JPH0730699Y2 - Warp break automatic stop device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an apparatus for electrically and automatically stopping a loom when a warp break occurs in the loom.

(Prior Art) As an electric stop method for detecting warp breakage in a loom, one is an electric stop method using a dropper and a contact bar, that is, a conductive dropper,
Combining an integrated contact bar with positive and negative poles via an insulator, the conductive dropper suspended in each warp thread of the loom is dropped when the warp thread breaks, and the contact bar Contact between the positive and negative poles to stop the loom, and one is to install another device under the contact bar or dropper to stop it electrically, that is, the conductive dropper and contact bar. A feeler net that horizontally oscillates in the direction perpendicular to the longitudinal direction of the contact bar is installed under and to allow currents having opposite polarities to flow between the contact bar and the feeler net. Since it is suspended in the state, it remains in contact with the feeler net, but warp breakage occurs. The method stops the loom in contact energized to contact bar contacts with the feeler net dropper may fall with or Utility Model 63,
As disclosed in Japanese Patent Laid-Open No. 64791, a detection member that moves between the warp row widths along the longitudinal direction of the dropper row is provided under the dropper row, and an electric stop is generated by energization between the dropped dropper and the detection member. There are many methods and the like, and many of these methods employ one or both of them.

(Problems to be solved by the invention) However, in the former case, if the dropper is used for a long period of time, rust may occur or glue may adhere to form a film, making it difficult for the contacts to energize and reducing the stop sensitivity. As a result, there is a problem that woven fabric defects such as yarn end weaving and warp breakage occur, and in the latter case, it is necessary to lower the warp line to reduce weft breakage troubles when weaving fabrics such as warp satin design. However, when the beam diameter is becoming LP as in today's day, providing a feeler net or a detection member under the dropper limits the warp line lowering degree, and it is not possible to take effective measures to reduce weft breakage troubles. is there. The present invention provides a device intended to eliminate such inconvenience.

(Means for Solving the Problem) According to the present invention, an inside plate and an outside plate having electrodes opposite to each other are interposed through an insulator in a through hole of a conductive dropper suspended while being inserted in each warp of a loom. The integrated contact bar penetrates and the conductive dropper falls due to warp breakage, the dropper contacts the inside plate and the outside plate of the contact bar, and the plus pole and the minus pole are conducted to stop the loom. In the device, the contact bars described above are attached to a rocking block in a plurality of rows parallel to the direction crossing the warp, and the rocking block is mounted by a rocking device, for example, a rocking device composed of a crank device and a rocking motor. Set horizontally across the warp Swing with a stroke while operating the loom, and drop due to warp breakage The dropper was rubbed with a contact bar to remove the rust and glue dregs coating the dropper, and the electric stop worked more reliably. Grooves of equal pitch were provided on the upper surface of the above-mentioned inside plate, and the swing stroke was set to be slightly larger than the length of this groove, so that the rust and glue cake coated on the dropper were not only scraped off but dropped. The dropper fits in the groove to increase the contact surface with the inside plate, and the contact surface is pressed by the groove end surface of the inside plate so that the electric stop operates more reliably.

(Function) By horizontally swinging the contact bar in the direction that crosses the warp using an oscillating device, the rust and glue lees that coat the conductive dropper that has dropped due to the warp breakage are rubbed and peeled off, and the current is applied. Not only the action is good, but also because the groove is provided on the inside plate, the contact area between the dropped dropper and the inside plate is increased and the contact surface is pressed, more accurate energization is achieved and the electric stop To ensure more.

(Embodiment) Referring to the drawings showing an embodiment of the present invention, FIG. 1 is a perspective view showing an appearance of a contact bar rocking device, and FIG. 2 is a sectional perspective view showing a cross section of the contact bar. is there. In FIG. 1, (1) is a contact bar, and as shown in FIG. 2, the contact bar (1) has an inside plate (2) and an outside plate (4) having opposite electrodes, and an insulator (3). Are formed integrally with each other, and grooves (2A) (2A) of equal pitch are provided on the upper surface of the inside plate (2). Then, as shown in FIG. 1, the contact bar (1) is inserted into the through hole of the conductive dropper (8) suspended in a state of being inserted into each warp (not shown) of the loom, and a plurality of the contact bars (1) are inserted. The warps are arranged in parallel to each other in a direction traversing the warp, and are fixed in parallel at both ends by rocking blocks (5). A crank device (7) connected to an oscillating motor (6) is coupled to the oscillating block (5), and each contact bar (1) is rotated by the rotation of the motor (6) through the crank device (7). (1) is horizontally oscillated in a direction traversing the warp. The swing stroke of the contact bar (1) (1) is adjusted by the crank device (7), and in this embodiment, the groove (2) of the inside plate described above is adjusted.
It is set slightly larger than the length in A).

Next, the operation procedure of the automatic warp breakage stopping device will be described. The contact bars (1) and (1) are horizontally swung in a direction traversing the warp at least during operation of the loom. When the conductive dropper (8) suspended in a state of being inserted into each warp of the loom falls due to a warp break, the drop dropper (8) is rubbed on the contact surface with the contact bar by the swinging contact bar (1). The rust and glue residue coated on the dropper are peeled off, the conductivity is improved, and the electric stop works well to stop the loom surely. Further, by setting the swing stroke larger than the length of the groove (2A), the drop dropper (8) further falls into the groove of the inside plate (3), so that the dropper (8) has only the inner surface with respect to the side plate (3). Not only does it contact the side surface, but the contact surface increases, and since the movement of the drop dropper (8) is restricted by the droppers on both sides where the warp thread is inserted, the contact is caused by the swing of the contact bar (1). The surface will be pressed, and the electric stop will work more reliably.

(Effects of the Invention) As described above, the automatic warp breakage stopping device according to the present invention includes an inside plate and an outside plate having electrodes opposite to each other in through holes of a conductive dropper suspended while being inserted into each warp of a loom. Are pierced by an integrated contact bar via an insulator, a plurality of the contact bars are arranged parallel to each other in a direction crossing the warp and fixed to a block at both ends thereof, and a swinging device is coupled to the block. Since the contact bar is horizontally oscillated in the direction that crosses the warp during operation of the loom, it is not necessary to install a feeler net or a detection member under the dropper, so the adjustment of raising and lowering the warp line is limited. This is effective in reducing weft breakage troubles, and the contact bar is set in the direction that crosses the warp. Since it oscillates with a different stroke, the rust and glue dregs coated on the dropper will be rubbed off by the contact bar, and the electric stop motion will work reliably to stop the loom properly when the warp breaks. Exerts the effect.

[Brief description of drawings]

FIG. 1 is a perspective view showing the outer appearance of the contact bar rocking device, and FIG. 2 is a sectional perspective view showing a cross section of the contact bar. (1) is contact bar (2) is inside plate, (2A) is groove (3) is insulator (4) is outside plate (6) is swing motor (7) is crank device (8) is conductive Dropper

Claims (1)

[Scope of utility model registration request] 1. A contact bar in which an inside plate and an outside plate having electrodes opposite to each other are integrated via an insulator in a through hole of a conductive dropper suspended in a state of being inserted into each warp of a loom. A plurality of the contact bars are pierced through and arranged in parallel in the direction crossing the warp and fixed to blocks at both ends thereof, and an oscillating device is connected to the block to horizontally oscillate the contact bar across the warp. In the warp break automatic stopping device configured to be capable of, the contact bar is configured to be horizontally swingable in a direction crossing the warp during operation of the loom by the swing device, and a groove is provided on the upper surface of the inside plate.
An automatic stopping device for warp breakage, characterized in that the grooves have an equal pitch and the length of the grooves is shorter than the horizontal swing distance.