JPS63126948A - Batten for loom - 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 Field of Industrial Application The present invention relates to a button for a loom, particularly a pneumatic loom, which can be fixed to a swing shaft rotatably attached to a loom frame and a swing shaft 71 of the loom. A hollow girder-like recessed beam is provided, and the recessed beam has a web portion having a box-like cross section and a head portion in which a vertical groove is formed. It relates to a type that is equipped with a member that fixes the J3 that is inserted into the J3.

PRIOR ART AND THE PROBLEM TO BE SOLVED BY THE INVENTION In the above-mentioned known type of reed for pneumatic looms, an extruded hollow reed beam has two journals fixed at its ends. (Swiss Patent No. 630,671). This type requires the reed beam to be a rigid structure over the working width of the loom, and the beam at the same time has compressed air inlets of the blower nozzles distributed over its length, so that it has a relatively small cross-section. It's complicated.

The object of the invention is to further develop the known type and to obtain a button of simple construction. In other words, the batten allows the reed beam to hold the sheath and possibly other implements involved in weaving the fabric, especially in a lightweight construction independent of the loom working width. There is a particular thing.

According to the invention, this object is solved by the following. That is, the pivot shaft has a rigid hollow shaft section extending approximately over the working width of the loom, and also the recess beam in the form of a hollow girder is non-self-supporting over its length under working loads. It is constructed as a piece and has two flanges which project from the box-shaped cross-section of the wear part on both sides and which are attached to the hollow shaft and can be connected thereto. These flanges also
Extends approximately the length of the garment.

This new configuration of the button allows both the supporting hollow shaft and the reed beam, which is arranged on the shaft and is pressed without deflection over its entire length, to be thin-walled. In the case of a high predetermined installation of the axis of the pivoting shaft, the overall height of the dowel beam is correspondingly low due to the comparatively large diameter of the hollow shaft section, which is designed to be bend-resistant. In addition, an operationally safe connection of these structural parts subjected to high dynamic loads is achieved by supporting relatively wide, optionally flexible, configurable reed beams over their entire length on rigid hollow shaft sections. and a high torsional strength of the structural unit formed thereby is guaranteed.

A batten with a reed holder attached to a hollow shaft is known per se from Swiss patent specification no. The head part is missing. The longitudinal groove for receiving the reed is formed in the rail-like holding part, which is thick and therefore correspondingly heavy.

This holding part is fixed directly to the hollow shaft via the side flanges. This known arrangement results in a relatively heavy construction of the reed, especially in the case of weaving machines where the reed is located relatively far from the hollow shaft.

Embodiments according to the invention are described in the claims.

In the embodiment according to claim 2, the reed can be a lightweight construction with a very thin wall thickness. Since this structure does not bend under load over its entire length, it is only necessary to construct the beam cross-section so that it has sufficient torsional strength to withstand the working loads that occur, especially during hammering.

In the embodiment of patent claim 4, the equipment necessary for supporting and/or driving the button can be arranged freely over the entire working width of the loom.

As claimed in claim 5, the head part of the reed beam has a total length that is independent of, for example, the length of the structurally related web, and according to claim 6, can be configured to have a total length that is independent of the working width.

In the embodiment according to claim 8, the contact surface between the wear part and the hollow shaft part can be kept small. As a result, on the negative side, it is possible to keep the machining costs for adapting the surface that can be placed on the hollow shaft part to a low level, and on the other side, it is possible to reduce the risk of rust occurring in the fitting part of the cooperating surfaces. You can also do that.

In a particularly preferred embodiment of claim 9 in this respect, a strip-like mounting portion of the flange portion, which can be brought into close contact with the outer surface of the hollow shaft portion, is used to hold the reed. The forces from the mounting are introduced particularly gently into the hollow shaft part via four contact points that are offset from one another in the circumferential direction of the hollow shaft and extend approximately linearly. As a result, deformation is prevented even if the hollow shaft portion is constructed with thin walls.

Example Next, embodiments of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, the button 1 is placed between the two sides 2, 3 of the loom frame, which are partially shown. This baton 1 has a turning shaft 5, a reed beam 6, and a reed 7. The pivoting shaft 5 comprises a hollow shaft section 8 extending over the working width of the loom and two journals 10.
10a. Journal 10 is rotatably journaled within side 2. The journal 10a is connected via a coupling 9 to a shaft 9 of a known drive for pivoting the button 1. The shaft 9 is journaled in the side 3. The reed beam 6 is the head part 11
This web part 12 is provided with a flange part 13 that protrudes laterally in the circumferential direction of a portion of the hollow shaft 8 and that can be placed on the hollow shaft part 8. The flange portion 13 is fixed to the hollow shaft 8 by screws 14.

In FIG. 2, the web 12 is constructed in the form of a hollow girder with a box-shaped cross section. This cross section is formed by two side walls 15 connected to the head part 11, two transverse walls 16, 17 joining these side walls and a diagonal buttress 18. This buttress 18 has two hollow chambers 20 extending -C over the entire length of the web section 12.
．． 21 are separated from each other. The lower lateral wall 17 connects the flange parts 13 to each other, is configured as a recess, and extends along the outer surface of the hollow shaft part 8 at a distance A. .

On the surface of the flange portion 13 facing the hollow shaft portion 8,
A groove-like recess 22 is formed in each case. This recess 22 is formed between the strip-shaped placement parts 23 and 24.
3. These mounting parts 23 and 24 are attached to the hollow shaft part 8.
It can rest on the outer surface of the recess and extends over the longitudinal extent of the recess.

In particular, as can be seen from FIG.
be equivalent to. The upper lateral wall 16 separates the knee part 12 from a cavity 20, which has a cavity 25 passing through the head part 12 over its entire length.

The head portion 12 has a vertical groove 2 extending along its entire length.
6 is formed and -C is present. This vertical groove is located at the base 2 of the reed 7.
7 or a single clamping piece 28 which can be applied to the base 27 or a plurality of clamping pieces distributed correspondingly over the entire length of the longitudinal groove [
) is configured to receive the piece 28. One or more fastening pieces 28 are fastened to the base 27 and to the side surfaces of the vertical grooves 26 by respective corresponding pieces 28a and screws (not shown). The reed 7 has a plurality of reed blades 30 distributed over the working width of the loom in a known manner. The comb blade 30 is connected within the base 27 with a piece of connecting rod 31 . The reed 7 is held in the working position in the head part 11 by one or more clamps #j')'+''' 28.

The illustrated button 1 is for use in a loom that performs pneumatic weft feeding. 3 In this case, a guide channel 32 for the weft thread (not shown) is formed in the reed 7 by means of a recess provided in the reed blade 30 in a known manner. The weft is formed in the area of the weft 7 from a weft bobbin (not shown) disposed outside the weft thread, and passes through a weft input nozzle 33 disposed at the end of the head section 11 of the weft beam 6 and a guide tube 34. Guided by. By supplying compressed air to the weft inlet nozzle 33 and to a plurality of relay nozzles 39 (FIG. 2) distributed over the entire length of the reed 7, the weft is in each case passed through the guide channel 32 and introduced into the channel. is,
It is guided to the slot 1 to the retching nozzle 35 arranged at the other end of the head section 11. The introduced weft yarn is stretched by this nozzle 35 and struck against the edge of the fabric by the pivoting movement of the button 1 in the direction of an arrow 36 (FIG. 2) about the axis of the pivot shaft 5.

Although the arrangement of the relay nozzle 39 is not a subject of the present invention,
As can be seen from FIG. 2, the inclined side wall portion 1 of the head portion 11
1a, it can be attached via a tightening piece 43 and a screw (not shown). The weft input nozzle 33 and the stretching nozzle 35 are also located in the side wall portion 11a.
As shown in FIG. 1, it can be arranged in a longitudinal groove 26 and the corresponding tightening can be adjusted in the longitudinal direction of the head part 11, for example by means of a piece 28, as shown in FIG.
Moreover, it can be adjusted to accommodate the reed 7 used from time to time.

As shown in FIG.
2 has at its end a cutout 37,38 which is open towards the hollow shaft part 8 and has at least one further cutout 40 in its longitudinal extension. . The notches 37, 38 are arranged upwardly in the 11 portions 1 and 1, respectively.
Extensions 11b, 11cl, exceeding the longitudinal extension of 2:J
：ri limit zu [being hit. These extensions 11b, 11
C may also extend above the adjacent tan frame portions 2,3. With this type, the weft input nozzle 33 and the thread input nozzle 33 and the threads 1 to 1 are
It becomes possible to adjust the retching nozzle 35 depending on the length of the reed 7 used in each case.

In the area of the recess 40 formed in the web part 12, for example in its center, there are hollow shafts 71 to the bearings of the part 8 (
A needle bearing) 41 is arranged.

A pivoting drive of the button 1, not shown, can also be mounted on the hollow shirt 1-8 in the corresponding recess 40. In that case, unlike the format shown in Figure 1,
For example, the journal 10a can also be mounted in the side part 3. In a further embodiment, in particular in the case of looms with a wide working width, the two journals 10.10a can each be connected to the drive of the button 1.

By means of this drive, the reed 7 is guided in a known manner in each case in the direction of arrow 36 (FIG. 2) from the weft thread entry position towards the fabric edge and then returned to the weft thread entry position in the direction of arrow 36a.

The hollow chamber 25 passing through the head part 11 can be connected to a suction pipe 29 and communicated with a device 42 for sucking in the weft threads that are not introduced. According to Swiss Patent Specification No. 630,671 mentioned at the outset, the hollow chamber 25 is designed as a compressed air container into which the weft thread input nozzle 3 is inserted.
3. Stretching nozzle 35, Relay nozzle 39
All or any of them may be connected. It is also possible to design at least one of the hollow spaces 20.21 as an air guide channel. In this case, the hollow chamber 20
．． 21 is sealed in the area of notches 37, 38, and 40.

The reed beam 6 is preferably made from a drawn one-piece bar of light metal and can be constructed with correspondingly thin walls. With this type, apart from the formation of the recesses 37, 38, 40 and the holes for the screws 14, no further machining of the profile bar is necessary. The hollow shaft part 8, preferably made of steel, can have a relatively large diameter so as to provide sufficient bending and twisting strength even in the case of thin-walled versions. The four strip-like mounting parts 23, 24 of the flange part 13 transmit the fixing force to the hollow shaft part 8 with a slight local load, so that deformation of the shaft part 8 is prevented even in the case of a thin-walled configuration. Ru.

The batt according to the present invention can also be applied to projectile looms, gripper looms, and looms of other types of structure and operation. The web section 12 of the reed beam 6 can also be provided with flange sections 13 that are segmented over its entire length and/or are arranged offset from one another. The reed beam 6 can also be constructed in other ways, for example by a shaped bar produced by extrusion. It is also possible that the head portion and the web portion are formed by connecting separate shaped members.

[Brief explanation of the drawing]

Fig. 1 is a view of the button for a loom according to the present invention as seen from the fabric side of the loom, Fig. 2 is an enlarged sectional view taken along line II-II in Fig. 1, and Fig. 3 is a partial enlargement of Fig. 2. It is a diagram. In the figure, 1... Slam, 2, 3... Frame of the loom, 4... Drive device, 5... Swivel shaft, 6
... Reed beam, 7 ... Reed, 8 ... Hollow shaft part, 12 ... Wear part, 23.24 ... Placement part, 28 ... Tightening is one piece, 28a.・Corresponding piece, 30・
... Reed feather, 31 ... Connection rod, 33 ... Weft thread input nozzle, 35 ... Stretching nozzle, 37.
38...Cutout, 41...Shaft bearing.

Claims (9)

[Claims] (1) A button for a loom, especially a pneumatic loom, also a pivot shaft (5) rotatably attached to the loom frame.
) and a recessed beam (6) configured in the form of a hollow girder, which can be fixed to this shaft (5), and which beam (6) has a box-shaped cross-section and a web section (1).
2) and a head portion (11) with vertical grooves (26) formed therein.
This head portion (11) has a vertical groove (
26) A member (2) for fixing the reed (7) that can be inserted into the
8), in which the swivel shaft (5) has a rigid hollow shaft part (8) extending approximately over the working width of the loom and also has a hollow girder-shaped receptacle. The beam (6) is constructed over its entire length as a non-self-supporting component under operating loads and has two flange sections (13) which are connected to the web section (12). The flange portions (13) protrude on both sides from the box-shaped cross-sectional portion and can be placed on and connected to the hollow shaft portion (8), and furthermore, these flange portions (13)
A button for a loom, characterized in that the button extends over almost the entire length of the web portion (12). (2) A button according to claim 1, characterized in that the reed beam (6) is formed of a drawable rod. (3) the reed beam (6) has at least one notch (37, 38, 4) formed in the area of the web portion (12);
0), the recess extending over the longitudinal section of the pivot shaft (5) and being open towards this longitudinal section. The punch described in any one of the above items. (4) A cutout (40) is formed between the two longitudinal sections of the web part (12) and is adapted to receive one part of the slam mechanism (support bearing 41) and is adapted to receive one part of the slam mechanism (support bearing 41).
1) in the area of the cutout (40), the hollow shaft part (8
) The button according to claim 3, wherein the button can be attached to a button. (5) both or at least one of the notches (37, 38) are formed in one end of the reed beam (6) and extend beyond the length of the web portion (12);
11b, 11c). 11b, 11c). 11b, 11c). 11b, 11c). (6) Head portion (1) protruding from web portion (12)
Both ends (11b, 11c) or at least one end (11b) of 1) are connected to the adjacent loom frame part (
2) The button according to claim 5, wherein the button extends at least partially above the button. (7) At the head portion (11) of the reed beam (6), there is an air nozzle (31) for weft feeding adjacent to the reed (7).
, 35) are provided, and these air nozzles (31, 35)
is arranged at an end section (11b, 11c) of the head section (11) of the reciprocal beam (6) beyond the longitudinal extension of the web section (11); ) The button according to any one of claims 5 or 6, characterized in that the button is fixed within the inside. (8) The web portion (12) of the reed beam (6) is provided, on its outer surface facing the hollow shaft portion (8), in a position between the flange portions (13), along the entire length of the web portion (12). Claim 1, characterized in that a recess extending across is formed, the bottom of which is located at a distance (A) from the outer surface of the hollow shaft part (8). The punch described in any one of paragraphs 7 to 7. (9) Each flange portion (13) has two strip-shaped placement portions (23, 24);
, 24) are formed offset from each other in the circumferential direction of the hollow shaft part (8) and act on the formed surface of the hollow shaft part (8) and substantially over the entire length of the respective flange part (13). 9. A button according to claim 8, characterized in that they extend across and are separated from each other by groove-like recesses (22).