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EP3974079A1 - Rouleau tubulaire, alimentation en rouleaux et procede de fabrication d'un rouleau tubulaire - Google Patents

Rouleau tubulaire, alimentation en rouleaux et procede de fabrication d'un rouleau tubulaire Download PDF

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Publication number
EP3974079A1
EP3974079A1 EP20198455.6A EP20198455A EP3974079A1 EP 3974079 A1 EP3974079 A1 EP 3974079A1 EP 20198455 A EP20198455 A EP 20198455A EP 3974079 A1 EP3974079 A1 EP 3974079A1
Authority
EP
European Patent Office
Prior art keywords
roller
tube
roll
bearing surface
bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20198455.6A
Other languages
German (de)
English (en)
Inventor
Urs Fankhauser
Erich Lohner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zehnder Group AG
Original Assignee
J Zehnder und Soehne Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by J Zehnder und Soehne Co filed Critical J Zehnder und Soehne Co
Priority to EP20198455.6A priority Critical patent/EP3974079A1/fr
Priority to PCT/EP2021/076509 priority patent/WO2022064040A1/fr
Publication of EP3974079A1 publication Critical patent/EP3974079A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material

Definitions

  • the present invention relates to a tube roll, in particular for a roll feed, a roll feed comprising at least one tube roll and a method for producing a tube roll.
  • Roller feeds are used, for example, for conveying and feeding, in particular for the clocked feeding of workpieces such as band or strip material.
  • roller feeds are used in punching applications.
  • the workpiece is fed in a clocked manner, with the clocking of the feed being synchronized with a punching tool.
  • Roller feeds are also known from other areas of application.
  • a roller feed can have a profiled roller and emboss or stamp the corresponding profile into the workpiece as the workpiece is advanced.
  • the principle of the roller feed is basically based on at least two rollers, of which at least a first roller is arranged on a first side (for example above) of the workpiece to be conveyed and a second roller on an opposite side (for example below) of the workpiece to be conveyed, as in figure 1 shown.
  • the roller feed comprises two rollers, these are typically arranged opposite one another.
  • a roller feed may comprise three rollers (or a different number of rollers), the rollers being arranged offset from one another, so that the workpiece is conveyed through the rollers in a type of wave motion.
  • At least one of the rollers is a driven roller.
  • the workpiece is pushed into a gap formed between the rollers introduced.
  • the workpiece is then advanced/conveyed by a parallel rotation of the rollers.
  • the speed of rotation of the rollers determines the conveying or feed speed.
  • rollers typically include a roller body on which bearing shafts are attached in a rotationally fixed manner on both sides.
  • the bearing shafts are used to mount the roller, to deliver an output torque and/or to absorb a drive torque.
  • each roll is stored separately.
  • a drive shaft of a motor or a transmission, which transmits a drive torque to the roller, or an output shaft, which absorbs an output torque from the roller, must be additionally mounted. In any case, four bearing points must therefore typically be provided for a roller arrangement.
  • the roller body typically has corresponding bearing shaft receptacles, which each engage with a corresponding bearing shaft in a form-fitting, form-fitting and material-fitting manner and/or in a form-fitting and force-fitting manner.
  • the bearing shaft mounts and corresponding mounting flanges of the bearing shafts must be manufactured with high precision and low tolerances. This makes production expensive and complex. As a rule, many process steps are necessary to produce a conventional roller. As a result, the delivery times for conventional rollers are long and the number of suppliers is small.
  • the diameter of the bearing shafts in particular the diameter in the area where the drive torque is absorbed or the diameter in the area where the output torque is output, is small. In the event of overload or peak loads, this can lead to damage, in particular to the roller (or the bearing shafts) breaking. In addition, the connection between the roller body and the bearing shaft is often prone to damage, such as can be caused by overload.
  • the object of the present invention is to eliminate at least some of the aforementioned disadvantages.
  • a roller and a roller feed are to be provided which at least partially overcome the disadvantages.
  • the roller should have a simplified structure and be easy and inexpensive to manufacture.
  • a roller feed is to be provided, which enables simplified installation or easy replacement of the roller(s).
  • the tube roller includes a first end and a second end, and a radially circumferential roller surface disposed between the first and second ends and configured to contact a workpiece.
  • the rolling surface can in particular be a cylindrical rolling surface.
  • the tube roller is set up in particular for a roller feed.
  • the workpiece that comes into contact with the rolling surface can be a band or strip material which—if the tube roller is built into a roller feed—is conveyed/advanced by means of the tube roller. The conveying or feed movement is transmitted from the roller to the workpiece via the roller surface.
  • the rolling surface has an outer diameter d a (convex area).
  • the rolling surface with outside diameter d a can be profiled.
  • the rolling surface can have projections and/or recesses which profile and/or punch a conveyed workpiece during conveying.
  • the rolling surface of the tube roller can have a positive shape or a negative shape.
  • the outer diameter d a of the rolling surface can be in the range from 30 mm to 200 mm, preferably in the range from 44 mm to 150 mm, more preferably in the range from 60 mm to 120 mm and most preferably in the range from 80 mm to 100 mm.
  • the axial length of the rolling surface (or the feed passage width) can be in the range from 250 mm to 2000 mm, preferably in the range from 320 mm to 1600 mm, more preferably in the range from 480 mm to 1200 mm and most preferably in the range of 640 mm up to 820 mm.
  • the tubular roller has a hollow inner area in the area of the rolling surface, which has an inner diameter d i (concave area).
  • the rolling surface and hollow interior are substantially concentric (manufacturing tolerances included).
  • the tube roller may have been made from a tube having a hollow interior with an inner diameter.
  • the inner diameter d i of the hollow interior of the tube roll can correspond to the inner diameter of the hollow interior of the tube, or the interior of the tube roll can be finished (e.g. by machining, grinding, or other manufacturing processes) so that the inner diameter d i of the hollow interior of the tube roll is larger is the inner diameter of the interior of the tube.
  • the tube from which the tube roller may be made may be welded or seamless tube.
  • the tube may have been made by any of the following processes: extrusion, continuous casting, centrifugal casting, cross rolling, plug rolling, stretch reducing, a push bench process, a pilger step process, and/or the like. It is also possible for the tube to be a machined tube.
  • the tube roller also includes a first bearing surface which is designed to interact with a bearing in order to support the tube roller so that it can rotate about an axis of rotation.
  • the first bearing surface has a diameter d la that satisfies the following condition: d i ⁇ d la ⁇ d a .
  • the first bearing surface can in particular be set up with a rotary bearing, such as a plain bearing, a roller bearing, or the like to cooperate. If the bearing surface interacts with a plain bearing, for example, the bearing surface can have a corresponding surface quality in order to rotate radially in a plain bearing bush of the plain bearing. If the bearing surface is to interact with a roller bearing, the bearing surface can accommodate a bearing ring of the roller bearing (eg with a positive fit and/or with a force fit).
  • the diameter of the first bearing surface is greater than or equal to the inside diameter d i of the hollow interior of the tube roller and smaller than or equal to the diameter d a of the rolling surface.
  • the first bearing surface can thus be formed integrally with the tube roller.
  • the bearing surface may have been turned onto the tube roller, since the diameter d la of the first bearing surface (seen in the radial direction) is in the range of the wall thickness of the area in which the roller surface is arranged.
  • the bearing surface can also have been produced by other production processes (eg by cutting or grinding).
  • the first bearing surface has a very large diameter compared to conventional rolls, so that the risk of damage and/or overload fracture of the tube roll is minimized.
  • the first bearing surface is not arranged on a separate bearing shaft, so that the risk of damage, e.g. due to overload, can be further reduced.
  • the tube roller can further comprise a second bearing surface, for rotatably supporting the tube roller, which is opposite the first bearing surface in the axial direction.
  • the first bearing surface can be arranged in the vicinity of the first end or at the first end and the second bearing surface can be arranged in the vicinity of the second end or at the second end.
  • the second bearing surface can in particular be set up to interact with a rotary bearing, such as a plain bearing, a roller bearing or the like. If the bearing surface interacts with a plain bearing, for example, the bearing surface can have a corresponding surface quality in order to rotate radially in a plain bearing bush of the plain bearing. If the bearing surface is to interact with a roller bearing, the bearing surface can accommodate a bearing ring of the roller bearing (e.g. in a positive and/or non-positive manner).
  • the second bearing surface has a diameter d lb that satisfies the following condition: d i ⁇ d lb ⁇ d a .
  • the diameter of the second bearing surface is greater than or equal to and smaller than or equal to the inside diameter d i of the hollow interior of the tube roller the diameter d a of the rolling surface.
  • the second bearing surface can thus be formed integrally with the tube roller.
  • the bearing surface may have been turned onto the tube roller, since the diameter d lb of the second bearing surface (seen in the radial direction) is in the range of the wall thickness of the area in which the roller surface is arranged.
  • the bearing surface can also have been produced by other production processes (eg by cutting or grinding).
  • the second bearing surface has a very large diameter compared to conventional rollers, so that the risk of damage and/or overload fracture of the tube roller is minimized.
  • first bearing surface and the second bearing surface are optionally configured such that d lb ⁇ d la applies.
  • This enables the tube roller to be easily installed in a roller feed.
  • the tube roller with the small bearing diameter d lb of the second bearing surface in front can be pushed into or removed from the roller feed in the axial direction.
  • only an installation opening for the tube roller must be provided in the roller feed, which is dimensioned such that the tube roller fits through the installation opening.
  • the tube roller has only one bearing surface (ie the first bearing surface)
  • the tube roller is preferably inserted into a roller slot with the first bearing surface first. It is also possible to insert the tube roller in the opposite direction.
  • the diameter d la of the first bearing surface and/or the diameter d lb of the second bearing surface can be an inside diameter.
  • the first bearing surface and/or the second bearing surface can be arranged in the area of the rolling surface.
  • the bearing surface(s) and the rolling surface can thus be formed in an integral component. Since in this case the first bearing surface and/or the second bearing surface is an inner surface, almost the entire length of the tube roller (from the first end to the second end) can be used as a rolling surface. This makes it possible to provide very short tube rollers, since no additional installation space has to be provided for the bearing surfaces in the axial direction.
  • the diameter d la of the first bearing surface and/or the diameter d lb of the second bearing surface can be an outside diameter. It is also possible that the diameter d la is an outside diameter and the diameter d lb is an inside diameter. It is also possible that the diameter d lb is an outside diameter and the diameter d la is an inside diameter.
  • the first bearing surface is arranged between the first end of the tubular roller and the rolling surface and/or the second bearing surface is arranged between the second end of the tubular roller and the rolling surface.
  • the bearing surface(s) and the rolling surface can thus be formed in an integral component. Since in this case the first bearing surface and/or the second bearing surface is an external surface, the bearing surface is/are easily accessible and can be easily manufactured (e.g. by turning or grinding). This enables cost-effective production.
  • the tubular roller can comprise a shaft receptacle which is set up to receive a bearing shaft in a rotationally fixed manner.
  • a bearing shaft can be accommodated in a rotationally fixed manner in the shaft receptacle.
  • the non-rotatable mount can be positive, non-positive and/or material, for example by screwing, pressing, welding and/or other shaft connection techniques.
  • the bearing shaft can, for example, interact with a roller coupling, such as a Schmidt coupling, which makes it possible to adjust the tube roller in the radial direction and at the same time couples the roller to a shaft that is immovable in the radial direction.
  • a roller coupling such as a Schmidt coupling
  • the tubular roller can include a centering surface which is set up to receive a rotor of an electric motor in a rotationally fixed manner.
  • the centering surface then has an inside diameter or an outside diameter, with the diameter of the centering surface d z satisfying the following condition: d i ⁇ d z ⁇ d a and optionally also the following condition: d i ⁇ d z ⁇ d a
  • the centering surface is a radially circumferential surface. If the centering surface has an inner diameter (i.e., it is concave), the rotor may be a rotor of an external rotor electric motor. If the centering surface has an outer diameter (i.e. it is convex), the rotor may be a rotor of an internal rotor electric motor.
  • the diameter of the centering surface is greater than or equal to the inside diameter d i of the hollow interior of the tube roller and smaller than the diameter d a der rolling surface.
  • the centering surface can thus be formed integrally with the tube roller.
  • the centering surface may have been turned onto the tube roller, since the diameter d z of the centering surface (seen in the radial direction) is in the range of the wall thickness of the area in which the roller surface is arranged.
  • the centering surface can also have been produced by other production processes (eg by cutting or grinding).
  • the centering surface has a very large diameter compared to conventional rollers or drive shafts, so that the risk of damage and/or overload fracture of the tube roller is minimized.
  • the tube roller can be easily installed in a roll feed (e.g. by pushing it in axially), since the diameter d z of the centering surface is smaller than the diameter d la the first storage area. If the centering surface has an inner diameter, the condition d i ⁇ dl a ⁇ d z can accordingly be met in order to enable simple installation.
  • a clamping element can be arranged between the centering surface and the rotor of the electric motor.
  • the clamping element is, for example, a centering clamping element, such as a cone clamping element, so that the rotor is centered relative to the tube roller when the rotor is held in a rotationally fixed manner.
  • the centering surface is optionally formed on the first end of the tube roller.
  • the centering surface can be formed integrally with the tube roller and, for example, turned on at the first end of the tube roller. The centering surface enables the tube roller to be centered exactly. In this way, optimal concentricity of the tube roller can be achieved.
  • the tube roller can also include a gear element receptacle, which makes it possible to connect a gear element (for example a toothed wheel) to the tube roller in a torque-proof manner.
  • the transmission element receptacle is preferably arranged at the second end of the tube roller.
  • the hollow inner area of the tube roller can be set up to at least partially accommodate an external rotor motor and/or a rotary encoder.
  • the encoder is preferably used to control an electric motor that drives the tube roller.
  • a first part of the encoder eg an optical sensor surface
  • a second part of the rotary encoder can be, at least partially, in the tube roller be arranged without rotating with the tube roller. The relative movement between the first part of the encoder and the second part of the encoder can be detected and used to control an electric motor.
  • the rotary encoder By arranging the rotary encoder, at least partially, in the hollow interior, the overall size of a roller feed can be minimized, since the hollow interior is now available as additional installation space.
  • the hollow inner area of the tube roller can also be set up to accommodate further or other components of a roller feed, such as a temperature sensor, a cable bushing, and the like.
  • the roller feed comprises at least a first roller and a second roller, the first and the second roller being arranged in such a way that they are set up to convey a workpiece with the roller feed.
  • the workpiece is introduced into a gap formed between the rollers.
  • the workpiece is then advanced/conveyed by a parallel rotation of the rollers.
  • the speed of rotation of the rollers determines the conveying or feed speed.
  • the roll feed is adapted to be driven by a motor (e.g. an electric motor).
  • the motor can be part of the roller feed or can be coupled to the roller feed to drive it.
  • the roller feed is configured in such a way that at least the second roller can be driven. It is also possible to actively drive the first roller or several rollers of the roller feed, i.e. with motors.
  • the first roll and/or the second roll is a tube roll according to the invention, as described above.
  • all the advantages mentioned can be achieved with the roller feed.
  • the installation or replacement of the rolls can be simplified.
  • the tube rollers are less susceptible to damage, especially damage caused by overloading.
  • the manufacturing and maintenance costs of the roller feed can be reduced.
  • the roll feeder may include a body that houses the first roll and the second roll.
  • the body has a first bearing surface associated with a first bearing surface of the tube roller.
  • the body has a second bearing surface associated with a second bearing surface of the tube roll for rotatably supporting the tube roll in the body.
  • a bearing for example, a roller bearing, a plain bearing, .
  • the base body can be made in several pieces and can include a housing, for example.
  • the base body can be designed in such a way that the at least one tubular roller can be removed from the base body in the axial direction.
  • the base body can have at least one installation opening through which a tubular roller can be inserted or removed axially.
  • the installation opening can be closed with a cap, in particular a centered cap, with the centered cap preferably comprising a bearing surface of the base body. This means that the tube rollers can be installed/exchanged easily.
  • the roll feed may include a gear assembly and wherein a first gear (e.g., a gear) is associated with the first roll and a second gear (e.g., a gear) is associated with the second roll.
  • a rotational movement of the second (actively driven) roller can be transmitted via the second gear element to the first gear element and then to the first roller.
  • the transfer can be direct or indirect.
  • the gear arrangement can be a multi-stage gear and/or can include clutches.
  • the roll feed may include a roll clutch (e.g. a Schmidt clutch) which enables the first roll to be shifted in the radial direction relative to the second roll.
  • the roller coupling is preferably designed in such a way that the first roller can be adjusted in the radial direction and the roller is at the same time coupled to a shaft that is immovable in the radial direction.
  • the gap between the first and second rolls can be adjusted to a material thickness of the conveyed/feed workpiece.
  • the roller feed optionally includes an actuator (eg, an electric motor, a hydraulic actuator, a pneumatic actuator, a solenoid, and/or the like) to actively radially adjust the first roller relative to the second roller.
  • an actuator eg, an electric motor, a hydraulic actuator, a pneumatic actuator, a solenoid, and/or the like
  • a contact pressure from the roller to the workpiece can also be set via the actuator. This enables, for example, the profiling or punching of the workpiece.
  • the actuator makes it easier to insert the workpiece between the rollers.
  • the roller feed may include a rotary encoder which is used to control the electric motor, and the rotary encoder is optionally at least partially accommodated in the hollow interior of the tube roller.
  • the size of the roll feed can be minimized.
  • the method can include steps for producing a second bearing surface, an intermediate surface, a centering surface and/or shaft mounts.
  • FIG. 1 shows a schematic representation of a roller feed 1, as is known from the prior art.
  • the roller feed 1 comprises two rollers 100, 150.
  • a first roller 150 is arranged above and a second roller 100 is arranged below a workpiece to be conveyed.
  • the second roller 100 is driven via an electric motor 70 and is coupled to the first roller 150 via an output shaft and a gear arrangement (here a spur gear) 20 .
  • the first roller 150 can be adjusted in the radial direction by means of a Schmidt coupling 90 in order to be able to set a gap between the first and the second roller.
  • the conventional rollers 100, 150 comprise a roller body 110 on which bearing shafts 180a, 180b are fixed in a rotationally fixed manner on both sides.
  • the bearing shafts 180a, 180b are used to mount the roller 100, 150, to deliver an output torque and/or to absorb a drive torque.
  • the roller 100 is connected to the rotor 72 of the electric motor 70 via the bearing shaft 180a and the drive shaft 73 .
  • the drive torque is transmitted to the roller 150 via the gear arrangement 20 .
  • the roller 100 and the corresponding drive/electric motor are assigned five bearings 200a, 200b, 220, 270a, 270b (roller bearings here).
  • the roller 150 is associated with three bearings 222, 250a, 250b.
  • the diameter of the bearing shafts in particular the diameter in the area where the drive torque is absorbed or the diameter in the area where the output torque is output, is small. In the event of overload or peak loads, this can lead to damage, in particular to the roller (or the bearing shafts) breaking. In addition, the connection between the roller body and the bearing shaft is often prone to damage, such as can be caused by overload. If a roller is damaged, it must be replaced. For this purpose, extensive dismantling of the roll feed 1 is necessary, since the rolls cannot simply be removed axially from the roll feed due to the bearing.
  • roller feed 2 shows a schematic functional principle of a roller feed 2 according to the invention.
  • the principle of the roller feed 2 is based on at least two rollers 300, 350. At least one of the rollers is designed as a tubular roller according to the invention.
  • a first roller 300 is arranged on a first side of a workpiece 10 to be conveyed (here: above) and a second roller 350 is arranged on a second side of the workpiece 10 to be conveyed (here: below).
  • the orientation of the roller feed is arbitrary, so that the workpiece can be conveyed horizontally, vertically or at any angle. If the roller feed comprises two rollers, these are typically arranged opposite one another. Other arrangements are also possible.
  • a roller feed may comprise three rollers (or a different number of rollers), the rollers being arranged offset from one another, so that the workpiece is conveyed through the rollers in a type of wave motion.
  • At least one of the rollers 300, 350 is a driven roller.
  • the workpiece 10 is introduced into a gap formed between the rollers 300,350.
  • the workpiece 10 is then advanced/conveyed in the X direction by rotating the rollers in the same direction in the direction of rotation ⁇ 300 , ⁇ 350 .
  • the speed of rotation of the rollers determines the conveying or feed speed.
  • roller 300 can interact with a roller clutch, such as a Schmidt clutch, which enables the roller to be adjusted in the radial direction Z.
  • a roller clutch such as a Schmidt clutch
  • the gap between two rollers can be adjusted to a material thickness of the workpiece 10 being conveyed/advanced.
  • a simplified insertion of the workpiece between the rollers is made possible.
  • Figure 3A shows a schematic representation of a tube roller 300 according to the invention.
  • the tube roller 300 comprises a first end 305a and a second end 305b.
  • a radially circumferential rolling surface 302 is disposed between the first end 305a and the second end 305b and is adapted to contact a workpiece.
  • the rolling surface 302 has an outside diameter d a . This can be in the range from 30 mm to 200 mm, preferably in the range from 44 mm to 150 mm, more preferably in the range from 60 mm to 120 mm and most preferably in the range from 80 mm to 100 mm.
  • the tube roller 300 has a hollow inner area 304 which has an inner diameter di.
  • the rolling surface 302 and the hollow interior 304 are arranged substantially concentrically.
  • the tube roller has a first bearing surface (see Fig. Figure 4A , 309a), which is set up to interact with a bearing in order to mount the tube roller 300 so that it can rotate about an axis of rotation 301.
  • the first bearing surface has a diameter d la that satisfies the following condition: d i ⁇ d la ⁇ d a .
  • the diameter d la of the first bearing surface in Figure 3A tube roller 300 shown is an inside diameter.
  • the first bearing surface is arranged in the area of the rolling surface 302, which extends over the entire length of the roll.
  • the axial length of the rolling surface (or the feed passage width) can be in the range from 250 mm to 2000 mm, preferably in the range from 320 mm to 1600 mm, more preferably in the range from 480 mm to 1200 mm and most preferably in the range of 640 mm up to 820 mm.
  • the tube roller 300 comprises a shaft receptacle 308 which is set up to receive a bearing shaft in a rotationally fixed manner.
  • Figure 3B shows a schematic representation of a further tube roller 350 according to the invention.
  • the tube roller 350 comprises a first end 355a and a second end 355b.
  • a radially circumferential rolling surface 352 of tube roller 350 is disposed between first end 355a and second end 355b and is configured to contact a workpiece.
  • the rolling surface 352 has an outside diameter d a . This can be in the range of 30 mm to 200 mm, preferably in the range of 44 mm to 150 mm, more preferably in the range of 60 mm to 120 mm and most preferably in the range of 80 mm to 100 mm.
  • the tubular roller In the area of the rolling surface 352, the tubular roller has a hollow inner area 354 which has an inner diameter di.
  • the rolling surface 352 and the hollow interior portion 354 are arranged substantially concentrically.
  • a first bearing surface 359a is configured to cooperate with a bearing to support the tube roller 350 rotatably about an axis of rotation 351 .
  • the first bearing surface 359a has a diameter d la that satisfies the following condition: d i ⁇ d la ⁇ d a .
  • the tube roller 350 further includes a second bearing surface 359b for rotatably supporting the tube roller, which is opposite to the first bearing surface 359a in the axial direction.
  • the second bearing surface 359b has a diameter d lb that satisfies the following condition: d i ⁇ d lb ⁇ d a .
  • the first bearing surface 359a and the second bearing surface 359b are configured in the configuration shown such that d lb ⁇ d la applies.
  • the diameter d la of the first bearing surface 359a and the diameter d lb of the second bearing surface 359b are each outside diameters.
  • the first bearing surface 359a is arranged between the first end 355a of the tube roller and the rolling surface 352 and the second bearing surface 359b between the second end 355b of the tube roller and the rolling surface 352 .
  • the tube roller 350 is therefore suitable for being pushed into a roller feed in the axial direction (see Fig. Figure 4B ).
  • the tube roller 350 includes a centering surface 360 which is set up to receive a rotor 72 of an electric motor 70 in a rotationally fixed manner (see Fig. Figure 4A ).
  • the centering surface has 360 an outer diameter d z that satisfies the following conditions: d i ⁇ d z ⁇ d a and d i ⁇ d z ⁇ d a .
  • the tube roller 350 is therefore suitable for being pushed into a roller feed in the axial direction (see Fig. Figure 4B ).
  • the large diameter d z also minimizes the risk of roll breakage, eg due to overload, compared to conventional rolls.
  • a clamping element 60 is arranged between the centering surface 360 and the rotor 72 of the electric motor 70 (see Fig. Figure 4A ).
  • the clamping element 60 is, for example, a centering clamping element, such as a cone clamping element, so that the rotor 72 is centered relative to the tube roller 350 when the rotor 72 is held for rotation.
  • the Tube roller 350 also includes a centering surface 360, which is designed for this purpose with a cone clamping element 60 (see Fig. Figure 4A ) to work together.
  • the centering surface 360 is formed at the first end 355a of the tube roller 350 .
  • the tube roller 350 also includes a gear element receptacle 320 which makes it possible to connect a gear element 22 (for example a toothed wheel) to the tube roller 350 in a torque-proof manner.
  • the gear element receptacle is preferably arranged at the second end 355b of the tube roller.
  • An intermediate surface 370 can be arranged between the centering surface 360 and the first bearing surface 359a, which has a diameter d zw , the diameter fulfilling the condition d z ⁇ d zw ⁇ d la .
  • Intermediate surface 370 facilitates the sliding of a bearing onto bearing surface 359a.
  • Figure 4A shows a schematic representation of a roller feed according to the invention 4 and Figure 4B shows the roller feed 4 during assembly and disassembly.
  • the roller feed 4 shown comprises a first roller 300, which is of the type shown in Figure 3A shown tube roller corresponds.
  • the roller feed 4 includes a second roller 350, which is the one in Figure 3B shown tube roller corresponds.
  • the first and the second roller 300, 350 are arranged in such a way that they are set up to convey a workpiece (not shown) through the roller feed 4.
  • An electric motor 70 of the roller feed 4 is set up to drive the second roller 350 .
  • the roller feed 4 also includes a gear arrangement 20.
  • a first gear element 21 is assigned to the first roller 300 and a second gear element 22 to the second roller 350.
  • a rotational movement of the second roller 350 is transmitted via the second gear element 22 to the first gear element 21 and then to the first roller 300 .
  • the first and the second gear element are designed here as spur gears.
  • a roller clutch 90 for example a Schmidt clutch, is arranged between the first transmission element 21 and the first roller 300 , which enables the first roller 300 to be adjusted in the radial direction Z relative to the second roller 350 .
  • the first roller 300 remains coupled to the first transmission element via the roller clutch.
  • the roller feed 4 shown also includes an actuator 95 which is set up to actively radially adjust the first roller 300 relative to the second roller 350 .
  • the roller feed 4 further comprises a base body 30 which accommodates the first roller 300 and the second roller 350 .
  • the base body 30 is designed in such a way that the rollers 300, 350 can be removed from the base body 30 in the axial direction, as shown in FIG Figure 4B shown. In the view of Figure 4B the first roller 300 can be removed from the base body to the right and the second roller 350 to the left.
  • the body has a first bearing surface 39a associated with a first bearing surface 359a of tube roller 350 .
  • the body has a second bearing surface 39b associated with a second bearing surface 359b of the tube roller 350 to rotatably support the tube roller 350 in the body 30 .
  • Roller bearings 250a, 250b are arranged between the bearing surfaces 39a, 39b and 359a, 359b.
  • the gear element 22 is connected to the roller 350 in a rotationally fixed manner at the second end 355b.
  • the tube roller 350 receives a rotor 72 of the electric motor 70 on the centering surface 360 in a rotationally fixed manner.
  • the tube roller can be centered via the centering surface 360, which is designed to interact with a clamping element 60. This arrangement makes it possible to reduce the number of bearings required to a minimum.
  • the tube roller is mounted at only two points. Additional bearings for an input or output shaft can be omitted.
  • the tube roller 300 has a first bearing surface 309a which cooperates with a bearing 200a to rotatably support the tube roller 300 about an axis of rotation.
  • the tube roller 300 comprises a shaft receptacle 308 which receives a bearing shaft 80 in a rotationally fixed manner.
  • the bearing shaft 80 is supported on the bearing 200b and is connected to the roller clutch 90 .
  • the roller feed 4 also includes a rotary encoder 40 which is used to control the electric motor 70 .
  • the encoder may be at least partially received within the hollow interior 354 of the tube roller 350 .
  • FIG 5 shows a schematic representation of a further roller feed 5 according to the invention.
  • the rotary encoder 40 is outside of the tubular roller 350 arranged.
  • the rest of the structure of the roller feed 5 corresponds to the roller feed from the Figures 4A and 4B .
  • a workpiece 10 is conveyed between the rollers 300 , 350 .
  • roller feed 6 shows a schematic representation of a further roller feed 6 according to the invention.
  • both rollers 300', 350' are similar to those in FIG Figure 3A shown tube roller 300 is formed.
  • An electric motor (not shown) drives the lower roller 350' via a drive shaft which is also a bearing shaft 85'.
  • the tube rollers 300', 350' each have a first bearing surface on 309a, 359a, which cooperate with a bearing 200a, 250a to support the tube roller 300', 350' rotatably about an axis of rotation.
  • the tube roller 300' comprises a shaft receptacle 308 which receives a bearing shaft 80' in a rotationally fixed manner.
  • the bearing shaft 80 is mounted on the bearing 200b and is connected to the transmission element 21 via the roller clutch 90 .
  • the tube roller 350' comprises a shaft receptacle 358 which receives a bearing shaft 85' in a rotationally fixed manner.
  • the bearing shaft 85' is mounted on the bearing 250b and is connected to an electric motor for driving the roller 350'.
  • a gear element 22 is held in a rotationally fixed manner on the bearing shaft 85' and engages with the gear element 21 in order to also drive the roller 300'.
  • the bearings 200a, 250a' are each accommodated on bearing surfaces of the base body 30 of the roll feeder 6.
  • the base body 30 is designed in several pieces and includes a housing.
  • the base body 30 of the roller feed 6 is designed in such a way that the tube rollers 300′, 350′ can be removed from the base body 30 in the axial direction (to the left in the illustration shown).
  • the base body has at least one installation opening.
  • the base body 30 has two installation openings.
  • the roller 300' can be inserted or removed axially through a first installation opening.
  • the roller 350' can be inserted or removed axially through a second installation opening.
  • the installation openings are each closed with a cap, in particular a centered cap 34 , 35 , the centered cap encompassing a bearing surface of the base body 30 . This means that the tube rollers can be installed/exchanged easily.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
EP20198455.6A 2020-09-25 2020-09-25 Rouleau tubulaire, alimentation en rouleaux et procede de fabrication d'un rouleau tubulaire Withdrawn EP3974079A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20198455.6A EP3974079A1 (fr) 2020-09-25 2020-09-25 Rouleau tubulaire, alimentation en rouleaux et procede de fabrication d'un rouleau tubulaire
PCT/EP2021/076509 WO2022064040A1 (fr) 2020-09-25 2021-09-27 Rouleau tubulaire, alimentation à rouleaux et procédé de fabrication d'un rouleau tubulaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20198455.6A EP3974079A1 (fr) 2020-09-25 2020-09-25 Rouleau tubulaire, alimentation en rouleaux et procede de fabrication d'un rouleau tubulaire

Publications (1)

Publication Number Publication Date
EP3974079A1 true EP3974079A1 (fr) 2022-03-30

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Application Number Title Priority Date Filing Date
EP20198455.6A Withdrawn EP3974079A1 (fr) 2020-09-25 2020-09-25 Rouleau tubulaire, alimentation en rouleaux et procede de fabrication d'un rouleau tubulaire

Country Status (2)

Country Link
EP (1) EP3974079A1 (fr)
WO (1) WO2022064040A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4344801A1 (fr) * 2022-09-28 2024-04-03 Aida Engineering Ltd. Dispositif d'alimentation en matériau en forme de plaque
US12145818B2 (en) * 2022-02-28 2024-11-19 Zehnder & Sommer Ag Roll feed with tube roll and simplified mounting/dismounting

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349981A (en) * 1964-06-24 1967-10-31 Humphris & Sons Ltd Strip feed device
US3684146A (en) * 1969-10-20 1972-08-15 Olivetti & Co Spa Feed device for a metal strip
DE2215342A1 (de) * 1972-03-29 1973-10-18 Reuter Maschinen Antistatische transportbandwalzen und verfahren zu ihrer herstellung
DE2427768A1 (de) * 1974-06-08 1975-12-18 Weingarten Ag Maschf Einrichtung zum schrittweisen vorschieben von band- oder streifenmaterial, an pressen, stanzen oder dergleichen arbeitsmaschinen
US4158429A (en) * 1977-03-28 1979-06-19 Honshyuseishi Kabushiki Kaishya Apparatus for feeding elongate sheet materials
EP1018478A1 (fr) * 1998-06-24 2000-07-12 Sumitomo Osaka Cement Co., Ltd. Rouleau d'alimentation de papier
EP1123887A1 (fr) * 1999-08-20 2001-08-16 Sumitomo Osaka Cement Co., Ltd. Procede de production de cylindres d'alimentation en papier
WO2003057607A1 (fr) * 2002-01-11 2003-07-17 Windmöller & Hölscher Kg Rouleau de transport ou rouleau deflecteur presentant des trous d'equilibrage dans le corps de rouleau cylindrique

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349981A (en) * 1964-06-24 1967-10-31 Humphris & Sons Ltd Strip feed device
US3684146A (en) * 1969-10-20 1972-08-15 Olivetti & Co Spa Feed device for a metal strip
DE2215342A1 (de) * 1972-03-29 1973-10-18 Reuter Maschinen Antistatische transportbandwalzen und verfahren zu ihrer herstellung
DE2427768A1 (de) * 1974-06-08 1975-12-18 Weingarten Ag Maschf Einrichtung zum schrittweisen vorschieben von band- oder streifenmaterial, an pressen, stanzen oder dergleichen arbeitsmaschinen
US4158429A (en) * 1977-03-28 1979-06-19 Honshyuseishi Kabushiki Kaishya Apparatus for feeding elongate sheet materials
EP1018478A1 (fr) * 1998-06-24 2000-07-12 Sumitomo Osaka Cement Co., Ltd. Rouleau d'alimentation de papier
EP1123887A1 (fr) * 1999-08-20 2001-08-16 Sumitomo Osaka Cement Co., Ltd. Procede de production de cylindres d'alimentation en papier
WO2003057607A1 (fr) * 2002-01-11 2003-07-17 Windmöller & Hölscher Kg Rouleau de transport ou rouleau deflecteur presentant des trous d'equilibrage dans le corps de rouleau cylindrique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12145818B2 (en) * 2022-02-28 2024-11-19 Zehnder & Sommer Ag Roll feed with tube roll and simplified mounting/dismounting
EP4344801A1 (fr) * 2022-09-28 2024-04-03 Aida Engineering Ltd. Dispositif d'alimentation en matériau en forme de plaque

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