JPH02504020A - Method and apparatus for stacking card slivers for textiles in cans - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] A method and apparatus for stacking card slivers for textiles in cans. In the step, the card slivers are stacked by a stream of compressed or vacuum air. The card sliver is drawn into the pipe and then continuously in the stacking stage. Card sliver for textiles is transported into a can. Regarding how to layer.

The present invention also provides a rotary plate and an associated stacking tube, and an 80 end of the stacking tube. A pair of squeezing rollers arranged in the section and a compressed gas for passing the card sliver. The present invention relates to an apparatus for carrying out the above method, comprising an injector.

After forming the fiber fleece separated from the card into a card sliver, The fibers are usually stacked in so-called spinning cans prior to the next step. Ru. A device of this type is known from US Pat. No. 4.3]8.206. this The rotating plate of the known device is covered by a stationary hood, and the space under the hood is used as a vacuum conductor. connected to the tube. The exit end of the stacking tube passes through the plane of the rotating plate and the spinning case is inserted. A pair of squeezing rollers is arranged on the bottom side of the rotating plate. stacking The outlet end of the service pipe is located relatively close to the squeezing roller pair and is It is equipped with a ratio port that opens into a space defined between the rotary plate and the rotating plate. This surrounding The vacuum created by the vacuum conduit in the space where the card slivers are stacked It has the effect of drawing the liquid through the squeezing tube to the position of the squeezing roller.

As a variant, it is also possible to provide an injector for compressed gas.

When the card sliver is passed through the stacking tube, the vacuum flow temporarily removes dust and short fibers. It has the effect of eliminating However, the exit port becomes clogged relatively quickly with short fibers. That's what happens. Furthermore, this evacuation effect can only be maintained substantially during the through-phase. Can not. This is because, otherwise, a part of the card sliver would get stuck between the squeezing rollers. This is because there is a risk of being pulled sideways through the gap.

Therefore, an object of the present invention is to facilitate the card sliver threading operation and to facilitate the threading operation. During the stacking stage, the upper The objective is to improve methods of the type described and equipment for carrying out such methods. Ru.

This purpose is achieved by the invention, in which the card sliver is placed in the stacking tube during the stacking stage. This is achieved by generating a flow of vacuum air in a direction opposite to the supply direction.

From the start of operation, this vacuum air flow is mostly used for ventilation rather than for supply. It is used only for storage and evacuation of dust and short fibers. In this method, the card data The air flow used to pass the fibers through the stacking tubes removes short fibers and dust particles. The child will not be disturbed. Vacuum air flow directed outwards in the gap between the squeezing rollers The vacuum air flow can also be maintained at full strength during the stacking stage as no Ru.

In terms of a device, the above-mentioned object is achieved by the present invention being connected to a vacuum source. and a drain located at a spaced position upstream of the outlet end of the stacking tube. This is achieved by providing a permanent guard. Thereby, in an easy way, stacking Generates a vacuum air flow in the opposite direction to the card sliver supply direction within the service pipe. be able to.

According to a preferred embodiment, immediately upstream of the squeezing roller pair and at the exit of the stacking tube. A first compressed gas injector is arranged downstream of the end, and a stacking injector is arranged downstream of the end. A second compressed gas injector is located at a remote location upstream of the outlet end of the tube. and a gap is formed between the outlet end of the stacking tube and the inlet of the first compressed gas injector. is formed. This allows the card sliver to be removed during the card sliver threading stage. During the stacking phase, the card sliver It is further possible to achieve an even stronger conveying air flow for passing This will give you an advantage.

This gap has two functions. On the one hand, the gap is the transport space from the stacking arm. card to prevent air from entering the inlet end of the compressed gas injector. During the threading phase of the sliver, ensure pressure equilibrium. As a result, the first compressed gas The injector can create a large pressure difference, which is caused by the two throttle rods. This has the effect of ensuring that the card sliver can be introduced into the gap between the rollers.

On the other hand, during the stacking phase, the gaps provide air space for generating a vacuum air flow. Air can flow into the stacking tube.

The compressed air supply of the first compressed gas injector located at the outlet end of the stacking tube Advantageously, the supply conduit is routed through the first rotary joint. In this method, the product The stacking pipes, including the compressed air supply conduit of the first compressed gas injector, It can be rotated around a rotational joint, and it can be rotated around a rotational joint as well. No externally connected compressed air supply conduit components are required.

In a structurally simple solution, the rotating joints can be rotated relative to each other and Two enclosures enclosing a compressed air space sealed both to the outside and to the stacking tubes. A rotary member is provided, and both rotary members connect each compressed air supply conduit to a compressed air space. Each port opens into a compressed air space for connection to a compressed air space.

According to a preferred embodiment of the invention, the rotating members of the rotary joint are arranged substantially coaxially. formed as a child sleeve connected to each tube and Two axially spaced sealed radial bearings allow rotation relative to each other. between the radial bearing and the sleeve; A space is defined and a connection port in the outer sleeve is formed as a radial bore. In contrast, the connection port in the inner sleeve is formed as an approximately axial bore. There is. This configuration allows the compressed air supply conduit to be connected in a particularly simple manner and with no pressure losses. It can be passed through a rotating joint without causing

The card sliver supply pipe is connected to the first rotary joint with an approximately S-shaped connecting pipe. The connecting pipe is rotatably connected to the end of the supply pipe by the second rotary joint, and the connecting pipe is rotatably connected to the end of the supply pipe by the second rotary joint. In systems that are rotatably connected by hand to stacked pipes, the compressed air conduit is Advantageously, it is threaded through a second rotary joint. In this type of device, the rotating plate is , an axial line passing through the center of the rotary plate to stack the card sliver in the can. In addition to rotating around It is attached to a cover that can rotate around itself. As a variant, Kens may be rotatably mounted about the axis of the latter. This allows you to When the levers are stacked, they form a cycloidal stacking pattern. compressed air Due to the fact that the air conduit is passed through the second rotary clutch, the first compressed air The main compressed air supply port for the air injector is placed at a fixed position relative to the supply pipe. In any case, the downstream part of the compressed air supply conduit may be and downstream tube sections, such as stacked-layer tubes, can be rotated in unison.

In a particularly advantageous embodiment, the vacuum connection port is located at the outlet end of the layer tube of the second rotary joint. , but can still be provided at the non-rotating end of the supply pipe. Ru. As a result of this configuration, the vacuum air flow is directed to the card slide upstream of the second rotary joint. It always acts in the direction of bar supply, and the exhaust flow is opposite to the direction of card sliver supply. between this second rotary joint and the outlet end of the stacked pipe. .

According to a preferred embodiment, the port for vacuum air is connected to the second supply pipe. It is formed in the member of the rotary joint. This extends into the rotating joint and rotates relative to each other. Pipe sections that should be able to be rotated must always be arranged with a small space between them. This is advantageous because it does not have to occur. This allows you to match the desired vacuum air flow. All that is required is to size the gap and form it.

In a particularly simple configuration of the connection port for vacuum air, the connection port is connected to a second rotary joint. The supply pipe and the vacuum conduit are connected to a flange member fixed to the flange member.

Particularly uniform discharge of short fibers and dust particles is achieved by connecting the end of the supply pipe to the rotary joint and A gap is formed between the rotary joint itself, and the gap is sealed from the outside by a flange. This can be achieved by being connected to a vacuum conduit. this is, This gap allows short fibers and dust particles to escape around the card sliver. It has an annular gap shape that allows the card slot to be inserted into the stacked pipes and connecting pipes. This is because an annular flow pattern surrounding the fiber can be created.

Embodiments of the present invention will now be described in more detail by way of example with reference to the accompanying drawings. .

FIG. 1 shows a cut away side view of a device according to the invention.

FIG. 2 is a plan view showing the card sliver stacking pattern of the device shown in FIG. 1. It is.

FIG. 3 shows an enlarged detailed view of the portion indicated by ■ in FIG. 1.

FIG. 4 shows a partial cross-sectional view of the device along line IV-IV of FIG.

FIG. 5 is a partial cross-sectional view of the portion indicated by ■ in FIG. 1.

FIG. 1 shows the present invention for stacking card slivers for textiles in a can 2. 1 shows a partially sectional and partially cut away side view of a device 1 according to the invention; FIG.

Figure 1 shows only the upper left part of can 2, and the lower and main parts of can 2 are as follows: Cropped for clarity.

A rotary plate 3 is arranged above the can 2, and the rotary plate 3 is connected to the associated laminated pipe. It has 4. The stacked pipe 4 is rotatable and its upper end is held in a first rotary joint 5. and the lower end, i.e. the outlet end 7, faces the rotating disk 6; The rotating disk 6 is rotatably attached to the outer ring 9 and has a larger rotational speed. It is attached to disk 8.

As is clear from the schematic representation in FIG. Both rotating disks 8 are mounted rotatably about their respective centers.

The card slivers emerging from the exit end 7 are stacked in a spiral pattern that progresses in the circumferential direction. I can sleep.

A pair of squeezing rollers lO is provided adjacent to the outlet end 7 of the stacked tube 4 to From there, the sliver passes through a small rotating disc 6 and a pair of squeezing rollers 10. It enters the can 2 by means of a discharge tube 11 having the same shape as the contour.

Figure 1 shows the stacked tube 4 in two positions (indicated by solid and dashed lines, respectively). .

From the left hand position of the stacked tube 4 in FIG. It is clear that the drive shaft 12 is mounted and rotated by the drive shaft 12. Squeezing roller 10 and the drive mechanism of the rotating disk 6.8 is of conventional type and is therefore not shown. not present.

Above the first rotary joint 5 there is a A substantially S-shaped connecting pipe 13 is arranged. The upper end of the connecting pipe 13 is connected to a second rotary joint. It is connected to a supply pipe 15 via 14.

The supply pipe 15 extends toward the device 1 from, for example, a card (not shown).

During operation of the device 1, as is generally known, the S-type connecting pipe 13 connects to the axis of the can 2. While rotating about a line 16, the stacked tube 4 is rotated by a small rotating disk 6 rotates about the axis 17 of , and at the same time rotates about the axis 16 . two The axes of rotary joints 5 and 14 coincide with axes 16 and 17, respectively.

As shown in Figure 1, a card sliver is introduced into the gap between the two squeezing rollers 10. In order to It is located between IO.

The inside of the first compressed gas injector 18 has a conical shape, and terminating in an elongated gap 37 extending across the gap between the two squeeze rollers 10 . Compressed air is supplied inside through an annular nozzle gap (compressed gas injector The same applies to the controller 20). Compressed gas injector 18 and outlet end of stacked tube 4 A gap 19 for air inlet or outlet is formed between the part 7 and the air outlet.

A second compressed gas is provided at a position spaced from the outlet end 7 of the stacked tube 4 in the supply direction T. An injector 20 for use is arranged. More precisely, the second compressed gas indicator The vector 20 is arranged on the upstream side of the second rotating disk 14 in the supply pipe 15. . The compressed air injector 20 is formed as an annular jet nozzle. , connected to a common compressed air source 21 together with the first compressed gas injector 18. ing. First and second supply conduits 22 and 23 extend from the compressed air source 21 to It extends to the first and second compressed gas injectors 20, respectively. for second supply A second compressed gas conduit 23 is attached at a fixed position on the stationary supply pipe I5. The first supply conduit is directly connected to the first injector 20, whereas the first On the way to the first compressed gas injector 18, the first and second rotary joints 14 and and 5 respectively.

As shown more clearly in FIGS. 3 and 5, the two rotary joints 5 and I4 are nearly identical. two rotating members 2 of one configuration, each of which is capable of rotating with respect to the other; 4 and 25. The two rotating members 24 and 25 have compressed air between them. Each rotating member 24 , 25 opens into the compressed air space 26 . connection ports 27 and 28, respectively. Two rotating members 24 and 2 5 is shaped as a substantially coaxially nested sleeve connected to the associated tube. has been completed. The outer sleeve 24 has two axially spaced ball bearings 29 and 30, it is rotatably attached to the inner sleeve 25. Especially in Figure 5. As shown in FIG. are sealed with an annular gasket 3 provided on the side of the a ball bearing 29 cooperating with the inner and outer sleeves 24 and 25 and the gasket 31; and 30 define a compressed air space 26. Contact of outer sleeve 24 The connecting port 27 is formed as a radial bore, whereas the inner sleeve 25 The connecting port 28 is designed as an approximately axial bore and can also be seen from the drawings. , it is clear that the connection of the first supply pipe with the axial bore 28 is also oriented radially. It is clear.

Referring again to FIG. 1, exhaust port 32 is located adjacent second rotary joint 14. It is shown that it is provided in More precisely, the exhaust port 32 formed directly on the outer sleeve 24 of the rotary joint 14, which sleeve is connected to the supply pipe 15. is fixedly connected to.

The configuration of exhaust port 32 is shown in detail in FIGS. 3 and 4. In these figures has a flap for connecting both the supply pipe 15 and the vacuum pipe 34 to the second rotary joint 14. It is shown that a lunge 33 is provided. Supply opening into rotary joint 14 Between the end of the tube 15 and the rotary joint itself there is a flange 33 sealed from the outside. A gap 35 is formed that communicates with the vacuum tube 34. For this reason, the gap 35 extends to a position below the vacuum tube 34. The gap 35 is located inside the S-shaped connecting pipe 13. The inner sleeve 25 of the rotary joint I4 provides a space for compressed air. Sealed against 26.

As shown in FIG. 1, the vacuum tube 34 is placed behind the supply tube 15 and slightly above it. It extends to

Next, the operation of the apparatus of the present invention will be explained in detail.

First, in order to pass the card sliver through the gap between the device 1 and the squeezing roller pair 10, pressure is applied. The compressed air is supplied to the compressed gas injector 18 through supply conduits 22 and 23, respectively. and 20, the compressed air source 21 is activated. At the same time, two rotating discs 6 and 8 about their respective axes, thereby The stacked layer tube 4 and the connecting tube 13 are similarly rotated about the axis. to this rotation In order to supply compressed air to the first compressed gas injector 18 regardless of the One supply conduit 22 passes through each rotary joint 14 and 5. Each connection port 27 and and 28 are free to rotate relative to each other, thereby allowing supply conduit 22 is not twisted.

By supplying compressed air to the compressed gas injectors 18 and 20, the supply pipe 15, The flow of compressed air to be generated in the connecting pipe 13 and the stacked pipe 4 is induced. . A flow of vacuum air directed in the supply direction T is directed above the second compressed gas injector 20. Formed on the downstream side. This vacuum air flow moves the tip of the card sliver to the second It has the effect of drawing the compressed gas into the injector 20, and as a result, the card sliver The tip of - is dragged by the flow of compressed air and is connected to the second rotary joint 14 and the connecting pipe 13. , the first rotary joint 5 and the stacked tube 4. Pressure inside stacked pipe 4 The compressed air can escape through the gap 19, thereby allowing the second compressed gas Rising at the inlet of the first compressed gas injector 18 reducing the effectiveness of the injector Prevent pressure from forming. The first compressed gas injector 18 is a card sliver - The two aperture rollers IO rotate in the direction shown in the diagram with broken lines. The leading end of the card sliver is conveyed to the gap between the rollers 10. Cardos From there, the liver passes through the discharge pipe 11 of the smaller rotating disk 6 and is then delivered to the can 2. transported inside.

This is the end of the through stage. The two compressed gas injectors 18 and 20 are Although shut down, the vacuum tube 34 remains connected to the vacuum source 36. vacuum air The flow is weaker than the compressed air flow, so that during the threading phase the latter overcomes the former. win. As a result, a flow of vacuum air is generated within the vacuum tube 34, and this flow of vacuum air occurs. This is carried out by the exhaust port 32 not only in the connecting pipe 13 and the stacked pipe 4 but also in the supply pipe. It also extends into the feed pipe 15.

The direction of vacuum air flow is indicated by arrow S. As is clear from Figure 1, the exhaust port On the upstream side of the outlet 32, the vacuum flow direction S coincides with the supply direction T, whereas the exhaust On the downstream side of the air port 32, the vacuum flow direction S is opposite the supply direction T. . This means that in the stacking phase that starts next, the The card sliver being sent is carried by the air flow in the opposite direction and passes through the connecting pipe 13 and This means proceeding through the stacked tube 4. This opposite air flow is at the exit end. The outlet end at the gap 19 between the part 7 and the first compressed gas injector 18 and terminates at the exhaust port 32.

The opposite air flow is at the outlet end 7, the squeezing roller 10 and the discharge tube 11. This has the effect of substantially preventing the leakage of short fibers and dust particles. The result of this configuration , the card sliver is separated from short fibers and dust particles when stacked in can 2. At the same time, the leakage of short fibers and dust particles into the environment can be avoided. It will be done. For this purpose, vacuum equipment is often equipped with a separator in the form of a filter. stomach.

The card slivers are stacked in can 2 in the pattern shown in FIG.

The discharge tube 11 is preferably made of plastic material and is connected to the squeezing roller pair 10 and the discharge tube. The contours of the pair of squeezing rollers 10 are carefully shaped to achieve an effective seal between the tubes 11. placed close together.

FIG.3 FIG.5 international search report international search report EP 8800622 SA 230BO

Claims (12)

[Claims] 1. During the threading stage, the card sliver is rotated by a stream of compressed or vacuum air. The card sliver is subsequently drawn into a possible stacking tube during the stacking phase. A card sliver for textiles is continuously conveyed into the can through the stacking tube. - in the method of stacking them in a can, During the stacking step, the card sliver is fed into the stacking tube (4). A method characterized by creating a flow (S) of vacuum air in the opposite direction to the direction (T). 2. Rotary plate (3) and associated stacking tube (4); and said stacking tube (4). a squeeze roller pair (10) arranged at the outlet end (7) of the card sliver; and an injector (18) for compressed gas for passing through the compressed gas. In an apparatus for carrying out the method described, configured to be connected to a vacuum source (36) and in the supply direction (T) an exhaust gas disposed at a separate position upstream of said outlet end (7) of the stacking pipe (4); A device characterized in that it comprises a port (32). 3. Immediately upstream of the squeezing roller pair (10) and of the stacking tube (4) A first compressed gas injector (18) is arranged downstream of the outlet end (7), upstream of the outlet end (7) of the stacking tube (4) in the supply direction (T); A second compressed gas injector (20) is arranged at a spaced apart position, and the outlet end (7) of the utility pipe (4) and the first compressed gas injector (18); Claim 1 characterized in that a gap (19) is formed between the inlet of the The device according to item 2. 4. The stacking pipe (4) is connected to the supply pipe (15) via a first rotary joint (5). In the device according to any one of claims 2 and 3, wherein The second compressed gas injector (20) connects the supply pipe (15) with a supply method. It is characterized in that it is arranged upstream of the first rotary joint (5) in the direction (T). A device used as a sign. 5. the first compressed air located at the outlet end (7) of the stacking tube (4); The compressed air supply conduit (22) of the body injector (18) is connected to the first rotary joint. (5) Any one of claims 2 to 4, characterized in that The device described in Crab. 6. The rotary joints (5, 14) are configured to rotate relative to each other and and a compressed air space (26) hermetically closed to the stacking tube (4). ), each rotating member (24, 25 ) is for the compressed air supply conduit (22) opening into the compressed air space (26). Claims 2 to 3, characterized in that the device is provided with connection ports (27, 28). The device according to any one of items 5 to 6. 7. The rotating members (24, 25) of the rotating joint (5, 14) are aligned substantially coaxially. and nested inside each other and associated one of said tubes (4 and 4, respectively). 13 and 13, 15), the sleeve being connected to the shaft mutually by two linearly spaced sealed radial bearings (29, 30). The radial bearing (29, 30) and the three The compressed air space (26) is defined between the outer space and the outer space (24, 25). Said connecting port (27) of the rib (24) is configured as a radial bore. In contrast, the connection port (28) of the inner sleeve (25) is substantially axially Claims 2 to 6, characterized in that the bore is formed as a bore. The device described in any of the above. 8. A substantially S-shaped connecting pipe ( 13) is arranged, and the connecting pipe (13) connects the supply pipe (15) with a second rotary joint. and connected to the stacking tube (4) by the first rotary joint (5). The apparatus according to any one of claims 2 to 7, wherein the pressure is A compressed air supply conduit (22) likewise runs through said second rotary joint (14). A device characterized by: 9. The exhaust port (32) is arranged adjacent to the second rotary joint (14). According to any one of claims 2 to 8, equipment. 10. The exhaust port (32) connects to the second exhaust port (32) connected to the supply pipe (15). Claims characterized in that it is formed in the part (33) of the rotary joint (14). The device according to any one of items 2 to 9. 11. The exhaust port (32) is fixed to the second rotary joint (14), and A supply pipe (15) and a vacuum conduit (34) are formed on the flange (33) connected to each other. The method according to any one of claims 2 to 10, characterized in that: Device. 12. The end of the supply pipe (15) opening into the rotary joint (14) and the second A gap (35) is formed between the rotating joint (14), and the gap (35) It is sealed from the outside by a flange (33) and is connected to the vacuum conduit (34). According to any one of claims 2 to 11, equipment.