JPH03200675A - Splicing device - Google Patents

Abstract

PURPOSE: To establish a strong and attractive appearance coupling part by allowing that the wall of a longitudinal groove of a pressure air passage which is located on the opposite side to the longitudinal axis, to terminate inside the body of a splicing head, and to penetrate the end wall of the pressure air passage and the walls of the longitudinal groove. CONSTITUTION: The wall 18 of a longitudinal groove 7 of a pressure air passage 16 which is located on the opposite side to the longitudinal axis 20, terminates inside the body of a splicing head 2. The end wall 19 of the passage 16 is made thinner conically toward the longitudinal axis 17 of the passage 16 and forms a baffle body for the splicing air 22 flowing in. That is, the direction of the influx air is changed as shown by the arrow 22a to generate a vortex in the counterclockwise direction. The vortex seizes the fibers positioned side by side at the two yarn ends 14a and 14b so that they entangle each other. In the groove 7, the yarn coupling part is given a twine in the counterclockwise direction.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a splicing device with a splicing head, the splicing head having longitudinal grooves for splicing two yarn ends using pressurized air. , an insertion slit for inserting the yarn end to be spliced into the longitudinal groove, and at least one pressurized air inlet opening into the longitudinal groove, the incoming slit air flowing into the longitudinal groove. It relates to a type that partially collides with a flow baffle when it enters.

PRIOR TECHNOLOGY The result of the joining of two yarn ends by splicing using pressurized air is that the splicing device can in each case adjust the yarn to different yarn parameters, such as yarn count, fiber material and different yarn twists. It depends on whether the parameters are optimally adjusted or not. That is, the outcome of yarn bonding by splicing depends on whether or not pressurized air for the splicing process is blown into the splicing path in such a way as to create an optimal intertwining of the yarn fibers in the splicing path for the splicing process. ,It is determined. For this reason, the longitudinal grooves must be adapted to the respective needs and the configuration of the longitudinal grooves must be adjusted on the basis of said parameters. The desired purpose during splicing is
This means that the strength of the splicing points in the yarn is not significantly lower than the strength of the yarn itself.

A large number of splicing devices are known from the prior art, which are adjusted to a wide variety of yarn parameters by arranging pressurized air inlets in the longitudinal grooves. For example, in the splicing device disclosed in DE 37 43 516, in the splicing chamber for splicing stable fiber yarns, a pressurized air inlet is provided for a defined, selectable pair of air swirls. , directly connected to a common pressurized air supply.

This common pressurized air supply is connected via controllable valves to
It is connected to a supply conduit that conducts pressurized air from a source of pressurized air. In response to the task posed, it is desired that this pressurized air splicing chamber, despite its simple design, be able to splice relatively weak staple fiber yarns with different yarn parameters in the same splicing chamber. This pressurized air splicing chamber is therefore only suitable for splicing relatively weak staple fiber yarns. This pressurized air splicing chamber is therefore not suitable for hedgey yarns, to which the fibers easily adhere, and especially for highly twisted yarns.

SUMMARY OF THE INVENTION It is an object of the present invention to improve a splicing device of the type mentioned at the outset so as to be able to produce durable and aesthetically pleasing spliced joints, while still meeting the specific requirements imposed when processing yarns. It is an object of the present invention to provide a splicing device, in particular for special thread formation, which can satisfy the following requirements.

Means for Solving the Problem In order to solve this object, the present invention provides that the pressure air channel leading to the pressure air inlet is provided in the body of the splicing head in the following manner, that is, the longitudinal direction of the pressure air channel is the wall opposite the longitudinal axis of the directional groove terminates inside the body of the splicing head, and
The end wall of the pressure air passage and the wall of the longitudinal groove are provided so as to pass through each other.

Effects of the Invention The incoming air is not only caused to form a vortex by the shape of the longitudinal grooves, but also by the flow obstructions. This flow obstruction is caused by the penetration between the end wall of the pressure air channel and the wall of the longitudinal groove. The additional turbulence caused by the inflow of pressurized air causes even more intensive mixing of the yarn ends to be gelled. Even very "recalcitrant" Jm fibers, such as hemp fibres, for example, can be spliced here with sufficient strength at the splicing point.Also, with "normal" yarns, the strong mixing of the fiber ends makes it possible to splice more easily than in the traditional case. The same effect can be achieved with a shorter splicing time, which in turn results in significant savings in pressurized air.

The flow baffle further ensures that the air takes a preselected path of movement, for example around the fibers in the longitudinal grooves, thereby causing the fibers to rotate again in the direction of the yarn twist. It is advantageous to be arranged so that the

In order to obtain a flow obstruction for the incoming splicing air reservoir in an advantageous embodiment of the invention, a pressurized air channel leading to the pressurized air inlet is provided in the body of the splicing head, in which the pressurized air A wall of the passage opposite the longitudinal axis of the longitudinal groove terminates inside the body of the splicing head. This means that the pressure air channel does not impinge on the walls of the longitudinal groove over its entire cross section. The pressurized air inlet is shaped by a longitudinal groove partially passing through the pressurized air channel.

In order to form the pressure air channel in the simplest manner, it is advantageous if the pressure air channel is constructed as a hole, and the chain hole ends in the body of the sedge-raising head after impact with the wall of the longitudinal groove. . The necessary pressurized air inlet is created by the penetration of the wall of the longitudinal groove.

The entry of the pressurized air passage into the body of the splicing head can be achieved by simple means, such as for example with a milling cutter or a drill. The end surface shape produced by such a tool is itself already capable of exerting a specific and variable influence on the flow direction of the pressurized air.

The end wall of the pressure air channel simply forms a flow barrier as its end. This eliminates the need for special flow baffles in the longitudinal grooves. By adjusting the position of the end wall of the pressure air channel with respect to the longitudinal axis of the pressure air channel, it is furthermore possible to influence the direction of the inflowing pressure air in a simple manner. If the end wall of the pressurized air passage is located perpendicular to the longitudinal axis of the pressurized air passage, as occurs, for example, when forming the pressurized air passage using a flat 7 rice, the flow obstruction A portion of the incoming pressurized air that impinges on the working end wall can be deflected approximately at right angles.

If the walls of the pressure air channel are conical, as is the case when the pressure air channel is formed using a drill, the air flow is directed obliquely. Also, the taper of the conical tip can provide a nozzle effect to the flow.

By selecting the tool for forming the pressurized air channels and the arrangement of the pressurized air channels, even relatively difficult configurations of the pressurized air inlets are made possible. This makes it possible, for example, to provide pressurized air inlets at locations that are not directly accessible to the tool, which is not possible in the case of direct longitudinal groove drilling known up to now.

A plurality of pressurized air inlets may be opened in the longitudinal groove. In another advantageous embodiment of the invention for obtaining uniform sedge-raising results, a plurality of pressurized air channels are provided, the pressurized air inlets extending through the longitudinal axis of the longitudinal groove. They are arranged at intervals in the axial direction on the left and right sides of. In this case, two pressurized air inlets are usually located opposite each other at a distance on the left and right sides of a plane passing through the longitudinal axis of the longitudinal groove. With this configuration, it is possible to easily generate air vortices with opposite rotational directions, which in turn cause the fibers to be spliced to be redirected in each case and the yarn to be spliced to be spliced. They can be intertwined with each other in the direction of rotation. Depending on whether the pressurized air inlets are located at the upper left and lower right of the yarn or at the upper right and lower left of the yarn, it is possible to splice double-strand or triple-twist yarns. The criterion for the arrangement of the pressurized air inlets, however, is always an air vortex which imparts a corresponding rotation to the fibers. Therefore, even though the same pressure air inlets are located on the same side of the plane, if there is an opening at the bottom of the groove, the rotation of the air will be different from if there is an opening near the insertion slit. It's different.

Example The invention will now be described in detail with reference to the drawings.

A splicing head 2, of which only the components of the splicing device I that are important for the invention are shown in FIG. 1a, is screwed onto a holder 3 using a fixing screw 4. 5 connections for pressurized air for splicing
It is shown in Furthermore, a tube passes through the holding body 3 and reaches the splicing head, to which is fixed a pressure air supply conduit 6 extending from a pressure air source (not shown). The splicing head is
The cross section has a longitudinal groove 7 which is approximately circular. The insertion slit 8 on the front side of the splicing head 2 is inserted into the lid 9
Closed by. This results in a circumferentially closed chamber. The closing plate IO is covered by an elastic sealing element 117 which covers the insertion slit 8.

To insert the thread, the lid 9 is pivoted away. For this purpose, the lid is fixed to the operating lever 12 using screws 13. The operation in this case is carried out by devices which are not shown but are known from the prior art.

The elastic sealing element serves to ensure a reliable closure of the insertion slit 8 even if the lid 9 does not occupy a completely correct position. In the longitudinal groove 7 two thread ends 14a and 14b are located side by side. Both yarn ends are fully opened and untwisted in preparation for the splicing process.

A pressurized air inlet 15 opens in the longitudinal groove 7 . This pressurized air inlet is located to the left of a surface 21 extending through the longitudinal axis 20 of the longitudinal groove and the insertion slit 8 . The pressurized air inlet 15 is the connection of the pressurized air passage 16 to the longitudinal groove, through which the pressurized air for sgelizing passes through the splicing head 2 in the direction of the arrow 22. It passes through and flows into the longitudinal groove 7.

The pressure air passage 16 is a hole with a circular cross section.

However, the pressure air duct may also have another cross-sectional shape, for example a square cross-sectional shape. Pressure air passage 1
The longitudinal axis 17 of 6 is located on the wall in the longitudinal direction +1!7 at the height of the center point of the cross section of the longitudinal groove, that is, the longitudinal axis 2
At the height of 0, they touch. The longitudinal axis 17 of the pressure air channel 16 lies parallel to the plane 21 . From FIG. 1a, the pressure air passage 16 and the longitudinal groove 7 are shown.
You can clearly see the relationship between the wall and the wall. The wall 8 of the pressure air channel 16 opposite the longitudinal axis 20 of the longitudinal groove 7 ends inside the body of the splicing head 2 .

The dimensions of the pressurized air inlet and its position are determined by the diameter or cross section of the pressurized air channel and the position of the longitudinal axis of the pressurized air channel and the position of the end wall. These parameters influence the flow direction of the pressurized air. Assuming that the cross-sectional areas of the pressure air passages are equal, the longitudinal axis of the pressure air passages extends from the outside towards the longitudinal groove parallel to the plane passing through the longitudinal axis of the longitudinal groove, and finally If it intersects the longitudinal groove, the pressure air inlet will be larger. The same applies if the longitudinal axis is fixed in position and the end wall is moving towards the longitudinal groove.

The end wall 19 of the pressure air channel 16 is produced by the shape of the drill tip. This end wall tapers conically towards the longitudinal axis 17 of the pressure air passage 16. The end wall 19 of the pressure air channel 16 forms a flow obstruction for the incoming splicing air 22. Arrow 22 a 4: The incoming pressurized air is thus deflected by the flow baffle 19 as shown. Then, a counterclockwise vortex is generated. This pressure air temperature is
The fibers located next to each other are captured and these fibers are entangled with each other. , in which case the thread connections in the longitudinal groove are twisted in a counterclockwise direction.

This splicing head is particularly suitable for splicing 5-strand yarns.

FIG. 1b is a cross-sectional view of the splicing head along plane 21. FIG. This cross-sectional profile and the viewing direction can be seen in FIG. 1a.

For clarity of the drawings, the yarn ends 14a and 14b shown in Figures 1a and 1j are omitted.
The longitudinal axis I7 is the longitudinal axis 2 of the longitudinal groove 7.
It extends perpendicular to 0. The pressure air passage 16 opens into the longitudinal groove at the center of the longitudinal axis 20 of the longitudinal groove 7 . Due to the penetration of the hole of the pressure air channel 16 into the wall of the longitudinal groove 7, a recess is created in the wall of the longitudinal groove which forms the pressure air inlet 15. 1st b
From the figure, the end wall 1 of the pressure air passage forming a flow baffle is shown.
You can clearly see that number 9 tapers into a conical shape. Due to this end wall, the pressurized air is deflected from the drawing plane towards the left.

FIG. 2 shows another embodiment of a splicing device according to the invention. Only the parts of the splicing head that are important for the invention are shown here, namely the longitudinal groove, the lid in the closed position, and the pressurized air channel. In this case, parts that are the same as in FIGS. 1a and 1b are designated with the same reference numerals plus 200.

The embodiment shown in FIGS. 1a and 1b differs from the splicing head shown in FIG. 2 in the configuration of the pressurized air passages and the location of the pressurized air inlets.

The longitudinal axis 217 of the pressure air passage 216 lies parallel to a plane 221 passing through the longitudinal axis 220 of the longitudinal groove 207. The pressure air passage 216 is machined using a milling cutter, so that the end wall 219 lies perpendicular to the longitudinal axis 217 of the pressure air passage 216. The hole is deep in the body of the splicing head 202, and the end wall 219 is connected to the wall of the longitudinal groove 207;
It intersects at the same point that the longitudinal axis 217 of the pressure air passage 216 intersects the walls of the longitudinal groove. According to the invention, therefore, the wall 218 of the pressure air channel 216 opposite the longitudinal axis 220 of the longitudinal groove 207 ends inside the body of the splicing head 202 . The pressure air inlet 215 is connected to the pressure air passage 2
16 and the longitudinal groove 207.

As can be seen in FIG. 2, the pressurized air indicated by arrow 222 is deflected at right angles at flow baffle 219 (see arrow 222a). This forms a vortex flow in the clockwise direction in the longitudinal groove. Such a swirl type is advantageously used when splicing double-ply yarns.

If, in conventional splicing heads, the pressurized air inlets open tangentially into the groove bottom, the pressurized air channels are provided on the sides of the splicing head perpendicular to the plane 22"l. As is clear from the example, the configuration according to the invention of the pressurized air inlet with the pressurized air channel provided on the back side of the splicing head allows the inlet to be provided on the side with a tangential opening in the groove bottom A rotational direction of flow similar to that in the pressure air channel can be obtained in the longitudinal groove.Such a solution is particularly advantageous when the groove bottom is connected to the splicing head at the side for structural reasons of the splicing device. Suitable in cases where access is not possible due to the pores provided.

In FIG. 3, a splicing head with a longitudinal groove 307 in the shape of a square is shown. Pressure air inlet 31
5 is located at the bottom of the groove.

A pressurized air passage 316 opens into the longitudinal groove from the dorsal side of the splicing head. The longitudinal axis 217 of the pressure air passage 216 lies parallel to the plane 321 passing through the longitudinal groove. A pressurized air passage is formed in the body of the splicing head 302 using a 7-rice cut, passing through the wall of the square leg. In this embodiment of FIG. 3, the end wall 319 of the pressure air passage likewise extends perpendicular to its longitudinal axis 317. longitudinal axis 31
7, the end wall 319 and the wall of the longitudinal groove converge in this embodiment as well. The position of the longitudinal axis of the pressure air channel is advantageously selected depending on the yarn parameters. For example, the longitudinal axis of the pressurized air passage is in plane 321
The end wall of the pressure air passage, the longitudinal groove and the longitudinal axis do not have to have a common point of intersection.

Pressure air flowing in for the splicing process (arrow 3
22) is deflected at the end wall 319 in the pressure air passage, as indicated by arrow 322a. ■
A longitudinal groove 307 in the shape of the lid 3 during the splicing process.
09, it is possible to form an air vortex inside the longitudinal groove.

In the illustrated embodiment, prepared yarn ends 314a and 31
A clockwise vortex is formed splicing 4b in a two-figure twist.

In another embodiment of the splicing head shown in FIG. 4, no lid is provided to close the longitudinal groove 407. The insertion slit 408 is integrally formed into the main body of the splicing head. Insertion slit 40
8 may, in contrast to the embodiment shown in FIG. 4, open tangentially to the side wall of the longitudinal groove 407.

This type of opening facilitates thread insertion and removal. Configuration of longitudinal grooves 407 and pressurized air passages 416
The location of the pressure air passage and the opening of the pressure air passage into the longitudinal groove by the pressure air inlet 415 corresponds to the features in FIGS. 1a and 1b. The configuration of the flow baffle 419 and the deflection of the splicing air 422 produced thereby as well as the vortex type produced thereby also correspond to the embodiments in FIGS. 1a and 1b.

FIG. 5 also shows a splicing head with circular longitudinal grooves. In this embodiment, the location of the splicing passage 516 and the pressure air inlet 515
All features except the location of are consistent with those of the embodiment in FIGS. 1a and 1b.

The pressure air inlet 515 has an insertion slit 508 at the bottom of the groove.
It is located opposite. The longitudinal axis 517 of the pressure air passage 516 lies at right angles to the plane 521 of the longitudinal groove 507, which extends through the longitudinal axis 520 of the longitudinal groove. In the illustrated embodiment, the wall of the longitudinal groove passes through the pressure air channel 516, and the longitudinal axis 517 is tangential to the course of the wall of the longitudinal groove. Longitudinal axis 520 of the longitudinal groove 507 of the pressure air passage 516
The wall 518 opposite the splicing head 502
It is located inside the main body of. The flow baffle 519, ie the end wall of the pressure air channel 516, is of conical design. The incoming pressurized air 522 is deflected at the flow baffle 519 (see arrow 522a), thereby creating a clockwise vortex flow. The prepared yarn ends 514a and 514b located in the longitudinal groove 507 are captured and twisted by the clockwise rotating air stream. This in turn produces a two-character twist in the yarn.

In the embodiments shown in FIGS. 6a, 6b and 7a, 7b, the splicing head has two pressurized air inlets, each of which has a longitudinal groove. They are located on the left and right sides of a plane extending in the longitudinal direction, and are spaced apart in the axial direction. Splicing heads with a pressurized air inlet arranged in the manner shown here are already known from the prior art. Such a splicing head provides a durable splicing joint with a particularly good appearance. However, in known splicing devices, the compressed air inlets are each constructed in such a way that they open into a longitudinal groove over the entire cross section of the compressed air channel. 5 shown! The pressurized air inlet in the embodiment differs from the pressurized air inlet in known splicing heads in that the incoming splicing air partially impinges on the flow baffle before the entrance to the longitudinal groove. That's true. Corresponding to the embodiments already described, the flow obstruction is formed by the wall of the pressure air channel opposite the longitudinal axis of the longitudinal groove terminating inside the body of the splicing head. .

FIG. 6a shows a splicing head 602 in cross-section.
It is shown. As in the embodiment of FIGS. 1a and 1b, this splicing head is screwed to the holder 603 using a fixing screw 604. Other parts of the splicing device that are not important to the invention are not shown.

The longitudinal groove 607 has a roughly circular cross section.

This longitudinal groove is connected to the pressurized air inlets 615a and 61.
It is cut at a height of 5b. The pressurized air blowing holes 615a and 615b are opened axially and laterally offset from each other on the left and right sides of a plane 621 (FIG. 6b) extending through the longitudinal axis 620 of the longitudinal groove 607. . Due to the arrangement of the pressure air inlets, opposite air vortices are created.

As shown in FIG. 6b, pressure air blowing l:+
615a and the pressurized air passage 616a have the same arrangement as the pressurized air inlet and the pressurized air passage in FIG. 1a. The pressure air inlet 615b and the pressure air passage 616b are connected to the longitudinal axis 620 of the longitudinal groove 607.
They are located opposite each other in mirror images across a plane 621 that passes through them. The longitudinal axes 617a and 617b of the pressure air channels 616a and 616b run parallel to this plane 621 and are tangent to the course of the wall of the longitudinal groove at the level of the longitudinal axis 620.

However, it is also possible that the longitudinal axis of the pressure air channel does not run parallel to the plane. That is, the longitudinal axis may extend at an angle to this plane and intersect the walls of the longitudinal groove. Similarly, embodiments are also possible in which one pressurized air inlet is located close to the insertion slot and the other pressurized air inlet is located close to the groove bottom. The location of the pressurized air inlet is selected based on the desired swirl formation.

Supply conduits 606a and 606b connected to connections 605a and 605b of pressure air passages 616a and 616b
can extend from a common pressure air source, not shown, so that equal pressure conditions are created in the same pressure air passages. The pressurized air 622' and 622'' required for splicing are, respectively,
It impinges on the flow baffle 619a or 619b and is thereby deflected into a longitudinal groove (arrow 622a'
and 622a"). This thus results in two opposite air vortices. Air vortex 622a' rotates in a counterclockwise direction and air vortex 622a" rotates in a clockwise direction. of the pressure air passage 616a or 616b,
Each wall 618a or 618b of the longitudinal groove 607 opposite the longitudinal axis 620 is open within the body of the splicing head. End walls 619a and 619 of pressure air passage 616a or 616b
b tapers conically in the direction of the longitudinal axis 617a or 617b of each pressure air passage. As in the embodiment shown in FIG. 1a, the longitudinal groove
It is closed by a lid 609 having the same structure as in figure a.

By closing the insertion slit 608 with the lid 609,
A semi-circular chamber 607 is created in which circular air swirls 622a and 622a'' are located above and below each other and move in opposite directions. Due to the direction of rotation of the air vortex generated thereby, the splicing head in this embodiment is suitable for splicing double-ply yarns or twisted yarns. When arranged interchangeably, the splicing head becomes suitable for splicing figure-5 twist yarns or threads.

The embodiment shown in Figures 7a and 7b shows only the splicing head 702, in which case the holder and lid are omitted. Splicing head 702 has a V-shaped longitudinal groove 707 . As can be seen in FIG. 7a, the pressure air passages 716a and 716b are spaced apart in the axial direction to the left and right of a plane 721 passing through the longitudinal groove 707. It is located near the slit 708. The longitudinal axes 717a and 717b of the pressure air passages 716a and 716b lie parallel to and symmetrically across the plane 721. The pressure air passages are provided in the body of splicing head 702 such that end walls 719a and 719b each extend perpendicular to the longitudinal axis of each pressure air passage. In the illustrated embodiment, end walls 719a and 719b forming flow baffles for incoming pressurized air 722' and 722# are aligned with longitudinal axis 717a or 717b.
ends where it collides with the wall of the longitudinal groove 707. However, an arrangement of the splicing channels at an angle to the plane 721 is also possible.

Furthermore, the end wall may terminate, viewed in the flow direction of the compressed air, before the intersection of the respective longitudinal axis of the splicing channel and the wall of the longitudinal groove.

With this configuration, each pressure air inlet becomes small. However, in any case, the walls opposite the longitudinal axis of the longitudinal groove, in the illustrated embodiment walls 718a and 718b, must end inside the body of the splicing head.

By means of flow baffles 719a and 719b, the pressurized air is deflected and flows in the course indicated by arrows 722a' and 722a'', respectively. In this embodiment, too, therefore:
Two opposite vortices are generated, in which case the pressure air flowing out from the pressure air blowing lower 15a forms an air vortex rotating in a counterclockwise direction, and the pressure air flowing out from the pressure air blowing lower 15b forms a counterclockwise rotating air vortex. Forms an air vortex rotating in a clockwise direction. The two air vortices are directed in opposite directions and are arranged one above the other. Due to the position of the pressurized air inlet, the splicing head illustrated here is suitable for splicing double-ply yarns or twisted yarns. By arranging the pressurized air inlets with their placement sides interchanged, the splicing head becomes suitable for splicing figure-5 yarns or twisted yarns.

The embodiments described above merely illustrate some possibilities for the arrangement of the pressure air channel or channels in the splicing head and the configuration of the pressure air inlets made possible thereby. For example, it is also possible to select the following combination of pressurized air inlets.

That is, the pressurized air impinges on a flow baffle formed by an end wall perpendicular to the longitudinal axis of the pressurized air passage, and the end wall of the other pressurized air passage is arranged at an angle to the axis. A configuration is also possible in which the pressure air channel tapers conically in the direction of the longitudinal axis of the pressure air channel. The configuration of the pressurized air inlet and its position define the outflow direction of the pressurized air and the vortex flow produced thereby. By combining pressurized air inlets with different arrangements and configurations, it is possible to obtain a splicing head with which yarns or threads that are difficult to splice can be easily spliced.

[Brief explanation of drawings]

FIG. 1a is a sectional view showing a first embodiment of a splicing head in a splicing apparatus according to the present invention, Mlb
1a is a cross-sectional view of the splicing head shown in FIG. 1a in a plane passing through the longitudinal axis of the longitudinal groove;
2 is a sectional view showing a second embodiment of the splicing head, FIG. 3 is a sectional view showing a third embodiment of the splicing head, FIG. 4 is a sectional view showing a fourth embodiment of the splicing head, and FIG. The figure is a sectional view showing a fifth embodiment of the splicing head, Figure 6a is a diagram showing a sixth embodiment of the splicing head, and is a cross-sectional view taken along the line ■-■ in Figure 6b, and Figure 6b is a cross-sectional view showing the fifth embodiment of the splicing head. 7 is a cross-sectional view of the splicing head shown in FIG. 6a along the line Vl-Vl.
Figure a is a cross-sectional view showing a seventh embodiment of the splicing head, and Figure 7b is a cross-sectional view taken along the line ■-■ in Figure @7a. 2.202,302,402,502,602.702
...splicing head, 7,207.307,4
07,507,607,707...Longitudinal groove, 15
,215,315,415515.615a,615b
, 715a, 715b...pressure air inlet, 16,
216, 316.416, 516.616a, 616b
. 716a, 716b - pressure air passage, 18,218.3
18,418.518.618a, 618b, 718a
, 718b=-wall, 19,219, . 319,419,
519.619a, 619b, 719a,
719 b--end wall, 2o, 220.320,420
, 520, 620, 720... longitudinal axis, 21,
221,321,421.521,621.721...
・Flattening Rijin

Claims (1)

[Claims] 1. A splicing device equipped with a splicing head, the splicing head having a longitudinal groove for splicing two yarn ends using pressurized air, and a splicing device in the longitudinal groove. An insertion slit for inserting the yarn end and at least one pressurized air inlet opening into the longitudinal groove is provided, so that the incoming slit air partially flows on entry into the longitudinal groove. In the type that collides with the obstruction, the pressure air inlet (15, 215, 315, 415, 515, 615
pressure air passages (16, 216, 316, 416, 516, 616) leading to
a, 616b, 716a, 716b) are splicing heads (2, 202, 302, 402, 502, 602
, 702) as follows, namely, the longitudinal grooves (7, 207, 307, 407, 50) of the pressure air passage.
7, 607, 707) longitudinal axis (20, 220,
320, 420, 520, 620, 720) and the opposite wall (18, 218, 318, 418, 518, 618)
a, 618b, 718a, 718b) terminates inside the body of the splicing head, and
End walls of pressure air passages (19, 219, 319, 419,
519, 619a, 619b, 719a, 719b) and the wall of the longitudinal groove are provided so as to penetrate each other. 2. Multiple pressure air passages (616a, 616b; 716
a, 716b) and a pressurized air inlet (
615a, 615b; 715a, 715b) along the longitudinal axis (620, 72) of the longitudinal groove (607, 707).
2. The splicing device according to claim 1, wherein the splicing device is arranged axially spaced to the left and right of a plane (621, 721) extending through 0). 3. Pressure air passage (16, 216, 316, 416, 5
16, 616a, 616b, 716a, 716b) are configured as holes, which holes form the longitudinal grooves (7, 20
7, 307, 407, 507, 607, 707) and the necessary pressurized air inlet (15, 215, 31)
5, 415, 515, 615a, 615b, 715a,
After forming the splicing head (2, 715b)
3. The splicing device according to claim 1 or 2, terminating in the body of the splicing device (202, 302, 402, 502, 602, 702). 4. The flow baffle is connected to the pressure air passage (16, 216, 31
6, 416, 516, 616a, 616b, 716a,
716b) end walls (19, 219, 319, 419, 5
19, 619a, 619b, 719a, 719b). The splicing device according to any one of claims 1 to 3. 5, Pressure air passage (216, 316, 716a, 716
The end walls (219, 319, 719a, 719b) of b) are connected to the longitudinal axis (217, 317, 71
7a, 717b). 5. The splicing device according to claim 4, wherein the splicing device is located perpendicularly to the splicing device 7a, 717b). 6. Pressure air passage (16, 416, 516, 616a,
616b, ) end wall (19, 419, 519, 619a
, 619b) are longitudinal axes (17, 417, 517
, 617a, 617b), conically tapering in the direction of ., 617a, 617b).