35results about How to "Increase the speed of unwinding" patented technology

The invention provides a double-point coating production line for hot-melt adhesive padding cloth, and the double-point coating production line comprises a cloth reception device, a wind shielding screen, a size discharging roller, a holt-melt rubber powder blowing/sucking device, a drying oven, a cooling device, an ultraviolet lamp perching device and a rolling device which are arranged in sequence from front to back, wherein the cloth reception device comprises a cloth reception underframe, a lower pressing mould which is arranged on the cloth reception underframe and an upper pressing mould which is arranged on the cloth reception underframe and matched with the lower pressing mould in a lifting manner to crimp padding cloth; the wind shielding screen comprises a screen underframe and a screen plate which is arranged on the screen underframe; the size discharging roller comprises a discharging roller main body and a discharging hole which is formed in the discharging roller main body; and a scraper is arranged in the discharging roller main body. According to the double-point coating production line for hot-melt adhesive padding cloth, the unrolling speed of the padding cloth is increased, the continuous production is realized, the work efficiency is improved, the production cost is reduced and the quality of the padding cloth is improved.

The invention provides a construction method of a super high-rise building large movable arm tower crane in-situ converted from inner climbing to outer hanging. A tower body of the tower crane is arranged between an inner wall and an outer wall of a core cylinder through a support beam mechanism; the support beam mechanism includes a support beam structure consisting of two bearing main beams and two bearing secondary beams; and the bearing main beams are fixedly joined with base tooth blocks of a bracket arranged on the outer wall of the core cylinder through beam tooth blocks thereof. The construction method comprises the following steps: a lower support rod is arranged below the support beam mechanism nearest the top end of the outer wall, and is aslant vertically supported between the outer side ends of the bearing main beams and the inner wall; the outer wall shrinks above next support beam mechanism with a lower height; and the steps are repeated until the outer wall totally shrinks. The construction method solves such technical problems as slow reshipment speed and delayed construction period in conversion from inner climbing conditions to outer hanging conditions, achieves convenience for in-situ conversion of the tower crane from inner climbing to outer hanging, and improves the total construction benefit.

Disclosed is a yarn winder capable of continuing winding yarn during knotting of the yarn. Specifically disclosed is a yarn winder which comprises a yarn supplying unit (3) that unwinds yarn (Y) from a yarn supplying bobbin (B); a yarn winding unit (5) that winds the yarn (Y) as a package (P); an accumulator (7) that is disposed between the yarn supplying unit (3) and the yarn winding unit (5) and that accumulates the yarn (Y); and a yarn end drawing mechanism (W) that draws an end of the accumulated yarn (Y) to the yarn supplying unit (3) when the yarn supplying bobbin (B) is changed, when the yarn is cut, or when the yarn runs out.

The invention relates to a method for conveying concrete by adopting a track trolley with buffer unloading and empty bucket restoration, which comprises the following steps of: loading and unloading by utilizing a track trolley which combines a material bucket (1) and a trolley frame (13) with a track wheel to convey the concrete; during loading, controlling the loading of the concrete by utilizing a splitter plate (9) arranged in the material bucket (1), so that the loading of the material bucket (1) is uniform; during unloading, loosening the material bucket (1) and controlling the unloading speed respectively by adopting a positioning device (23) and a buffer (7) which are connected with the trolley frame (13); and after the unloading is completed, restoring the material bucket (1) by utilizing the characteristic of a buffer spring (27) in the buffer. The method can improve the conveying speed of concrete materials and reduce the manual labor strength, and has the advantages of simple, economic and practical operation, easy popularization and the like.

The invention discloses an improved non-woven fabric dyeing production line. The improved non-woven fabric dyeing production line comprises an unreeling device, a dye vat, a transition area, a washing vat, a rolling device, an oven, a reeling device, multiple guide rollers, mesh belts and a frame body. The unreeling device, the dye vat, the transition area, the washing vat, the rolling device, the oven and the reeling device are sequentially arranged from front to back, and the dye vat, the transition area and the washing vat are arranged on the frame body; the guide rollers are arranged in the dye vat, the transition area and the washing vat and on the frame body, and the mesh belts are tensioned on the guide rollers; the unreeling device comprises a seat body, multiple rollers, two rails, an unreeling shaft, two guide seats, a sliding seat, a connecting seat, a regulating screw, a regulating disc, first bearings, second bearings, a regulating pressure applying device and two supporting bodies. Compared with the prior art, fixation and detachment can be convenient, fixing reliability is high, working efficiency is improved, product quality is improved, and the reeling degree of density of non-woven fabric is good.

The invention relates to a small railcar with buffering unloading and empty hopper resetting integrated by a material hopper (1) and a frame (13) with a rail wheel, wherein the small railcar mainly comprises the hopper (1), a buffer (7), the frame (13) and a locating device (23); the two sides of the hopper (1) are movably connected with the upper parts of the two upright rods of the frame (13) through a hopper rotating shaft (10); a locating pin (6) of the hopper (1) is connected with the bottom frame of the frame (13) via the closing of the locating device (23); and the buffer (7) is installed on the bottom frame of the frame (13). The small railcar can increase the reverse conveying speed of concrete material, reduce labour intensity, and has the advantages of simple operation, low cost, practical use, easy popularization and the like.

The invention relates to the technical field of textile machinery, in particular to a cloth inspecting method. When cloth is inspected, a gray fabric is intermittently unrolled and rolled up, a clothinspection step is carried out at the intermittent pause time, and rolling-up and unrolling steps are carried out simultaneously at the non-pause time. The cloth inspecting method is achieved througha cloth inspecting machine, and the cloth inspecting machine comprises a driving device, a transmission device, a rolling-up device, an unrolling device and a cloth inspecting device. According to thecloth inspecting method, pause in the gray fabric transportation process is achieved through the intermittent driving force provided by the driving device to facilitate staff to inspect the gray fabric, a single drive source is used for simultaneously driving the rolling-up device and the unrolling device with opposite rotation directions, it is ensured that the unrolling speed is the same as therolling-up speed, tension stability of the gray fabric is ensured in the process of cloth inspection, and the stability of transmission of the grey fabric is also ensured in the process of cloth inspection.

The invention discloses a driving device of a hank yarn shed frame. The driving device comprises a driving mechanism, a tension monitoring mechanism which is located below the driving mechanism, and acontroller. The driving mechanism and the tension monitoring mechanism are controlled with the controller. The tension monitoring mechanism comprises a mounting seat, two fixed guide wheels, a movable guide wheel, a sliding rack, a driving gear, a driving shaft, a constant-force clockwork spring, a shell, three sensors and a sensed body. The two fixed guide wheels and the sliding rack which is capable of being slideably mounted are disposed on the outer side of the mounting seat; the movable guide wheel which is located in the rear of the middle of the two fixed guide wheels is disposed at the front end of the sliding rack; the sensors which are located below the sliding rack are disposed on the outer side of the mounting seat; and the three sensors are arranged in sequence from front toback. Compared with the prior art, the phenomenon of yarn breaking or loosening can be greatly reduced, the structure is simple, and constant-force tensioning can be achieved.

The invention relates to an air ring breaking device. The air ring breaking device comprises an air ring breaking mechanism I and an air ring breaking mechanism II, wherein the air ring breaking mechanism I is used for wrapping a tube and partial yarns which are exposed to one end of cop yarns, the air ring breaking mechanism II is arranged in the 1/3 position of a cop yarn return line, the air ring breaking mechanism I comprises a fixed bracket, an air ring breaking protecting plate which is installed on the fixed bracket and a yarn guide which is arranged in the air ring breaking protectingplate, and the air ring breaking protecting plate wraps partial cop yarns. The air ring breaking device has the beneficial effects that the yarn unreeling speed is increased, the working efficiency ofan automatic winder is improved, high speed and high yield of the automatic winder are realized, and the product competitiveness is increased.

The invention discloses a five-roll straightener which comprises an upper compression roll set, a lower compression roll set and a rack. The lower compression roll set is fixedly arranged on the rackand comprises three parallel lower compression rolls. The upper compression roll set and the lower compression roll set are arranged oppositely up and down, the centers of two upper compression rollsin the vertical direction are each aligned with a position between the corresponding two adjacent lower compression rolls. An upper fixing base is connected to a lifting device. The lifting device candrive the upper fixing base to move up and down, and accordingly the distance between the upper compression roll set and the lower compression roll set in the vertical direction is regulated. Compared with the prior art, the five-roll straightener provided by the invention can be used for improving the steel belt straightening efficiency, accordingly the uncoiling speed is increased, and accordingly the production efficiency is improved.

The invention relates to a novel solar greenhouse internal heat preservation device which comprises a greenhouse, a horizontal heat preservation quilt, a side heat preservation quilt, a plurality of heat preservation quilt supporting devices and a driving device, wherein each heat preservation quilt supporting device comprises a cableway fixing device, a heat preservation quilt supporting cableway and a driven shaft; the driving device comprises a horizontal heat preservation quilt driving shaft, a horizontal heat preservation quilt driving motor, a side heat preservation quilt driving shaft, a side heat preservation quilt driving motor and a motor sliding way; and the solar greenhouse inner heat preservation device is further provided with a control system. According to the device, two sets of heat preservation quilts are synchronously retracted, released and stretched through winding of different combinations of multiple steel wire ropes and different winding directions of the steel wire ropes on different transmission shafts. During working, the motors are controlled to rotate cooperatively through buttons, a power shaft achieves the heat preservation function in the sunlight greenhouse through rolling of a reel, the whole working process is efficient and simple, and operation by people is facilitated.

The invention provides an intelligent flexible heat preservation double-pipe unwinding mechanism and an unwinding method. At present, a flexible heat preservation double-pipe unwinding mechanism in heating and cooling fields is still in an empty stage, and along with the increasing of market requirements, the design of the flexible heat preservation double-pipe unwinding mechanism urgently needs to be solved to meet the requirements of development. The intelligent flexible heat preservation double-pipe unwinding mechanism comprises an unwinding platform (1) and a guide mechanism (5), the unwinding platform is of a frame structure, and the interior of the frame structure is of a W-shaped groove structure. A motor (4) is fixed to a middle position frame of a W-shaped groove, two executing mechanisms (3) are separately mounted in two side grooves, the motor is separately connected with the two executing mechanisms through couplers, the executing mechanisms are provided with eight slidingblock devices, the eight sliding block devices are arranged at equal angles to the center, cylinder stators (2) are fixed to brackets on the right side of the executing mechanisms, and a control panel(6) is mounted on the upper right part of a frame of the unwinding platform.

The invention discloses textile equipment. The textile equipment comprises a slide channel, a slide block, a harness wire guide rod, a harness wire, an output circuit and a programmable logic controller, wherein the slide block is arranged on the slide channel, the harness wire guide rod is arranged on the slide block, and the harness wire is arranged on the guide rod and moves on the slide channel under the effect of the harness wire guide rod and the slide block; the output circuit is arranged on a harness wire motion path, and the programmable logic controller is connected with the output circuit and controls contacTS of the output circuit to be switched on and switched off, so that the harness wire is moved. The technical problems in the prior art that since a circular weaving machinefor weaving dual-layer canister cloth in the prior art is large in occupied space, inconvenient to operate and monotonous in production variety, the moving direction of the hook face slide channel needs to be changed when flower patterns are changed, and the utilization rate of a machine is not high are solved.