JPS6189330A - Web-collecting apparatus for carding engine - Google Patents

Abstract

PURPOSE:To enable the regular collection of webs into a silver at a high speed, by attaching a web-collecting guide near the outlet-side of a delivery roller, and placing a specific silver guide between the outlet of the collecting guide and a trumpet guide. CONSTITUTION:A web-collecting guide 9 is placed near the outlet-side of the delivery rollers 3, 4, and a silver-guide 28 composed of an opening 50 connected to the air and a guiding surface 51 to collect and guide the silver pulled out of the opening 50 is placed between the outlet of the collecting guide 9 and the inlet of a trumpet guide 7. The air squeezed out of the silver at the inlet of the trumpet guide can be decreased by the use of this apparatus.

Description

[Detailed Description of the Invention] Industrial Application Field This invention collects a wide thin web that is stripped from a carding machine and is sent out from a pair of upper and lower delivery rollers, and guides it to a trumpet guide. The present invention relates to a web converging device for a carding machine that forms sliver.

BACKGROUND OF THE INVENTION Conventionally, in a carding machine, a wide, thin web stripped from a dowel by a stripping roller or the like is then fed to a pair of upper and lower delivery rollers, and the wide, thin web sent out from the delivery rollers is The sliver is formed by passing it through a focusing trumper 1, a guide, and a calender roller installed downstream of the trumpet roller. They are arranged at relatively long intervals, and the wide thin web fed out from the feeding roller is conveyed over a relatively long section with only a slight frictional force due to the entanglement between the fibers and is bundled.

For this reason, when the speed of the web sent out from this delivery roller reaches a high speed exceeding 100 meters per minute, the wide and thin web sent out will be affected by the frictional force with the delivery roller, the influence of the surrounding air flow, and its own weight. A waving phenomenon or a drooping phenomenon appears on both sides of the web. As a result, thickness unevenness occurs in the web being bundled, the two ends of the web are disturbed, the quality of the spun sliver is greatly reduced, and eventually the web breaks and spinning becomes impossible.

This phenomenon is noticeable in the case of cotton fibers, which have a short fiber length and a low degree of entanglement between the fibers, and in the case of such short fibers, wide thin webs are produced at high speeds exceeding 100 meters per minute. It could not be focused and formed into a sliver.

Therefore, as previously shown in Japanese Patent Application Laid-open No. 53-139830, a web guide plate having a concave guide surface, such as an arcuate, flat or prismatic guide surface, is provided in front of the feed roller. The wide, thin web sent out from the feed roller hits the concave guide surface of a web guide plate disposed in front of it and changes its direction at right angles, and the web that has changed its direction hits the concave guide surface of the web guide plate. It has been proposed that the trumpet guide be pulled out along the inner part toward the exit side and introduced directly into the trumpet guide.

Problems to be Solved by the Invention In the above-mentioned conventional device, the web is focused and guided to the trumpet guide in the form of a sliver, so it is possible to prevent the web from waving, etc. However, the sliver pulled out from the outlet of the web guide plate Since the sliver is directly introduced into the rear trumpet guide, the sliver that is drawn out from the outlet of the web guide plate and swells with air before reaching the trumpet guide is greatly compressed at the inlet of the trumpet guide and becomes a sliver. There was a problem in that a large amount of the air inside was pushed out, and this air flowed back from the trumpet guide, obstructing the smooth introduction of the sliver into the trumpet guide. In addition, the backflow of air from the trumpet guide becomes more intense as the sliver spinning speed increases, giving a force in the backflow direction to the sliver introduced into the trumpet guide, and increasing the tension of the sliver between the web guide plate and the trumpet guide. As a result, the tension of the sliver drawn out from the web guide plate is not sufficiently transmitted to the web converging within the web guide plate, resulting in the problem that the web stays within the web guide plate and eventually breaks the sliver. Ta. In order to reduce the backflow of air as mentioned above, it has been considered to move the guide closer to the outlet of the web guide plate, but as is well known, there is a large space in front of the feed roller to guide the web. Therefore, a space for moving the web guide plate is required between the web guide plate and the trumpet guide, and it is difficult to place the trumpet guide close to the web guide plate. If the trumpet guide is placed close to the web guide plate, the backflow from the trumpet guide will adversely affect the web being focused, which is undesirable.

Means to solve problems Therefore, the present invention solves the problems of the conventional device described above.

Even if the web focusing guide is placed close to the downstream side of the delivery roller and the trumpet guide is arranged at a distance behind the web focusing guide, □ the backflow of air at the inlet of the trumpet guide is suppressed, Even during high-speed spinning, tension by a calendar roller acts on the sliver between the web focusing guide and the trumpet guide.The web focusing guide is installed close to the downstream side of the feed roller, and A sliver guide is provided between the outlet part and the trumpet guide, the sliver guide having an opening that communicates with the outside air and a guide surface that focuses and guides the sliver drawn out from the outlet part. There is.

Operation: The wide thin web fed out by the feed roller is guided substantially perpendicularly by the web focusing guide and focused to the exit section at the substantially central portion, from which it is drawn out as a sliver. The drawn-out sliver is further focused and guided by the guide surface of the sliver guide, and the focused sliver is introduced into the trumpet guide. Therefore, the sliver drawn out from the outlet section is prevented from expanding by containing air, and the amount of air forced out at the inlet section of the trumpet guide is reduced. Moreover, the air pushed out at the inlet of the sliver guide or trumpet guide is easily released into the atmosphere from the opening of the sliver guide, and the pushed air flow no longer acts on the sliver to a large extent.

EXAMPLE The present invention will be explained in detail below by referring to an example shown in the drawings. Reference numeral 1 indicates a docker of the carding machine; 2 indicates a stripping roller disposed near the dower 1; 3 and 4 indicate a pair of upper and lower delivery rollers disposed in front of the stripping roller 2; 5 and 6; is a pair of upper and lower calender rollers which are provided with a reversible trumpet guide 7 on the inlet side and are arranged at a relatively long distance from the feed rollers 3 and 4 to enable the feeding operation. Among the rollers, the stripping roller 2 is the stripping roller 1.
The delivery rollers 3, 4 in front of it are driven at the same speed or slightly faster than the stripping roller 2, and the calender rollers 5, 6 in front of them are driven at a slightly faster speed than the delivery rollers 3, 4. 1.15 than
It is driven at a speed approximately 1.29 times faster. Reference numeral 9 denotes a web convergence guide disposed near the downstream side of the delivery roller 3.4, which includes a web holding surface 10 that immediately holds the wide thin web 8 sent out from the delivery roller 3.4 from below; Left and right focusing guide surfaces 11 and 12 inclined toward the center at an obtuse angle with respect to the web feeding direction
and upper and lower surfaces of the upper surface 13 facing the web holding surface 10,
It consists of four sides, left and right, and the four sides 10.11.12.13
Among them, at least the left and right focusing guide surfaces 11 and 12 and the upper surface 13 extend from the wide inlet part 14 to the rectangular narrow outlet part 14A.
They are about to converge and form an integrated structure. Further, as shown in the figure, the web holding surface 10 of the web focusing guide 9 has a truncated triangular shape with a low height so that the fed wide thin web 8 can be immediately held from below and focused immediately toward the center. 95 with respect to the feeding direction of the web 8, which rises along the hypotenuse of the truncated triangle.
Left and right focusing guide surfaces 11 and 12 are formed which are inclined toward the center at an obtuse angle of approximately 100 degrees, and the inclined left and right bundle guide surfaces 11 and 12 change the extrusion force from the rear of the web toward the focusing direction. Orient the wide if ugly web 8
is formed so as to focus it toward the center. Further, as shown in the figure, the inlet portion 14A of the web converging guide 9 is located so that the edges of the web holding surface 10 and the upper surface 13 are located from horizontal lines aa' and bb' passing through the centers of the upper and lower feed rollers 3.4. The web 8 is also formed in such a size that it is positioned on the inside, and is formed to prevent the web 8 from winding up and waving during high-speed operation. Outlet section 14 of web focusing guide 9
As is clear from the drawing, point A is located at a position offset downward from the common tangential direction of the feed rollers 3 and 4, and the web fed out from the feed roller 3.4 near the exit portion 14A is pushed downward by the upper surface 13. You will be guided.

Further, the web convergence guide 9 is configured to be able to separate from the delivery rollers 3 and 4 in order to facilitate the web feeding operation.Hereinafter, the reversing mechanism 15 of the web convergence guide 9 will be explained.

A pair of brackets 17A, 17B are provided facing each other at an appropriate distance in the machine width direction at the rear of the cross beam 16 in which the calendar rollers 5, 6 described above are provided, and the brackets 17A, 17B are rotated by the facing brackets 17A, 17B. A freely movable horizontal shaft 18 is pivotally supported, and a pair of swinging arms 19A and 19B whose lower ends are fitted to the horizontal shaft 18 are fixed at an appropriate interval, and the swinging arms 19A and 19B are arranged opposite to each other. Left and right mounting plates 20A and 20B fixed to the web focusing guide 9 are respectively fastened with bolts to the upper part of the web focusing guide 19B, and one of the swinging plates n@19A is
Piston rod 2 of air cylinder 22 swingably supported via bracket 21 below cross beam 16
3, and the piston rod 23 of the air cylinder 22 is protruding, and the swinging arms 19A, 19B abut against the stoppers 24 implanted in the brackets 17A, 17B, and the web focusing guide 9 is in the operating position shown by the solid line. When the piston rod 23 is retracted, the swing arm 1
9A, 19B and the web convergence guide 9 are automatically reversed around the horizontal axis 18 toward the front calendar roller 5.6 and held at the outputting work position shown by the imaginary line. , 25 are stoppers on the reverse side installed in the brackets 17A, 17B. Furthermore, at one end of the horizontal shaft 18, there is a switch cam 26 and a limit switch 27 for checking the restoration of the web focusing guide.
If this limit switch 27 is not activated, the carding machine will not switch from low speed to high speed even if the high speed changeover push button switch is pressed. In addition, the piston rod 23 of the air cylinder 22 is retracted by a stop motion operation such as a sliver breakage, and the piston rod 23 protrudes by a command to switch from low-speed operation to high-speed operation to automatically reverse the web focusing guide 9. There is. However, the reversing machine Il' of this web focusing guide 9
115 is not limited to this embodiment, and a handle or the like may be attached instead of the air cylinder 22 so that it can be manually reversed.

Further, between the web focusing guide 9 and the trumpet guide 7 arranged on the inlet side of the calender rollers 5 and 6, there is an opening 50 that communicates with the outside air, and a guide that further focuses and guides the focused sliver. A sliver guide 28 having a U-shaped cross section (including a ■-shaped cross section) and having a surface 51 is provided so as to be movable up and down via an air cylinder 29 and a guide rod 31 . The opening 50 includes a gap 50a provided between the web focusing guide 9, a gap 50b provided between the trumpet guide 7, and the sliver guide 28.
It consists of a bay mouth 50c formed on the upper side over the entire length of the pipe, and the bay mouth 50c is formed in a V shape as shown in FIG. 3 so as to easily receive the sliver. This sliver guide 28 is also held at the operating position shown by the solid line by the protrusion of the piston rod 30 of the air cylinder 29, and at the standby position shown by the phantom line by the retraction of the piston rod 30. Furthermore, due to a stop motion operation such as when the sliver breaks, the piston rod 30 of the air cylinder 29 first retracts, lowering the sliver guide 28 from the operating position to the standby position, and then the piston rod 23 of the air cylinder 22 retracts. The web converging guide 9 is automatically reversed from the operating position to the pick-up position. Furthermore, when switching from low-speed operation to high-speed operation after one mouth is dispensed, the operation is performed in the reverse order. This sliver guide 28.

The inner width and the position of the lower surface of the calender roller 5.6 are set so that the tensile force of the calendar roller 5.6 is propagated into the rear web focusing guide 9 by further focusing the sliver coming out of the web focusing guide 9.

In this embodiment configured as described above, when the sliver cutting stop motion (not shown) or the like is activated and the carding machine after the carding machine 1 is stopped, the piston rod 30 of the air cylinder 29 is retracted by the stop command, and the solid line The sliver guide 28, which was in the operating position shown by , is lowered to the standby position shown by the imaginary line, and then, in response to the lowering confirmation command, the piston rod 23 of the air cylinder 22 is retracted, and the web convergence guide 28, which was in the operating position shown by the solid line, is lowered to the standby position shown by the solid line. 9 is automatically reversed to the lead-out work position indicated by the imaginary line. In this state, when the carding machine after dosing cloth 1 is restarted and starts running at low speed, the wide thin web 8 stripped off from the dosing cloth 1 by the stripping roller 2 is sent out to the feed roller 3.
．． Sent out from 4. The leading end of the web 8 sent out from the delivery roller 3.4 is manually collected, passed through the reversed web collection guide 9 and the trumpet guide 7 to the feeding work position, and passed through the front calendar roller 5.
．． The tip of the sliver sent out from the calender roller 5.6 is then fed to a coiler head (not shown) to complete the drawing operation. When this picking operation is completed, when the high/low speed switch 5 (not shown) is switched from the low speed side to the high speed side, the switching command causes the piston rod 23 of the air cylinder 22 to protrude and remove the web converging guide 9 that was in the picking position. Automatically return to operating position. Next, the piston rod 30 of the air cylinder 29 protrudes to automatically return the sliver guide 28 from the standby position to the operating position, and causes the sliver between the web focusing guide 9 and the trumpet 1 to enter the guide groove 8a. invite. The carding machine is automatically switched from low speed to high speed by the command to confirm the return of the sliver guide 28, and continues to operate at high speed. As described above, in the carding machine that automatically returns the web converging guide 9 and the sliver guide 28 to the operating position after completion of feeding and enters high-speed operation, a wide thin web is sent out at high speed from the delivery roller 3.4. As soon as the web 8 enters the web focusing guide 9 provided in front of it, it is held from below by the web holding surface 10, and the left and right focusing guide surfaces 11 are inclined toward the center at an obtuse angle with respect to the feeding direction.
and 12 and change direction toward the center, and the web 8
The rectangular outlet portion 14 is sequentially focused toward the center by the pushing force from the rear and the tensile force due to the draft from the front.
A is formed into a sliver and drawn out. In this case, the web sent out from near the center of the delivery roller 3.4 is guided by the focusing guide surface 11.12 and the upper surface, deflected downward, and then guided by the web holding surface 10 and wound into a spiral, This rolled-up web is guided to the outlet section 14A and pulled out. That is, when the web is collected and pulled out from the outlet 14A, the left and right edges of the bundled web are continuously rolled downward in the vicinity of the exit and are pulled out from the outlet 14A. . This wrapped portion of the web ensures that the tension of the sliver in the outlet section 14A is transmitted to the web at a location far from the outlet section 14A in the web focusing guide 9;
At the same time, the degree of web entanglement near the exit portion 14A increases. As a result, even when the web spinning speed is increased, the exit section 14. Ensure that the web at a position far away from A (positions near both ends of the feed rollers 3.4) is delivered to the exit section 1.
4A and can prevent web breakage. The sliver pulled out from the web focusing guide 9 is further focused by the guide surface 51 while passing through the guide groove 8a of the sliver guide 28 in front of it, and is introduced into the trumpet guide 7 in the front in the focused state. After passing through the calender roller 5.6, it is further focused through the calender roller 5.6 and the trumpet guide 7, and then received in a can leading to the coiler. In this case, the sliver drawn out from the outlet of the web focusing guide 9 as described above is transferred to the guide surface 5 of the sliver guide 28.
1, the sliver is further focused and the sliver in the % bundle state is introduced into the trumpet guide 7, so the amount of air pushed out from the sliver by the trumpet guide 7 is reduced, and the influence of the backflow of extruded air on the sliver is reduced. Furthermore, the sliver is guided by the guide groove 28a of the sliver guide 28, and the air pushed out by the sliver guide 28 and trumpet guide 7 is immediately released into the atmosphere from the gaps 50a, 50b and the groove 50c. Therefore, even when the sliver spinning speed is increased, the flow of the sliver can be prevented from being disturbed by the extruded air.

As described above, the web focusing device of this embodiment includes a web holding surface 10 on the web focusing guide 9 for immediately holding the wide thin web 8 sent out from the sending roller 3.4 from below, and Since the edges of the web holding surface 10 and the upper surface 10 are located inside the horizontal lines a-a' and bb' passing through the centers of the upper and lower delivery rollers 3.4 and are close to both rollers, Even when short fibers such as cotton fibers are focused at high speeds of over 100 meters per minute.

Since the web 8 does not exhibit a waving phenomenon or both ears hang down, the web 8 is not disturbed and no web breakage occurs. Further, the web focusing guide 9 of this embodiment has left and right focusing guide surfaces 11 and 1 at an obtuse angle with respect to the feeding direction of the web 8 on the front surface in the feeding direction of the web 8.
2, the extrusion force of the web 8 sent out from the delivery roller 3.4 is deflected in the focusing direction and the extrusion force is used to focus the wide thin web 8.
Even short fiber webs such as cotton fibers with a low degree of inter-fiber entanglement can be neatly focused and formed into slivers at high speeds exceeding 100 meters per minute.

Further, the web Kento device of this embodiment has a web focusing guide 9.
Since a sliver guide 28 is provided on the exit side of the web 8 for further focusing and guiding the focused sliver, the tensile force by the calendar rollers 5 and 6 is propagated to the rear web focusing guide 9, thereby further focusing the web 8. make it easier. Therefore, in the case of this embodiment in which the sliver guide 28 is provided, even if the web is made of short fibers such as cotton fibers with a low degree of entanglement between fibers, the web can be processed at a high speed of about 200 meters per minute. It can be focused in an orderly manner.

Furthermore, in the above embodiment, the web convergence guide 9 can be separated from the delivery roller 3.4, and the sliver guide 28 can be moved up and down, so that when the web convergence guide 9 is reversed to the feeding position, the exit The part is held close to the inlet part of the trumpet guide 7, and a large space is created between the web focusing guide 9 and the delivery rollers 3, 4, so that the feeding operation can be carried out safely and easily. or.

Since the sliver guide is formed into a U-shaped cross section and its upper part is open, it is possible to guide the sliver being spun at low speed during operation, and it is easy to inspect at a glance to check the spinning state of the sliver. It has certain characteristics.

Effects of the Invention As described above, in the present invention, a web focusing guide is provided close to the downstream side of the feed roller, and the space between the outlet of the web focusing guide and the inlet of the trumpet guide is communicated with the outside air. Since a sliver guide having an opening and a guide surface that focuses and guides the sliver drawn out from the opening is provided, the web sent out from the delivery roller is focused to the center by the web focusing guide and exits from the exit section. As well as being able to be drawn out as a sliver.

The drawn sliver can be focused and guided by the sliver guide, and the focused sliver can be introduced into the trumpet guide, thereby reducing the amount of air forced out of the sliver at the entrance of the trumpet guide. In addition, the air pushed out of the sliver by the sliver guide or trumpet guide can be immediately released into the atmosphere through the opening, and the sliver between the web focusing guide and the trumpet kite can be guided in a focused state. Therefore, the pulling back action of the sliver by the extruded air can be suppressed, and even when the sliver spinning speed is increased to 19 degrees, the tension by the calendar roller can be sufficiently transmitted to the sliver at the outlet of the web focusing guide. The tensile force of the calendar roller is propagated into the rear web focusing guide, making it easier to focus the web.
It can be neatly focused and formed into a high quality sliver at a high speed of about a meter.

[Brief explanation of the drawing]

FIG. 1 is an intermediate sectional view showing one embodiment of the present invention. FIG. 2 is a parent view of FIG. 1, and FIG. 3 is a sectional view taken along line AA in FIG. 3.4...Feeding roller, 5.6...Calendar roller, 7...Trumpet guide, 9.
・Web focusing guide, 28...Sliver guide, 5
0...Opening, 51...Guide surface

Claims (1)

[Claims] 1. A pair of upper and lower delivery rollers, a trumpet guide, and a calendar roller are disposed downstream of the carding machine, and the web sent out from the delivery rollers is collected and introduced into the trumpet guide. In the apparatus for forming a sliver, on the downstream side of the delivery roller, the web sent out from the delivery roller is guided in a direction substantially perpendicular to the delivery direction of the web, and is focused at an exit portion at a substantially central portion. A web convergence guide that is adapted to be pulled out from the outlet thereof is provided, and between the outlet of the web convergence guide and the inlet of the trumpet guide, an opening communicating with outside air and a sliver drawn out from the outlet are provided. A web converging device for a carding machine, comprising a sliver guide having a guide surface for converging and guiding the sliver. 2. A sliver guide with a U-shaped cross section is provided, which has a gap between the web focusing guide and the trumpet guide, and has a guide groove that is open upward over the entire length. A web converging device for a carding machine according to claim 1. 3. The web gathering device for a carding machine according to claim 2, wherein the sliver guide is movable up and down, and the web gathering guide is capable of separating downstream from the delivery roller.