line (38).