JPH0444629Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] A clearer attached to the draft device of a spinning machine, in particular a clearer material formed into a cylindrical shape and held, and brought into contact with a draft roller or draft apron. This part-type clearer is constructed so that the clearer material can be easily installed and replaced.

[Prior Art] A top clearer device and an under clearer device are attached to a draft roller or a draft apron of a spinning machine. The top clearer device is provided in opposition to one or more draft top rollers or a top apron, and the under clearer device is provided in opposition to one or more bottom rollers or a bottom apron. Each of these clearer devices peels off fibers that try to adhere to the roller or apron, and also actively removes adhering fiber waste or impurities.

On the other hand, felt, non-woven fabric, synthetic rubber, etc. are used as the clearer material for such a clearer, but in particular, these clearer materials are used in order to make surface contact with a single draft roller and maintain appropriate contact pressure. Form it into a cylinder shape and attach it to the holding frame.
A part-type clearer is used in which this mounting and holding frame is placed opposite to a draft roller and pressed against the roller by utilizing the elasticity of the clearer itself. In such a clearer, a clearer material that is long in the axial direction is used depending on the working width of the draft roller, or one clearer is installed opposite to each draft roller that spans multiple spindles between roller stands. There is also. In addition, these clearers are fixedly installed at a fixed position relative to the draft roller, or the clearer is actively moved perpendicular to the roller axis in order to remove the peeled and accumulated fiber waste and to always keep the cleaning surface along the roller. A scratch clearer is also used that moves the object slightly in the direction of the object.

By the way, such a part-type clearer generally has a cylindrical clearer material inside a channel-type holding frame, and to attach it, a channel-shaped presser frame similar to the holding frame is inserted inside the clearer material to hold it. The clearer material is held between the frame and the presser frame by tightening them together. However, in a long part-type clearer, a plurality of screws are used for this tightening, and these screws naturally pass through the clearer. Therefore, it is not only impossible to change the mounting position of the clearer material to update the contact surface, but it is also necessary to prepare screw through holes in the clearer material in advance, which shortens the service life of the clearer material and makes it difficult to assemble. It takes a lot of effort.

[Problems to be Solved by the Invention] Therefore, the present invention improves the means for tightening the holding frame and presser frame of the part-type clearer, so that the clearer material can be easily attached and detached, and the clearer material can be securely attached and retained. The object of the present invention is to provide a part-type clearer whose service life can be extended by changing the mounting position of the clearer material and whose assembly work can be completed in a short time.

[Means for Solving the Problems] That is, the present invention provides a patch-type clearer as described above, in which plate-shaped clips are attached and detached from both ends of the clearer for pinching and supporting the holding frame and the presser frame along the length direction. It is configured to fit into the

[Operations and Examples] The present invention will be explained in detail below based on the drawings. The figures show the present invention adapted to a bottom roller and a bottom apron of a ring spinning machine, and also show a case in which a plurality of part-type clearers are slid. Although the invention has been shown to be applied to a scratch clearer attached to a frame, it can be similarly applied to a patch clearer installed independently on the bottom roller or top roller of a draft device of other spinning machines. Figure 1 (side view), Figure 2 (top view), and Figure 3 (bottom view) show the part-type clearer of the present invention.The part-type clearer 1 is shown in Figure 4 (expanded view for assembly). As shown, a clearer material 2 made of synthetic rubber or the like is molded into a cylindrical shape and cut into a predetermined length. In the illustrated example, the length of the clearer extends over six spindles between the roller stands, but these can be formed to an appropriate length using the draft portion.
Reference numeral 3 indicates a clearer holding frame, which is a conventionally known channel-shaped frame, in which the clearer material 2 is placed inside. On the other hand, a channel-shaped presser frame 4 formed to have the same length as the holding frame 3 is housed inside the interior clearer material 2, and both ends of the channel-type presser frame 4 are supported by clamping with clips 5. As shown in FIG. 4, the clip 5 is formed by bending an elastic steel plate having a width that can be inserted into the inside of the presser frame 4 as shown. That is, clip 5
The clearer material 2 is sandwiched between the presser frame 4 and the holding frame 3, and the clearer material 2 is bent at an interval between the two sides. The side 5b is arranged along the inner surface of the presser frame 4, and an engaging portion 5aa bent inward is formed at the tip of the long side 5a. Note that this engaging portion 5aa has a slight height (2 to 3 mm). On the other hand, the tip of the short side 5b forms a curved upward guide portion 5bb to facilitate insertion of the clip 5. On the other hand, on both sides of the bottom of the holding frame 3, there are 6
Fitting holes 6, 6 shown as , are formed, and this position is a position where the long side engaging portion 5aa fits when the clip 5 is inserted. Therefore, the clip 5 is pushed and inserted with force so as to be spread, and the clearer material 2 is held under pressure via the presser frame 4 and the holding frame 3, and the engaging portion 5aa engages with the fitting hole 6, and a special The clip 5 is fitted so that it will not come off unless a tool is used. If necessary, anti-slip marks such as knurled grooves may be formed on the entire surface of the outer circumferential surface of the presser frame 4 or on both side surfaces at both ends, and on the entire surface or both end surfaces of the inner side of the holding frame 3. By doing so, the clearer material holding power of the clip 5 can be made even more effective.

Fig. 5 shows a part-type clearer 1 constructed in this way installed opposite to the bottom roller of a draft device of a ring spinning machine, which is particularly constructed with a double apron. As shown in the partially enlarged view), the third bottom roller 9, the first bottom apron 10, and the back bottom roller 11 are provided opposite to each other.
These clearers are attached to sliding frames 14, 14 on the left and right sides, respectively, via brackets 15. As shown in FIG. 4, the bracket 15 is fixed in advance to a predetermined portion of the holding frame 3 by spot welding. Further, this embodiment is of a scratcher type, and the sliding frames 14, 1
4 are respectively connected to the reciprocating sliding frame 14a via a connecting portion 22, as shown in FIGS. 6 and 7 (a plan view shown in the direction of the arrow in FIG. The engagement arm 22a provided on the sliding frame 14 side
(Fig. 6) is detachably attached to the movable sliding frame 14a and the pin. The movable sliding frame 14a includes a support pulley 20 (FIG. 1) loosely supported on the locking shaft 12 via a bracket 13, and an operating arm 2 extending from an oscillating device (not shown).
It moves back and forth while being supported by 1. If necessary, the supporting pulley 20 may be removed and the connecting engagement arm 22a provided on the sliding frame 14 may be configured to be removably connected to the operating arm rod 21 directly connected to the oscillating device. The rear side height maintenance and the reciprocating operation of 14 may be performed together. Other sliding frame 1
A support shaft 16 is freely supported on the front side of 4 and 14,
Swing arms 17, 1 are attached to both ends of this support shaft 16.
7 is pivoted. And this swing arm 17
are the protruding shafts 18 provided on the roller stands 19, respectively.
In the engaged state, the clearer 1 comes into contact with the bottom roller and the bottom apron. Therefore, although the clearer 1 is shown to move back and forth while swinging the swing arm 17 by moving the operating arm rod 21 in the direction of the arrow, the present invention is applicable to other clearer devices as described above.

In addition, the figure shows a clip that is moored by bending the tip of the clip along the holding frame slightly inward and fitting it into a fitting hole formed on the bottom of the holding frame. Instead of this, a bulging protrusion may be used, or a wave-shaped curved surface may be used to anchor the clip to the fitting hole, or a protrusion, groove, or protrusion may be provided instead of the fitting hole to anchor the clip. The design of these fitting means can be changed freely.

[Effects of the invention] In this part-type clearer, the means for tightening the holding frame and presser frame is constructed of clips inserted into both ends of the holding frame, and the clips are moored through fitting holes formed in the holding frame. Therefore, when assembling the clearer, it is not only possible to simply insert a clip, but also to easily replace the clearer material and change the contact portion. In addition, the clip can be securely fastened and does not fall off during use.
The service life of the clearer material can be extended and the cleaning effect can also be improved.

[Brief explanation of the drawing]

Figure 1 is a side view of the patch-type clearer of the present invention.
Fig. 2 is a plan view of Fig. 1, Fig. 3 is a bottom view of Fig. 2, Fig. 4 is a developed view for explaining the assembly of the present invention, and Fig. 5 is a plan view of Fig. 1.
The figure is a side view showing an application example of the present invention, and is a view taken along the cutting line - in FIG. 7, FIG. 6 is a partially enlarged view of FIG. 5, and FIG. 7 is in the direction of arrow A in FIG. A plan view is shown with some parts omitted. 1...Put type clearer of the present invention, 2...Clearer material, 3...Holding frame, 4...Press frame, 5...
Clip, 6... Fitting hole, 7... Front bottom roller, 8... Second bottom apron, 9
... Third bottom roller, 10 ... First bottom apron, 11 ... Back bottom roller, 12 ... Locking shaft, 13 ... Bracket, 14 ... Sliding frame, 15 ... Bracket,
16... Support shaft, 17... Swing arm, 18...
... Protruding shaft, 19 ... Roller stand, 20 ... Support pulley, 21 ... Operating arm lever, 22 ... Connection part, 23
...Connection board.

Claims (1)

[Scope of utility model registration request] A clearer material such as synthetic rubber or synthetic leather is formed into a cylindrical shape and fitted into a channel-shaped holding frame, and a channel-shaped holding frame is also fitted inside the cylindrical clearer material to hold the clearer material with each frame. A part-type clearer for holding a material, characterized in that a plate-shaped clip for supporting a holding frame and a presser frame with pressure is removably fitted on both ends of the clearer. Clearer.