JPS5837967Y2 - Pendulum type waiting device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a Benschlam type etching device installed in a drafting device of a roving frame or a fine spinning frame, and more specifically, the invention relates to a Benschlam type etching device that prevents the fibers of sliver or roving fed to the drafting device from being deposited. In addition, the structure is such that the accumulation of fluff can be prevented.

The draft device of a spinning machine as described above employs a pensulum type weighting device as a pressurizing device.

These waiting devices generally support a group of two top rollers and hold them under pressure against the bottom roller group, and are attached to a rocking shaft fixed to a roller stand so that it can swing and engage when pressurized. configured to be stopped.

For example, FIG. 1 shows an example of a Benschram type weighting device installed in a ring spinning machine.
', 4', and 5' are elastically supported via saddles 8, respectively.

On the other hand, the arm 7 is pivotably supported by a frame 12' fixedly attached to the locking shaft 6, and is configured such that its swing is locked in a pressurized state (as shown in the figure).
At the locking and holding position, the top rollers 3', 4', 5
' groups are respectively pressurized by pressure springs provided on the pivot portion sides of the individual saddles 8 to the bottom rollers 3, 4, and 5 groups.

When the top roller core is to be separated from the bottom roller group, the handle lever 9 is rotated in the direction of arrow A to release the locking of the arm.

The side plates 12.12 of the Muleyo 12' are made of small-sized cardboard, each of which is folded inward on its rear side (the right side in the drawing), and the appropriate portions of the bent edges are welded together 13. An arm 7 and a lever 9 are pivotally supported on the frame 12'.

Further, the frame 12' is constructed by threading a bolt 11 into a fixing plate 10 that is attached to pass through the frame 12' so that the fixing plate 10 is moved away from the locking shaft 6 and placed in position. Fix it.

However, since it is difficult to integrally mold the frame 12' formed in this way, as described above, the frame 12' is made of two side plates 12.
．． 12, the joints are partially welded as shown in FIG. 2, and gaps 14 are formed in other parts.

On the other hand, the sliver or braided yarn supplied to the drafting device passes over the locking shaft 6, but depending on the feeding position, it may come into contact with the rear end surface of the frame 12'. They often come into contact depending on the mounting position.

Therefore, the contact portion of the frame 12' needs to be finished smoothly.

Although it is desired that the gap 14 be welded over the entire surface and finished flat, a gap is intentionally left in order to maintain the shape and reduce manufacturing costs, and as soon as fibers get caught in this gap, they begin to accumulate. , may even penetrate into the frame 12'.

In addition, not only these attached fibers but also fluff are gradually accumulated in the gap 14.

These adhered fibers cannot be removed by blowing them away with a traveling cleaner, so manual cleaning is the only option.

The present invention has been made with attention to these points, and a cover that can be easily attached to the rear side of the frame 12', and that also closes the gap 14 and covers the edge part, has been devised. The object of the present invention is to provide an inexpensive waiting device that can be applied not only to new manufacturing and etching devices, but also to prevent fiber adhesion.

However, in the present invention, the frame 12 is engaged with the upper and lower open edges of both side plates on the rear side of the frame 12'.
It is constructed by attaching a cover that covers part of the rear surface and both sides.

The present invention will be described in detail above based on the drawings, but the drawings show one example of specific implementation, and the present invention is not limited to these illustrated examples, but the shape may be changed in accordance with the spirit of the descriptions described above and below. It can be implemented in the same way by changing the mounting method or by changing the mounting method.

3 is a partial side view of the device shown in FIG. 1 to which the present invention is applied; FIG. 4 is a sketch of the cover; FIG. 5 is a partially cutaway side view showing another embodiment of the present invention; 6 is a sectional view taken along section line IV-IV in FIG. 4, and FIG. 7 is a rear view of FIG. 5.

In these figures, a cover 15 that constitutes the main part of the present invention is shown.
is formed of an integral piece of synthetic resin material, and the frame 12'
It is formed by an outer wall 19 along the rear surface and side walls 16.16 formed inside both side edges of the outer wall 19, and the upper and lower ends of the outer wall 19 form an upper end wall 17 and a lower end wall 18, respectively, which are bent. It is recommended to form an engaging portion that protrudes inward (Fig. 4).

Preferably, the side walls 16, 16 are attached to the frame 12' with their distal ends inclined inwardly (FIG. 6).

The upper end wall 17 and the lower end wall 18 are configured to engage with the upper and lower ends of the rear bent edge of the frame 12', respectively.

That is, as shown in FIG. 1, the side plates 12, 12 of the frame 12' are formed with bent edges extending outward by the thickness of the material, so that there are stepped portions 20 on the upper and lower sides, respectively.
, 20, said end walls 17, 18 are advantageous for engaging this step.

At the time of attachment, the attachment can be ensured by engaging either the upper or lower end wall and pressing the other end wall toward the frame 12'.

Note that when the mounting bolt 11 is long or the flat cut portion formed on the locking shaft 6 is shallow, the head of the bottle 11 may be broken as shown in FIG.
It may protrude from the rear side of the frame 12', and the outer wall 19 of the cover 15 may be obstructed by this.

For this reason, a bolt retraction recess 19' may be formed in the outer wall 19 of the cover 15, and a bolt recess 19' formed in this way can also be applied to a bolt head in which the bolt head does not protrude.

Since the pensulam type etching device of the present invention is constructed by attaching the cover formed in this way to the frame of its mounting support, it is possible to close the gap formed on the rear side of the frame, and prevent deposits from accumulating in the vicinity. Fibers can be completely eliminated.

Furthermore, since the edge portions of the frame are also formed with smooth curved surfaces, it is possible to prevent fibers from getting caught, and the frame can be kept clean at all times by running the traveling cleaner.

Note that the cover 15 can be manufactured at low cost, and the degree of finishing of the frame can be reduced, so that an inexpensive waiting device can be provided.

You can enjoy benefits such as:

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of a Benschlam type etching device.
Fig. 2 is a rear view showing a part of the right side of Fig. 1, Fig. 3 is a partial side view to which the present invention is applied, and Fig. 4 is a sketch of the cover. Parts are shown broken away. Fig. 5 is a partially cutaway side view showing another embodiment of the present invention, Fig. 6 is a sectional view taken along cutting line ■■-I■ in Fig. 4, and Fig. 7 is a rear view showing the right side of Fig. 5. It is a diagram. 1...Waiting device, 6...Rocking shaft, 7...Arm, 8...
・Saddle, 9...Lever 10...Fixing plate, 11...Bolt, 12...Side plate,
13...Welding, 14...Gap, 15.
...Cover, 16...Side wall, 17°18
...End wall, 19...Outer wall, 20...
...Danbe.

Claims (1)

[Scope of utility model registration request] A Benschram-type etching device installed in a draft device of a spinning machine, in which the pivoting locking and holding support portion of the swinging arm is attached to a locking shaft provided on a roller stand, and the support portion is attached to two side plates. and is constructed in a frame whose rear side ends are bent inward to form a gap, the rear side and the rear edges of both side plates being held on the rear side of the frame. The present invention is characterized in that a cover is attached to cover the frame, and the cover is provided with engaging portions formed inside the upper and lower end walls thereof so as to engage with the upper and lower bent edges of the rear end surface of the frame. Benschram type etching device.