摘要:
A conveyor belt comprises woven fabric having a mesh structure which imparts the belt with air permeability permitting suction of air therethrough. In one embodiment, the woven fabric is such that a portion made in plain weave in a low-density weave pattern of prescribed width in which at least one warp yarn and at least one weft yarn are woven together alternates with a portion made in satin weave in a high-density weave pattern of prescribed width in which five to twelve warp yarns and the same at least one warp yarn as in the low-density weave pattern are woven together. This alternation of low-density weave pattern(s) and high-density weave pattern(s) may create stripe(s) disposed in the conveying direction of the belt. Portion(s) made in satin weave may be disposed at one or both side end(s) of the belt.
摘要:
The present invention provides an improved belted reel which is particularly well suited for the winding of soft, bulky tissue webs and overcomes the limitations of the prior art. The belted reel is capable of providing coordinated web tension and nip control by providing the winding parent roll with two nip points—the first nip formed between the winding roll and the second between the winding roll and a second support drum. Preferably the drum encircled by the endless belt lies above the second support drum and the first and second nip points lie in the same vertical plane.
摘要:
The invention relates to a device for picking up, displacing and placing a strip or band of flexible material, particularly unvulcanised rubber, more particularly unvulcanised rubber provided with reinforcement cords, comprising: a frame, a conveyor belt which runs over at least a first and a second roller, and a retaining unit provided with retaining means for retaining the strip or band onto the conveyor belt, wherein the frame is provided with the first roller, the retaining unit is displaceably mounted on the frame and provided with the second roller, and the device is furthermore provided with tensioning means for keeping the conveyor belt tensioned during the displacement of the retaining unit.
摘要:
An image forming apparatus includes a transfer unit forming a transfer nip portion, a fixing unit forming a fixing nip portion, and first and second belt suction conveyance units to suck a sheet onto a first belt and a second belt, respectively. The fixing nip portion is arranged at a position above the transfer nip portion. In a sheet conveyance direction, an upstream end portion of the first belt in the first belt suction conveyance unit is provided below the transfer nip portion, a downstream end portion of the first belt is provided above an upstream end portion of the second belt in the second belt suction conveyance unit, and a downstream end portion of the second belt is provided below the fixing nip portion. The first and second belts are inclined from a lower position to an upper position from upstream to downstream in the sheet conveyance direction.
摘要:
The invention relates to a reel-up (1) for receiving and winding into a roll (5) a paper web (W) that arrives from a drying cylinder (2) in a paper making machine. The reel-up (1) comprises a rotatably mounted reel spool (4) onto which a paper web (W) can be wound to create a paper roll (5) of increasing diameter and an endless flexible belt (6) mounted for rotation along a predetermined path of travel such that the flexible belt (6) forms a loop. The flexible belt (6) is positioned adjacent to the reel spool (4) to engage the paper web (W) against the reel spool (4) during winding such that the flexible belt (6) is deflected from the predetermined path of travel when the paper roll (5) starts to build up on the reel spool (4). The flexible belt (6) is air permeable and at least one blow box (7, 8, 9) is arranged inside the loop of the flexible belt (6) such that an underpressure can be generated that draws the paper web (W) against the flexible belt (6). The at least one blow box (7, 8, 9) has at least one nozzle (10) through which air is blown out of the at least one blow box (7, 8, 9) and the nozzle is shaped as a slot. According to the invention, the at least one blow (7,8, 9) box faces the flexible belt (6) with an outer surface (11) which is convexly curved such that dust which has been sucked through the flexible belt (6) and lands on the at least one blow box (7, 8, 9) is helped by gravity to glide along the outer surface (11) of the blow box (7, 8, 9) and fall of the blow box (7, 8, 9).
摘要:
An inkjet printer system includes a porous printing table and thereunder a vacuum chamber that may be divided into sub-vacuum chambers by a movable vacuum divider and a brush attached to prevent contamination and vacuum leakages in the vacuum chamber.
摘要:
A conveyor has drive and driven shafts mounted to undergo rotation, a transmitting member transmitting a rotational drive of the drive shaft to the driven shaft in synchronization relative one another, an elastic conveying member looped around the drive and driven shafts for conveying an object, and a guide portion arranged between the drive and driven shafts. The guide portion has rotators, receiving portions receiving respective ones of the rotators, openings communicating with through-holes of the conveying member, communication portions communicating with the openings and positioned so that each of the rotators is arranged between respective adjacent pairs of the communication portions, and connection members communicating with the openings via the communication portions. The connection members are configured for connection to a suction device for drawing air from the openings through the respective communication portions to draw by suction the conveyance object toward the conveying member.
摘要:
A conveyor belt comprises woven fabric having a mesh structure which imparts the belt with air permeability permitting suction of air therethrough. In one embodiment, the woven fabric is such that a portion made in plain weave in a low-density weave pattern of prescribed width in which at least one warp yarn and at least one weft yarn are woven together alternates with a portion made in satin weave in a high-density weave pattern of prescribed width in which five to twelve warp yarns and the same at least one warp yarn as in the low-density weave pattern are woven together. This alternation of low-density weave pattern(s) and high-density weave pattern(s) may create stripe(s) disposed in the conveying direction of the belt. Portion(s) made in satin weave may be disposed at one or both side end(s) of the belt.
摘要:
In a conveyor (1) including an elastic conveying member (4), which is looped around at least a first rotation shaft (2) and a second rotation shaft (3), and rotates endlessly through drive of the first rotation shaft, the conveying device further includes: transmitting means (5) for transmitting the drive of the first rotation shaft (2) to the second rotation shaft (3) so that the first rotation shaft (2) and the second rotation shaft (3) are synchronized with each other. Provide are a conveyor and a conveying device which are capable of allowing a movement amount of the first rotation shaft and a movement amount of the conveyance object to be accurately followed.
摘要:
A print media loading mechanism for a printer includes a feeding device comprising a pair of surface-defining elements which define surfaces which are movable relative to each other in the same direction parallel to a direction of feed of the print media, the feeding device being operable to engage a leading edge of the print media for feeding it towards an exit region of the printer to effect loading of the printer. A displacement arrangement displaces the surface-defining elements, in a direction transverse to a direction of feed of the print media, into abutment with each other when loading of the print media is required and for displacing the surface-defining elements out of abutment with each other when loading of the print media has been completed.