JPH06299449A - Knitting and braiding machine - Google Patents

Abstract

PURPOSE:To provide a knitting and braiding machine designed so as to stably keep an oil membrane on each sliding surface of the slider and the guide rail and not requiring oil supply for a long period. CONSTITUTION:This invention is related to a knitting and braiding machine equipped with a turn table having a lower bobbin and with a slider 5 incapable of coming off from a guide rail 4 set along the periphery of the turn table and having an upper bobbin (B2) engaged therewith so as to move through plural sliding surfaces in the opposite direction. In this knitting and braiding machine, the slider 5 is equipped with a lubricant supply tank 54 and with an applicator unit capable of applying a lubricant (J) allowed to seep from the lubricant supply tank to the sliding surface. Thereby, the lubricant is supplied directly to a desired sliding surface to keep an oil membrane even if the machine is at work.

Description

Detailed Description of the Invention

[0001]

This invention relates to a braided shield wire,
The present invention relates to an improvement of a braiding machine for producing a tubular braid at high speed, which is used for a cable, a hose, etc. using a fiber as a base material.

[0002]

2. Description of the Related Art Generally, a braiding machine of this type cannot be separated from a rotary table having a lower bobbin and a guide rail provided around the rotary table, and can run in reverse through a plurality of sliding surfaces. A slider having an upper bobbin operably engaged is provided. Then, the swing arm provided on the carrier of the lower bobbin moves the braided wire of the lower bobbin up and down with respect to the traveling path of the slider, so that the lower yarns (braided wire of the lower bobbin) run in reverse to each other. The upper yarn (braid line of the upper bobbin) is alternately crossed so that a tubular braid can be manufactured (FIG. 6).

Here, the slider on which the carrier of the upper bobbin is mounted is inseparably engaged with the guide rail via a plurality of sliding surfaces including at least the inner peripheral surface and the lower surface of the guide rail, and the slider is in the circumferential direction. You can only move to. That is, the slider is configured so that it does not jump out due to centrifugal force during traveling or lateral shake. In this case, for lubrication of the sliding surface, the lubricating oil is directly supplied (sprayed or drip) from the outside of the rotary table to the upper surface of the guide rail in a stationary state, and to the other sliding surface, By supplying by diffusion from the upper surface, the oil film on each sliding surface was retained.

[0004]

The above-mentioned conventional braiding machine is
The function of retaining the oil film on the slider and guide rail was to provide a narrow shallow groove that also functions as an oil reservoir on the sliding surface.
Therefore, there is a drawback in that lubrication may be poor during operation. That is, in the conventional machine, the upper surface of the guide rail is directly replenished from the outside, but when the rotary table starts to rotate, the lubricating oil that adheres to the upper surface of the guide rail penetrates and develops from the end of the sliding surface of the slider that runs backward on the guide rail. Only the oil contributed to the formation of the lubricating oil film, and the rest was shaken off by the centrifugal force, and the oil film could not be retained for a long time. As a result, the sliding surface may be rapidly worn away, or black contaminated oil containing abrasion powder may be scattered to stain each part of the braiding machine or the braided wire.

Further, the structure in which the lubricating oil is replenished from the outside of the rotary table has a problem that the main body structure becomes complicated and the amount of oil that can be stored cannot be increased. For this reason, in order to prevent the occurrence of oil film shortage troubles, the braiding machine must be frequently stopped and replenished in a short cycle, which causes a decrease in productivity. In view of the above points, an object of the present invention is to provide a braiding machine that can stably hold an oil film on each sliding surface of a slider and a guide rail and does not require replenishment for a long time.

[0006]

In order to achieve the above object, a braiding machine of the present invention has a rotary table having a lower bobbin and a plurality of guide rails which are provided around the rotary table and which cannot be separated from each other. In a braiding machine comprising a slider having an upper bobbin engaged so as to be capable of traveling in the reverse direction through the sliding surface, a slider is provided with a lubricating oil replenishing tank, and the lubricating oil leached from the replenishing tank is The sliding surface is provided with a coating means that can apply the lubricating oil directly to a desired sliding surface so that the oil film can be retained even when the apparatus is in operation.

[0007]

The lubricating oil filled in the replenishing tank before operation is absorbed by the felt, which is the application means, and then comes into contact with the sliding surface of the guide rail and the slider directly from the felt or through the oil groove. When the rotary table starts to rotate, the slider travels backward along the guide rail, and the coating means attached to the slider starts coating on the sliding surface. At this time, since the coating means replenishes within the gap surrounded by the slider and the guide rail, scattering due to centrifugal force is suppressed to a minimum. The replenished lubricating oil is directly applied to the inner and upper and lower surfaces of the guide rail, and is also replenished to the outer peripheral surface of the guide rail through the oil groove. Is stably formed and held.

Since the remaining amount of lubricating oil in the replenishment tank can be visually recognized from the outside, it can be known early if the amount is small, and it is possible to take advance measures. Further, even if the remaining amount becomes zero, the felt as the coating means is impregnated with the lubricating oil, and the coating can be continued for several hours. The lower bobbin rotates together with the rotary table, and the upper bobbin slider runs in the opposite direction along the guide rails provided around the rotary table. At this time, the swing arm that feeds the braided wire of the lower bobbin moves the tip of the swinging arm up and down within a predetermined angle range with respect to the slider to move the braided wire of the lower bobbin to the slider (the braided wire of the upper bobbin. Swing up and down with respect to the traveling path of (feeding). As a result, the braided wire of the lower bobbin and the braided wire of the upper bobbin, which run in opposite directions, intersect with each other, and a tubular braided body is produced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the accompanying drawings. 1 is a perspective view showing a braiding part of the braiding machine of the present application, FIG. 2 is a side view showing a positional relationship between an upper bobbin carrier and a lower bobbin carrier, FIG. 3 is a perspective view showing an arrangement of a slider and a guide rail, and FIG. 4 is a slider. And FIG. 5 is a cross-sectional view showing the relationship between the coating means and the sliding surface.

In the figure, reference numeral 1 is a rotary table, and the rotary table 1 is constructed such that lower bobbin carriers 2 are equidistantly arranged on the outer peripheral portion thereof and can rotate at a high speed in a fixed direction. A core material S (cable core wire or the like) that is continuously fed from the bottom to the top is arranged on the central axis of the rotary table 1, and while winding a braid wire around the core material S, a tubular braid is formed. It can be manufactured.

The lower bobbin carrier 2 is a lower bobbin B1.
A swing arm 3 for feeding the braided wire H1 (hereinafter, also referred to as a lower thread) fed from the braided wire H1 (hereinafter, also referred to as a lower thread) of the upper bobbin B2 to the core material S while braiding it ing. The structure of the swing arm 3 will be described later.

Reference numeral 4 is a guide rail.
Is provided around the rotary table 1, and a slider 5 provided with an upper bobbin carrier on the upper side thereof is non-detachably engaged via a plurality of traveling sliding surfaces. That is, the guide rail 4 is composed of a member having an L-shaped cross section in which a horizontal traveling rail 4B is arranged on an upper portion of a standing wall 4A provided around the rotary table 1, and the slider 5 is provided on the upper and lower surfaces of the traveling rail 4B and inside and outside. It is engaged so as to be in contact with each other through five sliding surfaces of the peripheral surface and the inner and outer peripheral surfaces of the standing wall 4A (the outer peripheral surface is common to the outer peripheral surface of the traveling rail 4B).

Here, the slider 5 is, as shown in FIG.
The carrier slider 51 is on the upper side, and the segment gear 5 is on the lower side.
The traveling rail 41, which is composed of two members No. 2 and 2 and extends horizontally from the upper surface of the guide rail 4, is sandwiched between the carrier slider 51 and the segment gear 52 from above and below in a sandwich shape to be fixed. It is possible to realize an engaged state that is movable only in the direction.

A replenishment tank 54 is placed on the upper part of the carrier slider 51 so that the lubricating oil J inside can be impregnated into the oil impregnated felt F embedded in the lower segment gear 52 in a sufficient volume. Has become. The oil-impregnated felt F
However, it serves as the base of the coating means for supplying lubricating oil to the sliding surface. Further, an oil groove 51A is provided on the lower surface of the carrier slider 51 (sliding surface with the upper surface of the traveling rail 4B), and the lubricating oil F of the oil impregnated felt F is supplied to the traveling rail 4B.
It is designed to spread over the entire upper surface of the.

A tooth surface 52A meshing with the bevel gear 53 is formed on the lower surface of the segment gear 52 so that the rotation of the bevel gear 53 can be transmitted and the slider 5 can run in the direction opposite to the rotary table 1. Has been done. The replenishment tank 54 is composed of a transparent or translucent member so that the lubricating oil inside can be visually recognized from the outside, and the surface thereof has a scale (indicator, not shown) for measuring the remaining amount of oil. No) is provided.

With respect to the slider 5, the guide rail 4 has a braided wire H1 (lower thread) fed from a lower bobbin B1 and a braided wire H2 (lower thread) fed from an upper bobbin B2. (Also referred to as “notch”) is provided in the vicinity of each swing arm 3 with a cutout groove 6 for retreating to the lower side. That is, by winding the lower yarn H1 which rotates while moving up and down by the swing arm 3 and the upper yarn H2 which runs in the opposite direction around the core wire S while alternately intersecting with each other, the tubular braid can be braided. Has become.

The swing arm 3 is constructed such that a rotary shaft 31 provided at the lower end of the swing arm 3 is pivotally supported by the hole 7a of the fixed frame 7 and can rotate within a predetermined angle range. That is, the pin 32 is provided on the outer surface of the swing arm 3.
And the pin 32 is fitted into a cam groove of a cam wall C provided along the outer circumference of the rotary table 1. When the rotary table 1 rotates, the pin 32 moves up and down along the cam groove of the cam wall C, and the swing arm 3 moves.
It is adapted to rotate about the rotation shaft 31. Further, the rotating shaft 31 is provided with a guide roller 8, and the lower thread H1 fed from the lower bobbin B2 is brought into contact with a contact point P with the guide roller 8 to be curved, thereby The H1 can be fed to the tip of the swing arm 3.

In the above embodiment, when the lower bobbin carrier 2 for feeding the lower thread rotates together with the rotary table 1,
The slider 5 that feeds the upper thread H2 runs in the opposite direction along the guide rail 4. Here, the swing arm 3 for drawing out the braided wire (lower thread) H1 fed from the lower bobbin.
Moves up and down at an appropriate timing to move the slider 5 to the upper position.
The upper thread H2 of the slider 5 travels above the lower thread H1 and the upper thread H2 of the slider 5 travels above the lower thread H1 at a lower position (a state where the lower thread H1 is passed through the cutout groove 6 of the guide rail 4). Therefore, the upper thread H2 and the lower thread H1 are wound around the core material S while being alternately crossed.

At this time, the sliding force between the guide rail 4 and the slider 5 is subjected to the frictional force doubled by the centrifugal force accompanying the high speed running, but the running rail 4 under the maximum pressure is applied.
Since the lubricating oil is directly applied to the inner peripheral surface of B and the inner peripheral surface of the standing wall 4A from the felt F which is the application means, there is no risk of the oil film running out. In addition, the felt F is also attached to the upper and lower surfaces of the traveling rail 4B where the oil film is easily broken due to centrifugal force.
The lubricating oil is directly applied from, and the oil film does not run out. Since the sliding surfaces on the outer peripheral surface of the traveling rail 4B (and the standing wall 4A) tend to be separated from each other by centrifugal force, a large frictional force does not act, but the sliding surface is supplied through the oil groove 51A. Since the lubricating oil constantly flows by centrifugal force,
After all, the oil film does not run out. Since the replenishment tank 54 has a sufficiently large capacity, long-time non-replenishment operation is possible.

[0020]

As described above, the present invention is provided with the rotary table which can rotate integrally with the lower bobbin and the slider having the upper bobbin which can run in the opposite direction along the guide rails provided around the rotary table. A braiding machine having a swing arm for moving the braided wire of the lower bobbin up and down with respect to the traveling path of the slider, wherein the rotating shaft of the swing arm has a braided wire of the lower bobbin. To
Since the guide roller for contacting and bending near the center of the rotating shaft and feeding the arm to the tip of the arm is provided, the swing arm can be moved up and down without substantially changing the path length of the braided wire.

Therefore, it is possible to prevent problems such as distortion of the braid due to fluctuations in the tension of the braided wire and disconnection of the braided wire, and it is possible to provide a highly reliable braiding machine. It plays.

[Brief description of drawings]

FIG. 1 is a perspective view showing a braiding portion of a braiding machine of the present application.

FIG. 2 is a side view showing a positional relationship between an upper bobbin carrier and a lower bobbin carrier.

FIG. 3 is an explanatory diagram showing a relationship between a slider structure and a guide roller.

FIG. 4 is a top view showing a relationship between an upper bobbin carrier, a slider, and a guide rail.

FIG. 5 is a sectional view showing a sliding surface between a slider and a guide roller.

FIG. 6 is an explanatory view showing a core material and a tubular braid.

[Explanation of symbols]

 1 rotary table 2 lower bobbin carrier 3 swing arm 4 guide rail 4A standing wall 4B running rail 5 (for upper bobbin carrier) slider 6 notch groove 7 fixing frame 8 guide roller 51 carrier slider 51A oil groove 52 segment gear 53 bevel gear 54 replenishment tank B1 Lower bobbin B2 Upper bobbin H1 Braided wire (bottom thread) H2 Braided wire (upper thread) S Core material J Lubricating oil F Felt (coating means)

Claims (2)

[Claims] 1. A rotary table having a lower bobbin, and an upper bobbin which is non-detachable with respect to a guide rail provided around the rotary table and which is engaged so as to be able to reversely travel through a plurality of sliding surfaces. In a braiding machine including a slider having a slider, the slider is provided with a lubricating oil replenishing tank, and a lubricating oil leaching from the replenishing tank is provided with a coating means capable of coating the sliding surface. Braiding machine. 2. The braiding machine according to claim 1, wherein the replenishment tank is provided with an indicator that allows the remaining amount of lubricating oil in the tank to be visually recognized from the outside.