Abstract:
A belt module with embedded rollers retained in cavities in the module by retention structure insertable into the module. The rollers and cavities are elongated in the direction of belt travel and closely separated by narrow dividers that form outward-facing surfaces that can serve as bearing surfaces for a belt made of the modules when the rollers are inactivated. When activated, the rollers, which rotate on axles parallel to the direction of belt travel, are supported directly on conveyor rolling surfaces. The dividers also carry the belt tension and stiffen the module.
Abstract:
Apparatus for diverting a stream of articles from one conveyor to another parallel conveyor moving in an opposite direction in a conveyor bed. A diverter element is attached to a carrier that is driven along a path parallel to the two conveyors by a differential drive mechanism coupled to the drive mechanisms of the two conveyors. The differential drive mechanism responds to the difference in the speeds of the two conveyor drive mechanisms to drive the carrier and position the diverter element along the parallel conveyors. The diverter element extends at least partway across the widths of the two conveyors to guide articles on one conveyor to the other. In a preferred version, the carrier is an endless conveyor belt to which the diverter element is attached, and the differential drive mechanism includes a shaft arranged coaxially with drive or idler sprocket shafts of the conveyor belts at each end of the bed. The apparatus is useful in accumulating articles transported on a main conveyor in a first-in, first-out fashion.
Abstract:
A variable-width spacer for use in a conveying apparatus includes a first link and a second link on opposite widthwise side of the spacer. The links can move relative to each other in a widthwise direction of the spacer to vary its width. The spacer can be used to fill a gap between adjoining members of a conveying apparatus, such as between two conveyor belts.
Abstract:
A conveyor drive unit is provided for engaging and driving a belt type conveyor. The unit includes a motor drive unit and drive chain assembly having a drive chain driven by the motor along a drive path. The drive chain has drive lugs configured thereon to engage with drive dogs on the conveyor as the drive chain is driven along the drive path. The drive path defines the drive angle with respect to a straight path of the conveyor along the drive path. An adjustable positioning device is disposed relative to the drive chain assembly such that upon variable positioning of the drive chain assembly, the drive angle defined between the drive path of the chain and the straight path of the conveyor along the drive path varies. In this manner, the degree of engagement of the drive lugs with the drive dogs of the conveyor along the drive path can be adjusted by varying the drive angle.
Abstract:
This invention provides improvements in modular links and conveyor belt systems for transferring moving articles from one conveyor belt to another disposed at ninety degrees. Thus a transferring belt has specially constructed links with two integrally formed portions across the width, one for pivotable connection in a moving belt configuration and the other specially constructed with features for more effective transfer of articles from the edge of a transfer belt to a moving belt disposed at ninety degrees which excludes inter-link pivoting structure. Thus with specially formed belt edge transfer modular links, a planar edge transfer platform is formed by the upper surfaces of a series of link end and belt edge planar conveyance surfaces located on the respective belt links. The lower link edge surfaces are tapered to reside in non-contact position over the ramp of the receptacle belt formed typically by a sprocket wheel at a position where the planar conveyance surfaces on the two belts are contiguous and co-planar. The link ends are constructed for encountering the dynamic movement conditions and loading stresses encountered when the belt edge is transversed by moving articles traveling from one belt to the other. The underside surfaces at the link end are contoured typically as a circular chord feathered out at the transfer end, and having a set of ridges parallel with the pivot rods. Interdigitatable fingers extending integrally from the upper planar link end surface mate with leading and trailing links for sharing planar and vertical stresses in the cantilevered integral link end-belt edge structure.
Abstract:
A conveyor belt having a sensor probe extending upward from an outer conveying surface into a mat of bulk products conveyed on the belt. The probe senses a condition of the product mat at a predetermined depth. The probe height above the conveying surface may be fixed or may be adjustable to be positioned at a critical depth within the product mat.
Abstract:
A modular radius conveyor belt having magnetic material in adjacent belt rows, including magnets in selected rows of belt modules. Magnets in one belt row attract magnets or paramagnetic material in adjacent rows to prevent vibration between rows that could shake a conveyed article out of its preferred position or orientation on the conveyor belt.
Abstract:
A belt module with embedded rollers retained in cavities in the module by retention structure insertable into the module. The rollers and cavities are elongated in the direction of belt travel and closely separated by narrow dividers that form outward-facing surfaces that can serve as bearing surfaces for a belt made of the modules when the rollers are inactivated. When activated, the rollers, which rotate on axles parallel to the direction of belt travel, are supported directly on conveyor rolling surfaces. The dividers also carry the belt tension and stiffen the module.
Abstract:
A modular conveyor belt (20) constructed of a series of rows (24, 25) of belt modules hingedly interlined by tapered oblong hinge pins (22) and suitable for following straight or curved conveyor paths. Aligned slots (30) formed in one set of hinge elements between successive rows are elongated in the direction of belt travel to allow the belt to fan out in turns. Fan-shaped apertures (38) formed in interleaved hinge elements of an adjacent row and aligned axially with the slots to admit a hinge pin (22) allow the belt to pivot at the hinge to articulate about a sprocket (181) or idler (186) or to enter and exit an incline. The oblong hinge pin has a first region at a first end (88) with a constant long axis to share the belt load among hinge elements encompassing the first region on straight runs. A second region of the hinge pin at an opposite second end (89) has a tapered oblong cross section, the long axis of which increases with distance from the second end to define a variable pitch and to spread the belt tension among the hinge elements at the outside of a turn encompassing the second region. Each belt row can be constructed of individual links stacked together on a support element (45) and retained by fasteners (52) or of integrally molded modules each comprising a transverse connecting member from which leading and trailing hinge elements extend. Accessory attachments, such as teeth (160) or sideguards (150), can be added to the belt. The belt can be driven by a cog, a roller chain, or other driving means driving lugs (172) extending from the bottom of the belt. The drive surfaces of the lugs can be obliquely arranged for better load sharing.
Abstract:
A sectional article transfer assembly for receiving articles stripped from the conveying surface of a moving conveyor belt. The article transfer assembly includes, as a first piece, a transfer edge member having a base portion lying on and supported by a support frame and a belt-abutting portion that extends from the base portion to closely abut the conveying surface of a conveyor belt as it passes around a sprocket. The belt-abutting portion can have fingers or a beveled straight edge, for example. The transfer edge member mates with a second piece, a transfer plate member, which has a recessed portion that overlaps and mates with the base portion of the transfer edge member and a flat top article-transfer plate continuous and coplanar with an upper surface of the transfer edge member to form an extension of the conveying surface of the belt along which articles arc conveyed. In preferred versions, the two pieces can each be made of different materials, such as a durable material for the transfer edge member and a low-friction material for the transfer plate member. Other combinations of materials can be used to adapt the characteristics of the sectional transfer assembly to different operational demands.