JPH0159363B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION (INDUSTRIAL APPLICATION) The present invention relates to a method for converging a carded web into a sliver.

(Prior Art) A trumpet is generally employed as a means for converging and introducing a web produced by a card to a calender roller. When attaching the web to the calender roller, it is necessary to pass the end of the thinly bundled web through the narrow focusing hole at the tip of the trumpet. If the web is not passed through, a part of the web may not be focused and introduced to the calender roller side due to the weakness of the entanglement of the web itself. Therefore, this kissing operation is highly dependent on the experience of the operator, and has disadvantages in that it is time consuming and there is a lot of loss of web due to kissing mistakes.

A method for converging card webs that attempts to solve this problem is disclosed in Japanese Patent Laid-Open No. 51-32832. According to this focusing method, a duct whose width gradually becomes narrower on both sides is arranged so as to be inclined downward, and the web from the card is introduced into the duct, and the width of the web is gradually restricted, and the calender roller The web is automatically guided to the calender roller. However, the problem is that the web conveyance method that relies on the straightness of the web coming out of the card from the card and the inclination of the duct cannot be expected to effectively focus the web, and that automatic feeding of the web to the calender roller lacks reliability. There is.

In another example of the above-mentioned publication, a suction drum having a large number of suction holes on the circumferential surface is rotatably disposed near the tip of the duct, and the web being guided inside the duct is forcibly guided by suction by the rotation of the suction drum. A method is disclosed in which the paper is sent to the calender roller side for automatic kissing. This effectively focuses the web guided in the duct and ensures automatic kissing of the calender rollers. However, the configuration of the device used in this automatic kissing method is complex, and the need to effectively collect the web and feed it to the calender roller in a timely manner requires high-precision machining of the suction drum, which increases costs. I can't.

(Problems to be Solved by the Invention) Therefore, in the present invention, from the viewpoint of adopting manual kissing instead of the automatic kissing method that involves various problems as described above, the present invention has been proposed to replace the conventional manual kissing method using a trumpet. Instead, it is an object of the present invention to provide a method that allows kissing to be performed easily and in a short time without requiring any experience.

Structure of the Invention (Means for Solving Problems) Therefore, in the present invention, when the web connected to the card is brought into contact with the calender roller, a guide converging section formed by a web converging member disposed in front of the calender roller is provided. was spread out, and the leading end of the bundled web was inserted into the spread guide and convergence part to kiss the calender roller, and after the kiss was completed, the guide and convergence part was narrowed to squeeze the web.

(Function) That is, for example, the web guiding and converging section is formed to be able to be expanded and contracted by combining a plurality of converging members, and the tip of the bundled web is manually attached to the calender roller while the web guiding and converging section is expanded. . At this time, since the web guiding and converging section is enlarged, mistakes such as parts of the web not being kissed do not occur, and the kissing work can be performed easily and in a short time without relying on experience. Therefore, no web loss occurs. A similar effect can be obtained when a single focusing member can be deformed to set the web guide focusing section in two ways: enlarged and contracted.

Embodiment Examples 1 to 5 which embody the present invention will be described below.
This will be explained based on the diagram.

As shown in FIG. 1, a web W produced by a card made up of a take-in roller 1, a cylinder 2, a rotary flat 3, and a printer 4 is stripped from the printer 4 by a stripping roller 19 and then removed by a delivery roller 5. , 6 to the calender rollers 7 and 8 side. Calendar roller 7,
On the web path in front of 8 is a first focusing member 9.
is arranged and fixed, and a plate-shaped second focusing member 1 is provided between the focusing member 9 and the calender rollers 7 and 8.
0 is vertically slidably supported by a guide member (not shown). A reciprocating drive device 11 consisting of an electromagnetic solenoid or an air cylinder is disposed below and toward the rear of the calender rollers 7, 8 in a direction perpendicular to the axes 7a, 8a of the calender rollers 7, 8. The drive shaft 11a is located below the calender rollers 7, 8.
The lever 13 is connected to one end of a lever 13 rotatably supported by a support shaft 12 arranged parallel to the lever 8a.
A connector 14 is fixed to the lower end of the back surface of the second focusing member 10, and the other end of the lever 13 is engaged with the engagement shaft 14a.
Therefore, the protruding operation of the drive shaft 11a of the reciprocating drive device 11 moves the second focusing member 10 upward to the position shown by the chain line in FIG. Return to the position shown by the solid line.

The first focusing member 9 has a web guide focusing section 15.
is recessed from the top surface. The card side of the guide convergence part 15 has a large U-shaped introduction part 15a.
At the same time, the calender rollers 7 and 8 side of the guide part 15 is formed into an insertion part 15b with a large V-shaped opening, and the lower end of the insertion part 15b is formed into a narrow U-shaped aperture. It is formed in the portion 15c. Further, a rectangular window 16 is formed in the upper part of the second focusing member 10, and the peripheral edge of the window 16 is processed to have a curved cross section. Alumni 16 is the third
As shown in the figure, the size is set to include the guiding and focusing portion 15 when viewed in the direction of movement of the web W.

Now, during normal card operation, the reciprocating drive device 1
The first drive shaft 11a is in the retracted state, and the second focusing member 10 is held in a downward motion as shown in FIGS. Therefore, when viewed in the moving direction of the web W, the passage of the web W formed by the guide and convergence section 15 and the window 16 is limited only to the constriction section 15c, and the web W is introduced from the introduction section 15a of the guide and convergence section 15. The web W is focused at the constriction part 15c,
It is sent to the calendar rollers 7 and 8 side.

When kissing, the drive shaft 11a of the reciprocating drive device 11
is operated to project, and the focusing member 10 is moved upward as shown in FIGS. 3 and 5. As a result, the window 16 of the focusing member 10 opens into the focusing member 9 when viewed in the moving direction of the web W.
The passage of the web W is expanded to the size of the insertion portion 15b. Therefore, when the leading end of the web W is bundled and kissed on the calender rollers 7 and 8, the operation of passing it through the insertion part 15b and the window 16 is easy, and the kissing can be performed smoothly and in a short time without mistakes. That is, no experience is required on the part of the operator, and there is no loss of the web W due to a kissing error.

When the kiss is performed without mistakes, the drive shaft 11a of the reciprocating drive device 11 is retracted based on a detection signal from a kiss completion detection means (not shown), and the second focusing member 10 is moved to the position shown in FIGS. Returns to downward movement. Therefore, the passage of the web W returns to the constriction part 1.
The web W, which continues to the calender rollers 7 and 8 via the introduction section 15a, the insertion section 15b and the window 16, is guided into the constriction section 15c. Then, as the card operates normally, the web W is focused and becomes a sliver via calender rollers 7 and 8.

Note that it is of course possible to change the shapes of the guide focusing portion of the first focusing member 9 and the window 16 of the second focusing member 10 in this embodiment as appropriate.

The present invention can also be embodied as an embodiment shown in FIG. In this embodiment, the focusing member 17 is formed of a single shape memory alloy, and the focusing member 17 memorizes two shapes shown by a chain line and a solid line in the figure. That is, the focusing member 17 maintains the shape shown by the solid line when the temperature falls below a predetermined temperature,
When the temperature exceeds the predetermined temperature higher than the above, it deforms into the shape shown by the chain line. Therefore, if the focusing member 17 is kept in the shape shown by the chain line during normal card operation to reduce the web path, and during kissing, it is deformed to the shape shown by the solid line to enlarge the web path, the kissing can be done quickly and without mistakes. It can be done easily in hours. Note that 18 is a heater for heating the focusing member 17, and is electrically connected to a power source (not shown). Of course, the focusing member using a shape memory alloy can also be set in a trumpet shape during normal operation of the card.

Effects of the Invention As detailed above, according to the card web gathering method of the present invention, the web is gathered by narrowing the web path during normal operation of the card, and the web path is widened during kissing. This can be done easily and has the excellent effect of eliminating the loss of webs due to kissing mistakes.

[Brief explanation of drawings]

1 to 5 show an embodiment embodying the present invention. FIG. 1 is a side view showing the path of the web from the card to the calender roller, and FIG. 2 is a perspective view showing the vicinity of the web convergence after the kissing is completed. Figure 3 is a perspective view showing the vicinity of the web convergence during kissing, Figure 4 is an enlarged sectional view taken along the line A-A in Figure 1, and Figure 5 corresponds to Figure 3, with changes from Figure 4. FIG. 6 is a perspective view showing another example of the present invention. Calendar roller...7, 8, focusing member...9,
10, 17, Reciprocating drive device...11, Guide focusing unit...15, Window...16, Web...W.

Claims (1)

[Claims] 1. When kissing the web connected to the card to the calender roller, the guiding converging part formed by the web converging member disposed in front of the calender roller is widened, and after the kissing is completed, the guiding converging part of the card web is narrowed. Focusing method.