JP2021001061A - Carrier for thin strip and carrying-winding apparatus - Google Patents

Abstract

To provide a carrier for a thin strip using Coanda nozzles, adapted to stably guide and carry a sheet to a transport path.SOLUTION: A carrier 100 for a sheet 1 has one pair of opposite Coanda nozzles 111A, 112A respectively arranged in opposite two positions sandwiching a transport path at an inlet side of the transport path of a sheet 1 where the sheet 1 is supplied from a supply source to a supply destination. The sheet 1 fed to a space between the opposite Coanda nozzles 111A, 112A is allowed to be carried by being guided to the transport path while clamped by along-surfaces flows of pressure fluid configuring flows blown out of the opposite Coanda nozzles 111A, 112A and faster than the speed of the sheet 1 in a direction along the transport path.SELECTED DRAWING: Figure 1

Description

The present invention relates to a transfer device for a thin plate such as an amorphous ribbon and a transfer winding device.

Conventionally, a transfer winding device for a thin plate such as an amorphous ribbon has been proposed.
As described in Patent Document 1, the conventional amorphous ribbon transport winding device is an amorphous ribbon due to the creeping flow of the pressure fluid blown out from the blowout slit of the Coanda nozzle along the Coanda wall surface due to the Coanda effect. It is configured to have a transport device for guiding and transporting the fluid, and a winding device for winding the amorphous ribbon transported by the transport device on the winding core.

Here, in the conventional transport device, when a strip-shaped thin plate of an amorphous ribbon manufactured by quenching with a cast drum (cooling roll) is peeled off from the cast drum as a supply source and flies at high speed, the thin plate is formed. The tip of the pressure fluid along the Coanda wall surface of the Coanda nozzle is simply guided onto the air flow surface (transport surface) of the air flow guide (conveyor table) by a high-speed creeping flow, and can be transported at high speed.

Further, in the conventional take-up device, the tip of the thin plate that is conveyed at high speed on the air flow guide of the transfer device using the Coanda nozzle is sandwiched between the take-up core (winding reel) and the pinch roll. The thin plate can be wound around a winding core and wound by simply feeding the thin plate into the reel.

JP-A-6-47503

However, a thin plate such as an amorphous ribbon sent from a supplier such as a cast drum is thin and is blown in the air at high speed, so that the position where it is blown is difficult to be fixed. Therefore, it is very difficult to stably guide the tip of such a thin plate onto the air flow surface of the air flow guide by the high-speed creeping flow of the pressure fluid along the Coanda wall surface of the Coanda nozzle.

Further, since a thin plate made of amorphous metal or the like is thin and brittle, when it is fed into the pressing portion between the winding core and the pinch roll at high speed, the tip portion collides with the pressing portion and breaks, crushes, etc. May cause damage. Therefore, it is very difficult to stably wind and wind such a thin plate around the winding core.

An object of the present invention is to stably guide and transport a thin plate in a transport path in a thin plate transport device using a Coanda nozzle.

Another object of the present invention is to stably wind the thin plate on the winding core in the transport winding device for winding the thin plate conveyed by the thin plate transport device using the Coanda nozzle.

The invention according to claim 1 is a thin plate transport device for guiding and transporting a thin plate by a creeping flow of the pressure fluid that is blown out from a blowout slit of a Coanda nozzle along the Coanda wall surface due to the Coanda effect. On the inlet side of the transport path of the thin plate to which the thin plate is fed from the supply source to the supply destination, the Coanda nozzles on both sides are provided at two positions on both sides of the transport path to form a pair of Coanda nozzles. The thin plate fed into the space between them is guided to the transport path while being sandwiched by the creeping flow of the pressure fluid that is blown out from the Coanda nozzles on both sides and flows faster than the speed of the thin plate in the direction along the transport path. It is made to be transportable.

The invention according to claim 2 is further adjacent to the lower Coanda nozzle when the Coanda nozzles on both sides are arranged at two positions above and below along the vertical direction to form a pair of upper and lower parts in the invention according to claim 1. A thin plate further having another Coanda nozzle arranged on the downstream side along the transport path and being transported to the side of the Coanda nozzle arranged on the downstream side is blown out from the Coanda nozzle and along the transport path. The flow of the pressure fluid forming a flow faster than the speed of the thin plate in the direction makes it possible to further transport the pressure fluid to the downstream side along the transport path.

In the invention according to claim 3, further, in the invention according to claim 1 or 2, the Coanda wall surface of the Coanda nozzle has a convex surface gradually separated from the direction of the ejection shaft of the pressure fluid ejected from the ejection slit. It is a thing.

The invention according to claim 4 further comprises an invention according to any one of claims 1 to 3, wherein each of the Coanda nozzles is provided with an air blowing guide connected to the nozzle body of the Coanda nozzle, and the outlet of each Coanda nozzle is provided. The creeping flow of the pressure fluid blown out from the slit and along the Coanda wall surface becomes the creeping flow along the wind blowing surface of the air blowing guide so that the flow further flows.

The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the thin plate is an amorphous ribbon.

The invention according to claim 6 is a transport device for guiding and transporting a thin plate by a creeping flow of a pressure fluid in which a pressure fluid blown out from a blowout slit of a Coanda nozzle flows along a Coanda wall surface due to the Coanda effect. In the thin plate transport winding device including the winding device for winding the thin plate conveyed by the winding core, the winding device is used for a plurality of windings at a plurality of positions along the circumference of the winding core. A fluid nozzle is arranged, and the winding fluid nozzle generates a swirling flow of pressure fluid faster than the speed of the thin plate in the winding direction of the thin plate along the circumference of the winding core, and the winding core is generated from the speed of the thin plate. By rotating at a high peripheral speed, the tip of the thin plate that is fed along the circumference of the take-up core and makes one round of the take-up core enters between the intermediate portion of the following thin plate and the take-up core. It is gripped so that it can be wound around the take-up core.

The invention according to claim 7 further includes a wrapper device in which the take-up device is arranged around the take-up core, and the wrapper device wraps the outer peripheral surface of the take-up core. It has an arc-shaped wrapper guide that forms a swirling flow path of the pressure fluid with the outer peripheral surface, and winding fluid nozzles are installed at each of a plurality of positions facing the outer peripheral surface of the winding core in the wrapper guide. It was made like this.

The invention according to claim 8 further comprises a closed position in which the wrapper guide of the wrapper device forms a swirling flow path of the pressure fluid with the outer peripheral surface of the winding core in the invention according to claim 7. The swivel flow path can be switched to the open position to open, and in the state of being switched to the open position, the winding core is moved from the winding work position close to the winding core to the side separated from the standby position. It is designed to enable the formation of a thin-plate rolled-up space around it.

The invention according to claim 9 is the invention according to any one of claims 6 to 8, wherein the thin plate is an amorphous ribbon.

(Claims 1 and 5)
(a) In the thin plate transport device, the thin plate that is sent to the space between the Coanda nozzles on both sides by flying from the supplier is blown out from the Coanda nozzles on both sides and is a thin plate in the direction along the transport path. While being sandwiched between the creeping flows of the pressure fluid forming a flow faster than the speed of the above, the pressure fluid is guided by the transport path to enable transport. At this time, in each Coanda nozzle, the pressure fluid blown out from the small gap blowing slit at high speed attracts a large amount of surrounding fluid, and the amount of pressure fluid required to obtain the same amount of pressure fluid flow. Along with a significant reduction, it is possible to generate a thin, uniform and high-speed curtain-like laminar flow.

Therefore, even if the thin plate is thin like an amorphous ribbon and is blown in the air at high speed and the position where it is blown is difficult to be constant, the thin plate is blown out from the Coanda nozzles on both sides of the thin plate. It is sandwiched between the high-speed creeping currents of the pressure fluid, is surely caught in the space between the Coanda nozzles, and is stably guided and conveyed to a predetermined transfer path.

Even if the thin plate is thin and brittle like an amorphous ribbon, the thin plate is blown by riding on the creeping flow of the pressure fluid and does not directly collide with the Coanda nozzle or the air blowing guide, and the tip of the thin plate There is no risk of damage such as breakage or crushing.

(Claim 2)
(b) By arranging another Coanda nozzle on the downstream side of the lower Coanda nozzle among the Coanda nozzles on both sides forming a pair of upper and lower, a plurality of Coanda nozzles are installed adjacent to each other over a long range along the transport path. Therefore, the high-speed creeping flow of the pressure fluid generated by each Coanda nozzle can be made continuous over a long range along the transport path. As a result, the thin plate is stably guided and transported over a long range along the transport path.

(Claim 3)
(c) In the thin plate transport device, the Coanda wall surface of the Coanda nozzle forms a convex surface gradually away from the direction of the ejection axis of the pressure fluid ejected from the ejection slit, and the stable Coanda effect of the Coanda nozzle can be exhibited. ..

(Claim 4)
(d) In the thin plate transport device, each Coanda nozzle is provided with an air blowing guide connected to the nozzle body of the Coanda nozzle, and the pressure fluid is blown out from the outlet slit of each Coanda nozzle and flows along the Coanda wall surface. However, it becomes a creeping flow along the air blowing surface of the air blowing guide and further flows. Therefore, each Coanda nozzle can lengthen the generation range of the high-speed creeping flow of the pressure fluid together with the air blowing guide connected to the nozzle body, and the Coanda nozzle can extend the stable high-speed creeping flow along the transport path. Can be generated.

(Claims 6 and 9)
(e) In the thin plate transport winding device, a plurality of winding fluid nozzles are arranged at a plurality of positions along the circumference of the winding core. Then, the winding fluid nozzle generates a swirling flow of the pressure fluid faster than the speed of the thin plate in the winding direction of the thin plate along the circumference of the winding core, and rotates the winding core at a peripheral speed faster than the speed of the thin plate. By doing so, the thin plate can be stably fed along the circumference of the winding core.

The tip of the thin plate, which is fed along the circumference of the take-up core and goes around the take-up core once, enters between the intermediate portion of the subsequent thin plate and the take-up core and is gripped. It is possible to reliably wind the winding core.

(Claim 7)
(f) In the thin plate transport winding device, the wrapper device arranged around the winding core is a circle that wraps the outer peripheral surface of the winding core and forms a swirling flow path of the pressure fluid with the outer peripheral surface. It has an arc-shaped wrapper guide, and winding fluid nozzles are installed at each of a plurality of positions facing the outer peripheral surface of the winding core in the wrapper guide. As a result, the pressure fluid blown out by each winding fluid nozzle is blown out into the swirling flow path formed by the wrapper guide of the wrapper device between the wrapper guide and the outer peripheral surface of the winding core, and the pressure fluid blown out around the winding core described in (e) above. A swirling flow can be generated stably, and a thin plate can be stably fed along the circumference of the take-up core.

(Claim 8)
(g) The wrapper guide of the wrapper device of the above-mentioned (f) has a closed position for forming a swirling flow path of the pressure fluid and an open position for opening the swirling flow path with the outer peripheral surface of the take-up core. It is possible to switch and set, and in the state where it is switched to the open position, it is moved from the winding work position close to the winding core to the side separated from the standby position to form a thin plate winding space around the winding core. , Allows the thin plate to be continuously wound on the winding core.

FIG. 1 is a schematic front view showing a transfer winding device for a thin plate. FIG. 2 is a schematic front view showing a thin plate transport device. FIG. 3 is a schematic front view showing a thin plate winding device. FIG. 4 is a schematic plan view showing the wrapper device. FIG. 5 is a schematic view showing a Coanda nozzle. FIG. 6 is a schematic view showing a wound fluid nozzle. FIG. 7 is a schematic front view showing a modified example of the thin plate transport winding device.

The thin plate transport winding device 10 shown in FIG. 1 is composed of a transport device 100 for transporting the thin plate 1 which is an amorphous ribbon manufactured by a cast drum (cooling roll) 11 as a supply source in the present embodiment, and a transport device 100. It is configured to have a winding device 200 for winding the conveyed thin plate 1 on a winding core 210 as a supply destination. The transport device 100 is installed on the gantry 101, and the take-up device 200 is installed on the gantry 201.

The thin plate 1 which is an amorphous ribbon is manufactured by discharging molten metal onto a cast drum 11 during high-speed rotation (rotating in the clockwise direction N in the present embodiment) and quenching the plate, for example, the plate thickness. It forms a thin band with a plate width of 20 μm and a plate width of 200 mm, flows at a line speed of 1000 m / min to 1600 m / min, for example, 1200 m / min, and is separated from the cast drum 11 by a thin band peeling air nozzle 12 arranged on the downstream side thereof and conveyed. Fly to the side of device 100. Since the thin plate 1 is blown into the air by the pressure air blown from the thin band peeling air nozzle 12, the peeling position is difficult to be constant. Here, a guide roll 117, which will be described later, is arranged on the upstream side of the thin band peeling air nozzle 12 along the rotation direction N of the cast drum 11.

(Conveyor 100) (FIG. 2)
As shown in FIG. 2, the transport device 100 has Coanda nozzles on both the upper and lower sides at a position facing the strip peeling air nozzle 12 on the inlet side of the transport path of the thin plate 1 fed from the cast drum 11 to the take-up core 210. 111A and 112A are arranged, and air blowing guides 111 and 112 are connected to the downstream ends of the Coanda nozzles 111A and 112A. The upper and lower Coanda nozzles 111A and 112A and the upper and lower air blowing guides 111 and 112 connected to them are arranged at two positions on both the upper and lower sides along the vertical direction with the transport path of the thin plate 1 in between to form a pair of upper and lower. It is said that.

In each Coanda nozzle 111A, 112A (the same applies to the Coanda nozzles 113A, 114A, 115A described later), a blowout slit for the pressure fluid (pressure air in this embodiment) is formed in the nozzle body, and the pressure air blown out from the blowout slit. A Coanda wall surface is formed on the surface of the nozzle body located on the downstream side of the blowout stream. As a result, the pressure air blown out from the Coanda nozzles 111A and 112A becomes a creeping flow of the pressure air flowing along the Coanda wall surface due to the Coanda effect, and the thin plate 1 can be guided and conveyed along the transfer path. To.

The Coanda effect is that when a gas or liquid pressure fluid is blown out from a blowout slit, the blowout flow gradually separates from the direction of the blowout axis and flows near the direction along the convex Coanda wall surface as a creeping flow. The tendency to say.

In each of the Coanda nozzles 111A and 112A, the pressure air blown out from the small gap blowing slit at high speed attracts a large amount of ambient air, and the amount of compressed air required to obtain the same amount of pressure fluid flow. It is possible to generate a uniform curtain-like laminar flow in the longitudinal direction of the nozzle body.

Therefore, the blown fluid (blowout air) blown out from the upper and lower pairs of Coanda nozzles 111A and 112A has an action of drawing in the air on the front side of the Coanda nozzles 111A and 112A. As a result, the flying tip of the thin plate 1 fed into the space between the upper and lower Coanda nozzles 111A and 112A and between the upper and lower air blowing guides 111 and 112 is blown out from the Coanda nozzles 111A and 112A. While being sandwiched by the creeping flow of pressure air forming a flow faster than the speed of the thin plate 1 in the direction along the transport path of the thin plate 1, it is guided and transported along the transport path. In this way, the flying tip of the thin plate 1 is surely caught in the space between the upper and lower Coanda nozzles 111A and 112A and between the upper and lower air blowing guides 111 and 112, and the Coanda nozzle 113A and the air blowing guide further downstream. It is blown to the side of 113.

Another Coanda nozzle 113A is arranged on the downstream side along the transport path of the thin plate 1 adjacent to the lower Coanda nozzle 112A of the upper and lower Coanda nozzles 111A and 112A, and at the downstream end of the Coanda nozzle 113A. The air blow guide 113 (tail clipper 113T) is connected. The thin plate 1 transported to the side of the Coanda nozzle 113A is blown out from the Coanda nozzle 113A and flows along the transport path in a direction faster than the speed of the thin plate 1 due to the flow of pressure air along the transport path. It is transported to the downstream side.

Here, the transport guide 113 is lowered by the cylinder device 113S when the thin plate 1 is passed through, and the thin plate 1 (NG thin band) is pushed down by the blown air of the Coanda nozzle 113A until the quality of the thin plate 1 is stabilized. Blow towards. A Coanda nozzle 116A is also attached to the inlet guide plate 116 of the dust box, and the thin plate 1 is blown.

Then, when the quality of the thin plate 1 becomes stable, the air blowing guide 113 is slid upward by the cylinder device 113S, and at the same time, the thin plate 1 is cut by the knife 113N of the tail clipper 113T. As a result, the thin plate 1 is blown to the side of the Coanda nozzles 114A and 115A and the air blowing guides 114 and 115 further downstream.

Other Coanda nozzles 114A and 115A are arranged in order on the downstream side of the transport path of the thin plate 1 adjacent to the Coanda nozzle 113A, and the air blowing guides 114 and 115 are connected to the downstream ends of the Coanda nozzles 114A and 115A. .. The thin plate 1 blown to the side of the Coanda nozzles 114A and 115A is blown out from the Coanda nozzles 114A and 115A and flows along the transport path in a direction faster than the speed of the thin plate 1 by the flow of pressure air. It is further transported to the winding device 200 side located on the downstream side along the transport path.

As the above-mentioned Coanda nozzle 111A (same for 112A, 113A, 114A, 115A) applied to the transport device 100, for example, the Coanda nozzle 20 as shown in (i) to (iv) below can be adopted.

(i) As shown in FIG. 5, the coranda nozzle 20 includes a recess 31 having a nozzle body 30 and a cover body 40, and the nozzle body 30 serves as a pressure fluid filling chamber 21. A slit forming portion 32 that continuously forms a pressure fluid blowing slit 22 in the recess 31 is provided by being recessed in the front surface of the nozzle body 30 along the longitudinal direction of the nozzle body 30, and the cover body 40 is bolted. In a state of being fixed to the front surface of the nozzle body 30 by 33, the recess 31 of the nozzle body 30 covered with the cover body 40 becomes the pressure fluid filling chamber 21, and the cover body 40 becomes the nozzle body 30. It is assumed that the pressure fluid outlet slit 22 having a constant slit width w is formed by the gap G formed in the height direction with respect to the slit forming portion 32, and is located on the downstream side of the pressure fluid outlet flow ejected from the outlet slit 22. On the surface of the nozzle body 30 located, the pressure fluid flows as a creeping flow F1 along the surface, and a coranda wall surface 34 exhibiting a coranda effect is formed. Further, preferably, a cover body 40 fixed to the front surface of the nozzle body 30 is placed at an intermediate portion of the blowout slit 22 along the longitudinal direction of the nozzle body 30 in the height direction with respect to the slit forming portion 32 of the nozzle body 30. A support means 35 (rib 35A) is provided, and the height H of the support means 35 (rib 35A) is set to the same value as the slit width w of the blowout slit 22 in each portion of the nozzle body 30 in the longitudinal direction. Therefore, the influence of the surface roughness and waviness of the nozzle body 30 and the cover body 40 due to machining, or the warp of the cover body 40 due to assembly is suppressed, and the slit width w of the blowout slit 22 can be easily set in the longitudinal direction of the nozzle body 30. Can be made similar. As a result, the Coanda nozzle 20 exerts a stable Coanda effect, and the pressure fluid blown out from the blowout slit 22 of the small gap G at high speed is a stable creepage surface composed of a thin and uniform curtain-like laminar flow in the longitudinal direction of the nozzle body 30. The flow can be reliably generated.

(ii) In the Coanda nozzle 20, the Coanda wall surface 34 formed on the nozzle body 30 forms a convex surface that gradually separates from the direction of the outlet axis of the pressure fluid ejected from the outlet slit 22, and has a stable Coanda effect. Can be demonstrated.

(iii) In the Coanda nozzle 20, the slit width w of the blowout slit 22 is preferably 0.1 to 0.2 mm, more preferably 0.15 mm, so that the blowout slit having a small gap G is formed. The slit width w of 22 can be easily and surely made uniform in the longitudinal direction of the nozzle body 30.

(iv) In the Coanda nozzle 20, support means 35 (rib 35A) is provided at an intermediate portion of the blowout slit 22 along the longitudinal direction of the nozzle body 30, and blowout ports 22A are provided on both sides of the support means 35 (rib 35A). When forming, the length (L) of each outlet 22A along the longitudinal direction of the nozzle body 30 is relative to the length (K) 1 of the supporting means 35 (rib 35A) along the longitudinal direction of the nozzle body 30. Is preferably 50 to 80, and more preferably 60 to 70, so that the slit width w of the blowout slit 22 can be easily and surely uniformed in the longitudinal direction of the nozzle body 30.

(v) In the Coanda nozzle 20, an air flow that is continuous with the downstream side of the coastal flow F1 of the pressure fluid along the Coanda wall surface 34 formed on the nozzle body 30 and further flows as the creeping flow F2 along the surface. Has a face. The air blowing surface is formed on the nozzle main body 30 and the air blowing guide 50 (corresponding to the air blowing guides 111, 112, 113, 114, 115 in the transport device 100) connected to the nozzle main body 30. Therefore, the stable coastal flows F1 and F2 of the pressure fluid generated by the Coanda nozzle 20 can be widely extended to the downstream side of the Coanda wall surface 34.

In each Coanda nozzle 111A, 112A, 113A, 114A, 115A to which the Coanda nozzle 20 is applied, the slit length (length along the longitudinal direction of the nozzle body 10) of the blowout slit 22 in the Coanda nozzle 20 is determined. It is preferably 1.1 to 1.5 times the plate width of the thin plate 1. If it is less than 1.1 times, the blown air that touches the thin plate 1 on both ends of the blowout slit 22 may be disturbed, and if it is more than 1.5 times, the consumption of the blown air becomes unnecessarily large and the energy consumption is consumed. Is wasted and is not preferable.

Therefore, according to the transport device 100 of the present embodiment, the following functions and effects are obtained.
(a) In the transport device 100 of the thin plate 1, the thin plate 1 supplied to the space between the Coanda nozzles 111A and 112A on both sides by flying from the supply source is blown out from the Coanda nozzles 111A and 112A on both sides. While being sandwiched between the creeping currents on both sides of the pressure air (the creeping currents F1 and F2 on one side and the creeping currents F1 and F2 on the other side) that flow in the direction along the transport path faster than the speed of the thin plate 1, the transport It is guided by the route and made transportable. At this time, in the Coanda nozzles 111A and 112A, the pressure air blown out from the blowout slit of the small gap at high speed attracts a large amount of ambient air, and the compression required to obtain the same amount of pressure fluid flow. Along with significantly reducing the amount of air, it is possible to generate a thin, uniform and high-speed curtain-like laminar flow.

Therefore, even if the thin plate 1 is thin like an amorphous ribbon and is blown in the air at high speed and the position where the thin plate 1 is blown is difficult to be constant, the thin plate 1 is the Coanda nozzles 111A and 112A. It is sandwiched between high-speed creeping currents on both sides of the pressure air blown out from the Coanda nozzles, and is reliably caught in the space between the Coanda nozzles 111A and 112A, and is stably guided and transported to a predetermined transport path. Become.

Even if the thin plate 1 is thin and brittle like an amorphous ribbon, the thin plate 1 is blown so as to ride on the creeping currents F1 and F2 of the pressure air, and is directly connected to the Coanda nozzles 111A and 112A and the air blowing guides 111 and 112. There is no risk of damage such as breakage or crushing at the tip of the thin plate 1 or the like.

(b) A plurality of Coanda nozzles 112A, 113A, 114A by arranging the other Coanda nozzles 113A, 114A, 115A on the downstream side of the lower Coanda nozzle 112A of the two upper and lower Coanda nozzles 111A, 112A. , 115A will be installed adjacent to each other over a long range along the transport path, and the high-speed coastal flows F1 and F2 of the pressure air generated by the Coanda nozzles 112A, 113A, 114A and 115A will be installed over a long range along the transport path. Can be continuous. As a result, the thin plate 1 is stably guided and transported over a long range along the transport path.

(c) In the transport device 100 of the thin plate 1, the Coanda wall surfaces of the Coanda nozzles 112A, 113A, 114A, 115A form a convex surface gradually separated from the direction of the ejection shaft of the pressure air ejected from the ejection slit. A stable Coanda effect can be exhibited at the nozzles 112A, 113A, 114A, and 115A.

(d) In the transfer device 100 of the thin plate 1, the Coanda nozzles 112A, 113A, 114A, 115A are connected to the nozzle bodies of the Coanda nozzles 112A, 113A, 114A, 115A, respectively. The coastal flow F1 of the pressure air blown out from the blowout slits of the Coanda nozzles 112A, 113A, 114A, 115A along the Coanda wall surface along the blower surface of the Coanda nozzles 112A, 113A, 114A, 115A is provided with 115. It becomes a coastal flow F2 and flows further. Therefore, together with the air blowing guides 112, 113, 114, 115 in which the Coanda nozzles 112A, 113A, 114A, 115A are connected to the nozzle body, the generation range of the high-speed coastal currents F1 and F2 of the pressure air can be lengthened. The Coanda nozzles 112A, 113A, 114A, 115A can generate stable high-speed coastal currents F1 and F2 in a constant length range along the transport path.

(Winling device 200) (FIGS. 3 and 4)
As shown in FIGS. 3 and 4, the take-up device 200 winds the thin plate 1 conveyed by the transfer device 100 on the take-up core 210. The winding core 210 is supported by a carriage 202 installed on the gantry 201, and the winding work position where the winding of the thin plate 1 is started by the movement of the carriage 202 and the wound thin plate 1 are continued thereafter. It is switched and set to the winding position.

The winding device 200 attaches the winding guide 220 to the downstream side of the air blowing guide 115 connected to the downstream side of the above-mentioned Coanda nozzle 115A arranged in the transport path of the thin plate 1 in the transport device 100, and winds the guide. A winding air nozzle 221A is arranged at the upstream end of 220. The winding air nozzle 221A of the winding guide 220 skips the Coanda nozzle 115A of the transport device 100 and the thin plate 1 blown by the air blowing guide 115, and stands by at a standby position on the downstream side of the winding guide 220. The air is blown into the space between the winding core 210 and the wrapper device 230 arranged around the winding core 210.

The air blowing guide 115, the winding guide 220, and the winding air nozzle 221A descend from the transport path of the thin plate 1 by the cylinder device 115S after the thin plate 1 has been wound around the winding core 210 as described later, and are wound. It is possible to secure a thick space for the thin plate 1 around the core 210.

The take-up device 200 supports the wrapper device 230 on the support base 203 mounted on the carriage 202. The wrapper device 230 has a lower wrapper guide 231 and an upper wrapper guide 232. Each wrapper guide 231R and 232 has a C-shaped arcuate cylinder 231R and 232R fixed to the C-shaped inner peripheral surfaces of the C-shaped frames 231F and 232F and their C-shaped frames 231F and 232F. The C-shaped frame 231F of each wrapper guide 231 is fixedly attached to the support base 203, and one end of the C-shaped frame 232F of the upper wrapper guide 232 is the C-shaped frame 231F of the lower wrapper guide 231. A pin is connected to the upper end portion so as to be openable and closable via a connecting pin 233. That is, the wrapper device 230 forms a C-shape along the periphery of the winding core 210 by the C-shaped arcuate cylinders 231R and 232R of the wrapper guides 231 and 232, and wraps the outer peripheral surface of the winding core 210. A space for winding a thin plate (a space for forming the swirling flow path 230F of pressure air) is formed between the surface and the surface. That is, each wrapper guide 231 and 232 wraps the outer peripheral surface of the take-up core 210 and forms a swirling flow path 230F of pressure air with the outer peripheral surface.

In each wrapper guide 231 and 232, the wrapper device 230 has a plurality of winding fluid nozzles 234A to as shown in FIG. 6 at each of a plurality of positions (5 positions in the present embodiment) facing the outer peripheral surface of the winding core 210. 234E is placed. That is, the wrapper device 230 has C-shaped frames 231F and 232F for each air pipe 235 extending along the axial direction on the outer peripheral side of each C-shaped arcuate cylinder 231R and 232R in each wrapper guide 231 and 232. The air outlets 236 of the wound fluid nozzles 234A to 234E, which are supported by the air pipes 235 and connected to the air pipes 235, face the swirling flow path 230F via the outlet windows 237 cut out in the C-shaped arcuate cylinders 231R and 232R. No. As a result, the pressure air blown from each of the winding fluid nozzles 234A to 234E toward the swirling flow path 230F generates a swirling flow toward the downstream side along the periphery of the winding core 210. Each winding air nozzle 234A to 234E of the wrapper device 230 blows air at a wind speed faster than the line speed (speed of the thin plate 1), and the winding core 210 is rotated at a peripheral speed faster than the line speed (speed of the thin plate 1). The thin plate 1 that has been blown into the space between the winding core 210 and the wrapper device 230 by the winding air nozzle 221A of the winding guide 220 described above is blown along the circumference of the winding core 210. Will be sent.

The wrapper device 230 is switched between a closed position in which at least a part thereof forms a swirling flow path 230F of pressure air and an open position in which the swirling flow path 230F is opened with the outer peripheral surface of the take-up core 210. In a state where it is settable and switched to the open position, it is moved from the winding work position close to the winding core 210 to the side separated from the standby position to provide a thick space for the thin plate 1 around the winding core 210. Make it formable. In the present embodiment, the upper wrapper guide 232 of the wrapper device 230 is opened and closed with respect to the lower wrapper guide 231 by the cylinder device 232S pivotally supported by the support base 203, and the thin plate 1 is wound around the winding core 210. After completion, it is swung upward so that it can be separated from the take-up core 210.

In the take-up core 200, when the tip of the thin plate 1 goes around the take-up core 210 once, the tip of the thin plate 1 is between the intermediate part of the thin plate 1 and the take-up core 210 which are sent later. It enters and is gripped and winds around the take-up core 210.

The thin plate 1 is tensioned by being wound around the take-up core 210, and is stretched by this, and is stably conveyed in contact with the guide rolls 117 and 118 of the transfer device 100 which has been rotated at the line speed from the beginning. , It is stably wound around the winding core 210. In FIG. 1, P indicates a stable transport line of the thin plate 1 wound from the cast drum 11 through the guide rolls 117 and 118 to the winding core 210.

By detecting the tension of the thin plate 1 or the torque of the winding core 210, it is detected that the thin plate 1 is wound around the winding core 210, and at the same time, the winding core 210 reaches the speed (line speed) of the thin plate 1. It is rotated in synchronization.

In this way, after the thin plate 1 is wound around the winding core 210, the upper wrapper guide 232 of the wrapper device 230 is swung upward by the cylinder device 232S mounted on the support base 203 to the side of the winding core 210. The entire wrapper device 230 is moved from the winding work position to the standby position by the cylinder device 230S interposed between the carriage 202 and the support base 203, and the winding guide 220 is also lowered and wound. A space for thickening the thin plate 1 is secured around the core 210.

The entire winding device 200 including the carriage 202 equipped with the winding core 210 and the wrapper device 230 moves from the winding work position to the winding position, and continues winding the thin plate 1.

Therefore, according to the winding device 200 of the present embodiment, the following effects are obtained.
(e) In the transport winding device 10 of the thin plate 1, a plurality of winding fluid nozzles 234A to 234E are arranged at each of a plurality of positions along the periphery of the winding core 210. Then, the winding fluid nozzles 234A to 234E generate a swirling flow of pressure air faster than the speed of the thin plate 1 in the winding direction of the thin plate 1 along the circumference of the winding core 210, and the winding core 210 is formed by the thin plate 1. The thin plate 1 can be stably fed along the circumference of the take-up core 210 by rotating at a peripheral speed faster than the speed of.

The tip of the thin plate 1 that is fed along the circumference of the take-up core 210 and goes around the take-up core 210 once is between the intermediate portion of the subsequent thin plate 1 and the take-up core 210. It enters and is gripped so that it can be reliably wound around the take-up core 210.

(f) In the transport winding device 10 of the thin plate 1, the wrapper device 230 arranged around the winding core 210 wraps the outer peripheral surface of the winding core 210 and swirls the pressure air between the outer peripheral surface and the outer peripheral surface. It has arc-shaped wrapper guides 231 and 232 forming the road 230F, and winding fluid nozzles 234A to 234E are installed at each of a plurality of positions facing the outer peripheral surface of the winding core 210 in the wrapper guides 231 and 232. As a result, the pressure air blown out by the winding fluid nozzles 234A to 234E is blown out to the swirling flow path 230F formed by the wrapper guides 231 and 232 of the wrapper device 230 with the outer peripheral surface of the winding core 210, and is wound. The swirling flow of (e) described above can be stably generated around the core 210, and the thin plate 1 can be stably fed along the circumference of the winding core 210.

(g) The wrapper guides 231 and 232 of the wrapper device 230 of the above-mentioned (f) have a closed position forming a swirling flow path 230F for pressure air with the outer peripheral surface of the take-up core 210, and the swirling flow path 230F. It is possible to switch to the open position to open, and in the state of being switched to the open position, it is moved to the side away from the winding work position close to the winding core 210 to the standby position and around the winding core 210. A thick space for winding the thin plate 1 is formed in the winding core 210 so that the thin plate 1 can be continuously wound.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like within a range not deviating from the gist of the present invention. Included in the present invention. For example, the transport winding device 10 (conveying device 100 and winding device 200) of the thin plate 1 of the present invention can be applied to the thin plate 1 other than the amorphous ribbon.

In the present embodiment, the thin band peeling air nozzle 12 is arranged on the downstream side of the guide roll 117 along the rotation direction N of the cast drum 11 in accordance with the normal rotation of the cast drum 11 as shown in FIG. Then, the guide roll 117 was arranged on the upstream side (upper side with respect to the thin band peeling air nozzle 12 in FIG. 1) of the thin band peeling air nozzle 12 along the rotation direction of the cast drum 11.

However, when the cast drum 11 reverses in the counterclockwise direction T as shown in FIG. 7, a thin band arranged on the downstream side of the thin plate 1 flowing along the rotation direction T of the cast drum 11. The guide roll 117 is arranged on the upstream side of the peeling air nozzle 12 (lower side with respect to the thin band peeling air nozzle 12 in FIG. 7). Further, in the transport device 100 in this case, the Coanda nozzle 110A is additionally arranged near the thin band peeling air nozzle 12 of the Coanda nozzle 111A. The air blown out from the Coanda nozzle 110A flows as a creeping flow along the air blowing guide 110G, and causes an action of drawing in the surrounding air on the front side thereof. As a result, the flying tip of the thin plate 1 peeled from the cast drum 11 by the thin band peeling air nozzle 12 passes between the Coanda nozzle 110A and the guide roll 117, and between the upper and lower Coanda nozzles 111A and 112A, and the upper and lower winds. It is reliably caught in the space between the feeding guides 111 and 112, and is blown to the side of the Coanda nozzle 113A and the air blowing guide 113 (tail clipper 113T) further downstream.

According to the present invention, in a thin plate conveying device using a Coanda nozzle, the thin plate can be stably guided and conveyed in a conveying path.

Further, according to the present invention, in a thin plate transport winding device for winding a thin plate conveyed by a transport device using a Coanda nozzle, the thin plate can be stably wound around a winding core.

1 Thin plate 10 Thin plate transport winding device 20 Coanda nozzle 22 Blow-out slit 30 Nozzle body 34 Coanda wall surface 100 Transport device 111, 112, 113, 114, 115 Air blowing guide 111A, 112A, 113A, 114A, 115A Coandan nozzle 200 winding Device 210 Winding core 230 Wrapper device 230F Swirling flow path 231, 232 Wrapper guides 234A to 234E Winding fluid nozzle

The present invention relates to a thin band transport device such as an amorphous ribbon and a transport winding device.

Conventionally, a transfer winding device for a thin plate such as an amorphous ribbon has been proposed.
As described in Patent Document 1, the conventional amorphous ribbon transport winding device is an amorphous ribbon due to the creeping flow of the pressure fluid blown out from the blowout slit of the Coanda nozzle along the Coanda wall surface due to the Coanda effect. It is configured to have a transport device for guiding and transporting the fluid, and a winding device for winding the amorphous ribbon transported by the transport device on the winding core.

Here, in the conventional transport device, when a strip-shaped thin plate of an amorphous ribbon manufactured by quenching with a cast drum (cooling roll) is peeled off from the cast drum as a supply source and flies at high speed, the thin plate is formed. The tip of the pressure fluid along the Coanda wall surface of the Coanda nozzle is simply guided onto the air flow surface (transport surface) of the air flow guide (conveyor table) by a high-speed creeping flow, and can be transported at high speed.

Further, in the conventional take-up device, the tip of the thin plate that is conveyed at high speed on the air flow guide of the transfer device using the Coanda nozzle is sandwiched between the take-up core (winding reel) and the pinch roll. The thin plate can be wound around a winding core and wound by simply feeding the thin plate into the reel.

JP-A-6-47503

However, a thin plate such as an amorphous ribbon sent from a supplier such as a cast drum is thin and is blown in the air at high speed, so that the position where it is blown is difficult to be fixed. Therefore, it is very difficult to stably guide the tip of such a thin plate onto the air flow surface of the air flow guide by the high-speed creeping flow of the pressure fluid along the Coanda wall surface of the Coanda nozzle.

Further, since a thin plate made of amorphous metal or the like is thin and brittle, when it is fed into the pressing portion between the winding core and the pinch roll at high speed, the tip portion collides with the pressing portion and breaks, crushes, etc. May cause damage. Therefore, it is very difficult to stably wind and wind such a thin plate around the winding core.

An object of the present invention is the conveying device of the ribbon using Coanda nozzle is to transport the ribbon stably induced to the conveying path.

Another object of the present invention is to stably wind the thin band around the winding core in the transport winding device for winding the thin band conveyed by the thin band transport device using the Coanda nozzle.

Invention, the creeping flow of pressure fluid flowing to the pressure fluid blown from the blowing slit of the Coanda nozzle is along the Coanda wall by the Coanda effect, conveying apparatus of the ribbon to be transported by inducing thin strip according to claim 1 in both sides constituting the inlet side of the conveying path of the ribbon to the ribbon is fed from the supply source to supply destination, the pair is disposed in each of two upper and lower positions along the direction perpendicular to the conveying direction of the ribbon of having a Coanda nozzle, flight tip of the thin strip coming is fed flies in the space between the opposite sides of the Coanda nozzle, the pressure fluid Ru blown out from both sides of the Coanda nozzle is, the conveyance path of the ribbon While drawing in a large amount of air around the Coanda nozzles on both sides arranged on the inlet side, the speed of the thin band is faster than the speed of the thin band along the Coanda wall surface of the Coanda nozzles on both sides in the direction along the transport path of the thin band. while under that generates a curtain of creeping flow stream, and to be enabled conveyed sandwiched flow on both sides of the creeping flow along the Coanda wall of Coanda nozzle of the both side is guided to the conveying path It is a thing.

The invention according to claim 2 is further adjacent to the lower Coanda nozzle when the Coanda nozzles on both sides are arranged at two positions above and below along the vertical direction to form a pair of upper and lower parts in the invention according to claim 1. It further has another Coanda nozzle arranged on the downstream side along the transport path, and a thin band transported to the side of the Coanda nozzle arranged on the downstream side is blown out from the Coanda nozzle into the transport path. The flow of the pressure fluid forming a flow faster than the speed of the thin band in the direction along the transport path makes it possible to further transport the pressure fluid to the downstream side along the transport path.

In the invention according to claim 3, further, in the invention according to claim 1 or 2, the Coanda wall surface of the Coanda nozzle has a convex surface gradually separated from the direction of the ejection shaft of the pressure fluid ejected from the ejection slit. It is a thing.

The invention according to claim 4 further comprises an invention according to any one of claims 1 to 3, wherein each of the Coanda nozzles is provided with an air blowing guide connected to the nozzle body of the Coanda nozzle, and the outlet of each Coanda nozzle is provided. The creeping flow of the pressure fluid blown out from the slit and along the Coanda wall surface becomes the creeping flow along the wind blowing surface of the air blowing guide so that the flow further flows.

The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the thin band is an amorphous ribbon.

The invention according to claim 6 is the invention according to any one of claims 1 to 5, further, a creeping flow of the pressure fluid in which the pressure fluid blown out from the outlet slit of the Coanda nozzle flows along the Coanda wall surface due to the Coanda effect. The winding device comprises a winding device for winding the thin band conveyed by the winding core, and the winding device has a plurality of winding fluid nozzles arranged at a plurality of positions along the circumference of the winding core. with the fluid nozzle the winding generates toward the swirling flow of the faster pressure fluid than the speed of the ribbon in the winding direction of the ribbon along the periphery of the winding core, the winding core at a faster peripheral speed than the speed of the thin strip By rotating, the tip of the thin band that is fed along the circumference of the take-up core and goes around the take-up core enters between the middle part of the following thin band and the take-up core to grip. It is made possible to wind around the take-up core.

The invention according to claim 7 further includes a wrapper device in which the take-up device is arranged around the take-up core, and the wrapper device wraps the outer peripheral surface of the take-up core. It has an arc-shaped wrapper guide that forms a swirling flow path of the pressure fluid with the outer peripheral surface, and winding fluid nozzles are installed at each of a plurality of positions facing the outer peripheral surface of the winding core in the wrapper guide. It was made like this.

The invention according to claim 8 further comprises a closed position in which the wrapper guide of the wrapper device forms a swirling flow path of the pressure fluid with the outer peripheral surface of the winding core in the invention according to claim 7. The swivel flow path can be switched to the open position to open, and in the state of being switched to the open position, the winding core is moved from the winding work position close to the winding core to the side separated from the standby position. It is designed to allow the formation of a thin band of thick space around it.

(Claims 1 and 5)
(a) In the thin band transport device, the thin band that is sent to the space between the Coanda nozzles on both sides by flying from the supply source is blown out from the Coanda nozzles on both sides and follows the transport path. While being sandwiched between the creeping flows of the pressure fluid forming a flow faster than the velocity of the thin band , it is guided by the transport path and made transportable. At this time, in each Coanda nozzle, the pressure fluid blown out from the blowout slit of the small gap at high speed attracts a large amount of peripheral fluid, and the amount of pressure fluid required to obtain the same amount of pressure fluid flow. Along with a significant reduction, it is possible to generate a thin, uniform and high-speed curtain-like laminar flow.

Therefore, even if the thin band is thin like an amorphous ribbon and is blown in the air at high speed and the position where it is blown is difficult to be constant, the thin band is from the Coanda nozzles on both sides of them. It is sandwiched between the high-speed creeping flows of the pressure fluid to be blown out, is surely caught in the space between the Coanda nozzles, and is stably guided and transported to a predetermined transport path.

Note that as the ribbon is an amorphous ribbon thin, even brittle, thin strip is aeolian as ride creeping flow of the pressure fluid, without having to directly collide with the Coanda nozzle and aeolian guide, ribbon There is no risk of damage such as breakage or crushing at the tip of the object.

(Claim 2)
(b) By arranging another Coanda nozzle on the downstream side of the lower Coanda nozzle among the Coanda nozzles on both sides forming a pair of upper and lower, a plurality of Coanda nozzles are installed adjacent to each other over a long range along the transport path. Therefore, the high-speed creeping flow of the pressure fluid generated by each Coanda nozzle can be made continuous over a long range along the transport path. As a result, the thin band is stably guided and transported over a long range along the transport path.

(Claim 3)
(c) In the thin band transport device, the Coanda wall surface of the Coanda nozzle forms a convex surface that gradually separates from the direction of the ejection axis of the pressure fluid ejected from the ejection slit, and exhibits a stable Coanda effect in the Coanda nozzle. it can.

(Claim 4)
(d) In the thin band transport device, each Coanda nozzle is provided with an air blowing guide connected to the nozzle body of the Coanda nozzle, and the pressure fluid is blown out from the outlet slit of each Coanda nozzle and along the Coanda wall surface. The flow becomes a creeping flow along the air blowing surface of the air blowing guide and further flows. Therefore, each Coanda nozzle can lengthen the generation range of the high-speed creeping flow of the pressure fluid together with the air blowing guide connected to the nozzle body, and the Coanda nozzle can extend the stable high-speed creeping flow along the transport path. Can be generated.

(Claim 6 )
(e) In the thin band transport winding device, a plurality of winding fluid nozzles are arranged at a plurality of positions along the circumference of the winding core. Then, the fluid nozzle the winding is produced toward the winding direction of the ribbon along the swirling flow of the faster pressure fluid than the speed of the ribbon around the winding core, the winding core faster than the rate of the thin strip circumference By rotating at a high speed, the thin band can be stably fed along the circumference of the take-up core.

The tip of the thin band that is fed along the circumference of the winding core in this way and goes around the winding core once enters between the intermediate part of the subsequent thin band and the winding core and grips. The winding core can be reliably wound around the winding core.

(Claim 7)
(f) In the thin band transport winding device, the wrapper device arranged around the winding core wraps the outer peripheral surface of the winding core and forms a swirling flow path of the pressure fluid with the outer peripheral surface. It has an arc-shaped wrapper guide, and winding fluid nozzles are installed at each of a plurality of positions facing the outer peripheral surface of the winding core in the wrapper guide. As a result, the pressure fluid blown out by each winding fluid nozzle is blown out into the swirling flow path formed by the wrapper guide of the wrapper device between the wrapper guide and the outer peripheral surface of the winding core, and the pressure fluid blown out around the winding core described in (e) above. A swirling flow can be generated stably, and a thin band can be stably fed along the circumference of the take-up core.

(Claim 8)
(g) The wrapper guide of the wrapper device of the above-mentioned (f) has a closed position for forming a swirling flow path of the pressure fluid and an open position for opening the swirling flow path with the outer peripheral surface of the take-up core. It is possible to switch and set, and in the state where it is switched to the open position, it is moved from the winding work position close to the winding core to the side separated from the standby position to form a thin band winding space around the winding core. Then, the thin band can be continuously wound around the winding core.

FIG. 1 is a schematic front view showing a thin band transport winding device. FIG. 2 is a schematic front view showing a thin band transport device. FIG. 3 is a schematic front view showing a thin band winding device. FIG. 4 is a schematic plan view showing the wrapper device. FIG. 5 is a schematic view showing a Coanda nozzle. FIG. 6 is a schematic view showing a wound fluid nozzle. FIG. 7 is a schematic front view showing a modified example of the thin band transport winding device.

The thin band transport winding device 10 shown in FIG. 1 includes a transport device 100 for transporting the thin band 1 which is an amorphous ribbon manufactured by a cast drum (cooling roll) 11 as a supply source in the present embodiment, and a transport device. It is configured to have a winding device 200 for winding the thin band 1 conveyed by 100 on a winding core 210 as a supply destination. The transport device 100 is installed on the gantry 101, and the take-up device 200 is installed on the gantry 201.

The thin band 1 which is an amorphous ribbon is manufactured by ejecting molten metal onto a cast drum 11 during high-speed rotation (rotating in the clockwise direction N in the present embodiment) and quenching, for example, a plate. It forms a thin band with a thickness of 20 μm and a plate width of 200 mm, flows at a line speed of 1000 m / min to 1600 m / min, for example, 1200 m / min, and is peeled from the cast drum 11 by a thin band peeling air nozzle 12 arranged on the downstream side thereof. It flies to the side of the transport device 100. Since the thin band 1 is blown into the air by the pressure air blown from the thin band peeling air nozzle 12, the peeling position is difficult to be constant. Here, a guide roll 117, which will be described later, is arranged on the upstream side of the thin band peeling air nozzle 12 along the rotation direction N of the cast drum 11.

(Conveyor 100) (FIG. 2)
As shown in FIG. 2, the transport device 100 is located on the inlet side of the transport path of the thin band 1 fed from the cast drum 11 to the take-up core 210, at a position facing the thin band peeling air nozzle 12, and is located on both the upper and lower sides. The nozzles 111A and 112A are arranged, and the air blowing guides 111 and 112 are connected to the downstream ends of the Coanda nozzles 111A and 112A. The upper and lower Coanda nozzles 111A and 112A and the upper and lower air blowing guides 111 and 112 connected to them are arranged at two positions on both the upper and lower sides along the vertical direction with the transport path of the thin band 1 in between to form a pair of upper and lower. It is supposed to be.

In each Coanda nozzle 111A, 112A (the same applies to the Coanda nozzles 113A, 114A, 115A described later), a blowout slit for the pressure fluid (pressure air in this embodiment) is formed in the nozzle body, and the pressure air blown out from the blowout slit. A Coanda wall surface is formed on the surface of the nozzle body located on the downstream side of the blowout stream. As a result, the pressure air blown out from the Coanda nozzles 111A and 112A becomes a creeping flow of the pressure air flowing along the Coanda wall surface due to the Coanda effect, and the thin band 1 is guided and conveyed along the transfer path. to enable.

The Coanda effect is that when a gas or liquid pressure fluid is blown out from a blowout slit, the blowout flow gradually separates from the direction of the blowout axis and flows near the direction along the convex Coanda wall surface as a creeping flow. The tendency to say.

In each of the Coanda nozzles 111A and 112A, the pressure air blown out from the small gap blowing slit at high speed attracts a large amount of ambient air, and the amount of compressed air required to obtain the same amount of pressure fluid flow. It is possible to generate a uniform curtain-like laminar flow in the longitudinal direction of the nozzle body.

Therefore, the blown fluid (blowout air) blown out from the upper and lower pairs of Coanda nozzles 111A and 112A has an action of drawing in the air on the front side of the Coanda nozzles 111A and 112A. As a result, the flying tip of the thin band 1 fed into the space between the upper and lower Coanda nozzles 111A and 112A and between the upper and lower air blowing guides 111 and 112 blows out from the Coanda nozzles 111A and 112A. while being sandwiched creeping flow of pressure air in the direction along the transport path of the thin strip 1 forms a fast flow than the speed of the ribbon 1 is, and is conveyed is guided to conveying path. In this way, the flying tip of the thin band 1 is surely caught in the space between the upper and lower Coanda nozzles 111A and 112A and between the upper and lower air blowing guides 111 and 112, and the Coanda nozzle 113A and the air blowing further downstream. It is blown to the side of the guide 113.

Another Coanda nozzle 113A is arranged on the downstream side along the transport path of the thin band 1 adjacent to the lower Coanda nozzle 112A of the upper and lower Coanda nozzles 111A and 112A, and is located at the downstream end of the Coanda nozzle 113A. Is connected to the air flow guide 113 (tail clipper 113T). Ribbon 1 which has been conveyed to the side of the Coanda nozzle 113A is the pressure air flow forming the faster flow than the speed of direction in the thin strip 1 along the conveying path is blown from said Coanda nozzle 113A, the transport path It is transported to the downstream side of the line.

Here, the conveyance guide 113, at the time of passing groups of ribbon 1 have moved down by the cylinder device 113S, by blowing air Coanda nozzle 113A of the ribbon 1 (NG ribbon) to the quality of the ribbon 1 is stabilized Blow toward the dust box below. Incidentally, though Coanda nozzle 116A is attached to the inlet guide plate 116 of the dust box and aeolian the ribbon 1.

Then, when the quality of the ribbon 1 is stable, aeolian guide 113 is slid upward by the cylinder unit 113S, to cut the ribbon 1 simultaneously with a knife 113N tail clipper 113T. As a result, the thin band 1 is blown to the side of the Coanda nozzles 114A and 115A and the air blowing guides 114 and 115 further downstream.

Other Coanda nozzles 114A and 115A are sequentially arranged on the downstream side of the transport path of the thin band 1 adjacent to the Coanda nozzle 113A, and the air blowing guides 114 and 115 are connected to the downstream ends of the Coanda nozzles 114A and 115A. There is. These Coanda nozzle 114A, ribbon 1 that has been aeolian on the side of the 115A, said Coanda nozzle 114A, the flow of pressurized air constituting the faster flow than the rate of the thin strip 1 in the direction along the conveying path is blown from 115A Further, the winding device 200 is further transported to the side of the winding device 200 located on the downstream side along the transport path.

As the above-mentioned Coanda nozzle 111A (same for 112A, 113A, 114A, 115A) applied to the transport device 100, for example, the Coanda nozzle 20 as shown in (i) to (iv) below can be adopted.

(i) As shown in FIG. 5, the coranda nozzle 20 includes a recess 31 having a nozzle body 30 and a cover body 40, and the nozzle body 30 serves as a pressure fluid filling chamber 21. A slit forming portion 32 that continuously forms a pressure fluid blowing slit 22 in the recess 31 is provided by being recessed in the front surface of the nozzle body 30 along the longitudinal direction of the nozzle body 30, and the cover body 40 is bolted. In a state of being fixed to the front surface of the nozzle body 30 by 33, the recess 31 of the nozzle body 30 covered with the cover body 40 becomes the pressure fluid filling chamber 21, and the cover body 40 becomes the nozzle body 30. It is assumed that the pressure fluid outlet slit 22 having a constant slit width w is formed by the gap G formed in the height direction with respect to the slit forming portion 32, and is located on the downstream side of the pressure fluid outlet flow ejected from the outlet slit 22. On the surface of the nozzle body 30 located, the pressure fluid flows as a creeping flow F1 along the surface, and a coranda wall surface 34 exhibiting a coranda effect is formed. Further, preferably, a cover body 40 fixed to the front surface of the nozzle body 30 is placed at an intermediate portion of the blowout slit 22 along the longitudinal direction of the nozzle body 30 in the height direction with respect to the slit forming portion 32 of the nozzle body 30. A support means 35 (rib 35A) is provided, and the height H of the support means 35 (rib 35A) is set to the same value as the slit width w of the blowout slit 22 in each portion of the nozzle body 30 in the longitudinal direction. Therefore, the influence of the surface roughness and waviness of the nozzle body 30 and the cover body 40 due to machining, or the warp of the cover body 40 due to assembly is suppressed, and the slit width w of the blowout slit 22 can be easily set in the longitudinal direction of the nozzle body 30. Can be made similar. As a result, the Coanda nozzle 20 exerts a stable Coanda effect, and the pressure fluid blown out from the blowout slit 22 of the small gap G at high speed is a stable creepage surface composed of a thin and uniform curtain-like laminar flow in the longitudinal direction of the nozzle body 30. The flow can be reliably generated.

(ii) In the Coanda nozzle 20, the Coanda wall surface 34 formed on the nozzle body 30 forms a convex surface that gradually separates from the direction of the outlet axis of the pressure fluid ejected from the outlet slit 22, and has a stable Coanda effect. Can be demonstrated.

(iii) In the Coanda nozzle 20, the slit width w of the blowout slit 22 is preferably 0.1 to 0.2 mm, more preferably 0.15 mm, so that the blowout slit having a small gap G is formed. The slit width w of 22 can be easily and surely made uniform in the longitudinal direction of the nozzle body 30.

(iv) In the Coanda nozzle 20, support means 35 (rib 35A) is provided at an intermediate portion of the blowout slit 22 along the longitudinal direction of the nozzle body 30, and blowout ports 22A are provided on both sides of the support means 35 (rib 35A). When forming, the length (L) of each outlet 22A along the longitudinal direction of the nozzle body 30 is relative to the length (K) 1 of the supporting means 35 (rib 35A) along the longitudinal direction of the nozzle body 30. Is preferably 50 to 80, and more preferably 60 to 70, so that the slit width w of the blowout slit 22 can be easily and surely uniformed in the longitudinal direction of the nozzle body 30.

(v) In the Coanda nozzle 20, an air flow that is continuous with the downstream side of the coastal flow F1 of the pressure fluid along the Coanda wall surface 34 formed on the nozzle body 30 and further flows as the creeping flow F2 along the surface. Has a face. The air blowing surface is formed on the nozzle main body 30 and the air blowing guide 50 (corresponding to the air blowing guides 111, 112, 113, 114, 115 in the transport device 100) connected to the nozzle main body 30. Therefore, the stable coastal flows F1 and F2 of the pressure fluid generated by the Coanda nozzle 20 can be widely extended to the downstream side of the Coanda wall surface 34.

In each Coanda nozzle 111A, 112A, 113A, 114A, 115A to which the Coanda nozzle 20 is applied, the slit length (length along the longitudinal direction of the nozzle body 10) of the blowout slit 22 in the Coanda nozzle 20 is determined. It is preferably 1.1 to 1.5 times the plate width of the thin band 1. If it is less than 1.1 times, the blown air that touches the thin band 1 on both ends of the blowout slit 22 may be disturbed, and if it exceeds 1.5 times, the consumption of the blown air becomes unnecessarily large and energy is consumed. The amount is wasted and is not preferable.

Therefore, according to the transport device 100 of the present embodiment, the following functions and effects are obtained.
(a) in the conveying apparatus 100 of the ribbon 1, Coanda nozzle 111A on both sides, such as by coming flying from suppliers, ribbon 1 coming is fed in the space between the 112A is on both sides of the Coanda nozzle 111A, 112A While being sandwiched between the coastal currents on both sides of the pressure air (one side of the coastal currents F1 and F2 and the other side of the coastal currents F1 and F2) that are blown out from the surface and flow faster than the velocity of the thin band 1 in the direction along the transport path. , It is guided by the transport path and made transportable. At this time, in the Coanda nozzles 111A and 112A, the pressure air blown out from the blowout slit of the small gap at high speed attracts a large amount of ambient air, and the compression required to obtain the same amount of pressure fluid flow. Along with significantly reducing the amount of air, it is possible to generate a thin, uniform and high-speed curtain-like laminar flow.

Therefore, even if the thin band 1 is thin like an amorphous ribbon and is blown in the air at high speed and the position where the thin band 1 is blown is difficult to be constant, the thin band 1 is the Coanda nozzle 111A. , It is sandwiched between high-speed creeping currents on both sides of the pressure air blown out from 112A, and is reliably caught in the space between the Coanda nozzles 111A and 112A, and is stably guided and conveyed to a predetermined transfer path. Become a thing.

Even if the thin band 1 is thin and brittle like an amorphous ribbon, the thin band 1 is blown so as to ride on the creeping currents F1 and F2 of the pressure air, and the Coanda nozzles 111A and 112A and the air blowing guides 111 and 112 are blown. There is no direct collision with the band 1, and there is no risk of damage such as breakage or crushing at the tip of the thin band 1.

(b) A plurality of Coanda nozzles 112A, 113A, 114A by arranging the other Coanda nozzles 113A, 114A, 115A on the downstream side of the lower Coanda nozzle 112A of the two upper and lower Coanda nozzles 111A, 112A. , 115A will be installed adjacent to each other over a long range along the transport path, and the high-speed coastal flows F1 and F2 of the pressure air generated by the Coanda nozzles 112A, 113A, 114A and 115A will be installed over a long range along the transport path. Can be continuous. As a result, the thin band 1 is stably guided and transported over a long range along the transport path.

(c) In the transport device 100 of the thin band 1, the Coanda wall surfaces of the Coanda nozzles 112A, 113A, 114A, 115A form a convex surface gradually separated from the direction of the ejection shaft of the pressure air blown out from the ejection slit. A stable Coanda effect can be exhibited in the Coanda nozzles 112A, 113A, 114A, 115A.

(d) In the transport device 100 of the thin band 1, each of the Coanda nozzles 112A, 113A, 114A, 115A is connected to the nozzle body of the Coanda nozzles 112A, 113A, 114A, 115A. , 115, and the coastal flow F1 of the pressure air blown out from the outlet slits of the Coanda nozzles 112A, 113A, 114A, 115A and along the Coanda wall surface is applied to the air blowing surface of the air blowing guides 112, 113, 114, 115. It becomes a coastal flow F2 along the line and flows further. Therefore, the generation range of the high-speed creeping flow F1 and F2 of the pressure air can be lengthened together with the air blowing guides 112, 113, 114 and 115 in which the Coanda nozzles 112A, 113A, 114A and 115A are connected to the nozzle body. The Coanda nozzles 112A, 113A, 114A, 115A can generate stable high-speed coastal currents F1 and F2 in a constant length range along the transport path.

(Winling device 200) (FIGS. 3 and 4)
As shown in FIGS. 3 and 4, the take-up device 200 winds the thin band 1 conveyed by the transfer device 100 on the take-up core 210. The winding core 210 is supported by a carriage 202 installed on the gantry 201, and the winding work position where the winding of the thin band 1 is started by the movement of the carriage 202 and the wound thin band 1 are set. After that, it is switched to the winding position for continuous winding.

The winding device 200 attaches the winding guide 220 to the downstream side of the air blowing guide 115 connected to the downstream side of the Coanda nozzle 115A described above, which is arranged in the transport path of the thin band 1 in the transport device 100, and winds the winding. A winding air nozzle 221A is arranged at the upstream end of the guide 220. The winding air nozzle 221A of the winding guide 220 skips the Coanda nozzle 115A of the transport device 100 and the thin band 1 that has been blown by the air blowing guide 115, and stands by at a standby position on the downstream side of the winding guide 220. The air is blown into the space between the winding core 210 and the wrapper device 230 arranged around the winding core 210.

The air blow guide 115, the winding guide 220, and the winding air nozzle 221A descend from the transport path of the thin band 1 by the cylinder device 115S after the thin band 1 has been wound around the winding core 210 as described later. , The winding thick space of the thin band 1 can be secured around the winding core 210.

The take-up device 200 supports the wrapper device 230 on the support base 203 mounted on the carriage 202. The wrapper device 230 has a lower wrapper guide 231 and an upper wrapper guide 232. Each wrapper guide 231R and 232 has a C-shaped arcuate cylinder 231R and 232R fixed to the C-shaped inner peripheral surfaces of the C-shaped frames 231F and 232F and their C-shaped frames 231F and 232F. The C-shaped frame 231F of each wrapper guide 231 is fixedly attached to the support base 203, and one end of the C-shaped frame 232F of the upper wrapper guide 232 is the C-shaped frame 231F of the lower wrapper guide 231. A pin is connected to the upper end portion so as to be openable and closable via a connecting pin 233. That is, the wrapper device 230 forms a C-shape along the periphery of the winding core 210 by the C-shaped arcuate cylinders 231R and 232R of the wrapper guides 231 and 232, and wraps the outer peripheral surface of the winding core 210. A thin band winding space (a space for forming the swirling flow path 230F of pressure air) is formed between the surface and the surface. That is, each wrapper guide 231 and 232 wraps the outer peripheral surface of the take-up core 210 and forms a swirling flow path 230F of pressure air with the outer peripheral surface.

In each wrapper guide 231 and 232, the wrapper device 230 has a plurality of winding fluid nozzles 234A to as shown in FIG. 6 at each of a plurality of positions (5 positions in the present embodiment) facing the outer peripheral surface of the winding core 210. 234E is placed. That is, the wrapper device 230 has C-shaped frames 231F and 232F for each air pipe 235 extending along the axial direction on the outer peripheral side of each C-shaped arcuate cylinder 231R and 232R in each wrapper guide 231 and 232. The air outlets 236 of the wound fluid nozzles 234A to 234E, which are supported by the air pipes 235 and connected to the air pipes 235, face the swirling flow path 230F via the outlet windows 237 cut out in the C-shaped arcuate cylinders 231R and 232R. No. As a result, the pressure air blown from each of the winding fluid nozzles 234A to 234E toward the swirling flow path 230F generates a swirling flow toward the downstream side along the periphery of the winding core 210. Each winding air nozzle 234A to 234E of the wrapper device 230 blows air at a wind speed faster than the line speed (speed of thin band 1), and the winding core 210 rotates at a peripheral speed faster than the line speed (speed of thin band 1). The thin band 1 that has been blown into the space between the winding core 210 and the wrapper device 230 by the winding air nozzle 221A of the winding guide 220 described above is sent along the circumference of the winding core 210. Is blown like.

The wrapper device 230 is switched between a closed position in which at least a part thereof forms a swirling flow path 230F of pressure air and an open position in which the swirling flow path 230F is opened with the outer peripheral surface of the take-up core 210. In the state where it is settable and switched to the open position, it is moved from the winding work position close to the winding core 210 to the side separated from the standby position, and the winding space of the thin band 1 is wound around the winding core 210. Can be formed. In the present embodiment, the upper wrapper guide 232 of the wrapper device 230 is opened and closed with respect to the lower wrapper guide 231 by the cylinder device 232S pivotally supported by the support base 203, and the thin band 1 is wound around the winding core 210. After the attachment is completed, it is swung upward to be separated from the take-up core 210.

In the take-up core 200, when the tip of the thin band 1 goes around the take-up core 210 once, the tip of the thin band 1 is sent later to the middle part of the thin band 1 and the take-up core 210. It enters between and is gripped and winds around the take-up core 210.

The thin band 1 is tensioned by being wound around the take-up core 210, and is stretched by this to come into contact with the guide rolls 117 and 118 of the transfer device 100 which are rotated at the line speed from the beginning and stably convey the band 1. It is stably wound around the winding core 210. In FIG. 1, P indicates a stable transport line of the thin band 1 wound from the cast drum 11 through the guide rolls 117 and 118 to the winding core 210.

By detecting the tension of the thin band 1 or the torque of the winding core 210, it is detected that the thin band 1 is wound around the winding core 210, and at the same time, the winding core 210 is at the speed of the thin band 1 (line). It is rotated in synchronization with the speed).

In this way, after the thin band 1 is wound around the take-up core 210, the upper wrapper guide 232 of the wrapper device 230 is swung upward by the cylinder device 232S mounted on the support base 203 to form the take-up core 210. Along with moving away from the side, the entire wrapper device 230 is moved from the winding work position to the standby position by the cylinder device 230S interposed between the carriage 202 and the support base 203, and the winding guide 220 is also lowered. A thick space for the thin band 1 is secured around the take-up core 210.

The entire winding device 200 including the carriage 202 equipped with the winding core 210 and the wrapper device 230 moves from the winding work position to the winding position, and continues winding the thin band 1.

Therefore, according to the winding device 200 of the present embodiment, the following effects are obtained.
(e) In the transport winding device 10 of the thin band 1, a plurality of winding fluid nozzles 234A to 234E are arranged at a plurality of positions along the periphery of the winding core 210. Then, generates towards the winding-fluid nozzle 234A to the swirling flow of 234E is faster pressure air than the speed of the ribbon 1 in the winding direction of the ribbon 1 along the periphery of the winding core 210, the winding core 210 by rotating at a faster peripheral speed than the speed of the thin strip 1 can stably fed along the ribbon 1 around the winding core 210.

The tip of the thin band 1 that is fed along the circumference of the winding core 210 and goes around the winding core 210 once is the intermediate portion of the subsequent thin band 1 and the winding core 210. It is gripped in between, and can be reliably wound around the winding core 210.

(f) In the transport winding device 10 of the thin band 1, the wrapper device 230 arranged around the winding core 210 wraps the outer peripheral surface of the winding core 210 and swirls pressure air between the outer peripheral surface and the outer peripheral surface. It has arc-shaped wrapper guides 231 and 232 forming the flow path 230F, and winding fluid nozzles 234A to 234E are installed at each of a plurality of positions facing the outer peripheral surface of the winding core 210 in the wrapper guides 231 and 232. As a result, the pressure air blown out by the winding fluid nozzles 234A to 234E is blown out to the swirling flow path 230F formed by the wrapper guides 231 and 232 of the wrapper device 230 with the outer peripheral surface of the winding core 210, and is wound. The swirling flow of (e) described above can be stably generated around the core 210, and the thin band 1 can be stably fed along the circumference of the winding core 210.

(g) The wrapper guides 231 and 232 of the wrapper device 230 of the above-mentioned (f) have a closed position forming a swirling flow path 230F of pressure air with the outer peripheral surface of the take-up core 210, and the swirling flow path 230F. It is possible to switch between the open position and the open position, and in the state of being switched to the open position, it is moved from the winding work position close to the winding core 210 to the side separated from the standby position and around the winding core 210. to form a winding thickening space of the thin strip 1, to allow the winding continues ribbons 1 into the take-up core 210.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like within a range not deviating from the gist of the present invention. Included in the present invention. For example, the transport take-up device 10 of the ribbon 1 of the present invention (conveying apparatus 100 and the winding apparatus 200) may be applied to other ribbon 1 except the amorphous ribbon.

In the present embodiment, the thin band peeling air nozzle 12 is arranged on the downstream side of the guide roll 117 along the rotation direction N of the cast drum 11 in accordance with the normal rotation of the cast drum 11 as shown in FIG. Then, the guide roll 117 was arranged on the upstream side (upper side with respect to the thin band peeling air nozzle 12 in FIG. 1) of the thin band peeling air nozzle 12 along the rotation direction of the cast drum 11.

However, when the cast drum 11 reverses in the counterclockwise direction T as shown in FIG. 7, the thin band 1 arranged on the downstream side of the thin band 1 flowing along the rotation direction T of the cast drum 11 The guide roll 117 is arranged on the upstream side of the band peeling air nozzle 12 (lower side with respect to the thin band peeling air nozzle 12 in FIG. 7). Further, in the transport device 100 in this case, the Coanda nozzle 110A is additionally arranged near the thin band peeling air nozzle 12 of the Coanda nozzle 111A. The air blown out from the Coanda nozzle 110A flows as a creeping flow along the air blowing guide 110G, and causes an action of drawing in the surrounding air on the front side thereof. As a result, the flying tip of the thin band 1 peeled from the cast drum 11 by the thin band peeling air nozzle 12 passes between the Coanda nozzle 110A and the guide roll 117, and is between the upper and lower Coanda nozzles 111A and 112A, and above and below. It is surely caught in the space between the air blowing guides 111 and 112, and is blown to the side of the Coanda nozzle 113A and the air blowing guide 113 (tail clipper 113T) further downstream.

According to the present invention, in the conveyance apparatus of the ribbon using Coanda nozzle, it is possible to convey the ribbon stably induced to the conveying path.

Further, according to the present invention, in the transport take-up device of the ribbon winding ribbons conveyed by the conveyance device using a Coanda nozzle, it can be taken stably wound ribbons in winding the core.

1 Thin band 10 Thin band transport winding device 20 Coanda nozzle 22 Blow-out slit 30 Nozzle body 34 Coanda wall surface 100 Transport device 111, 112, 113, 114, 115 Air blowing guide 111A, 112A, 113A, 114A, 115A Coandan nozzle 200 Winding device 210 Winding core 230 Wrapper device 230F Swirling flow path 231, 232 Wrapper guides 234A to 234E Winding fluid nozzle

Claims (9)

In a thin plate transport device that guides and conveys a thin plate by the creeping flow of the pressure fluid that is blown out from the blowout slit of the Coanda nozzle along the Coanda wall surface due to the Coanda effect.
It has a pair of Coanda nozzles on both sides that are arranged at two positions on both sides of the transport path on the inlet side of the transport path of the thin plate in which the thin plate is fed from the supply source to the supply destination.
The thin plate fed into the space between the Coanda nozzles on both sides is sandwiched between the creeping flow of the pressure fluid that is blown out from the Coanda nozzles on both sides and flows faster than the speed of the thin plate in the direction along the transport path. A thin plate transport device characterized in that it is guided by a transport path to enable transport. When the Coanda nozzles on both sides are arranged at two upper and lower positions along the vertical direction to form a pair of upper and lower Coanda nozzles, the other Coanda nozzles arranged on the downstream side along the transport path adjacent to the lower Coanda nozzle are further added. The thin plate having and being conveyed to the side of the Coanda nozzle arranged on the downstream side is blown out from the Coanda nozzle and flows in a direction along the conveying path faster than the speed of the thin plate. The thin plate transport device according to claim 1, wherein the thin plate can be further transported to the downstream side along the transport path. The thin plate transporting device according to claim 1 or 2, wherein the Coanda wall surface of the Coanda nozzle has a convex surface that gradually separates from the direction of the ejection shaft of the pressure fluid ejected from the ejection slit. Each of the Coanda nozzles comprises a ventilation guide connected to the nozzle body of the Coanda nozzle.
The thin plate according to any one of claims 1 to 3, wherein the creeping flow of the pressure fluid blown out from the blowout slit of each Coanda nozzle and along the Coanda wall surface becomes a creeping flow along the wind blowing surface of the air blowing guide and further flows. Conveyor device. The thin plate conveying device according to any one of claims 1 to 4, wherein the thin plate is an amorphous ribbon. A transport device that guides and conveys a thin plate by the creeping flow of the pressure fluid that is blown out from the blowout slit of the Coanda nozzle along the Coanda wall surface due to the Coanda effect.
In a thin plate transfer winding device including a winding device for winding a thin plate conveyed by a transfer device on a winding core.
The take-up device is
Multiple winding fluid nozzles are placed at each of the multiple positions along the circumference of the winding core.
The winding fluid nozzle generates a swirling flow of pressure fluid faster than the speed of the thin plate in the winding direction of the thin plate along the circumference of the winding core, and rotates the winding core at a peripheral speed faster than the speed of the thin plate. Then, the tip of the thin plate that is fed along the circumference of the take-up core and goes around the take-up core once enters between the intermediate part of the following thin plate and the take-up core and is gripped to take up the take-up. A thin sheet transport winding device that can be wound around the core. The take-up device has a wrapper device that is placed around the take-up core.
The wrapper device has an arc-shaped wrapper guide that wraps the outer peripheral surface of the winding core and forms a swirling flow path of the pressure fluid with the outer peripheral surface, and the wrapper guide faces the outer peripheral surface of the winding core. The thin plate transport winding device according to claim 6, wherein a winding fluid nozzle is installed at each position. The wrapper guide of the wrapper device can be switched between a closed position for forming a swirling flow path of the pressure fluid and an open position for opening the swirling flow path with the outer peripheral surface of the take-up core, and is opened. The seventh aspect of claim 7 is that the winding work position close to the winding core is moved to the side separated from the standby position in a state of being switched to the position so that a thin plate winding space can be formed around the winding core. Thin plate transport winding device. The thin plate transport winding device according to any one of claims 6 to 8, wherein the thin plate is an amorphous ribbon.

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