DE102021130748B3 - Wheel of a component belt conveyor device, component belt conveyor device and placement device - Google Patents

Abstract

Wheel (10) of a component belt conveyor device (100), the wheel (10) having a plurality of wheel pins (1), at least some of the wheel pins (1) of the wheel (10) being displaced when a component belt (110) is displaced in a conveying direction (FR ) can be brought into engagement with at least some of the transport holes (111) of the component belt (110), the plurality of wheel pins (1) being arranged along a wheel edge (9) of the wheel (10), and the plurality of wheel pins (1) being each extending radially away from an axis of rotation (RA1) of the wheel (10), and wherein the plurality of wheel pins (1) are each designed in such a way that after a respective engagement of a wheel pin (1) of the plurality of wheel pins (10) in a transport hole (111 ) of the plurality of transport holes (111), at least one section of the component belt (110) at least partially forming the transport hole (111) remains undeformed, with the wheel pins (1) of the wheel (10) each having a surface in the shape of a segment of a circle or a sector of a circle in a cross section (Q). have surface.

Description

State of the art

Component tapes are generally configured in strips and comprise component pockets arranged in a row in the direction of extension of the component tape for receiving electronic components and transport holes arranged in a row in the direction of extension of the component tape, in particular transport holes configured in a circular manner. Furthermore, a component tape can be accommodated wound up in a receiving body, the component tape being unwound for removal of components from the component pockets. The unwinding of the component tape and a shifting of the component tape can take place by means of a rotatably mounted transport wheel. To move the component tape, the transport wheel can engage in the transport holes of the component tape with transport pins arranged circumferentially on the transport wheel. A pick-up unit of a pick-up device for picking up a component from a component pocket of a component belt can pick up the component from the component pocket at a pick-up position. The respective pocket positions of the component pockets of the component belt are defined and tolerated in particular relative to the nearest transport hole. Disadvantageously, angular transport pins of the transport wheel for unwinding and moving the component tape deform the transport holes of the component tape. A pocket position, determined with the help of the position encoder integrated in the transport wheel, for picking up a component from the component pocket can therefore be incorrect, so that the picking up of the component from the component pocket can fail.

Furthermore, the component belt can be caused to vibrate by the transport pins arranged peripherally on the transport wheel entering and exiting the transport holes, so that the component can fail to be picked up from the component pocket, e.g. because components jump out of the component pocket.

The DE 10 2005 006 173 A1 discloses a device for feeding placement elements stored in a conveyor belt to a pick-up position, from which they are picked up by a placement head of a placement machine and placed on predetermined placement positions on a component carrier. Furthermore, in the DE 10 2005 006 173 A1 discloses a sprocket having a protrusion extending radially outward from a peripheral surface of the sprocket. Starting from the peripheral surface, the projection initially has two rounded corners which end in two straight sections which run outwards at least approximately parallel. The two straight sections each open into a convex section, so that the cross-sectional area of the projection tapers outwards in this section. The two convex sections each open out via a further rounded corner into a plateau-like section which represents the outer boundary of the projection.

The U.S. 2003/0 219 330 A1 discloses an automated or self-threading tape feeder for presenting parts to a pickup location for subsequent removal and soldering or similar attachment to a substrate using a pick and place machine. Furthermore, the U.S. 2003/0219330 A1 that the pickup station is preferably associated with a code wheel or similar device at a point near or adjacent to the pickup location to accurately detect the position and movement of the carrier tape. The encoder wheel preferably has teeth of a height sufficient to contact the equidistant drive holes along one edge of the component tape. Alternatively, a second set of teeth of a different height may be included along an outer circumference of the encoder wheel.

The DE 10 2014 106 543 A1 discloses a belt conveyor for an automatic placement machine, at least having a rotatably mounted pin wheel for conveying a belt, a drive with at least one gear wheel for driving the pin wheel, and a position determination device for determining a rotational position of the pin wheel, with pins of the pin wheel being able to engage in perforations in the belt.

The DE 11 2015 007 182 T5 discloses a conveyor and component mounter. Further disclosed DE 11 2015 007 182 T5 a first ring gear and and a second ring gear. The first ring gear is arranged downstream of the second ring gear in the conveying direction. The first sprocket includes first protrusions that engage with a band (the band holes), and the second sprocket includes second protrusions that engage with the band (the band holes).

It is the object of the present invention to at least partially eliminate the disadvantages described above. In particular, the object of the present invention is to guide a component tape with component pockets in a particularly advantageous manner and to ensure that a component is picked up from a component pocket of the component tape in a particularly reliable manner.

The above object is achieved by a wheel having the features of claim 1 and a component belt conveyor device having the features of claim 4 and an assembly device having the features of claim 16. Further features and details of the invention result from the dependent claims, the description and the drawings. Features and details that are described in connection with the wheel according to the invention also apply, of course, in connection with the component belt conveyor device according to the invention and/or the loading device and vice versa, so that the disclosure of the individual aspects of the invention is or can always be referred to alternately .

According to a first aspect, the present invention shows a wheel of a component belt conveyor device, wherein the wheel has a plurality of wheel pins, and wherein at least some of the wheel pins of the wheel can be brought into engagement with at least some of the transport holes of the component belt when a component belt is displaced in a conveying direction. Further, the plurality of wheel pins are disposed along a rim of the wheel, with the plurality of wheel pins each extending radially from an axis of rotation of the wheel. Furthermore, the multiple wheel pins are each configured in such a way that after a respective engagement of a wheel pin of the plurality of wheel pins in a transport hole of the plurality of transport holes, at least one section of the component belt that at least partially forms the transport hole remains undeformed or essentially undeformed, the wheel pins of the wheel respectively in a cross-section, have a surface in the shape of a segment of a circle or a surface in the shape of a sector of a circle.

In particular, the respective dimensions of the wheel pins are the same as or smaller, in particular slightly smaller, than the dimensions of the transport holes of the component belt. In particular, the respective diameter of the wheel pins can be the same as or smaller, in particular slightly smaller, than the diameter of the transport holes of the component belt. Deformation of a section of the component belt forming the transport hole can thus be prevented in a particularly advantageous manner in an improved manner, in particular prevented.

The component tape is in particular designed in strip form and comprises component pockets arranged in a row in the direction of extension of the component tape for receiving components and transport holes arranged in a row in the direction of extension of the component tape, the transport holes in particular having the same or essentially the same design. Furthermore, the sprocket holes may be circular or substantially circular in shape.

Advantageously, the wheel is integrally formed with the plurality of wheel pins. In this way, the conveying force can be transmitted to the component tape in a particularly advantageous manner in order to move the component tape in the conveying direction. Furthermore, lateral guidance of the component tape can thus take place particularly precisely.

In particular, the wheel can be mounted so that it can rotate, preferably so that it can rotate around the axis of rotation. Furthermore, the wheel is preferably designed to be rotationally symmetrical to the axis of rotation of the wheel.

In particular, the multiple wheel pins of the wheel can also be understood as a large number of wheel pins. Advantageously, the multiple wheel pins are configured the same or substantially the same. Furthermore, the wheel pins are preferably evenly distributed along the wheel edge of the wheel. In particular, the pitch of the wheel pins along the wheel rim of the wheel is defined by the spacing of the sprocket holes. The distance between adjacent wheel pins is, for example, approx. 4 mm, so that a wheel circumference of the wheel of approx. 48 mm results, in particular for a wheel with 12 wheel pins. For example, a guide wheel for laterally guiding the component belt 12 can have wheel pins. In addition, in particular, the plurality of wheel pins extend perpendicularly or substantially perpendicularly away from the wheel rim of the wheel. In particular, a respective wheel pin can have an extent of less than 5 mm, in particular an extent of 0.2 to 3.0 mm, preferably an extent of 0.5 to 2.5 mm.

Furthermore, the wheel is preferably designed in the shape of a disk or essentially in the shape of a disk. Thus, the wheel can be particularly space-saving. The disk-shaped wheel has, in particular, a radially circumferential outer disk edge as the wheel edge. In particular, the wheel can also have at least one polymer, preferably made from a polymer, for example injection molded. Thus, the wheel can be particularly inexpensive. In particular, the wheel has a diameter of less than 100 mm, preferably a diameter of 15 to 80 mm.

When the component tape is displaced in the conveying direction, at least one (single) wheel pin of the wheel can be engaged with at least one transport hole of the component tape at times. It is also conceivable that when the component belt is shifted in the conveying direction, several wheel pins of the wheel are temporarily engaged with several transport holes of the component belt.

A section that at least partially forms a transport hole is in particular a respective locally a transport hole at least partially surrounding section of a respective hole edge of the conveyor belt. A respective hole edge of the conveyor belt is in particular a (complete) edge of the conveyor belt locally surrounding a respective transport hole.

The expression “that after a respective engagement of a wheel pin of the plurality of wheel pins in a transport hole of the plurality of transport holes at least one section of the component belt that at least partially forms the transport hole remains undeformed or essentially undeformed” is intended to express in particular that an immersion and emergence of the several wheel pins arranged along a wheel edge of the wheel into the transport holes of the component belt when the component belt is shifted in such a way that at least one section of the component belt at least partially forming a respective transport hole remains undeformed or essentially undeformed.

In particular, no irreversible, permanent deformation of at least one section of the component belt that at least partially forms the transport hole occurs when a wheel pin of the plurality of wheel pins engages in a transport hole of the plurality of transport holes. Furthermore, preferably after the respective engagement of a wheel pin of the plurality of wheel pins in a transport hole of the plurality of transport holes, at least one hole edge of the component belt forming the transport hole can remain undeformed or substantially undeformed.

The expression "remains essentially undeformed" is intended to express the fact that very slight deformations occur when the wheel pins of the wheel come into contact with the transport holes of the component belt when the several wheel pins arranged along a wheel edge of the wheel enter and exit the transport holes of the component belt can, but whose size is not important for determining the position of component pockets of the component belt based on the transport holes.

Advantageously, with the wheel having a plurality of wheel pins, the plurality of wheel pins being configured in such a way that after a respective engagement of a wheel pin of the plurality of wheel pins in a transport hole of the plurality of transport holes, at least one section of the component belt that at least partially forms the transport hole remains undeformed Component tape with component pockets performed particularly advantageously and the collection of a component from a component pocket of the component tape can be guaranteed particularly reliably.

In a wheel according to the invention, the wheel pins of the wheel each have, in a cross section, a surface in the shape of a segment of a circle or a surface in the shape of a sector of a circle, in particular a semicircular surface. It is thus particularly advantageously possible to prevent the transport holes from being deformed when the plurality of wheel pins arranged along the wheel edge of the wheel enter and exit circular or essentially circular transport holes in the component belt. Thus, guiding the component tape can be particularly advantageous and, furthermore, the position of a component pocket of the component tape can be determined particularly accurately, so that picking up a component from the component pocket is particularly reliable. In particular, the multiple wheel pins having a circular segment surface or a circular sector surface, in particular a semicircular surface, are also oriented along the wheel edge of the wheel such that a respective circular arc of the multiple wheel pins points in the conveying direction. In particular, the respective dimensions, in particular a respective diameter, of the plurality of wheel pins in the radially outward direction from a rotational axis of the wheel remain the same or essentially the same.

According to a further preferred embodiment, in a wheel according to the invention, the plurality of wheel pins can each be designed at least partially in the shape of a dome or at least partially in the shape of a truncated cone. Advantageously, the respective dimensions, in particular a respective diameter, of the plurality of wheel pins decrease radially outwards in the direction of an axis of rotation of the wheel. Thus, the several wheel pins arranged along the wheel edge of the wheel can be moved in and out in a particularly advantageous manner. It is also conceivable that the wheel pins each having a circular segment-shaped surface or a circular sector-shaped surface, in particular a semi-circular surface, are (additionally) designed in the form of a dome or a truncated cone. In particular, the wheel pins, each configured in the manner of a dome or truncated cone, are also arranged along the wheel edge of the wheel in an oriented manner in such a way that a respective arc of a circle of the plurality of wheel pins points in the conveying direction. A driven guide wheel and/or a transport wheel (each) can thus particularly advantageously transmit at least part of a conveying force to the component belt, in particular with circular transport holes, for moving the component belt in the conveying direction.

Details and explanations that have been described for the wheel according to the invention can also be found in a guide (described later). tion wheel and/or be transferred to a transport wheel (described later) and vice versa.

According to a second aspect, the present invention shows a component belt conveyor device, wherein the component belt conveyor device has a force transmission unit for transmitting at least part of a conveying force to a component belt for shifting the component belt in a conveying direction. Furthermore, the component belt conveyor device comprises at least one guide wheel, which is rotatably mounted about an axis of rotation, at least for laterally guiding the component belt, the rotatably mounted guide wheel being designed according to the first aspect of the invention. The component belt conveyor device also includes a position detection unit with at least one first position sensor for determining the position of component pockets of the component belt based on the transport holes of the component belt in the conveying direction after the power transmission unit.

In particular, the force transmission unit can be operatively connected mechanically to the component belt for the transmission of at least part of the conveying force to the component belt for displacing the component belt in the conveying direction. The force transmission unit can have, for example, a friction wheel device and/or a transport wheel, with the several transport wheel pins of the transport wheel being able to be brought into engagement with the transport holes of the component belt for the transmission of at least part of the conveying force to the component belt for shifting the component belt in the conveying direction. Furthermore, the power transmission unit can include a drive device for generating a rotational movement, e.g. an electric motor, in order to e.g to set a rotational movement.

The at least one guide wheel, which is mounted such that it can rotate about the axis of rotation, is in particular at least for laterally guiding the component belt. In other words, by means of the rotatably mounted guide wheel, a movement of the component belt in a transverse direction transverse to the conveying direction is prevented in an improved manner, preferably prevented. In particular, the at least one guide wheel is also arranged below the component belt. Furthermore, the rotatably mounted guide wheel has, in particular, a diameter of 15 to 80 mm.

Furthermore, the at least one guide wheel, which is rotatably mounted about the axis of rotation, can (itself) be driveless. For this purpose, the power transmission unit, e.g. a friction wheel device of the power transmission unit, transmits in particular the complete conveying force to the component belt for moving the component belt in the conveying direction, with the shifting of the component belt by the power transmission unit also causing the rotatably mounted, (self) non-driven guide wheel to rotate can be. The (self) non-driven guide wheel can be used either only for lateral guidance of the component tape or for lateral guidance of the component tape and for determining the position of component pockets of the component tape based on the transport holes of the component tape. To determine the position of the component pockets of the component tape based on the transport holes of the component tape, the rotatably mounted, (self) driveless guide wheel can be coupled to a position sensor, e.g. to a rotary encoder as a position sensor.

Furthermore, the force transmission unit and the at least one rotatably mounted guide wheel are each configured in such a way that the component belt is shifted horizontally or essentially horizontally in the conveying direction from the force transmission unit to a pick-up position for picking up at least one component from a component pocket of the plurality of component pockets of the component belt. This means that the collection can be carried out particularly reliably.

In particular, the at least one first position sensor of the position detection unit or the position detection unit can determine the position of a component pocket or multiple component pockets based on a respective non-deformed section of the component belt that at least partially forms the respective transport hole in the conveying direction downstream of the force transmission unit. For example, an undeformed section of the component belt that at least partially forms the respective transport hole can be detected by means of an optical sensor, such as a camera.

Using the position detection unit with the at least one first position sensor for determining the position of component pockets of the component tape based on the transport holes of the component tape in the conveying direction downstream of the power transmission unit, a pick-up position can be determined, in particular for a pick-up unit of a pick-up device of a placement device, in order to pick up at least one component from a To enable component pocket of the multiple component pockets of the component belt (at the determined pick-up position).

A pick-up position for picking up at least one component by means of a pick-up unit of a pick-up device of a placement device from a component pocket is preferably located several component pockets of the component belt in the conveying direction after the power transmission unit, preferably in the conveying direction on or after the guide wheel. Furthermore, in particular, a respective pocket position of the component pockets of the component belt is defined and tolerated in each case relative to the nearest transport hole.

It can be advantageous if, in a component belt conveyor device according to the invention, the guide wheel, in particular in addition to the force transmission unit, transmits at least part of the conveying force through the wheel pins to the component belt for moving the component belt in the conveying direction. In other words, both the rotatably mounted guide wheel for laterally guiding the component belt and the power transmission unit, e.g. a friction wheel device of the power transmission unit and/or a rotatably mounted transport wheel of the power transmission unit, can each transmit part of the conveying force for moving the component belt in the conveying direction. A (conveying) force for moving the component belt can thus be distributed to the force transmission unit and the guide wheel, so that deformation of the transport holes of the component belt can be kept particularly low, in particular avoided. A component can thus be picked up particularly reliably at a pick-up position from a component pocket, in particular downstream of the guide wheel in the conveying direction. In particular, the rotatably mounted guide wheel can be mechanically operatively connected to a drive device for generating a rotational movement, e.g. an electric motor, in order to transmit at least part of the conveying force through the wheel pins to the component belt.

Advantageously, in a component belt conveyor device according to the invention, the force transmission unit can be a friction wheel device with a first friction wheel mounted rotatably about a first friction wheel axis and with a second friction wheel located opposite the first friction wheel and mounted rotatably about a second friction wheel axis for the transmission of at least part of the conveying force to the between the have, in particular be, the component belt located on the first friction wheel and the second friction wheel for moving the component belt in the conveying direction. It can thus be prevented in a particularly advantageous and simple manner that a respective section of the component tape forming a transport hole is deformed when the conveying force is transmitted to the component tape for displacing the component tape in the conveying direction. In particular, the first friction wheel axis, the second friction wheel axis and the axis of rotation of the rotatably mounted guide wheel are parallel or essentially parallel to one another.

Furthermore, in particular the at least one guide wheel is arranged in the conveying direction after the friction wheel device, in particular the first friction wheel and the second friction wheel. In particular, the first friction wheel is arranged above the component belt and the second friction wheel is arranged below the component belt, with the first friction wheel contacting an upper side of the component belt and the second friction wheel contacting an underside of the friction wheel for the displacement of the component belt in the conveying direction. In particular, the first friction wheel and the second friction wheel are each designed and matched to one another in such a way that the respective sections of the component belt forming the transport holes of the component belt are not deformed or essentially not deformed by the friction wheel device. For example, a contact pressure and/or a contact surface of the first friction wheel and a contact pressure and/or a contact surface of the second friction wheel are selected accordingly for this purpose. In one example, the rotatably mounted guide wheel can be coupled to a rotary encoder as the at least one first position sensor of the position detection unit for determining the position of component pockets of the component belt, and the friction wheel device can be driven by a stepping motor as the drive device of the power transmission unit. Advantageously, a control unit of the component belt conveyor device can be designed to evaluate the motor steps of the stepper motor and a sensor signal of the first position sensor in order to detect slipping of the friction wheel device, in particular the first friction wheel and/or the second friction wheel. A drive control of the drive device, in particular of the stepper motor, can switch to an error handling mode when it detects that the friction wheel device is slipping.

With particular advantage, in a component belt conveyor device according to the invention, the first friction wheel can have a groove running radially around the first friction wheel axis of the first friction wheel and/or the second friction wheel can have a groove running radially around the second friction wheel axis of the second friction wheel for non-destructive displacement of the component belt with the component pockets over the Have friction wheel device. The groove of the first friction wheel and the groove of the second friction wheel can also be understood as a recess. Thus, non-destructive shifting of the component belt with the component pockets can be made possible. In particular, the first friction wheel is arranged above the component belt and the second friction wheel is arranged below the component belt, with the first friction wheel contacting an upper side of the component belt and the second friction wheel contacting an underside of the friction wheel for the displacement of the component belt in the conveying direction. The width of the radial around the first friction wheel The groove running along the axis of the first friction wheel is in particular designed or designed in such a way that a removable protective film arranged on the upper side of the component belt for protecting the components in the component pockets of the component belt is not contacted. Thus, it is advantageously possible to prevent the protective film from being pulled off the upper side of the component tape with difficulty. Furthermore, the first friction wheel preferably has a first web running radially around the first friction wheel axis of the first friction wheel and a second web running radially around the first friction wheel axis of the first friction wheel, the groove of the first friction wheel being formed between the first web and the second web. The width of the first web of the first friction wheel and the width of the second web of the first friction wheel are in particular designed or designed in such a way that (only) the areas of the upper side of the component belt are contacted by the first friction wheel where there is no removable protective film to protect the components is arranged in the component pockets of the component belt. The width of the groove running radially around the second friction wheel axis of the second friction wheel is in particular formed or configured in such a way that the component pockets of the component belt formed on the underside of the component belt are not contacted. Destruction of the component pockets and the components in the component pockets can thus advantageously be prevented. Furthermore, the second friction wheel preferably has a first web running radially around the second friction wheel axis of the second friction wheel and a second web running radially around the second friction wheel axis of the second friction wheel, the groove of the second friction wheel being formed between the first web and the second web. The width of the first web of the second friction wheel and the width of the second web of the second friction wheel are in particular designed or designed in such a way that (only) the areas of the underside of the component belt are contacted by the second friction wheel where no component pockets of the component belt are formed. Preferably, the first friction wheel with the first web and the second web and the second friction wheel with the first web and the second web contact the component belt in such a way that the areas of the component belt on which no protective film is arranged or on which no component pockets are formed completely or substantially completely. A conveying force can thus be applied to the component tape over a particularly large area of the component tape and, in particular, deformation of the component tape holes of the component tape can be prevented or prevented in an improved manner.

According to a further preferred embodiment, in a component belt conveyor device according to the invention, the rotatably mounted guide wheel can be arranged adjacent to the power transmission unit along the conveying direction. It can thus be particularly advantageous for the component belt to be guided laterally by the rotatably mounted guide wheel. In particular, the rotatably mounted guide wheel is arranged along the conveying direction in the conveying direction after the power transmission unit, adjacent to the power transmission unit, for example a rotatably mounted transport wheel. Furthermore, the rotatably mounted guide wheel, which is arranged along the conveying direction in the conveying direction after the force transmission unit and adjacent to the force transmission unit, can be coupled to the first position sensor, e.g be or have the first position sensor. Thus, in particular, the power transmission unit is designed to move the component belt in the conveying direction and the rotatably mounted guide wheel is designed (together) with the rotatably mounted guide wheel coupled to the first position sensor for determining the position of component pockets of the component belt based on the transport holes of the component belt. In other words, in particular the determination of the position of component pockets and the displacement of the component belt in the conveying direction are designed as separate functions. Thus, the contact point for conveying force transmission by the force transmission unit, in particular the rotatably mounted transport wheel, is advantageously far enough away from the pick-up position for picking up at least one component from a component pocket of the component belt, so that picking up the component can be particularly reliable, since excitation of the component belt Vibrations in the vertical direction (z-direction) have a particularly low impact on pick-up safety.

It can be advantageous if, in a component belt conveyor device according to the invention, the rotatably mounted guide wheel and the power transmission unit, in particular a rotatably mounted transport wheel, are mechanically operatively connected via a gear. A conveying force for moving the component belt can thus be distributed to the force transmission unit and the guide wheel, so that deformation of the transport holes of the component belt can be kept particularly low. In particular, a gear wheel can be arranged on the power transmission unit, preferably on a rotatably mounted transport, as part of the transmission and/or a further gear wheel can be arranged on the guide wheel as a (further) part of the transmission, with the gear wheel arranged on the power transmission unit and the gear wheel arranged on the guide wheel is mechanically operatively connected via at least one intermediate gear wheel or a plurality of intermediate gear wheels. In particular, this can (only) the Kraftübertra sion unit comprise a drive device for generating a rotational movement, e.g. an electric motor, preferably a stepping motor, in order to set the power transmission unit, e.g mounted guide wheel also transmits a conveying force for moving the component belt in the conveying direction via the gear. It is also conceivable that in this case (only) the rotatably mounted guide wheel is mechanically operatively connected to a drive device for generating a rotational movement, e.g. an electric motor, preferably a stepper motor, for moving the component belt in the conveying direction, with the power transmission unit being connected via the gear additionally transmits a conveying force for moving the component belt in the conveying direction. In other words, in particular the power transmission unit can be mechanically operatively connected to a drive device or the rotatably mounted guide wheel can be mechanically operatively connected to a drive device in order to be (directly) set into a rotational movement by means of the drive device, the (not directly driven) rotatably mounted guide wheel or the ( (not directly driven) power transmission unit can be set into a rotational movement via the gearbox (indirect). A stepper motor as a drive device can be used in particular as the at least one first position sensor of the position detection unit for determining the position of component pockets of the component tape based on the transport holes of the component tape. The determination of the position of component pockets of the component belt based on the transport holes can be determined in particular on the basis of the steps that have been output. If, in particular, the power transmission unit is mechanically (directly) operatively connected to a stepper motor as the drive device, a rotational position or a rotational angle of the rotatably mounted guide wheel and thus the position of component pockets of the component belt can be determined based on the transport holes of the component belt using the output steps of the stepper motor and the gear ratio to be determined. The component belt conveyor device can thus be particularly simple and cost-effective since, for example, a rotary encoder can be dispensed with as the first position sensor for determining the position of component pockets on the component belt.

In a component belt conveyor device according to the invention, the rotatably mounted guide wheel can advantageously be coupled to a rotary encoder as the at least one first position sensor of the position detection unit for determining the position of the component pockets of the component belt. Since the transport holes in the component tape are advantageously particularly little deformed, the sensor signal of the first position sensor can be particularly unfalsified, so that the picking up of a component from a component pocket of the component tape can be particularly reliable. The angle of rotation transmitter is in particular a sensor for detecting the angle of rotation of the guide wheel. The rotary encoder can also be understood as an encoder or angle encoder. For coupling the rotary encoder (as the at least one first position sensor) to the rotatably mounted guide wheel, the rotatably mounted guide wheel can be arranged on a rotor of the rotary encoder, preferably in a fixed position on a rotor of the rotary encoder. The respective pocket positions of the component pockets of the component belt are defined and tolerated in particular relative to the nearest transport hole. The position detection unit can thus determine a respective position of a component pocket of the component tape based on the transport holes of the component tape and the rotation angle of the rotation angle sensor with the rotary encoder as the at least one first position sensor.

According to a further preferred embodiment, in a component belt conveyor device according to the invention, the force transmission unit can be coupled to a second position sensor of the position detection unit for determining the position of the component pockets of the component belt. Thus, the position of component pockets of the component tape can be determined particularly accurately based on the transport holes of the component tape, and a pick-up of components from a pick-up position by a pick-up unit of a pick-up device of an assembly device can be particularly reliable. It can be advantageous if, in a component belt conveyor device according to the invention, the second position sensor, with the second position sensor in particular being coupled to the force transmission unit, e.g a sensor signal of the second position sensor. Thus, the control unit can advantageously detect an abnormality in the displacement of the component belt in the conveying direction, e.g. a slip, and in particular send a message to a higher-level machine control, with the higher-level machine control in particular calling up an error handling routine, e.g. component pocket measurement for each pick-up of a component from a component pocket and/or a reduction in the transport speed of the component belt. It is also conceivable that the guide wheel coupled to the first position sensor and the Kraftübertra transmission unit, in particular a rotatably mounted transport wheel and/or a friction wheel device, are coordinated with the second position sensor coupled to the force transmission unit and/or are designed in such a way that the sensor signal of the first position sensor and the sensor signal of the second position sensor are synchronous in trouble-free operation of the component belt conveyor device or run essentially in sync. Advantageously, the control unit can thus determine an abnormality based on an asynchronicity between the sensor signal of the first position sensor and the sensor signal of the second position sensor, in particular an abnormality in the displacement of the component belt.

Advantageously, in a component belt conveyor device according to the invention, the power transmission unit can have a rotatably mounted transport wheel, the transport wheel being designed according to the first aspect of the invention, with a plurality of transport wheel pins of the transport wheel for transmitting at least part of the conveying force to the component belt for moving the component belt in the conveying direction are, are designed in particular. Thus, the power transmission unit can be configured in a particularly simple manner. In particular, when the several transport wheel pins of the transport wheel arranged along a wheel edge of the transport wheel move in and out of the transport holes of the component belt during displacement of the component part belt, deformation of at least one section of the component belt that at least partially forms a respective transport hole can be kept to a minimum in a particularly advantageous manner. The position of the component pockets can thus be determined particularly precisely and the components can therefore be picked up particularly reliably. The transport wheel is in particular rotatably mounted about a transport wheel axis. The transport wheel designed according to the first aspect of the invention is designed in particular according to the invention. Furthermore, the rotatably mounted transport wheel has, in particular, a diameter of 15 to 80 mm. For example, the transport wheel has more than 10 and/or fewer than 60 transport wheel pins, in particular adjacent transport wheel pins being spaced apart from one another by approximately 4 mm, for example. However, it should be noted that in particular the (dis)distribution of the transport wheel pins along the wheel edge of the transport wheel depends on the distance between the transport holes of the component belt. Furthermore, the rotatably mounted transport wheel preferably has a larger diameter than the guide wheel for transmitting at least part of the conveying force, in particular the complete conveying force, to the component belt. Advantageously, the transport wheel has a large wrap angle for the component belt, so that several transport wheel pins of the transport wheel engage with the component belt holes of the component belt for transmitting the conveying force, in particular each engage simultaneously. In particular, at least two transport wheel pins of the transport wheel, preferably at least four transport wheel pins of the transport wheel, very preferably at least eight transport wheel pins of the transport wheel, can simultaneously engage with the respective component belt holes of the component belt for the transmission of the conveying force. In this way, deformation of the transport wheel holes can be kept particularly low. In particular, the guide wheel has a small diameter, for example a diameter of 10 to 15 mm. Thus, a resolution of a rotary encoder coupled to the guide wheel as the at least one first position sensor of the position detection unit for determining the position of the component pockets of the component belt can be particularly high and a component can be picked up from a component pocket particularly reliably.

The component belt conveyor device according to the second aspect of the invention thus has the same advantages as have already been described for the wheel according to the first aspect of the invention.

According to a third aspect, the present invention shows an equipping device for equipping a substrate with components arranged in component pockets of a component tape. The placement device has a component tape conveyor device designed according to the invention and a pick-up device with a pick-up unit for picking up at least one component from a component pocket of the plurality of component pockets of the component tape.

In particular, the substrate is a circuit board. Furthermore, the components are in particular at least partially electrical and/or electronic components.

In particular, the pick-up unit of the pick-up device picks up a component from a component pocket of the plurality of component pockets of the component belt at a pick-up position. Picking up the component can also be understood as picking up the component.

In particular, the position detection unit can be connected to the pick-up device in terms of communication technology in order to transmit a pick-up position to the pick-up unit of the pick-up device for picking up components from the component pockets of the component belt.

The placement device according to the third aspect of the invention thus has the same advantages as have already been described for the wheel according to the first aspect of the invention or the component belt conveyor device according to the second aspect of the invention.

Further measures improving the invention result from the following description of some exemplary embodiments of the invention, which are shown schematically in the figures. All of the features and/or advantages resulting from the claims, the description or the drawings, including structural details, spatial arrangements and method steps, can be essential to the invention both on their own and in various combinations. It should be noted that the figures are only descriptive and are not intended to limit the invention in any way.

• 1 ein Rad,
• 2 einen Radstift eines Rades,
• 3 einen Radstift eines Rades,
• 4 eine Bauteilgurtfördervorrichtung,
• 5 eine Bauteilgurtfördervorrichtung,
• 6 eine Bauteilgurtfördervorrichtung,
• 7 Teil einer Bauteilgurtfördervorrichtung.
• 8 eine Bauteilgurtfördervorrichtung, und
• 9 eine Bestückungsvorrichtung.

They show schematically:

• 1 a wheel
• 2 a wheel pin of a wheel,
• 3 a wheel pin of a wheel,
• 4 a component belt conveyor,
• 5 a component belt conveyor,
• 6 a component belt conveyor,
• 7 Part of a component belt conveyor.
• 8th a component belt conveyor, and
• 9 a placement device.

In the following figures, identical reference symbols are used for the same technical features, also from different exemplary embodiments.

1 discloses a wheel 10 for a component belt conveyor device 100. The wheel has a plurality of wheel pins 1, in particular a large number of wheel pins 1, with at least some of the wheel pins 1 of wheel 10 having at least some transport holes when a component belt 110 is displaced in a conveying direction FR 111 of the component belt 110 can be brought into engagement. Further, the plurality of wheel pins 1 are arranged along a wheel rim 9 of the wheel 10 and the plurality of wheel pins 1 each extend radially from a rotation axis RA1 of the wheel 10 . Furthermore, the multiple wheel pins 1 are each configured in such a way that after a respective engagement of a wheel pin 1 of the plurality of wheel pins 10 in a transport hole 111 of the plurality of transport holes 111, at least one section of the component belt 110 that at least partially forms the transport hole 111 remains undeformed. In the 1 illustrated wheel pins 1 of the wheel 10 are in particular each configured like a dome. Thus, the several wheel pins 1 arranged along the wheel edge 9 of the wheel can be moved in and out particularly advantageously when the component belt 110 is moved in the conveying direction FR.

The 2a , 2 B , 2c , 2d each disclose a cross section Q of a wheel pin 1 of the wheel 10. 2a shows a cross section of a wheel pin 1 with a semi-circular surface. Thus, particularly advantageously, at least one section of the component belt 110 that at least partially forms the transport hole 111 and is also semicircular can remain undeformed. 2 B shows a cross section of a wheel pin 1 with a surface in the shape of a segment of a circle. Thus, on the one hand, at least one section of the component belt 110 that at least partially forms the transport hole 111 and is also in the shape of a segment of a circle can remain undeformed and, moreover, the component belt 110 can be guided laterally particularly well. 2c shows a cross section of a wheel pin 1 with a sector-shaped surface. Thus, at least one section of the component belt 110 that at least partially forms the transport hole 111 and is also in the shape of a sector of a circle can remain undeformed, and the component belt 110 can also be guided laterally particularly well. 2d puts how 2 a cross section of a wheel pin 1 with a sector-shaped area. Compared to 2c however, a larger section of the component belt 110, which at least partially forms the transport hole 111 and is also in the shape of a sector of a circle, can advantageously remain undeformed. A respective arc in the 2a until 2d The wheel pins 1 shown here shows in particular at least partially in the conveying direction FR.

The 3a and 3b disclose a wheel pin 1 with a dome-like design or a wheel pin 1 with a truncated cone shape. Advantageously, a respective diameter of the dome-like wheel pin 1 or the truncated cone-shaped wheel pin 1 decreases in the direction of a rotation axis RA1 (see 1 ) of the wheel 10 radially outwards. In this way, the several wheel pins 1 arranged along the wheel edge 9 of the wheel 10 can be moved in and out in a particularly advantageous manner.

4 discloses a component belt conveyor device 100, the component belt conveyor device 100 having a force transmission unit 30 for transmitting at least part of a conveying force F to a component belt 110 for displacing the component belt 110 in a conveying direction FR. In 4 For example, the power transmission unit 30 is rotatably mounted about a transport wheel axis TA tes transport wheel 10b, wherein several transport wheel pins 1 of the transport wheel 10b are designed for the transmission of at least part of the conveying force F to the component belt 110 in order to move the component belt 110 in the conveying direction FR. Furthermore, the component belt conveyor device 100 comprises at least one guide wheel 10a, which is mounted rotatably about an axis of rotation RA1, at least for laterally guiding the component belt 110. In addition, the component belt conveyor device 100 has a position detection unit 50 with at least one first position sensor 51, e.g. an optical sensor, for determining the position of component pockets 116 of the component belt 110 based on the transport holes 111 (see 1 ) of the component belt 110 in the conveying direction FR after the power transmission unit 10 . The transport wheel 10b can (exclusively) transmit the conveying force F alone to the component belt 110 for the displacement of the component belt 110 in the conveying direction FR. Thus, the guide wheel 10a can only serve to guide the component belt 110 laterally. It is also conceivable that the conveying force F for moving the component belt 110 in the conveying direction FR is transmitted to the component belt 110 by the transport wheel 10b and by the guide wheel 10a.

5 discloses a component belt conveyor 100, as is at least partially already 4 has been revealed. In 5 the rotatably mounted guide wheel 10a is arranged along the conveying direction FR in the conveying direction FR after the power transmission unit 30 adjacent to the power transmission unit 30, for example a rotatably mounted transport wheel 10b. The guide wheel 10a can have a diameter of 10 to 15 mm, for example. Furthermore, the transport wheel 10b can have a diameter of 60 to 90 mm, for example. Furthermore, the guide wheel 10a, which is arranged along the conveying direction FR in the conveying direction FR after the force transmission unit 30 adjacent to the force transmission unit 30, can have a first position sensor 51, in particular a rotary encoder, for determining the position of component pockets 116 of the component belt 110 based on the transport holes 111 of the component belt 110 be coupled in the conveying direction FR after the force transmission unit 30 or have the first position sensor 51 . Optionally, it is also conceivable that the power transmission unit 30, for example a rotatably mounted transport wheel 10b, is coupled to a second position sensor 52 of the position detection unit 50 for determining the position of the component pockets 116 of the component belt 110. The second position sensor 52 is advantageously a rotary encoder, with the component belt conveyor device 100 having a control unit 70 for monitoring a sensor signal from the first position sensor 51 and a sensor signal from the second position sensor 52 . In particular, the control unit 70 can detect an abnormality in the displacement of the component belt 110 in the conveying direction FR. It is also conceivable that the rotatably mounted guide wheel 10a and the power transmission unit 30, in particular a transport wheel 10b, are mechanically operatively connected via a gear (not shown). Thus, in particular, only one drive device (not shown), for example an electric motor, in particular a stepper motor, is required to generate a rotational movement or the conveying force F. The power transmission unit 30, e.g. a transport wheel 10b, and the guide wheel 10a can each be set in rotation by means of the transmission in order to transmit the conveying force F for the displacement of the component belt 110 in the conveying direction FR to the component belt 110.

6 discloses a component belt conveyor device 100, the component belt conveyor device 100 having a force transmission unit 30 for transmitting at least part of a conveying force F to a component belt 110 for displacing the component belt 110 in a conveying direction FR. In 6 the power transmission unit 30 has a friction wheel device 31 with a first friction wheel 32, which is mounted rotatably about a first friction wheel axis A1, and with a second friction wheel 33, located opposite the first friction wheel 32 and mounted for rotation about a second friction wheel axis A2, for transmitting the conveying force F to the between the first Friction wheel 32 and the second friction wheel 33 lying component belt 110 for moving the component belt 110 in the conveying direction FR. Furthermore, the component belt conveyor device 100 comprises at least one guide wheel 10a, which is mounted rotatably about an axis of rotation RA1, at least for laterally guiding the component belt 110. The component belt conveyor device 100 also has a position detection unit 50 with at least one first position sensor 51 for determining the position of component pockets 116 of the component belt 110 based on the transport holes 111 (see 1 ) of the component belt 110 in the conveying direction FR after the power transmission unit 30. It is conceivable here for the conveying force F to be transmitted exclusively via the friction wheel device 31 to the component belt 110, with the rotatably mounted guide wheel 10a also having a rotary encoder as the at least one first position sensor 51 of the position detection unit 50 for determining the position of the component pockets 116 of the component belt 110 is coupled. However, it is also conceivable that both the friction wheel device 31 and the guide wheel transfer the conveying force to the component belt 110 . How further from 7 As can be seen, the first friction wheel 32 can optionally have a groove 38 running radially around the first friction wheel axis A1 of the first friction wheel 32 and the second friction wheel 33 can optionally have a groove 38 running radially around the second friction wheel axis A2 of the second friction wheel 33 lau fende groove 39 for a non-destructive displacement of the component belt 110 with the component pockets 116 on the friction wheel device 31.

8th discloses a component belt conveyor device 100, such as is already at least partially disclosed in particular 6 and or 7 has been described. In addition to the in 7 For the component belt conveyor device 100 illustrated, this component belt conveyor device 100 has an additional friction wheel device 34 for at least partially transmitting the conveying force F to the component belt 110 located between the first friction wheel 35 and the second friction wheel 36 in order to displace the component belt 110 in the conveying direction FR (note: the component belt 110 is in the 8th only partially shown). The further friction wheel device comprises a first friction wheel 35 and a second friction wheel 36 opposite the first friction wheel 35. Advantageously, the first friction wheel device 31 and the further friction wheel device 34 can be of the same or essentially the same design. It is also conceivable that the first friction wheel device 31 and the second friction wheel device 34 are driven by a common drive device, with the first friction wheel device 31 and the second friction wheel device 34 in particular being coupled via a transmission. In order to particularly advantageously prevent the component belt 110 from twisting between the two friction wheel devices 31, 34, a further guide wheel 10 can be arranged at least for guiding the component belt 110 laterally.

9 schematically discloses an assembly device 200 for assembling a substrate, e.g. 4 until 8th ), and a pick-up device 210 with a pick-up unit 211 for picking up at least one component from a component pocket 116 of the plurality of component pockets 116 of the component belt 110.

reference list

1

wheel pin(s)

9

wheel rim

10, 10a, 10b

Wheel, guide wheel, transport wheel

30

power transmission unit

31

friction wheel device

32

first friction wheel

33

second friction wheel

34

further friction wheel device

35

first friction wheel

36

second friction wheel

38

groove

39

groove

40

transmission

50

position detection unit

51

first position sensor

52

second position sensor

70

control unit

100

component belt conveyor

110

component belt

111

Transport hole / transport holes

116

component pockets

200

placement device

210

pick-up device

211

pickup unit

FR

conveying direction

RA1

Axis of rotation wheel

TA

transport wheel axle

Q

cross-section

f

promotional power

A1

first friction wheel axle

A2

second friction wheel axle

Claims (16)

Wheel (10) of a component belt conveyor device (100), the wheel (10) having a plurality of wheel pins (1), at least some of the wheel pins (1) of the wheel (10) being displaced when a component belt (110) is displaced in a conveying direction (FR ) can be brought into engagement with at least some of the transport holes (111) of the component belt (110), the plurality of wheel pins (1) being arranged along a wheel edge (9) of the wheel (10), and the plurality of wheel pins (1) being each extending radially away from an axis of rotation (RA1) of the wheel (10), and wherein the plurality of wheel pins (1) are each designed in such a way that after a respective engagement of a wheel pin (1) of the plurality of wheel pins (1) in a transport hole (111 ) of the plurality of transport holes (111), at least one section of the component belt (110) at least partially forming the transport hole (111) remains undeformed, with the wheel pins (1) of the wheel (10) each having a surface in the shape of a segment of a circle or a sector of a circle in a cross section (Q). have surface. wheel (10) after claim 1 , characterized in that the wheel pins (1) of the wheel (10) each have a semicircular surface in a cross section (Q). wheel (10) after claim 1 or 2 , characterized in that the plurality of wheel pins (1) are each configured at least partially in the shape of a dome or at least partially in the shape of a truncated cone. Component belt conveyor (100), wherein the component belt conveyor (100) has: - a power transmission unit (30) for transmitting at least part of a conveying force (F) to a component belt (110) for displacing the component belt (110) in a conveying direction (FR), - at least one guide wheel (10a) rotatably mounted about an axis of rotation (RA1) at least for laterally guiding the component belt (110), wherein the rotatably mounted guide wheel (10a) is designed according to one of the preceding claims, - a position detection unit (50) with at least one first position sensor (51) for determining the position of component pockets (116) of the component belt (110) based on the transport holes (111) of the component belt (110) in the conveying direction (FR) after the power transmission unit (30 ). Component belt conveyor (100) after claim 4 , characterized in that the rotatably mounted guide wheel (10a), in particular in addition to the power transmission unit (30), transmits at least part of the conveying force (F) through the wheel pins (1) to the component belt (110) for moving the component belt (110) in the conveying direction (FR) transmits. Component belt conveyor (100) according to one of Claims 4 or 5 , characterized in that the power transmission unit (30) has a friction wheel device (31) with a first friction wheel (32) mounted rotatably about a first friction wheel axis (A1) and with a second friction wheel (32) opposite and about a second friction wheel axis (A2 ) rotatably mounted friction wheel (33) for transmitting at least part of the conveying force (F) to the component belt (110) located between the first friction wheel (32) and the second friction wheel (33) for moving the component belt (110) in the conveying direction (FR) has. Component belt conveyor (100) after claim 6 , characterized in that the first friction wheel (32) has a groove (38) running radially around the first friction wheel axis (A1) of the first friction wheel (32) and/or the second friction wheel (33) has a groove (38) running radially around the second friction wheel axis (A2) of the second friction wheel (33) running groove (39) for non-destructive displacement of the component belt (110) with the component pockets (116) over the friction wheel device (31). Component belt conveyor (100) according to one of Claims 4 until 7 , characterized in that the rotatably mounted guide wheel (10a) along the conveying direction (FR) is arranged adjacent to the power transmission unit (30). Component belt conveyor (100) according to one of Claims 4 until 8th , characterized in that the rotatably mounted guide wheel (10a) and the power transmission unit (30) via a gear (40) are mechanically operatively connected. Component belt conveyor (100) according to one of Claims 4 until 9 , characterized in that the rotatably mounted guide wheel (10a) is coupled to a rotary encoder as the at least one first position sensor (51) of the position detection unit (50) for determining the position of the component pockets (116) of the component belt (110). Component belt conveyor (100) according to one of Claims 4 until 10 , characterized in that the power transmission unit (30) is coupled to a second position sensor (52) of the position detection unit (50) for determining the position of the component pockets (116) of the component belt (110). Component belt conveyor (100) after claim 11 , characterized in that the second position sensor (52) is a rotary encoder, the component belt conveyor device (100) having a control unit (70) for monitoring a sensor signal of the first position sensor (51) and a sensor signal of the second position sensor (52). Component belt conveyor (100) according to one of Claims 4 until 12 , characterized in that the power transmission unit (30) has a rotatably mounted transport wheel (10b), the transport wheel (10b) having a plurality of transport wheel pins (1), at least some of the transport wheel pins (1) of the transport wheel (10b) being displaced when the component belt (110) can be brought into engagement with at least some of the transport holes (111) of the component belt (110) in the conveying direction (FR), the plurality of transport wheel pins (1) being arranged along a wheel edge (9) of the transport wheel (10b), and wherein the plurality of sprocket pins (1) each extend radially from a rotation axis (TA) of the sprocket (10b), and wherein the plurality of sprocket pins (1) are each configured so are that after a respective engagement of a transport wheel pin (1) of the plurality of transport wheel pins (1) in a transport hole (111) of the plurality of transport holes (111), at least one section of the component belt (110) at least partially forming the transport hole (111) remains undeformed , wherein several transport wheel pins (1) of the transport wheel (10b) are for transmitting at least part of the conveying force (F) to the component belt (110) for moving the component belt (110) in the conveying direction (FR). Component belt conveyor (100) after Claim 13 , characterized in that the transport wheel pins (1) of the transport wheel (10b) each have in a cross section (Q) a circular segment-shaped surface or circular sector-shaped surface, in particular a semi-circular surface or a circular surface. Component belt conveyor (100) after Claim 13 or 14 , characterized in that the plurality of transport wheel pins (1) are each configured at least partially in the shape of a dome or at least partially in the shape of a truncated cone. Mounting device (200) for mounting a substrate with components arranged in component pockets (116) of a component belt (110), the mounting device (200) having: - one according to one of Claims 4 until 15 - a pick-up device (210) with a pick-up unit (211) for picking up at least one component from a component pocket (116) of the plurality of component pockets (116) of the component belt (110).

Images